1
|
Mittal K, Kaur J, Jaczko M, Wei G, Toss MS, Rakha EA, Janssen EAM, Søiland H, Kucuk O, Reid MD, Gupta MV, Aneja R. Centrosome amplification: a quantifiable cancer cell trait with prognostic value in solid malignancies. Cancer Metastasis Rev 2021; 40:319-339. [PMID: 33106971 PMCID: PMC7897259 DOI: 10.1007/s10555-020-09937-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 10/12/2020] [Indexed: 02/07/2023]
Abstract
Numerical and/or structural centrosome amplification (CA) is a hallmark of cancers that is often associated with the aberrant tumor karyotypes and poor clinical outcomes. Mechanistically, CA compromises mitotic fidelity and leads to chromosome instability (CIN), which underlies tumor initiation and progression. Recent technological advances in microscopy and image analysis platforms have enabled better-than-ever detection and quantification of centrosomal aberrancies in cancer. Numerous studies have thenceforth correlated the presence and the degree of CA with indicators of poor prognosis such as higher tumor grade and ability to recur and metastasize. We have pioneered a novel semi-automated pipeline that integrates immunofluorescence confocal microscopy with digital image analysis to yield a quantitative centrosome amplification score (CAS), which is a summation of the severity and frequency of structural and numerical centrosome aberrations in tumor samples. Recent studies in breast cancer show that CA increases across the disease progression continuum, while normal breast tissue exhibited the lowest CA, followed by cancer-adjacent apparently normal, ductal carcinoma in situ and invasive tumors, which showed the highest CA. This finding strengthens the notion that CA could be evolutionarily favored and can promote tumor progression and metastasis. In this review, we discuss the prevalence, extent, and severity of CA in various solid cancer types, the utility of quantifying amplified centrosomes as an independent prognostic marker. We also highlight the clinical feasibility of a CA-based risk score for predicting recurrence, metastasis, and overall prognosis in patients with solid cancers.
Collapse
Affiliation(s)
- Karuna Mittal
- Department of Biology, Georgia State University, 100 Piedmont Ave, Atlanta, GA, 30303, USA
| | - Jaspreet Kaur
- Department of Biology, Georgia State University, 100 Piedmont Ave, Atlanta, GA, 30303, USA
| | - Meghan Jaczko
- Department of Biology, Georgia State University, 100 Piedmont Ave, Atlanta, GA, 30303, USA
| | - Guanhao Wei
- Department of Biology, Georgia State University, 100 Piedmont Ave, Atlanta, GA, 30303, USA
| | - Michael S Toss
- Department of Pathology, University of Nottingham and Nottingham University Hospitals, Nottingham, UK
| | - Emad A Rakha
- Department of Pathology, University of Nottingham and Nottingham University Hospitals, Nottingham, UK
| | | | - Håvard Søiland
- Department of Breast and Endocrine Surgery, Stavanger University Hospital, Stavanger, Norway
| | - Omer Kucuk
- Winship Cancer Institute, Department of Hematology and Medical Oncology, Emory University Hospital, Atlanta, GA, USA
| | | | | | - Ritu Aneja
- Department of Biology, Georgia State University, 100 Piedmont Ave, Atlanta, GA, 30303, USA.
