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Garcia-Garcia J, Berge AKM, Overå KS, Larsen KB, Bhujabal Z, Brech A, Abudu YP, Lamark T, Johansen T, Sjøttem E. TRIM27 is an autophagy substrate facilitating mitochondria clustering and mitophagy via phosphorylated TBK1. FEBS J 2023; 290:1096-1116. [PMID: 36111389 DOI: 10.1111/febs.16628] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/02/2022] [Accepted: 09/15/2022] [Indexed: 11/30/2022]
Abstract
Tripartite motif-containing protein 27 (TRIM27/also called RFP) is a multifunctional ubiquitin E3 ligase involved in numerous cellular functions, such as proliferation, apoptosis, regulation of the NF-kB pathway, endosomal recycling and the innate immune response. TRIM27 interacts directly with TANK-binding kinase 1 (TBK1) and regulates its stability. TBK1 in complex with autophagy receptors is recruited to ubiquitin chains assembled on the mitochondrial outer membrane promoting mitophagy. Here, we identify TRIM27 as an autophagy substrate, depending on ATG7, ATG9 and autophagy receptors for its lysosomal degradation. We show that TRIM27 forms ubiquitylated cytoplasmic bodies that co-localize with autophagy receptors. Surprisingly, we observed that induced expression of EGFP-TRIM27 in HEK293 FlpIn TRIM27 knockout cells mediates mitochondrial clustering. TRIM27 interacts with autophagy receptor SQSTM1/p62, and the TRIM27-mediated mitochondrial clustering is facilitated by SQSTM/p62. We show that phosphorylated TBK1 is recruited to the clustered mitochondria. Moreover, induced mitophagy activity is reduced in HEK293 FlpIn TRIM27 knockout cells, while re-introduction of EGFP-TRIM27 completely restores the mitophagy activity. Inhibition of TBK1 reduces mitophagy in HEK293 FlpIn cells and in the reconstituted EGFP-TRIM27-expressing cells, but not in HEK293 FlpIn TRIM27 knockout cells. Altogether, these data reveal novel roles for TRIM27 in mitophagy, facilitating mitochondrial clustering via SQSTM1/p62 and mitophagy via stabilization of phosphorylated TBK1 on mitochondria.
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Affiliation(s)
- Juncal Garcia-Garcia
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Anne Kristin McLaren Berge
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Katrine Stange Overå
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Kenneth Bowitz Larsen
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Zambarlal Bhujabal
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Andreas Brech
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Norway
| | - Yakubu Princely Abudu
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Trond Lamark
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Terje Johansen
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Eva Sjøttem
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
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2
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Targeting PTEN Regulation by Post Translational Modifications. Cancers (Basel) 2022; 14:cancers14225613. [PMID: 36428706 PMCID: PMC9688753 DOI: 10.3390/cancers14225613] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 11/07/2022] [Accepted: 11/11/2022] [Indexed: 11/17/2022] Open
Abstract
Phosphatidylinositol-3,4,5-triphosphate (PIP3) is a lipidic second messenger present at very low concentrations in resting normal cells. PIP3 levels, though, increase quickly and transiently after growth factor addition, upon activation of phosphatidylinositol 3-kinase (PI3-kinase). PIP3 is required for the activation of intracellular signaling pathways that induce cell proliferation, cell migration, and survival. Given the critical role of this second messenger for cellular responses, PIP3 levels must be tightly regulated. The lipid phosphatase PTEN (phosphatase and tensin-homolog in chromosome 10) is the phosphatase responsible for PIP3 dephosphorylation to PIP2. PTEN tumor suppressor is frequently inactivated in endometrium and prostate carcinomas, and also in glioblastoma, illustrating the contribution of elevated PIP3 levels for cancer development. PTEN biological activity can be modulated by heterozygous gene loss, gene mutation, and epigenetic or transcriptional alterations. In addition, PTEN can also be regulated by post-translational modifications. Acetylation, oxidation, phosphorylation, sumoylation, and ubiquitination can alter PTEN stability, cellular localization, or activity, highlighting the complexity of PTEN regulation. While current strategies to treat tumors exhibiting a deregulated PI3-kinase/PTEN axis have focused on PI3-kinase inhibition, a better understanding of PTEN post-translational modifications could provide new therapeutic strategies to restore PTEN action in PIP3-dependent tumors.
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Yu C, Rao D, Wang T, Song J, Zhang L, Huang W. Emerging roles of TRIM27 in cancer and other human diseases. Front Cell Dev Biol 2022; 10:1004429. [PMID: 36200036 PMCID: PMC9527303 DOI: 10.3389/fcell.2022.1004429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/05/2022] [Indexed: 12/24/2022] Open
Abstract
As a member of the TRIM protein family, TRIM27 is a RING-mediated E3 ubiquitin ligase that can mark other proteins for degradation. Its ubiquitination targets include PTEN, IκBα and p53, which allows it to regulate many signaling pathways to exert its functions under both physiological and pathological conditions, such as cell proliferation, differentiation and apoptosis. During the past decades, TRIM27 was reported to be involved in many diseases, including cancer, lupus nephritis, ischemia-reperfusion injury and Parkinson’s disease. Although the research interest in TRIM27 is increasing, there are few reviews about the diverse roles of this protein. Here, we systematically review the roles of TRIM27 in cancer and other human diseases. Firstly, we introduce the biological functions of TRIM27. Next, we focus on the roles of TRIM27 in cancer, including ovarian cancer, breast cancer and lung cancer. At the same time, we also describe the roles of TRIM27 in other human diseases, such as lupus nephritis, ischemia-reperfusion injury and Parkinson’s disease. Finally, we discuss the future directions of TRIM27 research, especially its potential roles in tumor immunity.
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Affiliation(s)
- Chengpeng Yu
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Dean Rao
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Tiantian Wang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Jia Song
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Jia Song, ; Lei Zhang, ; Wenjie Huang,
| | - Lei Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Hepatobiliary Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Shanxi Medical University, Jinzhong, China
- Tongji Medical College, Shanxi Tongji Hospital, Huazhong University of Science and Technology, Taiyuan, China
- *Correspondence: Jia Song, ; Lei Zhang, ; Wenjie Huang,
| | - Wenjie Huang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Jia Song, ; Lei Zhang, ; Wenjie Huang,
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4
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Yang Y, Zhu Y, Zhou S, Tang P, Xu R, Zhang Y, Wei D, Wen J, Thorne RF, Zhang XD, Guan JL, Liu L, Wu M, Chen S. TRIM27 cooperates with STK38L to inhibit ULK1-mediated autophagy and promote tumorigenesis. EMBO J 2022; 41:e109777. [PMID: 35670107 DOI: 10.15252/embj.2021109777] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 05/09/2022] [Accepted: 05/11/2022] [Indexed: 12/27/2022] Open
Abstract
Autophagy represents a fundamental mechanism for maintaining cell survival and tissue homeostasis in response to physiological and pathological stress. Autophagy initiation converges on the FIP200-ATG13-ULK1 complex wherein the serine/threonine kinase ULK1 plays a central role. Here, we reveal that the E3 ubiquitin ligase TRIM27 functions as a negative regulatory component of the FIP200-ATG13-ULK1 complex. TRIM27 directly polyubiquitinates ULK1 at K568 and K571 sites with K48-linked ubiquitin chains, with proteasomal turnover maintaining control over basal ULK1 levels. However, during starvation-induced autophagy, TRIM27 catalyzes non-degradative K6- and K11-linked ubiquitination of the serine/threonine kinase 38-like (STK38L) kinase. In turn, STK38L ubiquitination promotes its activation and phosphorylation of ULK1 at Ser495, rendering ULK1 in a permissive state for TRIM27-mediated hyper-ubiquitination of ULK1. This cooperative mechanism serves to restrain the amplitude and duration of autophagy. Further evidence from mouse models shows that basal autophagy levels are increased in Trim27 knockout mice and that Trim27 differentially regulates tumorigenesis and metastasis. Our study identifies a key role of STK38L-TRIM27-ULK1 signaling axis in negatively controlling autophagy with relevance established in human breast cancer.
