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Weng J, Chen YF, Li SH, Lv YH, Chen RB, Xu GL, Lin SY, Bai KH. Endoscopic ultrasonography-related diagnostic accuracy and clinical significance on small rectal neuroendocrine neoplasms. World J Gastroenterol 2024; 30:774-778. [PMID: 38515953 PMCID: PMC10950619 DOI: 10.3748/wjg.v30.i7.774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/19/2023] [Accepted: 01/24/2024] [Indexed: 02/21/2024] Open
Abstract
This research aimed to examine the diagnostic accuracy and clinical significance of endoscopic ultrasonography (EUS) in the context of small rectal neuroendocrine neoplasms (NENs). A total of 108 patients with rectal subepithelial lesions (SELs) with a diameter of < 20 mm were included in the analysis. The diagnosis and depth assessment of EUS was compared to the histology findings. The prevalence of NENs in rectal SELs was 78.7% (85/108). The sensitivity of EUS in detecting rectal NENs was 98.9% (84/85), while the specificity was 52.2% (12/23). Overall, the diagnostic accuracy of EUS in identifying rectal NENs was 88.9% (96/108). The overall accuracy rate for EUS in assessing the depth of invasion in rectal NENs was 92.9% (78/84). Therefore, EUS demonstrates reasonable diagnostic accuracy in detecting small rectal NENs, with good sensitivity but inferior specificity. EUS may also assist physicians in assessing the depth of invasion in small rectal NENs before endoscopic excision.
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Affiliation(s)
- Jun Weng
- Department of Endoscopy, Sun Yat-Sen University Cancer Center, Guangzhou 510060, Guangdong Province, China
- State Key Laboratory of Oncology in South China, Guangzhou 510060, Guangdong Province, China
- Guangdong Provincial Clinical Research Center for Cancer, Guangzhou 510060, Guangdong Province, China
| | - Yu-Fan Chen
- Department of Endoscopy, Sun Yat-Sen University Cancer Center, Guangzhou 510060, Guangdong Province, China
- State Key Laboratory of Oncology in South China, Guangzhou 510060, Guangdong Province, China
- Guangdong Provincial Clinical Research Center for Cancer, Guangzhou 510060, Guangdong Province, China
| | - Shu-Han Li
- Department of Management, Clinical Medical College of Tianjin Medical University, Tianjin 300000, China
| | - Yan-Hua Lv
- Cancer Prevention Center, Sun Yat-Sen University Cancer Center, Guangzhou 510060, Guangdong Province, China
| | - Ruo-Bing Chen
- Cancer Prevention Center, Sun Yat-Sen University Cancer Center, Guangzhou 510060, Guangdong Province, China
| | - Guo-Liang Xu
- Department of Endoscopy, Sun Yat-Sen University Cancer Center, Guangzhou 510060, Guangdong Province, China
- State Key Laboratory of Oncology in South China, Guangzhou 510060, Guangdong Province, China
- Guangdong Provincial Clinical Research Center for Cancer, Guangzhou 510060, Guangdong Province, China
| | - Shi-Yong Lin
- Department of Endoscopy, Sun Yat-Sen University Cancer Center, Guangzhou 510060, Guangdong Province, China
- State Key Laboratory of Oncology in South China, Guangzhou 510060, Guangdong Province, China
- Guangdong Provincial Clinical Research Center for Cancer, Guangzhou 510060, Guangdong Province, China
| | - Kun-Hao Bai
- Department of Endoscopy, Sun Yat-Sen University Cancer Center, Guangzhou 510060, Guangdong Province, China
- State Key Laboratory of Oncology in South China, Guangzhou 510060, Guangdong Province, China
- Guangdong Provincial Clinical Research Center for Cancer, Guangzhou 510060, Guangdong Province, China
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2
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Zhang XJ, Han BB, Shao ZY, Yan R, Gao J, Liu T, Jin ZY, Lai W, Xu ZM, Wang CH, Zhang F, Gu C, Wang Y, Wang H, Walsh CP, Guo F, Xu GL, Du YR. Auto-suppression of Tet dioxygenases protects the mouse oocyte genome from oxidative demethylation. Nat Struct Mol Biol 2024; 31:42-53. [PMID: 38177668 DOI: 10.1038/s41594-023-01125-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 09/14/2023] [Indexed: 01/06/2024]
Abstract
DNA cytosine methylation plays a vital role in repressing retrotransposons, and such derepression is linked with developmental failure, tumorigenesis and aging. DNA methylation patterns are formed by precisely regulated actions of DNA methylation writers (DNA methyltransferases) and erasers (TET, ten-eleven translocation dioxygenases). However, the mechanisms underlying target-specific oxidation of 5mC by TET dioxygenases remain largely unexplored. Here we show that a large low-complexity domain (LCD), located in the catalytic part of Tet enzymes, negatively regulates the dioxygenase activity. Recombinant Tet3 lacking LCD is shown to be hyperactive in converting 5mC into oxidized species in vitro. Endogenous expression of the hyperactive Tet3 mutant in mouse oocytes results in genome-wide 5mC oxidation. Notably, the occurrence of aberrant 5mC oxidation correlates with a consequent loss of the repressive histone mark H3K9me3 at ERVK retrotransposons. The erosion of both 5mC and H3K9me3 causes ERVK derepression along with upregulation of their neighboring genes, potentially leading to the impairment of oocyte development. These findings suggest that Tet dioxygenases use an intrinsic auto-regulatory mechanism to tightly regulate their enzymatic activity, thus achieving spatiotemporal specificity of methylome reprogramming, and highlight the importance of methylome integrity for development.
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Affiliation(s)
- Xiao-Jie Zhang
- CAS Key Laboratory of Epigenetic Regulation and Intervention, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Bin-Bin Han
- CAS Key Laboratory of Epigenetic Regulation and Intervention, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Zhen-Yu Shao
- CAS Key Laboratory of Epigenetic Regulation and Intervention, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Rui Yan
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China
| | - Juan Gao
- CAS Key Laboratory of Epigenetic Regulation and Intervention, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ting Liu
- CAS Key Laboratory of Epigenetic Regulation and Intervention, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
- School of Life Science and Technology, Shanghai Tech University, Shanghai, China
| | - Zi-Yang Jin
- CAS Key Laboratory of Epigenetic Regulation and Intervention, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Weiyi Lai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Zhi-Mei Xu
- CAS Key Laboratory of Epigenetic Regulation and Intervention, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Chao-Han Wang
- CAS Key Laboratory of Epigenetic Regulation and Intervention, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Fengjuan Zhang
- CAS Key Laboratory of Epigenetic Regulation and Intervention, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Chan Gu
- Changping Laboratory, Beijing, China
| | - Yin Wang
- Shanghai Key Laboratory of Medical Epigenetics, Institutes of Biomedical Sciences, Chinese Academy of Medical Sciences (RU069) and Zhongshan-Xuhui Hospital, Medical College of Fudan University, Shanghai, China
| | - Hailin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Colum P Walsh
- Genomic Medicine Research Group, Biomedical Sciences, Ulster University, Coleraine, UK
- Department of Cell Biology, Institute for Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Fan Guo
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China
| | - Guo-Liang Xu
- CAS Key Laboratory of Epigenetic Regulation and Intervention, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.
- Shanghai Key Laboratory of Medical Epigenetics, Institutes of Biomedical Sciences, Chinese Academy of Medical Sciences (RU069) and Zhongshan-Xuhui Hospital, Medical College of Fudan University, Shanghai, China.
| | - Ya-Rui Du
- CAS Key Laboratory of Epigenetic Regulation and Intervention, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.
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3
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Xie J, Sheng M, Rong S, Zhou D, Wang C, Wu W, Huang J, Sun Y, Wang Y, Chen P, Wu Y, Wang Y, Wang L, Zhou BO, Huang X, Walsh CP, Bohlander SK, Huang J, Wang X, Xu GL, Gao H, Shi Y. STING activation in TET2-mutated hematopoietic stem/progenitor cells contributes to the increased self-renewal and neoplastic transformation. Leukemia 2023; 37:2457-2467. [PMID: 37816954 PMCID: PMC10681905 DOI: 10.1038/s41375-023-02055-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/13/2023] [Accepted: 09/29/2023] [Indexed: 10/12/2023]
Abstract
Somatic loss-of-function mutations of the dioxygenase Ten-eleven translocation-2 (TET2) occur frequently in individuals with clonal hematopoiesis (CH) and acute myeloid leukemia (AML). These common hematopoietic disorders can be recapitulated in mouse models. However, the underlying mechanisms by which the deficiency in TET2 promotes these disorders remain unclear. Here we show that the cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS)-stimulator of interferon genes (STING) pathway is activated to mediate the effect of TET2 deficiency in dysregulated hematopoiesis in mouse models. DNA damage arising in Tet2-deficient hematopoietic stem/progenitor cells (HSPCs) leads to activation of the cGAS-STING pathway which in turn promotes the enhanced self-renewal and development of CH. Notably, both pharmacological inhibition and genetic deletion of STING suppresses Tet2 mutation-induced aberrant hematopoiesis. In patient-derived xenograft (PDX) models, STING inhibition specifically attenuates the proliferation of leukemia cells from TET2-mutated individuals. These observations suggest that the development of CH associated with TET2 mutations is powered through chronic inflammation dependent on the activated cGAS-STING pathway and that STING may represent a potential target for intervention of relevant hematopoietic diseases.
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Affiliation(s)
- Jiaying Xie
- Institutes of Biomedical Sciences, Shanghai Xuhui Central Hospital, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, 200032, China
| | - Mengyao Sheng
- Institutes of Biomedical Sciences, Shanghai Xuhui Central Hospital, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, 200032, China
| | - Shaoqin Rong
- Institutes of Biomedical Sciences, Shanghai Xuhui Central Hospital, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, 200032, China
| | - Dan Zhou
- Center for Medical Research and Innovation, Shanghai Pudong Hospital, Institutes of Biomedical Sciences, Medical College of Fudan University, Shanghai, 201399, China
| | - Chao Wang
- China State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Wanling Wu
- Department of Hematology, Huashan Hospital, Fudan University, Shanghai, 200024, China
| | - Jingru Huang
- Institutes of Biomedical Sciences, Shanghai Xuhui Central Hospital, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, 200032, China
| | - Yue Sun
- Institutes of Biomedical Sciences, Shanghai Xuhui Central Hospital, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, 200032, China
| | - Yin Wang
- Institutes of Biomedical Sciences, Shanghai Xuhui Central Hospital, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, 200032, China
| | - Pingyue Chen
- Institutes of Biomedical Sciences, Shanghai Xuhui Central Hospital, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, 200032, China
| | - Yushuang Wu
- Institutes of Biomedical Sciences, Shanghai Xuhui Central Hospital, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, 200032, China
| | - Yuanxian Wang
- Institutes of Biomedical Sciences, Shanghai Xuhui Central Hospital, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, 200032, China
| | - Lan Wang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Bo O Zhou
- China State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Xinxin Huang
- Institutes of Biomedical Sciences, Shanghai Xuhui Central Hospital, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, 200032, China
| | - Colum P Walsh
- Genomic Medicine Research Group, Biomedical Sciences, Ulster University, Coleraine, BT52 1SA, UK
- Centre for Research and Development, Region Gävleborg/Uppsala University, Gävle, Sweden
| | - Stefan K Bohlander
- Leukaemia & Blood Cancer Research Unit, Department of Molecular Medicine and Pathology, The University of Auckland, Auckland, New Zealand
| | - Jian Huang
- Coriell Institute for Medical Research, Camden, NJ, 08103, USA
- Temple University Lewis Katz School of Medicine, Center for Metabolic Disease Research, Philadelphia, PA, 19140, USA
| | - Xiaoqin Wang
- Department of Hematology, Huashan Hospital, Fudan University, Shanghai, 200024, China
| | - Guo-Liang Xu
- Institutes of Biomedical Sciences, Shanghai Xuhui Central Hospital, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, 200032, China.
- China State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China.
| | - Hai Gao
- Institutes of Biomedical Sciences, Shanghai Xuhui Central Hospital, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, 200032, China.
| | - Yuheng Shi
- Institutes of Biomedical Sciences, Shanghai Xuhui Central Hospital, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, 200032, China.
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Shanghai, Huadong Hospital, Shanghai, 200040, China.
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4
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You XY, Jiang L, Wang WF, Xu X, Zhang SW, Liu HN, Yan XJ, Nie P, Li BT, Xu GL. [Metabolomic study on urine of chronic inflammation rats treated with Buyang Huanwu Decoction based on UPLC-Q-TOF-MS]. Zhongguo Zhong Yao Za Zhi 2023; 48:5345-5355. [PMID: 38114124 DOI: 10.19540/j.cnki.cjcmm.20230510.401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
The study investigated the effect of Buyang Huanwu Decoction(BYHWD) on endogenous biomarkers in the urine of rats with chronic inflammation induced by lipopolysaccharide(LPS) using ultra-high performance liquid chromatography-quadrupole-time-of-flight-mass spectrometry(UPLC-Q-TOF-MS), aiming to elucidate the molecular mechanism underlying the therapeutic effect of BYHWD on chronic inflammation from a metabolomics perspective. Male SD rats were randomly divided into a normal group, a model group, and low-, medium-, and high-dose BYHWD groups(7.5, 15, and 30 g·kg~(-1)). The model group and BYHWD groups received tail intravenous injection of LPS(200 μg·kg~(-1)) on the first day of each week, followed by oral administration of BYHWD once a day for four consecutive weeks. Urine samples were collected at the end of the administration period, and UPLC-Q-TOF-MS was used to analyze the metabolic profiles of the rat urine in each group. Multivariate statistical analysis methods such as principal component analysis(PCA), partial least squares-discriminant analysis(PLS-DA), and orthogonal partial least squares-discriminant analysis(OPLS-DA) were used to analyze the effect of BYHWD on endogenous metabolites. One-way ANOVA and variable importance for the projection(VIP) were used to screen for potential biomarkers related to chronic inflammation. The identified biomarkers were subjected to pathway and enrichment analysis using MetaboAnalyst 5.0. A total of 25 potential biomarkers were screened and identified in the rat urine in this experiment. Compared with the normal group, the model group showed significant increases in the levels of 14 substances(P<0.05) and significant decreases in the levels of 11 substances(P<0.05). BYHWD was able to effectively reverse the trend of most endogenous biomarkers. Compared with the model group, BYHWD significantly down-regulated 13 biomarkers(P<0.05) and up-regulated 10 biomarkers(P<0.05). The metabolic products were mainly related to the biosynthesis of pantothenic acid and coenzyme A, tryptophan metabolism, retinol metabolism, and propionate metabolism. BYHWD has therapeutic effect on chronic inflammation induced by LPS, which may be related to its ability to improve the levels of endogenous metabolites, enhance the body's anti-inflammatory and antioxidant capabilities, and restore normal metabolic activity.
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Affiliation(s)
- Xin-Yi You
- Jiangxi Provincial Key Laboratory of Traditional Chinese Medicine Etiopathogenisis, Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory, Jiangxi University of Chinese Medicine Nanchang 330004, China
| | - Li Jiang
- Jiangxi Provincial Key Laboratory of Traditional Chinese Medicine Etiopathogenisis, Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory, Jiangxi University of Chinese Medicine Nanchang 330004, China Key Laboratory of Pharmacology of Traditional Chinese Medicine in Jiangxi Nanchang 330004, China
| | - Wen-Feng Wang
- Jiangxi Provincial Key Laboratory of Traditional Chinese Medicine Etiopathogenisis, Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory, Jiangxi University of Chinese Medicine Nanchang 330004, China
| | - Xia Xu
- Qilu Hospital of Shandong University Dezhou Hospital Dezhou 253000, China
| | - Shou-Wen Zhang
- Research Center for Traditional Chinese Medicine Resources and Ethnic Minority Medicine, Jiangxi University of Chinese Medicine Nanchang 330004, China
| | - Hong-Ning Liu
- Jiangxi Provincial Key Laboratory of Traditional Chinese Medicine Etiopathogenisis, Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory, Jiangxi University of Chinese Medicine Nanchang 330004, China
| | - Xiao-Jun Yan
- Jiangxi Provincial Key Laboratory of Traditional Chinese Medicine Etiopathogenisis, Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory, Jiangxi University of Chinese Medicine Nanchang 330004, China
| | - Peng Nie
- Jiangxi Provincial Key Laboratory of Traditional Chinese Medicine Etiopathogenisis, Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory, Jiangxi University of Chinese Medicine Nanchang 330004, China
| | - Bing-Tao Li
- Jiangxi Provincial Key Laboratory of Traditional Chinese Medicine Etiopathogenisis, Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory, Jiangxi University of Chinese Medicine Nanchang 330004, China Key Laboratory of Pharmacology of Traditional Chinese Medicine in Jiangxi Nanchang 330004, China
| | - Guo-Liang Xu
- Jiangxi Provincial Key Laboratory of Traditional Chinese Medicine Etiopathogenisis, Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory, Jiangxi University of Chinese Medicine Nanchang 330004, China Key Laboratory of Pharmacology of Traditional Chinese Medicine in Jiangxi Nanchang 330004, China
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5
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Liu W, Lu JY, Wang YJ, Xu XX, Chen YC, Yu SX, Xiang XW, Chen XZ, Jiu Y, Gao H, Sheng M, Chen ZJ, Hu X, Li D, Maiuri P, Huang X, Ying T, Xu GL, Pang DW, Zhang ZL, Liu B, Liu YJ. Vaccinia virus induces EMT-like transformation and RhoA-mediated mesenchymal migration. J Med Virol 2023; 95:e29041. [PMID: 37621182 DOI: 10.1002/jmv.29041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/17/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023]
Abstract
The emerging outbreak of monkeypox is closely associated with the viral infection and spreading, threatening global public health. Virus-induced cell migration facilitates viral transmission. However, the mechanism underlying this type of cell migration remains unclear. Here we investigate the motility of cells infected by vaccinia virus (VACV), a close relative of monkeypox, through combining multi-omics analyses and high-resolution live-cell imaging. We find that, upon VACV infection, the epithelial cells undergo epithelial-mesenchymal transition-like transformation, during which they lose intercellular junctions and acquire the migratory capacity to promote viral spreading. After transformation, VACV-hijacked RhoA signaling significantly alters cellular morphology and rearranges the actin cytoskeleton involving the depolymerization of robust actin stress fibers, leading-edge protrusion formation, and the rear-edge recontraction, which coordinates VACV-induced cell migration. Our study reveals how poxviruses alter the epithelial phenotype and regulate RhoA signaling to induce fast migration, providing a unique perspective to understand the pathogenesis of poxviruses.
