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Yoshino Y, Ogoh H, Iichi Y, Sasaki T, Yoshida T, Ichimura S, Nakayama M, Xi W, Fujita H, Kikuchi M, Fang Z, Li X, Abe T, Futakuchi M, Nakamura Y, Watanabe T, Chiba N. Knockout of Brca1-interacting factor Ola1 in female mice induces tumors with estrogen suppressible centrosome amplification. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167138. [PMID: 38537683 DOI: 10.1016/j.bbadis.2024.167138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 03/06/2024] [Accepted: 03/18/2024] [Indexed: 04/08/2024]
Abstract
Obg-like ATPase 1 (OLA1) is a binding protein of Breast cancer gene 1 (BRCA1), germline pathogenic variants of which cause hereditary breast cancer. Cancer-associated variants of BRCA1 and OLA1 are deficient in the regulation of centrosome number. Although OLA1 might function as a tumor suppressor, the relevance of OLA1 deficiency to carcinogenesis is unclear. Here, we generated Ola1 knockout mice. Aged female Ola1+/- mice developed lymphoproliferative diseases, including malignant lymphoma. The lymphoma tissues had low expression of Ola1 and an increase in the number of cells with centrosome amplification. Interestingly, the proportion of cells with centrosome amplification in normal spleen from Ola1+/- mice was higher in male mice than in female mice. In human cells, estrogen stimulation attenuated centrosome amplification induced by OLA1 knockdown. Previous reports indicate that prominent centrosome amplification causes cell death but does not promote tumorigenesis. Thus, in the current study, the mild centrosome amplification observed under estrogen stimulation in Ola1+/- female mice is likely more tumorigenic than the prominent centrosome amplification observed in Ola1+/- male mice. Our findings provide a possible sex-dependent mechanism of the tumor suppressor function of OLA1.
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Affiliation(s)
- Yuki Yoshino
- Department of Cancer Biology, Institute of Aging, Development, and Cancer, Tohoku University, 4-1 Seiryomachi, Aoba-ku, Sendai 980-8575, Japan; Laboratory of Cancer Biology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan; Department of Cancer Biology, Tohoku University Graduate School of Medicine, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Honami Ogoh
- Department of Biological Science, Graduate School of Humanities and Sciences, Nara Women's University, Kitauoya-Nishimachi, Nara, 630-8506, Japan
| | - Yudai Iichi
- Department of Cancer Biology, Institute of Aging, Development, and Cancer, Tohoku University, 4-1 Seiryomachi, Aoba-ku, Sendai 980-8575, Japan; Laboratory of Cancer Biology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Tomohiro Sasaki
- Department of Cancer Biology, Institute of Aging, Development, and Cancer, Tohoku University, 4-1 Seiryomachi, Aoba-ku, Sendai 980-8575, Japan; Laboratory of Cancer Biology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Takahiro Yoshida
- Department of Cancer Biology, Institute of Aging, Development, and Cancer, Tohoku University, 4-1 Seiryomachi, Aoba-ku, Sendai 980-8575, Japan; Laboratory of Cancer Biology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Shiori Ichimura
- Department of Cancer Biology, Institute of Aging, Development, and Cancer, Tohoku University, 4-1 Seiryomachi, Aoba-ku, Sendai 980-8575, Japan; Laboratory of Cancer Biology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Masahiro Nakayama
- Department of Molecular Immunology, Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan; Laboratory of Molecular Immunology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Wu Xi
- Department of Cancer Biology, Institute of Aging, Development, and Cancer, Tohoku University, 4-1 Seiryomachi, Aoba-ku, Sendai 980-8575, Japan; Laboratory of Cancer Biology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Hiroki Fujita
- Department of Cancer Biology, Institute of Aging, Development, and Cancer, Tohoku University, 4-1 Seiryomachi, Aoba-ku, Sendai 980-8575, Japan; Laboratory of Cancer Biology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Megumi Kikuchi
- Department of Cancer Biology, Institute of Aging, Development, and Cancer, Tohoku University, 4-1 Seiryomachi, Aoba-ku, Sendai 980-8575, Japan; Laboratory of Cancer Biology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Zhenzhou Fang
- Department of Cancer Biology, Institute of Aging, Development, and Cancer, Tohoku University, 4-1 Seiryomachi, Aoba-ku, Sendai 980-8575, Japan; Department of Cancer Biology, Tohoku University Graduate School of Medicine, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Xingming Li
- Department of Cancer Biology, Institute of Aging, Development, and Cancer, Tohoku University, 4-1 Seiryomachi, Aoba-ku, Sendai 980-8575, Japan; Laboratory of Cancer Biology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Takaya Abe
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Mitsuru Futakuchi
- Department of Pathology, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata 990-9585, Japan
| | - Yasuhiro Nakamura
- Division of Pathology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1 Fukumuro, Miyagino-ku, Sendai 983-8536, Japan
| | - Toshio Watanabe
- Department of Biological Science, Graduate School of Humanities and Sciences, Nara Women's University, Kitauoya-Nishimachi, Nara, 630-8506, Japan
| | - Natsuko Chiba
- Department of Cancer Biology, Institute of Aging, Development, and Cancer, Tohoku University, 4-1 Seiryomachi, Aoba-ku, Sendai 980-8575, Japan; Laboratory of Cancer Biology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan; Department of Cancer Biology, Tohoku University Graduate School of Medicine, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan.
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Braun VZ, Karbon G, Schuler F, Schapfl MA, Weiss JG, Petermann PY, Spierings DC, Tijhuis AE, Foijer F, Labi V, Villunger A. Extra centrosomes delay DNA damage-driven tumorigenesis. SCIENCE ADVANCES 2024; 10:eadk0564. [PMID: 38552015 PMCID: PMC10980279 DOI: 10.1126/sciadv.adk0564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 02/23/2024] [Indexed: 04/01/2024]
Abstract
Deregulated centrosome numbers are frequently found in human cancer and can promote malignancies in model organisms. Current research aims to clarify if extra centrosomes are cause or consequence of malignant transformation, and if their biogenesis can be targeted for therapy. Here, we show that oncogene-driven blood cancer is inert to genetic manipulation of centrosome numbers, whereas the formation of DNA damage-induced malignancies is delayed. We provide first evidence that this unexpected phenomenon is connected to extra centrosomes eliciting a pro-death signal engaging the apoptotic machinery. Apoptosis induction requires the PIDDosome multi-protein complex, as it can be abrogated by loss of any of its three components, Caspase-2, Raidd/Cradd, or Pidd1. BCL2 overexpression equally blocks cell death, documenting for the first time induction of mitochondrial apoptosis downstream of extra centrosomes. Our findings demonstrate context-dependent effects of centrosome amplification during transformation and ask to adjust current belief that extra centrosomes are intrinsically pro-tumorigenic.
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Affiliation(s)
- Vincent Z. Braun
- Institute for Developmental Immunology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Gerlinde Karbon
- Institute for Developmental Immunology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Fabian Schuler
- Institute for Developmental Immunology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Marina A. Schapfl
- Institute for Developmental Immunology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Johannes G. Weiss
- Institute for Developmental Immunology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
- Department of Paediatrics I, Medical University of Innsbruck, Innsbruck, Austria
| | - Paul Y. Petermann
- Institute for Developmental Immunology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Diana C.J. Spierings
- European Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Andrea E. Tijhuis
- European Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Floris Foijer
- European Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Verena Labi
- Institute for Developmental Immunology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Andreas Villunger
- Institute for Developmental Immunology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
- The CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
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3
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Athwal H, Kochiyanil A, Bhat V, Allan AL, Parsyan A. Centrosomes and associated proteins in pathogenesis and treatment of breast cancer. Front Oncol 2024; 14:1370565. [PMID: 38606093 PMCID: PMC11007099 DOI: 10.3389/fonc.2024.1370565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 03/04/2024] [Indexed: 04/13/2024] Open
Abstract
Breast cancer is the most prevalent malignancy among women worldwide. Despite significant advances in treatment, it remains one of the leading causes of female mortality. The inability to effectively treat advanced and/or treatment-resistant breast cancer demonstrates the need to develop novel treatment strategies and targeted therapies. Centrosomes and their associated proteins have been shown to play key roles in the pathogenesis of breast cancer and thus represent promising targets for drug and biomarker development. Centrosomes are fundamental cellular structures in the mammalian cell that are responsible for error-free execution of cell division. Centrosome amplification and aberrant expression of its associated proteins such as Polo-like kinases (PLKs), Aurora kinases (AURKs) and Cyclin-dependent kinases (CDKs) have been observed in various cancers, including breast cancer. These aberrations in breast cancer are thought to cause improper chromosomal segregation during mitosis, leading to chromosomal instability and uncontrolled cell division, allowing cancer cells to acquire new genetic changes that result in evasion of cell death and the promotion of tumor formation. Various chemical compounds developed against PLKs and AURKs have shown meaningful antitumorigenic effects in breast cancer cells in vitro and in vivo. The mechanism of action of these inhibitors is likely related to exacerbation of numerical genomic instability, such as aneuploidy or polyploidy. Furthermore, growing evidence demonstrates enhanced antitumorigenic effects when inhibitors specific to centrosome-associated proteins are used in combination with either radiation or chemotherapy drugs in breast cancer. This review focuses on the current knowledge regarding the roles of centrosome and centrosome-associated proteins in breast cancer pathogenesis and their utility as novel targets for breast cancer treatment.
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Affiliation(s)
- Harjot Athwal
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Arpitha Kochiyanil
- Faculty of Science, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Vasudeva Bhat
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- London Regional Cancer Program, London Health Sciences Centre, Lawson Health Research Institute, London, ON, Canada
| | - Alison L. Allan
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- London Regional Cancer Program, London Health Sciences Centre, Lawson Health Research Institute, London, ON, Canada
- Department of Oncology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Armen Parsyan
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- London Regional Cancer Program, London Health Sciences Centre, Lawson Health Research Institute, London, ON, Canada
- Department of Oncology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- Division of General Surgery, Department of Surgery, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- Department of Surgery, St. Joseph’s Health Care London and London Health Sciences Centre, London, ON, Canada
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4
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Lei Q, Yu Q, Yang N, Xiao Z, Song C, Zhang R, Yang S, Liu Z, Deng H. Therapeutic potential of targeting polo-like kinase 4. Eur J Med Chem 2024; 265:116115. [PMID: 38199166 DOI: 10.1016/j.ejmech.2023.116115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/21/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024]
Abstract
Polo-like kinase 4 (PLK4), a highly conserved serine/threonine kinase, masterfully regulates centriole duplication in a spatiotemporal manner to ensure the fidelity of centrosome duplication and proper mitosis. Abnormal expression of PLK4 contributes to genomic instability and associates with a poor prognosis in cancer. Inhibition of PLK4 is demonstrated to exhibit significant efficacy against various types of human cancers, further highlighting its potential as a promising therapeutic target for cancer treatment. As such, numerous small-molecule inhibitors with distinct chemical scaffolds targeting PLK4 have been extensively investigated for the treatment of different human cancers, with several undergoing clinical evaluation (e.g., CFI-400945). Here, we review the structure, distribution, and biological functions of PLK4, encapsulate its intricate regulatory mechanisms of expression, and highlighting its multifaceted roles in cancer development and metastasis. Moreover, the recent advancements of PLK4 inhibitors in patent or literature are summarized, and their therapeutic potential as monotherapies or combination therapies with other anticancer agents are also discussed.