| |
Collapse
|
2
|
Song H, Zhao C, Yu Z, Li Q, Yan R, Qin Y, Jia M, Zhao W. UAF1 deubiquitinase complexes facilitate NLRP3 inflammasome activation by promoting NLRP3 expression. Nat Commun 2020; 11:6042. [PMID: 33247121 PMCID: PMC7695691 DOI: 10.1038/s41467-020-19939-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/05/2020] [Indexed: 02/08/2023] Open
Abstract
NOD-like receptor protein 3 (NLRP3) detects microbial infections or endogenous danger signals and activates the NLRP3 inflammasome, which has important functions in host defense and contributes to the pathogenesis of inflammatory diseases, and thereby needs to be tightly controlled. Deubiquitination of NLRP3 is considered a key step in NLRP3 inflammasome activation. However, the mechanisms by which deubiquitination controls NLRP3 inflammasome activation are unclear. Here, we show that the UAF1/USP1 deubiquitinase complex selectively removes K48-linked polyubiquitination of NLRP3 and suppresses its ubiquitination-mediated degradation, enhancing cellular NLRP3 levels, which are indispensable for subsequent NLRP3 inflammasome assembly and activation. In addition, the UAF1/USP12 and UAF1/USP46 complexes promote NF-κB activation, enhance the transcription of NLRP3 and proinflammatory cytokines (including pro-IL-1β, TNF, and IL-6) by inhibiting ubiquitination-mediated degradation of p65. Consequently, Uaf1 deficiency attenuates NLRP3 inflammasome activation and IL-1β secretion both in vitro and in vivo. Our study reveals that the UAF1 deubiquitinase complexes enhance NLRP3 and pro-IL-1β expression by targeting NLRP3 and p65 and licensing NLRP3 inflammasome activation. NLRP3 inflammasome activation is regulated by various signaling pathways to ensure inflammation does not go unchecked. Here the authors show how deubiquitination avoids this regulation to activate the NLRP3 inflammasome through the function of UAF1/USP deubiquitinase complexes.
Collapse
Affiliation(s)
- Hui Song
- Department of Immunology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, 250012, Jinan, Shandong, China.,State Key Laboratory of Microbial Technology, Shandong University, 250012, Jinan, Shandong, China
| | - Chunyuan Zhao
- Department of Immunology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, 250012, Jinan, Shandong, China.,State Key Laboratory of Microbial Technology, Shandong University, 250012, Jinan, Shandong, China.,Department of Cell Biology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, 250012, Jinan, Shandong, China
| | - Zhongxia Yu
- Department of Immunology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, 250012, Jinan, Shandong, China.,State Key Laboratory of Microbial Technology, Shandong University, 250012, Jinan, Shandong, China
| | - Qizhao Li
- Department of Immunology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, 250012, Jinan, Shandong, China.,State Key Laboratory of Microbial Technology, Shandong University, 250012, Jinan, Shandong, China
| | - Rongzhen Yan
- Department of Immunology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, 250012, Jinan, Shandong, China.,State Key Laboratory of Microbial Technology, Shandong University, 250012, Jinan, Shandong, China
| | - Ying Qin
- Department of Immunology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, 250012, Jinan, Shandong, China.,State Key Laboratory of Microbial Technology, Shandong University, 250012, Jinan, Shandong, China
| | - Mutian Jia
- Department of Immunology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, 250012, Jinan, Shandong, China.,State Key Laboratory of Microbial Technology, Shandong University, 250012, Jinan, Shandong, China
| | - Wei Zhao
- Department of Immunology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, 250012, Jinan, Shandong, China. .,State Key Laboratory of Microbial Technology, Shandong University, 250012, Jinan, Shandong, China.
| |
Collapse
|
3
|
Li Y, Xu Y, Gao C, Sun Y, Zhou K, Wang P, Cheng J, Guo W, Ya C, Fan J, Yang X. USP1 Maintains the Survival of Liver Circulating Tumor Cells by Deubiquitinating and Stabilizing TBLR1. Front Oncol 2020; 10:554809. [PMID: 33102219 PMCID: PMC7545832 DOI: 10.3389/fonc.2020.554809] [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: 06/24/2020] [Accepted: 09/07/2020] [Indexed: 12/15/2022] Open
Abstract
The prognosis of hepatocellular carcinoma (HCC) is closely associated with the occurrence of distant metastases, which is likely due to circulating tumor cells (CTCs). However, the low number of CTCs is the main obstacle limiting research of the mechanism of CTC metastasis. Here, We evaluated the role of ubiquitin-specific protease 1 (USP1) in promoting CTC survival during blood-borne metastases. We observed that USP1 was frequently upregulated in CTCs and correlated with metastasis and a reduced overall survival rate of patients. Additionally, genetic knockout of USP1 the survival rate of CTCs. Further analyses showed that USP1 mediates oncogenic activity by deubiquitinating and stabilizing transducin β-like 1 X-linked receptor 1 (TBLR1), which plays essential roles in regulating Wnt signaling. These results demonstrated that USP1 may act as an essential factor in promoting the survival of CTCs and suggest that inhibition of USP1 is a potential strategy for HCC treatment.