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Affiliation(s)
- Wei Liu
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Shanghai Stomatological Hospital, Institutes of Biomedical Sciences, Department of Chemistry, Fudan University, Shanghai, China
| | - Jia-Yin Lu
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Shanghai Stomatological Hospital, Institutes of Biomedical Sciences, Department of Chemistry, Fudan University, Shanghai, China
| | - Ya-Jun Wang
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Shanghai Stomatological Hospital, Institutes of Biomedical Sciences, Department of Chemistry, Fudan University, Shanghai, China
| | - Xin-Xin Xu
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Shanghai Stomatological Hospital, Institutes of Biomedical Sciences, Department of Chemistry, Fudan University, Shanghai, China
| | - Yu-Chen Chen
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Shanghai Stomatological Hospital, Institutes of Biomedical Sciences, Department of Chemistry, Fudan University, Shanghai, China
| | - Sai-Xi Yu
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Shanghai Stomatological Hospital, Institutes of Biomedical Sciences, Department of Chemistry, Fudan University, Shanghai, China
| | - Xiao-Wei Xiang
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Shanghai Stomatological Hospital, Institutes of Biomedical Sciences, Department of Chemistry, Fudan University, Shanghai, China
| | - Xue-Zhu Chen
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Shanghai Stomatological Hospital, Institutes of Biomedical Sciences, Department of Chemistry, Fudan University, Shanghai, China
| | - Yaming Jiu
- The Center for Microbes, Development and Health, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Hai Gao
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Shanghai Stomatological Hospital, Institutes of Biomedical Sciences, Department of Chemistry, Fudan University, Shanghai, China
| | - Mengyao Sheng
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Shanghai Stomatological Hospital, Institutes of Biomedical Sciences, Department of Chemistry, Fudan University, Shanghai, China
| | - Zheng-Jun Chen
- State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
| | - Xinyao Hu
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, College of Life Sciences, Institute of Biophysics, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Dong Li
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, College of Life Sciences, Institute of Biophysics, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Paolo Maiuri
- Department of Molecular Medicine and Medical Biotechnology, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Xinxin Huang
- Shanghai Key Laboratory of Medical Epigenetics, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Tianlei Ying
- MOE/NHC/CAMS Key Laboratory of Medical Molecular Virology, Shanghai Institute of Infectious Disease and Biosecurity, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Guo-Liang Xu
- Shanghai Key Laboratory of Medical Epigenetics, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Dai-Wen Pang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Frontiers Science Center for New Organic Matter, Research Center for Analytical Sciences, Frontiers Science Center for Cell Responses, College of Chemistry, Nankai University, Tianjin, China
| | - Zhi-Ling Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, China
| | - Baohong Liu
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Shanghai Stomatological Hospital, Institutes of Biomedical Sciences, Department of Chemistry, Fudan University, Shanghai, China
| | - Yan-Jun Liu
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Shanghai Stomatological Hospital, Institutes of Biomedical Sciences, Department of Chemistry, Fudan University, Shanghai, China
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6
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Li Q, Lu J, Yin X, Chang Y, Wang C, Yan M, Feng L, Cheng Y, Gao Y, Xu B, Zhang Y, Wang Y, Cui G, Xu L, Sun Y, Zeng R, Li Y, Jing N, Xu GL, Wu L, Tang F, Li J. Base editing-mediated one-step inactivation of the Dnmt gene family reveals critical roles of DNA methylation during mouse gastrulation. Nat Commun 2023; 14:2922. [PMID: 37217538 DOI: 10.1038/s41467-023-38528-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 05/05/2023] [Indexed: 05/24/2023] Open
Abstract
During embryo development, DNA methylation is established by DNMT3A/3B and subsequently maintained by DNMT1. While much research has been done in this field, the functional significance of DNA methylation in embryogenesis remains unknown. Here, we establish a system of simultaneous inactivation of multiple endogenous genes in zygotes through screening for base editors that can efficiently introduce a stop codon. Embryos with mutations in Dnmts and/or Tets can be generated in one step with IMGZ. Dnmt-null embryos display gastrulation failure at E7.5. Interestingly, although DNA methylation is absent, gastrulation-related pathways are down-regulated in Dnmt-null embryos. Moreover, DNMT1, DNMT3A, and DNMT3B are critical for gastrulation, and their functions are independent of TET proteins. Hypermethylation can be sustained by either DNMT1 or DNMT3A/3B at some promoters, which are related to the suppression of miRNAs. The introduction of a single mutant allele of six miRNAs and paternal IG-DMR partially restores primitive streak elongation in Dnmt-null embryos. Thus, our results unveil an epigenetic correlation between promoter methylation and suppression of miRNA expression for gastrulation and demonstrate that IMGZ can accelerate deciphering the functions of multiple genes in vivo.
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Affiliation(s)
- Qing Li
- State Key Laboratory of Cell Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Jiansen Lu
- School of Life Sciences, Biomedical Pioneering Innovation Center, Beijing Advanced Innovation Center for Genomics, Peking University, Beijing, China
| | - Xidi Yin
- State Key Laboratory of Cell Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Yunjian Chang
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Chao Wang
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Meng Yan
- School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
| | - Li Feng
- Institute of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
- CAS Key Laboratory of Systems Biology, Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
- Bio-Med Big Data Center, Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Yanbo Cheng
- School of Life Science and Technology, Shanghai Tech University, Shanghai, China
| | - Yun Gao
- School of Life Sciences, Biomedical Pioneering Innovation Center, Beijing Advanced Innovation Center for Genomics, Peking University, Beijing, China
| | - Beiying Xu
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Yao Zhang
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Yingyi Wang
- School of Life Science and Technology, Shanghai Tech University, Shanghai, China
| | - Guizhong Cui
- State Key Laboratory of Cell Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Luang Xu
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Yidi Sun
- Institute of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Rong Zeng
- CAS Key Laboratory of Systems Biology, Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
| | - Yixue Li
- Bio-Med Big Data Center, Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Naihe Jing
- State Key Laboratory of Cell Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Guo-Liang Xu
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China.
| | - Ligang Wu
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China.
| | - Fuchou Tang
- School of Life Sciences, Biomedical Pioneering Innovation Center, Beijing Advanced Innovation Center for Genomics, Peking University, Beijing, China.
| | - Jinsong Li
- State Key Laboratory of Cell Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China.
- School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China.
- School of Life Science and Technology, Shanghai Tech University, Shanghai, China.
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7
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Chen H, Yang QL, Xu JX, Deng X, Zhang YJ, Liu T, Rots MG, Xu GL, Huang KY. Efficient methods for multiple types of precise gene-editing in Chlamydomonas. Plant J 2023. [PMID: 37310200 DOI: 10.1111/tpj.16265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/20/2023] [Accepted: 04/26/2023] [Indexed: 06/14/2023]
Abstract
Precise gene-editing using CRISPR/Cas9 technology remains a long-standing challenge, especially for genes with low expression and no selectable phenotypes in Chlamydomonas reinhardtii, a classic model for photosynthesis and cilia research. Here, we developed a multi-type and precise genetic manipulation method in which a DNA break was generated by Cas9 nuclease and the repair was mediated using a homologous DNA template. The efficacy of this method was demonstrated for several types of gene editing, including inactivation of two low-expression genes (CrTET1 and CrKU80), the introduction of a FLAG-HA epitope tag into VIPP1, IFT46, CrTET1 and CrKU80 genes, and placing a YFP tag into VIPP1 and IFT46 for live-cell imaging. We also successfully performed a single amino acid substitution for the FLA3, FLA10 and FTSY genes, and documented the attainment of the anticipated phenotypes. Lastly, we demonstrated that precise fragment deletion from the 3'-UTR of MAA7 and VIPP1 resulted in a stable knock-down effect. Overall, our study has established efficient methods for multiple types of precise gene editing in Chlamydomonas, enabling substitution, insertion and deletion at the base resolution, thus improving the potential of this alga in both basic research and industrial applications.
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Affiliation(s)
- Hui Chen
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Qing-Lin Yang
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Jia-Xi Xu
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xuan Deng
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Yun-Jie Zhang
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Ting Liu
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Marianne G Rots
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, 9713 GZ, Groningen, The Netherlands
| | - Guo-Liang Xu
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
- Shanghai Key Laboratory of Medical Epigenetics, Laboratory of Cancer Epigenetics, Institutes of Biomedical Sciences, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, China
| | - Kai-Yao Huang
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
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8
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Chen GD, Fatima I, Xu Q, Rozhkova E, Fessing MY, Mardaryev AN, Sharov AA, Xu GL, Botchkarev VA. DNA dioxygenases Tet2/3 regulate gene promoter accessibility and chromatin topology in lineage-specific loci to control epithelial differentiation. Sci Adv 2023; 9:eabo7605. [PMID: 36630508 PMCID: PMC9833667 DOI: 10.1126/sciadv.abo7605] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 12/05/2022] [Indexed: 05/03/2023]
Abstract
Execution of lineage-specific differentiation programs requires tight coordination between many regulators including Ten-eleven translocation (TET) family enzymes, catalyzing 5-methylcytosine oxidation in DNA. Here, by using Keratin 14-Cre-driven ablation of Tet genes in skin epithelial cells, we demonstrate that ablation of Tet2/Tet3 results in marked alterations of hair shape and length followed by hair loss. We show that, through DNA demethylation, Tet2/Tet3 control chromatin accessibility and Dlx3 binding and promoter activity of the Krt25 and Krt28 genes regulating hair shape, as well as regulate interactions between the Krt28 gene promoter and distal enhancer. Moreover, Tet2/Tet3 also control three-dimensional chromatin topology in Keratin type I/II gene loci via DNA methylation-independent mechanisms. These data demonstrate the essential roles for Tet2/3 in establishment of lineage-specific gene expression program and control of Dlx3/Krt25/Krt28 axis in hair follicle epithelial cells and implicate modulation of DNA methylation as a novel approach for hair growth control.
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Affiliation(s)
- Guo-Dong Chen
- Department of Dermatology, Boston University, Boston, MA, USA
| | - Iqra Fatima
- Department of Dermatology, Boston University, Boston, MA, USA
| | - Qin Xu
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Elena Rozhkova
- Department of Dermatology, Boston University, Boston, MA, USA
| | - Michael Y. Fessing
- Centre for Skin Sciences, School of Chemistry and Biosciences, University of Bradford, Bradford, UK
| | - Andrei N. Mardaryev
- Centre for Skin Sciences, School of Chemistry and Biosciences, University of Bradford, Bradford, UK
| | | | - Guo-Liang Xu
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
- Shanghai Key Laboratory of Medical Epigenetics, Institutes of Biomedical Sciences, Medical College of Fudan University, Shanghai, China
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9
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Xu GL, Liang LF, Chen DY, Jing ZF, Zuo XH, Zuo ZY, Wen F. Primulinajiulianshanensis, a new species of Gesneriaceae from Jiangxi Province, China. PhytoKeys 2023; 226:1-16. [PMID: 37207080 PMCID: PMC10189641 DOI: 10.3897/phytokeys.226.96351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 04/02/2023] [Indexed: 05/21/2023]
Abstract
Primulinajiulianshanensis F.Wen & G.L.Xu, a new species of Gesneriaceae from Jiulianshan National Nature Reserve of Jiangxi Province, China, is described and illustrated here. Molecular evidence showed it was sister to P.wenii Jian Li & L.J.Yan, while the morphological observation found clear differences between them, petiole, both sides of leaf blades, adaxial surface of the calyx lobes, corolla inside toward the bottom, bract margins covered glandular-pubescent hairs in P.jiulianshanensis (vs. no glandular-pubescent hairs in P.wenii); lateral bracts 4-9 × ca. 2 mm, the central one 2-5 × 1-1.5 mm, adaxially glabrous but sparsely pubescent at apex (vs. lateral bracts 14-16 × 2.5-3.0 mm, the central one 10-12 × 1.3-1.6 mm, all adaxially pubescent); calyx lobes 8-11 × ca. 2 mm, each side with several brown serrate teeth at apex (vs. 14-15 × ca. 2.5 mm, margin entire); filaments and staminodes sparsely yellow glandular-puberulent (vs. white, glabrous).
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Affiliation(s)
- Guo-Liang Xu
- Jiulianshan National Nature Reserve Administrative Bureau, Longnan, CN-341700, ChinaJiulianshan National Nature Reserve Administrative BureauLongnanChina
| | - Li-Fen Liang
- Jiangxi Environmental Engineering Vocational College, Ganzhou, CN-341000, ChinaJiangxi Environmental Engineering Vocational CollegeGanzhouChina
| | - Di-Ya Chen
- Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, CN-541006, Guilin, ChinaGesneriad Committee of China Wild Plant Conservation AssociationGuilinChina
- College of Tourism and Landscape Architecture, Guilin University of Technology, Guilin, CN-541006, ChinaGuilin University of TechnologyGuilinChina
| | - Zhi-Fang Jing
- Jiulianshan National Nature Reserve Administrative Bureau, Longnan, CN-341700, ChinaJiulianshan National Nature Reserve Administrative BureauLongnanChina
| | - Xiao-Hai Zuo
- Jiulianshan National Nature Reserve Administrative Bureau, Longnan, CN-341700, ChinaJiulianshan National Nature Reserve Administrative BureauLongnanChina
| | - Zheng-Yu Zuo
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, CN-650201, ChinaGermplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of SciencesKunmingChina
| | - Fang Wen
- Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, CN-541006, Guilin, ChinaGesneriad Committee of China Wild Plant Conservation AssociationGuilinChina
- National Gesneriaceae Germplasm Resources Bank of GXIB, Gesneriad Committee of China Wild Plant Conservation Association, Gesneriad Conservation Center of China (GCCC), Guangxi Institute of Botany, Guilin Botanical Garden, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, CN-541006, Guilin, ChinaGuangxi Institute of Botany, Chinese Academy of SciencesGuilinChina
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10
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Wang L, You X, Ruan D, Shao R, Dai HQ, Shen W, Xu GL, Liu W, Zou W. TET enzymes regulate skeletal development through increasing chromatin accessibility of RUNX2 target genes. Nat Commun 2022; 13:4709. [PMID: 35953487 PMCID: PMC9372040 DOI: 10.1038/s41467-022-32138-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 07/13/2022] [Indexed: 12/03/2022] Open
Abstract
The Ten-eleven translocation (TET) family of dioxygenases mediate cytosine demethylation by catalyzing the oxidation of 5-methylcytosine (5mC). TET-mediated DNA demethylation controls the proper differentiation of embryonic stem cells and TET members display functional redundancy during early gastrulation. However, it is unclear if TET proteins have functional significance in mammalian skeletal development. Here, we report that Tet genes deficiency in mesoderm mesenchymal stem cells results in severe defects of bone development. The existence of any single Tet gene allele can support early bone formation, suggesting a functional redundancy of TET proteins. Integrative analyses of RNA-seq, Whole Genome Bisulfite Sequencing (WGBS), 5hmC-Seal and Assay for Transposase-Accessible Chromatin (ATAC-seq) demonstrate that TET-mediated demethylation increases the chromatin accessibility of target genes by RUNX2 and facilities RUNX2-regulated transcription. In addition, TET proteins interact with RUNX2 through their catalytic domain to regulate cytosine methylation around RUNX2 binding region. The catalytic domain is indispensable for TET enzymes to regulate RUNX2 transcription activity on its target genes and to regulate bone development. These results demonstrate that TET enzymes function to regulate RUNX2 activity and maintain skeletal homeostasis. Here the authors investigate the role of the TET family of DNA demethylases in mammalian skeletal development. They find that loss of TETs leads to hypermethylation that results in decreased chromatin accessibility of RUNX2 target genes, repressing osteoblast differentiation and leading to skeletal defects in mouse such as short limbs.
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Affiliation(s)
- Lijun Wang
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Xiuling You
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, China
| | - Dengfeng Ruan
- Department of Orthopedic Surgery, the Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, 310009, China.,Zhejiang University-University of Edinburgh Institute (ZJU-UoE Institute), Zhejiang University School of Medicine, International Campus, Zhejiang University, 718 East Haizhou Road, Haining, 314400, China
| | - Rui Shao
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Hai-Qiang Dai
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, China
| | - Weiliang Shen
- Department of Orthopedic Surgery, the Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, 310009, China
| | - Guo-Liang Xu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, China
| | - Wanlu Liu
- Department of Orthopedic Surgery, the Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, 310009, China. .,Zhejiang University-University of Edinburgh Institute (ZJU-UoE Institute), Zhejiang University School of Medicine, International Campus, Zhejiang University, 718 East Haizhou Road, Haining, 314400, China.
| | - Weiguo Zou
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China. .,State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, China.