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Affiliation(s)
- Qian Lei
- Department of Respiratory and Critical Care Medicine, West China Hospital and Targeted Tracer Research and Development Laboratory, Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Quanwei Yu
- Department of Respiratory and Critical Care Medicine, West China Hospital and Targeted Tracer Research and Development Laboratory, Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Na Yang
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Zhaolin Xiao
- Department of Respiratory and Critical Care Medicine, West China Hospital and Targeted Tracer Research and Development Laboratory, Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Chao Song
- Department of Respiratory and Critical Care Medicine, West China Hospital and Targeted Tracer Research and Development Laboratory, Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Rui Zhang
- Department of Pharmacy, Guizhou Provincial People's Hospital, Guizhou, Guiyang, 550002, China
| | - Shuxin Yang
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Zhihao Liu
- Department of Emergency Medicine and Laboratory of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
| | - Hui Deng
- Department of Respiratory and Critical Care Medicine, West China Hospital and Targeted Tracer Research and Development Laboratory, Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
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5
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Köhrer S, Dittrich T, Schorb M, Weinhold N, Haberbosch I, Börmel M, Pajor G, Goldschmidt H, Müller-Tidow C, Raab MS, John L, Seckinger A, Brobeil A, Dreger P, Tornóczky T, Pajor L, Hegenbart U, Schönland SO, Schwab Y, Krämer A. High-throughput electron tomography identifies centriole over-elongation as an early event in plasma cell disorders. Leukemia 2023; 37:2468-2478. [PMID: 37821581 PMCID: PMC10681902 DOI: 10.1038/s41375-023-02056-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/14/2023] [Accepted: 09/29/2023] [Indexed: 10/13/2023]
Abstract
Plasma cell disorders are clonal outgrowths of pre-malignant or malignant plasma cells, characterized by extensive chromosomal aberrations. Centrosome abnormalities are a major driver of chromosomal instability in cancer but their origin, incidence, and composition in primary tumor cells is poorly understood. Using cutting-edge, semi-automated high-throughput electron tomography, we characterized at nanoscale 1386 centrioles in CD138pos plasma cells from eight healthy donors and 21 patients with plasma cell disorders, and 722 centrioles from different control populations. In plasma cells from healthy individuals, over-elongated centrioles accumulated with age. In plasma cell disorders, centriole over-elongation was notably frequent in early, pre-malignant disease stages, became less pronounced in overt multiple myeloma, and almost entirely disappeared in aggressive plasma cell leukemia. Centrioles in other types of patient-derived B cell neoplasms showed no over-elongation. In contrast to current belief, centriole length appears to be highly variable in long-lived, healthy plasma cells, and over-elongation and structural aberrations are common in this cell type. Our data suggest that structural centrosome aberrations accumulate with age in healthy CD138pos plasma cells and may thus play an important role in early aneuploidization as an oncogenic driver in plasma cell disorders.
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Affiliation(s)
- Sebastian Köhrer
- Clinical Cooperation Unit Molecular Hematology/Oncology, German Cancer Research Center (DKFZ) and Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
| | - Tobias Dittrich
- Clinical Cooperation Unit Molecular Hematology/Oncology, German Cancer Research Center (DKFZ) and Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
- Amyloidosis Center, University of Heidelberg, Heidelberg, Germany
| | - Martin Schorb
- Electron Microscopy Core Facility, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
| | - Niels Weinhold
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
| | - Isabella Haberbosch
- Clinical Cooperation Unit Molecular Hematology/Oncology, German Cancer Research Center (DKFZ) and Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
| | - Mandy Börmel
- Electron Microscopy Core Facility, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
| | - Gabor Pajor
- Clinical Cooperation Unit Molecular Hematology/Oncology, German Cancer Research Center (DKFZ) and Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
- Department of Pathology, University of Pécs Medical School and Clinic, Pécs, Hungary
| | - Hartmut Goldschmidt
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
- Department of Internal Medicine V, GMMG-Studygroup at University of Heidelberg, Heidelberg, Germany
| | - Carsten Müller-Tidow
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
- National Center for Tumor Diseases (NCT), University of Heidelberg, Heidelberg, Germany
| | - Marc S Raab
- Clinical Cooperation Unit Molecular Hematology/Oncology, German Cancer Research Center (DKFZ) and Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
| | - Lukas John
- Clinical Cooperation Unit Molecular Hematology/Oncology, German Cancer Research Center (DKFZ) and Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
| | - Anja Seckinger
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
| | - Alexander Brobeil
- Institute of Pathology, University of Heidelberg, Heidelberg, Germany
| | - Peter Dreger
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
| | - Tamás Tornóczky
- Department of Pathology, University of Pécs Medical School and Clinic, Pécs, Hungary
| | - László Pajor
- Department of Pathology, University of Pécs Medical School and Clinic, Pécs, Hungary
| | - Ute Hegenbart
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
- Amyloidosis Center, University of Heidelberg, Heidelberg, Germany
| | - Stefan O Schönland
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
- Amyloidosis Center, University of Heidelberg, Heidelberg, Germany
| | - Yannick Schwab
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany.
- Electron Microscopy Core Facility, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany.
| | - Alwin Krämer
- Clinical Cooperation Unit Molecular Hematology/Oncology, German Cancer Research Center (DKFZ) and Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany.
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany.
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6
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Bloomfield M, Cimini D. The fate of extra centrosomes in newly formed tetraploid cells: should I stay, or should I go? Front Cell Dev Biol 2023; 11:1210983. [PMID: 37576603 PMCID: PMC10413984 DOI: 10.3389/fcell.2023.1210983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 07/17/2023] [Indexed: 08/15/2023] Open
Abstract
An increase in centrosome number is commonly observed in cancer cells, but the role centrosome amplification plays along with how and when it occurs during cancer development is unclear. One mechanism for generating cancer cells with extra centrosomes is whole genome doubling (WGD), an event that occurs in over 30% of human cancers and is associated with poor survival. Newly formed tetraploid cells can acquire extra centrosomes during WGD, and a generally accepted model proposes that centrosome amplification in tetraploid cells promotes cancer progression by generating aneuploidy and chromosomal instability. Recent findings, however, indicate that newly formed tetraploid cells in vitro lose their extra centrosomes to prevent multipolar cell divisions. Rather than persistent centrosome amplification, this evidence raises the possibility that it may be advantageous for tetraploid cells to initially restore centrosome number homeostasis and for a fraction of the population to reacquire additional centrosomes in the later stages of cancer evolution. In this review, we explore the different evolutionary paths available to newly formed tetraploid cells, their effects on centrosome and chromosome number distribution in daughter cells, and their probabilities of long-term survival. We then discuss the mechanisms that may alter centrosome and chromosome numbers in tetraploid cells and their relevance to cancer progression following WGD.
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Affiliation(s)
- Mathew Bloomfield
- Department of Biological Sciences and Fralin Life Sciences Institute, Virginia Tech, Blacksburg, VA, United States
| | - Daniela Cimini
- Department of Biological Sciences and Fralin Life Sciences Institute, Virginia Tech, Blacksburg, VA, United States
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7
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Song S, Jung S, Kwon M. Expanding roles of centrosome abnormalities in cancers. BMB Rep 2023; 56:216-224. [PMID: 36945828 PMCID: PMC10140484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/15/2023] [Accepted: 03/22/2023] [Indexed: 03/23/2023] Open
Abstract
Centrosome abnormalities are hallmarks of human cancers. Structural and numerical centrosome abnormalities correlate with tumor aggressiveness and poor prognosis, implicating that centrosome abnormalities could be a cause of tumorigenesis. Since Boveri made his pioneering recognition of the potential causal link between centrosome abnormalities and cancer more than a century ago, there has been significant progress in the field. Here, we review recent advances in the understanding of the causes and consequences of centrosome abnormalities and their connection to cancers. Centrosome abnormalities can drive the initiation and progression of cancers in multiple ways. For example, they can generate chromosome instability through abnormal mitosis, accelerating cancer genome evolution. Remarkably, it is becoming clear that the mechanisms by which centrosome abnormalities promote several steps of tumorigenesis are far beyond what Boveri had initially envisioned. We highlight various cancer-promoting mechanisms exerted by cells with centrosome abnormalities and how these cells possessing oncogenic potential can be monitored. [BMB Reports 2023; 56(4): 216-224].
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Affiliation(s)
- Soohyun Song
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea
- Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Korea
| | - Surim Jung
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea
- Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Korea
| | - Mijung Kwon
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea
- Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Korea
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8
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Wu SK, Ariffin J, Tay SC, Picone R. The variant senescence-associated secretory phenotype induced by centrosome amplification constitutes a pathway that activates hypoxia-inducible factor-1α. Aging Cell 2023; 22:e13766. [PMID: 36660875 PMCID: PMC10014068 DOI: 10.1111/acel.13766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/13/2022] [Accepted: 12/15/2022] [Indexed: 01/21/2023] Open
Abstract
The senescence-associated secretory phenotype (SASP) can promote paracrine invasion while suppressing tumour growth, thus generating complex phenotypic outcomes. Likewise, centrosome amplification can induce proliferation arrest yet also facilitate tumour invasion. However, the eventual fate of cells with centrosome amplification remains elusive. Here, we report that centrosome amplification induces a variant of SASP, which constitutes a pathway activating paracrine invasion. The centrosome amplification-induced SASP is non-canonical as it lacks the archetypal detectable DNA damage and prominent NF-κB activation, but involves Rac activation and production of reactive oxygen species. Consequently, it induces hypoxia-inducible factor 1α and associated genes, including pro-migratory factors such as ANGPTL4. Of note, cellular senescence can either induce tumourigenesis through paracrine signalling or conversely suppress tumourigenesis through p53 induction. By analogy, centrosome amplification-induced SASP may therefore be one reason why extra centrosomes promote malignancy in some experimental models but are neutral in others.
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Affiliation(s)
- Selwin K. Wu
- Department of Cell BiologyHarvard Medical SchoolMassachusettsBostonUSA
- Department of Pediatric OncologyDana‐Farber Cancer InstituteMassachusettsBostonUSA
| | - Juliana Ariffin
- Department of SurgeryCancer Research Institute, Beth Israel Deaconess Medical Center, Harvard Medical SchoolMassachusettsBostonUSA
- Present address:
Mechanobiology Institute & Department of Biological SciencesNational University of SingaporeSingapore
| | - Shu Chian Tay
- Mechanobiology InstituteNational University of SingaporeSingapore
| | - Remigio Picone
- Department of Cell BiologyHarvard Medical SchoolMassachusettsBostonUSA
- Department of Pediatric OncologyDana‐Farber Cancer InstituteMassachusettsBostonUSA
- Present address:
Mechanobiology Institute & Department of Biological SciencesNational University of SingaporeSingapore
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9
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Tucker JB, Bonema SC, García-Varela R, Denu RA, Hu Y, McGregor SM, Burkard ME, Weaver BA. Misaligned Chromosomes are a Major Source of Chromosomal Instability in Breast Cancer. CANCER RESEARCH COMMUNICATIONS 2023; 3:54-65. [PMID: 36968230 PMCID: PMC10035514 DOI: 10.1158/2767-9764.crc-22-0302] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/17/2022] [Accepted: 12/22/2022] [Indexed: 12/31/2022]
Abstract
Chromosomal instability (CIN), the persistent reshuffling of chromosomes during mitosis, is a hallmark of human cancers that contributes to tumor heterogeneity and has been implicated in driving metastasis and altering responses to therapy. Though multiple mechanisms can produce CIN, lagging chromosomes generated from abnormal merotelic attachments are the major cause of CIN in a variety of cell lines, and are expected to predominate in cancer. Here, we quantify CIN in breast cancer using a tumor microarray, matched primary and metastatic samples, and patient-derived organoids from primary breast cancer. Surprisingly, misaligned chromosomes are more common than lagging chromosomes and represent a major source of CIN in primary and metastatic tumors. This feature of breast cancers is conserved in a majority of breast cancer cell lines. Importantly, though a portion of misaligned chromosomes align before anaphase onset, the fraction that remain represents the largest source of CIN in these cells. Metastatic breast cancers exhibit higher rates of CIN than matched primary cancers, primarily due to increases in misaligned chromosomes. Whether CIN causes immune activation or evasion is controversial. We find that misaligned chromosomes result in immune-activating micronuclei substantially less frequently than lagging and bridge chromosomes and that breast cancers with greater frequencies of lagging chromosomes and chromosome bridges recruit more stromal tumor-infiltrating lymphocytes. These data indicate misaligned chromosomes represent a major mechanism of CIN in breast cancer and provide support for differential immunostimulatory effects of specific types of CIN. Significance We surveyed the single-cell landscape of mitotic defects that generate CIN in primary and metastatic breast cancer and relevant models. Misaligned chromosomes predominate, and are less immunostimulatory than other chromosome segregation errors.
