1
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Xu M, Jiang B, Man Z, Zhu H. TRIM37 promotes gallbladder cancer proliferation by activating the Wnt/β-catenin pathway via ubiquitination of Axin1. Transl Oncol 2023; 35:101732. [PMID: 37379772 DOI: 10.1016/j.tranon.2023.101732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/14/2023] [Accepted: 06/21/2023] [Indexed: 06/30/2023] Open
Abstract
BACKGROUND Gallbladder cancer (GBC) is among the most lethal malignancies in the world, with a prognosis that is extremely poor. The results of previous studies suggest that tripartite motif containing 37 (TRIM37) contributes to the progression of numerous types of cancer. Nevertheless, there is little knowledge about the molecular mechanisms and functions of TRIM37 in GBC. METHODS A clinical significance assessment was conducted on TRIM37 following its detection by immunohistochemistry. In vitro and in vivo functional assays were performed to investigate the role of TRIM37 in GBC. RESULTS In this study, TRIM37 is upregulated in GBC tissues, which is associated with decreased histological differentiation, advanced TNM stage, and shorter overall survival rates. In vitro, TRIM37 knockdown inhibited cell proliferation and promoted apoptosis, and in vivo, TRIM37 knockdown suppressed GBC growth. Contrary to this, cell proliferation is increased in GBC cells when overexpression of TRIM37 is expressed. Mechanistic investigations revealed that TRIM37 promotes GBC progression through activation of the Wnt/β‑catenin signaling pathway via degradation of Axin1. CONCLUSION The present study suggests that TRIM37 contributes to the development of GBC and thus provides an important biomarker for predicting GBC prognosis and an effective target for therapeutic intervention.
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Affiliation(s)
- Ming Xu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Bowen Jiang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Zhongran Man
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Hongyi Zhu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China; Department of Biliary-Pancreatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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2
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Iyer AS, Shaik MR, Raufman JP, Xie G. The Roles of Zinc Finger Proteins in Colorectal Cancer. Int J Mol Sci 2023; 24:10249. [PMID: 37373394 DOI: 10.3390/ijms241210249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
Despite colorectal cancer remaining a leading worldwide cause of cancer-related death, there remains a paucity of effective treatments for advanced disease. The molecular mechanisms underlying the development of colorectal cancer include altered cell signaling and cell cycle regulation that may result from epigenetic modifications of gene expression and function. Acting as important transcriptional regulators of normal biological processes, zinc finger proteins also play key roles in regulating the cellular mechanisms underlying colorectal neoplasia. These actions impact cell differentiation and proliferation, epithelial-mesenchymal transition, apoptosis, homeostasis, senescence, and maintenance of stemness. With the goal of highlighting promising points of therapeutic intervention, we review the oncogenic and tumor suppressor roles of zinc finger proteins with respect to colorectal cancer tumorigenesis and progression.
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Affiliation(s)
- Aishwarya S Iyer
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Mohammed Rifat Shaik
- Department of Medicine, University of Maryland Medical Center Midtown Campus, Baltimore, MD 21201, USA
| | - Jean-Pierre Raufman
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- VA Maryland Healthcare System, Baltimore, MD 21201, USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Guofeng Xie
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- VA Maryland Healthcare System, Baltimore, MD 21201, USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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3
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Zheng Y, Zhang H, Sun H. Metformin inhibits the proliferation and invasion of ovarian cancer cells by suppressing TRIM37-induced TRAF2 ubiquitination. Cancer Sci 2022; 113:3776-3786. [PMID: 35950370 PMCID: PMC9633302 DOI: 10.1111/cas.15524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/29/2022] [Accepted: 08/05/2022] [Indexed: 11/16/2022] Open
Abstract
Ovarian cancer is the leading cause of death in gynecological malignancies worldwide. Our previous studies have proved that metformin inhibited the proliferation and invasion of ovarian cancer in vitro and in vivo. However, the underlying mechanisms have not been fully elucidated. Immunohistochemistry was carried out to detect the expression of tripartite motif‐containing 37 (TRIM37), Ki‐67, and MMP‐9 in ovarian cancer and normal tissues. The influence of TRIM37 on the proliferation and invasion of ovarian cancer cells was verified by the real‐time cellular analysis proliferation test, colony formation test, and Transwell assay. Western blot analysis and immunoprecipitation were used to detect the expression of the nuclear factor‐κB (NF‐κB) pathway and the interaction between TRIM37 and tumor necrosis factor receptor‐associated factor 2 (TRAF2). Ubiquitination detection was carried out to detect the ubiquitination level of TRAF2. The present study revealed that TRIM37 expression was significantly increased in ovarian cancer tissues compared with normal control tissues, and its overexpression was closely associated with proliferation and metastasis. Metformin inhibited the NF‐κB signaling pathway by downregulating TRIM37. Metformin also inhibited the ubiquitination of TRAF2 induced by TRIM37 overexpression. Metformin inhibits the proliferation and invasion of ovarian cancer cells by suppressing TRIM37‐induced TRAF2 ubiquitination.