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11
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Liu Y, Xu Z, Shi J, Zhang Y, Yang S, Chen Q, Song C, Geng S, Li Q, Li J, Xu GL, Xie W, Lin H, Li X. DNA methyltransferases are complementary in maintaining DNA methylation in embryonic stem cells. iScience 2022; 25:105003. [PMID: 36117996 PMCID: PMC9478929 DOI: 10.1016/j.isci.2022.105003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/15/2022] [Accepted: 08/18/2022] [Indexed: 12/01/2022] Open
Abstract
ZFP57 and ZFP445 maintain genomic imprinting in mouse embryos. We found DNA methylation was lost at most examined imprinting control regions (ICRs) in mouse Zfp57 mutant ES cells, which could not be prevented by the elimination of three TET proteins. To elucidate methylation maintenance mechanisms, we generated mutant ES clones lacking three major DNA methyltransferases (DNMTs). Intriguingly, DNMT3A and DNMT3B were essential for DNA methylation at a subset of ICRs in mouse ES cells although DNMT1 maintained DNA methylation at most known ICRs. These were similarly observed after extended culture. Germline-derived DNA methylation was lost at the examined ICRs lacking DNMTs according to allelic analysis. Similar to DNMT1, DNMT3A and DNMT3B were required for maintaining DNA methylation at repeats, genic regions, and other genomic sequences. Therefore, three DNA methyltransferases play complementary roles in maintaining DNA methylation in mouse ES cells including DNA methylation at the ICRs primarily mediated through the ZFP57-dependent pathway. ZFP57 maintains DNA methylation at the ICR of most imprinted regions in ES cells TET proteins may not be essential for maintaining most ICR DNA methylation in ES cells DNMT3 is required for the maintenance of DNA methylation at a subset of ICRs in ES cells Maintenance functions of DNMT1 and DNMT3 are complementary at repeats and genic regions
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Affiliation(s)
- Yuhan Liu
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhen Xu
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Jiajia Shi
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Yu Zhang
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai 200032, China
| | - Shuting Yang
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Qian Chen
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Chenglin Song
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Shuhui Geng
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Qing Li
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Jinsong Li
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Guo-Liang Xu
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Wei Xie
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Haodong Lin
- Department of Orthopedic Surgery, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Road, Shanghai 200080, China
| | - Xiajun Li
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
- Genome Editing Center, ShanghaiTech University, Shanghai 201210, China
- Corresponding author
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12
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Zhao YH, Jiang W, Gao H, Pang GZ, Wu YS, Wang YX, Sheng MY, Xie JY, Wu WL, Ji ZJ, Du YR, Zhang L, Wang XQ, Walsh CP, Jiang H, Xu GL, Zhou D. DCK confers sensitivity of DCTD-positive cancer cells to oxidized methylcytidines. Protein Cell 2022. [DOI: 10.1093/procel/pwac028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Ya-Hui Zhao
- Shanghai Key Laboratory of Medical Epigenetics, Laboratory of Cancer Epigenetics, Institutes of Biomedical Sciences , Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai 200032, China
| | - Wei Jiang
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science , Chinese Academy of Sciences, Shanghai 200031, China
| | - Hai Gao
- Shanghai Key Laboratory of Medical Epigenetics, Laboratory of Cancer Epigenetics, Institutes of Biomedical Sciences , Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai 200032, China
- Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University , Shanghai 201399, China
| | - Guo-Zheng Pang
- Shanghai Key Laboratory of Medical Epigenetics, Laboratory of Cancer Epigenetics, Institutes of Biomedical Sciences , Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai 200032, China
| | - Yu-Shuang Wu
- Shanghai Key Laboratory of Medical Epigenetics, Laboratory of Cancer Epigenetics, Institutes of Biomedical Sciences , Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai 200032, China
| | - Yuan-Xian Wang
- Shanghai Key Laboratory of Medical Epigenetics, Laboratory of Cancer Epigenetics, Institutes of Biomedical Sciences , Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai 200032, China
| | - Meng-Yao Sheng
- Shanghai Key Laboratory of Medical Epigenetics, Laboratory of Cancer Epigenetics, Institutes of Biomedical Sciences , Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai 200032, China
| | - Jia-Ying Xie
- Shanghai Key Laboratory of Medical Epigenetics, Laboratory of Cancer Epigenetics, Institutes of Biomedical Sciences , Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai 200032, China
| | - Wan-Ling Wu
- Department of Hematology, Huashan Hospital of Fudan University , Shanghai 200040, China
| | - Zhi-Jian Ji
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science , Chinese Academy of Sciences, Shanghai 200031, China
| | - Ya-Rui Du
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science , Chinese Academy of Sciences, Shanghai 200031, China
| | - Lei Zhang
- Department of Chemistry and Institutes of Biomedical Science, Shanghai Medical College, Fudan University , Shanghai 200032, China
| | - Xiao-Qin Wang
- Department of Hematology, Huashan Hospital of Fudan University , Shanghai 200040, China
| | - Colum P Walsh
- Genomic Medicine Research Group, Biomedical Sciences, Ulster University , Coleraine BT52 1SA, UK
- Centre for Research and Development, Region Gävleborg/Uppsala University , Gävle, Sweden
| | - Hai Jiang
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science , Chinese Academy of Sciences, Shanghai 200031, China
| | - Guo-Liang Xu
- Shanghai Key Laboratory of Medical Epigenetics, Laboratory of Cancer Epigenetics, Institutes of Biomedical Sciences , Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai 200032, China
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science , Chinese Academy of Sciences, Shanghai 200031, China
| | - Dan Zhou
- Shanghai Key Laboratory of Medical Epigenetics, Laboratory of Cancer Epigenetics, Institutes of Biomedical Sciences , Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai 200032, China
- Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University , Shanghai 201399, China
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13
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Lin CX, Xu GL, Jin ZF, Liao WB, Xu KW. Molecular, chromosomal, and morphological evidence reveals a new allotetraploid fern species of Asplenium (Aspleniaceae) from southern Jiangxi, China. PhytoKeys 2022; 199:113-127. [PMID: 36761876 PMCID: PMC9849027 DOI: 10.3897/phytokeys.199.81292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 05/18/2022] [Indexed: 06/18/2023]
Abstract
Aspleniumjiulianshanense, a new tetraploid fern species of the A.normale complex (Aspleniaceae) from Jiulianshan National Nature Reserve, southern Jiangxi, China is described and illustrated. We inferred the phylogenetic position of the new species based on sequences from seven plastid markers (atpB, rbcL, rps4, rps4-trnS, trnL, trnL-F, and trnG) and one low-copy nuclear gene, pgiC. The plastid phylogeny supported a close relationship among the new species A.jiulianshanense, A.minutifolium, and A.kiangsuense, while the nuclear phylogeny differed in topology from the plastid tree. The new species may be due to hybridization between A.kiangsuense and A.boreale. Morphologically, the new species can easily be distinguished from other members of the A.normale complex by rachises bearing a gemma near the apex, pinna margins entire to sparsely crenate, and (1‒)3‒4(‒6) sori per pinna.
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Affiliation(s)
- Chen-Xue Lin
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 510275, China
| | - Guo-Liang Xu
- Jiulianshan National Nature Reserve Administrative Bureau, Longnan, 341700, China
| | - Zhi-Fang Jin
- Jiulianshan National Nature Reserve Administrative Bureau, Longnan, 341700, China
| | - Wen-Bo Liao
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Ke-Wang Xu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 510275, China
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14
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Peng SH, Gong SF, Chen YQ, Yang JC, Zeng WH, Zeng ZJ, Xu GL, Liu XY, Zhu WF, Yao PC. [Effect of Gegen Qinlian Decoction on methylation and expression of Scd1gene in adipose tissue of insulin resistant rats and correlations between methylation and physiological and biochemical parameters]. Zhongguo Zhong Yao Za Zhi 2022; 47:3328-3338. [PMID: 35851127 DOI: 10.19540/j.cnki.cjcmm.20211126.401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This study aimed to explore the effect of Gegen Qinlian Decoction(GQD) on the methylation and mRNA expression level of stearoyl CoA desaturase(SCD) gene in the adipose tissue of rats with insulin resistance(IR) induced by high-fat diet as well as the correlations between methylation and physiological and biochemical indicators. The animals were divided into seven groups, namely, blank control(C) group, IR model group, low-(1.65 g·kg~(-1)), medium-(4.95 g·kg~(-1)), and high(14.85 g·kg~(-1))-dose GQD(GQDL, GQDM, and GQDH) groups, rosiglitazone(RGN, 5 mg·kg~(-1)) group, and simvastatin(SVT, 10 mg·kg~(-1)) group. The rat epididymal adipose tissue was collected for detecting all the cytosine methylation levels in two fragments of Scd1 gene by bisulfite sequencing PCR(BSP). Scd1-1 was located in CG shores and Scd1-2 in CG islands, including the transcriptional start site(TSS). The Scd1 mRNA level was determined by quantitative real-time PCR(q-PCR). Spearman correlation coefficient was used to analyze the correlations between amplified fragment C methylation and physiological and biochemical indicators. The results showed that GQDM remarkably reversed the elevated CG7 methylation in the TSS upstream region of Scd1-2 triggered by high-fat diet. GQDL significantly reversed the lowered total CG methylation in the downstream region of Scd1-2 induced by the high-fat diet. GQD did not significantly improve the decreased Scd1 mRNA expression caused by high-fat diet. Changes in methylation of the total CG, CG5 and CT11 of Scd1-1 in CG shores exhibited significant negative correlations with the serum triglyceride(TG) but positive correlation with the Scd1 mRNA level. The methylation of several C sites in the TSS upstream region of Scd1-2 was positively correlated with physiological and biochemical parameters. The methylation of several CG sites in the TSS downstream region of Scd1-2 was negatively associated with physiological and biochemical parameters. Besides, the methylation of several CH sites in the downstream fragment was positively correlated with physiological and biochemical parameters. All these have demonstrated that GQD may exert the therapeutic effect by regulating the methylation of CG7 in the TSS upstream region and total CG site in the TSS downstream region of Scd1 gene. The methylation of total CG, CG5 and CT11 sites in CG shores of Scd1 gene may be important targets for regulating Scd1 mRNA level and affecting serum TG.
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Affiliation(s)
- Shu-Hong Peng
- Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory,Jiangxi University of Chinese Medicine Nanchang 330004,China Jiangxi Provincial Key Laboratory of Chinese Medicine Etiopathogenisis Nanchang 330004,China
| | - Shu-Fang Gong
- Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory,Jiangxi University of Chinese Medicine Nanchang 330004,China Jiangxi Provincial Key Laboratory of Chinese Medicine Etiopathogenisis Nanchang 330004,China College of Traditional Chinese Medicine,Jiangxi University of Chinese Medicine Nanchang 330004,China
| | - Yong-Qiang Chen
- Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory,Jiangxi University of Chinese Medicine Nanchang 330004,China Jiangxi Provincial Key Laboratory of Chinese Medicine Etiopathogenisis Nanchang 330004,China College of Traditional Chinese Medicine,Jiangxi University of Chinese Medicine Nanchang 330004,China
| | - Jia-Cheng Yang
- College of Pharmacy,Jiangxi University of Chinese Medicine Nanchang 330004,China
| | - Wei-Hong Zeng
- College of Pharmacy,Jiangxi University of Chinese Medicine Nanchang 330004,China
| | - Zhi-Jun Zeng
- Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory,Jiangxi University of Chinese Medicine Nanchang 330004,China Jiangxi Provincial Key Laboratory of Chinese Medicine Etiopathogenisis Nanchang 330004,China
| | - Guo-Liang Xu
- Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory,Jiangxi University of Chinese Medicine Nanchang 330004,China Jiangxi Provincial Key Laboratory of Chinese Medicine Etiopathogenisis Nanchang 330004,China
| | - Xin-Yi Liu
- Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory,Jiangxi University of Chinese Medicine Nanchang 330004,China Jiangxi Provincial Key Laboratory of Chinese Medicine Etiopathogenisis Nanchang 330004,China College of Traditional Chinese Medicine,Jiangxi University of Chinese Medicine Nanchang 330004,China
| | - Wei-Feng Zhu
- Key Laboratory of Modern Preparation of Chinese Medicine,Ministry of Education,Jiangxi University of Chinese Medicine Nanchang 330004,China
| | - Peng-Cheng Yao
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine,Jiangxi University of Chinese Medicine Nanchang 330004,China
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15
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Chen B, Du YR, Zhu H, Sun ML, Wang C, Cheng Y, Pang H, Ding G, Gao J, Tan Y, Tong X, Lv P, Zhou F, Zhan Q, Xu ZM, Wang L, Luo D, Ye Y, Jin L, Zhang S, Zhu Y, Lin X, Wu Y, Jin L, Zhou Y, Yan C, Sheng J, Flatt PR, Xu GL, Huang H. Maternal inheritance of glucose intolerance via oocyte TET3 insufficiency. Nature 2022; 605:761-766. [PMID: 35585240 DOI: 10.1038/s41586-022-04756-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 04/12/2022] [Indexed: 02/05/2023]
Abstract
Diabetes mellitus is prevalent among women of reproductive age, and many women are left undiagnosed or untreated1. Gestational diabetes has profound and enduring effects on the long-term health of the offspring2,3. However, the link between pregestational diabetes and disease risk into adulthood in the next generation has not been sufficiently investigated. Here we show that pregestational hyperglycaemia renders the offspring more vulnerable to glucose intolerance. The expression of TET3 dioxygenase, responsible for 5-methylcytosine oxidation and DNA demethylation in the zygote4, is reduced in oocytes from a mouse model of hyperglycaemia (HG mice) and humans with diabetes. Insufficient demethylation by oocyte TET3 contributes to hypermethylation at the paternal alleles of several insulin secretion genes, including the glucokinase gene (Gck), that persists from zygote to adult, promoting impaired glucose homeostasis largely owing to the defect in glucose-stimulated insulin secretion. Consistent with these findings, mouse progenies derived from the oocytes of maternal heterozygous and homozygous Tet3 deletion display glucose intolerance and epigenetic abnormalities similar to those from the oocytes of HG mice. Moreover, the expression of exogenous Tet3 mRNA in oocytes from HG mice ameliorates the maternal effect in offspring. Thus, our observations suggest an environment-sensitive window in oocyte development that confers predisposition to glucose intolerance in the next generation through TET3 insufficiency rather than through a direct perturbation of the oocyte epigenome. This finding suggests a potential benefit of pre-conception interventions in mothers to protect the health of offspring.
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Affiliation(s)
- Bin Chen
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, China.,State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Ya-Rui Du
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Hong Zhu
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China.,Research Units of Embryo Original Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Mei-Ling Sun
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Chao Wang
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yi Cheng
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China.,Research Units of Embryo Original Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Haiyan Pang
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Guolian Ding
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China.,Research Units of Embryo Original Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Juan Gao
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Yajing Tan
- Shanghai Key Laboratory of Embryo Original Diseases, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaomei Tong
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, China
| | - Pingping Lv
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Feng Zhou
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, China
| | - Qitao Zhan
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhi-Mei Xu
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Li Wang
- Shanghai Key Laboratory of Embryo Original Diseases, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Donghao Luo
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, China
| | - Yinghui Ye
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Li Jin
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China.,Research Units of Embryo Original Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Songying Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, China
| | - Yimin Zhu
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaona Lin
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, China
| | - Yanting Wu
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China.,Research Units of Embryo Original Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Luyang Jin
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yin Zhou
- Center for Reproductive Medicine, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Caochong Yan
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianzhong Sheng
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Peter R Flatt
- Centre for Diabetes Research, School of Biomedical Sciences, Ulster University, Coleraine, UK
| | - Guo-Liang Xu
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China. .,Shanghai Key Laboratory of Medical Epigenetics, Laboratory of Cancer Epigenetics, Institutes of Biomedical Sciences, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai, China.
| | - Hefeng Huang
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China. .,Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China. .,Research Units of Embryo Original Diseases, Chinese Academy of Medical Sciences, Shanghai, China. .,Shanghai Key Laboratory of Embryo Original Diseases, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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16
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An J, Yin M, Yin J, Wu S, Selby CP, Yang Y, Sancar A, Xu GL, Qian M, Hu J. Genome-wide analysis of 8-oxo-7,8-dihydro-2'-deoxyguanosine at single-nucleotide resolution unveils reduced occurrence of oxidative damage at G-quadruplex sites. Nucleic Acids Res 2021; 49:12252-12267. [PMID: 34788860 PMCID: PMC8643665 DOI: 10.1093/nar/gkab1022] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/28/2021] [Accepted: 10/13/2021] [Indexed: 02/06/2023] Open
Abstract
8-Oxo-7,8-dihydro-2′-deoxyguanosine (OG), one of the most common oxidative DNA damages, causes genome instability and is associated with cancer, neurological diseases and aging. In addition, OG and its repair intermediates can regulate gene transcription, and thus play a role in sensing cellular oxidative stress. However, the lack of methods to precisely map OG has hindered the study of its biological roles. Here, we developed a single-nucleotide resolution OG-sequencing method, named CLAPS-seq (Chemical Labeling And Polymerase Stalling Sequencing), to measure the genome-wide distribution of both exogenous and endogenous OGs with high specificity. Our data identified decreased OG occurrence at G-quadruplexes (G4s), in association with underrepresentation of OGs in promoters which have high GC content. Furthermore, we discovered that potential quadruplex sequences (PQSs) were hotspots of OGs, implying a role of non-G4-PQSs in OG-mediated oxidative stress response.
