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Kaffe E, Roulis M, Zhao J, Qu R, Sefik E, Mirza H, Zhou J, Zheng Y, Charkoftaki G, Vasiliou V, Vatner DF, Mehal WZ, Yuval Kluger, Flavell RA. Humanized mouse liver reveals endothelial control of essential hepatic metabolic functions. Cell 2023; 186:3793-3809.e26. [PMID: 37562401 PMCID: PMC10544749 DOI: 10.1016/j.cell.2023.07.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/24/2023] [Accepted: 07/12/2023] [Indexed: 08/12/2023]
Abstract
Hepatocytes, the major metabolic hub of the body, execute functions that are human-specific, altered in human disease, and currently thought to be regulated through endocrine and cell-autonomous mechanisms. Here, we show that key metabolic functions of human hepatocytes are controlled by non-parenchymal cells (NPCs) in their microenvironment. We developed mice bearing human hepatic tissue composed of human hepatocytes and NPCs, including human immune, endothelial, and stellate cells. Humanized livers reproduce human liver architecture, perform vital human-specific metabolic/homeostatic processes, and model human pathologies, including fibrosis and non-alcoholic fatty liver disease (NAFLD). Leveraging species mismatch and lipidomics, we demonstrate that human NPCs control metabolic functions of human hepatocytes in a paracrine manner. Mechanistically, we uncover a species-specific interaction whereby WNT2 secreted by sinusoidal endothelial cells controls cholesterol uptake and bile acid conjugation in hepatocytes through receptor FZD5. These results reveal the essential microenvironmental regulation of hepatic metabolism and its human-specific aspects.
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Affiliation(s)
- Eleanna Kaffe
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Manolis Roulis
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Jun Zhao
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA; Department of Pathology, Yale School of Medicine, New Haven, CT 06520, USA; Computational Biology and Bioinformatics Program, Yale University, New Haven, CT 06511, USA
| | - Rihao Qu
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA; Department of Pathology, Yale School of Medicine, New Haven, CT 06520, USA; Computational Biology and Bioinformatics Program, Yale University, New Haven, CT 06511, USA
| | - Esen Sefik
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Haris Mirza
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA; Department of Pathology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Jing Zhou
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Yunjiang Zheng
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Georgia Charkoftaki
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT 06520, USA
| | - Vasilis Vasiliou
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT 06520, USA
| | - Daniel F Vatner
- Department of Internal Medicine, Section of Endocrinology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Wajahat Z Mehal
- Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT 06520, USA; Veterans Affairs Medical Center, West Haven, CT 06516, USA
| | - Yuval Kluger
- Department of Pathology, Yale School of Medicine, New Haven, CT 06520, USA; Computational Biology and Bioinformatics Program, Yale University, New Haven, CT 06511, USA; Program of Applied Mathematics, Yale University, New Haven, CT 06511, USA
| | - Richard A Flavell
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA; Howard Hughes Medical Institute, Yale School of Medicine, New Haven, CT 06519, USA.
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Yao F, Hao J, Wang Z, Chu M, Zhang J, Xi G, Zhang Z, An L, Tian J. WNT Co-Receptor LRP6 Is Critical for Zygotic Genome Activation and Embryonic Developmental Potential by Interacting with Oviductal Paracrine Ligand WNT2. Genes (Basel) 2023; 14:genes14040891. [PMID: 37107647 PMCID: PMC10138000 DOI: 10.3390/genes14040891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/02/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
Mammalian preimplantation development depends on the interaction between embryonic autocrine and maternal paracrine signaling. Despite the robust independence of preimplantation embryos, oviductal factors are thought to be critical to pregnancy success. However, how oviductal factors regulate embryonic development and the underlying mechanism remain unknown. In the present study, focusing on WNT signaling, which has been reported to be essential for developmental reprogramming after fertilization, we analyzed the receptor-ligand repertoire of preimplantation embryonic WNT signaling, and identified that the WNT co-receptor LRP6 is necessary for early cleavage and has a prolonged effect on preimplantation development. LRP6 inhibition significantly impeded zygotic genome activation and disrupted relevant epigenetic reprogramming. Focusing on the potential oviductal WNT ligands, we found WNT2 as the candidate interacting with embryonic LRP6. More importantly, we found that WNT2 supplementation in culture medium significantly promoted zygotic genome activation (ZGA) and improved blastocyst formation and quality following in vitro fertilization (IVF). In addition, WNT2 supplementation significantly improved implantation rate and pregnancy outcomes following embryo transfer. Collectively, our findings not only provide novel insight into how maternal factors regulate preimplantation development through maternal-embryonic communication, but they also propose a promising strategy for improving current IVF systems.
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Affiliation(s)
- Fusheng Yao
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Jia Hao
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Zhaochen Wang
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Meiqiang Chu
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Jingyu Zhang
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Guangyin Xi
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Zhenni Zhang
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Lei An
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Jianhui Tian
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
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Tian Y, Yang X, Du J, Zeng W, Wu W, Di J, Huang X, Tian K. Differential Methylation and Transcriptome Integration Analysis Identified Differential Methylation Annotation Genes and Functional Research Related to Hair Follicle Development in Sheep. Front Genet 2021; 12:735827. [PMID: 34659357 PMCID: PMC8515899 DOI: 10.3389/fgene.2021.735827] [Citation(s) in RCA: 4] [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: 07/03/2021] [Accepted: 08/30/2021] [Indexed: 11/13/2022] Open
Abstract
Hair follicle growth and development are a complex and long-term physiological process, which is regulated by a variety of physical factors and signal pathways. Increasing the understanding of the epigenetic regulation and function of candidate genes related to hair follicle development will help to better understand the molecular regulatory mechanisms of hair follicle development. In this study, the methylated DNA immunoprecipitation sequencing (MeDIP-seq) was used to obtain the genome-wide methylation map of the hair follicular development of Super Merino sheep in six stages (fetal skin tissue at 65d, 85d, 105d, 135d, 7d, and 30d after birth). Combined with the results of previous RNA-sequencing, 65 genes were screened out that were both differential methylation and differential expression, including EDN1, LAMC2, NR1D1, RORB, MyOZ3, and WNT2 gene. Differential methylation genes were enriched in Wnt, TNF, TGF-beta, and other signaling pathways related to hair follicle development. The bisulfite sequencing PCR results and MeDIP-seq were basically consistent, indicating that the sequencing results were accurate. As a key gene in the Wnt signaling pathway, both differential methylation and expression gene identified by MeDIP-seq and RNA-seq, further exploration of the function of WNT2 gene revealed that the DNA methylation of exon 5 (CpG11 site) promoted the expression of WNT2 gene. The overexpression vector of lentivirus pLEX-MCS-WNT2 was constructed, and WNT2 gene effectively promoted the proliferation of sheep skin fibroblasts. The results showed that WNT2 gene could promote the growth and development of skin and hair follicles. The results of this study will provide a theoretical basis for further research on sheep hair follicle development and gene regulation mechanisms.