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Affiliation(s)
- John B. Tucker
- Cancer Biology Graduate Training Program, University of Wisconsin–Madison, Madison, Wisconsin
| | - Sarah C. Bonema
- Molecular and Cellular Pharmacology Graduate Training Program, University of Wisconsin–Madison, Madison, Wisconsin
| | | | - Ryan A. Denu
- Medical Scientist Training Program, University of Wisconsin–Madison, Madison, Wisconsin
| | - Yang Hu
- Medical Scientist Training Program, University of Wisconsin–Madison, Madison, Wisconsin
| | - Stephanie M. McGregor
- Department of Pathology and Laboratory Medicine, University of Wisconsin–Madison, Madison, Wisconsin
| | - Mark E. Burkard
- Department of Medicine, University of Wisconsin–Madison, Madison, Wisconsin
- Department of Oncology/McArdle Laboratory for Cancer Research, University of Wisconsin–Madison, Madison, Wisconsin
- Carbone Cancer Center, University of Wisconsin–Madison, Madison, Wisconsin
| | - Beth A. Weaver
- Department of Oncology/McArdle Laboratory for Cancer Research, University of Wisconsin–Madison, Madison, Wisconsin
- Carbone Cancer Center, University of Wisconsin–Madison, Madison, Wisconsin
- Department of Cell and Regenerative Biology, University of Wisconsin–Madison, Madison, Wisconsin
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10
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PLK4 Is a Potential Biomarker for Abnormal Tumor Proliferation, Immune Infiltration, and Prognosis in ccRCC. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:6302234. [PMID: 36176741 PMCID: PMC9514917 DOI: 10.1155/2022/6302234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 08/12/2022] [Accepted: 08/23/2022] [Indexed: 12/24/2022]
Abstract
Background PLK4 is highly expressed and associated with poor prognosis in various malignancies. However, the role of PLK4 in clear cell renal cell carcinoma (ccRCC) is still unclear. This study is aimed at analyzing the expression, the potential regulating mechanism, and the role of PLK4 in the ccRCC by bioinformatics. Methods PLK4 mRNA expression data and methylation levels in ccRCC were examined using TIMER, UALCAN, MethSurv, NCBI-GEO, and UCSC databases. Quantitative real-time PCR verifies the regulatory relationship between PLK4 and has-miR-214-3p. The GEPIA2 and STRING databases were used to find similar genes of PLK4 and then enriched with R language to analyze their similar genes. Correlations between PLK4 and tumor-infiltrating immune cells and cytokines exerting immunosuppression were analyzed using the TIMER database and the TISIDB databases. Results PLK4 mRNA expression levels were significantly higher in ccRCC tissues than in paracancerous tissues. ccRCC tissues had lower DNA methylation levels of PLK4 than normal tissues. Importantly, the high PLK4 expression was associated with poor prognosis in ccRCC patients. The has-miR-214-3p negatively regulates the expression of PLK4. GO and KEGG pathway analysis showed that PLK4 coexpressed genes were mainly associated with multiple immune-related pathways, including cytokinesis, sister chromatid adhesions, and mitotic nuclear division. Our data suggest that the PLK4 expression is closely related to the level of immune infiltration and the cytokines that exert immune suppression, and IPS was significantly higher in the PLK4 low expression group. Conclusion The PLK4 expression is associated with the prognosis of ccRCC patients and affects the immune microenvironment of ccRCC, and PLK4 is expected to be a new target for the diagnosis and treatment of ccRCC.
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11
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Centrosome Defects in Hematological Malignancies: Molecular Mechanisms and Therapeutic Insights. BLOOD SCIENCE 2022; 4:143-151. [DOI: 10.1097/bs9.0000000000000127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 06/07/2022] [Indexed: 11/26/2022] Open
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12
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Tkach JM, Philip R, Sharma A, Strecker J, Durocher D, Pelletier L. Global cellular response to chemical perturbation of PLK4 activity and abnormal centrosome number. eLife 2022; 11:73944. [PMID: 35758262 PMCID: PMC9236612 DOI: 10.7554/elife.73944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 06/04/2022] [Indexed: 11/13/2022] Open
Abstract
Centrosomes act as the main microtubule organizing center (MTOC) in metazoans. Centrosome number is tightly regulated by limiting centriole duplication to a single round per cell cycle. This control is achieved by multiple mechanisms, including the regulation of the protein kinase PLK4, the most upstream facilitator of centriole duplication. Altered centrosome numbers in mouse and human cells cause p53-dependent growth arrest through poorly defined mechanisms. Recent work has shown that the E3 ligase TRIM37 is required for cell cycle arrest in acentrosomal cells. To gain additional insights into this process, we undertook a series of genome-wide CRISPR/Cas9 screens to identify factors important for growth arrest triggered by treatment with centrinone B, a selective PLK4 inhibitor. We found that TRIM37 is a key mediator of growth arrest after partial or full PLK4 inhibition. Interestingly, PLK4 cellular mobility decreased in a dose-dependent manner after centrinone B treatment. In contrast to recent work, we found that growth arrest after PLK4 inhibition correlated better with PLK4 activity than with mitotic length or centrosome number. These data provide insights into the global response to changes in centrosome number and PLK4 activity and extend the role for TRIM37 in regulating the abundance, localization, and function of centrosome proteins.
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Affiliation(s)
- Johnny M Tkach
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada
| | - Reuben Philip
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Amit Sharma
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada
| | - Jonathan Strecker
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Daniel Durocher
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Laurence Pelletier
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, Canada
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13
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Chromosomal Instability in Chronic Myeloid Leukemia: Mechanistic Insights and Effects. Cancers (Basel) 2022; 14:cancers14102533. [PMID: 35626137 PMCID: PMC9140097 DOI: 10.3390/cancers14102533] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 12/15/2022] Open
Abstract
The most recent two decades have seen tremendous progress in the understanding and treatment of chronic myeloid leukemia, a disease defined by the characteristic Philadelphia chromosome and the ensuing BCR::ABL fusion protein. However, the biology of the disease extends beyond the Philadelphia chromosome into a nebulous arena of chromosomal and genetic instability, which makes it a genetically heterogeneous disease. The BCR::ABL oncoprotein creates a fertile backdrop for oxidative damage to the DNA, along with impairment of genetic surveillance and the favoring of imprecise error-prone DNA repair pathways. These factors lead to growing chromosomal instability, manifested as additional chromosomal abnormalities along with other genetic aberrations. This worsens with disease progression to accelerated and blast phase, and modulates responses to tyrosine kinase inhibitors. Treatment options that target the genetic aberrations that mitigate chromosome instability might be a potential area for research in patients with advanced phase CML.
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14
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Wang YW, Chen SC, Gu DL, Yeh YC, Tsai JJ, Yang KT, Jou YS, Chou TY, Tang TK. A novel HIF1α-STIL-FOXM1 axis regulates tumor metastasis. J Biomed Sci 2022; 29:24. [PMID: 35365182 PMCID: PMC8973879 DOI: 10.1186/s12929-022-00807-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 03/24/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Metastasis is the major cause of morbidity and mortality in cancer that involves in multiple steps including epithelial-mesenchymal transition (EMT) process. Centrosome is an organelle that functions as the major microtubule organizing center (MTOC), and centrosome abnormalities are commonly correlated with tumor aggressiveness. However, the conclusive mechanisms indicating specific centrosomal proteins participated in tumor progression and metastasis remain largely unknown. METHODS The expression levels of centriolar/centrosomal genes in various types of cancers were first examined by in silico analysis of the data derived from The Cancer Genome Atlas (TCGA), Gene Expression Omnibus (GEO), and European Bioinformatics Institute (EBI) datasets. The expression of STIL (SCL/TAL1-interrupting locus) protein in clinical specimens was further assessed by Immunohistochemistry (IHC) analysis and the oncogenic roles of STIL in tumorigenesis were analyzed using in vitro and in vivo assays, including cell migration, invasion, xenograft tumor formation, and metastasis assays. The transcriptome differences between low- and high-STIL expression cells were analyzed by RNA-seq to uncover candidate genes involved in oncogenic pathways. The quantitative polymerase chain reaction (qPCR) and reporter assays were performed to confirm the results. The chromatin immunoprecipitation (ChIP)-qPCR assay was applied to demonstrate the binding of transcriptional factors to the promoter. RESULTS The expression of STIL shows the most significant increase in lung and various other types of cancers, and is highly associated with patients' survival rate. Depletion of STIL inhibits tumor growth and metastasis. Interestingly, excess STIL activates the EMT pathway, and subsequently enhances cancer cell migration and invasion. Importantly, we reveal an unexpected role of STIL in tumor metastasis. A subset of STIL translocate into nucleus and associate with FOXM1 (Forkhead box protein M1) to promote tumor metastasis and stemness via FOXM1-mediated downstream target genes. Furthermore, we demonstrate that hypoxia-inducible factor 1α (HIF1α) directly binds to the STIL promoter and upregulates STIL expression under hypoxic condition. CONCLUSIONS Our findings indicate that STIL promotes tumor metastasis through the HIF1α-STIL-FOXM1 axis, and highlight the importance of STIL as a promising therapeutic target for lung cancer treatment.
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Affiliation(s)
- Yi-Wei Wang
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Rd., Sec. 2, Taipei, 11529, Taiwan
| | - Shu-Chuan Chen
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Rd., Sec. 2, Taipei, 11529, Taiwan
| | - De-Leung Gu
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Rd., Sec. 2, Taipei, 11529, Taiwan
| | - Yi-Chen Yeh
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jhih-Jie Tsai
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Rd., Sec. 2, Taipei, 11529, Taiwan
| | - Kuo-Tai Yang
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Rd., Sec. 2, Taipei, 11529, Taiwan
- Dept. of Animal Science, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Yuh-Shan Jou
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Rd., Sec. 2, Taipei, 11529, Taiwan
| | - Teh-Ying Chou
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Tang K Tang
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Rd., Sec. 2, Taipei, 11529, Taiwan.
