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Han M, Lin S, Zhu B, Tong W, Xia E, Wang Y, Yang T, Zhang S, Wan X, Liu J, Niu Q, Zhu J, Bao S, Zhang Z. Dynamic DNA Methylation Regulates Season-Dependent Secondary Metabolism in the New Shoots of Tea Plants. J Agric Food Chem 2024; 72:3984-3997. [PMID: 38357888 DOI: 10.1021/acs.jafc.3c08568] [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] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Plant secondary metabolites are critical quality-conferring compositions of plant-derived beverages, medicines, and industrial materials. The accumulations of secondary metabolites are highly variable among seasons; however, the underlying regulatory mechanism remains unclear, especially in epigenetic regulation. Here, we used tea plants to explore an important epigenetic mark DNA methylation (5mC)-mediated regulation of plant secondary metabolism in different seasons. Multiple omics analyses were performed on spring and summer new shoots. The results showed that flavonoids and theanine metabolism dominated in the metabolic response to seasons in the new shoots. In summer new shoots, the genes encoding DNA methyltransferases and demethylases were up-regulated, and the global CG and CHG methylation reduced and CHH methylation increased. 5mC methylation in promoter and gene body regions influenced the seasonal response of gene expression; the amplitude of 5mC methylation was highly correlated with that of gene transcriptions. These differentially methylated genes included those encoding enzymes and transcription factors which play important roles in flavonoid and theanine metabolic pathways. The regulatory role of 5mC methylation was further verified by applying a DNA methylation inhibitor. These findings highlight that dynamic DNA methylation plays an important role in seasonal-dependent secondary metabolism and provide new insights for improving tea quality.
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Affiliation(s)
- Mengxue Han
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Shijia Lin
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Biying Zhu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Wei Tong
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
- Key Laboratory of Tea Biology and Tea Processing of Ministry of Agriculture and Rural Affairs, Hefei, Anhui 230036, China
- International Joint Research Laboratory of Tea Chemistry and Health Effects of Ministry of Education, Hefei, Anhui 230036, China
| | - Enhua Xia
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
- Key Laboratory of Tea Biology and Tea Processing of Ministry of Agriculture and Rural Affairs, Hefei, Anhui 230036, China
- International Joint Research Laboratory of Tea Chemistry and Health Effects of Ministry of Education, Hefei, Anhui 230036, China
| | - Yuanrong Wang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Tianyuan Yang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
- Key Laboratory of Tea Biology and Tea Processing of Ministry of Agriculture and Rural Affairs, Hefei, Anhui 230036, China
- International Joint Research Laboratory of Tea Chemistry and Health Effects of Ministry of Education, Hefei, Anhui 230036, China
| | - Shupei Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
- Key Laboratory of Tea Biology and Tea Processing of Ministry of Agriculture and Rural Affairs, Hefei, Anhui 230036, China
- International Joint Research Laboratory of Tea Chemistry and Health Effects of Ministry of Education, Hefei, Anhui 230036, China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
- Key Laboratory of Tea Biology and Tea Processing of Ministry of Agriculture and Rural Affairs, Hefei, Anhui 230036, China
- International Joint Research Laboratory of Tea Chemistry and Health Effects of Ministry of Education, Hefei, Anhui 230036, China
| | - Jianjun Liu
- College of Tea Sciences, Guizhou University, Guiyang 550025, China
| | - Qingfeng Niu
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Jianhua Zhu
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhaoliang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
- Key Laboratory of Tea Biology and Tea Processing of Ministry of Agriculture and Rural Affairs, Hefei, Anhui 230036, China
- International Joint Research Laboratory of Tea Chemistry and Health Effects of Ministry of Education, Hefei, Anhui 230036, China
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Yu JS, Hao J, Huang H, Zhao J, Prayson R, Bao S. Sema3C Signaling is an Alternative Activator of the Canonical WNT Pathway in Glioblastoma. Int J Radiat Oncol Biol Phys 2023; 117:S138. [PMID: 37784353 DOI: 10.1016/j.ijrobp.2023.06.545] [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] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Wnt signaling maintains normal and cancer stem cells. The Wnt pathway is frequently dysregulated in many cancers, underscoring it as a therapeutic target. Although Wnt inhibitors appear promising in many preclinical studies, they have failed uniformly in clinical trials. Molecular mechanisms of resistance are poorly defined. Further dissection of the precise mechanisms of Wnt pathway activation in specific tumor types is needed to develop new Wnt pathway inhibitors with less toxicity. Here, we identify an alternative activator of the Wnt pathway that may mediate resistance to upstream Wnt inhibition in glioblastoma. MATERIALS/METHODS Glioma stem-like cells (GSCs) were enriched in defined media. GSCs were transduced with lentiviruses to knockdown or overexpress Sema3C or Wnt pathway components. Cell viability, proliferation, apoptosis, and self-renewal were assessed. Expression of Sema3C and Wnt pathway components were assessed in GSCs, mouse models of GBM, and human glioblastoma by qPCR, Western blot, and/or immunostaining. Beta-catenin subcellular localization was assessed by cell fractionation and immunofluorescence. GSC-derived orthotopic models of GBM were used to assess the impact of genetic or pharmacologic inhibition of Sema3C or Wnt pathway components alone or in combination on tumor growth and animal survival. RESULTS The axonal guidance protein Sema3C promotes the tumorigenicity of GSCs through binding its NRP/PlxnD1 receptor complex leading to Rac1 activation. Sema3C signaling directs beta-catenin nuclear accumulation in a Rac1-dependent process, leading to transactivation of Wnt target genes. Sema3C-driven Wnt signaling occurred despite suppression of Wnt ligand secretion, suggesting that Sema3C may drive canonical Wnt signaling independent of Wnt ligand binding. In human glioblastoma, Sema3C expression and Wnt pathway activation were highly concordant. In a mouse model of glioblastoma, combined depletion of Sema3C and beta-catenin partner TCF1 extended animal survival more than single target inhibition alone. CONCLUSION Sema3C signaling may represent an alternative mechanism of WNT pathway activation even when WNT ligand-receptor interaction is inhibited. Since Sema3C is overexpressed in >85% glioblastoma and is used to maintain GSCs but not normal neural progenitor cells, this pathway may represent a major mechanism of Wnt pathway activation and resistance to upstream Wnt pathway inhibitors in GSCs. Our data provide a therapeutic strategy to achieve clinically significant Wnt pathway inhibition in GSCs potentially without the toxicity of currently available WNT inhibitors.
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Affiliation(s)
- J S Yu
- Department of Radiation Oncology, Taussig Cancer Center, Cleveland Clinic, Cleveland, OH
| | - J Hao
- Cleveland Clinic, Cleveland, OH
| | - H Huang
- Cleveland Clinic, Cleveland, OH
| | - J Zhao
- Cleveland Clinic, Cleveland, OH
| | | | - S Bao
- Center for Cancer Stem Cell Research, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
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Li Q, Jiao J, Heng Y, Lu Q, Zheng Y, Li H, Cai J, Mei M, Bao S. Prmt5 promotes ciliated cell specification of airway epithelial progenitors via transcriptional inhibition of Tp63. J Biol Chem 2023; 299:104964. [PMID: 37364687 PMCID: PMC10392137 DOI: 10.1016/j.jbc.2023.104964] [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: 01/25/2023] [Revised: 06/16/2023] [Accepted: 06/18/2023] [Indexed: 06/28/2023] Open
Abstract
The epithelium of the pulmonary airway is composed of several distinct cell types that differentiate from common progenitor cells to provide defense against environmental insults. Epigenetic mechanisms regulating lineage differentiation of airway epithelial progenitors remain poorly understood. Protein arginine methyltransferase 5 (Prmt5) is a predominant type II arginine methyltransferase that methylates >85% of symmetric arginine residues. Here, we provide evidence for the function of Prmt5 in promoting ciliated cell fate specification of airway epithelial progenitors. We show that lung epithelial-specific deletion of Prmt5 resulted in a complete loss of ciliated cells, an increased number of basal cells, and ecotopic-expressed Tp63-Krt5+ putative cells in the proximal airway. We further identified that transcription factor Tp63 is a direct target of Prmt5, and Prmt5 inhibited Tp63 transcription expression through H4R3 symmetric dimethylation (H4R3sme2). Moreover, inhibition of Tp63 expression in Prmt5-deficient tracheal progenitors could partially restore the ciliated cell deficient phenotype. Together, our data support a model where Prmt5-mediated H4R3sme2 represses Tp63 expression to promote ciliated cell fate specification of airway progenitors.
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Affiliation(s)
- Qiuling Li
- Institute of Health Sciences and Technology, Institutes of Physical Science and Information Technology, Anhui University, Hefei, China.
| | - Jie Jiao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Ya Heng
- Institute of Health Sciences and Technology, Institutes of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Qingshuang Lu
- Institute of Health Sciences and Technology, Institutes of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Yu Zheng
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Huijun Li
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Jun Cai
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
| | - Mei Mei
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China; Department of Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, Beijing, China.
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Li H, Zhu X, Yang Y, Wang W, Mao A, Li J, Bao S, Li J. Long-read sequencing: An effective method for genetic analysis of CYP21A2 variation in congenital adrenal hyperplasia. Clin Chim Acta 2023:117419. [PMID: 37276943 DOI: 10.1016/j.cca.2023.117419] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 05/09/2023] [Accepted: 06/02/2023] [Indexed: 06/07/2023]
Abstract
BACKGROUND The sequence similarity between CYP21A2 gene and its inactive pseudogene CYP21A1P, and copy number variation (CNV) caused by unequal crossover, make it challenging to characterize the CYP21A2 gene through traditional methods. This study aimed to evaluate the clinical utility of the long-read sequencing (LRS) method in carrier screening and genetic diagnosis of congenital adrenal hyperplasia (CAH) by comparing the efficiency of the LRS method with the conventional multiplex ligation-dependent probe amplification (MLPA) plus Sanger sequencing approaches in CYP21A2 analysis. METHODS In a retrospective study, full sequence analysis of the CYP21A2 and CYP21A1P was performed for three pedigrees through long-range locus-specific PCR followed by LRS based on the Pacific Biosciences (PacBio, California, USA) single-molecule real-time (SMRT) platform, and the results were compared with those obtained from next-generation sequencing (NGS)-based whole exome sequencing (WES) and the traditional methods of MLPA plus Sanger sequencing. RESULTS The LRS method successfully identified seven CYP21A2 variants , including three single nucleotide variants (NM_000500.9:c.1451G>C p.(Arg484Pro), c.293-13A/C>G (IVS2-13A/C>G), c.518T>A p.(Ile173Asn)), one 111-bp polynucleotide insertion, one set of 3'URT variants (NM_000500.9:c.*368T>C, c.*390A>G, c.*440C>T, c.*443T>C) and two types of chimeric genes and straightforwardly depicted the inheritance patterns of these variants within families. Moreover, the LRS method enabled us to determine the cis-trans configuration of multiple variants in one assay, without the need to analyze additional family samples. Compared with traditional methods, this LRS method can achieve a precise, comprehensive and intuitive result in the genetic diagnosis of 21-hydroxylase deficiency (21-OHD). CONCLUSION The LRS method is comprehensive in CYP21A2 analysis and intuitive in result presentation, which holds substantial promise in clinical application as a crucial tool for carrier screening and genetic diagnosis of CAH.