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Affiliation(s)
- Yuezhen Tian
- The Key Laboratory for Genetics Breeding and Reproduction of Xinjiang Cashmere and Wool Sheep, Institute of Animal Science, Xinjiang Academy of Animal Sciences, Urumqi, China
| | - Xuemei Yang
- College of Animal Science, Xinjiang Agricultural University, Urumqi, China
| | - Jianwen Du
- College of Animal Science, Xinjiang Agricultural University, Urumqi, China
| | - Weidan Zeng
- College of Animal Science, Xinjiang Agricultural University, Urumqi, China
| | - Weiwei Wu
- The Key Laboratory for Genetics Breeding and Reproduction of Xinjiang Cashmere and Wool Sheep, Institute of Animal Science, Xinjiang Academy of Animal Sciences, Urumqi, China
| | - Jiang Di
- The Key Laboratory for Genetics Breeding and Reproduction of Xinjiang Cashmere and Wool Sheep, Institute of Animal Science, Xinjiang Academy of Animal Sciences, Urumqi, China
| | - Xixia Huang
- College of Animal Science, Xinjiang Agricultural University, Urumqi, China
| | - Kechuan Tian
- The Key Laboratory for Genetics Breeding and Reproduction of Xinjiang Cashmere and Wool Sheep, Institute of Animal Science, Xinjiang Academy of Animal Sciences, Urumqi, China
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Wang B, Wang X, Tseng Y, Huang M, Luo F, Zhang J, Liu J. Distinguishing colorectal adenoma from hyperplastic polyp by WNT2 expression. J Clin Lab Anal 2021; 35:e23961. [PMID: 34477243 PMCID: PMC8529141 DOI: 10.1002/jcla.23961] [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: 06/02/2021] [Revised: 07/21/2021] [Accepted: 07/30/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Colorectal adenoma (CRA) is a classical premalignant lesion, with high incidence and mainly coexisting with hyperplastic polyp (HPP). Hence, this study aimed to distinguish CRA from HPP by molecular expression profiling and advance the prevention of CRA and its malignance. METHODS CRA and paired HPP biopsies were collected by endoscopy. Through RNA-sequencing (RNA-seq), the differentially expressed genes (DEGs) were obtained. Functional enrichment analysis was performed based on the DEGs. The STRING database and Cytoscape were used to construct the protein-protein interaction (PPI) network and perform module analysis. Hub genes were validated by real-time quantitative PCR (RT-qPCR) and immunohistochemistry. The ROC curve was drawn to establish the specificity of the hub genes. RESULTS 485 significant DEGs were identified including 133 up-regulated and 352 down-regulated. The top 10 up-regulated genes were DLX5, MMP10, TAC1, ACAN, TAS2R38, WNT2, PHYHIPL, DKK4, DUSP27, and ABCA12. The top 10 down-regulated genes were SFRP2, CHRDL1, KBTBD12, RERGL, DPP10, CLCA4, GREM2, TMIGD1, FEV, and OTOP3. Wnt signaling pathway and extracellular matrix (ECM) were up-regulated in CRA. Three hub genes including WNT2, WNT5A, and SFRP1 were filtered out via Cytoscape. Further RT-qPCR and immunohistochemistry confirmed that WNT2 was highly expressed in CRA. The area under the ROC curve (AUC) at 0.98 indicated the expression level of WNT2 as a candidate to differ CRA from HPP. CONCLUSION Our study suggests Wnt signaling pathway and ECM are enriched in CRA, and WNT2 may be used as a novel biomarker for distinguishing CRA from HPP and preventing the malignance of CRA.
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Affiliation(s)
- Bangting Wang
- Department of Digestive Diseases, Huashan HospitalFudan UniversityShanghaiChina
| | - Xin Wang
- State Key Laboratory of Genetic EngineeringSchool of Life SciencesFudan UniversityShanghaiChina
| | - Yujen Tseng
- Department of Digestive Diseases, Huashan HospitalFudan UniversityShanghaiChina
| | - Meina Huang
- State Key Laboratory of Genetic EngineeringSchool of Life SciencesFudan UniversityShanghaiChina
| | - Feifei Luo
- Department of Digestive Diseases, Huashan HospitalFudan UniversityShanghaiChina
| | - Jun Zhang
- Department of Digestive Diseases, Huashan HospitalFudan UniversityShanghaiChina
| | - Jie Liu
- Department of Digestive Diseases, Huashan HospitalFudan UniversityShanghaiChina
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Hu Y, Zheng M, Zhang D, Gou R, Liu O, Wang S, Lin B. Identification of the prognostic value of a 2-gene signature of the WNT gene family in UCEC using bioinformatics and real-world data. Cancer Cell Int 2021; 21:516. [PMID: 34565373 PMCID: PMC8474865 DOI: 10.1186/s12935-021-02215-0] [Citation(s) in RCA: 4] [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: 07/23/2021] [Accepted: 09/15/2021] [Indexed: 12/29/2022] Open
Abstract
Background The WNT gene family plays an important role in the occurrence and development of malignant tumors, but its involvement has not been systematically analyzed in uterine corpus endometrial carcinoma (UCEC). This study aimed to evaluate the prognostic value of the WNT gene family in UCEC. Methods Pan-cancer transcriptome data of the UCSC Xena database and Genotype-Tissue Expression (GTEx) normal tissue data were downloaded to analyze the expression and prognosis of 19 WNT family genes in UCEC. A cohort from The Cancer Genome Atlas-Uterine Corpus Endometrial Carcinoma (TCGA-UCEC) was used to analyze the expression of the WNT gene family in different immune subtypes and clinical subgroups. The STRING database was used to analyze the interaction of the WNT gene family and its biological function. Univariate Cox regression analysis and Lasso cox analysis were used to identify the genes associated with significant prognosis and to construct multi signature prognosis model. An immunohistochemical assay was used to verify the predictive ability of the model. Risk score and the related clinical features were used to construct a nomogram. Results The expression levels of WNT2, WNT3, WNT3A, WNT5A, WNT7A, and WNT10A were significantly different among different immune subtypes and correlated with TP53 mutation. According to the WNT family genes related to the prognosis of UCEC, UCEC was classified into two subtypes (C1, C2). The prognosis of subtype C1 was significantly better than that of subtype C2. A 2-gene signature (WNT2 and WNT10A) was constructed and the two significantly prognostic groups can be divided based on median Risk score. These results were verified using real-world data, and the nomogram constructed using clinical features and Risk score had good prognostic ability. Conclusions The 2-gene signature including WNT2 and WNT10A can be used to predict the prognosis of patients with UCEC, which is important for clinical decision-making and individualized therapy for patients with UCEC.