Collapse
Affiliation(s)
- Yuancheng Li
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Key Laboratory of Carcinogenesis and Cancer Invasion, Department of Liver Surgery, Ministry of Education, Zhongshan Hospital, Liver Cancer Institute, Fudan University, Shanghai, China
| | - Yang Xu
- Key Laboratory of Carcinogenesis and Cancer Invasion, Department of Liver Surgery, Ministry of Education, Zhongshan Hospital, Liver Cancer Institute, Fudan University, Shanghai, China
| | - Chao Gao
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Key Laboratory of Carcinogenesis and Cancer Invasion, Department of Liver Surgery, Ministry of Education, Zhongshan Hospital, Liver Cancer Institute, Fudan University, Shanghai, China
| | - Yunfan Sun
- Key Laboratory of Carcinogenesis and Cancer Invasion, Department of Liver Surgery, Ministry of Education, Zhongshan Hospital, Liver Cancer Institute, Fudan University, Shanghai, China
| | - Kaiqian Zhou
- Key Laboratory of Carcinogenesis and Cancer Invasion, Department of Liver Surgery, Ministry of Education, Zhongshan Hospital, Liver Cancer Institute, Fudan University, Shanghai, China
| | - Pengxiang Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Department of Liver Surgery, Ministry of Education, Zhongshan Hospital, Liver Cancer Institute, Fudan University, Shanghai, China
| | - Jianweng Cheng
- Key Laboratory of Carcinogenesis and Cancer Invasion, Department of Liver Surgery, Ministry of Education, Zhongshan Hospital, Liver Cancer Institute, Fudan University, Shanghai, China
| | - Wei Guo
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Cao Ya
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Jia Fan
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Key Laboratory of Carcinogenesis and Cancer Invasion, Department of Liver Surgery, Ministry of Education, Zhongshan Hospital, Liver Cancer Institute, Fudan University, Shanghai, China
| | - Xinrong Yang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Department of Liver Surgery, Ministry of Education, Zhongshan Hospital, Liver Cancer Institute, Fudan University, Shanghai, China
| |
Collapse
|
4
|
Kim SJ, Wie M, Park SH, Kim TM, Park JH, Kim S, Myung K, Lee KY. ATAD5 suppresses centrosome over-duplication by regulating UAF1 and ID1. Cell Cycle 2020; 19:1952-1968. [PMID: 32594826 PMCID: PMC7469630 DOI: 10.1080/15384101.2020.1785724] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Centrosomes are the primary microtubule-organizing centers that are important for mitotic spindle assembly. Centrosome amplification is commonly observed in human cancer cells and contributes to genomic instability. However, it is not clear how centrosome duplication is dysregulated in cancer cells. Here, we report that ATAD5, a replisome protein that unloads PCNA from chromatin as a replication factor C-like complex (RLC), plays an important role in regulating centrosome duplication. ATAD5 is present at the centrosome, specifically at the base of the mother and daughter centrioles that undergo duplication. UAF1, which interacts with ATAD5 and regulates PCNA deubiquitination as a complex with ubiquitin-specific protease 1, is also localized at the centrosome. Depletion of ATAD5 or UAF1 increases cells with over-duplicated centrosome whereas ATAD5 overexpression reduces such cells. Consistently, the proportion of cells showing the multipolar mode of chromosome segregation is increased among ATAD5-depleted cells. The localization and function of ATAD5 at the centrosomes do not require other RLC subunits. UAF1 interacts and co-localizes with ID1, a protein that increases centrosome amplification upon overexpression. ATAD5 depletion reduces interactions between UAF1 and ID1 and increases ID1 signal at the centrosome, providing a mechanistic framework for understanding the role of ATAD5 in centrosome duplication.