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Affiliation(s)
- Huijun Li
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Xiangyu Zhu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.
| | - Ying Yang
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Wanjun Wang
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Aiping Mao
- Berry Genomics Corporation, Beijing, 102200, China
| | - Jiaqi Li
- Berry Genomics Corporation, Beijing, 102200, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Jie Li
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.
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Chen Z, Lin S, Chen T, Han M, Yang T, Wang Y, Bao S, Shen Z, Wan X, Zhang Z. Haem Oxygenase 1 is a potential target for creating etiolated/albino tea plants ( Camellia sinensis) with high theanine accumulation. Hortic Res 2023; 10:uhac269. [PMID: 37533676 PMCID: PMC10390853 DOI: 10.1093/hr/uhac269] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 12/01/2022] [Indexed: 08/04/2023]
Abstract
Theanine content is highly correlated with sensory quality and health benefits of tea infusion. The tender shoots of etiolated and albino tea plants contain higher theanine than the normal green tea plants and are valuable materials for high quality green tea processing. However, why these etiolated or albino tea plants can highly accumulate theanine is largely unknown. In this study, we observed an Arabidopsis etiolated mutant hy1-100 (mutation in Haem Oxygenase 1, HO1) that accumulated higher levels of glutamine (an analog of theanine). We therefore identified CsHO1 in tea plants and found CsHO1 is conserved in amino acid sequences and subcellular localization with its homologs in other plants. Importantly, CsHO1 expression in the new shoots was much lower in an etiolated tea plants 'Huangkui' and an albino tea plant 'Huangshan Baicha' than that in normal green tea plants. The expression levels of CsHO1 were negatively correlated with theanine contents in these green, etiolated and albino shoots. Moreover, CsHO1 expression levels in various organs and different time points were also negatively correlated with theanine accumulation. The hy1-100 was hypersensitive to high levels of theanine and accumulated more theanine under theanine feeding, and these phenotypes were rescued by the expression of CsHO1 in this mutant. Transient knockdown CsHO1 expression in the new shoots of tea plant using antisense oligonucleotides (asODN) increased theanine accumulation. Collectively, these results demonstrated CsHO1 negatively regulates theanine accumulation in tea plants, and that low expression CsHO1 likely contributes to the theanine accumulation in etiolated/albino tea plants.
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Affiliation(s)
| | | | - Tingting Chen
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Mengxue Han
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Tianyuan Yang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Yan Wang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhougao Shen
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
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Wang J, Huang X, Zheng D, Li Q, Mei M, Bao S. PRMT5 determines the pattern of polyploidization and prevents liver from cirrhosis and carcinogenesis. J Genet Genomics 2023; 50:87-98. [PMID: 35500745 DOI: 10.1016/j.jgg.2022.04.008] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 04/12/2022] [Accepted: 04/12/2022] [Indexed: 11/25/2022]
Abstract
Human hepatocellular carcinoma (HCC) occurs almost exclusively in cirrhotic livers. Here, we report that hepatic loss of protein arginine methyltransferase 5 (PRMT5) in mice is sufficient to cause cirrhosis and HCC in a clinically relevant way. Furthermore, pathological polyploidization induced by hepatic loss of PRMT5 promotes liver cirrhosis and hepatic tumorigenesis in aged liver. The loss of PRMT5 leads to hyper-accumulation of P21 and endoreplication-dependent formation of pathological mono-nuclear polyploid hepatocytes. PRMT5 and symmetric dimethylation at histone H4 arginine 3 (H4R3me2s) directly associate with chromatin of P21 to suppress its transcription. More importantly, loss of P21 rescues the pathological mono-nuclear polyploidy and prevents PRMT5-deficiency-induced liver cirrhosis and HCC. Thus, our results indicate that PRMT5-mediated symmetric dimethylation at histone H4 arginine 3 (H4R3me2s) is crucial for preventing pathological polyploidization, liver cirrhosis and tumorigenesis in mouse liver.
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Affiliation(s)
- Jincheng Wang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.
| | - Xiang Huang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; School of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Daoshan Zheng
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; School of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiuling Li
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Mei Mei
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; School of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
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Shu M, Hong D, Lin H, Zhang J, Luo Z, Du Y, Sun Z, Yin M, Yin Y, Liu L, Bao S, Liu Z, Lu F, Huang J, Dai J. Single-cell chromatin accessibility identifies enhancer networks driving gene expression during spinal cord development in mouse. Dev Cell 2022; 57:2761-2775.e6. [PMID: 36495874 DOI: 10.1016/j.devcel.2022.11.011] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 06/22/2022] [Accepted: 11/16/2022] [Indexed: 12/14/2022]
Abstract
Spinal cord development is precisely orchestrated by spatiotemporal gene regulatory programs. However, the underlying epigenetic mechanisms remain largely elusive. Here, we profiled single-cell chromatin accessibility landscapes in mouse neural tubes spanning embryonic days 9.5-13.5. We identified neuronal-cell-cluster-specific cis-regulatory elements in neural progenitors and neurons. Furthermore, we applied a novel computational method, eNet, to build enhancer networks by integrating single-cell chromatin accessibility and gene expression data and identify the hub enhancers within enhancer networks. It was experimentally validated in vivo for Atoh1 that knockout of the hub enhancers, but not the non-hub enhancers, markedly decreased Atoh1 expression and reduced dp1/dI1 cells. Together, our work provides insights into the epigenetic regulation of spinal cord development and a proof-of-concept demonstration of enhancer networks as a general mechanism in transcriptional regulation.
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Affiliation(s)
- Muya Shu
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Danni Hong
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Hongli Lin
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Jixiang Zhang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhengnan Luo
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Beijing 100101, China
| | - Yi Du
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100101, China
| | - Zheng Sun
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100101, China
| | - Man Yin
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100101, China
| | - Yanyun Yin
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Lifang Liu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100101, China
| | - Zhiyong Liu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Beijing 100101, China
| | - Falong Lu
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100101, China.
| | - Jialiang Huang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China; National Institute for Data Science in Health and Medicine, Xiamen University, Xiamen, Fujian 361102, China.
| | - Jianwu Dai
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100101, China.
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Mei M, Bao S. Generation of GM130 Conditional Knockout Mouse. Methods Mol Biol 2022; 2557:61-81. [PMID: 36512210 DOI: 10.1007/978-1-0716-2639-9_6] [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] [Indexed: 12/15/2022]
Abstract
The Golgi apparatus is a common and highly dynamic organelle in eukaryotic cells. It plays an important role in secretory trafficking and cargo modifications. Increasing evidence suggests that structural changes and functional disorders of the Golgi apparatus are involved in many human diseases, but whether Golgi dysfunction is a causal factor in regard to the progression of these diseases remains unknown. GM130 has been postulated to play roles in Golgi stack formation and vesicular transport based on studies on cultured cells and in vitro reconstitutions. To define the role of GM130 in animal, a GM130 knockout mouse has recently been created. Based on the principle of homologous recombination, the GM130 conditional knockout mouse model was established through gene targeting, stem cell screening, and blastocyst injection. Such model has been successfully applied for studies of physiological functions of GM130 and Golgi apparatus at the cellular and animal levels.
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Affiliation(s)
- Mei Mei
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.
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Liefaard M, Bhaskaran R, Bijl Y, Israeli D, Jong-Raadsen S, van Montfort E, Bao S, Mee S, Cavness T, Gallagher A, Falk J, Piel T, Witteveen A, van der Voort A, Vonk S, Lips E, Sonke G, Kleijn M, Glas A, Mittempergher L. 161P MammaPrint and BluePrint diagnostic tests can be robustly assessed on Whole-Transcriptome NGS platform. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Liu C, Zou W, Nie D, Li S, Duan C, Zhou M, Lai P, Yang S, Ji S, Li Y, Mei M, Bao S, Jin Y, Pan J. Loss of PRMT7 reprograms glycine metabolism to selectively eradicate leukemia stem cells in CML. Cell Metab 2022; 34:818-835.e7. [PMID: 35508169 DOI: 10.1016/j.cmet.2022.04.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 02/14/2022] [Accepted: 04/11/2022] [Indexed: 02/08/2023]
Abstract
Our group has reported previously on the role of various members of the protein arginine methyltransferase (PRMT) family, which are involved in epigenetic regulation, in the progression of leukemia. Here, we explored the role of PRMT7, given its unique function within the PRMT family, in the maintenance of leukemia stem cells (LSCs) in chronic myeloid leukemia (CML). Genetic loss of Prmt7, and the development and testing of a small-molecule specific inhibitor of PRMT7, showed that targeting PRMT7 delayed leukemia development and impaired self-renewal of LSCs in a CML mouse model and in primary CML CD34+ cells from humans without affecting normal hematopoiesis. Mechanistically, loss of PRMT7 resulted in reduced expressions of glycine decarboxylase, leading to the reprograming of glycine metabolism to generate methylglyoxal, which is detrimental to LSCs. These findings link histone arginine methylation with glycine metabolism, while suggesting PRMT7 as a potential therapeutic target for the eradication of LSCs in CML.
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Affiliation(s)
- Chang Liu
- Jinan University Institute of Tumor Pharmacology, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Waiyi Zou
- Department of Hematology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Danian Nie
- Department of Hematology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Shuyi Li
- Jinan University Institute of Tumor Pharmacology, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Chen Duan
- Jinan University Institute of Tumor Pharmacology, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Min Zhou
- Jinan University Institute of Tumor Pharmacology, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Peilong Lai
- Department of Hematology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Shengyong Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Sen Ji
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yangqiu Li
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Mei Mei
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yanli Jin
- Jinan University Institute of Tumor Pharmacology, College of Pharmacy, Jinan University, Guangzhou 510632, China.
| | - Jingxuan Pan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China.