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Affiliation(s)
- Ya Zheng
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, P. R. China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, P. R. China
| | - Haiyan Zhang
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, P. R. China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, P. R. China
| | - Hong Sun
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, P. R. China
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4
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Cui G, Gao Z, Chang S, Narwade N, Chen Y, Poudel B, Lei KMK, Zhang W, Li G, Poon TCW, Cheung E. TRIM37 Augments AP-2γ Transcriptional Activity and Cellular Localization via K63-linked Ubiquitination to Drive Breast Cancer Progression. Int J Biol Sci 2022; 18:4316-4328. [PMID: 35864973 PMCID: PMC9295074 DOI: 10.7150/ijbs.69466] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 05/09/2022] [Indexed: 11/26/2022] Open
Abstract
Activator Protein 2 gamma (AP-2γ) is a master transcription factor that plays a critical role in the development and progression of breast cancer. However, the underlying mechanism is still unclear. Herein, using a proteomics approach, we identified Tripartite motif-containing 37 (TRIM37) as a novel coactivator of AP-2γ-mediated transcription in breast cancer cells. We demonstrate that TRIM37 facilitates AP-2γ chromatin binding to directly regulate the AP-2γ mediated transcriptional program. We also show that TRIM37 achieves this by stimulating K63 chain-linked ubiquitination of AP-2γ, promoting protein localization from the cytoplasm to the nucleus. In clinical analyses, we find TRIM37 is upregulated in multiple breast cancer datasets, supporting our findings that the TRIM37-AP-2γ interaction is essential for breast cancer tumor growth. Overall, our work reveals that TRIM37 is an oncogenic coactivator of AP-2γ in breast cancer and provides a novel therapeutic target for treating the disease.
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Affiliation(s)
- Guimei Cui
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR, China.,Centre for Precision Medicine Research and Training, Faculty of Health Sciences, University of Macau, Macau SAR, China.,MoE Frontiers Science Center for Precision Oncology, University of Macau, Macau SAR, China.,Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Zhuoran Gao
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR, China.,Centre for Precision Medicine Research and Training, Faculty of Health Sciences, University of Macau, Macau SAR, China.,MoE Frontiers Science Center for Precision Oncology, University of Macau, Macau SAR, China.,Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Shiehong Chang
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR, China.,Centre for Precision Medicine Research and Training, Faculty of Health Sciences, University of Macau, Macau SAR, China.,Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Nitin Narwade
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR, China.,Centre for Precision Medicine Research and Training, Faculty of Health Sciences, University of Macau, Macau SAR, China.,MoE Frontiers Science Center for Precision Oncology, University of Macau, Macau SAR, China.,Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Yitian Chen
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR, China.,Centre for Precision Medicine Research and Training, Faculty of Health Sciences, University of Macau, Macau SAR, China.,MoE Frontiers Science Center for Precision Oncology, University of Macau, Macau SAR, China.,Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Barun Poudel
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR, China.,Centre for Precision Medicine Research and Training, Faculty of Health Sciences, University of Macau, Macau SAR, China.,Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Kate M K Lei
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR, China.,Centre for Precision Medicine Research and Training, Faculty of Health Sciences, University of Macau, Macau SAR, China.,MoE Frontiers Science Center for Precision Oncology, University of Macau, Macau SAR, China.,Pilot Laboratory, University of Macau, Macau SAR, China.,Institute of Translational Medicine, University of Macau, Macau SAR, China.,Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Weibo Zhang
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR, China.,Centre for Precision Medicine Research and Training, Faculty of Health Sciences, University of Macau, Macau SAR, China.,MoE Frontiers Science Center for Precision Oncology, University of Macau, Macau SAR, China.,Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Gang Li
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR, China.,Centre for Precision Medicine Research and Training, Faculty of Health Sciences, University of Macau, Macau SAR, China.,MoE Frontiers Science Center for Precision Oncology, University of Macau, Macau SAR, China.,Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Terence C W Poon
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR, China.,Centre for Precision Medicine Research and Training, Faculty of Health Sciences, University of Macau, Macau SAR, China.,MoE Frontiers Science Center for Precision Oncology, University of Macau, Macau SAR, China.,Pilot Laboratory, University of Macau, Macau SAR, China.,Institute of Translational Medicine, University of Macau, Macau SAR, China.,Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Edwin Cheung