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Affiliation(s)
- Yuexin Hu
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Benxi, China.,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Benxi, China
| | - Mingjun Zheng
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Benxi, China.,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Benxi, China.,Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Dandan Zhang
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Benxi, China.,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Benxi, China
| | - Rui Gou
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Benxi, China.,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Benxi, China
| | - Ouxuan Liu
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Benxi, China.,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Benxi, China
| | - Shuang Wang
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Benxi, China.,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Benxi, China
| | - Bei Lin
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, China. .,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Benxi, China. .,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Benxi, China. .,4th Gynecological Ward, Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Liaoning, 110004, Shenyang, People's Republic of China.
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Jin L, Luo C, Wu X, Li M, Wu S, Feng Y. LncRNA-HAGLR motivates triple negative breast cancer progression by regulation of WNT2 via sponging miR-335-3p. Aging (Albany NY) 2021; 13:19306-19316. [PMID: 34375306 PMCID: PMC8386551 DOI: 10.18632/aging.203272] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/22/2021] [Indexed: 02/06/2023]
Abstract
Background: Triple negative breast cancer (TNBC) is a group of highly heterogeneous mixed breast cancer at the level of gene expression profile. Therefore, it is of great clinical significance to explore the molecular mechanism of TNBC and find a targeted therapeutic approach from the molecular level. Methods: Long non-coding RNA (lncRNA) HAGLR expression level was measured by and qRT-PCR in TNBC tissues and cell lines. EdU, MTT, wound healing and Transwell assays were performed to explore the role of HAGLR on the malignancy of TNBC cells. Luciferase assay was used to clarify the binding between miR-335-3p with HAGLR and WNT2. The tumor formation experiment in nude mice was used to explore the function of HAGLR in vivo. Results: HAGLR was increased in TNBC tissues and cell lines. Silencing of HAGLR inhibited viability, proliferation, migration, and invasion of BT549 cells. Furthermore, HAGLR acted as a sponge of miR-335-3p and inhibited its expression. And miR-335-3p directly targeted WNT2. Functionally, forced expression of miR-335-3p or knockdown of WNT2 removed the promoted effects of lncRNA HAGLR on TNBC development. In vivo tumorigenesis experiments indicated HAGLR accelerated tumor growth via miR-335-3p/WNT2 axis. Conclusion: Our study revealed that HAGLR promoted the growth of TNBC, which was mediated by miR-335-3p/WNT2 axis.
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Affiliation(s)
- Liting Jin
- Department of Breast Surgery, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei Province 430079, China
| | - Chenggang Luo
- Department of Radiology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei Province 430079, China
| | - Xinhong Wu
- Department of Breast Surgery, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei Province 430079, China
| | - Manxiu Li
- Department of Breast Surgery, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei Province 430079, China
| | - Shun Wu
- Department of Breast Surgery, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei Province 430079, China
| | - Yaojun Feng
- Department of Breast Surgery, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei Province 430079, China
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Liu Z, Yang J, Fang Q, Shao H, Yang D, Sun J, Gao L. MiRNA-199a-5p targets WNT2 to regulate depression through the CREB/BDNF signaling in hippocampal neuron. Brain Behav 2021; 11:e02107. [PMID: 34333859 PMCID: PMC8413827 DOI: 10.1002/brb3.2107] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION This study mainly investigated the role of miR-199a-5p in depression. METHODS qRT-PCR and western blotting were employed to detect the expressions of miR-199a-5p, CREB and BDNF. Sucrose preference test, forced swimming test, and tail suspension test were performed to evaluate depression-related symptoms. MTT assays and flow cytometry were used to examine the cell reproduction and apoptotic cells of hippocampal neuron. RESULTS The data demonstrated that the expression levels of miR-199a-5p in the cerebrospinal fluids and serums of depression patient and the hippocampus of chronic unpredictable mild stress (CUMS) mouse were significantly increased. However, the expressions of WNT2, p-CREB, and BDNF were inhibited. In addition, miR-199a-5p-inhibitor enhanced sucrose preferences of CUMS mouse and decreased immobile time in sucrose preference test and forced swimming test. Knockdown of WNT2 attenuated the effects of miR-199a-5p-inhibitor on cell reproduction and apoptotic cells of hippocampal neuron and the expression of WNT2, p-CREB, and BDNF. CONCLUSION MiR-199a-5p can target WNT2 to enhance the development of depression through regulation of the CREB/BDNF signaling. TRIAL REGISTRATION JNU-Hos-49284.
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Affiliation(s)
- Zheng Liu
- Department of Graduate School, Tianjin Medical University, Tianjin, China.,Department of department of neurology, The Second Affiliated Hospital of Baotou Medical College, Baotou, China
| | - Jianli Yang
- Department of Clinical Psychology, Tianjin Medical University General Hospital, Tianjin, China
| | - Qing Fang
- Department of Clinical Psychology, Tianjin Medical University General Hospital, Tianjin, China
| | - Hua Shao
- Department of Clinical Psychology, Tianjin Medical University General Hospital, Tianjin, China
| | - Dalu Yang
- Department of Clinical Psychology, Tianjin Medical University General Hospital, Tianjin, China
| | - Junfang Sun
- Department of department of neurology, The Second Affiliated Hospital of Baotou Medical College, Baotou, China
| | - Lizhi Gao
- Department of department of neurology, The Second Affiliated Hospital of Baotou Medical College, Baotou, China
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Wang Y, Lu P, Jiang L, Wu B, Zhou B. Control of sinus venous valve and sinoatrial node development by endocardial NOTCH1. Cardiovasc Res 2021; 116:1473-1486. [PMID: 31591643 DOI: 10.1093/cvr/cvz249] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 12/04/2018] [Revised: 08/06/2019] [Accepted: 10/01/2019] [Indexed: 12/22/2022] Open
Abstract
AIMS Sinus venous valve (SVV) and sinoatrial node (SAN) develop together at the sinoatrial junction during embryogenesis. SVV ensures unidirectional cardiac input and SAN generates sinus rhythmic contraction, respectively; both functions are essential for embryonic survival. We aim to reveal the potential role of endocardial NOTCH signalling in SVV and SAN formation. METHODS AND RESULTS We specifically deleted Notch1 in the endocardium using an Nfatc1Cre line. This deletion resulted in underdeveloped SVV and SAN, associated with reduced expression of T-box transcription factors, Tbx5 andTbx18, which are essential for the formation of SVV and SAN. The deletion also led to decreased expression of Wnt2 in myocardium of SVV and SAN. WNT2 treatment was able to rescue the growth defect of SVV and SAN resulted from the Notch1 deletion in whole embryo cultures. Furthermore, the Notch1 deletion reduced the expression of Nrg1 in the SVV myocardium and supplement of NRG1 restored the growth of SVV in cultured Notch1 knockout embryos. CONCLUSION Our findings support that endocardial NOTCH1 controls the development of SVV and SAN by coordinating myocardial WNT and NRG1 signalling functions.