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Affiliation(s)
- Yi Yang
- The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yifu Zhu
- The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shuai Zhou
- Translational Research Institute, Henan Provincial and Zhengzhou City Key Laboratory of Non-coding RNA and Cancer Metabolism, Henan International Join Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial People's Hospital, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Peipei Tang
- Institute of Medicinal Biotechnology, Jiangsu College of Nursing, Huai'an, China
| | - Ran Xu
- Institute of Medicinal Biotechnology, Jiangsu College of Nursing, Huai'an, China.,School of Biomedical Sciences and Pharmacy, The University of Newcastle, Newcastle, NSW, Australia
| | - Yuwei Zhang
- Translational Research Institute, Henan Provincial and Zhengzhou City Key Laboratory of Non-coding RNA and Cancer Metabolism, Henan International Join Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial People's Hospital, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Dongping Wei
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jian Wen
- Department of Breast Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Rick F Thorne
- Translational Research Institute, Henan Provincial and Zhengzhou City Key Laboratory of Non-coding RNA and Cancer Metabolism, Henan International Join Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial People's Hospital, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China.,School of Biomedical Sciences and Pharmacy, The University of Newcastle, Newcastle, NSW, Australia
| | - Xu Dong Zhang
- Translational Research Institute, Henan Provincial and Zhengzhou City Key Laboratory of Non-coding RNA and Cancer Metabolism, Henan International Join Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial People's Hospital, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China.,School of Biomedical Sciences and Pharmacy, The University of Newcastle, Newcastle, NSW, Australia
| | - Jun-Lin Guan
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Lianxin Liu
- The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Mian Wu
- The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Translational Research Institute, Henan Provincial and Zhengzhou City Key Laboratory of Non-coding RNA and Cancer Metabolism, Henan International Join Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial People's Hospital, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Song Chen
- Translational Research Institute, Henan Provincial and Zhengzhou City Key Laboratory of Non-coding RNA and Cancer Metabolism, Henan International Join Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial People's Hospital, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China.,Institute of Medicinal Biotechnology, Jiangsu College of Nursing, Huai'an, China
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5
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Integrated analysis reveals the molecular features of fibrosis in triple-negative breast cancer. Mol Ther Oncolytics 2022; 24:624-635. [PMID: 35284626 PMCID: PMC8898759 DOI: 10.1016/j.omto.2022.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 02/03/2022] [Indexed: 02/07/2023] Open
Abstract
Triple-negative breast cancer (TNBC) is an aggressive type of breast cancer. High fibrosis, marked by increased collagen fibers, is widespread in TNBC and correlated with tumor progression. However, the molecular features of fibrosis and why it results in a poor prognosis remain poorly understood. Based on multiomics datasets of TNBC, we evaluated the pathological fibrosis grade of 344 samples for further analysis. Genomic, transcriptomic, and immune changes were analyzed among different subgroups of fibrosis. High fibrosis was an independent adverse prognosis predictor and had interactions with low stromal tumor-infiltrating lymphocytes. Genomic analysis identified copy number gains of 6p22.2–6p22.1 (TRIM27) and 20q13.33 (CDH4) as genomic hallmarks of tumors with high fibrosis. Transcriptome analysis revealed the transforming growth factor-beta pathway and hypoxia pathway were key pro-oncogenic pathways in tumors with high fibrosis. Moreover, we systematically evaluate the relationship between fibrosis and different kinds of immune and stromal cells. Tumors with high fibrosis were characterized by an immunosuppressive tumor microenvironment with limited immune cell infiltration and increased fibroblasts. This study proposes new insight into the genomic and transcriptomic alterations potentially driving fibrosis. Moreover, fibrosis is related to an immunosuppressive tumor microenvironment that contributes to the poor prognosis.
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6
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Jafarzadeh A, Noori M, Sarrafzadeh S, Tamehri Zadeh SS, Nemati M, Chatrabnous N, Jafarzadeh S, Hamblin MR, Jafari Najaf Abadi MH, Mirzaei H. MicroRNA-383: A tumor suppressor miRNA in human cancer. Front Cell Dev Biol 2022; 10:955486. [PMID: 36313570 PMCID: PMC9608775 DOI: 10.3389/fcell.2022.955486] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 08/23/2022] [Indexed: 02/05/2023] Open
Abstract
Downregulated expression of anti-tumor miR-383 has been found in many kinds of cancer. MiR-383 family members can directly target the 3'-untranslated region (3'-UTR) of the mRNA of some pro-tumor genes to attenuate several cancer-related processes, including cell proliferation, invasion, migration, angiogenesis, immunosuppression, epithelial-mesenchymal transition, glycolysis, chemoresistance, and the development of cancer stem cells, whilst promoting apoptosis. Functionally, miR-383 operates as a tumor inhibitor miRNA in many types of cancer, including breast cancer, hepatocellular carcinoma, gastric cancer, pancreatic cancer, colorectal cancer, esophageal cancer, lung cancer, head and neck cancer, glioma, medulloblastoma, melanoma, prostate cancer, cervical cancer, oral squamous cell carcinoma, thyroid cancer, and B-cell lymphoma. Both pro-tumor and anti-tumor effects have been attributed to miR-383 in ovarian cancer. However, only the pro-tumor effects of miR-383 were reported in cholangiocarcinoma. The restoration of miR-383 expression could be considered a possible treatment for cancer. This review discusses the anti-tumor effects of miR-383 in human cancers, emphasizing their downstream target genes and potential treatment approaches.
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Affiliation(s)
- Abdollah Jafarzadeh
- Department of Immunology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
- *Correspondence: Abdollah Jafarzadeh, ; Mohammad Hassan Jafari Najaf Abadi, ; Hamed Mirzaei,
| | - Majid Noori
- Golestan Hospital Research Center, AJA University of Medical Sciences, Tehran, Iran
| | - Shaghayegh Sarrafzadeh
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Maryam Nemati
- Department of Immunology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
- Department of Hematology and Laboratory Sciences, School of Para-Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Nazanin Chatrabnous
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sara Jafarzadeh
- Student Research Committee, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Johannesburg, South Africa
| | - Mohammad Hassan Jafari Najaf Abadi
- Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- *Correspondence: Abdollah Jafarzadeh, ; Mohammad Hassan Jafari Najaf Abadi, ; Hamed Mirzaei,
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
- *Correspondence: Abdollah Jafarzadeh, ; Mohammad Hassan Jafari Najaf Abadi, ; Hamed Mirzaei,
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7
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Li S, Shi X, Li J, Zhou X. Pathogenicity of the MAGE family. Oncol Lett 2021; 22:844. [PMID: 34733362 PMCID: PMC8561213 DOI: 10.3892/ol.2021.13105] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 10/07/2021] [Indexed: 12/12/2022] Open
Abstract
The melanoma antigen gene (MAGE) protein family is a group of highly conserved proteins that share a common homology domain. Under normal circumstances, numerous MAGE proteins are only expressed in reproduction-related tissues; however, abnormal expression levels are observed in a variety of tumor tissues. The MAGE family consists of type I and II proteins, several of which are cancer-testis antigens that are highly expressed in cancer and serve a critical role in tumorigenesis. Therefore, this review will use the relationship between MAGEs and tumors as a starting point, focusing on the latest developments regarding the function of MAGEs as oncogenes, and preliminarily reveal their possible mechanisms.
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Affiliation(s)
- Sanyan Li
- Department of Pathology, Qianjiang Central Hospital, Qianjiang, Hubei 433100, P.R. China
| | - Xiang Shi
- Department of Pathology, Qianjiang Central Hospital, Qianjiang, Hubei 433100, P.R. China
| | - Jingping Li
- Department of Respiratory Medicine, Qianjiang Central Hospital, Qianjiang, Hubei 433100, P.R. China
| | - Xianrong Zhou
- Department of Pathology, Qianjiang Central Hospital, Qianjiang, Hubei 433100, P.R. China
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8
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Mohammadi A, Pour Abbasi MS, Khorrami S, Khodamoradi S, Mohammadi Goldar Z, Ebrahimzadeh F. The TRIM proteins in cancer: from expression to emerging regulatory mechanisms. Clin Transl Oncol 2021; 24:460-470. [PMID: 34643877 DOI: 10.1007/s12094-021-02715-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 09/23/2021] [Indexed: 12/15/2022]
Abstract
New clinical evidence suggests that dysregulation of the ubiquitin-mediated destruction of tumor suppressors or oncogene products is probably engaged in the etiology of leukemia and carcinoma. The superfamily of tripartite motif (TRIM)-containing protein family is among the biggest recognized single protein RING finger E3 ubiquitin ligases that are considered vital carcinogenesis regulators, which is not shocking since TRIM proteins are engaged in various biological processes, including cell growth, development, and differentiation; hence, TRIM proteins' alterations may influence apoptosis, cell proliferation, and transcriptional regulation. In this review article, the various mechanisms through which TRIM proteins exert their role in the most prevalent malignancies including lung, prostate, colorectal, liver, breast, brain cancer, and leukemia are summarized.