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR, China.,Centre for Precision Medicine Research and Training, Faculty of Health Sciences, University of Macau, Macau SAR, China.,MoE Frontiers Science Center for Precision Oncology, University of Macau, Macau SAR, China.,Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
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5
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Li D, Zhang Z. TRIM37 promotes the aggressiveness of ovarian cancer cells and increases c-Myc expression by binding to HUWE1. Arch Biochem Biophys 2022; 728:109372. [DOI: 10.1016/j.abb.2022.109372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 07/18/2022] [Accepted: 07/25/2022] [Indexed: 12/14/2022]
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6
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Sivunen J, Karlberg S, Kivisaari R, Lohi J, Karlberg N, Jokinen E, Sarkola T, Jahnukainen T, Lipsanen‐Nyman M, Jalanko H. Liver pathology and biochemistry in patients with mutations in TRIM37 gene (Mulibrey nanism). Liver Int 2022; 42:1369-1378. [PMID: 35220664 PMCID: PMC9545472 DOI: 10.1111/liv.15213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 02/01/2022] [Accepted: 02/16/2022] [Indexed: 02/13/2023]
Abstract
BACKGROUND AND AIMS Mulibrey nanism (MUL) is a multiorgan disease caused by recessive mutations in the TRIM37 gene. Chronic heart failure and hepatopathy are major determinants of prognosis in MUL patients, which prompted us to study liver biochemistry and pathology in a national cohort of MUL patients. METHODS Clinical, laboratory and imaging data were collected in a cross-sectional survey and retrospectively from hospital records. Liver histology and immunohistochemistry for 10 biomarkers were assessed. RESULTS Twenty-one MUL patients (age 1-51 years) with tumour suspicion showed moderate congestion, steatosis and fibrosis in liver biopsies and marginally elevated levels of serum GGT, AST, ALT and AST to platelet ratio index (APRI) in 20%-66%. Similarly, GGT, AST, ALT and APRI levels were moderately elevated in 12%-69% of 17 MUL patients prior to pericardiectomy. In a cross-sectional evaluation of 36 MUL outpatients, GGT, total bilirubin and galactose half-life (Gal½) correlated with age (r = 0.45, p = .017; r = 0.512, p = .007; r = 0.44, p = .03 respectively). The frequency of clearly abnormal serum values of 15 parameters analysed, however, was low even in patients with signs of restrictive cardiomyopathy. Transient elastography (TE) of the liver revealed elevated levels in 50% of patients with signs of heart failure and TE levels correlated with several biochemistry parameters. Biomarkers of fibrosis, sinusoidal capillarization and hepatocyte metaplasia showed increased expression in autopsy liver samples from 15 MUL patients. CONCLUSION Liver disease in MUL patients was characterized by sinusoidal dilatation, steatosis and fibrosis with individual progression to cirrhosis and moderate association of histology with cardiac function, liver biochemistry and elastography.
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Affiliation(s)
- Johanna Sivunen
- Children´s Hospital, University of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Susann Karlberg
- Children´s Hospital, University of Helsinki and Helsinki University HospitalHelsinkiFinland,Folkhälsan Research CenterHelsinkiFinland
| | - Reetta Kivisaari
- Children´s Hospital, University of Helsinki and Helsinki University HospitalHelsinkiFinland,Department of Pediatric Radiology, HUS Medical Imaging CentreUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Jouko Lohi
- Department of PathologyUniversity of HelsinkiHelsinkiFinland
| | - Niklas Karlberg
- Children´s Hospital, University of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Eero Jokinen
- Children´s Hospital, University of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Taisto Sarkola
- Children´s Hospital, University of Helsinki and Helsinki University HospitalHelsinkiFinland,Minerva Foundation Institute for Medical ResearchHelsinkiFinland
| | - Timo Jahnukainen
- Children´s Hospital, University of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Marita Lipsanen‐Nyman
- Children´s Hospital, University of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Hannu Jalanko
- Children´s Hospital, University of Helsinki and Helsinki University HospitalHelsinkiFinland
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7
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TRIM37 Promotes Pancreatic Cancer Progression through Modulation of Cell Growth, Migration, Invasion, and Tumor Immune Microenvironment. Int J Mol Sci 2022; 23:ijms23031176. [PMID: 35163097 PMCID: PMC8835669 DOI: 10.3390/ijms23031176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 01/19/2022] [Accepted: 01/19/2022] [Indexed: 12/11/2022] Open
Abstract
TRIM37 dysregulation has been observed in several cancer types, implicating its possible role in tumorigenesis. However, the role of TRIM37 in pancreatic cancer progression remains unclear. In the present study, we observed that TRIM37 knockdown resulted in reduced proliferation, clonogenicity, migration, and invasion ability of pancreatic cancer cells. Furthermore, an in vivo study using an orthotopic syngeneic animal model further confirmed that reduced expression of TRIM37 in cancer cells suppressed tumor growth in vivo. Moreover, in mice bearing TRIM37 knockdown pancreatic cancer cells, the proportion of CD11b+F4/80+MHCIIlow immunosuppressive macrophages was significantly reduced in tumor milieu, which might be due to the regulatory role of TRIM37 in cytokine production by pancreatic cancer cells. Collectively, these findings suggest a key role of TRIM37 in promoting pancreatic cancer progression.