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Affiliation(s)
- Jiao An
- Shanghai Fifth People's Hospital, Fudan University, and Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Mengdie Yin
- Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Jiayong Yin
- Institute of Pediatrics and Department of Hematology and Oncology, Children's Hospital of Fudan University, and Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Sizhong Wu
- Shanghai Fifth People's Hospital, Fudan University, and Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Christopher P Selby
- Department of Biochemistry and Biophysics, School of Medicine, University of North Carolina, Chapel Hill, NC 27599-7260, USA
| | - Yanyan Yang
- Department of Biochemistry and Biophysics, School of Medicine, University of North Carolina, Chapel Hill, NC 27599-7260, USA
| | - Aziz Sancar
- Department of Biochemistry and Biophysics, School of Medicine, University of North Carolina, Chapel Hill, NC 27599-7260, USA
| | - Guo-Liang Xu
- Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Maoxiang Qian
- Institute of Pediatrics and Department of Hematology and Oncology, Children's Hospital of Fudan University, and Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Jinchuan Hu
- Shanghai Fifth People's Hospital, Fudan University, and Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
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17
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Tao H, Xu W, Qu W, Gao H, Zhang J, Cheng X, Liu N, Chen J, Xu GL, Li X, Shu Q. Loss of ten-eleven translocation 2 induces cardiac hypertrophy and fibrosis through modulating ERK signaling pathway. Hum Mol Genet 2021; 30:865-879. [PMID: 33791790 DOI: 10.1093/hmg/ddab046] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 01/04/2021] [Accepted: 01/29/2021] [Indexed: 01/25/2023] Open
Abstract
The ten-eleven translocation (Tet) family of dioxygenases convert 5-methylcytosine to 5-hydroxymethylcytosine (5hmC). Previous studies have shown that 5hmC-mediated epigenetic modifications play essential roles in diverse biological processes and diseases. Here, we show that Tet proteins and 5hmC display dynamic features during postnatal cardiac development and that Tet2 is the predominant dioxygenase present in heart. Tet2 knockout results in abnormal cardiac function, progressive cardiac hypertrophy and fibrosis. Mechanistically, Tet2 deficiency leads to reduced hydroxymethylation in the cardiac genome and alters the cardiac transcriptome. Mechanistically, Tet2 loss leads to a decrease of Hspa1b expression, a regulator of the extracellular signal-regulated protein kinase (Erk) signaling pathway, which leads to over-activation of Erk signaling. Acute Hspa1b knock down (KD) increased the phosphorylation of Erk and induced hypertrophy of cardiomyocytes, which could be blocked by Erk signaling inhibitor. Consistently, ectopic expression of Hspa1b was able to rescue the deficits of cardiomyocytes induced by Tet2 depletion. Taken together, our study's results reveal the important roles of Tet2-mediated DNA hydroxymethylation in cardiac development and function.
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Affiliation(s)
- Huikang Tao
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou 310052, China.,The Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou 310029, China.,National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Weize Xu
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou 310052, China.,National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Wenzheng Qu
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou 310052, China.,The Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou 310029, China.,National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Hui Gao
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou 310052, China.,National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Jinyu Zhang
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou 310052, China.,The Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou 310029, China.,National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Xuejun Cheng
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou 310052, China.,National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Ning Liu
- The Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou 310029, China
| | - Jinghai Chen
- The Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou 310029, China
| | - Guo-Liang Xu
- Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China.,Laboratory of Medical Epigenetics, Institute of Biomedical Sciences, Medical College of Fudan University, Chinese Academy of Medical Sciences (RU069), Shanghai 200032, China
| | - Xuekun Li
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou 310052, China.,The Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou 310029, China.,National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Qiang Shu
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou 310052, China.,National Clinical Research Center for Child Health, Hangzhou 310052, China
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18
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Zhang CH, Sheng JQ, Xie WH, Luo XQ, Xue YN, Xu GL, Chen C. Mechanism and Basis of Traditional Chinese Medicine Against Obesity: Prevention and Treatment Strategies. Front Pharmacol 2021; 12:615895. [PMID: 33762940 PMCID: PMC7982543 DOI: 10.3389/fphar.2021.615895] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 01/26/2021] [Indexed: 12/13/2022] Open
Abstract
In the last few decades, the incidences of obesity and related metabolic disorders worldwide have increased dramatically. Major pathophysiology of obesity is termed "lipotoxicity" in modern western medicine (MWM) or "dampness-heat" in traditional Chinese medicine (TCM). "Dampness-heat" is a very common and critically important syndrome to guild clinical treatment in TCM. However, the pathogenesis of obesity in TCM is not fully clarified, especially by MWM theories compared to TCM. In this review, the mechanism underlying the action of TCM in the treatment of obesity and related metabolic disorders was thoroughly discussed, and prevention and treatment strategies were proposed accordingly. Hypoxia and inflammation caused by lipotoxicity exist in obesity and are key pathophysiological characteristics of "dampness-heat" syndrome in TCM. "Dampness-heat" is prevalent in chronic low-grade systemic inflammation, prone to insulin resistance (IR), and causes variant metabolic disorders. In particular, the MWM theories of hypoxia and inflammation were applied to explain the "dampness-heat" syndrome of TCM, and we summarized and proposed the pathological path of obesity: lipotoxicity, hypoxia or chronic low-grade inflammation, IR, and metabolic disorders. This provides significant enrichment to the scientific connotation of TCM theories and promotes the modernization of TCM.
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Affiliation(s)
- Chang-Hua Zhang
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Jun-Qing Sheng
- College of Life Science, Nanchang University, Nanchang, China
| | - Wei-Hua Xie
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Xiao-Quan Luo
- Experimental Animal Science and Technology Center of TCM, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Ya-Nan Xue
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Guo-Liang Xu
- Research Center for Differentiation and Development of Basic Theory of TCM, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Chen Chen
- School of Biomedical Sciences, University of Queensland, Brisbane, QLD, Australia
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19
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Chen YQ, Gong SF, Huang X, Zeng ZJ, Xu GL, Peng SH, Zhu WF. [Preliminary study on effect of Gegen Qinlian Decoction on enzyme activity, gene expression and methylation level of FASN in adipose tissue of rats with insulin resistance]. Zhongguo Zhong Yao Za Zhi 2021; 46:398-405. [PMID: 33645128 DOI: 10.19540/j.cnki.cjcmm.20200901.401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
To investigate the effect of Gegen Qinlian Decoction(GQD) on enzyme activity, gene expression and methylation level of fatty acid synthase(FASN) in adipose tissue from rats with insulin resistance induced by high-fat diet. The 60% fat-powered high-fat diet was continuously given to male SD rats to induce the insulin resistance model. Then, they were divided into five groups randomly and administrated by gavage every day for 16 weeks with following drugs respectively: 10 mL·kg~(-1)water for control group(C) and insulin resistance model control group(IR), 1.65 g·kg~(-1)GQD per day for low-dose group(GQDL), 4.95 g·kg~(-1)GQD per day for medium-dose group(GQDM), 14.85 g·kg~(-1)GQD per day for high-dose group(GQDH), and 5 mg·kg~(-1) rosiglitazone per day for rosiglitazone group(RGN). Epididymal adipose tissue was taken to determine enzyme activity of FASN by colorimetric method, mRNA expression level of Fasn by quantitative Real-time PCR(Q-PCR) and CpGs methylation level between +313 and +582 by bisulfite sequencing PCR(BSP). These results showed that Fasn expression was significantly lowered in IR model rats compared with the control rats(P<0.01). Enzymatic activity and CpGs methylation level of Fasn in IR group showed downward trends. Low and medium-dose GQD can increase enzyme activity of FASN(P<0.05). Moreover, low-dose GQD increased the total CpGs methylation level of Fasn fragment between +313 and +582 in insulin resistance rats(P<0.05). For GQDM group, the methylation frequency of CpGs at positions +506 and +508(P<0.01) as well as the methylation frequency of CpGs on the binding sites of transcription factorzinc finger protein 161(P<0.05) were significantly increased. The methylation frequency of CpG at +442 position was positively correlated with Fasn expression(P<0.01, r=0.735), and methylation frequencies of CpGs at +345 and +366 positions were positively associated to enzyme activity of FASN respectively(P<0.05, r=0.479; P<0.01, r=0.640). In conclusion, GQD can reverse enzyme activity of FASN and methylation level of Fasn in adipose tissue of insulin resistant rats, and CpG sites at positions +506 and +508 may be the targets of GQD. The methylation level of CpGs at + 345 and + 366 sites were possibly related to FASN activity, while methylation of CpG at + 442 site may be closely correlated with mRNA level of Fasn. In addition, GQD did not significantly change mRNA expression level of Fasn, but effectively reversed enzymatic activity, suggesting that GQD may regulate the post transcriptional expression of Fasn.
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Affiliation(s)
- Yong-Qiang Chen
- Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory,Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China Jiangxi Province Key Laboratory of Traditional Chinese Medicine Etiopathogenisis Nanchang 330004, China College of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China
| | - Shu-Fang Gong
- Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory,Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China Jiangxi Province Key Laboratory of Traditional Chinese Medicine Etiopathogenisis Nanchang 330004, China College of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China
| | - Xin Huang
- College of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China
| | - Zhi-Jun Zeng
- Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory,Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China Jiangxi Province Key Laboratory of Traditional Chinese Medicine Etiopathogenisis Nanchang 330004, China
| | - Guo-Liang Xu
- Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory,Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China Jiangxi Province Key Laboratory of Traditional Chinese Medicine Etiopathogenisis Nanchang 330004, China
| | - Shu-Hong Peng
- Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory,Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China Jiangxi Province Key Laboratory of Traditional Chinese Medicine Etiopathogenisis Nanchang 330004, China
| | - Wei-Feng Zhu
- Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China
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Li W, Zhang T, Sun M, Shi Y, Zhang XJ, Xu GL, Ding J. Molecular mechanism for vitamin C-derived C 5-glyceryl-methylcytosine DNA modification catalyzed by algal TET homologue CMD1. Nat Commun 2021; 12:744. [PMID: 33531488 PMCID: PMC7854593 DOI: 10.1038/s41467-021-21061-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 01/11/2021] [Indexed: 01/07/2023] Open
Abstract
C5-glyceryl-methylcytosine (5gmC) is a novel DNA modification catalyzed by algal TET homologue CMD1 using vitamin C (VC) as co-substrate. Here, we report the structures of CMD1 in apo form and in complexes with VC or/and dsDNA. CMD1 exhibits comparable binding affinities for DNAs of different lengths, structures, and 5mC levels, and displays a moderate substrate preference for 5mCpG-containing DNA. CMD1 adopts the typical DSBH fold of Fe2+/2-OG-dependent dioxygenases. The lactone form of VC binds to the active site and mono-coordinates the Fe2+ in a manner different from 2-OG. The dsDNA binds to a positively charged cleft of CMD1 and the 5mC/C is inserted into the active site and recognized by CMD1 in a similar manner as the TET proteins. The functions of key residues are validated by mutagenesis and activity assay. Our structural and biochemical data together reveal the molecular mechanism for the VC-derived 5gmC DNA modification by CMD1.
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Affiliation(s)
- Wenjing Li
- grid.410726.60000 0004 1797 8419State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Tianlong Zhang
- grid.410726.60000 0004 1797 8419State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Mingliang Sun
- grid.410726.60000 0004 1797 8419State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Yu Shi
- grid.410726.60000 0004 1797 8419State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China ,grid.440637.20000 0004 4657 8879School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Xiao-Jie Zhang
- grid.410726.60000 0004 1797 8419State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Guo-Liang Xu
- grid.410726.60000 0004 1797 8419State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Jianping Ding
- grid.410726.60000 0004 1797 8419State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China ,grid.440637.20000 0004 4657 8879School of Life Science and Technology, ShanghaiTech University, Shanghai, China ,grid.410726.60000 0004 1797 8419School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
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21
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Liu X, Lai W, Li Y, Chen S, Liu B, Zhang N, Mo J, Lyu C, Zheng J, Du YR, Jiang G, Xu GL, Wang H. N 6-methyladenine is incorporated into mammalian genome by DNA polymerase. Cell Res 2021; 31:94-97. [PMID: 32355286 PMCID: PMC7853133 DOI: 10.1038/s41422-020-0317-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 04/04/2020] [Indexed: 11/09/2022] Open
Affiliation(s)
- Xiaoling Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Weiyi Lai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Yao Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shaokun Chen
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Baodong Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Ning Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Jiezhen Mo
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Cong Lyu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jing Zheng
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ya-Rui Du
- State Key Laboratory of Molecular Biology, Center for Excellence in Molecular Cell Science/Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Guo-Liang Xu
- State Key Laboratory of Molecular Biology, Center for Excellence in Molecular Cell Science/Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Hailin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- Institute of Environment and Health, Jianghan University, Wuhan, Hubei, 430056, China.
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22
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Chi J, Lian SS, Yang Q, Luo GY, Xu GL. The utility of EBUS-TBNA in the diagnosis of suspected intrathoracic recurrence after esophageal cancer surgery. Jpn J Clin Oncol 2020; 50:602-608. [PMID: 31943047 DOI: 10.1093/jjco/hyz212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 11/18/2019] [Accepted: 12/23/2019] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVES Postoperative recurrences, especially anastomotic recurrence and regional lymph node recurrence were common in patients even with curative esophageal cancer surgery. Endobronchial ultrasound-guided transbronchial needle aspiration is an alternative to mediastinoscopy in patients with lung cancer and mediastinal lymphadenopathy. The aim of our study is to evaluate the utility of endobronchial ultrasound-guided transbronchial needle aspiration in postoperative patients suffered from esophageal malignancy. METHODS All endobronchial ultrasound-guided transbronchial needle aspiration cases performed between August 2015 and December 2018 in our center were all retrospective reviewed. The patients with enlarged mediastinal lymph node and/or unknown intrathoracic mass after esophageal cancer surgery were enrolled. Final diagnoses were determined by the result of endobronchial ultrasound-guided transbronchial needle aspiration, second surgery and/or clinical follow-up for at least 6 months. RESULTS Overall 29 patients were included in the analysis with 30 lesions sampled. No endobronchial ultrasound-guided transbronchial needle aspiration related complications were observed. In total, 22 of these (73.3%) had a diagnosis of tumor recurrence, whereas eight (26.7%) had a different diagnosis: two (6.7%) had a second primary malignancy and three (10.0%) had non-neoplastic diagnosis. Cases were false-negative in 3 (10.0%) out of 30 lesions. The overall sensitivity, negative predicted value and diagnostic accuracy were 88.9, 50.0 and 90.0%, respectively. CONCLUSIONS Given its safety, low invasiveness, high sensitivity and diagnostic accuracy, endobronchial ultrasound-guided transbronchial needle aspiration could be considered for mediastinal lymphadenopathy and intrathoracic masses of unknown origin in patients after radical esophageal cancer resection, and its strategic role in the management of these patients was confirmed.
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Affiliation(s)
- Jun Chi
- Department of Endoscopy, Sun Yat-Sen University Cancer Center Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Guangzhou, Guangdong, China
| | - Shan-Shan Lian
- Department of Radiology, Sun Yat-Sen University Cancer Center Guangzhou, Guangdong, China, and.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Guangzhou, Guangdong, China
| | - Qing Yang
- Department of Endoscopy, Sun Yat-Sen University Cancer Center Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Guangzhou, Guangdong, China
| | - Guang-Yu Luo
- Department of Endoscopy, Sun Yat-Sen University Cancer Center Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Guangzhou, Guangdong, China
| | - Guo-Liang Xu
- Department of Endoscopy, Sun Yat-Sen University Cancer Center Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Guangzhou, Guangdong, China
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23
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Zhang M, Lai Y, Krupalnik V, Guo P, Guo X, Zhou J, Xu Y, Yu Z, Liu L, Jiang A, Li W, Abdul MM, Ma G, Li N, Fu X, Lv Y, Jiang M, Tariq M, Kanwal S, Liu H, Xu X, Zhang H, Huang Y, Wang L, Chen S, Babarinde IA, Luo Z, Wang D, Zhou T, Ward C, He M, Ibañez DP, Li Y, Zhou J, Yuan J, Feng Y, Arumugam K, Di Vicino U, Bao X, Wu G, Schambach A, Wang H, Sun H, Gao F, Qin B, Hutchins AP, Doble BW, Hartmann C, Cosma MP, Qin Y, Xu GL, Chen R, Volpe G, Chen L, Hanna JH, Esteban MA. β-Catenin safeguards the ground state of mousepluripotency by strengthening the robustness of the transcriptional apparatus. Sci Adv 2020; 6:eaba1593. [PMID: 32832621 PMCID: PMC7439582 DOI: 10.1126/sciadv.aba1593] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 06/05/2020] [Indexed: 05/12/2023]
Abstract
Mouse embryonic stem cells cultured with MEK (mitogen-activated protein kinase kinase) and GSK3 (glycogen synthase kinase 3) inhibitors (2i) more closely resemble the inner cell mass of preimplantation blastocysts than those cultured with SL [serum/leukemia inhibitory factor (LIF)]. The transcriptional mechanisms governing this pluripotent ground state are unresolved. Release of promoter-proximal paused RNA polymerase II (Pol2) is a multistep process necessary for pluripotency and cell cycle gene transcription in SL. We show that β-catenin, stabilized by GSK3 inhibition in medium with 2i, supplies transcriptional coregulators at pluripotency loci. This selectively strengthens pluripotency loci and renders them addicted to transcription initiation for productive gene body elongation in detriment to Pol2 pause release. By contrast, cell cycle genes are not bound by β-catenin, and proliferation/self-renewal remains tightly controlled by Pol2 pause release under 2i conditions. Our findings explain how pluripotency is reinforced in the ground state and also provide a general model for transcriptional resilience/adaptation upon network perturbation in other contexts.