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Affiliation(s)
- A Mohammadi
- Department of Genetics Islamic, Azad University of Marand, Marand, Iran
| | | | - S Khorrami
- Tehran University of Medical Sciences, Tehran, Iran
| | - S Khodamoradi
- Department of Microbiology, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran
| | - Z Mohammadi Goldar
- Department of Medicine, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran
| | - F Ebrahimzadeh
- Department of Internal Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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9
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Xiao C, Zhang W, Hua M, Chen H, Yang B, Wang Y, Yang Q. TRIM27 interacts with Iκbα to promote the growth of human renal cancer cells through regulating the NF-κB pathway. BMC Cancer 2021; 21:841. [PMID: 34284744 PMCID: PMC8293539 DOI: 10.1186/s12885-021-08562-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 06/18/2021] [Indexed: 11/30/2022] Open
Abstract
Background The tripartite motif (TRIM) family proteins exhibit oncogenic roles in various cancers. The roles of TRIM27, a member of the TRIM super family, in renal cell carcinoma (RCC) remained unexplored. In the current study, we aimed to investigate the clinical impact and roles of TRIM27 in the development of RCC. Methods The mRNA levels of TRIM27 and Kaplan–Meier survival of RCC were analyzed from The Cancer Genome Atlas database. Real-time PCR and Western blotting were used to measure the mRNA and protein levels of TRIM27 both in vivo and in vitro. siRNA and TRIM27 were exogenously overexpressed in RCC cell lines to manipulate TRIM27 expression. Results We discovered that TRIM27 was elevated in RCC patients, and the expression of TRIM27 was closely correlated with poor prognosis. The loss of function and gain of function results illustrated that TRIM27 promotes cell proliferation and inhibits apoptosis in RCC cell lines. Furthermore, TRIM27 expression was positively associated with NF-κB expression in patients with RCC. Blocking the activity of NF-κB attenuated the TRIM27-mediated enhancement of proliferation and inhibition of apoptosis. TRIM27 directly interacted with Iκbα, an inhibitor of NF-κB, to promote its ubiquitination, and the inhibitory effects of TRIM27 on Iκbα led to NF-κB activation. Conclusions Our results suggest that TRIM27 exhibits an oncogenic role in RCC by regulating NF-κB signaling. TRIM27 serves as a specific prognostic indicator for RCC, and strategies targeting the suppression of TRIM27 function may shed light on future therapeutic approaches. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08562-5.
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Affiliation(s)
- Chengwu Xiao
- Department of Urology, Changhai Hospital, Naval Medical University, Changhai Road No.168, Yangpu District, Shanghai, 200433, People's Republic of China
| | - Wei Zhang
- Department of Urology, Changhai Hospital, Naval Medical University, Changhai Road No.168, Yangpu District, Shanghai, 200433, People's Republic of China
| | - Meimian Hua
- Department of Urology, Changhai Hospital, Naval Medical University, Changhai Road No.168, Yangpu District, Shanghai, 200433, People's Republic of China
| | - Huan Chen
- Department of Urology, Changhai Hospital, Naval Medical University, Changhai Road No.168, Yangpu District, Shanghai, 200433, People's Republic of China
| | - Bin Yang
- Department of Urology, Changhai Hospital, Naval Medical University, Changhai Road No.168, Yangpu District, Shanghai, 200433, People's Republic of China
| | - Ye Wang
- Department of Urology, Changhai Hospital, Naval Medical University, Changhai Road No.168, Yangpu District, Shanghai, 200433, People's Republic of China
| | - Qing Yang
- Department of Urology, Changhai Hospital, Naval Medical University, Changhai Road No.168, Yangpu District, Shanghai, 200433, People's Republic of China.
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10
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Wang W, Liu W. PCLasso: a protein complex-based, group lasso-Cox model for accurate prognosis and risk protein complex discovery. Brief Bioinform 2021; 22:6291946. [PMID: 34086850 DOI: 10.1093/bib/bbab212] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/08/2021] [Accepted: 05/15/2021] [Indexed: 12/12/2022] Open
Abstract
For high-dimensional expression data, most prognostic models perform feature selection based on individual genes, which usually lead to unstable prognosis, and the identified risk genes are inherently insufficient in revealing complex molecular mechanisms. Since most genes carry out cellular functions by forming protein complexes-basic representatives of functional modules, identifying risk protein complexes may greatly improve our understanding of disease biology. Coupled with the fact that protein complexes have been shown to have innate resistance to batch effects and are effective predictors of disease phenotypes, constructing prognostic models and selecting features with protein complexes as the basic unit should improve the robustness and biological interpretability of the model. Here, we propose a protein complex-based, group lasso-Cox model (PCLasso) to predict patient prognosis and identify risk protein complexes. Experiments on three cancer types have proved that PCLasso has better prognostic performance than prognostic models based on individual genes. The resulting risk protein complexes not only contain individual risk genes but also incorporate close partners that synergize with them, which may promote the revealing of molecular mechanisms related to cancer progression from a comprehensive perspective. Furthermore, a pan-cancer prognostic analysis was performed to identify risk protein complexes of 19 cancer types, which may provide novel potential targets for cancer research.
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Affiliation(s)
- Wei Wang
- Heilongjiang Institute of Technology, Harbin 150050, China
| | - Wei Liu
- School of Science at Heilongjiang Institute of Technology, Harbin 150050, China
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11
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Salas LA, Lundgren SN, Browne EP, Punska EC, Anderton DL, Karagas MR, Arcaro KF, Christensen BC. Prediagnostic breast milk DNA methylation alterations in women who develop breast cancer. Hum Mol Genet 2021; 29:662-673. [PMID: 31943067 PMCID: PMC7068171 DOI: 10.1093/hmg/ddz301] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 11/30/2019] [Accepted: 12/06/2019] [Indexed: 12/16/2022] Open
Abstract
Prior candidate gene studies have shown tumor suppressor DNA methylation in breast milk related with history of breast biopsy, an established risk factor for breast cancer. To further establish the utility of breast milk as a tissue-specific biospecimen for investigations of breast carcinogenesis, we measured genome-wide DNA methylation in breast milk from women with and without a diagnosis of breast cancer in two independent cohorts. DNA methylation was assessed using Illumina HumanMethylation450k in 87 breast milk samples. Through an epigenome-wide association study we explored CpG sites associated with a breast cancer diagnosis in the prospectively collected milk samples from the breast that would develop cancer compared with women without a diagnosis of breast cancer using linear mixed effects models adjusted for history of breast biopsy, age, RefFreeCellMix cell estimates, time of delivery, array chip and subject as random effect. We identified 58 differentially methylated CpG sites associated with a subsequent breast cancer diagnosis (q-value <0.05). Nearly all CpG sites associated with a breast cancer diagnosis were hypomethylated in cases compared with controls and were enriched for CpG islands. In addition, inferred repeat element methylation was lower in breast milk DNA from cases compared to controls, and cases exhibited increased estimated epigenetic mitotic tick rate as well as DNA methylation age compared with controls. Breast milk has utility as a biospecimen for prospective assessment of disease risk, for understanding the underlying molecular basis of breast cancer risk factors and improving primary and secondary prevention of breast cancer.