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8
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Miao C, Liang C, Li P, Liu B, Qin C, Yuan H, Liu Y, Zhu J, Cui Y, Xu A, Wang S, Su S, Li J, Shao P, Wang Z. TRIM37 orchestrates renal cell carcinoma progression via histone H2A ubiquitination-dependent manner. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:195. [PMID: 34130705 PMCID: PMC8204444 DOI: 10.1186/s13046-021-01980-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 05/12/2021] [Indexed: 01/02/2023]
Abstract
Background Ubiquitylation modification is one of the multiple post-transcriptional process to regulate cellular physiology, including cell signaling, cycle regulation, DNA repair and transcriptional regulation. Members of TRIM family proteins could be defined as E3 ubiquitin ligases as they contain a RING-finger domain, and alterations of TRIM proteins are involved into a broad range of diverse disorders including cancer. TRIM37 is a novel discovered E3 ubiquitin ligase and acts as a oncoprotein in multiple human neoplasms, however its biological role in RCC still remains elusive. Methods RCC microarray chips and public datasets were screened to identify novel TRIMs member as TRIM37, which was dysregulated in RCC. Gain or loss of functional cancer cell models were constructed, and in vitro and in vivo assays were performed to elucidate its tumorigenic phenotypes. Interactive network analyses were utilized to define intrinsic mechanism. Results We identified TRIM37 was upregulated in RCC tumors, and its aberrant function predicted aggressive neoplastic phenotypes, poorer survival endings. TRIM37 promoted RCC cells EMT and malignant progression via TGF-β1 signaling activation, as a consequence of directly mediated by ubiquitinating-H2A modifications. Conclusions Our findings identified a previously unappreciated role of TRIM37 in RCC progression and prognostic prediction. Importantly, we declared a novel ubiquitination-dependent link between TRIM ubiquitin ligases and TGF-β1 signaling in regulating cancerous malignancies. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-01980-0.
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Affiliation(s)
- Chenkui Miao
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Chao Liang
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Pu Li
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Bianjiang Liu
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Chao Qin
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Han Yuan
- Center for Quantitative Medicine, Duke-NUS Medical School, National University of Singapore, Singapore, SG, 169857, Singapore
| | - Yiyang Liu
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Jundong Zhu
- Department of Urology, The First People's Hospital of Changzhou, Changzhou, 213003, China
| | - Yankang Cui
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Aiming Xu
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Shangqian Wang
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Shifeng Su
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Jie Li
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Pengfei Shao
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Zengjun Wang
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
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9
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Zhao G, Liu C, Wen X, Luan G, Xie L, Guo X. The translational values of TRIM family in pan-cancers: From functions and mechanisms to clinics. Pharmacol Ther 2021; 227:107881. [PMID: 33930453 DOI: 10.1016/j.pharmthera.2021.107881] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 02/08/2023]
Abstract
Cancer is the second leading cause of human death across the world. Tripartite motif (TRIM) family, with E3 ubiquitin ligase activities in majority of its members, is reported to be involved in multiple cellular processes and signaling pathways. TRIM proteins have critical effects in the regulation of biological behaviors of cancer cells. Here, we discussed the current understanding of the molecular mechanism of TRIM proteins regulation of cancer cells. We also comprehensively reviewed published studies on TRIM family members as oncogenes or tumor suppressors in the oncogenesis, development, and progression of a variety of types of human cancers. Finally, we highlighted that certain TRIM family members are potential molecular biomarkers for cancer diagnosis and prognosis, and potential therapeutic targets.