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15
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Hoffmann I. Role of Polo-like Kinases Plk1 and Plk4 in the Initiation of Centriole Duplication-Impact on Cancer. Cells 2022; 11:786. [PMID: 35269408 PMCID: PMC8908989 DOI: 10.3390/cells11050786] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/16/2022] [Accepted: 02/22/2022] [Indexed: 02/04/2023] Open
Abstract
Centrosomes nucleate and anchor microtubules and therefore play major roles in spindle formation and chromosome segregation during mitosis. Duplication of the centrosome occurs, similar to DNA, only once during the cell cycle. Aberration of the centrosome number is common in human tumors. At the core of centriole duplication is the conserved polo-like kinase 4, Plk4, and two structural proteins, STIL and Sas-6. In this review, I summarize and discuss developments in our understanding of the first steps of centriole duplication and their regulation.
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Affiliation(s)
- Ingrid Hoffmann
- F045, Cell Cycle Control and Carcinogenesis, Im Neuenheimer Feld 242, 69115 Heidelberg, Germany
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16
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Abstract
The centrosome is a multifunctional organelle that is known primarily for its microtubule organising function. Centrosomal defects caused by changes in centrosomal structure or number have been associated with human diseases ranging from congenital defects to cancer. We are only beginning to appreciate how the non-microtubule organising roles of the centrosome are related to these clinical conditions. In this review, we will discuss the historical evidence that led to the proposal that the centrosome participates in cell cycle regulation. We then summarize the body of work that describes the involvement of the mammalian centrosome in triggering cell cycle progression and checkpoint signalling. Then we will highlight work from the fission yeast model organism, revealing the molecular details that explain how the spindle pole body (SPB, the yeast functional equivalent of the centrosome), participates in these cell cycle transitions. Importantly, we will discuss some of the emerging questions from recent discoveries related to the role of the centrosome as a cell cycle regulator.
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17
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Kinesin Family Member C1 (KIFC1/HSET): A Potential Actionable Biomarker of Early Stage Breast Tumorigenesis and Progression of High-Risk Lesions. J Pers Med 2021; 11:jpm11121361. [PMID: 34945833 PMCID: PMC8708236 DOI: 10.3390/jpm11121361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 11/29/2021] [Accepted: 12/08/2021] [Indexed: 12/14/2022] Open
Abstract
The enigma of why some premalignant or pre-invasive breast lesions transform and progress while others do not remains poorly understood. Currently, no radiologic or molecular biomarkers exist in the clinic that can successfully risk-stratify high-risk lesions for malignant transformation or tumor progression as well as serve as a minimally cytotoxic actionable target for at-risk subpopulations. Breast carcinogenesis involves a series of key molecular deregulatory events that prompt normal cells to bypass tumor-suppressive senescence barriers. Kinesin family member C1 (KIFC1/HSET), which confers survival of cancer cells burdened with extra centrosomes, has been observed in premalignant and pre-invasive lesions, and its expression has been shown to correlate with increasing neoplastic progression. Additionally, KIFC1 has been associated with aggressive breast tumor molecular subtypes, such as basal-like and triple-negative breast cancers. However, the role of KIFC1 in malignant transformation and its potential as a predictive biomarker of neoplastic progression remain elusive. Herein, we review compelling evidence suggesting the involvement of KIFC1 in enabling pre-neoplastic cells to bypass senescence barriers necessary to become immortalized and malignant. We also discuss evidence inferring that KIFC1 levels may be higher in premalignant lesions with a greater inclination to transform and acquire aggressive tumor intrinsic subtypes. Collectively, this evidence provides a strong impetus for further investigation into KIFC1 as a potential risk-stratifying biomarker and minimally cytotoxic actionable target for high-risk patient subpopulations.
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18
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Sandhu S, Sou IF, Hunter JE, Salmon L, Wilson CL, Perkins ND, Hunter N, Davies OR, McClurg UL. Centrosome dysfunction associated with somatic expression of the synaptonemal complex protein TEX12. Commun Biol 2021; 4:1371. [PMID: 34880391 PMCID: PMC8654964 DOI: 10.1038/s42003-021-02887-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 11/12/2021] [Indexed: 12/22/2022] Open
Abstract
The synaptonemal complex (SC) is a supramolecular protein scaffold that mediates chromosome synapsis and facilitates crossing over during meiosis. In mammals, SC proteins are generally assumed to have no other function. Here, we show that SC protein TEX12 also localises to centrosomes during meiosis independently of chromosome synapsis. In somatic cells, ectopically expressed TEX12 similarly localises to centrosomes, where it is associated with centrosome amplification, a pathology correlated with cancer development. Indeed, TEX12 is identified as a cancer-testis antigen and proliferation of some cancer cells is TEX12-dependent. Moreover, somatic expression of TEX12 is aberrantly activated via retinoic acid signalling, which is commonly disregulated in cancer. Structure-function analysis reveals that phosphorylation of TEX12 on tyrosine 48 is important for centrosome amplification but not for recruitment of TEX12 to centrosomes. We conclude that TEX12 normally localises to meiotic centrosomes, but its misexpression in somatic cells can contribute to pathological amplification and dysfunction of centrosomes in cancers. Sandhu et al. report that the synaptonemal complex (SC) protein, TEX12, localises to centrosomes independently of the SC during meiosis. They also show that it provokes centrosome amplification in somatic cells, a pathology associated with cancer development.
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Affiliation(s)
- Sumit Sandhu
- Howard Hughes Medical Institute, Department of Microbiology and Molecular Genetics, University of California, Davis, CA, 95616, USA
| | - Ieng F Sou
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, UK
| | - Jill E Hunter
- Biosciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
| | - Lucy Salmon
- Biosciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
| | - Caroline L Wilson
- Biosciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
| | - Neil D Perkins
- Biosciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
| | - Neil Hunter
- Howard Hughes Medical Institute, Department of Microbiology and Molecular Genetics, University of California, Davis, CA, 95616, USA.
| | - Owen R Davies
- Biosciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK. .,Wellcome Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Michael Swann Building, Max Born Crescent, Edinburgh, EH9 3BF, UK.
| | - Urszula L McClurg
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, UK.
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19
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Roles of RACK1 in centrosome regulation and carcinogenesis. Cell Signal 2021; 90:110207. [PMID: 34843916 DOI: 10.1016/j.cellsig.2021.110207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 11/22/2022]
Abstract
Receptor for activated C kinase 1 (RACK1) regulates various cellular functions and signaling pathways by interacting with different proteins. Recently, we showed that RACK1 interacts with breast cancer gene 1 (BRCA1), which regulates centrosome duplication. RACK1 localizes to centrosomes and spindle poles and is involved in the proper centrosomal localization of BRCA1. The interaction between RACK1 and BRCA1 is critical for the regulation of centrosome number. In addition, RACK1 contributes to centriole duplication by regulating polo-like kinase 1 (PLK1) activity in S phase. RACK1 binds directly to PLK1 and Aurora A, promoting the phosphorylation of PLK1 and activating the Aurora A/PLK1 signaling axis. Overexpression of RACK1 causes centrosome amplification, especially in mammary gland epithelial cells, inducing overactivation of PLK1 followed by premature centriole disengagement and centriole re-duplication. Other proteins, including hypoxia-inducible factor α, von Hippel-Lindau protein, heat-shock protein 90, β-catenin, and glycogen synthase kinase-3β, interact with RACK1 and play roles in centrosome regulation. In this review, we focus on the roles and underlying molecular mechanisms of RACK1 in centrosome regulation mediated by its interaction with different proteins and the modulation of their functions.
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20
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Tools used to assay genomic instability in cancers and cancer meiomitosis. J Cell Commun Signal 2021; 16:159-177. [PMID: 34841477 DOI: 10.1007/s12079-021-00661-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 11/21/2021] [Indexed: 10/19/2022] Open
Abstract
Genomic instability is a defining characteristic of cancer and the analysis of DNA damage at the chromosome level is a crucial part of the study of carcinogenesis and genotoxicity. Chromosomal instability (CIN), the most common level of genomic instability in cancers, is defined as the rate of loss or gain of chromosomes through successive divisions. As such, DNA in cancer cells is highly unstable. However, the underlying mechanisms remain elusive. There is a debate as to whether instability succeeds transformation, or if it is a by-product of cancer, and therefore, studying potential molecular and cellular contributors of genomic instability is of high importance. Recent work has suggested an important role for ectopic expression of meiosis genes in driving genomic instability via a process called meiomitosis. Improving understanding of these mechanisms can contribute to the development of targeted therapies that exploit DNA damage and repair mechanisms. Here, we discuss a workflow of novel and established techniques used to assess chromosomal instability as well as the nature of genomic instability such as double strand breaks, micronuclei, and chromatin bridges. For each technique, we discuss their advantages and limitations in a lab setting. Lastly, we provide detailed protocols for the discussed techniques.
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21
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Ryniawec JM, Rogers GC. Centrosome instability: when good centrosomes go bad. Cell Mol Life Sci 2021; 78:6775-6795. [PMID: 34476544 PMCID: PMC8560572 DOI: 10.1007/s00018-021-03928-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 08/10/2021] [Accepted: 08/26/2021] [Indexed: 02/06/2023]
Abstract
The centrosome is a tiny cytoplasmic organelle that organizes and constructs massive molecular machines to coordinate diverse cellular processes. Due to its many roles during both interphase and mitosis, maintaining centrosome homeostasis is essential to normal health and development. Centrosome instability, divergence from normal centrosome number and structure, is a common pathognomonic cellular state tightly associated with cancers and other genetic diseases. As novel connections are investigated linking the centrosome to disease, it is critical to understand the breadth of centrosome functions to inspire discovery. In this review, we provide an introduction to normal centrosome function and highlight recent discoveries that link centrosome instability to specific disease states.
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Affiliation(s)
- John M Ryniawec
- University of Arizona Cancer Center, University of Arizona, 1515 N. Campbell Ave., Tucson, AZ, 85724, USA
| | - Gregory C Rogers
- University of Arizona Cancer Center, University of Arizona, 1515 N. Campbell Ave., Tucson, AZ, 85724, USA.
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22
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Shin B, Kim MS, Lee Y, Jung GI, Rhee K. Generation and Fates of Supernumerary Centrioles in Dividing Cells. Mol Cells 2021; 44:699-705. [PMID: 34711687 PMCID: PMC8560585 DOI: 10.14348/molcells.2021.0220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/25/2021] [Accepted: 09/30/2021] [Indexed: 11/27/2022] Open
Abstract
The centrosome is a subcellular organelle from which a cilium assembles. Since centrosomes function as spindle poles during mitosis, they have to be present as a pair in a cell. How the correct number of centrosomes is maintained in a cell has been a major issue in the fields of cell cycle and cancer biology. Centrioles, the core of centrosomes, assemble and segregate in close connection to the cell cycle. Abnormalities in centriole numbers are attributed to decoupling from cell cycle regulation. Interestingly, supernumerary centrioles are commonly observed in cancer cells. In this review, we discuss how supernumerary centrioles are generated in diverse cellular conditions. We also discuss how the cells cope with supernumerary centrioles during the cell cycle.