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Affiliation(s)
- Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, NH 03766, USA.,The Children's Environmental Health and Disease Prevention Research Center at Dartmouth, Hanover, NH 03766, USA
| | - Sara N Lundgren
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, NH 03766, USA.,The Children's Environmental Health and Disease Prevention Research Center at Dartmouth, Hanover, NH 03766, USA
| | - Eva P Browne
- Department of Veterinary & Animal Sciences, University of Massachusetts Amherst, Amherst, MA 01003, USA
| | - Elizabeth C Punska
- Department of Veterinary & Animal Sciences, University of Massachusetts Amherst, Amherst, MA 01003, USA
| | - Douglas L Anderton
- Department of Sociology, University of South Carolina, Columbus, SC 29208, USA
| | - Margaret R Karagas
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, NH 03766, USA.,The Children's Environmental Health and Disease Prevention Research Center at Dartmouth, Hanover, NH 03766, USA
| | - Kathleen F Arcaro
- Department of Veterinary & Animal Sciences, University of Massachusetts Amherst, Amherst, MA 01003, USA
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, NH 03766, USA.,Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH 03766, USA.,Department of Community and Family Medicine, Geisel School of Medicine at Dartmouth, Hanover, NH 03766, USA
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12
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TRIM27 Functions as a Novel Oncogene in Non-Triple-Negative Breast Cancer by Blocking Cellular Senescence through p21 Ubiquitination. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 22:910-923. [PMID: 33251042 PMCID: PMC7666371 DOI: 10.1016/j.omtn.2020.10.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 10/11/2020] [Indexed: 12/16/2022]
Abstract
In the current study, we aimed to explore the correlation between TRIM27 and breast cancer prognosis, as well as the functions of TRIM27 in breast cancer and their underlying mechanisms. Bioinformatics analyses were used to examine the correlation between TRIM27 and breast cancer prognosis. Moreover, TRIM27 knockdown and overexpression in breast cancer cells were performed to investigate its functions in breast cancer. Tamoxifen (TAM) was applied to evaluate the influence of TRIM27 on chemoresistance of breast cancer cells, while co-immunoprecipitation (coIP) was performed to identify the E3 ubiquitin ligase capability of TRIM27. High expression of TRIM27 was found in non-triple-negative breast cancer (non-TNBC) tumor tissues and was positively correlated with the mortality of non-TNBC patients. Moreover, TRIM27 could suppress non-TNBC cell apoptosis and senescence, promote cell viability and tumor growth, counteract the anti-cancer effects of TAM, and mediate ubiquitination of p21. In addition, EP300 could enhance the expression of TRIM27 and its transcription promoter H3K27ac. TRIM27, through ubiquitination of p21, might serve as a prognostic biomarker for non-TNBC prognosis. TRIM27 functions as a novel oncogene in non-TNBC cellular processes, especially suppressing cell senescence and interfering with non-TNBC chemoresistance.
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13
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Liu S, Tian Y, Zheng Y, Cheng Y, Zhang D, Jiang J, Li S. TRIM27 acts as an oncogene and regulates cell proliferation and metastasis in non-small cell lung cancer through SIX3-β-catenin signaling. Aging (Albany NY) 2020; 12:25564-25580. [PMID: 33264103 PMCID: PMC7803540 DOI: 10.18632/aging.104163] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 08/27/2020] [Indexed: 12/16/2022]
Abstract
The Wnt/β-catenin pathway plays vital roles in diverse biological processes, including cell differentiation, proliferation, migration, and insulin sensitivity. A recent study reported that the DNA-binding transcriptional factor SIX3 is essential during embryonic development in vertebrates and capable of downregulating target genes of the Wnt/β-catenin pathway in lung cancer, indicating negative regulation of Wnt/β-catenin activation. However, regulation of the SIX3-Wnt/β-catenin pathway axis remains unknown. We measured the expression of TRIM27 and SIX3 as well as investigated whether there was a correlation between them in lung cancer tissue samples. Herein, we found that the E3 ubiquitin ligase, TRIM27, ubiquitinates, and degrades SIX3. TRIM27 induces non-small cell lung cancer (NSCLC) cell proliferation and metastasis, and the expression of β-catenin, S100P, TGFB3, and MMP-9 were significantly inhibited by SIX3. Furthermore, XAV939 is a selective β-catenin-mediated transcription inhibitor that inhibited TRIM27- and SIX3-mediated NSCLC cell proliferation, migration, and invasion. Clinically, lung tissue samples of cancer patients showed increased TRIM27 expression and decreased SIX3 expression. Taken together, these data demonstrate that TRIM27 acts as an oncogene regulating cell proliferation and metastasis in NSCLC through SIX3-β-catenin signaling.
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Affiliation(s)
- Shiyuan Liu
- Department of Thoracic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Ying Tian
- Xi'an Jiaotong University Press, Xi'an 710049, China
| | - Ying Zheng
- Xi'an Jiaotong University School of Medicine, Xi'an 710061, China
| | - Yao Cheng
- Department of Thoracic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Danjie Zhang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Jiantao Jiang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Shaomin Li
- Department of Thoracic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
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14
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Ji X, Lin L, Shen S, Dong X, Chen C, Li Y, Zhu Y, Huang H, Chen J, Chen X, Wei L, He J, Duan W, Su L, Jiang Y, Fan J, Guan J, You D, Shafer A, Bjaanaes MM, Karlsson A, Planck M, Staaf J, Helland Å, Esteller M, Wei Y, Zhang R, Chen F, Christiani DC. Epigenetic-smoking interaction reveals histologically heterogeneous effects of TRIM27 DNA methylation on overall survival among early-stage NSCLC patients. Mol Oncol 2020; 14:2759-2774. [PMID: 33448640 PMCID: PMC7607178 DOI: 10.1002/1878-0261.12785] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 07/27/2020] [Accepted: 08/03/2020] [Indexed: 01/09/2023] Open
Abstract
Tripartite motif containing 27 (TRIM27) is highly expressed in lung cancer, including non-small-cell lung cancer (NSCLC). Here, we profiled DNA methylation of lung adenocarcinoma (LUAD) and lung squamous cell carcinoma (LUSC) tumours from 613 early-stage NSCLC patients and evaluated associations between CpG methylation of TRIM27 and overall survival. Significant CpG probes were confirmed in 617 samples from The Cancer Genome Atlas. The methylation of the CpG probe cg05293407TRIM27 was significantly associated with overall survival in patients with LUSC (HR = 1.65, 95% CI: 1.30-2.09, P = 4.52 × 10-5), but not in patients with LUAD (HR = 1.08, 95% CI: 0.87-1.33, P = 0.493). As incidence of LUSC is associated with higher smoking intensity compared to LUAD, we investigated whether smoking intensity impacted on the prognostic effect of cg05293407TRIM27 methylation in NSCLC. LUSC patients had a higher average pack-year of smoking (37.49LUAD vs 54.79LUSC, P = 1.03 × 10-19) and included a higher proportion of current smokers than LUAD patients (28.24%LUAD vs 34.09%LUSC, P = 0.037). cg05293407TRIM27 was significantly associated with overall survival only in NSCLC patients with medium-high pack-year of smoking (HR = 1.58, 95% CI: 1.26-1.96, P = 5.25 × 10-5). We conclude that cg05293407TRIM27 methylation is a potential predictor of LUSC prognosis, and smoking intensity may impact on its prognostic value across the various types of NSCLC.
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Affiliation(s)
- Xinyu Ji
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Lijuan Lin
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.,Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Sipeng Shen
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.,Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.,China International Cooperation Center for Environment and Human Health, Nanjing Medical University, Nanjing, China
| | - Xuesi Dong
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.,Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.,Department of Epidemiology and Biostatistics, School of Public Health, Southeast University, Nanjing, China
| | - Chao Chen
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yi Li
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
| | - Ying Zhu
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hui Huang
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jiajin Chen
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xin Chen
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Liangmin Wei
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jieyu He
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Weiwei Duan
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.,Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, China
| | - Li Su
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Yue Jiang
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Juanjuan Fan
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jinxing Guan
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Dongfang You
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.,Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Andrea Shafer
- Pulmonary and Critical Care Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Maria Moksnes Bjaanaes
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Anna Karlsson
- Division of Oncology and Pathology, Department of Clinical Sciences Lund and CREATE Health Strategic Center for Translational Cancer Research, Lund University, Lund, Sweden
| | - Maria Planck
- Division of Oncology and Pathology, Department of Clinical Sciences Lund and CREATE Health Strategic Center for Translational Cancer Research, Lund University, Lund, Sweden
| | - Johan Staaf
- Division of Oncology and Pathology, Department of Clinical Sciences Lund and CREATE Health Strategic Center for Translational Cancer Research, Lund University, Lund, Sweden
| | - Åslaug Helland
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Manel Esteller
- Josep Carreras Leukaemia Research Institute, Badalona, Barcelona, Spain.,Centro de Investigacion Biomedica en Red Cancer, Madrid, Spain.,Institucio Catalana de Recerca i Estudis Avançats, Barcelona, Spain.,Physiological Sciences Department, School of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
| | - Yongyue Wei
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.,Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.,China International Cooperation Center for Environment and Human Health, Nanjing Medical University, Nanjing, China
| | - Ruyang Zhang
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.,Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.,China International Cooperation Center for Environment and Human Health, Nanjing Medical University, Nanjing, China
| | - Feng Chen
- Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.,China International Cooperation Center for Environment and Human Health, Nanjing Medical University, Nanjing, China.,State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China
| | - David C Christiani
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.,Pulmonary and Critical Care Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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15
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Gibbs ZA, Reza LC, Cheng CC, Westcott JM, McGlynn K, Whitehurst AW. The testis protein ZNF165 is a SMAD3 cofactor that coordinates oncogenic TGFβ signaling in triple-negative breast cancer. eLife 2020; 9:57679. [PMID: 32515734 PMCID: PMC7302877 DOI: 10.7554/elife.57679] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/09/2020] [Indexed: 12/19/2022] Open
Abstract
Cancer/testis (CT) antigens are proteins whose expression is normally restricted to germ cells yet aberrantly activated in tumors, where their functions remain relatively cryptic. Here we report that ZNF165, a CT antigen frequently expressed in triple-negative breast cancer (TNBC), associates with SMAD3 to modulate transcription of transforming growth factor β (TGFβ)-dependent genes and thereby promote growth and survival of human TNBC cells. In addition, we identify the KRAB zinc finger protein, ZNF446, and its associated tripartite motif protein, TRIM27, as obligate components of the ZNF165-SMAD3 complex that also support tumor cell viability. Importantly, we find that TRIM27 alone is necessary for ZNF165 transcriptional activity and is required for TNBC tumor growth in vivo using an orthotopic xenograft model in immunocompromised mice. Our findings indicate that aberrant expression of a testis-specific transcription factor is sufficient to co-opt somatic transcriptional machinery to drive a pro-tumorigenic gene expression program in TNBC.