Collapse
Affiliation(s)
- Seong-Jung Kim
- Center for Genomic Integrity, Institute for Basic Science , Ulsan, Korea.,Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology , Ulsan, Korea
| | - Minwoo Wie
- Center for Genomic Integrity, Institute for Basic Science , Ulsan, Korea.,Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology , Ulsan, Korea
| | - Su Hyung Park
- Center for Genomic Integrity, Institute for Basic Science , Ulsan, Korea
| | - Tae Moon Kim
- Center for Genomic Integrity, Institute for Basic Science , Ulsan, Korea
| | - Jun Hong Park
- Center for Genomic Integrity, Institute for Basic Science , Ulsan, Korea.,Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine , Naju-si, Republic of Korea
| | - Shinseog Kim
- Center for Genomic Integrity, Institute for Basic Science , Ulsan, Korea
| | - Kyungjae Myung
- Center for Genomic Integrity, Institute for Basic Science , Ulsan, Korea.,Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology , Ulsan, Korea
| | - Kyoo-Young Lee
- Center for Genomic Integrity, Institute for Basic Science , Ulsan, Korea
| |
Collapse
|
5
|
Ma L, Lin K, Chang G, Chen Y, Yue C, Guo Q, Zhang S, Jia Z, Huang TT, Zhou A, Huang S. Aberrant Activation of β-Catenin Signaling Drives Glioma Tumorigenesis via USP1-Mediated Stabilization of EZH2. Cancer Res 2018; 79:72-85. [PMID: 30425057 DOI: 10.1158/0008-5472.can-18-1304] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 09/24/2018] [Accepted: 11/07/2018] [Indexed: 11/16/2022]
Abstract
Aberrant activation of β-catenin signaling is a critical driver for tumorigenesis, but the mechanism underlying this activation is not completely understood. In this study, we demonstrate a critical role of β-catenin signaling in stabilization of enhancer of zeste homolog 2 (EZH2) and control of EZH2-mediated gene repression in oncogenesis. β-Catenin/TCF4 activated the transcription of the deubiquitinase USP1, which then interacted with and deubiquitinated EZH2 directly. USP1-mediated stabilization of EZH2 promoted its recruitment to the promoters of CDKN1B, RUNX3, and HOXA5, resulting in enhanced enrichment of histone H3K27me3 and repression of target gene expression. In human glioma specimens, expression levels of nuclear β-catenin, USP1, and EZH2 correlated with one another. Depletion of β-catenin/USP1/EZH2 repressed glioma cell proliferation in vitro and tumor formation in vivo. Our findings indicate that a β-catenin-USP1-EZH2 axis orchestrates the interplay between dysregulated β-catenin signaling and EZH2-mediated gene epigenetic silencing during glioma tumorigenesis. SIGNIFICANCE: These findings identify the β-catenin-USP1-EZH2 signaling axis as a critical mechanism for glioma tumorigenesis that may serve as a new therapeutic target in glioblastoma.
Collapse
Affiliation(s)
- Li Ma
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Neuro-oncology and Neurosurgery, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Kangyu Lin
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Guoqiang Chang
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yiwen Chen
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Chen Yue
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Qing Guo
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sicong Zhang
- Department of Biochemistry and Molecular Biology, Rockefeller University, New York, New York
| | - Zhiliang Jia
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Tony T Huang
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, New York
| | - Aidong Zhou
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.
| | - Suyun Huang
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas. .,Program in Cancer Biology, The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas
| |
Collapse
|
6
|
Darling S, Fielding AB, Sabat-Pośpiech D, Prior IA, Coulson JM. Regulation of the cell cycle and centrosome biology by deubiquitylases. Biochem Soc Trans 2017; 45:1125-1136. [PMID: 28900014 PMCID: PMC5652225 DOI: 10.1042/bst20170087] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 08/04/2017] [Accepted: 08/07/2017] [Indexed: 12/12/2022]
Abstract
Post-translational modification of proteins by ubiquitylation is increasingly recognised as a highly complex code that contributes to the regulation of diverse cellular processes. In humans, a family of almost 100 deubiquitylase enzymes (DUBs) are assigned to six subfamilies and many of these DUBs can remove ubiquitin from proteins to reverse signals. Roles for individual DUBs have been delineated within specific cellular processes, including many that are dysregulated in diseases, particularly cancer. As potentially druggable enzymes, disease-associated DUBs are of increasing interest as pharmaceutical targets. The biology, structure and regulation of DUBs have been extensively reviewed elsewhere, so here we focus specifically on roles of DUBs in regulating cell cycle processes in mammalian cells. Over a quarter of all DUBs, representing four different families, have been shown to play roles either in the unidirectional progression of the cell cycle through specific checkpoints, or in the DNA damage response and repair pathways. We catalogue these roles and discuss specific examples. Centrosomes are the major microtubule nucleating centres within a cell and play a key role in forming the bipolar mitotic spindle required to accurately divide genetic material between daughter cells during cell division. To enable this mitotic role, centrosomes undergo a complex replication cycle that is intimately linked to the cell division cycle. Here, we also catalogue and discuss DUBs that have been linked to centrosome replication or function, including centrosome clustering, a mitotic survival strategy unique to cancer cells with supernumerary centrosomes.