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Affiliation(s)
- Yidong Wang
- Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 Yanta West Road, Xi'an, Shanxi 710061, China.,Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Pengfei Lu
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Liping Jiang
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA.,Department of Ultrasound, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Bingruo Wu
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Bin Zhou
- Department of Genetics, Paediatrics, and Medicine (Cardiology), Wilf Family Cardiovascular Research Institute, Institute for Aging Research, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, New York 10461, USA.,Department of Cardiology of First Affiliated Hospital and State Key Laboratory of Reproductive Medicine, Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China
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Dong X, Luo Y, Lu S, Ma H, Zhang W, Zhu Y, Sun G, Sun X. Ursodesoxycholic acid alleviates liver fibrosis via proregeneration by activation of the ID1- WNT2/HGF signaling pathway. Clin Transl Med 2021; 11:e296. [PMID: 33635004 PMCID: PMC7828260 DOI: 10.1002/ctm2.296] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 01/07/2021] [Accepted: 01/10/2021] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND The human liver possesses a remarkable capacity for self-repair. However, liver fibrosis remains a serious medical concern, potentially progressing to end-stage liver cirrhosis and even death. Liver fibrosis is characterized by excess accumulation of extracellular matrix in response to chronic injury. Liver regenerative ability, a strong indicator of liver health, is important in resisting fibrosis. In this study, we provide evidence that ursodesoxycholic acid (UDCA) can alleviate liver fibrosis by promoting liver regeneration via activation of the ID1-WNT2/hepatocyte growth factor (HGF) pathway. METHODS Bile duct ligation (BDL) and partial hepatectomy (PH) mouse models were used to verify the effects of UDCA on liver fibrosis, regeneration, and the ID1-WNT2/HGF pathway. An Id1 knockdown mouse model was also used to assess the role of Id1 in UDCA alleviation of liver fibrosis. RESULTS Our results demonstrate that UDCA can alleviate liver fibrosis in the BDL mice and promote liver regeneration via the ID1-WNT2/HGF pathway in PH mice. In addition, Id1 knockdown abolished the protection afforded by UDCA in BDL mice. CONCLUSIONS We conclude that UDCA protects against liver fibrosis by proregeneration via activation of the ID1-WNT2/HGF pathway.
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Affiliation(s)
- Xi Dong
- Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational MedicineInstitute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical SciencesBeijing100193P. R. China
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine PrescriptionChinese Academy of Medical SciencesBeijing100193P. R. China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant DevelopmentChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijing100193P. R. China
- Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant DevelopmentPeking Union Medical College and Chinese Academy of Medical SciencesBeijing100193P. R. China
| | - Yun Luo
- Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational MedicineInstitute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical SciencesBeijing100193P. R. China
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine PrescriptionChinese Academy of Medical SciencesBeijing100193P. R. China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant DevelopmentChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijing100193P. R. China
- Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant DevelopmentPeking Union Medical College and Chinese Academy of Medical SciencesBeijing100193P. R. China
| | - Shan Lu
- Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational MedicineInstitute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical SciencesBeijing100193P. R. China
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine PrescriptionChinese Academy of Medical SciencesBeijing100193P. R. China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant DevelopmentChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijing100193P. R. China
- Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant DevelopmentPeking Union Medical College and Chinese Academy of Medical SciencesBeijing100193P. R. China
| | - Han Ma
- School of Traditional Chinese MedicineCapital Medical UniversityBeijingP. R. China
| | - Wenchao Zhang
- College of Life Science and TechnologyBeijing University of Chemical TechnologyBeijingP. R. China
| | - Yue Zhu
- Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational MedicineInstitute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical SciencesBeijing100193P. R. China
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine PrescriptionChinese Academy of Medical SciencesBeijing100193P. R. China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant DevelopmentChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijing100193P. R. China
- Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant DevelopmentPeking Union Medical College and Chinese Academy of Medical SciencesBeijing100193P. R. China
| | - Guibo Sun
- Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational MedicineInstitute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical SciencesBeijing100193P. R. China
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine PrescriptionChinese Academy of Medical SciencesBeijing100193P. R. China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant DevelopmentChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijing100193P. R. China
- Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant DevelopmentPeking Union Medical College and Chinese Academy of Medical SciencesBeijing100193P. R. China
| | - Xiaobo Sun
- Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational MedicineInstitute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical SciencesBeijing100193P. R. China
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine PrescriptionChinese Academy of Medical SciencesBeijing100193P. R. China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant DevelopmentChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijing100193P. R. China
- Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant DevelopmentPeking Union Medical College and Chinese Academy of Medical SciencesBeijing100193P. R. China
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10
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Cao J, Zhang X, Xu P, Wang H, Wang S, Zhang L, Li Z, Xie L, Sun G, Xia Y, Lv J, Yang J, Xu Z. Circular RNA circLMO7 acts as a microRNA-30a-3p sponge to promote gastric cancer progression via the WNT2/β-catenin pathway. J Exp Clin Cancer Res 2021; 40:6. [PMID: 33397440 PMCID: PMC7784001 DOI: 10.1186/s13046-020-01791-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/25/2020] [Indexed: 12/20/2022]
Abstract
Background Gastric cancer (GC) is one of the most common malignant tumors worldwide. Currently, the overall survival rate of GC is still unsatisfactory despite progress in diagnosis and treatment. Therefore, studying the molecular mechanisms involved in GC is vital for diagnosis and treatment. CircRNAs, a type of noncoding RNA, have been proven to act as miRNA sponges that can widely regulate various cancers. By this mechanism, circRNA can regulate tumors at the genetic level by releasing miRNA from inhibiting its target genes. The WNT2/β-Catenin regulatory pathway is one of the canonical signaling pathways in tumors. It can not only promote the development of tumors but also provide energy for tumor growth through cell metabolism (such as glutamine metabolism). Methods Through RNA sequencing, we found that hsa_circ_0008259 (circLMO7) was highly expressed in GC tissues. After verifying the circular characteristics of circLMO7, we determined the downstream miRNA (miR-30a-3p) of circLMO7 by RNA pull-down and luciferase reporter assays. We verified the effect of circLMO7 and miR-30a-3p on GC cells through a series of functional experiments, including colony formation, 5-ethynyl-2′-deoxyuridine and Transwell assays. Through Western blot and immunofluorescence analyses, we found that WNT2 was the downstream target gene of miR-30a-3p and further confirmed that the circLMO7-miR-30a-3p-WNT2 axis could promote the development of GC. In addition, measurement of related metabolites confirmed that this axis could also provide energy for the growth of GC cells through glutamine metabolism. We found that circLMO7 could promote the growth and metastasis of GC in vivo by the establishment of nude mouse models. Finally, we also demonstrated that HNRNPL could bind to the flanking introns of the circLMO7 exons to promote circLMO7 cyclization. Results CircLMO7 acted as a miR-30a-3p sponge affecting the WNT2/β-Catenin pathway to promote the proliferation, migration and invasion of GC cells. Moreover, animal results also showed that circLMO7 could promote GC growth and metastasis in vivo. CircLMO7 could also affect the glutamine metabolism of GC cells through the WNT2/β-Catenin pathway to promote its malignant biological function. In addition, we proved that HNRNPL could promote the self-cyclization of circLMO7. Conclusions CircLMO7 promotes the development of GC by releasing the inhibitory effect of miR-30a-3p on its target gene WNT2. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-020-01791-9.