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Affiliation(s)
- Byungho Shin
- Department of Biological Sciences, Seoul National University, Seoul 08826, Korea
| | - Myung Se Kim
- Department of Biological Sciences, Seoul National University, Seoul 08826, Korea
| | - Yejoo Lee
- Department of Biological Sciences, Seoul National University, Seoul 08826, Korea
| | - Gee In Jung
- Department of Biological Sciences, Seoul National University, Seoul 08826, Korea
| | - Kunsoo Rhee
- Department of Biological Sciences, Seoul National University, Seoul 08826, Korea
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23
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Shoshani O, Bakker B, de Haan L, Tijhuis AE, Wang Y, Kim DH, Maldonado M, Demarest MA, Artates J, Zhengyu O, Mark A, Wardenaar R, Sasik R, Spierings DCJ, Vitre B, Fisch K, Foijer F, Cleveland DW. Transient genomic instability drives tumorigenesis through accelerated clonal evolution. Genes Dev 2021; 35:1093-1108. [PMID: 34266887 PMCID: PMC8336898 DOI: 10.1101/gad.348319.121] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 06/10/2021] [Indexed: 12/13/2022]
Abstract
In this study, Shoshani et al. tested the role of aneuploidy in tumor initiation and progression, and generated mice with random aneuploidies by transient induction of polo-like kinase 4 (Plk4), a master regulator of centrosome number. Their findings show how transient CIN generates cells with random aneuploidies from which ones that acquire a karyotype with specific chromosome gains are sufficient to drive cancer formation, and that distinct CIN mechanisms can lead to similar karyotypic cancer-causing outcomes. Abnormal numerical and structural chromosome content is frequently found in human cancer. To test the role of aneuploidy in tumor initiation and progression, we generated mice with random aneuploidies by transient induction of polo-like kinase 4 (Plk4), a master regulator of centrosome number. Short-term chromosome instability (CIN) from transient Plk4 induction resulted in formation of aggressive T-cell lymphomas in mice with heterozygous inactivation of one p53 allele and accelerated tumor development in the absence of p53. Transient CIN increased the frequency of lymphoma-initiating cells with a specific karyotype profile, including trisomy of chromosomes 4, 5, 14, and 15 occurring early in tumorigenesis. Tumor development in mice with chronic CIN induced by an independent mechanism (through inactivation of the spindle assembly checkpoint) gradually trended toward a similar karyotypic profile, as determined by single-cell whole-genome DNA sequencing. Overall, we show how transient CIN generates cells with random aneuploidies from which ones that acquire a karyotype with specific chromosome gains are sufficient to drive cancer formation, and that distinct CIN mechanisms can lead to similar karyotypic cancer-causing outcomes.
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Affiliation(s)
- Ofer Shoshani
- Ludwig Cancer Research, Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, California 92093, USA
| | - Bjorn Bakker
- European Research Institute for the Biology of Ageing (ERIBA), University of Groningen, University Medical Center Groningen, 9713 AV Groningen, The Netherlands
| | - Lauren de Haan
- Ludwig Cancer Research, Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, California 92093, USA.,European Research Institute for the Biology of Ageing (ERIBA), University of Groningen, University Medical Center Groningen, 9713 AV Groningen, The Netherlands
| | - Andréa E Tijhuis
- European Research Institute for the Biology of Ageing (ERIBA), University of Groningen, University Medical Center Groningen, 9713 AV Groningen, The Netherlands
| | - Yin Wang
- Ludwig Cancer Research, Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, California 92093, USA
| | - Dong Hyun Kim
- Ludwig Cancer Research, Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, California 92093, USA
| | - Marcus Maldonado
- Ludwig Cancer Research, Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, California 92093, USA
| | - Matthew A Demarest
- Ludwig Cancer Research, Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, California 92093, USA
| | - Jon Artates
- Ludwig Cancer Research, Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, California 92093, USA
| | - Ouyang Zhengyu
- Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, California 92093, USA
| | - Adam Mark
- Center for Computational Biology and Bioinformatics, Department of Medicine, University of California at San Diego, La Jolla, California 92093, USA
| | - René Wardenaar
- European Research Institute for the Biology of Ageing (ERIBA), University of Groningen, University Medical Center Groningen, 9713 AV Groningen, The Netherlands
| | - Roman Sasik
- Center for Computational Biology and Bioinformatics, Department of Medicine, University of California at San Diego, La Jolla, California 92093, USA
| | - Diana C J Spierings
- European Research Institute for the Biology of Ageing (ERIBA), University of Groningen, University Medical Center Groningen, 9713 AV Groningen, The Netherlands
| | - Benjamin Vitre
- Ludwig Cancer Research, Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, California 92093, USA
| | - Kathleen Fisch
- Center for Computational Biology and Bioinformatics, Department of Medicine, University of California at San Diego, La Jolla, California 92093, USA
| | - Floris Foijer
- European Research Institute for the Biology of Ageing (ERIBA), University of Groningen, University Medical Center Groningen, 9713 AV Groningen, The Netherlands
| | - Don W Cleveland
- Ludwig Cancer Research, Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, California 92093, USA
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24
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Badarudeen B, Anand U, Mukhopadhyay S, Manna TK. Ubiquitin signaling in the control of centriole duplication. FEBS J 2021; 289:4830-4849. [PMID: 34115927 DOI: 10.1111/febs.16069] [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: 01/28/2021] [Revised: 04/22/2021] [Accepted: 06/10/2021] [Indexed: 12/14/2022]
Abstract
The centrosome plays an essential role in maintaining genetic stability, ciliogenesis and cell polarisation. The core of the centrosome is made up of two centrioles that duplicate precisely once during every cell cycle to generate two centrosomes that are required for bipolar spindle assembly and chromosome segregation. Abundance of centriole proteins at optimal levels and their recruitment to the centrosome are tightly regulated in time and space in order to restrict aberrant duplication of centrioles, a phenomenon that is observed in many cancers. Recent advances have conclusively shown that dedicated ubiquitin ligase-dependent protein degradation machineries are involved in governing centriole duplication. These studies revealed intricate mechanistic insights into how the ubiquitin ligases target different centriole proteins. In certain cases, a specific ubiquitin ligase targets a number of substrate proteins that co-regulate centriole assembly, prompting the possibility that substrate-targeting occurs during formation of the sub-centriolar structures. There are also instances where a specific centriole duplication protein is targeted by several ubiquitin ligases at different stages of the cell cycle, suggesting synchronised actions. Recent evidence also indicated a direct association of E3 ubiquitin ligase with the centrioles, supporting the notion that substrate-targeting occurs in the organelle itself. In this review, we highlight these advances by underlining the mechanisms of how different ubiquitin ligase machineries control centriole duplication and discuss our views on their coordination.
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Affiliation(s)
- Binshad Badarudeen
- School of Biology, Indian Institute of Science Education and Research, Thiruvananthapuram, Vithura, India
| | - Ushma Anand
- School of Biology, Indian Institute of Science Education and Research, Thiruvananthapuram, Vithura, India
| | - Swarnendu Mukhopadhyay
- School of Biology, Indian Institute of Science Education and Research, Thiruvananthapuram, Vithura, India
| | - Tapas K Manna
- School of Biology, Indian Institute of Science Education and Research, Thiruvananthapuram, Vithura, India
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25
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Dias Louro MA, Bettencourt-Dias M, Bank C. Patterns of selection against centrosome amplification in human cell lines. PLoS Comput Biol 2021; 17:e1008765. [PMID: 33979341 PMCID: PMC8143425 DOI: 10.1371/journal.pcbi.1008765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/24/2021] [Accepted: 02/03/2021] [Indexed: 11/18/2022] Open
Abstract
The presence of extra centrioles, termed centrosome amplification, is a hallmark of cancer. The distribution of centriole numbers within a cancer cell population appears to be at an equilibrium maintained by centriole overproduction and selection, reminiscent of mutation-selection balance. It is unknown to date if the interaction between centriole overproduction and selection can quantitatively explain the intra- and inter-population heterogeneity in centriole numbers. Here, we define mutation-selection-like models and employ a model selection approach to infer patterns of centriole overproduction and selection in a diverse panel of human cell lines. Surprisingly, we infer strong and uniform selection against any number of extra centrioles in most cell lines. Finally we assess the accuracy and precision of our inference method and find that it increases non-linearly as a function of the number of sampled cells. We discuss the biological implications of our results and how our methodology can inform future experiments.
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Affiliation(s)
| | | | - Claudia Bank
- Instituto Gulbenkian de Ciência, Oeiras, Portugal
- Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
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26
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Centrosome dysfunction in human diseases. Semin Cell Dev Biol 2021; 110:113-122. [DOI: 10.1016/j.semcdb.2020.04.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 12/12/2022]
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27
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Funk LC, Wan J, Ryan SD, Kaur C, Sullivan R, Roopra A, Weaver BA. p53 Is Not Required for High CIN to Induce Tumor Suppression. Mol Cancer Res 2021; 19:112-123. [PMID: 32948674 PMCID: PMC7810023 DOI: 10.1158/1541-7786.mcr-20-0488] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/14/2020] [Accepted: 09/13/2020] [Indexed: 11/16/2022]
Abstract
Chromosomal instability (CIN) is a hallmark of cancer. While low levels of CIN can be tumor promoting, high levels of CIN cause cell death and tumor suppression. The widely used chemotherapeutic, paclitaxel (Taxol), exerts its anticancer effects by increasing CIN above a maximally tolerated threshold. One significant outstanding question is whether the p53 tumor suppressor is required for the cell death and tumor suppression caused by high CIN. Both p53 loss and reduction of the mitotic kinesin, centromere-associated protein-E, cause low CIN. Combining both genetic insults in the same cell leads to high CIN. Here, we test whether high CIN causes cell death and tumor suppression even in the absence p53. Despite a surprising sex-specific difference in tumor spectrum and latency in p53 heterozygous animals, these studies demonstrate that p53 is not required for high CIN to induce tumor suppression. Pharmacologic induction of high CIN results in equivalent levels of cell death due to loss of essential chromosomes in p53+/+ and p53-/- cells, further demonstrating that high CIN elicits cell death independently of p53 function. IMPLICATIONS: These results provide support for the efficacy of anticancer therapies that induce high CIN, even in tumors that lack functional p53.
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Affiliation(s)
- Laura C Funk
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Jun Wan
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Sean D Ryan
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Charanjeet Kaur
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Ruth Sullivan
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin
| | - Avtar Roopra
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
- Department of Neuroscience, University of Wisconsin-Madison, Madison, Wisconsin
| | - Beth A Weaver
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin.
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
- Department of Oncology/McArdle Laboratory for Cancer Research, University of Wisconsin-Madison, Madison, Wisconsin
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28
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Zhang Y, Tian J, Qu C, Peng Y, Lei J, Sun L, Zong B, Liu S. A look into the link between centrosome amplification and breast cancer. Biomed Pharmacother 2020; 132:110924. [PMID: 33128942 DOI: 10.1016/j.biopha.2020.110924] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/18/2020] [Accepted: 10/20/2020] [Indexed: 02/06/2023] Open
Abstract
Centrosome amplification (CA) is a common feature of human tumors, but it is not clear whether this is a cause or a consequence of cancer. The centrosome amplification observed in tumor cells may be explained by a series of events, such as failure of cell division, dysregulation of centrosome cycle checkpoints, and de novo centriole biogenesis disorder. The formation and progression of breast cancer are characterized by genomic abnormality. The centrosomes in breast cancer cells show characteristic structural aberrations, caused by centrosome amplification, which include: an increase in the number and volume of centrosomes, excessive increase of pericentriolar material (PCM), inappropriate phosphorylation of centrosomal molecular, and centrosome clustering formation induced by the dysregulation of important genes. The mechanism of intracellular centrosome amplification, the impact of which on breast cancer and the latest breast cancer target treatment options for centrosome amplification are exhaustively elaborated in this review.