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11
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Schuler E, Uygun S, Mittempergher L, Pronin D, Mee S, Bao S, Cavness T, Witteveen A, Glas A. 234P Equivalence of NGS-based MammaPrint 70-gene signature risk of recurrence and BluePrint 80-gene signature of molecular subtyping tests to the centralized microarray tests. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.03.256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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12
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Zhu B, Guo J, Dong C, Li F, Qiao S, Lin S, Yang T, Wu Y, Bao S, Lucas WJ, Zhang Z. CsAlaDC and CsTSI work coordinately to determine theanine biosynthesis in tea plants (Camellia sinensis L.) and confer high levels of theanine accumulation in a non-tea plant. Plant Biotechnol J 2021; 19:2395-2397. [PMID: 34626137 PMCID: PMC8633503 DOI: 10.1111/pbi.13722] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 09/17/2021] [Accepted: 10/02/2021] [Indexed: 05/13/2023]
Affiliation(s)
- Biying Zhu
- State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefeiAnhuiChina
| | - Jiayi Guo
- State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefeiAnhuiChina
| | - Chunxia Dong
- State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefeiAnhuiChina
| | - Fang Li
- State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefeiAnhuiChina
- College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Siming Qiao
- State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefeiAnhuiChina
| | - Shijia Lin
- State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefeiAnhuiChina
| | - Tianyuan Yang
- State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefeiAnhuiChina
| | - Yingling Wu
- State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefeiAnhuiChina
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
- School of Life SciencesUniversity of Chinese Academy of SciencesBeijingChina
| | - William J. Lucas
- Department of Plant BiologyCollege of Biological SciencesUniversity of CaliforniaDavisCAUSA
| | - Zhaoliang Zhang
- State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefeiAnhuiChina
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13
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Zhi F, Wang YY, Ma YP, Zhang W, Song LJ, Chen JM, Wei YP, Li R, Tian J, Bao S. [Systemic light chain amyloidosis with the manifestation of recurrent spontaneous liver rupture: a case report]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:963. [PMID: 35045662 PMCID: PMC8763595 DOI: 10.3760/cma.j.issn.0253-2727.2021.10.015-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Indexed: 06/14/2023]
Affiliation(s)
- F Zhi
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, First Affiliated Hospital of Northwest Minzu University, Yinchuan 750021, China
| | - Y Y Wang
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, First Affiliated Hospital of Northwest Minzu University, Yinchuan 750021, China
| | - Y P Ma
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, First Affiliated Hospital of Northwest Minzu University, Yinchuan 750021, China
| | - W Zhang
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, First Affiliated Hospital of Northwest Minzu University, Yinchuan 750021, China
| | - L J Song
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, First Affiliated Hospital of Northwest Minzu University, Yinchuan 750021, China
| | - J M Chen
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, First Affiliated Hospital of Northwest Minzu University, Yinchuan 750021, China
| | - Y P Wei
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, First Affiliated Hospital of Northwest Minzu University, Yinchuan 750021, China
| | - R Li
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, First Affiliated Hospital of Northwest Minzu University, Yinchuan 750021, China
| | - J Tian
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, First Affiliated Hospital of Northwest Minzu University, Yinchuan 750021, China
| | - S Bao
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, First Affiliated Hospital of Northwest Minzu University, Yinchuan 750021, China
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14
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Zhang W, Jiang LJ, Ma YP, Bao S, Chen JM, Li R, Ye XP, Wei YP, Zhi F, Tian J, Li YQ, Song LJ. [Systemic light chain amyloidosis with amyloid myopathy as the main manifestation: a case report]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:768. [PMID: 34753233 PMCID: PMC8607040 DOI: 10.3760/cma.j.issn.0253-2727.2021.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- W Zhang
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - L J Jiang
- Ningxia Geriatric Center, People's Hospital of Ningxia Hui Autonomous Region, Yinchuang 750021, China
| | - Y P Ma
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - S Bao
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - J M Chen
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - R Li
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - X P Ye
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - Y P Wei
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - F Zhi
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - J Tian
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - Y Q Li
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - L J Song
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
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15
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He H, Chen J, Zhao J, Zhang P, Qiao Y, Wan H, Wang J, Mei M, Bao S, Li Q. PRMT7 targets of Foxm1 controls alveolar myofibroblast proliferation and differentiation during alveologenesis. Cell Death Dis 2021; 12:841. [PMID: 34497269 PMCID: PMC8426482 DOI: 10.1038/s41419-021-04129-1] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/23/2021] [Indexed: 02/05/2023]
Abstract
Although aberrant alveolar myofibroblasts (AMYFs) proliferation and differentiation are often associated with abnormal lung development and diseases, such as bronchopulmonary dysplasia (BPD), chronic obstructive pulmonary disease (COPD), and idiopathic pulmonary fibrosis (IPF), epigenetic mechanisms regulating proliferation and differentiation of AMYFs remain poorly understood. Protein arginine methyltransferase 7 (PRMT7) is the only reported type III enzyme responsible for monomethylation of arginine residue on both histone and nonhistone substrates. Here we provide evidence for PRMT7's function in regulating AMYFs proliferation and differentiation during lung alveologenesis. In PRMT7-deficient mice, we found reduced AMYFs proliferation and differentiation, abnormal elastin deposition, and failure of alveolar septum formation. We further shown that oncogene forkhead box M1 (Foxm1) is a direct target of PRMT7 and that PRMT7-catalyzed monomethylation at histone H4 arginine 3 (H4R3me1) directly associate with chromatin of Foxm1 to activate its transcription, and thereby regulate of cell cycle-related genes to inhibit AMYFs proliferation and differentiation. Overexpression of Foxm1 in isolated myofibroblasts (MYFs) significantly rescued PRMT7-deficiency-induced cell proliferation and differentiation defects. Thus, our results reveal a novel epigenetic mechanism through which PRMT7-mediated histone arginine monomethylation activates Foxm1 transcriptional expression to regulate AMYFs proliferation and differentiation during lung alveologenesis and may represent a potential target for intervention in pulmonary diseases.
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Affiliation(s)
- Huacheng He
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, P.R. China
| | - Jilin Chen
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, P.R. China
| | - Jian Zhao
- Department of Health Sciences, Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Peizhun Zhang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, P.R. China
| | - Yulong Qiao
- Department of Health Sciences, Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Huajing Wan
- Laboratory of Pulmonary Immunology and Inflammation, Department of Respiratory and Critical Care Medicine, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P.R. China
| | - Jincheng Wang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, P.R. China
| | - Mei Mei
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, P.R. China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, P.R. China.
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100101, P.R. China.
| | - Qiuling Li
- Department of Health Sciences, Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China.
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16
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Hua Y, Sun C, Jiang M, Yang F, Wang X, Bao S, Wu X, Huang X, Li W, Yin Y. 290P Treatment with tyrosine kinase inhibitors (TKIs) based therapy in trastuzumab emtansine (T-DM1) resistant HER2-positive metastatic breast cancer: A real-world study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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17
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Chen M, Dong F, Chen M, Shen Z, Wu H, Cen C, Cui X, Bao S, Gao F. PRMT5 regulates ovarian follicle development by facilitating Wt1 translation. eLife 2021; 10:68930. [PMID: 34448450 PMCID: PMC8483736 DOI: 10.7554/elife.68930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 03/30/2021] [Accepted: 08/26/2021] [Indexed: 01/20/2023] Open
Abstract
Protein arginine methyltransferase 5 (Prmt5) is the major type II enzyme responsible for symmetric dimethylation of arginine. Here, we found that PRMT5 was expressed at high level in ovarian granulosa cells of growing follicles. Inactivation of Prmt5 in granulosa cells resulted in aberrant follicle development and female infertility. In Prmt5-knockout mice, follicle development was arrested with disorganized granulosa cells in which WT1 expression was dramatically reduced and the expression of steroidogenesis-related genes was significantly increased. The premature differentiated granulosa cells were detached from oocytes and follicle structure was disrupted. Mechanism studies revealed that Wt1 expression was regulated by PRMT5 at the protein level. PRMT5 facilitated IRES-dependent translation of Wt1 mRNA by methylating HnRNPA1. Moreover, the upregulation of steroidogenic genes in Prmt5-deficient granulosa cells was repressed by Wt1 overexpression. These results demonstrate that PRMT5 participates in granulosa cell lineage maintenance by inducing Wt1 expression. Our study uncovers a new role of post-translational arginine methylation in granulosa cell differentiation and follicle development. Infertility in women can be caused by many factors, such as defects in the ovaries. An important part of the ovaries for fertility are internal structures called follicles, which house early forms of egg cells. A follicle grows and develops until the egg is finally released from the ovary into the fallopian tube, where the egg can then be fertilised. In the follicle, an egg is surrounded by other types of cells, such as granulosa cells. The egg and neighbouring cells must maintain healthy contacts with each other, otherwise the follicle can stop growing and developing, potentially causing infertility. The development of a follicle depends on an array of proteins. For example, the transcription factor WT1 controls protein levels by activating other genes and their proteins and is produced in high numbers by granulosa cells at the beginning of follicle development. Although WT1 levels dip towards the later stages of follicle development, insufficient levels can lead to defects. So far, it has been unclear how levels of WT1in granulose cells are regulated. Chen, Dong et al. studied mouse follicles to reveal more about the role of WT1 in follicle development. The researchers measured protein levels in mouse granulosa cells as the follicles developed, and discovered elevated levels of PRMT5, a protein needed for egg cells to form and survive in the follicles. Blocking granulosa cells from producing PRMT5 led to abnormal follicles and infertility in mice. Moreover, mice that had been engineered to lack PRMT5 developed abnormal follicles, where the egg and surrounding granulosa cells were not attached to each other, and the granulosa cells had low levels of WT1. Further experiments revealed that PRMT5 controlled WT1 levels by adding small molecules called methyl groups to another regulatory protein called HnRNPA1. The addition of methyl groups to genes or their proteins is an important modification that takes place in many processes within a cell. Chen, Dong et al. reveal that this activity also plays a key role in maintaining healthy follicle development in mice, and that PRMT5 is necessary for controlling WT1. Identifying all of the intricate mechanism involved in regulating follicle development is important for finding ways to combat infertility.