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Affiliation(s)
- Jiacheng Cao
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Xing Zhang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Penghui Xu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Haixiao Wang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China.,Department of General Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian, 223300, Jiangsu Province, China
| | - Sen Wang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Lu Zhang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Zheng Li
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Li Xie
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Guangli Sun
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Yiwen Xia
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Jialun Lv
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Jing Yang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Zekuan Xu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China. .,Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China.
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11
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Liu Y, Huang J, Yu N, Wei S, Liu Z. Involvement of WNT2 in trophoblast cell behavior in preeclampsia development. Cell Cycle 2020; 19:2207-2215. [PMID: 32779546 PMCID: PMC7513852 DOI: 10.1080/15384101.2020.1802913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 01/02/2020] [Revised: 06/13/2020] [Accepted: 07/07/2020] [Indexed: 10/23/2022] Open
Abstract
This study aimed to determine the WNT2 expression in patients with severe preeclampsia and to explore the function of WNT2 dysregulation on the biological behaviors of trophoblast cells. The WNT2 and β-catenin expression in the patients with early-onset and late-onset severe preeclampsia and normal controls was determined. Subsequently, WNT2 was overexpressed and knocked down in HTR8 cells and WNT2 signaling pathway in regulating trophoblast cell proliferation, migration, invasion, and apoptosis were evaluated in vitro. The mRNA and protein expression levels of WNT2 and β-catenin were decreased in patients with preeclampsia, especially early-onset severe preeclampsia. Overexpression of WNT2 promoted trophoblast cell proliferation, migration, and invasion and inhibited apoptosis in vitro, whereas knockdown of WNT2 had opposite effects. The findings of this study reveal that WNT2 and β-catenin were decreased expressed in patients with preeclampsia. Decreased expression of WNT2 may inhibit trophoblast cell proliferation, migration, and invasion but induced apoptosis. WNT2 may serve as a promising biomarker for early detection of preeclampsia.
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Affiliation(s)
- Yufang Liu
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital, Binzhou City, Shandong Province, China
| | - Junzhi Huang
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital, Binzhou City, Shandong Province, China
| | - Ning Yu
- Department of Pathology, Binzhou Medical University Hospital, Binzhou City, Shandong Province, China
| | - Shuangyan Wei
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital, Binzhou City, Shandong Province, China
| | - Zhiqiang Liu
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital, Binzhou City, Shandong Province, China
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12
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Fu Y, Zheng Q, Mao Y, Jiang X, Chen X, Liu P, Lv B, Huang T, Yang J, Cheng Y, Dai X, Dai C, Wang X, Yin Y, Song T, Jin W, Zou C, Chen T, Fu L, Chen Z. WNT2-Mediated FZD2 Stabilization Regulates Esophageal Cancer Metastasis via STAT3 Signaling. Front Oncol 2020; 10:1168. [PMID: 32766155 PMCID: PMC7379028 DOI: 10.3389/fonc.2020.01168] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/09/2020] [Indexed: 12/24/2022] Open
Abstract
Esophageal cancer micro environment factor WNT2 was critical in cancer metastasis. However, very little is known about WNT2 receptors and their role in the malignant progression of ESCC. The clinical significance and underlying molecular mechanisms of FZD2, one of the receptors of WNT2, was further investigated in ESCC. We found that FZD2 expression was positively correlated with WNT2 levels in clinical ESCC specimens through database analysis. Upregulated FZD2 expression was detected in 69% (69/100) of the primary ESCC cases examined, and increased FZD2 expression was significantly correlated with poor prognosis (P < 0.05). Mechanistically, FZD2 induced the migration and invasion of ESCC cells by regulating the FZD2/STAT3 signaling. In vivo xenograft experiments further revealed the metastasis-promoting role of FZD2 in ESCC. Moreover, we found that the WNT2 ligand could stabilize and phosphorylate the FZD2 receptor by attenuating FZD2 ubiquitination, leading to the activation of STAT3 signaling and the initiation of ESCC cell metastasis. Collectively, our data revealed that a novel non-canonical WNT2/FZD2/STAT3 signaling axis is critical for ESCC progression. Strategies targeting this specific signaling axis might be developed to treat patients with ESCC.