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Affiliation(s)
- Guo Zhao
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Chuan Liu
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Xin Wen
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Gan Luan
- Department of Mathematical Sciences, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Longxiang Xie
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China.
| | - Xiangqian Guo
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China.
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10
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Song TF, Xu AL, Chen XH, Gao JY, Gao F, Kong XC. Circular RNA circRNA_101996 promoted cervical cancer development by regulating miR-1236-3p/TRIM37 axis. Kaohsiung J Med Sci 2021; 37:547-561. [PMID: 33728810 DOI: 10.1002/kjm2.12378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/26/2020] [Accepted: 02/16/2021] [Indexed: 12/27/2022] Open
Abstract
Circular RNAs (circRNAs) appear to be significant modulators in various physiological processes. Recently, it is found that circRNA_101996 exerts important roles in various cancers. Our previous studies showed that circRNA_101996 promoted cervical cancer growth and metastasis by regulating miR-8075/TPX2. However, the potential regulatory role of circRNA_101996 in cervical cancer still needs further investigation. Our results in this study suggested that circRNA_101996 was over-expressed in cervical cancer patients. circRNA_101996 up-regulation remarkably assisted cell proliferation, cell cycle progression, and cell migration in cervical cancer, while circRNA_101996 knockdown exerted the inverse effects. The molecular investigations indicated that circRNA_101996 could increase the expression level of miR-1236-3p, tripartite motif-containing 37 (TRIM37), through binding to miR-1236-3p and reducing its expression. Moreover, in vivo results demonstrated that circRNA_101996 shRNA can function as a tumor suppressor through down-regulating TRIM37 in cervical cancer. In conclusion, our data indicated that circRNA_101996/miR-1236-3p/TRIM37 axis accelerated cervical cancer development, providing novel insights into cervical cancer diagnosis and treatment.
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Affiliation(s)
- Tie-Fang Song
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ai-Li Xu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiu-Hui Chen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jia-Yin Gao
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Fei Gao
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xian-Chao Kong
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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11
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Nishibeppu K, Komatsu S, Kiuchi J, Kishimoto T, Takashima Y, Shoda K, Arita T, Kosuga T, Konishi H, Shiozaki A, Kubota T, Okamoto K, Fujiwara H, Tsuda H, Otsuji E. TRIM37 contributes to malignant outcomes and CDDP resistance in gastric cancer. J Cancer 2021; 12:316-325. [PMID: 33391428 PMCID: PMC7739001 DOI: 10.7150/jca.47577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 10/25/2020] [Indexed: 12/12/2022] Open
Abstract
Background: TRIM37 (Tripartite Motif Containing 37) is an E3 ubiquitin ligase for histone H2A and inhibits transcription in several genes. However, it is not known whether it plays a role in gastric cancer (GC). In this study, we tested whether TRIM37 acts as a cancer-promoting factor by being overexpressed in GC. Methods: We analyzed GC cell lines and 124 primary tumors, which were curatively resected in our hospital between 2001 and 2003. Results: Overexpression of the TRIM37 protein was detected in almost all GC cell lines and GC samples (76 out of 124 cases) and was significantly correlated with lymphatic and venous invasion, advanced T-Stage, N-Stage, histology and high recurrence rate. Patients with TRIM37 overexpressing tumors had a worse survival rate than those with non-expressing tumors (P=0.0057). Moreover, TRIM37 positivity was identified as an independent factor predicting worse outcomes (P=0.018, Hazard ratio 3.41). The apoptotic cell analysis showed that the knockdown of TRIM37 increased apoptosis in comparison with the control. In TRIM37 overexpressing GC cells, knockdown of TRIM37 suppressed the migration and invasion. Conclusions: TRIM37 plays a crucial role in tumor malignant potential through its overexpression and highlight its usefulness as a prognostic factor and potential therapeutic target in GC.