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Affiliation(s)
- Min Chen
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.,Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Fangfang Dong
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Min Chen
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Zhiming Shen
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Haowei Wu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Changhuo Cen
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Xiuhong Cui
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Fei Gao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.,Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
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18
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Li F, Dong C, Yang T, Bao S, Fang W, Lucas WJ, Zhang Z. The tea plant CsLHT1 and CsLHT6 transporters take up amino acids, as a nitrogen source, from the soil of organic tea plantations. Hortic Res 2021; 8:178. [PMID: 34333546 PMCID: PMC8325676 DOI: 10.1038/s41438-021-00615-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 04/09/2021] [Accepted: 05/20/2021] [Indexed: 06/13/2023]
Abstract
Organic tea is more popular than conventional tea that originates from fertilized plants. Amino acids inorganic soils constitute a substantial pool nitrogen (N) available for plants. However, the amino-acid contents in soils of tea plantations and how tea plants take up these amino acids remain largely unknown. In this study, we show that the amino-acid content in the soil of an organic tea plantation is significantly higher than that of a conventional tea plantation. Glutamate, alanine, valine, and leucine were the most abundant amino acids in the soil of this tea plantation. When 15N-glutamate was fed to tea plants, it was efficiently absorbed and significantly increased the contents of other amino acids in the roots. We cloned seven CsLHT genes encoding amino-acid transporters and found that the expression of CsLHT1, CsLHT2, and CsLHT6 in the roots significantly increased upon glutamate feeding. Moreover, the expression of CsLHT1 or CsLHT6 in a yeast amino-acid uptake-defective mutant, 22∆10α, enabled growth on media with amino acids constituting the sole N source. Amino-acid uptake assays indicated that CsLHT1 and CsLHT6 are H+-dependent high- and low-affinity amino-acid transporters, respectively. We further demonstrated that CsLHT1 and CsLHT6 are highly expressed in the roots and are localized to the plasma membrane. Moreover, overexpression of CsLHT1 and CsLHT6 in Arabidopsis significantly improved the uptake of exogenously supplied 15N-glutamate and 15N-glutamine. Taken together, our findings are consistent with the involvement of CsLHT1 and CsLHT6 in amino-acid uptake from the soil, which is particularly important for tea plants grown inorganic tea plantations.
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Affiliation(s)
- Fang Li
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, 230036, China
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Chunxia Dong
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, 230036, China
| | - Tianyuan Yang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, 230036, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Wanping Fang
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - William J Lucas
- Department of Plant Biology, College of Biological Sciences, University of California, Davis, CA, 95616, USA
| | - Zhaoliang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, 230036, China.
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19
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Lam SM, Zhang C, Wang Z, Ni Z, Zhang S, Yang S, Huang X, Mo L, Li J, Lee B, Mei M, Huang L, Shi M, Xu Z, Meng FP, Cao WJ, Zhou MJ, Shi L, Chua GH, Li B, Cao J, Wang J, Bao S, Wang Y, Song JW, Zhang F, Wang FS, Shui G. A multi-omics investigation of the composition and function of extracellular vesicles along the temporal trajectory of COVID-19. Nat Metab 2021; 3:909-922. [PMID: 34158670 DOI: 10.1038/s42255-021-00425-4] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 06/09/2021] [Indexed: 12/14/2022]
Abstract
Exosomes represent a subtype of extracellular vesicle that is released through retrograde transport and fusion of multivesicular bodies with the plasma membrane1. Although no perfect methodologies currently exist for the high-throughput, unbiased isolation of pure plasma exosomes2,3, investigation of exosome-enriched plasma fractions of extracellular vesicles can confer a glimpse into the endocytic pathway on a systems level. Here we conduct high-coverage lipidomics with an emphasis on sterols and oxysterols, and proteomic analyses of exosome-enriched extracellular vesicles (EVs hereafter) from patients at different temporal stages of COVID-19, including the presymptomatic, hyperinflammatory, resolution and convalescent phases. Our study highlights dysregulated raft lipid metabolism that underlies changes in EV lipid membrane anisotropy that alter the exosomal localization of presenilin-1 (PS-1) in the hyperinflammatory phase. We also show in vitro that EVs from different temporal phases trigger distinct metabolic and transcriptional responses in recipient cells, including in alveolar epithelial cells, which denote the primary site of infection, and liver hepatocytes, which represent a distal secondary site. In comparison to the hyperinflammatory phase, EVs from the resolution phase induce opposing effects on eukaryotic translation and Notch signalling. Our results provide insights into cellular lipid metabolism and inter-tissue crosstalk at different stages of COVID-19 and are a resource to increase our understanding of metabolic dysregulation in COVID-19.
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Affiliation(s)
- Sin Man Lam
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- LipidALL Technologies Company Limited, Changzhou, China
| | - Chao Zhang
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
| | - Zehua Wang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Zhen Ni
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Shaohua Zhang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Siyuan Yang
- Laboratory of Infectious Diseases Center, Beijing Ditan Hospital Capital Medical University, Beijing, China
| | - Xiahe Huang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Lesong Mo
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Jie Li
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Bernett Lee
- Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Mei Mei
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Lei Huang
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
| | - Ming Shi
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
| | - Zhe Xu
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
| | - Fan-Ping Meng
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
| | - Wen-Jing Cao
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
- Department of Clinical Medicine, Bengbu Medical College, Anhui, China
| | - Ming-Ju Zhou
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
- Department of Clinical Medicine, Bengbu Medical College, Anhui, China
| | - Lei Shi
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
| | - Gek Huey Chua
- LipidALL Technologies Company Limited, Changzhou, China
| | - Bowen Li
- LipidALL Technologies Company Limited, Changzhou, China
| | - Jiabao Cao
- University of the Chinese Academy of Sciences, Beijing, China
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Jun Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Yingchun Wang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Jin-Wen Song
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China.
| | - Fujie Zhang
- The Clinical and Research Center for Infectious Diseases, Beijing Ditan Hospital Capital Medical University, Beijing, China.
| | - Fu-Sheng Wang
- Department of Infectious Diseases, Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China.
| | - Guanghou Shui
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.
- University of the Chinese Academy of Sciences, Beijing, China.
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20
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Yang T, Xie Y, Lu X, Yan X, Wang Y, Ma J, Cheng X, Lin S, Bao S, Wan X, Lucas WJ, Zhang Z. Shading Promoted Theanine Biosynthesis in the Roots and Allocation in the Shoots of the Tea Plant ( Camellia sinensis L.) Cultivar Shuchazao. J Agric Food Chem 2021; 69:4795-4803. [PMID: 33861578 DOI: 10.1021/acs.jafc.1c00641] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Shading was thought as an effective approach to increase theanine in harvested tea shoots. Previous studies offered conflicting findings, perhaps since the integration of theanine metabolism and transport in different tissues was not considered. Theanine is synthesized primarily in the roots and is then transported, via the vascular system, to new vegetative tissues. Here, we found that theanine increased in the stem, was reduced in the leaf, and remained stable in the roots, under shading conditions. Notably, in tea roots, shading significantly increased ethylamine and activated the theanine biosynthesis pathway and theanine transporter genes. Furthermore, shading significantly increased the expression of theanine transporter genes, CsAAP2/4/5/8, in the stem, while decreasing the expression of CsAAP1/2/4/5/6 in the leaf, in accordance with shading effects on theanine levels in these tissues. These findings reveal that shading of tea plants promotes theanine biosynthesis and allocation in different tissues, processes which appear to involve the theanine biosynthesis pathway enzymes and AAP family of theanine transporters.
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Affiliation(s)
- Tianyuan Yang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Yunxia Xie
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Xin Lu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Xiaomei Yan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Yan Wang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Jingzhen Ma
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Xunmin Cheng
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Shijia Lin
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - William J Lucas
- Department of Plant Biology, College of Biological Sciences, University of California, Davis, California 95616, United States
| | - Zhaoliang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
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21
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Zhang W, Bao S, Jiang LJ, Ma YP. [A case of familial erythrocytosis type 2 caused by VHL gene mutation]. Zhonghua Xue Ye Xue Za Zhi 2021; 41:1047-1049. [PMID: 33445856 PMCID: PMC7840559 DOI: 10.3760/cma.j.issn.0253-2727.2020.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- W Zhang
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - S Bao
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - L J Jiang
- Ningxia Geriatric Center, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - Y P Ma
- Department of Hematology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750021, China
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22
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Tian L, Zhang D, Bao S, Nie P, Hao D, Liu Y, Zhang J, Wang H. Radiomics-based machine-learning method for prediction of distant metastasis from soft-tissue sarcomas. Clin Radiol 2020; 76:158.e19-158.e25. [PMID: 33293024 DOI: 10.1016/j.crad.2020.08.038] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 08/26/2020] [Indexed: 12/15/2022]
Abstract
AIM To construct and validate a radiomics-based machine-learning method for preoperative prediction of distant metastasis (DM) from soft-tissue sarcoma. MATERIALS AND METHODS Seventy-seven soft-tissue sarcomas were divided into a training set (n=54) and a validation set (n=23). The performance of three feature selection methods (ReliefF, least absolute shrinkage and selection operator [LASSO], and regularised discriminative feature selection for unsupervised learning [UDFS]) and four classifiers, random forest (RF), logistic regression (LOG), K nearest neighbour (KNN), and support vector machines (SVMs), were compared for predicting the likelihood of DM. To counter the imbalance in the frequencies of DM, each machine-learning method was trained first without subsampling, then with the synthetic minority oversampling technique (SMOTE). The performance of the radiomics model was assessed using area under the receiver-operating characteristic curve (AUC) and accuracy (ACC) values. RESULTS The performance of the LASSO and SVM algorithm combination used with SMOTE was superior to that of the algorithm combination alone. The combination of SMOTE with feature screening by LASSO and SVM classifiers had an AUC of 0.9020 and ACC of 91.30% in the validation dataset. CONCLUSION A machine-learning model based on radiomics was favourable for predicting the likelihood of DM from soft-tissue sarcoma. This will help decide treatment strategies.
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Affiliation(s)
- L Tian
- Department of Hepatopancreatobiliary & Retroperitoneal Tumour Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - D Zhang
- School of Mechanical, Electrical & Information Engineering, Shandong University Weihai, Shandong, China
| | - S Bao
- Department of Radiology, Qingdao Municipal Hospital, Shandong, China
| | - P Nie
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - D Hao
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Y Liu
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China; Qingdao Malvern College, Qingdao, Shandong, China
| | - J Zhang
- Department of General Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
| | - H Wang
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
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23
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Hua Y, Yang F, Yang Y, Bao S, Sun C, Yan X, Zeng T, Jiang M, Huang X, Wu H, Li J, Li W, Yin Y. 50P Efficacy and safety analysis of pyrotinib in lapatinib resistant HER2-positive metastatic breast cancer: A retrospective study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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24
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Chen M, Wang Y, Lin L, Dong F, Wu H, Bao S, Gao F. PRMT7 is involved in regulation of germ cell proliferation during embryonic stage. Biochem Biophys Res Commun 2020; 533:938-944. [PMID: 33008598 DOI: 10.1016/j.bbrc.2020.09.099] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 09/15/2020] [Accepted: 09/23/2020] [Indexed: 11/26/2022]
Abstract
Arginine methylation is one of the most important post-translational modifications which is catalyzed by protein arginine methyltransferases (PRMTs). Previous studies have demonstrated that Prmt5 plays important role in germ cell development. Prmt7 is the only family member responsible for mono-methylation of arginine residue. However, whether Prmt7 is also involved in germ cell development remains unclear. In this study, we find that PRMT7 is abundantly expressed in the male germ cells during embryonic stage (from E10.5). Depletion of Prmt7 results in the defect of germ cell proliferation during embryonic stage and the number of primordial germ cells is significantly reduced in Prmt7-/- mice at E11.5. We also find that the size of testes is reduced in Prmt7-/- mice at P5 with reduced germ cell number and the diameter of seminiferous tubules. Further study reveals that the expression of BMPs and TGF-β singling pathway is significantly changed in germ cells of Prmt7-/- mice at E12.5. However, no defect of testes development is observed in adult Prmt7-/flox; Mvh-Cre mice. Collectively, this study demonstrates that Prmt7 plays roles in male germ cell proliferation during embryonic stages and it is not required for germ cell development postnatally.