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Affiliation(s)
- Meng Zhang
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Yiwei Lai
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Vladislav Krupalnik
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Pengcheng Guo
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xiangpeng Guo
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Jianguo Zhou
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Yan Xu
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Zhijun Yu
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Longqi Liu
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Ao Jiang
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Wenjuan Li
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
- Guangzhou Medical University, Guangzhou 511436, China
| | - Mazid Md. Abdul
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Gang Ma
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Na Li
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Xiuling Fu
- Department of Biology, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yuan Lv
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Mengling Jiang
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Muqddas Tariq
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Shahzina Kanwal
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Hao Liu
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Xueting Xu
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Hui Zhang
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Yinghua Huang
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Lulu Wang
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Shuhan Chen
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Isaac A. Babarinde
- Department of Biology, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhiwei Luo
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
- Guangzhou Medical University, Guangzhou 511436, China
| | - Dongye Wang
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Tiantian Zhou
- State Key Laboratory of Molecular Biology, Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Carl Ward
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Minghui He
- Forevergen Biosciences Center, Guangzhou 510000, China
| | - David P. Ibañez
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Yunpan Li
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Jiajian Zhou
- Department of Chemical Pathology, Li Ka Shing Institute of Health Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jie Yuan
- Department of Chemical Pathology, Li Ka Shing Institute of Health Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yayan Feng
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Karthik Arumugam
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona 08003, Spain
- Universitat Pompeu Fabra (UPF), Barcelona 08003, Spain
| | - Umberto Di Vicino
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona 08003, Spain
- Universitat Pompeu Fabra (UPF), Barcelona 08003, Spain
| | - Xichen Bao
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
| | - Guangming Wu
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
| | - Axel Schambach
- Hannover Medical School, Institute of Experimental Hematology, Hannover 30625, Germany
- Division of Hematology and Oncology, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - Huating Wang
- Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Hao Sun
- Department of Chemical Pathology, Li Ka Shing Institute of Health Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Fei Gao
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- Comparative Pediatrics and Nutrition, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg DK1870C, Denmark
| | - Baoming Qin
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
- Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Andrew P. Hutchins
- Department of Biology, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bradley W. Doble
- Departments of Pediatrics and Child Health and Biochemistry and Medical Genetics, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0W2, Canada
| | - Christine Hartmann
- Department of Bone and Skeletal Research, Institute of Musculoskeletal Medicine, Medical Faculty of the University of Münster, Münster D-48149, Germany
| | - Maria Pia Cosma
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona 08003, Spain
- Universitat Pompeu Fabra (UPF), Barcelona 08003, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona 08003, Spain
| | - Yan Qin
- University of Chinese Academy of Sciences, Beijing 100049, China
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Guo-Liang Xu
- State Key Laboratory of Molecular Biology, Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- Laboratory of Metabolism and Epigenetics, Institutes of Biomedical Sciences, Medical College of Fudan University, Shanghai 200032, China
| | - Runsheng Chen
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Giacomo Volpe
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
| | - Liang Chen
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan 430072, China
- Corresponding author. (M.A.E.); (J.H.H.); (L.C.)
| | - Jacob H. Hanna
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 7610001, Israel
- Corresponding author. (M.A.E.); (J.H.H.); (L.C.)
| | - Miguel A. Esteban
- Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, China
- Joint School of Life Sciences, Guangzhou Medical University and Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 511436, China
- Institute of Stem Cells and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
- Corresponding author. (M.A.E.); (J.H.H.); (L.C.)
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Xu H, Xu GL, Li XD, Su QH, Dong CZ. Correlation between the contrast-enhanced ultrasound image features and axillary lymph node metastasis of primary breast cancer and its diagnostic value. Clin Transl Oncol 2020; 23:155-163. [PMID: 32488804 DOI: 10.1007/s12094-020-02407-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 05/20/2020] [Indexed: 12/29/2022]
Abstract
PURPOSE To analyze the correlation between contrast-enhanced ultrasound image features and axillary lymph node metastasis of primary breast cancer and its diagnostic value. METHODS In this study, 64 patients with axillary lymph node metastasis of primary breast cancer diagnosed and treated in our hospital from February 2011 to March 2013 were collected as an observation group, and 54 patients without axillary lymph node metastasis were collected as a control group. All patients underwent a contrast-enhanced ultrasound examination, and the correlation between the contrast-enhanced ultrasound image features and axillary lymph node metastasis and its diagnostic value were analyzed. They were divided into two groups according to their survival conditions: the group with good efficacy and group with poor efficacy, and the prognostic factors of breast cancer in the two groups were analyzed. RESULTS There were statistical differences in the peripheral acoustic halo, blood flow classification, ratio of length to diameter (L/D), maximum cortical thickness, and enhancement mode of lymph nodes between the two groups (p < 0.05). The area under ROC curve for diagnosis of axillary lymph node metastasis by contrast-enhanced ultrasound was 0.854, sensitivity was 83.33%, and specificity was 87.5%; L/D and enhancement mode were independent prognostic factors for breast cancer. CONCLUSIONS Contrast-enhanced ultrasound image features have diagnostic and prognostic value for axillary lymph node metastasis of breast cancer.
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Affiliation(s)
- H Xu
- Department of Echocardiography, The First Hospital of Jilin University, Changchun, 130021, People's Republic of China
| | - G L Xu
- Department of Cardiovascular Medicine, The Eastern Division of The First Hospital of Jilin University, Changchun,, 130031, People's Republic of China
| | - X D Li
- Department of Echocardiography, The First Hospital of Jilin University, Changchun, 130021, People's Republic of China
| | - Q H Su
- Department of Echocardiography, The First Hospital of Jilin University, Changchun, 130021, People's Republic of China
| | - C Z Dong
- Department of Abdominal Ultrasound, The First Hospital of Jilin University, No. 71 Xinmin Street, Changchun, 130021, People's Republic of China.
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25
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Rao VK, Swarnaseetha A, Tham GH, Lin WQ, Han BB, Benoukraf T, Xu GL, Ong CT. Phosphorylation of Tet3 by cdk5 is critical for robust activation of BRN2 during neuronal differentiation. Nucleic Acids Res 2020; 48:1225-1238. [PMID: 31807777 PMCID: PMC7026633 DOI: 10.1093/nar/gkz1144] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 11/20/2019] [Accepted: 11/27/2019] [Indexed: 12/27/2022] Open
Abstract
Tet3 regulates the dynamic balance between 5-methylcyotsine (5mC) and 5-hydroxymethylcytosine (5hmC) in DNA during brain development and homeostasis. However, it remains unclear how its functions are modulated in a context-dependent manner during neuronal differentiation. Here, we show that cyclin-dependent kinase 5 (cdk5) phosphorylates Tet3 at the highly conserved serine 1310 and 1379 residues within its catalytic domain, changing its in vitro dioxygenase activity. Interestingly, when stably expressed in Tet1, 2, 3 triple-knockout mouse embryonic stem cells (ESCs), wild-type Tet3 induces higher level of 5hmC and concomitant expression of genes associated with neurogenesis whereas phosphor-mutant (S1310A/S1379A) Tet3 causes elevated 5hmC and expression of genes that are linked to metabolic processes. Consistent with this observation, Tet3-knockout mouse ESCs rescued with wild-type Tet3 have higher level of 5hmC at the promoter of neuron-specific gene BRN2 when compared to cells that expressed phosphor-mutant Tet3. Wild-type and phosphor-mutant Tet3 also exhibit differential binding affinity to histone variant H2A.Z. The differential 5hmC enrichment and H2A.Z occupancy at BRN2 promoter is correlated with higher gene expression and more efficient neuronal differentiation of ESCs that expressed wild-type Tet3. Taken together, our results suggest that cdk5-mediated phosphorylation of Tet3 is required for robust activation of neuronal differentiation program.
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Affiliation(s)
- Vinay Kumar Rao
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore 117604, Singapore
| | - Adusumalli Swarnaseetha
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore 117604, Singapore.,Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore
| | - Guo-Hong Tham
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore 117604, Singapore
| | - Wei-Qi Lin
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore 117604, Singapore
| | - Bin-Bin Han
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Touati Benoukraf
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore.,Discipline of Genetics, Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL A1B 3V6, Canada
| | - Guo-Liang Xu
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Chin-Tong Ong
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore 117604, Singapore.,Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore
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26
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Gong T, Gu X, Liu YT, Zhou Z, Zhang LL, Wen Y, Zhong WL, Xu GL, Zhou JQ. Both combinatorial K4me0-K36me3 marks on sister histone H3s of a nucleosome are required for Dnmt3a-Dnmt3L mediated de novo DNA methylation. J Genet Genomics 2020; 47:105-114. [PMID: 32173286 DOI: 10.1016/j.jgg.2019.12.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 12/18/2019] [Accepted: 12/30/2019] [Indexed: 11/28/2022]
Abstract
A nucleosome contains two copies of each histone H2A, H2B, H3 and H4. Histone H3 K4me0 and K36me3 are two key chromatin marks for de novo DNA methylation catalyzed by DNA methyltransferases in mammals. However, it remains unclear whether K4me0 and K36me3 marks on both sister histone H3s regulate de novo DNA methylation independently or cooperatively. Here, taking advantage of the bivalent histone H3 system in yeast, we examined the contributions of K4 and K36 on sister histone H3s to genomic DNA methylation catalyzed by ectopically co-expressed murine Dnmt3a and Dnmt3L. The results show that lack of both K4me0 and K36me3 on one sister H3 tail, or lack of K4me0 and K36me3 on respective sister H3s results in a dramatic reduction of 5mC, revealing a synergy of two sister H3s in DNA methylation regulation. Accordingly, the Dnmt3a or Dnmt3L mutation that disrupts the interaction of Dnmt3aADD domain-H3K4me0, Dnmt3LADD domain-H3K4me0, or Dnmt3aPWWP domain-H3K36me3 causes a significant reduction of DNA methylation. These results support the model that each heterodimeric Dnmt3a-Dnmt3L reads both K4me0 and K36me3 marks on one tail of sister H3s, and the dimer of heterodimeric Dnmt3a-Dnmt3L recognizes two tails of sister histone H3s to efficiently execute de novo DNA methylation.
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Affiliation(s)
- Ting Gong
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Xin Gu
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yu-Ting Liu
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Zhen Zhou
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Ling-Li Zhang
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yang Wen
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Wei-Li Zhong
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Guo-Liang Xu
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Jin-Qiu Zhou
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China; School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China.
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27
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Huang G, Liu L, Wang H, Gou M, Gong P, Tian C, Deng W, Yang J, Zhou TT, Xu GL, Liu L. Tet1 Deficiency Leads to Premature Reproductive Aging by Reducing Spermatogonia Stem Cells and Germ Cell Differentiation. iScience 2020; 23:100908. [PMID: 32114381 PMCID: PMC7049665 DOI: 10.1016/j.isci.2020.100908] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/08/2019] [Accepted: 02/07/2020] [Indexed: 12/17/2022] Open
Abstract
Ten-eleven translocation (Tet) enzymes are involved in DNA demethylation, important in regulating embryo development, stem cell pluripotency and tumorigenesis. Alterations of DNA methylation with age have been shown in various somatic cell types. We investigated whether Tet1 and Tet2 regulate aging. We showed that Tet1-deficient mice undergo a progressive reduction of spermatogonia stem cells and spermatogenesis and thus accelerated infertility with age. Tet1 deficiency decreases 5hmC levels in spermatogonia and downregulates a subset of genes important for cell cycle, germ cell differentiation, meiosis and reproduction, such as Ccna1 and Spo11, resulting in premature reproductive aging. Moreover, Tet1 and 5hmC both regulate signaling pathways key for stem cell development, including Wnt and PI3K-Akt, autophagy and stress response genes. In contrast, effect of Tet2 deficiency on male reproductive aging is minor. Hence, Tet1 maintains spermatogonia stem cells with age, revealing an important role of Tet1 in regulating stem cell aging. Tet1 regulates stem cell aging and differentiation Tet1 plays an important role in maintaining spermatogonial stem cells Loss of Tet1 results in exhaustion of spermatogonia and premature reproductive aging Effect of Tet2 deficiency on reproductive aging in males is minor
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Affiliation(s)
- Guian Huang
- Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Linlin Liu
- Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Huasong Wang
- Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Mo Gou
- Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Peng Gong
- Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Chenglei Tian
- Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Wei Deng
- Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Jiao Yang
- Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Tian-Tian Zhou
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Guo-Liang Xu
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China.
| | - Lin Liu
- Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China.
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Weng NQ, Chi J, Wen J, Mai SJ, Zhang MY, Huang L, Liu J, Yang XZ, Xu GL, Fu JH, Wang HY. The prognostic value of a seven-lncRNA signature in patients with esophageal squamous cell carcinoma: a lncRNA expression analysis. J Transl Med 2020; 18:47. [PMID: 32005248 PMCID: PMC6995134 DOI: 10.1186/s12967-020-02224-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 01/10/2020] [Indexed: 12/15/2022] Open
Abstract
Background Long non-coding RNAs (lncRNAs) have been reported to be prognostic biomarkers in many types of cancer. We aimed to identify a lncRNA signature that can predict the prognosis in patients with esophageal squamous cell carcinoma (ESCC). Methods Using a custom microarray, we retrospectively analyzed lncRNA expression profiles in 141 samples of ESCC and 81 paired non-cancer specimens from Sun Yat-Sen University Cancer Center (Guangzhou, China), which were used as a training cohort to identify a signature associated with clinical outcomes. Then we conducted quantitative RT-PCR in another 103 samples of ESCC from the same cancer center as an independent cohort to verify the signature. Results Microarray analysis showed that there were 338 lncRNAs significantly differentially expressed between ESCC and non-cancer esophagus tissues in the training cohort. From these differentially expressed lncRNAs, we found 16 lncRNAs associated with overall survival (OS) of ESCC patients using Cox regression analysis. Then a 7-lncRNA signature for predicting survival was identified from the 16 lncRNAs, which classified ESCC patients into high-risk and low-risk groups. Patients with high-risk have shorter OS (HR: 3.555, 95% CI 2.195–5.757, p < 0.001) and disease-free survival (DFS) (HR: 2.537, 95% CI 1.646–3.909, p < 0.001) when compared with patients with low-risk in the training cohort. In the independent cohort, the 7 lncRNAs were detected by qRT-PCR and used to compute risk score for the patients. The result indicates that patients with high risk also have significantly worse OS (HR = 2.662, 95% CI 1.588–4.464, p < 0.001) and DFS (HR 2.389, 95% CI 1.447–3.946, p < 0.001). The univariate and multivariate Cox regression analyses indicate that the signature is an independent factor for predicting survival of patients with ESCC. Combination of the signature and TNM staging was more powerful in predicting OS than TNM staging alone in both the training (AUC: 0.772 vs 0.681, p = 0.002) and independent cohorts (AUC: 0.772 vs 0.660, p = 0.003). Conclusions The 7-lncRNA signature is a potential prognostic biomarker in patients with ESCC and may help in treatment decision when combined with the TNM staging system.
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Affiliation(s)
- Nuo-Qing Weng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Building 2, Room 704, Guzngzhou, 510060, China.,Guangdong Esophageal Cancer Institute, Guangzhou, 510060, China
| | - Jun Chi
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Building 2, Room 704, Guzngzhou, 510060, China.,Guangdong Esophageal Cancer Institute, Guangzhou, 510060, China.,Department of Endoscopy and Laser, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, China
| | - Jing Wen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Building 2, Room 704, Guzngzhou, 510060, China.,Guangdong Esophageal Cancer Institute, Guangzhou, 510060, China.,Department of Thoracic Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, China
| | - Shi-Juan Mai
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Building 2, Room 704, Guzngzhou, 510060, China.,Guangdong Esophageal Cancer Institute, Guangzhou, 510060, China
| | - Mei-Yin Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Building 2, Room 704, Guzngzhou, 510060, China.,Guangdong Esophageal Cancer Institute, Guangzhou, 510060, China
| | - Long Huang
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Ji Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Building 2, Room 704, Guzngzhou, 510060, China.,Guangdong Esophageal Cancer Institute, Guangzhou, 510060, China
| | - Xian-Zi Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Building 2, Room 704, Guzngzhou, 510060, China.,Guangdong Esophageal Cancer Institute, Guangzhou, 510060, China
| | - Guo-Liang Xu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Building 2, Room 704, Guzngzhou, 510060, China. .,Guangdong Esophageal Cancer Institute, Guangzhou, 510060, China. .,Department of Endoscopy and Laser, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, China.
| | - Jian-Hua Fu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Building 2, Room 704, Guzngzhou, 510060, China. .,Guangdong Esophageal Cancer Institute, Guangzhou, 510060, China. .,Department of Thoracic Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, China.
| | - Hui-Yun Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dongfeng East Road, Building 2, Room 704, Guzngzhou, 510060, China. .,Guangdong Esophageal Cancer Institute, Guangzhou, 510060, China.
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29
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He LJ, Xie C, Wang ZX, Li Y, Xiao YT, Gao XY, Shan HB, Luo LN, Chen LM, Luo GY, Yang P, Zeng SC, Xu GL, Li JJ. Submucosal Saline Injection Followed by Endoscopic Ultrasound versus Endoscopic Ultrasound Only for Distinguishing between T1a and T1b Esophageal Cancer. Clin Cancer Res 2019; 26:384-390. [PMID: 31615934 DOI: 10.1158/1078-0432.ccr-19-1722] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/08/2019] [Accepted: 10/11/2019] [Indexed: 12/24/2022]
Abstract
PURPOSE To examine whether submucosal saline injection (SSI) can improve traditional endoscopic ultrasound (EUS) accuracy in distinguishing between T1a and T1b stage esophageal squamous cell carcinoma (ESCC). EXPERIMENTAL DESIGN Patients with T1N0M0 stage ESCC (n = 180) ages 18 to 85 years were enrolled between February 14, 2012 to June 4, 2018 at Sun Yat-sen University Cancer Center (Guangdong, China). They were randomly assigned (1:1) to receive either EUS examination after 3-5 mL SSI or EUS only examination. All the patients were referred to thoracic surgeons to receive endoscopic resection (ER) or esophagectomy 5 to 10 days after EUS examination. Standard EUS criteria were used to preoperatively stage the ESCC cases, and surgical pathology reports after referral were used to postoperatively stage the cases. The primary endpoint was the diagnostic accuracy of T1b staging [defined as the sum of the true positive (T1b) and true negative (T1a) cases divided by the total number of cases]. RESULTS Among the per-protocol population, the SSI+EUS group (n = 81) was superior to the EUS-only group (n = 85) in terms of the diagnostic accuracy for T1b staging [93.8% (95% confidence interval (CI), 88.6-99.1) vs. 65.9% (95% CI, 55.8-76.0); P < 0.001]. The positive predictive value of SSI+EUS for diagnosing T1b ESCC reached 90.9% (95% CI, 81.1-100), which was significantly superior to that of EUS only [0.576 (0.450-0.702), P = 0.001]. CONCLUSIONS SSI significantly improves the diagnostic accuracy of EUS in distinguishing between T1a and T1b ESCC, which might help avoid unnecessary esophagectomy and diagnostic ER.
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Affiliation(s)
- Long-Jun He
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Chuanbo Xie
- Cancer Prevention Cancer, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Zi-Xian Wang
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Yin Li
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Yi-Tai Xiao
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Xiao-Yan Gao
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Hong-Bo Shan
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Lin-Na Luo
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Li-Ming Chen
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Guang-Yu Luo
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Ping Yang
- Department of Pathology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Shuo-Chun Zeng
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Guo-Liang Xu
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China.
| | - Jian-Jun Li
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Guangzhou, China.