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Affiliation(s)
- Yingzi Zhang
- Department of Endocrine Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China.
| | - Jiao Tian
- Department of Endocrine Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China.
| | - Chi Qu
- Department of Endocrine Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China.
| | - Yang Peng
- Department of Endocrine Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China.
| | - Jinwei Lei
- Department of Endocrine Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China.
| | - Lu Sun
- Department of Endocrine Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China.
| | - Beige Zong
- Department of Endocrine Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China.
| | - Shengchun Liu
- Department of Endocrine Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China.
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29
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Kazazian K, Haffani Y, Ng D, Lee CMM, Johnston W, Kim M, Xu R, Pacholzyk K, Zih FSW, Tan J, Smrke A, Pollett A, Wu HST, Swallow CJ. FAM46C/TENT5C functions as a tumor suppressor through inhibition of Plk4 activity. Commun Biol 2020; 3:448. [PMID: 32807875 PMCID: PMC7431843 DOI: 10.1038/s42003-020-01161-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 07/20/2020] [Indexed: 12/17/2022] Open
Abstract
Polo like kinase 4 (Plk4) is a tightly regulated serine threonine kinase that governs centriole duplication. Increased Plk4 expression, which is a feature of many common human cancers, causes centriole overduplication, mitotic irregularities, and chromosomal instability. Plk4 can also promote cancer invasion and metastasis through regulation of the actin cytoskeleton. Herein we demonstrate physical interaction of Plk4 with FAM46C/TENT5C, a conserved protein of unknown function until recently. FAM46C localizes to centrioles, inhibits Plk4 kinase activity, and suppresses Plk4-induced centriole duplication. Interference with Plk4 function by FAM46C was independent of the latter's nucleotidyl transferase activity. In addition, FAM46C restrained cancer cell invasion and suppressed MDA MB-435 cancer growth in a xenograft model, opposing the effect of Plk4. We demonstrate loss of FAM46C in patient-derived colorectal cancer tumor tissue that becomes more profound with advanced clinical stage. These results implicate FAM46C as a tumor suppressor that acts by inhibiting Plk4 activity.
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Affiliation(s)
- Karineh Kazazian
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, ON, M5G 1X5, Canada.,Department of Surgical Oncology, University of Toronto, Toronto, ON, M5G 2M9, Canada
| | - Yosr Haffani
- Laboratory of Physiopathology, Alimentation and Biomolecules LR17ES03, Higher Institute of Biotechnology, Sidi Thabet, University of Manouba, Ariana, 2020, Tunisia
| | - Deanna Ng
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, ON, M5G 1X5, Canada
| | - Chae Min Michelle Lee
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, ON, M5G 1X5, Canada
| | - Wendy Johnston
- Department of Radiation Oncology, University of Toronto, Toronto, ON, M5T 1P5, Canada
| | - Minji Kim
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, ON, M5G 1X5, Canada
| | - Roland Xu
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, ON, M5G 1X5, Canada
| | - Karina Pacholzyk
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, ON, M5G 1X5, Canada
| | - Francis Si-Wah Zih
- Department of Surgical Oncology, University of Toronto, Toronto, ON, M5G 2M9, Canada
| | - Julie Tan
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, ON, M5G 1X5, Canada
| | - Alannah Smrke
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, ON, M5G 1X5, Canada
| | - Aaron Pollett
- Department of Laboratory Medicine and Pathology, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Hannah Sun-Tsi Wu
- Department of Laboratory Medicine and Pathology, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Carol Jane Swallow
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, ON, M5G 1X5, Canada. .,Department of Surgical Oncology, University of Toronto, Toronto, ON, M5G 2M9, Canada.
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30
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Structural and Functional Analyses of the FAM46C/Plk4 Complex. Structure 2020; 28:910-921.e4. [PMID: 32433990 DOI: 10.1016/j.str.2020.04.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/23/2020] [Accepted: 04/28/2020] [Indexed: 02/07/2023]
Abstract
FAM46C, a non-canonical poly(A) polymerase, is frequently mutated in multiple myeloma. Loss of function of FAM46C promotes cell survival of multiple myeloma, suggesting a tumor-suppressive role. FAM46C is also essential for fastening sperm head and flagellum, indispensable for male fertility. The molecular mechanisms of these functions of FAM46C remain elusive. We report the crystal structure of FAM46C to provide the basis for its poly(A) polymerase activity and rationalize mutations associated with multiple myeloma. In addition, we found that FAM46C interacts directly with the serine/threonine kinase Plk4, the master regulator of centrosome duplication. We present the structure of FAM46C in complex with the Cryptic Polo-Box 1-2 domains of Plk4. Our structure-based mutational analyses show that the interaction with Plk4 recruits FAM46C to centrosomes. Our data suggest that Plk4-mediated localization of FAM46C enables its regulation of centrosome structure and functions, which may underlie the roles for FAM46C in cell proliferation and sperm development.
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31
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Vitre B, Taulet N, Guesdon A, Douanier A, Dosdane A, Cisneros M, Maurin J, Hettinger S, Anguille C, Taschner M, Lorentzen E, Delaval B. IFT proteins interact with HSET to promote supernumerary centrosome clustering in mitosis. EMBO Rep 2020; 21:e49234. [PMID: 32270908 PMCID: PMC7271317 DOI: 10.15252/embr.201949234] [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: 09/06/2019] [Revised: 02/25/2020] [Accepted: 03/12/2020] [Indexed: 11/10/2022] Open
Abstract
Centrosome amplification is a hallmark of cancer, and centrosome clustering is essential for cancer cell survival. The mitotic kinesin HSET is an essential contributor to this process. Recent studies have highlighted novel functions for intraflagellar transport (IFT) proteins in regulating motors and mitotic processes. Here, using siRNA knock‐down of various IFT proteins or AID‐inducible degradation of endogenous IFT88 in combination with small‐molecule inhibition of HSET, we show that IFT proteins together with HSET are required for efficient centrosome clustering. We identify a direct interaction between the kinesin HSET and IFT proteins, and we define how IFT proteins contribute to clustering dynamics during mitosis using high‐resolution live imaging of centrosomes. Finally, we demonstrate the requirement of IFT88 for efficient centrosome clustering in a variety of cancer cell lines naturally harboring supernumerary centrosomes and its importance for cancer cell proliferation. Overall, our data unravel a novel role for the IFT machinery in centrosome clustering during mitosis in cells harboring supernumerary centrosomes.
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Affiliation(s)
- Benjamin Vitre
- CRBM, University of Montpellier, CNRS, Montpellier, France.,Centrosome, Cilia and Pathologies Lab, Montpellier, France
| | - Nicolas Taulet
- CRBM, University of Montpellier, CNRS, Montpellier, France.,Centrosome, Cilia and Pathologies Lab, Montpellier, France
| | - Audrey Guesdon
- CRBM, University of Montpellier, CNRS, Montpellier, France.,Centrosome, Cilia and Pathologies Lab, Montpellier, France
| | - Audrey Douanier
- CRBM, University of Montpellier, CNRS, Montpellier, France.,Centrosome, Cilia and Pathologies Lab, Montpellier, France
| | - Aurelie Dosdane
- CRBM, University of Montpellier, CNRS, Montpellier, France.,Centrosome, Cilia and Pathologies Lab, Montpellier, France
| | - Melanie Cisneros
- CRBM, University of Montpellier, CNRS, Montpellier, France.,Centrosome, Cilia and Pathologies Lab, Montpellier, France
| | - Justine Maurin
- CRBM, University of Montpellier, CNRS, Montpellier, France.,Centrosome, Cilia and Pathologies Lab, Montpellier, France
| | - Sabrina Hettinger
- CRBM, University of Montpellier, CNRS, Montpellier, France.,Centrosome, Cilia and Pathologies Lab, Montpellier, France
| | - Christelle Anguille
- CRBM, University of Montpellier, CNRS, Montpellier, France.,Centrosome, Cilia and Pathologies Lab, Montpellier, France
| | - Michael Taschner
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Esben Lorentzen
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Benedicte Delaval
- CRBM, University of Montpellier, CNRS, Montpellier, France.,Centrosome, Cilia and Pathologies Lab, Montpellier, France
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32
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Galon J, Bruni D. Tumor Immunology and Tumor Evolution: Intertwined Histories. Immunity 2020; 52:55-81. [PMID: 31940273 DOI: 10.1016/j.immuni.2019.12.018] [Citation(s) in RCA: 325] [Impact Index Per Article: 81.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 07/01/2019] [Accepted: 12/20/2019] [Indexed: 12/11/2022]
Abstract
Cancer is a complex disease whose outcome depends largely on the cross-talk between the tumor and its microenvironment. Here, we review the evolution of the field of tumor immunology and the advances, in lockstep, of our understanding of cancer as a disease. We discuss the involvement of different immune cells at distinct stages of tumor progression and how immune contexture determinants shaping tumor development are being exploited therapeutically. Current clinical stratification schemes focus on the tumor histopathology and the molecular characteristics of the tumor cell. We argue for the importance of revising these stratification systems to include immune parameters so as to address the immediate need for improved prognostic and/or predictive information to guide clinical decisions.
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Affiliation(s)
- Jérôme Galon
- INSERM, Laboratory of Integrative Cancer Immunology, Equipe Labellisée Ligue Contre le Cancer, Sorbonne Université, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Université de Paris; Centre de Recherche des Cordeliers, F-75006 Paris, France.
| | - Daniela Bruni
- INSERM, Laboratory of Integrative Cancer Immunology, Equipe Labellisée Ligue Contre le Cancer, Sorbonne Université, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Université de Paris; Centre de Recherche des Cordeliers, F-75006 Paris, France
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33
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Wang M, Nagle RB, Knudsen BS, Cress AE, Rogers GC. Centrosome loss results in an unstable genome and malignant prostate tumors. Oncogene 2019; 39:399-413. [PMID: 31477840 DOI: 10.1038/s41388-019-0995-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 08/06/2019] [Accepted: 08/15/2019] [Indexed: 12/14/2022]
Abstract
Localized, nonindolent prostate cancer (PCa) is characterized by large-scale genomic rearrangements, aneuploidy, chromothripsis, and other forms of chromosomal instability (CIN), yet how this occurs remains unclear. A well-established mechanism of CIN is the overproduction of centrosomes, which promotes tumorigenesis in various mouse models. Therefore, we developed a single-cell assay for quantifying centrosomes in human prostate tissue. Surprisingly, centrosome loss-which has not been described in human cancer-was associated with PCa progression. By chemically or genetically inducing centrosome loss in nontumorigenic prostate epithelial cells, mitotic errors ensued, producing aneuploid, and multinucleated cells. Strikingly, transient or chronic centrosome loss transformed prostate epithelial cells, which produced highly proliferative and poorly differentiated malignant tumors in mice. Our findings suggest that centrosome loss could create a cellular crisis with oncogenic potential in prostate epithelial cells.