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Affiliation(s)
- Yufei Fu
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qi Zheng
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Yingying Mao
- Department of Epidemiology and Biostatistics, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiyi Jiang
- Group of Molecular Epidemiology & Cancer Precision Prevention, Zhejiang Academy of Medical Sciences, Hangzhou, China
| | - Xin Chen
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Pei Liu
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Bin Lv
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Tuxiong Huang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Pharmacology and Shenzhen International Cancer Centre, Shenzhen University School of Medicine, Shenzhen, China
| | - Jiao Yang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Pharmacology and Shenzhen International Cancer Centre, Shenzhen University School of Medicine, Shenzhen, China
| | - Yongran Cheng
- Group of Molecular Epidemiology & Cancer Precision Prevention, Zhejiang Academy of Medical Sciences, Hangzhou, China
| | - Xiaoyi Dai
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Chunyan Dai
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xi Wang
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yifei Yin
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Tengjiao Song
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Weiyang Jin
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Chang Zou
- Clinical Medical Research Center, The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Tianhui Chen
- Department of Cancer Prevention, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China.,Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Hangzhou, China
| | - Li Fu
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Department of Pharmacology and Shenzhen International Cancer Centre, Shenzhen University School of Medicine, Shenzhen, China
| | - Zhe Chen
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
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Unterleuthner D, Neuhold P, Schwarz K, Janker L, Neuditschko B, Nivarthi H, Crncec I, Kramer N, Unger C, Hengstschläger M, Eferl R, Moriggl R, Sommergruber W, Gerner C, Dolznig H. Cancer-associated fibroblast-derived WNT2 increases tumor angiogenesis in colon cancer. Angiogenesis 2019; 23:159-177. [PMID: 31667643 PMCID: PMC7160098 DOI: 10.1007/s10456-019-09688-8] [Citation(s) in RCA: 155] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/26/2019] [Accepted: 10/09/2019] [Indexed: 12/24/2022]
Abstract
WNT2 acts as a pro-angiogenic factor in placental vascularization and increases angiogenesis in liver sinusoidal endothelial cells (ECs) and other ECs. Increased WNT2 expression is detectable in many carcinomas and participates in tumor progression. In human colorectal cancer (CRC), WNT2 is selectively elevated in cancer-associated fibroblasts (CAFs), leading to increased invasion and metastasis. However, if there is a role for WNT2 in colon cancer, angiogenesis was not addressed so far. We demonstrate that WNT2 enhances EC migration/invasion, while it induces canonical WNT signaling in a small subset of cells. Knockdown of WNT2 in CAFs significantly reduced angiogenesis in a physiologically relevant assay, which allows precise assessment of key angiogenic properties. In line with these results, expression of WNT2 in otherwise WNT2-devoid skin fibroblasts led to increased angiogenesis. In CRC xenografts, WNT2 overexpression resulted in enhanced vessel density and tumor volume. Moreover, WNT2 expression correlates with vessel markers in human CRC. Secretome profiling of CAFs by mass spectrometry and cytokine arrays revealed that proteins associated with pro-angiogenic functions are elevated by WNT2. These included extracellular matrix molecules, ANG-2, IL-6, G-CSF, and PGF. The latter three increased angiogenesis. Thus, stromal-derived WNT2 elevates angiogenesis in CRC by shifting the balance towards pro-angiogenic signals.
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Affiliation(s)
- Daniela Unterleuthner
- Institute of Medical Genetics, Medical University of Vienna, Währinger Straße 10, 1090, Vienna, Austria
| | - Patrick Neuhold
- Institute of Medical Genetics, Medical University of Vienna, Währinger Straße 10, 1090, Vienna, Austria
| | - Katharina Schwarz
- Institute of Medical Genetics, Medical University of Vienna, Währinger Straße 10, 1090, Vienna, Austria
| | - Lukas Janker
- Institute of Analytical Chemistry, University of Vienna, Währinger Straße 38, 1090, Vienna, Austria
| | - Benjamin Neuditschko
- Institute of Analytical Chemistry, University of Vienna, Währinger Straße 38, 1090, Vienna, Austria
| | - Harini Nivarthi
- Ludwig Boltzmann Institute for Cancer Research, Währinger Straße 13a, 1090, Vienna, Austria.,CeMM, Research Center for Molecular Medicine of the Austrian Academy of Sciences, Lazarettgasse 14, 1090, Vienna, Austria
| | - Ilija Crncec
- Institute of Cancer Research, Medical University of Vienna, Borschkegasse 8, 1090, Vienna, Austria.,Servier Pharma, Tuškanova 37, 10 000, Zagreb, Croatia
| | - Nina Kramer
- Institute of Medical Genetics, Medical University of Vienna, Währinger Straße 10, 1090, Vienna, Austria.,Department for Companion Animals and Horses, University of Veterinary Medicine, Veterinärplatz 1, 1210, Vienna, Austria
| | - Christine Unger
- Institute of Medical Genetics, Medical University of Vienna, Währinger Straße 10, 1090, Vienna, Austria
| | - Markus Hengstschläger
- Institute of Medical Genetics, Medical University of Vienna, Währinger Straße 10, 1090, Vienna, Austria
| | - Robert Eferl
- Institute of Cancer Research, Medical University of Vienna, Borschkegasse 8, 1090, Vienna, Austria
| | - Richard Moriggl
- Ludwig Boltzmann Institute for Cancer Research, Währinger Straße 13a, 1090, Vienna, Austria.,Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210, Vienna, Austria
| | - Wolfgang Sommergruber
- Boehringer Ingelheim RCV GmbH & Co KG, Dr. Boehringer-Gasse 5-11, 1130, Vienna, Austria.,Biotechnology, University of Applied Sciences, FH Campus Wien, Helmut- Qualtinger-Gasse 2, 1030, Vienna, Austria
| | - Christopher Gerner
- Institute of Analytical Chemistry, University of Vienna, Währinger Straße 38, 1090, Vienna, Austria
| | - Helmut Dolznig
- Institute of Medical Genetics, Medical University of Vienna, Währinger Straße 10, 1090, Vienna, Austria.
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14
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Liu L, Chen L, Wu T, Qian H, Yang S. MicroRNA-30a-3p functions as a tumor suppressor in renal cell carcinoma by targeting WNT2. Am J Transl Res 2019; 11:4976-4983. [PMID: 31497214 PMCID: PMC6731429] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 07/13/2019] [Indexed: 06/10/2023]
Abstract
The expression and function of microRNA (miR)-30a-3p in several types of human cancer have been explored. However, the biological function of miR-30a-3p in renal cell carcinoma (RCC) remains largely unknown. In this study, we demonstrate that expression of miR-30a-3p is down-regulated in RCC tissues compared to adjacent normal tissues. Furthermore, ectopic expression of miR-30a-3p significantly suppressed the proliferation, migration, and invasion of a human RCC cell line in vitro, while miR-30a-3p inhibited tumor growth in vivo as well. TargetScan software identified Wnt2 as a potential direct target of miR-30a-3p. To confirm this relationship, Wnt2 was ectopically expressed. The effects of miR-30a-3p on RCC cell proliferation and invasion were subsequently restored. Therefore, the results of this study support an anti-tumor role for miR-30a-3p in RCC progression which is potentially mediated via Wnt2.