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Fu T, Liu L, Yang QL, Wang Y, Xu P, Zhang L, Liu S, Dai Q, Ji Q, Xu GL, He C, Luo C, Zhang L. Thymine DNA glycosylase recognizes the geometry alteration of minor grooves induced by 5-formylcytosine and 5-carboxylcytosine. Chem Sci 2019; 10:7407-7417. [PMID: 31489163 PMCID: PMC6713860 DOI: 10.1039/c9sc02807b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 06/17/2019] [Indexed: 12/13/2022] Open
Abstract
The dynamic DNA methylation-demethylation process plays critical roles in gene expression control and cell development. The oxidation derivatives of 5-methylcytosine (5mC) generated by Tet dioxygenases in the demethylation pathway, namely 5-hydroxymethylcytosine (5hmC), 5-formylcytosine (5fC), and 5-carboxylcytosine (5caC), could impact biological functions by altering DNA properties or recognition by potential reader proteins. Hence, in addition to the fifth base 5mC, 5hmC, 5fC, and 5caC have been considered as the sixth, seventh, and eighth bases of the genome. How these modifications would alter DNA and be specifically recognized remain unclear, however. Here we report that formyl- and carboxyl-modifications on cytosine induce the geometry alteration of the DNA minor groove by solving two high-resolution structures of a dsDNA decamer containing fully symmetric 5fC and 5caC. The alterations are recognized distinctively by thymine DNA glycosylase TDG via its finger residue R275, followed by subsequent preferential base excision and DNA repair. These observations suggest a mechanism by which reader proteins distinguish highly similar cytosine modifications for potential differential demethylation in order to achieve downstream biological functions.
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Affiliation(s)
- Tianran Fu
- Department of Pharmacology and Chemical Biology , Shanghai Jiao Tong University School of Medicine , Shanghai , P. R. China . ; .,Shanghai Universities Collaborative Innovation Center for Translational Medicine , Shanghai , P. R. China
| | - Liping Liu
- CAS Key Laboratory of Receptor Research , State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica , Chinese Academy of Sciences , Shanghai , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Qing-Lin Yang
- State Key Laboratory of Molecular Biology , Chinese Academy of Sciences Center for Excellence in Molecular Cell Science , Shanghai Institute of Biochemistry and Cell Biology , Chinese Academy of Sciences , University of Chinese Academy of Sciences , Shanghai , China
| | - Yuxin Wang
- Department of Pharmacology and Chemical Biology , Shanghai Jiao Tong University School of Medicine , Shanghai , P. R. China . ; .,Shanghai Universities Collaborative Innovation Center for Translational Medicine , Shanghai , P. R. China
| | - Pan Xu
- CAS Key Laboratory of Receptor Research , State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica , Chinese Academy of Sciences , Shanghai , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Lin Zhang
- Department of Pharmacology and Chemical Biology , Shanghai Jiao Tong University School of Medicine , Shanghai , P. R. China . ; .,Shanghai Universities Collaborative Innovation Center for Translational Medicine , Shanghai , P. R. China
| | - Shien Liu
- CAS Key Laboratory of Receptor Research , State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica , Chinese Academy of Sciences , Shanghai , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Qing Dai
- Department of Chemistry , Department of Biochemistry and Molecular Biology , Institute for Biophysical Dynamics , The University of Chicago , Chicago , Illinois , USA
| | - Quanjiang Ji
- School of Physical Science and Technology , ShanghaiTech University , Shanghai , China
| | - Guo-Liang Xu
- State Key Laboratory of Molecular Biology , Chinese Academy of Sciences Center for Excellence in Molecular Cell Science , Shanghai Institute of Biochemistry and Cell Biology , Chinese Academy of Sciences , University of Chinese Academy of Sciences , Shanghai , China
| | - Chuan He
- Department of Chemistry , Department of Biochemistry and Molecular Biology , Institute for Biophysical Dynamics , The University of Chicago , Chicago , Illinois , USA
| | - Cheng Luo
- CAS Key Laboratory of Receptor Research , State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica , Chinese Academy of Sciences , Shanghai , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Liang Zhang
- Department of Pharmacology and Chemical Biology , Shanghai Jiao Tong University School of Medicine , Shanghai , P. R. China . ; .,Shanghai Universities Collaborative Innovation Center for Translational Medicine , Shanghai , P. R. China
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Zhang CH, Sheng JQ, Sarsaiya S, Shu FX, Liu TT, Tu XY, Ma GQ, Xu GL, Zheng HX, Zhou LF. The anti-diabetic activities, gut microbiota composition, the anti-inflammatory effects of Scutellaria-coptis herb couple against insulin resistance-model of diabetes involving the toll-like receptor 4 signaling pathway. J Ethnopharmacol 2019; 237:202-214. [PMID: 30807814 DOI: 10.1016/j.jep.2019.02.040] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 02/15/2019] [Accepted: 02/22/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Scutellaria-coptis herb couple (SC) is one of the well-known herb couples in many traditional Chinese compound formulas used for the treatment of diabetes mellitus (DM), which has been used to treat DM for thousands of years in China. AIM OF THE STUDY Few studies have confirmed in detail the anti-diabetic activities of SC in vivo and in vitro. The present investigations aimed to evaluate the anti-diabetic activity of SC in type 2 diabetic KK-Ay mice and in RAW264.7 macrophages to understand its possible mechanism. MATERIALS AND METHODS High-performance liquid chromatography with ultraviolet detection (HPLC-UV) and LC-LTQ-Orbitrap Pro mass spectrometry were used to analyze the active ingredients of SC extracts and control the quality. A type 2 diabetic KK-Ay mice model was established by high-fat diet. Body weight, fasting blood glucose levels, fasting blood insulin levels, glycosylated hemoglobin and glycosylated serum protein were measured. The effects of SC on total cholesterol (TC), high-density lipoprotein (HDL) and triglyceride (TG) levels were examined. The lipopolysaccharide (LPS), interleukin-6 (IL-6) and tumour necrosis factor alpha (TNF-α) levels were measured. Gut microbial communities were assayed by polymerase chain reaction (PCR) and PCR-denaturing gradient gel electrophoresis (PCR-DGGE) methods. The expressions of Toll-like receptor 4 (TLR4) and MyD88 protein in the colons were measured by western blot. In RAW264.7 macrophages, IL-6, TNF-α, TLR4 and MyD88 protein levels were measured by enzyme-linked immunosorbent assay (ELISA) kits or western blot, and the mRNA expression of IL-6, TNF-α and TLR4 was examined by the real time PCR. RESULTS The present results showed that the SC significantly increased blood HDL and significantly reduced fasting blood glucose, fasting blood insulin, glycosylated hemoglobin, glycosylated serum protein, TC, TG, LPS, IL-6 and TNF-α levels (P < 0.05 or P < 0.01) in type-2 diabetic KK-Ay mice. Furthermore, SC could regulate the structure of intestinal flora. Additionally, the expressions of TLR4 and MyD88 protein in the colons were significantly decreased in the model group (P < 0.05 or P < 0.01). However, SC had no significant effect on weight gain. In RAW264.7 macrophages, SC containing serum (SC-CS) (5%, 10% and 20%) significantly decreased IL-6, TNF-α, TLR4 and MyD88 protein levels and the mRNA expression of IL-6, TNF-α and TLR4 (P < 0.05 or P < 0.01). CONCLUSIONS The anti-diabetic effects of SC were attributed to its regulation of intestinal flora and anti-inflammation involving the TLR4 signaling pathway. These findings provide a new insight into the anti-diabetic application for SC in clinical settings and display the potential of SC in the treatment of DM.
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Affiliation(s)
- Chang-Hua Zhang
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medicine in Jiangxi, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, PR China
| | - Jun-Qing Sheng
- College of Life Science, Nanchang University, Nanchang 330031, PR China.
| | - Surendra Sarsaiya
- Key Laboratory of Basic Pharmacology and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563003, PR China; Department of Microbiology, Sri Satya Sai University of Technology and Medical Sciences, Sehore, Madhya Pradesh, India
| | - Fu-Xing Shu
- Bioresource Institute Of Healthy Utilization, Zunyi Medical University, Zunyi, Guizhou 563000, PR China
| | - Tong-Tong Liu
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, PR China
| | - Xiu-Ying Tu
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, PR China
| | - Guang-Qiang Ma
- College of Life Science, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, PR China
| | - Guo-Liang Xu
- Research Center for Differentiation and Development of Basic Theory of TCM, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, PR China
| | - Hong-Xiang Zheng
- College of Humanities of TCM, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, PR China
| | - Li-Fen Zhou
- Large precise instruments shared services center of TCM, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, PR China
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Hou L, Chen S, Liu J, Guo J, Chen Z, Zhu Q, Zhang W, Xu G, Liang Y, Wu R, Fang X, Zhang C, Xing K. Transcriptomic and physiological changes in western mosquitofish (Gambusia affinis) after exposure to norgestrel. Ecotoxicol Environ Saf 2019; 171:579-586. [PMID: 30654292 DOI: 10.1016/j.ecoenv.2018.12.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 12/08/2018] [Accepted: 12/18/2018] [Indexed: 06/09/2023]
Abstract
Norgestrel (NGT) is a synthetic progestin used in human and veterinary medicine. Adult female mosquitofish were exposed to NGT for 42 d at 377 ng L-1. The fin morphology and the liver transcriptome were assessed. NGT exposure increased ray 4:6 length ratio. As compared to the control, NGT treatment affected the expression of 11,772 annotated transcripts in female mosquitofish. Specifically, we found 5780 were repressed while 5992 were significantly induced. Gene ontology (GO) analysis showed that 53 KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways and 158 GO terms were significantly over expressed. Genes showing the largest magnitude of expression changes were related to fin development, androgen biosynthesis, and lipid and fatty acid metabolisms, suggesting the involvement of these biological processes in response to NGT exposure in G. affinis. This first comprehensive study on the transcriptomic alterations by NGT in G. affinis not only provides valuable information on the development of molecular markers but also opens new avenues for studies on the molecular mechanisms of effects of NGT in particular and possibly other progestins in G. affinis.
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Affiliation(s)
- Liping Hou
- School of Life Sciences, Guangzhou University, Guangzhou 510655, China; Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Shanduo Chen
- School of Life Sciences, Guangzhou University, Guangzhou 510655, China
| | - Juan Liu
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou 510006, China.
| | - Jingwen Guo
- College of Environmental Science and Engineering, Guangzhou University, Guangzhou 510655, China
| | - Zhong Chen
- NanWu Middle School, Guangzhou 510655, China
| | | | - Wei Zhang
- Guangzhou Tieyi Middle School, Guangzhou 510655, China
| | - GuoLiang Xu
- Rural Non-point Source Pollution Comprehensive Management Technology Center of Guangdong Province, Guangzhou 510655, China
| | - Ye Liang
- School of Life Sciences, Guangzhou University, Guangzhou 510655, China
| | - Rongrong Wu
- School of Life Sciences, Guangzhou University, Guangzhou 510655, China
| | - Xuwen Fang
- School of Life Sciences, Guangzhou University, Guangzhou 510655, China
| | - Cuiping Zhang
- School of Life Sciences, Guangzhou University, Guangzhou 510655, China
| | - Ke Xing
- School of Life Sciences, Guangzhou University, Guangzhou 510655, China.
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Che QQ, Wu Q, Liang YB, Sun RM, Lyu QW, Ma JL, Hu H, Lin X, Xu GL, Sun SG, Zhang C, Wang QY, Yu J, Bai F. [Meta-analysis on safety and efficacy of dual antiplatelet therapy combining with proton pump inhibitors for patients after percutaneous coronary intervention]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:129-140. [PMID: 30818941 DOI: 10.3760/cma.j.issn.0253-3758.2019.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the impact of dual antiplatelet (DAPT) therapy combining with or without proton pump inhibitors (PPI) on the main outcomes after percutaneous coronary intervention (PCI). Methods: The PubMed, EMBASE and Cochrane Library were searched for relevant literature and the references obtained from these sources were retrieved manually from inception till September 2017. Inclusion and exclusion criteria were established follow the Cochrane review standard. A total of 977 literatures were included, 193 duplicates were excluded, 74 reviews, case reports, letters and systematic reviews were excluded, 667 literatures were excluded after reading the title and abstract, 34 literatures were excluded due to non-randomized control studies and unrelated outcome indicators, and 9 literatures were finally included with a total of 16 589 patients. RevMan 5.3 software was used to compare the incidence of major adverse cardiovascular events (MACE), cardiogenic death, recurrent myocardial infarction, target vessel revascularization, all-cause death, stent thrombosis, stroke, gastrointestinal bleeding and gastrointestinal events in patients with DAPT combining with or without PPI after PCI. Results: MACE was observed in 8 out of the 9 included literatures, and the results showed that MACE occurred in 561 out of 6 282 patients receiving DAPT combining with PPI therapy and in 951 out of 9 632 patients using DAPT alone (OR=1.15, 95%CI 0.88-1.51, P>0.05). Cardiogenic death was observed in 7 out of the 9 included literatures, and the results showed that cardiogenic death occurred in 172 out of 6 453 patients receiving DAPT combining with PPI treatment and in 321 out of the 9 839 patients using DAPT alone (OR=0.97, 95%CI 0.80-1.18, P>0.05). Recurrent myocardial infarction was observed in 7 out of the 9 included literatures, the results showed 416 out of 6 282 cases in DAPT combining with PPI therapy group experienced recurrent myocardial infarction and 691 out of 9 632 cases in DAPT group experienced recurrent myocardial infarction (OR=1.01, 95%CI 0.89-1.16, P>0.05). Four out of 9 literatures observed revascularization. The results showed that revascularization was performed in 64 out of 2 173 patients receiving DAPT combining with PPI therapy and in 105 out of the 2 770 patients using DAPT alone (OR=1.33, 95%CI 0.55-3.24, P>0.05). All-cause death was observed in 7 out of the 9 included literatures, and the results showed that all-cause death occurred in 172 out of the 6 453 patients in DAPT combining with PPI therapy group and in 321 out of the 9 839 patients using DAPT alone (OR=0.97, 95%CI 0.80-1.18, P>0.05). Three out of the 9 included articles observed stent thrombosis, and the results showed that stent thrombosis occurred in 99 out of 2 997 patients receiving DAPT combining with PPI therapy and in 245 out of the 6 198 patients treated with DAPT (OR=1.07, 95%CI 0.83-1.37, P>0.05). Stroke was observed in 2 out of the 9 included literatures. The results showed that stroke occurred in 5 out of 2 019 patients receiving DAPT combining with PPI therapy, and in 4 out of the 2 033 patients treated with DAPT (OR=1.00, 95%CI 0.29-3.49, P>0.05). Gastrointestinal bleeding was observed in 6 out of the 9 included literatures. The results showed that gastrointestinal bleeding occurred in 26 out of 3 517 patients receiving DAPT combined with PPI therapy, and in 93 out of the 3 506 patients treated with DAPT, gastrointestinal bleeding was significantly lower in the DAPT combining with PPI group than DAPT alone group (OR=0.27, 95%CI 0.17-0.41, P<0.01). Gastrointestinal events were reported in 6 out of the 9 included articles. Similarly, gastrointestinal events were observed in 51 out of 3 517 patients receiving DAPT combined with PPI therapy, and in 190 out of the 3 506 patients treated with DAPT alone, the incidence of gastrointestinal events in the DAPT combined with PPI group was significantly lower than DAPT alone group (OR=0.24, 95%CI 0.14-0.42, P<0.01). Conclusions: The incidence of MACE, cardiogenic death, recurrent myocardial infarction, target vessel revascularization, all-cause death, stent thrombosis and stroke are not affected by DAPT combined with PPI therapy after PCI, while the incidence of gastrointestinal bleeding and gastrointestinal events could be reduced by adding PPI to DAPT in patients undergoing PCI.
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Affiliation(s)
- Q Q Che
- Department of Cardiology, Lanzhou University Second Hospital, Lanzhou 730030, China
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Wang RD, Jia WD, Ge YS, Ma JL, Xu GL. [Influential factors for failure of enhanced recovery after surgery from hepatectomy for hepatocellular carcinoma and the establishment of risk prediction model]. Zhonghua Wai Ke Za Zhi 2018; 56:693-700. [PMID: 30157576 DOI: 10.3760/cma.j.issn.0529-5815.2018.09.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the influential factors for failure of enhanced recovery after surgery(ERAS) from hepatectomy for hepatocellular carcinoma(HCC) patients and then to establish a risk prediction model. Methods: The relevant clinical data of 180 patients with HCC undergoing hepatectomy at Department of Hepatic Surgery, Affiliated Provincial Hospital, Anhui Medical University from January 2016 to June 2017 were analyzed retrospectively.There were 149 male patients and 31 female patients aging of (56.5±11.0)years(from 33 to 84 years old). The factors affecting postoperative failure of ERAS of HCC patients were identified by univariate and multivariate analyses, and then, all the obtained factors and their statistical values were used to establish the risk prediction model. Results: A total of 23 patients failed in the ERAS protocol(12.8%). The preoperative total bilirubin (TBIL), alanine aminotransferase(ALT) and amount of intraoperative bleeding were independent risk factors for failure of ERAS from hepatectomy(all P<0.05). The obtained risk prediction model was presented as follows: risk coefficient(R)=0.114×(TBIL)+ 0.082×(ALT)+ 0.008×(amount of intraoperative bleeding). At the cut of value of R=7.90, the area under the ROC curve of this model for predicting failure of ERAS was 0.866(95%CI: 0.788-0.945, P<0.01), with the sensitivity and specificity of 69.6% and 91.1%, respectively.External validation results indicated that the scoring system had good differential ability(area under the ROC curve=0.889, 95%CI: 0.811-0.967, P<0.01). Conclusions: Higher level of preoperative TBIL(>21 μmol/L) and ALT(>50 U/L) and the larger amount of intraoperative bleeding (more than 400 ml) are independent risk factors for failure of ERAS inpatients undergoing hepatectomy for HCC and the established prediction model may have certain value for risk assessment.