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Affiliation(s)
- Min Chen
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yanbo Wang
- College of Life Sciences and Food Sciences, Inner Mongolia University for Nationalities, Tongliao, 028000, China
| | - Limei Lin
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, China
| | - Fangfang Dong
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, China
| | - Haowei Wu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Fei Gao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, China.
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25
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Wang X, Qian T, Bao S, Zhao H, Xing Z, Gao H, Li Y, Wang J, Zhang M, X. Meng, Wang C, Liu J, Zhou M, Wang X. 147P Exosomes microRNA sequencing identifies miR-363-5p as non-invasive biomarker of axillary lymph node metastasis and prognosis in breast cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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26
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Jin H, Du Z, Zhang Y, Antal J, Xia Z, Wang Y, Gao Y, Zhao X, Han X, Cheng Y, Shen Q, Zhang K, Elder RE, Benko Z, Fenyvuesvolgyi C, Li G, Rebello D, Li J, Bao S, Zhao RY, Wang D. A distinct class of plant and animal viral proteins that disrupt mitosis by directly interrupting the mitotic entry switch Wee1-Cdc25-Cdk1. Sci Adv 2020; 6:eaba3418. [PMID: 32426509 PMCID: PMC7220342 DOI: 10.1126/sciadv.aba3418] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 11/25/2019] [Accepted: 03/04/2020] [Indexed: 06/11/2023]
Abstract
Many animal viral proteins, e.g., Vpr of HIV-1, disrupt host mitosis by directly interrupting the mitotic entry switch Wee1-Cdc25-Cdk1. However, it is unknown whether plant viruses may use this mechanism in their pathogenesis. Here, we report that the 17K protein, encoded by barley yellow dwarf viruses and related poleroviruses, delays G2/M transition and disrupts mitosis in both host (barley) and nonhost (fission yeast, Arabidopsis thaliana, and tobacco) cells through interrupting the function of Wee1-Cdc25-CDKA/Cdc2 via direct protein-protein interactions and alteration of CDKA/Cdc2 phosphorylation. When ectopically expressed, 17K disrupts the mitosis of cultured human cells, and HIV-1 Vpr inhibits plant cell growth. Furthermore, 17K and Vpr share similar secondary structural feature and common amino acid residues required for interacting with plant CDKA. Thus, our work reveals a distinct class of mitosis regulators that are conserved between plant and animal viruses and play active roles in viral pathogenesis.
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Affiliation(s)
- Huaibing Jin
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- College of Agronomy and State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Zhiqiang Du
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yanjing Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Judit Antal
- Children’s Memorial Institute for Education and Research, Northwestern University Feinberg School of Medicine, Chicago, IL 60614, USA
| | - Zongliang Xia
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yan Wang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yang Gao
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiaoge Zhao
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xinyun Han
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yanjun Cheng
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Qianhua Shen
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Kunpu Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
- College of Agronomy and State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Robert E. Elder
- Children’s Memorial Institute for Education and Research, Northwestern University Feinberg School of Medicine, Chicago, IL 60614, USA
| | - Zsigmond Benko
- Children’s Memorial Institute for Education and Research, Northwestern University Feinberg School of Medicine, Chicago, IL 60614, USA
| | - Csaba Fenyvuesvolgyi
- Children’s Memorial Institute for Education and Research, Northwestern University Feinberg School of Medicine, Chicago, IL 60614, USA
| | - Ge Li
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Dionne Rebello
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Jing Li
- State Key Laboratory of Molecular and Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Shilai Bao
- State Key Laboratory of Molecular and Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Richard Y. Zhao
- Children’s Memorial Institute for Education and Research, Northwestern University Feinberg School of Medicine, Chicago, IL 60614, USA
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- Department of Microbiology and Immunology, Institute of Human Virology, and Institute of Global Health, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Daowen Wang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- College of Agronomy and State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450002, China
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Li F, Li H, Dong C, Yang T, Zhang S, Bao S, Wan X, Zhang Z. Theanine transporters are involved in nitrogen deficiency response in tea plant ( Camellia sinensis L.). Plant Signal Behav 2020; 15:1728109. [PMID: 32067561 PMCID: PMC7194376 DOI: 10.1080/15592324.2020.1728109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Nitrogen in soil directly influences the production and quality of tea. However, high nitrogen application in tea plantation leads to soil acidification and environmental pollution. Studies in model plants showed that plasma membrane localized amino acid transporter can regulate the distribution of amino acids to enhance nitrogen use efficiency. Our recent study identified six CsAAPs as transporters for theanine, a unique and most abundant non-proteinaceous amino acid in tea plant. In this work, we found these theanine transporters can also transport Glutamine, Glutamate, aspartate, alanine and γ-aminobutyric acid. Tissue-specific expression analyses showed that CsAAP1, CsAAP5 and CsAAP6 mainly expressed in leaves, CsAAP8 in root, CsAAP4 and CsAAP2 in stem. Furthermore, the expression of these CsAAPs was induced by nitrogen deficiency in a tissue-specific manner. Subcellular localization analyses showed that CsAAP1, CsAAP2 and CsAAP6 location were in the plasma membrane and endoplasmic reticulum. Taken together, these results suggested theanine transporters are involved in nitrogen deficiency response probably by mediating amino acid transport from roots to new shoots and from source to sink tissues in tea plants.
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Affiliation(s)
- Fang Li
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, China
| | - Huiping Li
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, China
| | - Chunxia Dong
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, China
| | - Tianyuan Yang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, China
| | - Shupei Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, China
| | - Shilai Bao
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, China
- Xiaochun Wan State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Zhaoliang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, China
- CONTACT Zhaoliang Zhang
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28
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Dong C, Li F, Yang T, Feng L, Zhang S, Li F, Li W, Xu G, Bao S, Wan X, Lucas WJ, Zhang Z. Theanine transporters identified in tea plants (Camellia sinensis L.). Plant J 2020; 101:57-70. [PMID: 31461558 DOI: 10.1111/tpj.14517] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [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: 06/29/2019] [Revised: 08/12/2019] [Accepted: 08/19/2019] [Indexed: 05/07/2023]
Abstract
Theanine, a unique non-proteinogenic amino acid, is an important component of tea, as it confers the umami taste and relaxation effect of tea as a beverage. Theanine is primarily synthesized in tea roots and is subsequently transported to young shoots, which are harvested for tea production. Currently, the mechanism for theanine transport in the tea plant remains unknown. Here, by screening a yeast mutant library, followed by functional analyses, we identified the glutamine permease, GNP1 as a specific transporter for theanine in yeast. Although there is no GNP1 homolog in the tea plant, we assessed the theanine transport ability of nine tea plant amino acid permease (AAP) family members, with six exhibiting transport activity. We further determined that CsAAP1, CsAAP2, CsAAP4, CsAAP5, CsAAP6, and CsAAP8 exhibited moderate theanine affinities and transport was H+ -dependent. The tissue-specific expression of these six CsAAPs in leaves, vascular tissues, and the root suggested their broad roles in theanine loading and unloading from the vascular system, and in targeting to sink tissues. Furthermore, expression of these CsAAPs was shown to be seasonally regulated, coincident with theanine transport within the tea plant. Finally, CsAAP1 expression in the root was highly correlated with root-to-bud transport of theanine, in seven tea plant cultivars. Taken together, these findings support the hypothesis that members of the CsAAP family transport theanine and participate in its root-to-shoot delivery in the tea plant.