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Affiliation(s)
- Keiji Nishibeppu
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - Shuhei Komatsu
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - Jun Kiuchi
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - Takuma Kishimoto
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - Yusuke Takashima
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - Katsutoshi Shoda
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - Tomohiro Arita
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - Toshiyuki Kosuga
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - Hirotaka Konishi
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - Atsushi Shiozaki
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - Takeshi Kubota
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - Kazuma Okamoto
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - Hitoshi Fujiwara
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
| | - Hitoshi Tsuda
- Department of Pathology, National Cancer Center Hospital, Tokyo, Japan.,Department of Basic Pathology, National Defense Medical College, Tokorozawa, Japan
| | - Eigo Otsuji
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachihirokoji, Kamigyo-ku, Kyoto, Japan
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12
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Xie H, Xie D, Zhang J, Jin W, Li Y, Yao J, Pan Z, Xie D. ROS/NF-κB Signaling Pathway-Mediated Transcriptional Activation of TRIM37 Promotes HBV-Associated Hepatic Fibrosis. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 22:114-123. [PMID: 32916597 PMCID: PMC7490448 DOI: 10.1016/j.omtn.2020.08.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/31/2020] [Accepted: 08/14/2020] [Indexed: 12/19/2022]
Abstract
Hepatic fibrosis is an inflammatory response that leads to liver cirrhosis in the most advanced condition. Liver cirrhosis is a leading cause of deaths associated with liver diseases; hence, understanding the underlying mechanisms of hepatic fibrosis is critical to develop effective therapies. Tripartite motif (TRIM) family proteins have been shown to be involved in liver fibrosis; however, the exact role of several TRIM proteins in this process remained unexplored. In this study, we investigated the role of TRIM37 in hepatitis B virus (HBV)-associated hepatic fibrosis. We analyzed TRIM37 expression in hepatic fibrosis patients and performed functional and mechanistic studies in tissue culture and mouse models to identify the role of TRIM37 in hepatic fibrosis. We found an increased expression of TRIM37 in hepatic fibrosis patients. Mechanistically, we showed that TRIM37 physically interacts with SMAD7 and promotes ubiquitination-mediated degradation of SMAD7, and that SMAD7 is a key mediator of TRM37-induced hepatic fibrosis. Furthermore, we showed nuclear factor κB (NF-κB) activation mediated by reactive oxygen species (ROS) is necessary for the transcriptional induction of TRIM37 during HBV infection. Our study shows TRIM37 as an important promoter of HBV-associated hepatic fibrosis.
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Affiliation(s)
- Haina Xie
- School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Dongyu Xie
- Department of Spleen-Stomach, Zhenjiang Affiliated Hospital of Nanjing University of Chinese Medicine, Zhenjiang 212003, China; Department of Spleen-Stomach, Zhenjiang Hospital of Traditional Chinese Medicine, Zhenjiang 212003, China
| | - Jingxian Zhang
- Department of Pharmacy, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai 200052, China
| | - Wenye Jin
- Department of Pharmacy, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai 200052, China
| | - Yue Li
- Department of Pharmacy, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai 200052, China
| | - Jun Yao
- Department of Pharmacy, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai 200052, China
| | - Zhiqiang Pan
- School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Donghao Xie
- Department of Pharmacy, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai 200052, China; Institute of I Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai 200052, China.
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13
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Zhu H, Chen Y, Zhang J, Qian C, Qiu W, Shen H, Shen Z. Knockdown of TRIM37 Promotes Apoptosis and Suppresses Tumor Growth in Gastric Cancer by Inactivation of the ERK1/2 Pathway. Onco Targets Ther 2020; 13:5479-5491. [PMID: 32606764 PMCID: PMC7297455 DOI: 10.2147/ott.s233906] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 05/20/2020] [Indexed: 12/23/2022] Open
Abstract
Objective Gastric cancer (GC), a malignant tumor of the gastric mucosa, is the second leading cause of cancer deaths worldwide. Although the incidence and mortality of gastric cancer have been reduced in the US and elsewhere, it is still a major public health concern. In this study, we attempted to investigate the function of tripartite motif-containing protein 37 (TRIM37) in GC cell lines in order to propose a new therapy for GC. Methods The expression of TRIM37 in GC patients and cell lines was detected by immunohistochemistry, real-time PCR and Western blotting analysis. After TRIM37 knockdown or overexpression, the cell cycle, proliferation and apoptosis, as well as the expression of related proteins, were detected. In addition, in vivo experiments on nude mice were performed. Results We found that TRIM37 expression was significantly elevated in tumor tissues of GC patients and GC cell lines, and patients with high expression of TRIM37 had a poor prognosis. Knockdown of TRIM37 in GC cells significantly inhibited cell proliferation and cell cycle progression, promoted apoptosis, increased cleaved caspase 3 and decreased c-myc and phosphorylation of protein kinase 1/2 (p-ERK1/2). Effects of TRIM37 overexpression were opposite to that of TRIM37 knockdown and were potently attenuated by an ERK1/2 inhibitor. In addition, an ERK1/2 agonist increased TRIM37 and p-ERK1/2 in a dose-dependent manner, and TRIM37 knockdown potently attenuated EGF-induced cell proliferation and expression of TRIM37 and p-ERK1/2. Interestingly, we found that TRIM37 overexpression did not affect the mRNA level of dual-specificity phosphatase 6 (DUSP6), but reduced its protein level in GC cells. Co-immunoprecipitation (Co-IP) analyses revealed that TRIM37 interacted with DUSP6, and TRIM37 overexpression enhanced DUSP6 ubiquitination in GC cells. In vivo experiments on nude mice showed the inhibitory effect of TRIM37 knockdown on tumor growth. Conclusion These findings suggest that TRIM37 may act as an oncogene in the growth of GC cells and illustrate its potential function as a target in the treatment of GC.