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Affiliation(s)
- R D Wang
- Department of Hepatic Surgery, Affiliated Provincial Hospital, Anhui Medical University, Anhui Key Laboratory of Hepatopancreatobiliary Surgery, Hefei 230001, China
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He LJ, Xie C, Li Y, Luo LN, Pan K, Gao XY, Liu LZ, Gao JM, Luo GY, Shan HB, Chen MY, Zhao C, Fan WJ, Yang P, Xu GL, Li JJ. Ultrasound-guided fine needle aspiration of retropharyngeal lymph nodes after radiotherapy for nasopharyngeal carcinoma: a novel technique for accurate diagnosis. Cancer Commun (Lond) 2018; 38:20. [PMID: 29764509 PMCID: PMC5993149 DOI: 10.1186/s40880-018-0286-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 01/22/2018] [Indexed: 12/11/2022] Open
Abstract
Background Enlarged retropharyngeal lymph nodes (RLNs) are very common in patients with nasopharyngeal carcinoma (NPC) undergoing radiotherapy. The most suitable treatment option for enlarged RLNs depends on the pathological results. However, RLN sampling is difficult and imminent in the clinic setting. We recently developed a novel minimally invasive technique termed endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) for sampling RLN tissues sufficient for pathological or cytological diagnosis. Methods We enrolled 30 post-radiotherapy patients with NPC with suspected RLN metastasis detected via magnetic resonance imaging (MRI). The EUS probe was introduced into the nasopharynx via the nostrils, and EUS was then used to scan the retropharyngeal space and locate the RLN in the anterior carotid sheath. EUS-FNA was subsequently performed. The safety and efficacy of using EUS-FNA to sample the RLN tissues were assessed. Results Strips of tissue were successfully sampled from all patients using EUS-FNA. Of the 30 patients, 23 were confirmed to have cancer cells in the biopsied tissues via pathology or cytology examinations with 1 EUS-FNA biopsy session. The seven cases without confirmed cancer cells were subsequently reanalyzed by using another EUS-FNA biopsy session, and two more cases were confirmed possessing cancer cells. The other five patients without confirmed cancer cells were closely followed with MRI every month for 3 months. After follow-up for 3 months, three patients were still considered cancer-free due to the presence of RLNs with stable or shrinking diameters. The rest two patients who showed progressive disease underwent a third EUS-FNA biopsy procedure and were further confirmed to be cancer cell-positive. In the whole cohort reported here, the EUS-FNA procedure was not associated with any severe complications. Conclusion EUS-FNA is a safe and effective diagnostic approach for sampling tissues from the RLNs in patients with suspected recurrent NPC. Electronic supplementary material The online version of this article (10.1186/s40880-018-0286-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Long-Jun He
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China.,Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Chuanbo Xie
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China.,Department of Cancer Prevention Research, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Yin Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China.,Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Lin-Na Luo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China.,Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Ke Pan
- Department of Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77054, USA
| | - Xiao-Yan Gao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China.,Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Li-Zhi Liu
- Department of Imaging and Invention Radiology, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Jian-Ming Gao
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Guang-Yu Luo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China.,Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Hong-Bo Shan
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China.,Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Ming-Yuan Chen
- Department of Nasopharyngeal Oncology, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Chong Zhao
- Department of Nasopharyngeal Oncology, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Wei-Jun Fan
- Department of Imaging and Invention Radiology, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Ping Yang
- Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Guo-Liang Xu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China.,Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Jian-Jun Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China. .,Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China.
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Yang J, Luo GY, Liang RB, Zeng TS, Long H, Fu JH, Xu GL, Yang MZ, Li S, Zhang LJ, Lin P, Wang X, Hou X, Yang HX. Efficacy of Endoscopic Ultrasonography for Determining Clinical T Category for Esophageal Squamous Cell Carcinoma: Data From 1434 Surgical Cases. Ann Surg Oncol 2018; 25:2075-2082. [PMID: 29667114 DOI: 10.1245/s10434-018-6406-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Indexed: 01/07/2023]
Abstract
BACKGROUND The efficacy of endoscopic ultrasonography (EUS) for determining T category is variable for esophageal squamous cell carcinoma (ESCC). We aimed to assess the efficacy of EUS in accurately identifying T category for ESCC based on the 8th AJCC Cancer Staging Manual. METHODS A retrospective analysis was conducted using a prospectively collected ESCC database from January 2003 to December 2015, in which all patients underwent EUS examination followed by esophagectomy. The efficacy of EUS was evaluated by sensitivity, specificity, and accuracy compared with pathological T category as gold standard. Overall survival of different EUS-T (uT) categories was assessed. RESULTS In total, 1434 patients were included, of whom 58.2% were correctly classified by EUS, with 17.9% being overstaged and 23.9% being understaged. The sensitivity and accuracy of EUS for Tis, T1a, T1b, T2, T3, and T4a categories were 15.8 and 98.8%, 16.3 and 95.7%, 33.1 and 89.3%, 56.8 and 65.0%, 65.8 and 70.0%, and 27.3 and 97.5%, respectively. The survival difference between uT1a and uT1b was not statistically significant (p = 0.90), nor was that between uT4a and uT4b (p = 0.34). However, when uT category was integrated as uTis, uT1, uT2, uT3, and uT4, overall survival was clearly distinguished between the categories (p < 0.01). CONCLUSIONS EUS is in general feasible for classifying clinical T category for ESCC. However, EUS should be used with caution for discriminating between Tis, T1a, and T1b disease, as well as T4 disease.
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Affiliation(s)
- Jie Yang
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Guang-Yu Luo
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China.,Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Run-Bin Liang
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Tai-Shan Zeng
- School of Mathematical Sciences, South China Normal University, Guangzhou, Guangdong, China
| | - Hao Long
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Jian-Hua Fu
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Guo-Liang Xu
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China.,Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Mu-Zi Yang
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Shuo Li
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Lan-Jun Zhang
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Peng Lin
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Xin Wang
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Xue Hou
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China. .,Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China. .,Department of Medical Oncology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.
| | - Hao-Xian Yang
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China. .,State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China. .,Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China.
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Lee CC, Peng SH, Shen L, Lee CF, Du TH, Kang ML, Xu GL, Upadhyay AK, Cheng X, Yan YT, Zhang Y, Juan LJ. The Role of N-α-acetyltransferase 10 Protein in DNA Methylation and Genomic Imprinting. Mol Cell 2017; 68:89-103.e7. [PMID: 28943313 DOI: 10.1016/j.molcel.2017.08.025] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 07/13/2017] [Accepted: 08/24/2017] [Indexed: 01/21/2023]
Abstract
Genomic imprinting is an allelic gene expression phenomenon primarily controlled by allele-specific DNA methylation at the imprinting control region (ICR), but the underlying mechanism remains largely unclear. N-α-acetyltransferase 10 protein (Naa10p) catalyzes N-α-acetylation of nascent proteins, and mutation of human Naa10p is linked to severe developmental delays. Here we report that Naa10-null mice display partial embryonic lethality, growth retardation, brain disorders, and maternal effect lethality, phenotypes commonly observed in defective genomic imprinting. Genome-wide analyses further revealed global DNA hypomethylation and enriched dysregulation of imprinted genes in Naa10p-knockout embryos and embryonic stem cells. Mechanistically, Naa10p facilitates binding of DNA methyltransferase 1 (Dnmt1) to DNA substrates, including the ICRs of the imprinted allele during S phase. Moreover, the lethal Ogden syndrome-associated mutation of human Naa10p disrupts its binding to the ICR of H19 and Dnmt1 recruitment. Our study thus links Naa10p mutation-associated Ogden syndrome to defective DNA methylation and genomic imprinting.
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Affiliation(s)
- Chen-Cheng Lee
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC
| | - Shih-Huan Peng
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC; Institute of Molecular Medicine, National Taiwan University College of Medicine, Taipei 100, Taiwan, ROC
| | - Li Shen
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Chung-Fan Lee
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC
| | - Ting-Huei Du
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC
| | - Ming-Lun Kang
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC
| | - Guo-Liang Xu
- Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Anup K Upadhyay
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Xiaodong Cheng
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322, USA; Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yu-Ting Yan
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan, ROC
| | - Yi Zhang
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA.
| | - Li-Jung Juan
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC.
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38
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Zuo E, Cai YJ, Li K, Wei Y, Wang BA, Sun Y, Liu Z, Liu J, Hu X, Wei W, Huo X, Shi L, Tang C, Liang D, Wang Y, Nie YH, Zhang CC, Yao X, Wang X, Zhou C, Ying W, Wang Q, Chen RC, Shen Q, Xu GL, Li J, Sun Q, Xiong ZQ, Yang H. One-step generation of complete gene knockout mice and monkeys by CRISPR/Cas9-mediated gene editing with multiple sgRNAs. Cell Res 2017; 27:933-945. [PMID: 28585534 PMCID: PMC5518993 DOI: 10.1038/cr.2017.81] [Citation(s) in RCA: 123] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 04/19/2017] [Accepted: 04/21/2017] [Indexed: 12/13/2022] Open
Abstract
The CRISPR/Cas9 system is an efficient gene-editing method, but the majority of gene-edited animals showed mosaicism, with editing occurring only in a portion of cells. Here we show that single gene or multiple genes can be completely knocked out in mouse and monkey embryos by zygotic injection of Cas9 mRNA and multiple adjacent single-guide RNAs (spaced 10-200 bp apart) that target only a single key exon of each gene. Phenotypic analysis of F0 mice following targeted deletion of eight genes on the Y chromosome individually demonstrated the robustness of this approach in generating knockout mice. Importantly, this approach delivers complete gene knockout at high efficiencies (100% on Arntl and 91% on Prrt2) in monkey embryos. Finally, we could generate a complete Prrt2 knockout monkey in a single step, demonstrating the usefulness of this approach in rapidly establishing gene-edited monkey models.
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Affiliation(s)
- Erwei Zuo
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yi-Jun Cai
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Kui Li
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yu Wei
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- State Key Laboratory of Cell Biology, Shanghai Key Laboratory of Molecular Andrology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- Shanghai University, Shanghai 200444, China
| | - Bang-An Wang
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Yidi Sun
- Key Lab of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Zhen Liu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiwei Liu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Xinde Hu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Wei Wei
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi 530004, China
| | - Xiaona Huo
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Linyu Shi
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Cheng Tang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dan Liang
- State Key Laboratory of Cell Biology, Shanghai Key Laboratory of Molecular Andrology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yan Wang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yan-Hong Nie
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Chen-Chen Zhang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Xuan Yao
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xing Wang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Changyang Zhou
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenqin Ying
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Qifang Wang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ren-Chao Chen
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Qi Shen
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Guo-Liang Xu
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Jinsong Li
- State Key Laboratory of Cell Biology, Shanghai Key Laboratory of Molecular Andrology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Qiang Sun
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Zhi-Qi Xiong
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Hui Yang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
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Li L, Wang LX, Xu GL, Yang F, Gao QL, Niu H, Shi B, Jiang X. Bio-informatics analysis of renal carcinoma gene matrix metalloproteinase-7. Indian J Cancer 2017; 53:13-8. [PMID: 27146730 DOI: 10.4103/0019-509x.180835] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Renal cancer is one of the common malignant tumors of the urinary system, seriously threatening human being's health. The current discoveries, however, are far enough for efficient and secure treatment of renal cancer. AIMS The aim was to explore the mechanism of matrix metalloproteinase-7 (MMP-7) protein in renal carcinoma cell metastasis by bioinformatics analysis. MATERIALS AND METHODS Bioinformatics methods were used to analyze the composition of amino acids, as well as transmembrane structure, coiled coils, subcellular localization, signal peptide, functions and structures at all levels. RESULTS AND CONCLUSIONS It showed that the gene MMP-7 totally had 1131 bp. A peptide chain containing 267 amino acids was encoded in the coding region. Based on random coil, α helix, and further super-helix, it had formed a stable neutral hydrophilic protein. The subcellular location analysis indicated that the protein was located outside the cell. The mature peptide started from the 18th amino acid, and its front-end was the sequence of the signal peptide, belonging to the secreted protein. Analysis of the functional domain showed that this protein had two functional domains, the PG binding domain, and the zinc finger binding domain. Moreover, the protein, which was cross-linked with it, was also one related to cancer cell proliferation and metastasis. To sum up, MMP-7 is a stable neutral hydrophilic secreted protein, and it may play a vital role in the invasion and metastasis of cancer cells.
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Affiliation(s)
| | - L X Wang
- Department of Medical Oncology, The First Affiliated Hospital of Zhengzhou University, and Henan Cancer Hospital, Affiliated to Zhengzhou University, Zhengzhou, Henan, China
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40
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Zhang JL, Liu M, Yang Q, Lin SY, Shan HB, Wang HY, Xu GL. Effects of omeprazole in improving concurrent chemoradiotherapy efficacy in rectal cancer. World J Gastroenterol 2017; 23:2575-2584. [PMID: 28465642 PMCID: PMC5394521 DOI: 10.3748/wjg.v23.i14.2575] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 01/26/2017] [Accepted: 02/17/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To explore the effects of omeprazole on chemoradiotherapy efficacy and tumor recurrence in rectal cancer.
METHODS The medical data of 125 rectal cancer patients who received the same neoadjuvant chemoradiotherapy (CRT) followed by surgery were retrospectively collected. Patients who received omeprazole (OME) orally at a dose of 20 mg at least once daily for six days and/or intravenously at 40 mg a day were recognized as eligible OME users (EOU). Otherwise, patients were regarded as non-eligible OME users (non-EOU). Moreover, a preferred OME dose cut-off of 200 mg on tumor recurrence was obtained by receiver operating characteristic (ROC) curves. Patients were divided into two groups: the effective OME group (EOG, OME ≥ 200 mg) and the non-effective OME group (non-EOG, OME < 200 mg).
RESULTS The good response rate of CRT efficacy (50.8%) in EOU was significantly increased compared with non-EOU (30.6%) (P = 0.02). The recurrence rate in the EOG was 10.3%, which was significantly lower compared with 31.3% in non-EOG (P = 0.025). The good response rate of CRT efficacy in EOG was 55.2%, which was obviously higher compared with 36.5% in non-EOG, with a significant difference (P = 0.072). Multivariate Cox analysis demonstrated that OME (non-EOG and EOG) was an independent and significant impact factor for DFS (P = 0.048, HR = 0.30, 95%CI: 0.09-0.99).
CONCLUSION When applied as an adjuvant drug in cancer treatment for relieving common side effects of chemotherapy, omeprazole has a synergetic effect in improving CRT efficacy and decreasing rectal cancer recurrence.
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Xie XF, Yang Q, Chi J, Yang XZ, Wang HY, Xu GL. Prognostic values of apoptosis-stimulating P53-binding protein 1 and 2 and their relationships with clinical characteristics of esophageal squamous cell carcinoma patients: a retrospective study. Chin J Cancer 2017; 36:15. [PMID: 28103919 PMCID: PMC5248482 DOI: 10.1186/s40880-016-0169-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 03/07/2016] [Indexed: 01/10/2023]
Abstract
BACKGROUND Esophageal squamous cell carcinoma (ESCC) is a leading cause of cancer-related death, and new prognostic biomarkers are urgently needed. Apoptosis-stimulating P53-binding protein 1 (ASPP1) and 2 (ASPP2) have been reported to play important roles in the development, progression, metastasis, and prognosis of cancers, but their roles in ESCC have not been elucidated. In this study, we examined the expression of ASPP1 and ASPP2 in ESCC to evaluate their prognostic values. METHODS The protein expression of ASPP1, ASPP2, and P53 in 175 specimens of ESCC was detected using immunohistochemical staining; their expression in cancerous and noncancerous tissues was scored according to the staining intensity and the percentage of stained cells. The associations of ASPP1, ASPP2, and P53 with clinicopathologic parameters, overall survival (OS), and disease-free survival (DFS) were analyzed. RESULTS The protein expression levels of ASPP2 and P53 were significantly higher in cancerous tissues than in paired noncancerous tissues (P < 0.001), whereas the expression levels of ASPP1 in the two groups were similar. In ESCCs, ASPP1 expression was significantly associated with histological differentiation (P = 0.002) and invasive depth (P = 0.014); ASPP2 expression was associated with age (P = 0.029) and histological differentiation (P < 0.001); and P53 expression was associated with age (P = 0.021) and tumor size (P = 0.040). No correlations were found between ASPP1, ASPP2, and P53 expression. Survival analysis revealed that high ASPP2 expression was significantly associated with increased 5-year OS (P = 0.001) and DFS rates (P = 0.010) and that high P53 expression was significantly associated with a reduced 5-year DFS rate of ESCC patients (P = 0.015). Multivariate Cox analysis indicated that ASPP2 was an independent predictor of OS [hazard ratio (HR): 0.541, 95% confidence interval (CI) 0.363-0.804] and DFS (HR: 0.599, 95% CI 0.404-0.888) of ESCC patients and that P53 was an independent predictor of DFS (HR: 2.161, 95% CI 1.100-4.245). CONCLUSIONS ASPP1 might be involved in the progression of ESCC, and ASPP2 was a potential prognostic biomarker of ESCC and should be evaluated in future studies.
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Affiliation(s)
- Xiao-Feng Xie
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, P. R. China.,Department of Endoscopy and Laser, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, Guangdong, 510060, P. R. China.,Guangdong Esophageal Cancer Institute, Guangzhou, Guangdong, 510060, P. R. China
| | - Qing Yang
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, P. R. China.,Department of Endoscopy and Laser, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, Guangdong, 510060, P. R. China.,Guangdong Esophageal Cancer Institute, Guangzhou, Guangdong, 510060, P. R. China
| | - Jun Chi
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, P. R. China.,Department of Endoscopy and Laser, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, Guangdong, 510060, P. R. China.,Guangdong Esophageal Cancer Institute, Guangzhou, Guangdong, 510060, P. R. China
| | - Xian-Zi Yang
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, P. R. China.,Guangdong Esophageal Cancer Institute, Guangzhou, Guangdong, 510060, P. R. China
| | - Hui-Yun Wang
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, P. R. China. .,Guangdong Esophageal Cancer Institute, Guangzhou, Guangdong, 510060, P. R. China.
| | - Guo-Liang Xu
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, P. R. China. .,Department of Endoscopy and Laser, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, Guangdong, 510060, P. R. China. .,Guangdong Esophageal Cancer Institute, Guangzhou, Guangdong, 510060, P. R. China.