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Affiliation(s)
- Chunxia Dong
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Fang Li
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Tianyuan Yang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Lin Feng
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Shupei Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Fangdong Li
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Weihong Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Guohua Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shilai Bao
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - William J Lucas
- Department of Plant Biology, College of Biological Sciences, University of California, Davis, CA, 95616, USA
| | - Zhaoliang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, China
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29
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Morris P, Lal S, Dennis M, O'Sullivan J, Hunyor I, Grieve S, Bao S, Puranik R. 027 Unexplained Left Ventricular Late Gadolinium Enhancement (LGE) on Cardiac Magnetic Resonance (CMR) Confers an Adverse Prognosis. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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Bu Y, Bao S, Chan M, McWilliams S, Lee Y, Kuo C, Van der Loos M, Ipsiroglu O. SCIT#1 VS. #2: framing the clinical discussion with an automatic skeleton generation algorithm. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Bao S, McWilliams S, Connor J, Mattman A, Smith S, Stockler S, Vitale-Cox L, Wu J, Ipsiroglu O. Iron deficiency in indigenous populations in Canada And Alaska: a scoping literature review. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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32
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McWilliams S, Bao S, Xiao K, Mattman A, Wu J, Stockler S, Ipsiroglu O. Review of iron deficiency guidelines in the context of iron deficiency-related sleep/wake behaviours. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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33
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Beyzaei N, Bao S, Maher S, Silvestri R, Walters A, Dorffner G, Kloesch G, Spruyt K, Ipsiroglu O. Using pictograms to make 'structured behavioural observations' of youth with restless legs syndrome reproducible. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Liang W, Guo M, He J, Bao S. P2.03-50 Stromal BTK Expression Predicts Poor Prognosis in NSCLC Patients. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Ou J, Zhu X, Chen P, Du Y, Lu Y, Peng X, Bao S, Wang J, Zhang X, Zhang T, Pang C. EP1.01-39 A Randomised Phase II Trial of Vitamin C Synergy with Hyperthermia in Patients with Advanced Non-Small-Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Yang K, Wang X, Kim L, Mack S, Bao S, Rich J. Targeting Metabolic Reprogramming to Radiosensitize Glioblastoma Stem Cells. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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37
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Ding X, Jiang X, Tian R, Zhao P, Li L, Wang X, Chen S, Zhu Y, Mei M, Bao S, Liu W, Tang Z, Sun Q. RAB2 regulates the formation of autophagosome and autolysosome in mammalian cells. Autophagy 2019; 15:1774-1786. [PMID: 30957628 PMCID: PMC6735470 DOI: 10.1080/15548627.2019.1596478] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [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] [Indexed: 02/07/2023] Open
Abstract
Multiple sources contribute membrane and protein machineries to construct functional macroautophagic/autophagic structures. However, the underlying molecular mechanisms remain elusive. Here, we show that RAB2 connects the Golgi network to autophagy pathway by delivering membrane and by sequentially engaging distinct autophagy machineries. In unstressed cells, RAB2 resides primarily in the Golgi apparatus, as evidenced by its interaction and colocalization with GOLGA2/GM130. Importantly, autophagy stimuli dissociate RAB2 from GOLGA2 to interact with ULK1 complex, which facilitates the recruitment of ULK1 complex to form phagophores. Intriguingly, RAB2 appears to modulate ULK1 kinase activity to propagate signals for autophagosome formation. Subsequently, RAB2 switches to interact with autophagosomal RUBCNL/PACER and STX17 to further specify the recruitment of HOPS complex for autolysosome formation. Together, our study reveals a multivalent pathway in bulk autophagy regulation, and provides mechanistic insights into how the Golgi apparatus contributes to the formation of different autophagic structures. Abbreviations: ACTB: actin beta; ATG9: autophagy related 9A; ATG14: autophagy related 14; ATG16L1: autophagy related 16 like 1; BCAP31: B cell receptor associated protein 31; BECN1: beclin 1; Ctrl: control; CQ: chloroquine; CTSD: cathepsin D; DMSO: dimethyl sulfoxide; EBSS: Earle’s balanced salt solution; EEA1: early endosome antigen 1; GDI: guanine nucleotide dissociation inhibitor; GFP: green fluorescent protein; GOLGA2: golgin A2; HOPS: homotypic fusion and protein sorting complex; IP: immunoprecipitation; KD: knockdown; KO: knockout; LAMP1: lysosomal associated membrane protein 1; LC3: microtubule-associated protein 1 light chain 3; OE: overexpression; PtdIns3K: class III phosphatidylinositol 3-kinase; SQSTM1/p62: sequestosome 1; RAB2: RAB2A, member RAS oncogene family; RAB7: RAB7A, member RAS oncogene family; RAB11: RAB11A, member RAS oncogene family; RUBCNL/PACER: rubicon like autophagy enhancer; STX17: syntaxin 17; TBC1D14: TBC1 domain family member 14; TFRC: transferrin receptor; TGOLN2: trans-golgi network protein 2; TUBB: tubulin beta class I; ULK1: unc-51 like autophagy activating kinase 1; VPS41: VPS41, HOPS complex subunit; WB: western blot; WT: wild type; YPT1: GTP-binding protein YPT1.
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Affiliation(s)
- Xianming Ding
- Department of Biochemistry, and Department of Cardiology of Second Affiliated Hospital, Zhejiang University School of Medicine , Hangzhou , China
| | - Xiao Jiang
- Department of Biochemistry, and Department of Cardiology of Second Affiliated Hospital, Zhejiang University School of Medicine , Hangzhou , China
| | - Rui Tian
- Department of Biochemistry, and Department of Cardiology of Second Affiliated Hospital, Zhejiang University School of Medicine , Hangzhou , China
| | - Pengwei Zhao
- Department of Biochemistry, and Department of Cardiology of Second Affiliated Hospital, Zhejiang University School of Medicine , Hangzhou , China
| | - Lin Li
- Proteomics Center, National Institute of Biological Sciences , Beijing , China
| | - Xinyi Wang
- Department of Biochemistry, and Department of Cardiology of Second Affiliated Hospital, Zhejiang University School of Medicine , Hangzhou , China
| | - She Chen
- Proteomics Center, National Institute of Biological Sciences , Beijing , China
| | - Yushan Zhu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University , Tianjin , China
| | - Mei Mei
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences , Beijing , China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences , Beijing , China
| | - Wei Liu
- Department of Biochemistry, and Department of Cardiology of Second Affiliated Hospital, Zhejiang University School of Medicine , Hangzhou , China
| | - Zaiming Tang
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, School of Medicine, Shanghai Jiao Tong University , Shanghai , China
| | - Qiming Sun
- Department of Biochemistry, and Department of Cardiology of Second Affiliated Hospital, Zhejiang University School of Medicine , Hangzhou , China
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Mei M, Zhang R, Zhou ZW, Ying Z, Wang J, Zhang H, Zheng H, Bao S. PRMT5-mediated H4R3sme2 Confers Cell Differentiation in Pediatric B-cell Precursor Acute Lymphoblastic Leukemia. Clin Cancer Res 2019; 25:2633-2643. [PMID: 30635341 DOI: 10.1158/1078-0432.ccr-18-2342] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 11/28/2018] [Accepted: 01/07/2019] [Indexed: 11/16/2022]
Abstract
PURPOSE Little is known about the function of histone arginine methylation in acute lymphoblastic leukemia (ALL). The objective was to evaluate whether protein arginine methyltransferase 5 (PRMT5) plays a role in pediatric ALL and to determine the possible mechanism of epigenetic regulation. EXPERIMENTAL DESIGN We used bone marrow samples from patients with pediatric ALL, the Nalm6 cell line, mature B-cell lines, and mouse xenograft models to evaluate the function of PRMT5 in ALL tumorigenesis. RESULTS This study showed that PRMT5 and the symmetric dimethylation of H4R3 (H4R3sme2) were upregulated in most initially diagnosed (n = 15; 100%) and relapsed (n = 4; 75%) bone marrow leukemia cells from patients with pediatric B-cell precursor ALL (BCP-ALL) and were decreased when the disease was in remission (n = 15; 6.7%). Downregulation of H4R3sme2 by PRMT5 silencing induced BCP-ALL cell differentiation from the pre-B to immature B stage, whereas overexpressed PRMT5 with enhanced H4R3sme2 promoted human mature B cells to dedifferentiate back to the pre-B II/immature B stages in vitro. High PRMT5 expression enhanced the proportion of CD43+/B220+/sIgM- B leukocytes in recipient mice. CLC and CTSB were identified as potential target genes of PRMT5 in BCP-ALL cells and were inhibited by H4R3sme2 in gene promoters. CONCLUSIONS We demonstrate that enhanced PRMT5 promotes BCP-ALL leukemogenesis partially by the dysregulation of B-cell lineage differentiation. H4R3sme2 and PRMT5 may serve as potential sensitive biomarkers of pediatric BCP-ALL. Suppression of the activation of PRMT5 may offer a promising therapeutic strategy against pediatric BCP-ALL.
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Affiliation(s)
- Mei Mei
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Ruidong Zhang
- Beijing Key Laboratory of Pediatric Hematology Oncology; National Key Discipline of Pediatrics (Capital Medical University); Key Laboratory of Major Diseases in Children, Ministry of Education; Department of Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Zhong-Wei Zhou
- School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Zhengzhou Ying
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China.,School of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Jincheng Wang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Han Zhang
- Beijing Key Laboratory of Pediatric Hematology Oncology; National Key Discipline of Pediatrics (Capital Medical University); Key Laboratory of Major Diseases in Children, Ministry of Education; Department of Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Huyong Zheng
- Beijing Key Laboratory of Pediatric Hematology Oncology; National Key Discipline of Pediatrics (Capital Medical University); Key Laboratory of Major Diseases in Children, Ministry of Education; Department of Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China. .,School of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
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Xu L, Zhang H, Mei M, Du C, Huang X, Li J, Wang Y, Bao S, Zheng H. Phosphorylation of serine/arginine-rich splicing factor 1 at tyrosine 19 promotes cell proliferation in pediatric acute lymphoblastic leukemia. Cancer Sci 2018; 109:3805-3815. [PMID: 30320932 PMCID: PMC6272096 DOI: 10.1111/cas.13834] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 05/01/2018] [Revised: 09/21/2018] [Accepted: 10/04/2018] [Indexed: 12/21/2022] Open
Abstract
Serine/arginine‐rich splicing factor 1 (SRSF1) has been linked to various human cancers including pediatric acute lymphoblastic leukemia (ALL). Our previous study has shown that SRSF1 potentially contributes to leukemogenesis; however, its underlying mechanism remains unclear. In this study, leukemic cells were isolated from pediatric ALL bone marrow samples, followed by immunoprecipitation assays and mass spectrometry analysis specific to SRSF1. Subcellular localization of the SRSF1 protein and its mutants were analyzed by immunofluorescence staining. Cell growth, colony formation, cell apoptosis, and the cell cycle were investigated using stable leukemic cell lines generated with lentivirus‐mediated overexpressed WT or mutant plasmids. Cytotoxicity of the Tie2 kinase inhibitor was also evaluated. Our results showed the phosphorylation of SRSF1 at tyrosine 19 (Tyr‐19) was identified in newly diagnosed ALL samples, but not in complete remission or normal control samples. Compared to the SRSF1 WT cells, the missense mutants of the Tyr‐19 phosphorylation affected the subcellular localization of SRSF1. In addition, the Tyr‐19 phosphorylation of SRSF1 also led to increased cell proliferation and enhanced colony‐forming properties by promoting the cell cycle. Remarkably, we further identified the kinase Tie2 as a potential therapeutic target in leukemia cells. In conclusion, we identify for the first time that the phosphorylation state of SRSF1 is linked to different phases in pediatric ALL. The Tyr‐19 phosphorylation of SRSF1 disrupts its subcellular localization and promotes proliferation in leukemia cells by driving cell‐cycle progression. Inhibitors targeting Tie2 kinase that could catalyze Tyr‐19 phosphorylation of SRSF1 offer a promising therapeutic target for treatment of pediatric ALL.