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Affiliation(s)
- Mengdie Wang
- Department of Cellular and Molecular Medicine, University of Arizona Cancer Center, University of Arizona, Tucson, AZ, 85724, USA
| | - Raymond B Nagle
- Department of Pathology, University of Arizona Cancer Center, University of Arizona, Tucson, AZ, 85724, USA
| | - Beatrice S Knudsen
- Department of Pathology and Laboratory Medicine, Cedars Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Anne E Cress
- Department of Cellular and Molecular Medicine, University of Arizona Cancer Center, University of Arizona, Tucson, AZ, 85724, USA.
| | - Gregory C Rogers
- Department of Cellular and Molecular Medicine, University of Arizona Cancer Center, University of Arizona, Tucson, AZ, 85724, USA.
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34
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Cep131 overexpression promotes centrosome amplification and colon cancer progression by regulating Plk4 stability. Cell Death Dis 2019; 10:570. [PMID: 31358734 PMCID: PMC6662699 DOI: 10.1038/s41419-019-1778-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/18/2019] [Accepted: 04/23/2019] [Indexed: 12/22/2022]
Abstract
The initiation of centrosome duplication is regulated by the Plk4/STIL/hsSAS-6 axis; however, the involvement of other centrosomal proteins in this process remains unclear. In this study, we demonstrate that Cep131 physically interacts with Plk4 following phosphorylation of residues S21 and T205. Localizing at the centriole, phosphorylated Cep131 has an increased capability to interact with STIL, leading to further activation and stabilization of Plk4 for initiating centrosome duplication. Moreover, we found that Cep131 overexpression resulted in centrosome amplification by excessive recruitment of STIL to the centriole and subsequent stabilization of Plk4, contributing to centrosome amplification. The xenograft mouse model also showed that both centrosome amplification and colon cancer growth were significantly increased by Cep131 overexpression. These findings demonstrate that Cep131 is a novel substrate of Plk4, and that phosphorylation or dysregulated Cep131 overexpression promotes Plk4 stabilization and therefore centrosome amplification, establishing a perspective in understanding a relationship between centrosome amplification and cancer development.
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35
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Tijhuis AE, Johnson SC, McClelland SE. The emerging links between chromosomal instability (CIN), metastasis, inflammation and tumour immunity. Mol Cytogenet 2019; 12:17. [PMID: 31114634 PMCID: PMC6518824 DOI: 10.1186/s13039-019-0429-1] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 04/15/2019] [Indexed: 02/06/2023] Open
Abstract
Many cancers possess an incorrect number of chromosomes, a state described as aneuploidy. Aneuploidy is often caused by Chromosomal Instability (CIN), a process of continuous chromosome mis-segregation. CIN is believed to endow tumours with enhanced evolutionary capabilities due to increased intratumour heterogeneity, and facilitating adaptive resistance to therapies. Recently, however, additional consequences and associations with CIN have been revealed, prompting the need to understand this universal hallmark of cancer in a multifaceted context. This review is focused on the investigation of possible links between CIN, metastasis and the host immune system in cancer development and treatment. We specifically focus on these links since most cancer deaths are due to the consequences of metastasis, and immunotherapy is a rapidly expanding novel avenue of cancer therapy.
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Affiliation(s)
- Andréa E. Tijhuis
- Barts Cancer Institute, Queen Mary University of London, EC1M 6BQ, London, UK
| | - Sarah C. Johnson
- Barts Cancer Institute, Queen Mary University of London, EC1M 6BQ, London, UK
| | - Sarah E. McClelland
- Barts Cancer Institute, Queen Mary University of London, EC1M 6BQ, London, UK
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36
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LoMastro GM, Holland AJ. The Emerging Link between Centrosome Aberrations and Metastasis. Dev Cell 2019; 49:325-331. [PMID: 31063752 PMCID: PMC6506172 DOI: 10.1016/j.devcel.2019.04.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 03/14/2019] [Accepted: 03/31/2019] [Indexed: 12/15/2022]
Abstract
Centrosome aberrations are commonly observed in human tumors and correlate with tumor aggressiveness and poor prognosis. Extra centrosomes drive mitotic errors that have been implicated in promoting tumorigenesis in mice. However, centrosome aberrations can also disrupt tissue architecture and confer invasive properties that may facilitate the dissemination of metastatic cells. Recent work has shown that centrosome defects facilitate invasion through cell-autonomous and non-cell-autonomous mechanisms, suggesting cancer cells can benefit from centrosome aberrations present in a subset of the tumor cell population. Here, we discuss how centrosome defects promote invasive behaviors that may contribute to initial steps in the metastatic cascade.
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Affiliation(s)
- Gina M LoMastro
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Andrew J Holland
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
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37
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Abstract
Centrosome amplification is a feature of multiple tumour types and has been postulated to contribute to both tumour initiation and tumour progression. This chapter focuses on the mechanisms by which an increase in centrosome number might lead to an increase or decrease in tumour progression and the role of proteins that regulate centrosome number in driving tumorigenesis.
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Affiliation(s)
- Arunabha Bose
- KS215, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai, Maharashtra, India
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Sorab N Dalal
- KS215, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai, Maharashtra, India.
- Homi Bhabha National Institute, Mumbai, Maharashtra, India.
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Abstract
Whole-genome and centrosome duplication as a consequence of cytokinesis failure can drive tumorigenesis in experimental model systems. However, whether cytokinesis failure is in fact an important cause of human cancers has remained unclear. In this Review, we summarize evidence that whole-genome-doubling events are frequently observed in human cancers and discuss the contribution that cytokinesis defects can make to tumorigenesis. We provide an overview of the potential causes of cytokinesis failure and discuss how tetraploid cells that are generated through cytokinesis defects are used in cancer as a transitory state on the route to aneuploidy. Finally, we discuss how cytokinesis defects can facilitate genetic diversification within the tumour to promote cancer development and could constitute the path of least resistance in tumour evolution.
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Affiliation(s)
- Susanne M A Lens
- Oncode Institute, Utrecht, Netherlands.
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.
| | - René H Medema
- Oncode Institute, Utrecht, Netherlands.
- Division of Cell Biology and Cancer Genomics Center, The Netherlands Cancer Institute, Amsterdam, Netherlands.
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39
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Thu KL, Soria-Bretones I, Mak TW, Cescon DW. Targeting the cell cycle in breast cancer: towards the next phase. Cell Cycle 2018; 17:1871-1885. [PMID: 30078354 DOI: 10.1080/15384101.2018.1502567] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Deregulation of the cell cycle is a hallmark of cancer that enables limitless cell division. To support this malignant phenotype, cells acquire molecular alterations that abrogate or bypass control mechanisms in signaling pathways and cellular checkpoints that normally function to prevent genomic instability and uncontrolled cell proliferation. Consequently, therapeutic targeting of the cell cycle has long been viewed as a promising anti-cancer strategy. Until recently, attempts to target the cell cycle for cancer therapy using selective inhibitors have proven unsuccessful due to intolerable toxicities and a lack of target specificity. However, improvements in our understanding of malignant cell-specific vulnerabilities has revealed a therapeutic window for preferential targeting of the cell cycle in cancer cells, and has led to the development of agents now in the clinic. In this review, we discuss the latest generation of cell cycle targeting anti-cancer agents for breast cancer, including approved CDK4/6 inhibitors, and investigational TTK and PLK4 inhibitors that are currently in clinical trials. In recognition of the emerging population of ER+ breast cancers with acquired resistance to CDK4/6 inhibitors we suggest new therapeutic avenues to treat these patients. We also offer our perspective on the direction of future research to address the problem of drug resistance, and discuss the mechanistic insights required for the successful implementation of these strategies.
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Affiliation(s)
- K L Thu
- a Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre , University Health Network , Toronto , Canada
| | - I Soria-Bretones
- a Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre , University Health Network , Toronto , Canada
| | - T W Mak
- a Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre , University Health Network , Toronto , Canada.,b Department of Medical Biophysics , University Health Network , Toronto , Canada
| | - D W Cescon
- a Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre , University Health Network , Toronto , Canada.,c Department of Medicine , University of Toronto , Toronto , Canada
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40
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Renzova T, Bohaciakova D, Esner M, Pospisilova V, Barta T, Hampl A, Cajanek L. Inactivation of PLK4-STIL Module Prevents Self-Renewal and Triggers p53-Dependent Differentiation in Human Pluripotent Stem Cells. Stem Cell Reports 2018; 11:959-972. [PMID: 30197118 PMCID: PMC6178195 DOI: 10.1016/j.stemcr.2018.08.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/08/2018] [Accepted: 08/08/2018] [Indexed: 12/25/2022] Open
Abstract
Centrioles account for centrosomes and cilia formation. Recently, a link between centrosomal components and human developmental disorders has been established. However, the exact mechanisms how centrosome abnormalities influence embryogenesis and cell fate are not understood. PLK4-STIL module represents a key element of centrosome duplication cycle. We analyzed consequences of inactivation of the module for early events of embryogenesis in human embryonic stem cells (hESCs) and human induced pluripotent stem cells (hiPSCs). We demonstrate that blocking of PLK4 or STIL functions leads to centrosome loss followed by both p53-dependent and -independent defects, including prolonged cell divisions, upregulation of p53, chromosome instability, and, importantly, reduction of pluripotency markers and induction of differentiation. We show that the observed loss of key stem cells properties is connected to alterations in mitotic timing and protein turnover. In sum, our data define a link between centrosome, its regulators, and the control of pluripotency and differentiation in PSCs. Blocking of PLK4-STIL module in hESCs/hiPSCs leads to: Centrosome loss, prolonged and error-prone mitosis; p53-dependent differentiation; Reduction of pluripotency linked to altered protein turnover
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Affiliation(s)
- Tereza Renzova
- Department of Histology and Embryology, Masaryk University, Faculty of Medicine, Brno 625 00, Czech Republic
| | - Dasa Bohaciakova
- Department of Histology and Embryology, Masaryk University, Faculty of Medicine, Brno 625 00, Czech Republic
| | - Milan Esner
- Department of Histology and Embryology, Masaryk University, Faculty of Medicine, Brno 625 00, Czech Republic; Cellular Imaging Core Facility, Central European Institute of Technology (CEITEC), Masaryk University, Brno 625 00, Czech Republic
| | - Veronika Pospisilova
- Department of Histology and Embryology, Masaryk University, Faculty of Medicine, Brno 625 00, Czech Republic
| | - Tomas Barta
- Department of Histology and Embryology, Masaryk University, Faculty of Medicine, Brno 625 00, Czech Republic
| | - Ales Hampl
- Department of Histology and Embryology, Masaryk University, Faculty of Medicine, Brno 625 00, Czech Republic; International Clinical Research Center, St. Anne's University Hospital, Brno 656 91, Czech Republic
| | - Lukas Cajanek
- Department of Histology and Embryology, Masaryk University, Faculty of Medicine, Brno 625 00, Czech Republic.
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41
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Jusino S, Fernández-Padín FM, Saavedra HI. Centrosome aberrations and chromosome instability contribute to tumorigenesis and intra-tumor heterogeneity. ACTA ACUST UNITED AC 2018; 4. [PMID: 30381801 PMCID: PMC6205736 DOI: 10.20517/2394-4722.2018.24] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Centrosomes serve as the major microtubule organizing centers in cells and thereby contribute to cell shape, polarity, and motility. Also, centrosomes ensure equal chromosome segregation during mitosis. Centrosome aberrations arise when the centrosome cycle is deregulated, or as a result of cytokinesis failure. A long-standing postulate is that centrosome aberrations are involved in the initiation and progression of cancer. However, this notion has been a subject of controversy because until recently the relationship has been correlative. Recently, it was shown that numerical or structural centrosome aberrations can initiate tumors in certain tissues in mice, as well as invasion. Particularly, we will focus on centrosome amplification and chromosome instability as drivers of intra-tumor heterogeneity and their consequences in cancer. We will also discuss briefly the controversies surrounding this theory to highlight the fact that the role of both centrosome amplification and chromosome instability in cancer is highly context-dependent. Further, we will discuss single-cell sequencing as a novel technique to understand intra-tumor heterogeneity and some therapeutic approaches to target chromosome instability.