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Affiliation(s)
- Zane A Gibbs
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, United States.,Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, United States
| | - Luis C Reza
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, United States.,Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, United States
| | - Chun-Chun Cheng
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, United States.,Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, United States
| | - Jill M Westcott
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, United States
| | - Kathleen McGlynn
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, United States.,Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, United States
| | - Angelique W Whitehurst
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, United States.,Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, United States
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16
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Liu J, Feng X, Tian Y, Wang K, Gao F, Yang L, Li H, Tian Y, Yang R, Zhao L, Miao X, Huang J, Liu Q, Zhang W, Li Y, Wang C, Duan H, Liu S. Knockdown of TRIM27 expression suppresses the dysfunction of mesangial cells in lupus nephritis by FoxO1 pathway. J Cell Physiol 2019; 234:11555-11566. [PMID: 30648253 DOI: 10.1002/jcp.27810] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 11/05/2018] [Indexed: 12/29/2022]
Abstract
TRIM27 (tripartite motif-containing 27) is a member of the TRIM (tripartite motif) protein family and participates in a variety of biological processes. Some research has reported that TRIM27 was highly expressed in certain kinds of carcinoma cells and tissues and played an important role in the proliferation of carcinoma cells. However, whether TRIM27 takes part in the progression of lupus nephritis (LN) especially in cells proliferation remains unclear. Our study revealed that the overexpression of TRIM27 was observed in the kidneys of patients with LN, lupus mice and mesangial cells exposed to LN plasma which correlated with the proliferation of mesangial cells and ECM (extracellular matrix) deposition. Downregulation of TRIM27 expression suppressed the proliferation of mesangial cells and ECM accumulation in MRL/lpr mice and cultured human mesangial cells (HMCs) by regulating the FoxO1 pathway. Furthermore, the overexpression of FoxO1 remarkably decreased HMCs proliferation level and ECM accumulation in LN plasma-treated HMCs. In addition, the protein kinase B (Akt) signal pathway inhibitor LY294002 significantly reduced the expression of TRIM27 and inhibited the dysfunction of mesangial cells. These above data suggested that TRIM27 mediated abnormal mesangial cell proliferation in kidney of lupus and might be the potential target for treating mesangial cell proliferation of lupus nephritis.
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Affiliation(s)
- Jinxi Liu
- Department of Pathology, Hebei Medical University, Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Xiaojuan Feng
- Department of Pathology, Hebei Medical University, Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Yu Tian
- Department of Pathology, Hebei Medical University, Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Kexin Wang
- Clinical Medicine, College of Basic Medicine,Hebei Medical University, Shijiazhuang, China
| | - Fan Gao
- Department of Pathology, Hebei Medical University, Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Lin Yang
- Department of Nephrology, the Second Affiliated Hospital of Hebei Medical University, Shijiazhuang, China
| | - Hongbo Li
- Department of Pathology, Hebei Medical University, Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Yuexin Tian
- Department of Pathology, Hebei Medical University, Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Ran Yang
- Department of Pathology, Hebei Medical University, Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Lu Zhao
- Department of Pathology, Hebei Medical University, Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Xinyan Miao
- Department of Pathology, Hebei Medical University, Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Jie Huang
- Department of Pathology, Hebei Medical University, Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Qingjuan Liu
- Department of Pathology, Hebei Medical University, Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Wei Zhang
- Department of Pathology, Hebei Medical University, Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Yuzhe Li
- Clinical Medicine, College of Basic Medicine,Hebei Medical University, Shijiazhuang, China
| | - Chunlin Wang
- Department of Pathology, Hebei Medical University, Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
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17
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Up-regulation of miR-383-5p suppresses proliferation and enhances chemosensitivity in ovarian cancer cells by targeting TRIM27. Biomed Pharmacother 2019; 109:595-601. [DOI: 10.1016/j.biopha.2018.10.148] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 09/03/2018] [Accepted: 10/24/2018] [Indexed: 11/21/2022] Open
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18
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Wang T, Xia C, Dong Y, Chen X, Wang J, Du J. Trim27 confers myeloid hematopoiesis competitiveness by up-regulating myeloid master genes. J Leukoc Biol 2018; 104:799-809. [PMID: 29897614 DOI: 10.1002/jlb.1a1217-480r] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 05/07/2018] [Accepted: 05/16/2018] [Indexed: 12/18/2022] Open
Abstract
Trim27 (Zinc finger protein RFP) is a potential regulator of hematopoietic stem cells (HSC), yet its role in hematopoiesis remains elusive. Here, we investigated the roles of Trim27 in hematopoiesis by enforcing its expression in mouse and human hematopoietic stem and progenitor cells (HSPC). Ectopic expression of Trim27 in mouse fetal liver (FL) HSPC confers repopulating advantage with myeloid dominance. However, the number of HSC from Trim27 group was comparable with empty vector control group, indicating that overexpression of Trim27 unlikely expanded HSC. Transcriptome analysis of Trim27-overexpressing myeloid progenitor cells (MP) indicated that Trim27 up-regulated essential regulators of myelopoiesis, including Spi1 and Cebpg, up-regulated myeloid proliferation-related signaling genes Nras, Runx1, and Cbfb, up-regulated JAK/STAT signaling inhibitors Socs2, Socs3, and Cish, and up-regulated myeloid maturation-related genes Adam8 and Dek. Moreover, the myeloproliferative advantage caused by overexpressing Trim27/TRIM27 is conserved between mouse and human hematopoiesis. To our knowledge, this is the first study showing that Trim27 confers competitive hematopoiesis by promoting myeloid bias differentiation of HSPC, but not by expanding HSC.