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Zhao Y, Liu Y, Lan XM, Xu GL, Sun YZ, Li F, Liu HN. Effect of Dendrobium officinale Extraction on Gastric Carcinogenesis in Rats. Evid Based Complement Alternat Med 2016; 2016:1213090. [PMID: 28119756 PMCID: PMC5227151 DOI: 10.1155/2016/1213090] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 10/28/2016] [Accepted: 10/31/2016] [Indexed: 12/16/2022]
Abstract
Dendrobium officinale (Tie Pi Shi Hu in Chinese) has been widely used to treat different diseases in China. Anticancer effect is one of the important effects of Dendrobium officinale. However, the molecular mechanism of its anticancer effect remains unclear. In the present study, gastric carcinogenesis in rats was used to evaluate the effect of Dendrobium officinale on cancer, and its pharmacological mechanism was explored. Dendrobium officinale extracts (4.8 and 2.4 g/kg) were orally administered to the rats of the gastric carcinogenesis model. Compared with the cancer model group, the high dose of Dendrobium officinale extracts significantly inhibited the rate of carcinogenesis. Further analysis revealed that Dendrobium officinale extracts could regulate the DNA damage, oxidative stress, and cytokines related with carcinogenesis and induce cell apoptosis in order to prevent gastric cancer.
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Affiliation(s)
- Yi Zhao
- Research Center for Differentiation and Development of Basic Theory of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
- Jiangxi Province Key Laboratory of TCM Etiopathogenisis, Nanchang 330004, China
| | - Yan Liu
- Research Center for Differentiation and Development of Basic Theory of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
- Jiangxi Province Key Laboratory of TCM Etiopathogenisis, Nanchang 330004, China
| | - Xi-Ming Lan
- Research Center for Differentiation and Development of Basic Theory of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
- Jiangxi Province Key Laboratory of TCM Etiopathogenisis, Nanchang 330004, China
| | - Guo-Liang Xu
- Research Center for Differentiation and Development of Basic Theory of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
- Jiangxi Province Key Laboratory of TCM Etiopathogenisis, Nanchang 330004, China
| | - You-Zhi Sun
- School of Basic Medical Sciences, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Fei Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany Chinese Academy of Sciences, Kunming 650201, China
| | - Hong-Ning Liu
- Research Center for Differentiation and Development of Basic Theory of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
- Jiangxi Province Key Laboratory of TCM Etiopathogenisis, Nanchang 330004, China
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Abstract
DNA demethylation can occur passively by "dilution" of methylation marks by DNA replication, or actively and independently of DNA replication. Direct conversion of 5-methylcytosine (5mC) to cytosine (C), as originally proposed, does not occur. Instead, active DNA methylation involves oxidation of the methylated base by ten-eleven translocations (TETs), or deamination of the methylated or a nearby base by activation induced deaminase (AID). The modified nucleotide, possibly together with surrounding nucleotides, is then replaced by the BER pathway. Recent data clarify the roles and the regulation of well-known enzymes in this process. They identify base excision repair (BER) glycosylases that may cooperate with or replace thymine DNA glycosylase (TDG) in the base excision step, and suggest possible involvement of DNA damage repair pathways other than BER in active DNA demethylation. Here, we review these new developments.
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Affiliation(s)
- Matthias Bochtler
- International Institute of Molecular and Cell Biology, Warsaw, Poland.,Institute of Biochemistry and Biophysics Polish Academy of Sciences, Warsaw, Poland
| | - Agnieszka Kolano
- International Institute of Molecular and Cell Biology, Warsaw, Poland
| | - Guo-Liang Xu
- Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
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Xiong J, Zhang Z, Chen J, Huang H, Xu Y, Ding X, Zheng Y, Nishinakamura R, Xu GL, Wang H, Chen S, Gao S, Zhu B. Cooperative Action between SALL4A and TET Proteins in Stepwise Oxidation of 5-Methylcytosine. Mol Cell 2016; 64:913-925. [PMID: 27840027 DOI: 10.1016/j.molcel.2016.10.013] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 07/28/2016] [Accepted: 10/06/2016] [Indexed: 11/30/2022]
Abstract
TET family enzymes successively oxidize 5-methylcytosine to 5-hydroxymethylcytosine, 5-formylcytosine, and 5-carboxylcytosine, leading to eventual demethylation. 5hmC and TET enzymes occupy distinct chromatin regions, suggesting unknown mechanisms controlling the fate of 5hmC within diverse chromatin environments. Here, we report that SALL4A preferentially associates with 5hmC in vitro and occupies enhancers in mouse embryonic stem cells in a largely TET1-dependent manner. Although most 5hmC at SALL4A peaks undergoes further oxidation, this process is abrogated upon deletion of Sall4 gene, with a concomitant reduction of TET2 at these regions. Thus, SALL4A facilitates further oxidation of 5hmC at its binding sites, which requires its 5hmC-binding activity and TET2, supporting a collaborative action between SALL4A and TET proteins in regulating stepwise oxidation of 5mC at enhancers. Our study identifies SALL4A as a 5hmC binder, which facilitates 5hmC oxidation by stabilizing TET2 association, thereby fine-tuning expression profiles of developmental genes in mouse embryonic stem cells.
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Affiliation(s)
- Jun Xiong
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhuqiang Zhang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
| | - Jiayu Chen
- Clinical and Translational Research Center of Shanghai First Maternity & Infant Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Hua Huang
- The State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yali Xu
- National Institute of Biological Sciences, Beijing 102206, China
| | - Xiaojun Ding
- National Institute of Biological Sciences, Beijing 102206, China
| | - Yong Zheng
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Ryuichi Nishinakamura
- Department of Kidney Development, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto 860-0811, Japan
| | - Guo-Liang Xu
- The State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Hailin Wang
- The State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - She Chen
- National Institute of Biological Sciences, Beijing 102206, China
| | - Shaorong Gao
- Clinical and Translational Research Center of Shanghai First Maternity & Infant Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Bing Zhu
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
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Dai HQ, Wang BA, Yang L, Chen JJ, Zhu GC, Sun ML, Ge H, Wang R, Chapman DL, Tang F, Sun X, Xu GL. TET-mediated DNA demethylation controls gastrulation by regulating Lefty-Nodal signalling. Nature 2016; 538:528-532. [PMID: 27760115 DOI: 10.1038/nature20095] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 09/15/2016] [Indexed: 12/11/2022]
Abstract
Mammalian genomes undergo epigenetic modifications, including cytosine methylation by DNA methyltransferases (DNMTs). Oxidation of 5-methylcytosine by the Ten-eleven translocation (TET) family of dioxygenases can lead to demethylation. Although cytosine methylation has key roles in several processes such as genomic imprinting and X-chromosome inactivation, the functional significance of cytosine methylation and demethylation in mouse embryogenesis remains to be fully determined. Here we show that inactivation of all three Tet genes in mice leads to gastrulation phenotypes, including primitive streak patterning defects in association with impaired maturation of axial mesoderm and failed specification of paraxial mesoderm, mimicking phenotypes in embryos with gain-of-function Nodal signalling. Introduction of a single mutant allele of Nodal in the Tet mutant background partially restored patterning, suggesting that hyperactive Nodal signalling contributes to the gastrulation failure of Tet mutants. Increased Nodal signalling is probably due to diminished expression of the Lefty1 and Lefty2 genes, which encode inhibitors of Nodal signalling. Moreover, reduction in Lefty gene expression is linked to elevated DNA methylation, as both Lefty-Nodal signalling and normal morphogenesis are largely restored in Tet-deficient embryos when the Dnmt3a and Dnmt3b genes are disrupted. Additionally, a point mutation in Tet that specifically abolishes the dioxygenase activity causes similar morphological and molecular abnormalities as the null mutation. Taken together, our results show that TET-mediated oxidation of 5-methylcytosine modulates Lefty-Nodal signalling by promoting demethylation in opposition to methylation by DNMT3A and DNMT3B. These findings reveal a fundamental epigenetic mechanism featuring dynamic DNA methylation and demethylation crucial to regulation of key signalling pathways in early body plan formation.
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Affiliation(s)
- Hai-Qiang Dai
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Beijing 100049, China
- Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Chinese Academy of Science, Shanghai 200031, China
| | - Bang-An Wang
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Beijing 100049, China
- Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Chinese Academy of Science, Shanghai 200031, China
| | - Lu Yang
- Biodynamic Optical Imaging Center, College of Life Sciences, Peking University, Beijing 100871, China
- Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, Peking University, Beijing 100871, China
| | - Jia-Jia Chen
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Beijing 100049, China
- Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Chinese Academy of Science, Shanghai 200031, China
| | - Guo-Chun Zhu
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Beijing 100049, China
- Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Chinese Academy of Science, Shanghai 200031, China
| | - Mei-Ling Sun
- School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Hao Ge
- Biodynamic Optical Imaging Center, College of Life Sciences, Peking University, Beijing 100871, China
| | - Rui Wang
- Biodynamic Optical Imaging Center, College of Life Sciences, Peking University, Beijing 100871, China
- Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, Peking University, Beijing 100871, China
| | - Deborah L Chapman
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - Fuchou Tang
- Biodynamic Optical Imaging Center, College of Life Sciences, Peking University, Beijing 100871, China
- Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, Peking University, Beijing 100871, China
| | - Xin Sun
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Guo-Liang Xu
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Beijing 100049, China
- Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Chinese Academy of Science, Shanghai 200031, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
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Abstract
Two new blind species of Sinella are described from Guangdong Province, China. Sinella colubra sp. n. possesses minute smooth postlabial chaetae, long mucronal spine, and 4+4(5) lateral mac on Abd. IV, and can be distinguished from two closely related species by the postlabial chaetae and the dorsal macrochaetotaxy. Sinella zhangi sp. n. is also described and can be diagnosed by having minute labial chaeta r and postlabial chaetae X and X4, 5+5 mac on Abd. I, 4+4 central mac on Abd. II, and 4+4 central and 5+5 lateral mac on Abd. IV.
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Affiliation(s)
- Guo-Liang Xu
- School of Geographical Sciences, Guangzhou University, Guangzhou 510006, P. R. China
| | - Wei-Yu Chen
- Nanjing Plant Protection Station, No 169 Hanzhongmen Road, Nanjing 210036, P. R. China
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47
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Jiang SS, Li JJ, Li Y, He LJ, Wang QJ, Weng DS, Pan K, Liu Q, Zhao JJ, Pan QZ, Zhang XF, Tang Y, Chen CL, Zhang HX, Xu GL, Zeng YX, Xia JC. A novel pathogenic germline mutation in the adenomatous polyposis coli gene in a Chinese family with familial adenomatous coli. Oncotarget 2016; 6:27267-74. [PMID: 26311738 PMCID: PMC4694988 DOI: 10.18632/oncotarget.4776] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 07/17/2015] [Indexed: 11/30/2022] Open
Abstract
Familial adenomatous polyposis (FAP) is an autosomal dominant disease manifesting as colorectal cancer in middle-aged patients. Mutations of the adenomatous polyposis coli (APC) gene contribute to both FAP and sporadic or familial colorectal carcinogenesis. Here we describe the identification of the causative APC gene defects associated with FAP in a Chinese pedigree. All patients with FAP were diagnosed by their combination of clinical features, family history, colonoscopy, and pathology examinations. Blood samples were collected and genomic DNA was extracted. Mutation analysis of APC was conducted by targeted next-generation sequencing, long-range PCR and Sanger sequencing. A novel mutation in exon 14–15(c.1936-2148 del) and intron 14 of the APC gene was demonstrated in all FAP patients and was absent in unaffected family members. This novel deletion causing FAP in Chinese kindred expands the germline mutation spectrum of the APC gene in the Chinese population.
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Affiliation(s)
- Shan-Shan Jiang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Jian-Jun Li
- Department of Endoscopy, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Yin Li
- Department of Endoscopy, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Long-Jun He
- Department of Endoscopy, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Qi-Jing Wang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - D Sheng Weng
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Ke Pan
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Qing Liu
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Jing-Jing Zhao
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Qiu-Zhong Pan
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xiao-Fei Zhang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yan Tang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Chang-Long Chen
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Hong-Xia Zhang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Guo-Liang Xu
- Department of Endoscopy, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Yi-Xin Zeng
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Jian-Chuan Xia
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
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48
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Luo LN, He LJ, Gao XY, Huang XX, Shan HB, Luo GY, Li Y, Lin SY, Wang GB, Zhang R, Xu GL, Li JJ. Evaluation of preoperative staging for esophageal squamous cell carcinoma. World J Gastroenterol 2016; 22:6683-6689. [PMID: 27547011 PMCID: PMC4970469 DOI: 10.3748/wjg.v22.i29.6683] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 04/29/2016] [Accepted: 06/02/2016] [Indexed: 02/06/2023] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is known for its rapid progression and poor outcomes. China has the highest incidence and mortality in the world. Diagnoses made at early stages and accurate staging are associated with better outcomes, all of which can play a significant role in the selection of treatment protocols. ESCC is staged according to the widely accepted TNM system. Common imaging modalities used in staging ESCC before treatment include endoscopy, computed tomography (CT), positron emission tomography (PET) and magnetic resonance imaging (MRI). Endoscopic ultrasound is useful for staging tumor depth and nodal status. Narrow band imaging is valuable for early stage disease assessment. CT and PET provide additional valuable information regarding node and metastasis staging. The ability of MRI to delineate ESCC is continuously being improved and adds information regarding locoregional status to routine examinations.
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49
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Li JJ, He LJ, Luo GY, Liu LZ, Huang XX, Pan K, Xu GL. Fine-needle aspiration of a retropharyngeal lymph node guided by endoscopic ultrasonography. Endoscopy 2016; 47 Suppl 1 UCTN:E449-50. [PMID: 26465178 DOI: 10.1055/s-0034-1392652] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jian-Jun Li
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Long-Jun He
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Guang-Yu Luo
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Li-Zhi Liu
- Department of Imaging and Intervention Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Xin-Xin Huang
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Ke Pan
- Department of Experiment, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Guo-Liang Xu
- Department of Endoscopy, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
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50
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Yang J, Guo R, Wang H, Ye X, Zhou Z, Dan J, Wang H, Gong P, Deng W, Yin Y, Mao S, Wang L, Ding J, Li J, Keefe DL, Dawlaty MM, Wang J, Xu G, Liu L. Tet Enzymes Regulate Telomere Maintenance and Chromosomal Stability of Mouse ESCs. Cell Rep 2016; 15:1809-21. [PMID: 27184841 DOI: 10.1016/j.celrep.2016.04.058] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 02/24/2016] [Accepted: 04/14/2016] [Indexed: 02/05/2023] Open
Abstract
Ten-eleven translocation (Tet) family proteins convert 5-methylcytosine to 5-hydroxymethylcytosine. We show that mouse embryonic stem cells (ESCs) depleted of Tet1 and/or Tet2 by RNAi exhibit short telomeres and chromosomal instability, concomitant with reduced telomere recombination. Tet1 and Tet2 double-knockout ESCs also display short telomeres but to a lesser extent. Notably, Tet1/2/3 triple-knockout ESCs show heterogeneous telomere lengths and increased frequency of telomere loss and chromosomal fusion. Mechanistically, Tets depletion or deficiency increases Dnmt3b and decreases 5hmC levels, resulting in elevated methylation levels at sub-telomeres. Consistently, knockdown of Dnmt3b or addition of 2i (MAPK and GSK3β inhibitors), which also inhibits Dnmt3b, reduces telomere shortening, partially rescuing Tet1/2 deficiency. Interestingly, Tet1/2 double or Tet1/2/3 triple knockout in ESCs consistently upregulates Zscan4, which may counteract telomere shortening. Together, Tet enzymes play important roles in telomere maintenance and chromosomal stability of ESCs by modulating sub-telomeric methylation levels.
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Affiliation(s)
- Jiao Yang
- State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; Collaborative Innovation Center for Biotherapy, West China Hospital, Chengdu 610041, China
| | - Renpeng Guo
- State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; Collaborative Innovation Center for Biotherapy, West China Hospital, Chengdu 610041, China
| | - Hua Wang
- State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; Collaborative Innovation Center for Biotherapy, West China Hospital, Chengdu 610041, China
| | - Xiaoying Ye
- State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; Collaborative Innovation Center for Biotherapy, West China Hospital, Chengdu 610041, China
| | - Zhongcheng Zhou
- State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; Collaborative Innovation Center for Biotherapy, West China Hospital, Chengdu 610041, China
| | - Jiameng Dan
- State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; Collaborative Innovation Center for Biotherapy, West China Hospital, Chengdu 610041, China
| | - Haiying Wang
- State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; Collaborative Innovation Center for Biotherapy, West China Hospital, Chengdu 610041, China
| | - Peng Gong
- State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; Collaborative Innovation Center for Biotherapy, West China Hospital, Chengdu 610041, China
| | - Wei Deng
- State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; Collaborative Innovation Center for Biotherapy, West China Hospital, Chengdu 610041, China
| | - Yu Yin
- State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; Collaborative Innovation Center for Biotherapy, West China Hospital, Chengdu 610041, China
| | - ShiQing Mao
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Lingbo Wang
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Junjun Ding
- The Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jinsong Li
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
| | - David L Keefe
- Department of Obstetrics and Gynecology, New York University Langone Medical Center, New York, NY 10016, USA
| | - Meelad M Dawlaty
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Jianlong Wang
- The Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - GuoLiang Xu
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Lin Liu
- State Key Laboratory of Medicinal Chemical Biology, Department of Cell Biology and Genetics, College of Life Sciences, Nankai University, Tianjin 300071, China; Collaborative Innovation Center for Biotherapy, West China Hospital, Chengdu 610041, China.
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