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Affiliation(s)
- Liting Xu
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Han Zhang
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Mei Mei
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Chaohao Du
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Xiahe Huang
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Jing Li
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Yingchun Wang
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Shilai Bao
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Huyong Zheng
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
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40
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Li Q, Jiao J, Li H, Wan H, Zheng C, Cai J, Bao S. Histone arginine methylation by Prmt5 is required for lung branching morphogenesis through repression of BMP signaling. J Cell Sci 2018; 131:jcs.217406. [PMID: 29950483 DOI: 10.1242/jcs.217406] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 06/19/2018] [Indexed: 12/17/2022] Open
Abstract
Branching morphogenesis is essential for the successful development of a functional lung to accomplish its gas exchange function. Although many studies have highlighted requirements for the bone morphogenetic protein (BMP) signaling pathway during branching morphogenesis, little is known about how BMP signaling is regulated. Here, we report that the protein arginine methyltransferase 5 (Prmt5) and symmetric dimethylation at histone H4 arginine 3 (H4R3sme2) directly associate with chromatin of Bmp4 to suppress its transcription. Inactivation of Prmt5 in the lung epithelium results in halted branching morphogenesis, altered epithelial cell differentiation and neonatal lethality. These defects are accompanied by increased apoptosis and reduced proliferation of lung epithelium, as a consequence of elevated canonical BMP-Smad1/5/9 signaling. Inhibition of BMP signaling by Noggin rescues the lung branching defects of Prmt5 mutant in vitro Taken together, our results identify a novel mechanism through which Prmt5-mediated histone arginine methylation represses canonical BMP signaling to regulate lung branching morphogenesis.
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Affiliation(s)
- Qiuling Li
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Jie Jiao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China.,School of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Huijun Li
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China.,School of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Huajing Wan
- Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of the Ministry of Education, West China Institute of Women and Children's Health, and Department of Pediatrics, Huaxi Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China
| | - Caihong Zheng
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Jun Cai
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China .,School of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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41
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Jiang Q, Lu X, Huang P, Gao C, Zhao X, Xing T, Li G, Bao S, Zheng H. Expression of miR-652-3p and Effect on Apoptosis and Drug Sensitivity in Pediatric Acute Lymphoblastic Leukemia. Biomed Res Int 2018; 2018:5724686. [PMID: 29967774 PMCID: PMC6008837 DOI: 10.1155/2018/5724686] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 02/10/2018] [Accepted: 03/08/2018] [Indexed: 12/11/2022]
Abstract
MicroRNAs (miRNAs) expression profiles were screened in plasma samples from pediatric patients with acute lymphoblastic leukemia (ALL) and healthy controls, using qRT-PCR-based TaqMan low-density miRNA arrays. MiR-652-3p (a circulating miRNA) was downregulated in new diagnosis (ND) patients compared with healthy controls. The levels of miR652-3p were restored in complete remission (CR) but were downregulated again in disease relapse (RE). The expression pattern of miR-652-3p was validated in bone marrow (BM) samples from other pediatric ALL patients. MiR-652-3p was significantly upregulated in BM when the patients (n=86) achieved CR, as compared with the matched ND samples (p<0.001). Moreover, the miR-652-3p levels in BM decreased again in two patients at RE. In addition, the lymphoblastic leukemia cell lines Reh and RS4:11 were found to have lower levels of miR-625-3p than the normal B-cell line. Overexpression of miR-652-3p using agomir increased the sensitivity to vincristine and cytarabine (all p<0.05) and promoted apoptosis (both p<0.05) in Reh and RS4:11 cells. In conclusion, the results suggested that a low level of miR-652-3p might be involved in the pathogenesis of pediatric ALL. Overexpression of miR-652-3p might suppress lymphoblastic leukemia cells, promoting apoptosis and increasing sensitivity to chemotherapeutic drugs.
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Affiliation(s)
- Qian Jiang
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Xiaojing Lu
- Maternity and Child Care Hospital of Henan Province, Zhengzhou, Henan 450052, China
| | - Pengli Huang
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Chao Gao
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Xiaoxi Zhao
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Tianyu Xing
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Gang Li
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Shilai Bao
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Huyong Zheng
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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42
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Hussaina H, Tse E, Beyzaei N, Maher KS, Bao S, Campbell M, Carson N, Garn H, Kohn B, Lee Y, Van der Loos M, Stockler S, Spruyt K, Klosch G, Ipsiroglu O. 0667 Learning To Phenotype RLS From Zappelphilipp (Fidgety Philip) Cartoons. Sleep 2018. [DOI: 10.1093/sleep/zsy061.666] [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)
- H Hussaina
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - E Tse
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - N Beyzaei
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - K S Maher
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - S Bao
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - M Campbell
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - N Carson
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - H Garn
- Austrian Institute of Technology, Department of Safety & Security, Vienna, AUSTRIA
| | - B Kohn
- Austrian Institute of Technology, Department of Safety & Security, Vienna, AUSTRIA
| | - Y Lee
- Robotics for Rehabilitation, Exercise and Assessment in Collaborative Healthcare Lab, Department of Mechanical Engineering, University of British Columbia, Vancouver, BC, CANADA
| | - M Van der Loos
- Robotics for Rehabilitation, Exercise and Assessment in Collaborative Healthcare Lab, Department of Mechanical Engineering, University of British Columbia, Vancouver, BC, CANADA
| | - S Stockler
- Division of Biochemical Diseases, BC Children’s Hospital, Department of Pediatrics, University of British Columbia, Vancouver, BC, CANADA
| | - K Spruyt
- Integrated Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Centre, Department of Developmental Neuropsychology, Université Claude Bernard Lyon 1, Lyon, FRANCE
| | - G Klosch
- Institute for Sleep-Wake-Research, Department of Neurology, Medical University of Vienna, Vienna, AUSTRIA
| | - O Ipsiroglu
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
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Tse E, Bao S, Campbell M, Carson N, Hussaina H, Maher KS, Beyzaei N, Kemethofer M, Seidenberger M, Spruyt K, Lewis S, Ipsiroglu O, Klosch G. 0635 Vigilance Observations - Learning from Nighttime Driving Behaviours. Sleep 2018. [DOI: 10.1093/sleep/zsy061.634] [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: 11/12/2022] Open
Affiliation(s)
- E Tse
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - S Bao
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - M Campbell
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - N Carson
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - H Hussaina
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - K S Maher
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - N Beyzaei
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - M Kemethofer
- Institute for Sleep-Wake-Research, Department of Neurology, Medical University of Vienna, Vienna, AUSTRIA
| | | | - K Spruyt
- Integrated Physiology of the Brain Arousal Systems, Lyon Neuroscience Research Centre, Department of Developmental Neuropsychology, Université Claude Bernard Lyon 1, Lyon, FRANCE
| | - S Lewis
- BC Children’s Hospital and BC Women’s Hospital & Health Centre, Department of Medical Genetics, University of British Columbia, Vancouver, BC, CANADA
| | - O Ipsiroglu
- H-Behaviours Research Lab, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, CANADA
| | - G Klosch
- Institute for Sleep-Wake-Research, Department of Neurology, Medical University of Vienna, Vienna, AUSTRIA
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Tse E, Bao S, Campbell M, Carson N, Hussaina H, Maher K, Jeyaratnam J, Beyzaei N, Kemethofer M, Seidenberger M, Spruyt K, Lewis S, Ipsiroglu O, Kloesch G. Behavioural observations step 3: vigilance of night-time drivers. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Cao Z, Li Z, Wang Y, Liu Y, Mo R, Ren P, Chen L, Lu J, Li H, Zhuang Y, Liu Y, Wang X, Zhao G, Tang W, Xiang X, Wang H, Cai W, Liu L, Zhu C, Bao S, Xie Q. Assessment of serum Golgi protein 73 as a biomarker for the diagnosis of significant fibrosis in patients with chronic HBV infection. J Viral Hepat 2017; 24 Suppl 1:57-65. [PMID: 29082644 DOI: 10.1111/jvh.12786] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 05/03/2017] [Accepted: 09/14/2017] [Indexed: 12/15/2022]
Abstract
Transient elastography (TE) is accurate in staging fibrosis noninvasively. However, a reliable serum biomarker with comparable accuracy is also important, especially when TE is unreliable/unavailable. Therefore, we aimed to evaluate the diagnostic performance of serum Golgi protein 73 (GP73) for significant fibrosis in patients with chronic HBV infection. A total of 801 patients with chronic liver disease (CLD; 492 chronic HBV infection and 309 non-HBV liver disease) with liver biopsy performance were enrolled. Healthy controls (n = 180) and hepatocellular carcinoma (HCC) patients (n = 85) were included for comparisons. Liver biopsy was used as the reference method for fibrosis staging. Serum GP73 level was measured in duplicate in double-blind fashion. Serum GP73 was highest in HCC but also significantly higher in chronic hepatitis B than in healthy controls. The elevation of serum GP73 in non-HCC patients was significantly associated with the presence of significant fibrosis independently of ALT level, liver stiffness (LS) value, inflammation grade and other confounding factors. The diagnostic performance of serum GP73 was accurate in antiviral-naïve HBV patients (area under the receiver operating curve [AUROC], 0.76 95% CI: 0.72-0.81) but not in patients with ongoing antiviral treatment (AUROC, 0.60). The utility of serum GP73 was also confirmed in non-HBV CLD (AUROC, 0.80 95% CI: 0.75-0.85). Serum GP73 was comparable to LS (AUROC, 0.78 95% CI: 0.73-0.82) and significantly better than AST to platelet ratio index (APRI) (AUROC, 0.67 95% CI: 0.62-0.72) and FIB-4 (AUROC, 0.68 95% CI: 0.63-0.73). In conclusion, serum GP73 is an accurate serum marker for significant fibrosis in chronic HBV infection, with higher accuracy than APRI and FIB-4. Serum GP73 is potentially a complementary tool for TE when evaluating the necessity of antiviral treatment, particularly in patients without definite antiviral indication.