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Affiliation(s)
- Tongjie Wang
- School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Chengxiang Xia
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangzhou Medical University, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou, China
| | - Yong Dong
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangzhou Medical University, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou, China
| | - Xiaoli Chen
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangzhou Medical University, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou, China
| | - Jinyong Wang
- School of Life Sciences, University of Science and Technology of China, Hefei, China.,CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangzhou Medical University, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou, China
| | - Juan Du
- School of Life Sciences, University of Science and Technology of China, Hefei, China.,CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangzhou Medical University, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou, China
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19
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Zhang Y, Feng Y, Ji D, Wang Q, Qian W, Wang S, Zhang Z, Ji B, Zhang C, Sun Y, Fu Z. TRIM27 functions as an oncogene by activating epithelial-mesenchymal transition and p-AKT in colorectal cancer. Int J Oncol 2018; 53:620-632. [PMID: 29767249 PMCID: PMC6017157 DOI: 10.3892/ijo.2018.4408] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 04/25/2018] [Indexed: 02/07/2023] Open
Abstract
Tripartite motif-containing 27 (TRIM27) belongs to the tripartite motif (TRIM) protein family and is involved in various malignant tumor processes. However, the function and mechanism of TRIM27 in colorectal cancer (CRC) remains to be elucidated. In the present study, the expression of TRIM27 was analyzed in CRC tissues and adjacent normal tissues by reverse transcription-quantitative polymerase chain reaction and immunohistochemistry. LoVo and HCT116 cell lines were then selected to further investigate the function of TRIM27 in the proliferation, invasion and metastasis of CRC in vitro and in vivo. Finally, the potential mechanism underlying the effects of TRIM27 in CRC was examined by western blotting. The results showed that TRIM27 was upregulated in CRC tissues, and the expression level of TRIM27 was significantly associated with tumor invasion, metastasis and prognosis. Following TRIM27 inhibition and overexpression in CRC cells, it was found that TRIM27 promoted cell proliferation, possibly via the inhibition of apoptosis and cell cycle regulation. TRIM27 also facilitated invasion and metastasis. Finally, it was observed that TRIM27 promoted epithelial-mesenchymal transition and activated phosphorylated AKT serine/threonine kinase in CRC cells. These results suggested that TRIM27 is an oncogenic protein in the progression of CRC, and may represent a novel target for CRC detection and therapy.
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Affiliation(s)
- Yue Zhang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yifei Feng
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Dongjian Ji
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Qingyuan Wang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Wenwei Qian
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Shijia Wang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Zhiyuan Zhang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Bing Ji
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Chuan Zhang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yueming Sun
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Zan Fu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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Bolund ACS, Starnawska A, Miller MR, Schlünssen V, Backer V, Børglum AD, Christensen K, Tan Q, Christiansen L, Sigsgaard T. Lung function discordance in monozygotic twins and associated differences in blood DNA methylation. Clin Epigenetics 2017; 9:132. [PMID: 29299071 PMCID: PMC5740718 DOI: 10.1186/s13148-017-0427-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 11/23/2017] [Indexed: 01/16/2023] Open
Abstract
Background Lung function is an important predictor of morbidity and mortality, with accelerated lung function decline reported to have immense consequences for the world's healthcare systems. The lung function decline across individual's lifetime is a consequence of age-related changes in lung anatomical structure and combination of various environmental factors; however, the exact molecular mechanisms contributing to this decline are not fully understood. DNA methylation is an epigenetic modification that changes across individual's lifetime, as well as allows for interplay between environmental and genetic factors. DNA methylation plays a crucial role in regulation of gene expression, with increasing evidence linking aberrant DNA methylation levels with a number of common human diseases. In this study, we investigated possible associations between genome-wide DNA methylation levels and lung function in 169 pairs of middle-aged monozygotic twins (86 male pairs: mean age (min-max) = 66 years (57-79); 83 female pairs: mean age (min-max) = 66 years (56-78)). The twins were collected from the Danish Twin Registry and were examined at baseline (1998-1999) and follow-up (2008-2011) visits. Using the twin design, we correlated intra-pair differences in cross-sectional and longitudinal lung function with intra-pair blood DNA methylation differences at follow-up by linear regression analyses adjusted for sex, age, BMI, smoking, and blood cell composition measured for each individual with the use of flow cytometry. Results We identified several differentially methylated CpG sites associated with forced expiratory volume the first second (FEV1) and forced vital capacity (FVC). Three probes identified for level of FVC were located in GLIPR1L2 gene (lowest p value = 7.14 × 10-8), involved in innate immunity and tumour-suppressor/pro-oncogenic mechanisms. Change in FEV1 during the 11-year follow-up period was associated with blood DNA methylation level in TRIM27 gene (p value = 1.55 × 10-6), a negative regulator of CD4 T cells, and also involved in cancer development. Several enriched pathways were identified, especially for FEV1, with one being "TGFBR" (Benjamini-Hochbergadjp value = 0.045), the receptor for TGFβ, a growth factor involved in normal lung tissue repair through pro-fibrotic effects. Conclusions Our findings suggest that epigenetic regulation of immunological- and cancer-related genes, as well as TGF-β-receptor-related genes, may be involved in the cross-sectional level and longitudinal change in lung function in middle-aged monozygotic twins.
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Affiliation(s)
- Anneli C. S. Bolund
- Department of Public Health, Section for Environment Occupation and Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark
| | - Anna Starnawska
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, Wilhelm Meyers Alle 4, 8000 Aarhus, Denmark
- Center for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark
| | - Martin R. Miller
- Institute of Occupational and Environmental Medicine, University of Birmingham, Birmingham, UK
| | - Vivi Schlünssen
- Department of Public Health, Section for Environment Occupation and Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark
- National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Vibeke Backer
- Department of Respiratory Medicine, Bispebjerg University Hospital, Copenhagen, Denmark
| | - Anders D. Børglum
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, Wilhelm Meyers Alle 4, 8000 Aarhus, Denmark
- Center for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark
| | - Kaare Christensen
- The Danish Twin Registry, Institute of Public Health, University of Southern Denmark, Odense, Denmark
- The Danish Aging Research Center, Epidemiology, Biostatistics and Biodemography, Institute of Public Health, University of Southern Denmark, Odense, Denmark
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
- Department of Clinical Biochemistry and Pharmacology, University Hospital, Odense, Denmark
| | - Qihua Tan
- The Danish Twin Registry, Institute of Public Health, University of Southern Denmark, Odense, Denmark
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
| | - Lene Christiansen
- The Danish Twin Registry, Institute of Public Health, University of Southern Denmark, Odense, Denmark
- The Danish Aging Research Center, Epidemiology, Biostatistics and Biodemography, Institute of Public Health, University of Southern Denmark, Odense, Denmark
| | - Torben Sigsgaard
- Department of Public Health, Section for Environment Occupation and Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark
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Yin H, Zhu Q, Liu M, Tu G, Li Q, Yuan J, Wen S, Yang G. GPER promotes tamoxifen-resistance in ER+ breast cancer cells by reduced Bim proteins through MAPK/Erk-TRIM2 signaling axis. Int J Oncol 2017; 51:1191-1198. [PMID: 28902352 DOI: 10.3892/ijo.2017.4117] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 07/10/2017] [Indexed: 11/06/2022] Open
Abstract
Tamoxifen resistance is a major clinical challenge in breast cancer treatment. Our previous studies find that GPER and its down-stream signaling play a pivotal role in the development of tamoxifen (TAM) resistance. cDNA array analysis indicated a set of genes associated with cell apoptosis are aberrant in GPER activated and TAM-resistant MCF-7R cells compared with TAM-sensitive MCF-7 cells. Among these genes, Bim (also named BCL2-L11), a member of the BH3-only pro-apoptotic protein family is significantly decreased, and TRIM RING finger protein TRIM2 (a ubiquitin ligase) is highly expressed in MCF-7R. To understand the mechanism of TAM-resistance in GPER activated ER+ breast cancer, the function of TRIM2 and Bim inducing cell apoptosis was studied. By using immunohistochemical and western blot analysis, there is an adverse correlation between TRIM2 and Bim in TAM-resistant breast tumor tissues and MCF-7R cells. Knockdown Bim in TAM-sensitive MCF-7 cells or overexpression of Bim in TAM-resistant MCF-7 cells significantly changed its sensibility to TAM through altering the levels of cleaved PARP and caspase-3. Activation of GPER and its downstream signaling MAPK/ERK, not PI3K/AKT, led to enhanced TRIM2 protein levels and affected the binding between TRIM2 and Bim which resulted in a reduced Bim in TAM-resistant breast cancer cells. Thus, the present study provides a novel insight to TAM-resistance in ER-positive breast cancer cells.