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Affiliation(s)
- Hongyi Zhu
- Department of General Surgery, South Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 201112, People's Republic of China
| | - Yuanwen Chen
- Department of General Surgery, South Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 201112, People's Republic of China
| | - Jie Zhang
- Department of General Surgery, South Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 201112, People's Republic of China
| | - Changlin Qian
- Department of General Surgery, South Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 201112, People's Republic of China
| | - Weiqing Qiu
- Department of General Surgery, South Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 201112, People's Republic of China
| | - Huojian Shen
- Department of General Surgery, South Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 201112, People's Republic of China
| | - Zhiyong Shen
- Department of General Surgery, South Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 201112, People's Republic of China
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Tripartite motif containing protein 37 involves in thrombin stimulated BV-2 microglial cell apoptosis and interleukin 1β release. Biochem Biophys Res Commun 2019; 516:1252-1257. [PMID: 31301768 DOI: 10.1016/j.bbrc.2019.06.158] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 06/28/2019] [Indexed: 11/21/2022]
Abstract
Intracerebral hemorrhage (ICH) is the most common of stroke with high mortality and severe morbidity. Peroxisome proliferator-activated receptor gamma (PPARγ) plays a neuronprotective role in ICH. In the current study, TRIM37 mRNA expression in peripheral blood mononuclear cells (PBMCs) was found to be increased in ICH patients compared to that in healthy controls (n = 15). TRIM37 bound to PPARγ and enhanced its ubiquitination in mouse microglial BV-2 cell line. According to previous studies, thrombin is produced in the brain instantaneously after ICH and triggers the activation of microglia. Here, thrombin induced TRIM37 expression, cell apoptosis and interleukin-1β (IL-1β) release in BV-2 cells, while TRIM37 knockdown partially reversed the effects of thrombin on BV-2 cells. TRIM37 overexpression showed similar effects as thrombin on BV-2 cells, and PPARγ agonist rosiglitazone abolished the effects of TRIM37. In summary, TRIM37 involved in apoptosis and IL-1β release in BV-2 microglia by regulating PPARγ ubiquitination. The present data established a potential biological role of TRIM37 in ICH-induced brain damage and may provide insight into the development of therapy strategies for ICH.
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15
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Brigant B, Metzinger-Le Meuth V, Rochette J, Metzinger L. TRIMming down to TRIM37: Relevance to Inflammation, Cardiovascular Disorders, and Cancer in MULIBREY Nanism. Int J Mol Sci 2018; 20:ijms20010067. [PMID: 30586926 PMCID: PMC6337287 DOI: 10.3390/ijms20010067] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/12/2018] [Accepted: 12/19/2018] [Indexed: 12/18/2022] Open
Abstract
TRIpartite motif (TRIM) proteins are part of the largest subfamilies of E3 ligases that mediate the transfer of ubiquitin to substrate target proteins. In this review, we focus on TRIM37 in the normal cell and in pathological conditions, with an emphasis on the MULIBREY (MUscle-LIver-BRain-EYe) genetic disorder caused by TRIM37 mutations. TRIM37 is characterized by the presence of a RING domain, B-box motifs, and a coiled-coil region, and its C-terminal part includes the MATH domain specific to TRIM37. MULIBREY nanism is a rare autosomal recessive caused by TRIM37 mutations and characterized by severe pre- and postnatal growth failure. Constrictive pericarditis is the most serious anomaly of the disease and is present in about 20% of patients. The patients have a deregulation of glucose and lipid metabolism, including type 2 diabetes, fatty liver, and hypertension. Puzzlingly, MULIBREY patients, deficient for TRIM37, are plagued with numerous tumors. Among non-MULIBREY patients affected by cancer, a wide variety of cancers are associated with an overexpression of TRIM37. This suggests that normal cells need an optimal equilibrium in TRIM37 expression. Finding a way to keep that balance could lead to potential innovative drugs for MULIBREY nanism, including heart condition and carcinogenesis treatment.