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Affiliation(s)
- Z Cao
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Z Li
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Wang
- Department of Hepatology, The Affiliated Infectious Diseases Hospital of Soochow University, Suzhou, China
| | - Y Liu
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - R Mo
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - P Ren
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - L Chen
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Lu
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - H Li
- Department of Infectious Disease, The Third Hospital of Changzhou, Jiangsu, China
| | - Y Zhuang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Liu
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Wang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - G Zhao
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - W Tang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Xiang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - H Wang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - W Cai
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - L Liu
- Department of Infectious Disease, The Third Hospital of Changzhou, Jiangsu, China
| | - C Zhu
- Department of Hepatology, The Affiliated Infectious Diseases Hospital of Soochow University, Suzhou, China
| | - S Bao
- Discipline of Pathology, School of Medical Sciences and Bosch Institute, University of Sydney, Sydney, NSW, Australia
| | - Q Xie
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Yu Z, Cheng H, Zhu H, Cao M, Lu C, Bao S, Pan Y, Li Y. Salinomycin enhances doxorubicin sensitivity through reversing the epithelial-mesenchymal transition of cholangiocarcinoma cells by regulating ARK5. ACTA ACUST UNITED AC 2017; 50:e6147. [PMID: 28832761 PMCID: PMC5561806 DOI: 10.1590/1414-431x20176147] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [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: 01/07/2017] [Accepted: 06/27/2017] [Indexed: 12/31/2022]
Abstract
Chemotherapy response rates in patients with cholangiocarcinoma remain low, primarily due to the development of drug resistance. Epithelial-mesenchymal transition (EMT) of cancer cells is widely accepted to be important for metastasis and progression, but it has also been linked to the development of chemoresistance. Salinomycin (an antibiotic) has shown some potential as a chemotherapeutic agent as it selectively kills cancer stem cells, and has been hypothesized to block the EMT process. In this study, we investigated whether salinomycin could reverse the chemoresistance of cholangiocarcinoma cells to the chemotherapy drug doxorubicin. We found that combined salinomycin with doxorubicin treatment resulted in a significant decrease in cell viability compared with doxorubicin or salinomycin treatment alone in two cholangiocarcinoma cell lines (RBE and Huh-28). The dosages of both drugs that were required to produce a cytotoxic effect decreased, indicating that these two drugs have a synergistic effect. In terms of mechanism, salinomycin reversed doxorubicin-induced EMT of cholangiocarcinoma cells, as shown morphologically and through the detection of EMT markers. Moreover, we showed that salinomycin treatment downregulated the AMP-activated protein kinase family member 5 (ARK5) expression, which regulates the EMT process of cholangiocarcinoma. Our results indicated that salinomycin reversed the EMT process in cholangiocarcinoma cells by inhibiting ARK5 expression and enhanced the chemosensitivity of cholangiocarcinoma cells to doxorubicin. Therefore, a combined treatment of salinomycin with doxorubicin could be used to enhance doxorubicin sensitivity in patients with cholangiocarcinoma.
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Affiliation(s)
- Z Yu
- Department of General Surgery, Qingdao Clinic Medical College, Nanjing Medical University, Qingdao, China.,Department of General Surgery, The Second People's Hospital of Lianyungang, Lianyungang, China
| | - H Cheng
- Department of General Surgery, The Afflicted Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - H Zhu
- Department of Gastroenterology, The Afflicted Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - M Cao
- Department of General Surgery, The Afflicted Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - C Lu
- Department of General Surgery, The Afflicted Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - S Bao
- Department of General Surgery, The Afflicted Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - Y Pan
- Department of General Surgery, The Afflicted Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - Y Li
- Department of General Surgery, Qingdao Clinic Medical College, Nanjing Medical University, Qingdao, China
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Hu J, Yang H, Mu J, Lu T, Peng J, Deng X, Kong Z, Bao S, Cao X, Zuo J. Nitric Oxide Regulates Protein Methylation during Stress Responses in Plants. Mol Cell 2017; 67:702-710.e4. [PMID: 28757206 DOI: 10.1016/j.molcel.2017.06.031] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [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: 02/16/2017] [Revised: 05/25/2017] [Accepted: 06/26/2017] [Indexed: 01/05/2023]
Abstract
Methylation and nitric oxide (NO)-based S-nitrosylation are highly conserved protein posttranslational modifications that regulate diverse biological processes. In higher eukaryotes, PRMT5 catalyzes Arg symmetric dimethylation, including key components of the spliceosome. The Arabidopsis prmt5 mutant shows severe developmental defects and impaired stress responses. However, little is known about the mechanisms regulating the PRMT5 activity. Here, we report that NO positively regulates the PRMT5 activity through S-nitrosylation at Cys-125 during stress responses. In prmt5-1 plants, a PRMT5C125S transgene, carrying a non-nitrosylatable mutation at Cys-125, fully rescues the developmental defects, but not the stress hypersensitive phenotype and the responsiveness to NO during stress responses. Moreover, the salt-induced Arg symmetric dimethylation is abolished in PRMT5C125S/prmt5-1 plants, correlated to aberrant splicing of pre-mRNA derived from a stress-related gene. These findings define a mechanism by which plants transduce stress-triggered NO signal to protein methylation machinery through S-nitrosylation of PRMT5 in response to environmental alterations.
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Affiliation(s)
- Jiliang Hu
- State Key Laboratory of Plant Genomics and National Plant Gene Research Center, CAS Center for Excellence in Molecular Plant Sciences, Institute of Genetics and Developmental Biology, Chinese Academy of Science, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huanjie Yang
- State Key Laboratory of Plant Genomics and National Plant Gene Research Center, CAS Center for Excellence in Molecular Plant Sciences, Institute of Genetics and Developmental Biology, Chinese Academy of Science, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Science, Beijing 100101, China
| | - Jinye Mu
- State Key Laboratory of Plant Genomics and National Plant Gene Research Center, CAS Center for Excellence in Molecular Plant Sciences, Institute of Genetics and Developmental Biology, Chinese Academy of Science, Beijing 100101, China
| | - Tiancong Lu
- State Key Laboratory of Plant Genomics and National Plant Gene Research Center, CAS Center for Excellence in Molecular Plant Sciences, Institute of Genetics and Developmental Biology, Chinese Academy of Science, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Juli Peng
- State Key Laboratory of Plant Genomics and National Plant Gene Research Center, CAS Center for Excellence in Molecular Plant Sciences, Institute of Genetics and Developmental Biology, Chinese Academy of Science, Beijing 100101, China
| | - Xian Deng
- State Key Laboratory of Plant Genomics and National Plant Gene Research Center, CAS Center for Excellence in Molecular Plant Sciences, Institute of Genetics and Developmental Biology, Chinese Academy of Science, Beijing 100101, China
| | - Zhaosheng Kong
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Science, Beijing 100101, China
| | - Shilai Bao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiaofeng Cao
- State Key Laboratory of Plant Genomics and National Plant Gene Research Center, CAS Center for Excellence in Molecular Plant Sciences, Institute of Genetics and Developmental Biology, Chinese Academy of Science, Beijing 100101, China
| | - Jianru Zuo
- State Key Laboratory of Plant Genomics and National Plant Gene Research Center, CAS Center for Excellence in Molecular Plant Sciences, Institute of Genetics and Developmental Biology, Chinese Academy of Science, Beijing 100101, China.
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Jiang F, Liu A, Lai Y, Yu X, Li C, Han C, Zhang Y, Wang X, Wang Z, Bao S, Lv N, Jin M, Yang F, Fan Y, Jin T, Zhao W, Shan Z, Teng W. Change in serum TSH levels within the reference range was associated with variation of future blood pressure: a 5-year follow-up study. J Hum Hypertens 2016; 31:244-247. [PMID: 27557892 DOI: 10.1038/jhh.2016.59] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 07/12/2016] [Accepted: 07/15/2016] [Indexed: 11/09/2022]
Abstract
Controversy exists on the relationship between serum thyrotropin (TSH) and blood pressure, and only a few prospective studies are available up to now. The study aimed to investigate the association between serum TSH within the reference range and blood pressure through a 5-year follow-up study. A total of 623 subjects with normal TSH were followed up for 5 years, including the measurement of demographic data, blood pressure, height, weight and serum TSH. Finally, 531 subjects were included in this prospective study. Body mass index (BMI), prevalence of hypertension, and systolic and diastolic blood pressure were all higher at follow-up than at baseline. Adjusted for age, gender, smoking status, BMI and homoeostasis model assessment of insulin resistance (HOMA-IR) at baseline, multiple linear regression analyses found no relationship between serum TSH at baseline and levels of blood pressure at follow-up, but the changes in serum TSH levels during follow-up was positively associated with the changes in systolic blood pressure (B=2.134, P<0.05), which became more significant in women but not significant in men. The change of systolic blood pressure in group of TSH increase >0.5 mIU l-1 was significantly higher than in group of TSH decrease >0.5 mIU l-1 within reference, after adjusting for age, gender, smoking status, BMI and HOMA-IR at baseline. This result became more significant in women, but no statistical significance was observed in men. Co-variation with serum TSH levels and blood pressure was observed during 5-year follow-up among people with normal TSH.
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Affiliation(s)
- F Jiang
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - A Liu
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - Y Lai
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - X Yu
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - C Li
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - C Han
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - Y Zhang
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - X Wang
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - Z Wang
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - S Bao
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - N Lv
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - M Jin
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - F Yang
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - Y Fan
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - T Jin
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - W Zhao
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - Z Shan
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
| | - W Teng
- Department of Endocrinology and Metabolism and the Institute of Endocrinology of the First Affiliated Hospital, China Medical University, Shenyang, PR China
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Drak D, Krishnan A, Chen S, Canniffe C, Bao S, Denyer G, Liu J, Celermajer D. Long-Term Persistence of Systolic Hypertension and Left Ventricular Fibrosis in an Animal Model of Early and Complete Repair of Aortic Coarctation. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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50
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Wu Y, Chen X, Chang X, Huang YJ, Bao S, He Q, Li Y, Zheng J, Duan T, Wang K. Potential involvement of placental AhR in unexplained recurrent spontaneous abortion. Reprod Toxicol 2015; 59:45-52. [PMID: 26593447 DOI: 10.1016/j.reprotox.2015.11.005] [Citation(s) in RCA: 7] [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: 07/20/2015] [Revised: 11/05/2015] [Accepted: 11/16/2015] [Indexed: 11/29/2022]
Abstract
Recurrent spontaneous abortion (RSA) is a common complication of pregnancy. Recent studies have demonstrated that the aryl hydrocarbon receptor (AhR) might play important roles in establishing and maintaining early pregnancy. In this study, we found that placental AhR protein levels were significantly lower and placental CYP1A1 mRNA levels were higher in unexplained RSA (URSA) patients than in control subjects. The results of immunohistochemical analyzes showed that placental AhR was expressed in syncytiotrophoblast cells and that the level of AhR was markedly lower in these cells in URSA subjects than in control subjects. β-Naphthoflavone (β-NF, an AhR ligand) at 5μM significantly inhibited proliferation and migration in HTR-8/SVneo cells and was associated with the activation of AhR. Moreover, overexpressing AhR in JAR cells significantly increased CYP1A1 mRNA levels and inhibited cell migration. These results indicate that AhR is highly activated in URSA placentas and that the activation of AhR in the placenta might impair trophoblast cell proliferation and migration, possibly leading to the occurrence of URSA.
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Affiliation(s)
- Y Wu
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040 PR China
| | - X Chen
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040 PR China
| | - X Chang
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040 PR China
| | - Y J Huang
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040 PR China
| | - S Bao
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040 PR China
| | - Q He
- Department of Pathology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040 PR China
| | - Y Li
- Department of Ob./Gyn., University of Wisconsin-Madison, Madison, WI 53715 USA
| | - J Zheng
- Department of Ob./Gyn., University of Wisconsin-Madison, Madison, WI 53715 USA
| | - T Duan
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040 PR China; Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040 PR China.
| | - K Wang
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040 PR China.
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