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Affiliation(s)
- Heng Yin
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Qing Zhu
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Manran Liu
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Gang Tu
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Qing Li
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Jie Yuan
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Siyang Wen
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Guanglun Yang
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
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22
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Baker PJ, De Nardo D, Moghaddas F, Tran LS, Bachem A, Nguyen T, Hayman T, Tye H, Vince JE, Bedoui S, Ferrero RL, Masters SL. Posttranslational Modification as a Critical Determinant of Cytoplasmic Innate Immune Recognition. Physiol Rev 2017; 97:1165-1209. [DOI: 10.1152/physrev.00026.2016] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 02/27/2017] [Accepted: 02/28/2017] [Indexed: 12/21/2022] Open
Abstract
Cell surface innate immune receptors can directly detect a variety of extracellular pathogens to which cytoplasmic innate immune sensors are rarely exposed. Instead, within the cytoplasm, the environment is rife with cellular machinery and signaling pathways that are indirectly perturbed by pathogenic microbes to activate intracellular sensors, such as pyrin, NLRP1, NLRP3, or NLRC4. Therefore, subtle changes in key intracellular processes such as phosphorylation, ubiquitination, and other pathways leading to posttranslational protein modification are key determinants of innate immune recognition in the cytoplasm. This concept is critical to establish the “guard hypothesis” whereby otherwise homeostatic pathways that keep innate immune sensors at bay are released in response to alterations in their posttranslational modification status. Originally identified in plants, evidence that a similar guardlike mechanism exists in humans has recently been identified, whereby a mutation that prevents phosphorylation of the innate immune sensor pyrin triggers a dominantly inherited autoinflammatory disease. It is also noteworthy that even when a cytoplasmic innate immune sensor has a direct ligand, such as bacterial peptidoglycan (NOD1 or NOD2), RNA (RIG-I or MDA5), or DNA (cGAS or IFI16), it can still be influenced by posttranslational modification to dramatically alter its response. Therefore, due to their existence in the cytoplasmic milieu, posttranslational modification is a key determinant of intracellular innate immune receptor functionality.
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Affiliation(s)
- Paul J. Baker
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Hudson Institute of Medical Research, Monash University, Centre for Innate Immunity and Infectious Diseases, Clayton, Victoria, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia; and Departments of Medical Biology and of Microbiology and Immunology, The University of Melbourne, Parkville, Australia
| | - Dominic De Nardo
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Hudson Institute of Medical Research, Monash University, Centre for Innate Immunity and Infectious Diseases, Clayton, Victoria, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia; and Departments of Medical Biology and of Microbiology and Immunology, The University of Melbourne, Parkville, Australia
| | - Fiona Moghaddas
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Hudson Institute of Medical Research, Monash University, Centre for Innate Immunity and Infectious Diseases, Clayton, Victoria, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia; and Departments of Medical Biology and of Microbiology and Immunology, The University of Melbourne, Parkville, Australia
| | - Le Son Tran
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Hudson Institute of Medical Research, Monash University, Centre for Innate Immunity and Infectious Diseases, Clayton, Victoria, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia; and Departments of Medical Biology and of Microbiology and Immunology, The University of Melbourne, Parkville, Australia
| | - Annabell Bachem
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Hudson Institute of Medical Research, Monash University, Centre for Innate Immunity and Infectious Diseases, Clayton, Victoria, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia; and Departments of Medical Biology and of Microbiology and Immunology, The University of Melbourne, Parkville, Australia
| | - Tan Nguyen
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Hudson Institute of Medical Research, Monash University, Centre for Innate Immunity and Infectious Diseases, Clayton, Victoria, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia; and Departments of Medical Biology and of Microbiology and Immunology, The University of Melbourne, Parkville, Australia
| | - Thomas Hayman
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Hudson Institute of Medical Research, Monash University, Centre for Innate Immunity and Infectious Diseases, Clayton, Victoria, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia; and Departments of Medical Biology and of Microbiology and Immunology, The University of Melbourne, Parkville, Australia
| | - Hazel Tye
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Hudson Institute of Medical Research, Monash University, Centre for Innate Immunity and Infectious Diseases, Clayton, Victoria, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia; and Departments of Medical Biology and of Microbiology and Immunology, The University of Melbourne, Parkville, Australia
| | - James E. Vince
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Hudson Institute of Medical Research, Monash University, Centre for Innate Immunity and Infectious Diseases, Clayton, Victoria, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia; and Departments of Medical Biology and of Microbiology and Immunology, The University of Melbourne, Parkville, Australia
| | - Sammy Bedoui
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Hudson Institute of Medical Research, Monash University, Centre for Innate Immunity and Infectious Diseases, Clayton, Victoria, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia; and Departments of Medical Biology and of Microbiology and Immunology, The University of Melbourne, Parkville, Australia
| | - Richard L. Ferrero
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Hudson Institute of Medical Research, Monash University, Centre for Innate Immunity and Infectious Diseases, Clayton, Victoria, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia; and Departments of Medical Biology and of Microbiology and Immunology, The University of Melbourne, Parkville, Australia
| | - Seth L. Masters
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Hudson Institute of Medical Research, Monash University, Centre for Innate Immunity and Infectious Diseases, Clayton, Victoria, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia; and Departments of Medical Biology and of Microbiology and Immunology, The University of Melbourne, Parkville, Australia
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23
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The ubiquitin ligase TRIM27 functions as a host restriction factor antagonized by Mycobacterium tuberculosis PtpA during mycobacterial infection. Sci Rep 2016; 6:34827. [PMID: 27698396 PMCID: PMC5048167 DOI: 10.1038/srep34827] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 09/19/2016] [Indexed: 11/08/2022] Open
Abstract
Macrophage-mediated innate immune responses play crucial roles in host defense against pathogens. Recent years have seen an explosion of host proteins that act as restriction factors blocking viral replication in infected cells. However, the essential factors restricting Mycobacterium tuberculosis (Mtb) and their regulatory roles during mycobacterial infection remain largely unknown. We previously reported that Mtb tyrosine phosphatase PtpA, a secreted effector protein required for intracellular survival of Mtb, inhibits innate immunity by co-opting the host ubiquitin system. Here, we identified a new PtpA-interacting host protein TRIM27, which is reported to possess a conserved RING domain and usually acts as an E3 ubiquitin ligase that interferes with various cellular processes. We further demonstrated that TRIM27 restricts survival of mycobacteria in macrophages by promoting innate immune responses and cell apoptosis. Interestingly, Mtb PtpA could antagonize TRIM27-promoted JNK/p38 MAPK pathway activation and cell apoptosis through competitively binding to the RING domain of TRIM27. TRIM27 probably works as a potential restriction factor for Mtb and its function is counteracted by Mtb effector proteins such as PtpA. Our study suggests a potential tuberculosis treatment via targeting of the TRIM27-PtpA interfaces.
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24
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Downregulation of TRIM27 expression inhibits the proliferation of ovarian cancer cells in vitro and in vivo. J Transl Med 2016; 96:37-48. [PMID: 26568293 DOI: 10.1038/labinvest.2015.132] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 08/22/2015] [Accepted: 08/26/2015] [Indexed: 01/24/2023] Open
Abstract
TRIM27 (tripartite motif-containing 27) was originally identified as a fusion partner with the RET (REarranged during transfection) proto-oncogene and is highly expressed in various tumor cells and tissues. However, the level of expression and function of TRIM27 in ovarian cancer remain unclear. Here we have measured the expression of TRIM27 in normal ovarian and fallopian tube epithelial cells and in ovarian serous carcinoma cells and correlated TRIM27 expression with clinical and pathological parameters. In addition, we detected the effect of TRIM27 knockdown on proliferation of ovarian cancer cells in cell culture and xenografts. The results demonstrated that TRIM27 was highly expressed in ovarian serous carcinoma cells, and TRIM27 expression was significantly correlated with metastasis and FIGO stage in ovarian serous carcinoma patients. Downregulation of TRIM27 expression suppressed the proliferation of ovarian cancer cells in cell culture and inhibited the growth of xenografts in nude mice. TRIM27 knockdown induced cell cycle arrest and apoptosis in ovarian cancer cells by upregulating the expression of p-P38 and downregulating the expression of p-AKT. Thus the present study suggests that TRIM27 could have important roles as an oncogene during the development of ovarian cancer and could serve as a diagnostic and therapeutic target.
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25
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Liu F, Song R, Feng Y, Guo J, Chen Y, Zhang Y, Chen T, Wang Y, Huang Y, Li CY, Cao C, Zhang Y, Hu X, Xiao RP. Upregulation of MG53 Induces Diabetic Cardiomyopathy Through Transcriptional Activation of Peroxisome Proliferation-Activated Receptor α. Circulation 2015; 131:795-804. [DOI: 10.1161/circulationaha.114.012285] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background—
Diabetic cardiomyopathy, which contributes to >50% diabetic death, is featured by myocardial lipid accumulation, hypertrophy, fibrosis, and cardiac dysfunction. The mechanism underlying diabetic cardiomyopathy is poorly understood. Recent studies have shown that a striated muscle-specific E3 ligase Mitsugumin 53 (MG53, or TRIM72) constitutes a primary causal factor of systemic insulin resistance and metabolic disorders. Although it is most abundantly expressed in myocardium, the biological and pathological roles of MG53 in triggering cardiac metabolic disorders remain elusive.