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Affiliation(s)
- Lingqi Liu
- Department of Urology, Renmin Hospital of Wuhan University Wuhan 430060, Hubei, China
| | - Liang Chen
- Department of Urology, Renmin Hospital of Wuhan University Wuhan 430060, Hubei, China
| | - Tianpeng Wu
- Department of Urology, Renmin Hospital of Wuhan University Wuhan 430060, Hubei, China
| | - Huijun Qian
- Department of Urology, Renmin Hospital of Wuhan University Wuhan 430060, Hubei, China
| | - Sixing Yang
- Department of Urology, Renmin Hospital of Wuhan University Wuhan 430060, Hubei, China
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15
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Xiu DH, Liu GF, Yu SN, Li LY, Zhao GQ, Liu L, Li XF. Long non-coding RNA LINC00968 attenuates drug resistance of breast cancer cells through inhibiting the Wnt2/β-catenin signaling pathway by regulating WNT2. J Exp Clin Cancer Res 2019; 38:94. [PMID: 30791958 PMCID: PMC6385430 DOI: 10.1186/s13046-019-1100-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 02/11/2019] [Indexed: 01/17/2023]
Abstract
Background Breast cancer is one the most common cancers, making it the second leading cause of cancer-related death among women. Long non-coding RNAs (lncRNAs), with tightly regulated expression patterns, also serve as tumor suppressor during tumorigenesis. The present study aimed to elucidate the role of LINC00968 in breast cancer via WNT2-mediated Wnt2/β-catenin signaling pathway. Methods Breast cancer chip GSE26910 was utilized to identify differential expression in LINC00968 and WNT2. The possible relationship among LINC00968, transcriptional repressor HEY and WNT2 was analyzed and then verified. Effects of LINC00968 on activation of the Wnt2/β-catenin signaling pathway was also tested. Drug resistance, colony formation, cell migration, invasion ability and cell apoptosis after transfection were also determined. Furthermore, tumor xenograft in nude mice was performed to test tumor growth and weight in vivo. Results WNT2 expression exhibited at a high level, whereas LINC00968 at a low expression in breast cancer which was also associated with poor prognosis in patients. LINC00968 targeted and negatively regulated WNT2 potentially via HEY1. Either overexpressed LINC00968 or silenced inhibited activation of the Wnt2/β-catenin signaling pathway, thereby reducing drug resistance, decreasing colony formation ability, as well as suppressing migration and invasion abilities of breast cancer cells in addition to inducing apoptosis. Lastly, in vivo experiment suggested that LINC00968 overexpression also suppressed transplanted tumor growth in nude mice. Conclusion Collectively, overexpressed LINC00968 contributes to reduced drug resistance in breast cancer cells by inhibiting the activation of the Wnt2/β-catenin signaling pathway through silencing WNT2. This study offers a new target for the development of breast cancer treatment.
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Affiliation(s)
- Dian-Hui Xiu
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, 130033, People's Republic of China
| | - Gui-Feng Liu
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, 130033, People's Republic of China
| | - Shao-Nan Yu
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, 130033, People's Republic of China
| | - Long-Yun Li
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, No. 126, Xiantai Street, Changchun, 130033, Jilin Province, People's Republic of China
| | - Guo-Qing Zhao
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, No. 126, Xiantai Street, Changchun, 130033, Jilin Province, People's Republic of China
| | - Lin Liu
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, 130033, People's Republic of China
| | - Xue-Feng Li
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, No. 126, Xiantai Street, Changchun, 130033, Jilin Province, People's Republic of China.
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16
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Chen PH, Liu AJ, Ho KH, Chiu YT, Anne Lin ZH, Lee YT, Shih CM, Chen KC. microRNA-199a/b-5p enhance imatinib efficacy via repressing WNT2 signaling-mediated protective autophagy in imatinib-resistant chronic myeloid leukemia cells. Chem Biol Interact 2018; 291:144-51. [PMID: 29890129 DOI: 10.1016/j.cbi.2018.06.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/18/2018] [Accepted: 06/06/2018] [Indexed: 01/22/2023]
Abstract
Imatinib (IM) is a first-line therapeutic drug for chronic myeloid leukemia (CML), a hematological disease. Mutations in the BCR-ABL domain increase formation of IM resistance in CML. However, not all patients are BCR-ABL domain-mutant dependent. Investigating non-mutant mechanisms in the development of acquired IM resistance is a critical issue. We explored the mechanisms which influence IM efficacy and resistance in CML. Higher protective autophagy was identified in IM-resistant K562 (K562R) cells. Inhibition of autophagy by the inhibitors, chloroquine and 3-methyladenine, enhanced IM's efficacy in K562R cells. In addition, microRNA (miR)-199a/b-5p were downregulated in K562R cells compared to parent cells. Overexpression of miR-199a/b-5p reduced autophagy and induced cell apoptosis, resulting in enhanced IM's efficacy in K562R cells. Moreover, expression levels of the Wingless-type MMTV integration site family member 2 (WNT2), a positive regulator of autophagy, were significantly higher in K562R cells, and it was validated as a direct target gene of miR-199a/b-5p. Overexpressions of miR-199a/b-5p inhibited WNT2 downstream signaling. Furthermore, overexpression and knockdown of WNT2 influenced autophagy formation and CML drug sensitivity to IM. Overexpression of WNT2 could also reverse miR-199a/b-5p-enhanced IM efficacy in K562R cells. These results emphasized that miR-199a/b-5p inhibited autophagy via repressing WNT2 signaling and might provide novel therapeutic strategies for future IM-resistant CML therapy and drug development.
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Chien YL, Wu YY, Chen HI, Tsai WC, Chiu YN, Liu SK, Gau SSF. The central nervous system patterning gene variants associated with clinical symptom severity of autism spectrum disorders. J Formos Med Assoc 2017; 116:755-764. [PMID: 28081867 DOI: 10.1016/j.jfma.2016.11.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 02/03/2016] [Revised: 10/24/2016] [Accepted: 11/23/2016] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND/PURPOSE Central nervous system (CNS) patterning genes are recognized as candidate genes for autism spectrum disorders (ASDs) based on neuroimaging and neuropathological evidence. Several genes that regulate CNS development are shown to be associated with ASD. Our previous family-based association study also revealed that a specific haplotype of WNT2 (wingless-type MMTV integration site family member 2) gene was overtransmitted to probands with ASD. Whether the CNS patterning genes moderate the clinical phenotype of ASD is unclear. This study investigated the genetic associations of WNT2, engrailed 2 (EN2), and forkhead box P2 (FOXP2) with the clinical symptom severity. METHODS The sample included 391 patients (males, 88.3%; mean age±standard deviation, 9.5±4.4 years) diagnosed with ASDs. Tag single nucleotide polymorphisms (SNPs) of EN2, WNT2, and FOXP2 were genotyped. The single-locus and multilocus markers were tested for association. RESULTS We found that multilocus markers of WNT2 were associated with stereotyped behaviors whereas the markers of FOXP2 tended to be associated with social deficits. Moreover, an SNP of WNT2 showed a trend to be associated with less inattentive symptoms. CONCLUSION Our findings that WNT2 and FOXP2 may moderate the clinical phenotypes of ASD provide evidence to support the possible universal effect of WNT2 and FOXP2 on neurodevelopmental symptom dimensions. Such findings warrant further validation in other independent samples. TRIAL REGISTRATION Clinical trial registration identifier: NCT00494754.
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Affiliation(s)
- Yi-Ling Chien
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yu-Yu Wu
- Department of Psychiatry, Chang-Gung Memorial Hospital, Taoyuan, Taiwan
| | - Hsin-I Chen
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Wen-Che Tsai
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Yen-Nan Chiu
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Shih-Kai Liu
- Department of Child and Adolescent Psychiatry, Taoyuan Psychiatric Center, Ministry of Health and Welfare, Taoyuan, Taiwan
| | - Susan Shur-Fen Gau
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Psychology, School of Occupational Therapy, Graduate Institute of Brain and Mind Sciences, Graduate Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan.