Collapse
Affiliation(s)
- Sarah Darling
- Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, U.K
| | - Andrew B Fielding
- Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, U.K
| | - Dorota Sabat-Pośpiech
- Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, U.K
| | - Ian A Prior
- Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, U.K
| | - Judy M Coulson
- Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, U.K.
| |
Collapse
|
7
|
Wang Q, Tang Y, Xu Y, Xu S, Jiang Y, Dong Q, Zhou Y, Ge W. The X-linked deubiquitinase USP9X is an integral component of centrosome. J Biol Chem 2017; 292:12874-12884. [PMID: 28620049 DOI: 10.1074/jbc.m116.769943] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 06/02/2017] [Indexed: 12/23/2022] Open
Abstract
The X-linked deubiquitinase USP9X has been implicated in multiple pathological disorders including malignancies and X-linked intellectual disability. However, its biological function and substrate repertoire remain to be investigated. In this study, we utilized the tandem mass tag labeling assay to identify USP9X-regulated proteins and revealed that the expression of multiple genes is altered in USP9X-deficient cells. Interestingly, we showed that USP9X promotes stabilization of centrosome proteins PCM1 and CEP55 through its catalytic activity. Remarkably, we demonstrated that USP9X is physically associated and spatially co-localized with PCM1 and CEP55 in the centrosome, and we revealed that either PCM1 or CEP55 loss resulted in impairment of USP9X centrosome localization. Moreover, we showed that USP9X is required for centrosome duplication, and this effect is dependent on its catalytic activity and its N-terminal module, which is responsible for physical association of USP9X with PCM1 and CEP55. Collectively, our experiments identified USP9X as an integral component of the centrosome where it functions to stabilize PCM1 and CEP55 and promote centrosome biogenesis.
Collapse
Affiliation(s)
- Qian Wang
- National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - Yiman Tang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Yue Xu
- National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - Shilei Xu
- National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - Yong Jiang
- Department of General Dentistry II, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Qiuping Dong
- National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - Yongsheng Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.
| | - Wenshu Ge
- Department of General Dentistry II, Peking University School and Hospital of Stomatology, Beijing 100081, China.
| |
Collapse
|
8
|
USP9X regulates centrosome duplication and promotes breast carcinogenesis. Nat Commun 2017; 8:14866. [PMID: 28361952 PMCID: PMC5380967 DOI: 10.1038/ncomms14866] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Accepted: 01/31/2017] [Indexed: 12/23/2022] Open
Abstract
Defective centrosome duplication is implicated in microcephaly and primordial dwarfism as well as various ciliopathies and cancers. Yet, how the centrosome biogenesis is regulated remains poorly understood. Here we report that the X-linked deubiquitinase USP9X is physically associated with centriolar satellite protein CEP131, thereby stabilizing CEP131 through its deubiquitinase activity. We demonstrate that USP9X is an integral component of centrosome and is required for centrosome biogenesis. Loss-of-function of USP9X impairs centrosome duplication and gain-of-function of USP9X promotes centrosome amplification and chromosome instability. Significantly, USP9X is overexpressed in breast carcinomas, and its level of expression is correlated with that of CEP131 and higher histologic grades of breast cancer. Indeed, USP9X, through regulation of CEP131 abundance, promotes breast carcinogenesis. Our experiments identify USP9X as an important regulator of centrosome biogenesis and uncover a critical role for USP9X/CEP131 in breast carcinogenesis, supporting the pursuit of USP9X/CEP131 as potential targets for breast cancer intervention. USP9X is a deubiquitinating enzyme with many known substrates and functions; it has been linked to cancer but the mechanisms remain unclear. Here Li et al. report that USP9X stabilizes the centrosomal protein CEP131 leading to centrosome amplification and breast cancer development.
Collapse
|