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Affiliation(s)
- Benjamin Brigant
- HEMATIM, EA4666, CURS, CHU Amiens Sud, Avenue René Laënnec, Salouel, F-80054 Amiens, France.
| | - Valérie Metzinger-Le Meuth
- INSERM U1148, Laboratory for Vascular Translational Science (LVTS), UFR SMBH, Université Paris 13-Sorbonne Paris Cité, 93017 Bobigny CEDEX, France.
| | - Jacques Rochette
- HEMATIM, EA4666, CURS, CHU Amiens Sud, Avenue René Laënnec, Salouel, F-80054 Amiens, France.
| | - Laurent Metzinger
- HEMATIM, EA4666, CURS, CHU Amiens Sud, Avenue René Laënnec, Salouel, F-80054 Amiens, France.
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16
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TRIM37 inhibits PDGF-BB-induced proliferation and migration of airway smooth muscle cells. Biomed Pharmacother 2018; 101:24-29. [PMID: 29477054 DOI: 10.1016/j.biopha.2018.02.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 02/05/2018] [Accepted: 02/13/2018] [Indexed: 12/12/2022] Open
Abstract
Tripartite motif 37 (TRIM37) belongs to the TRIM family of proteins and has been reported to be involved in the progression of asthma. However, the effects of TRIM37 on airway smooth muscle cells (ASMCs) proliferation and migration are still unknown. This study aimed to investigate the effects of TRIM37 on cell proliferation and migration in platelet-derived growth factor BB (PDGF-BB)-stimulated ASMCs, and the potential molecular mechanisms was also explored. Our data demonstrated that the expression of TRIM37 was significantly decreased in ASMCs stimulated with PDGF-BB. In addition, overexpression of TRIM37 efficiently suppressed PDGF-BB-induced ASMCs proliferation and migration. Furthermore, overexpression of TRIM37 obviously inhibited the protein expression levels of β-catenin, c-Myc and cyclinD1 in PDGF-BB-stimulated ASMCs. The Wnt/β-catenin pathway activator LiCl significantly reversed the inhibitory effects of TRIM37 on cell proliferation and migration in PDGF-BB-stimulated ASMCs. Taken together, these results demonstrate that TRIM37 inhibits the proliferation and invasion of ASMCs cultured with PDGF-BB through suppressing the Wnt/β-catenin signaling pathway.
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17
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Tang SL, Gao YL, Wen-Zhong H. Knockdown of TRIM37 suppresses the proliferation, migration and invasion of glioma cells through the inactivation of PI3K/Akt signaling pathway. Biomed Pharmacother 2018; 99:59-64. [PMID: 29324313 DOI: 10.1016/j.biopha.2018.01.054] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 12/12/2017] [Accepted: 01/05/2018] [Indexed: 12/14/2022] Open
Abstract
Tripartite motif 37 (TRIM37), a member of the TRIM protein family, was involved in the tumorigenesis of several types of cancer. However, the expression pattern and role of TRIM37 in glioma remain unclear. Therefore, the aim of the present study was to investigate the role of TRIM37 in glioma, and to determine the molecular mechanisms. Our results demonstrated that TRIM37 was highly expressed in human glioma tissues and cell liens. Additionally, knockdown of TRIM37 dramatically inhibited the proliferation, migration/invasion, and the epithelial-mesenchymal transition (EMT) phenotype in glioma cells. Furthermore, knockdown of TRIM37 significantly reduced the levels of phosphorylated PI3K and Akt in U87MG cells, and an activator of PI3K/Akt signaling (SC79) partly reversed the inhibitory effects of si-TRIM37 on glioma cell proliferation and migration. Taken together, our results demonstrated that TRIM37 functions as an oncogene in the development and progression of glioma. TRIM37 knockdown inhibited the proliferation and invasion of human glioma cells at least in part through the inactivation of PI3K/Akt signaling pathway.
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Affiliation(s)
- Shi-Lei Tang
- Department of Neurosurgery, Huaihe Hospital of Henan University, Kaifeng 475000, Henan Province, China
| | - Yuan-Lin Gao
- Department of Neurology, Kaifeng Central Hospital, Kaifeng 475000, Henan Province, China
| | - Hu Wen-Zhong
- Department of Neurosurgery, Huaihe Hospital of Henan University, Kaifeng 475000, Henan Province, China.
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