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Seko Y, Azuma N, Yokoi T, Kami D, Ishii R, Nishina S, Toyoda M, Shimokawa H, Umezawa A. Anteroposterior Patterning of Gene Expression in the Human Infant Sclera: Chondrogenic Potential and Wnt Signaling. Curr Eye Res 2016; 42:145-154. [PMID: 27336854 DOI: 10.3109/02713683.2016.1143015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Purpose/Aim: We sought to identify the anteroposterior spatial gene expression hierarchy in the human sclera to develop a hypothesis for axial elongation and deformity of the eyeball. MATERIALS AND METHODS We analyzed the global gene expression of human scleral cells derived from distinct parts of the human infant sclera obtained from surgically enucleated eyes with retinoblastoma, using Affymetrix GeneChip oligonucleotide arrays, and compared, in particular, gene expression levels between the anterior and posterior parts of the sclera. The ages of three donors were 10M, 4M, and 1Y9M. RESULTS K-means clustering analysis of gene expression revealed that expression levels of cartilage-associated genes such as COLXIA and ACAN increased from the anterior to the posterior part of the sclera. Microarray analyses and RT-PCR data showed that the expression levels of MGP, COLXIA, BMP4, and RARB were significantly higher in the posterior than in the anterior sclera of two independent infant eyes. Conversely, expression levels of WNT2, DKK2, GREM1, and HOXB2 were significantly higher in the anterior sclera. Among several Wnt-family genes examined, WNT2B was found to be expressed at a significantly higher level in the posterior sclera, and the reverse order was observed for WNT2. The results of luciferase reporter assays suggested that a GSK-3β inhibitor stimulated Wnt/β-catenin signaling particularly strongly in the posterior sclera. The expression pattern of RARB, a myopia-related gene, was similar in three independent eyes. CONCLUSIONS Chondrogenic potential was higher and Wnt/β-catenin signaling was more potently activated by a GSK-3β inhibitor in the posterior than in the anterior part of the human infant sclera. Although the differences in the gene expression profiles between the anterior and posterior sclera might be involved only in normal growth processes, this anteroposterior hierarchy in the sclera might contribute to disorders involving abnormal elongation and deformity of the eyeball, including myopia.
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Affiliation(s)
- Yuko Seko
- a Visual Functions Section, Department of Rehabilitation for Sensory Functions , Research Institute, National Rehabilitation Center for Persons with Disabilities , Saitama , Japan.,b Department of Reproductive Biology , Center for Regenerative Medicine, National Institute for Child Health and Development , Tokyo , Japan
| | - Noriyuki Azuma
- c Department of Ophthalmology , National Center for Child Health and Development , Tokyo , Japan
| | - Tadashi Yokoi
- c Department of Ophthalmology , National Center for Child Health and Development , Tokyo , Japan
| | - Daisuke Kami
- b Department of Reproductive Biology , Center for Regenerative Medicine, National Institute for Child Health and Development , Tokyo , Japan.,d Department of Regenerative Medicine , Kyoto Prefectural University of Medicine , Kyoto , Japan
| | - Ryuga Ishii
- b Department of Reproductive Biology , Center for Regenerative Medicine, National Institute for Child Health and Development , Tokyo , Japan
| | - Sachiko Nishina
- c Department of Ophthalmology , National Center for Child Health and Development , Tokyo , Japan
| | - Masashi Toyoda
- b Department of Reproductive Biology , Center for Regenerative Medicine, National Institute for Child Health and Development , Tokyo , Japan.,e Department of Vascular Medicine , Tokyo Metropolitan Institute of Gerontology , Tokyo , Japan
| | - Hitoyata Shimokawa
- a Visual Functions Section, Department of Rehabilitation for Sensory Functions , Research Institute, National Rehabilitation Center for Persons with Disabilities , Saitama , Japan.,f Department of Pediatric Dentistry , Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University , Tokyo , Japan
| | - Akihiro Umezawa
- b Department of Reproductive Biology , Center for Regenerative Medicine, National Institute for Child Health and Development , Tokyo , Japan
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Dudakovic A, Camilleri E, Riester SM, Lewallen EA, Kvasha S, Chen X, Radel DJ, Anderson JM, Nair AA, Evans JM, Krych AJ, Smith J, Deyle DR, Stein JL, Stein GS, Im HJ, Cool SM, Westendorf JJ, Kakar S, Dietz AB, van Wijnen AJ. High-resolution molecular validation of self-renewal and spontaneous differentiation in clinical-grade adipose-tissue derived human mesenchymal stem cells. J Cell Biochem 2015; 115:1816-28. [PMID: 24905804 DOI: 10.1002/jcb.24852] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [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: 05/12/2014] [Accepted: 05/23/2014] [Indexed: 12/24/2022]
Abstract
Improving the effectiveness of adipose-tissue derived human mesenchymal stromal/stem cells (AMSCs) for skeletal therapies requires a detailed characterization of mechanisms supporting cell proliferation and multi-potency. We investigated the molecular phenotype of AMSCs that were either actively proliferating in platelet lysate or in a basal non-proliferative state. Flow cytometry combined with high-throughput RNA sequencing (RNASeq) and RT-qPCR analyses validate that AMSCs express classic mesenchymal cell surface markers (e.g., CD44, CD73/NT5E, CD90/THY1, and CD105/ENG). Expression of CD90 is selectively elevated at confluence. Self-renewing AMSCs express a standard cell cycle program that successively mediates DNA replication, chromatin packaging, cyto-architectural enlargement, and mitotic division. Confluent AMSCs preferentially express genes involved in extracellular matrix (ECM) formation and cellular communication. For example, cell cycle-related biomarkers (e.g., cyclins E2 and B2, transcription factor E2F1) and histone-related genes (e.g., H4, HINFP, NPAT) are elevated in proliferating AMSCs, while ECM genes are strongly upregulated (>10-fold) in quiescent AMSCs. AMSCs also express pluripotency genes (e.g., POU5F1, NANOG, KLF4) and early mesenchymal markers (e.g., NES, ACTA2) consistent with their multipotent phenotype. Strikingly, AMSCs modulate expression of WNT signaling components and switch production of WNT ligands (from WNT5A/WNT5B/WNT7B to WNT2/WNT2B), while upregulating WNT-related genes (WISP2, SFRP2, and SFRP4). Furthermore, post-proliferative AMSCs spontaneously express fibroblastic, osteogenic, chondrogenic, and adipogenic biomarkers when maintained in confluent cultures. Our findings validate the biological properties of self-renewing and multi-potent AMSCs by providing high-resolution quality control data that support their clinical versatility.
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Affiliation(s)
- Amel Dudakovic
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota
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