Methods and Results—
Here we show that cardiac-specific transgenic expression of MG53 induces diabetic cardiomyopathy in mice. Specifically, MG53 transgenic mouse develops severe diabetic cardiomyopathy at 20 weeks of age, as manifested by insulin resistance, compromised glucose uptake, increased lipid accumulation, myocardial hypertrophy, fibrosis, and cardiac dysfunction. Overexpression of MG53 leads to insulin resistant via destabilizing insulin receptor and insulin receptor substrate 1. More importantly, we identified a novel role of MG53 in transcriptional upregulation of peroxisome proliferation-activated receptor alpha and its target genes, resulting in lipid accumulation and lipid toxicity, thereby contributing to diabetic cardiomyopathy.
Conclusions—
Our results suggest that overexpression of myocardial MG53 is sufficient to induce diabetic cardiomyopathy via dual mechanisms involving upregulation of peroxisome proliferation-activated receptor alpha and impairment of insulin signaling. These findings not only reveal a novel function of MG53 in regulating cardiac peroxisome proliferation-activated receptor alpha gene expression and lipid metabolism, but also underscore MG53 as an important therapeutic target for diabetes mellitus and associated cardiomyopathy.
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Affiliation(s)
- Fenghua Liu
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Ruisheng Song
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Yuanqing Feng
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Jiaojiao Guo
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Yanmin Chen
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Yong Zhang
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Tao Chen
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Yanru Wang
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Yanyi Huang
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Chuan-Yun Li
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Chunmei Cao
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Yan Zhang
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Xinli Hu
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Rui-ping Xiao
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
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Genome-wide association study of antibody level response to NDV and IBV in Jinghai yellow chicken based on SLAF-seq technology. J Appl Genet 2015; 56:365-73. [PMID: 25588649 DOI: 10.1007/s13353-014-0269-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 11/10/2014] [Accepted: 12/29/2014] [Indexed: 12/21/2022]
Abstract
Newcastle disease (ND) and avian infectious bronchitis (IB) are contagious diseases of chickens. To identify genes associated with antibody levels against ND and IB, a genome-wide association study was performed using specific-locus amplified fragment sequencing (SLAF-seq) technology in Jinghai yellow chickens. This determined six single-nucleotide polymorphisms (SNPs) that were associated with antibody levels against Newcastle disease virus (NDV): rsZ2494661, rsZ2494710, rs1211307701, rs1211307711, rs1218289310 and rs420701988. Of these, rsZ2494661 and rsZ2494710 reached the 5 % Bonferroni genome-wide significance level (5.5E-07) and they were both 134.7 kb downstream of the SETBP1 gene. The remaining four SNPs had 'suggestive' genome-wide significance levels (1.1E-05) and they were within or near the Plexin B1, LRRN1 and PDGFC genes. IB had two SNPs associated with antibody levels: rs149988433 and rs16170823; both reached chromosome-wide significance levels and they were near the USP7 and TRIM27 genes, respectively. Bioinformatics, GO annotation and pathway analysis indicated that five of these genes (Plexin B1, TRIM27, PDGFC, SETBP1 and USP7) may be important for the generation of protective antibodies against NDV and infectious bronchitis virus (IBV). This paves the way for further research on host immune responses against NDV.
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Chao J, Zhang XF, Pan QZ, Zhao JJ, Jiang SS, Wang Y, Zhang JH, Xia JC. Decreased expression of TRIM3 is associated with poor prognosis in patients with primary hepatocellular carcinoma. Med Oncol 2014; 31:102. [PMID: 24994609 DOI: 10.1007/s12032-014-0102-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Accepted: 06/23/2014] [Indexed: 02/07/2023]
Abstract
Tripartite motif-containing 3 (TRIM3) is a member of the tripartite motif (TRIM) protein family and is reported to be involved in the pathogenesis of various cancers. The role of TRIM3 in hepatocellular carcinoma (HCC) is unknown; thus, the goal of this study was to explore the expression level and prognostic value of TRIM3 in HCC. The expression level of TRIM3 in HCC surgically resected tumors and corresponding nontumorous samples was detected by real-time quantitative RT-PCR, Western blotting, and immunohistochemistry. The correlation between TRIM3 expression level and the clinicopathological features and prognosis of HCC patients was also analyzed. We observed that TRIM3 expression was remarkably decreased in tumor tissue samples from HCC patients, relative to matched nontumorous tissue samples, at the mRNA (p = 0.018) and protein level (p = 0.02). Similarly, immunohistochemical analysis showed that 53.4 % of samples had low TRIM3 protein expression. Clinicopathological analysis revealed that low TRIM3 expression was significantly correlated with tumor size (p = 0.034), histological grade (p < 0.001), serum AFP (p = 0.025), and TNM stage (p = 0.021). Furthermore, Kaplan-Meier survival analysis revealed that low TRIM3 expression was associated with poor survival in HCC patients. Finally, our multivariate Cox regression analysis showed that TRIM3 expression was an independent prognostic factor for overall survival of HCC patients. In conclusion, this study suggests that TRIM3 may play a significant role in HCC progression and acts as a valuable prognostic marker and potential therapeutic target for HCC.
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Affiliation(s)
- Jie Chao
- Department of Epidemiology and Health Statistics, Guangdong Key Laboratory of Molecular Epidemiology, Guangdong Pharmaceutical University, 280 Waihuan Road East, Guangzhou, 510010, People's Republic of China
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Hao YH, Doyle JM, Ramanathan S, Gomez TS, Jia D, Xu M, Chen ZJ, Billadeau DD, Rosen MK, Potts PR. Regulation of WASH-dependent actin polymerization and protein trafficking by ubiquitination. Cell 2013; 152:1051-64. [PMID: 23452853 DOI: 10.1016/j.cell.2013.01.051] [Citation(s) in RCA: 177] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 11/29/2012] [Accepted: 01/24/2013] [Indexed: 02/01/2023]
Abstract
Endosomal protein trafficking is an essential cellular process that is deregulated in several diseases and targeted by pathogens. Here, we describe a role for ubiquitination in this process. We find that the E3 RING ubiquitin ligase, MAGE-L2-TRIM27, localizes to endosomes through interactions with the retromer complex. Knockdown of MAGE-L2-TRIM27 or the Ube2O E2 ubiquitin-conjugating enzyme significantly impaired retromer-mediated transport. We further demonstrate that MAGE-L2-TRIM27 ubiquitin ligase activity is required for nucleation of endosomal F-actin by the WASH regulatory complex, a known regulator of retromer-mediated transport. Mechanistic studies showed that MAGE-L2-TRIM27 facilitates K63-linked ubiquitination of WASH K220. Significantly, disruption of WASH ubiquitination impaired endosomal F-actin nucleation and retromer-dependent transport. These findings provide a cellular and molecular function for MAGE-L2-TRIM27 in retrograde transport, including an unappreciated role of K63-linked ubiquitination and identification of an activating signal of the WASH regulatory complex.
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Affiliation(s)
- Yi-Heng Hao
- Department of Physiology, UT Southwestern Dallas, TX 75390, USA
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Exploring the diversity of SPRY/B30.2-mediated interactions. Trends Biochem Sci 2012; 38:38-46. [PMID: 23164942 DOI: 10.1016/j.tibs.2012.10.001] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 10/02/2012] [Accepted: 10/05/2012] [Indexed: 11/21/2022]
Abstract
The SPla/Ryanodine receptor (SPRY)/B30.2 domain is one of the most common folds in higher eukaryotes. The human genome encodes 103 SPRY/B30.2 domains, several of which are involved in the immune response. Approximately 45% of human SPRY/B30.2-containing proteins are E3 ligases. The role and function of the majority of SPRY/B30.2 domains are still poorly understood, however, in several cases mutations in this domain have been linked to congenital disorders. The recent characterization of SPRY/B30.2-mediated protein interactions has provided evidence for a role of this domain as an adaptor module to assemble macromolecular complexes, analogous to Src homology (SH)2, SH3, and WW domains. However, functional and structural evidence suggests that SPRY/B30.2 is a more versatile fold, allowing a wide range of binding modes.
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