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Affiliation(s)
- Shirley Jusino
- Basic Sciences Department, Division of Pharmacology and Toxicology, Ponce Health Sciences University, Ponce Research Institute, Ponce, PR 00732, USA
| | - Fabiola M Fernández-Padín
- Basic Sciences Department, Division of Pharmacology and Toxicology, Ponce Health Sciences University, Ponce Research Institute, Ponce, PR 00732, USA
| | - Harold I Saavedra
- Basic Sciences Department, Division of Pharmacology and Toxicology, Ponce Health Sciences University, Ponce Research Institute, Ponce, PR 00732, USA
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Abstract
This review by Levine and Holland reviews the sources of mitotic errors in human tumors and their effect on cell fitness and transformation. They discuss new findings that suggest that chromosome missegregation can produce a proinflammatory environment and impact tumor responsiveness to immunotherapy and survey the vulnerabilities exposed by cell division errors and how they can be exploited therapeutically. Mitosis is a delicate event that must be executed with high fidelity to ensure genomic stability. Recent work has provided insight into how mitotic errors shape cancer genomes by driving both numerical and structural alterations in chromosomes that contribute to tumor initiation and progression. Here, we review the sources of mitotic errors in human tumors and their effect on cell fitness and transformation. We discuss new findings that suggest that chromosome missegregation can produce a proinflammatory environment and impact tumor responsiveness to immunotherapy. Finally, we survey the vulnerabilities exposed by cell division errors and how they can be exploited therapeutically.
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Affiliation(s)
- Michelle S Levine
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
| | - Andrew J Holland
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
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43
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Dionne LK, Shim K, Hoshi M, Cheng T, Wang J, Marthiens V, Knoten A, Basto R, Jain S, Mahjoub MR. Centrosome amplification disrupts renal development and causes cystogenesis. J Cell Biol 2018; 217:2485-2501. [PMID: 29895697 PMCID: PMC6028550 DOI: 10.1083/jcb.201710019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 10/23/2017] [Accepted: 05/09/2018] [Indexed: 01/07/2023] Open
Abstract
Supernumerary centrosomes are commonly observed in cystic kidneys, but whether they are a cause or consequence of cystogenesis is unknown. Dionne et al. demonstrate that centrosome amplification disrupts renal development and is sufficient to induce cystogenesis in vivo. Centrosome number is tightly controlled to ensure proper ciliogenesis, mitotic spindle assembly, and cellular homeostasis. Centrosome amplification (the formation of excess centrosomes) has been noted in renal cells of patients and animal models of various types of cystic kidney disease. Whether this defect plays a causal role in cystogenesis remains unknown. Here, we investigate the consequences of centrosome amplification during kidney development, homeostasis, and after injury. Increasing centrosome number in vivo perturbed proliferation and differentiation of renal progenitors, resulting in defective branching morphogenesis and renal hypoplasia. Centrosome amplification disrupted mitotic spindle morphology, ciliary assembly, and signaling pathways essential for the function of renal progenitors, highlighting the mechanisms underlying the developmental defects. Importantly, centrosome amplification was sufficient to induce rapid cystogenesis shortly after birth. Finally, we discovered that centrosome amplification sensitized kidneys in adult mice, causing cystogenesis after ischemic renal injury. Our study defines a new mechanism underlying the pathogenesis of renal cystogenesis, and identifies a potentially new cellular target for therapy.
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Affiliation(s)
- Lai Kuan Dionne
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Kyuhwan Shim
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Masato Hoshi
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Tao Cheng
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Jinzhi Wang
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | | | - Amanda Knoten
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Renata Basto
- Centre National de la Recherche Scientifique-Institute Curie, Paris, France
| | - Sanjay Jain
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO.,Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO
| | - Moe R Mahjoub
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO .,Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO
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Nigg EA, Holland AJ. Once and only once: mechanisms of centriole duplication and their deregulation in disease. Nat Rev Mol Cell Biol 2018; 19:297-312. [PMID: 29363672 PMCID: PMC5969912 DOI: 10.1038/nrm.2017.127] [Citation(s) in RCA: 301] [Impact Index Per Article: 50.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Centrioles are conserved microtubule-based organelles that form the core of the centrosome and act as templates for the formation of cilia and flagella. Centrioles have important roles in most microtubule-related processes, including motility, cell division and cell signalling. To coordinate these diverse cellular processes, centriole number must be tightly controlled. In cycling cells, one new centriole is formed next to each pre-existing centriole in every cell cycle. Advances in imaging, proteomics, structural biology and genome editing have revealed new insights into centriole biogenesis, how centriole numbers are controlled and how alterations in these processes contribute to diseases such as cancer and neurodevelopmental disorders. Moreover, recent work has uncovered the existence of surveillance pathways that limit the proliferation of cells with numerical centriole aberrations. Owing to this progress, we now have a better understanding of the molecular mechanisms governing centriole biogenesis, opening up new possibilities for targeting these pathways in the context of human disease.
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Affiliation(s)
- Erich A. Nigg
- Biozentrum, University of Basel, Klingelbergstrasse 50/70, CH-4056 Basel, Switzerland
| | - Andrew J. Holland
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
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45
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Guo X, Ni J, Dai X, Zhou T, Yang G, Xue J, Wang X. Biphasic regulation of spindle assembly checkpoint by low and high concentrations of resveratrol leads to the opposite effect on chromosomal instability. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 825:19-30. [PMID: 29307372 DOI: 10.1016/j.mrgentox.2017.11.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/02/2017] [Accepted: 11/07/2017] [Indexed: 01/14/2023]
Abstract
Resveratrol (RSV) is a naturally occurring polyphenolic phytoalexin possessing numerous health-promoting effects. Chromosomal instability (CIN), usually results from defective spindle assembly checkpoint (SAC), is a major contributor to many diseases. While it's recently recognized that RSV exhibits a nonlinear dose response for disease prevention, whether it's the case for its role in CIN remains unknown. Here, we investigated the potential of a broad range of RSV concentrations (0.01-100μM) on CIN and the underlying mechanisms in human normal colon epithelial NCM460 cells. CIN was measured by cytokinesis-block micronucleus assay; mitotic fidelity was determined by aberrant mitosis analysis; SAC activity was assessed by nocodazole-challenge assay, and the expression of SAC genes was examined by RT-qPCR. We found that 0.1μM RSV significantly reduced CIN (P<0.01), while 100μM RSV significantly induced it (P<0.05). Mitotic infidelity was significantly prevented by 0.1μM RSV but promoted by 100μM RSV (P<0.05 for both). Moreover, the function of SAC was sustained and impaired by 0.1μM and 100μM RSV, respectively. Several SAC genes, including Aurora-B, Aurora-C, Plk-1 and CENP-E, were significantly up-regulated and down-regulated by 0.1μM and 100μM RSV, respectively (P<0.05). In conclusion, RSV exhibited a biphasic dose-dependent effect on CIN that was exerted via the regulation of mitotic fidelity through the SAC network. The health implications of these findings were summarized.
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Affiliation(s)
- Xihan Guo
- School of Life Sciences, The Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Yunnan Normal University, Kunming, Yunnan, 650500, China; School of Life Sciences, Yunnan University, Kunming, Yunnan, 650091, China
| | - Juan Ni
- School of Life Sciences, The Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Yunnan Normal University, Kunming, Yunnan, 650500, China
| | - Xueqin Dai
- School of Life Sciences, The Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Yunnan Normal University, Kunming, Yunnan, 650500, China
| | - Tao Zhou
- School of Life Sciences, The Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Yunnan Normal University, Kunming, Yunnan, 650500, China
| | - Guofang Yang
- China Gene Health Management Group, Ltd., Shanghai, 200433, China
| | - Jinglun Xue
- China Gene Health Management Group, Ltd., Shanghai, 200433, China
| | - Xu Wang
- School of Life Sciences, The Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Yunnan Normal University, Kunming, Yunnan, 650500, China; School of Life Sciences, Yunnan University, Kunming, Yunnan, 650091, China.
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46
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Loncarek J, Bettencourt-Dias M. Building the right centriole for each cell type. J Cell Biol 2017; 217:823-835. [PMID: 29284667 PMCID: PMC5839779 DOI: 10.1083/jcb.201704093] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 09/14/2017] [Accepted: 11/27/2017] [Indexed: 12/22/2022] Open
Abstract
Loncarek and Bettencourt-Dias review molecular mechanisms of centriole biogenesis amongst different organisms and cell types. The centriole is a multifunctional structure that organizes centrosomes and cilia and is important for cell signaling, cell cycle progression, polarity, and motility. Defects in centriole number and structure are associated with human diseases including cancer and ciliopathies. Discovery of the centriole dates back to the 19th century. However, recent advances in genetic and biochemical tools, development of high-resolution microscopy, and identification of centriole components have accelerated our understanding of its assembly, function, evolution, and its role in human disease. The centriole is an evolutionarily conserved structure built from highly conserved proteins and is present in all branches of the eukaryotic tree of life. However, centriole number, size, and organization varies among different organisms and even cell types within a single organism, reflecting its cell type–specialized functions. In this review, we provide an overview of our current understanding of centriole biogenesis and how variations around the same theme generate alternatives for centriole formation and function.
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Affiliation(s)
- Jadranka Loncarek
- Cell Cycle Regulation Lab, Gulbenkian Institute of Science, Oeiras, Portugal
| | - Mónica Bettencourt-Dias
- Laboratory of Protein Dynamics and Signaling, National Institutes of Health/Center for Cancer Research/National Cancer Institute-Frederick, Frederick, MD
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47
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Maniswami RR, Prashanth S, Karanth AV, Koushik S, Govindaraj H, Mullangi R, Rajagopal S, Jegatheesan SK. PLK4: a link between centriole biogenesis and cancer. Expert Opin Ther Targets 2017; 22:59-73. [PMID: 29171762 DOI: 10.1080/14728222.2018.1410140] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Polo like kinase (PLK) is known to play a pivotal role in various cell cycle processes to perpetuate proper division and growth of the cells. Polo like kinase-4 (PLK4) is one such kinase that appears in low abundance and plays a well-characterized role in centriole duplication. PLK4 deregulation (i.e. both overexpression and depletion of PLK4), leads to altered mitotic fidelity and thereby triggers tumorigenesis. Hence, over the last few years PLK4 has emerged as a potential therapeutic target for the treatment of various advanced cancers. Areas covered: In this review, we discuss the basic structure, expression, localization and functions of PLK4 along with its regulation by various proteins. We also discuss the role of altered PLK4 activity in the onset of cancer and the current pre-clinical and clinical inhibitors to regulate PLK4. Expert opinion: PLK4 mediated centriole duplication has a crucial role in maintaining mitotic correctness in normal cells, while its deregulation has a greater impact on genesis of cancer. Henceforth, a deep knowledge of the PLK4 levels, its role and interactions with various proteins in cancer is required to design effective inhibitors for clinical use.
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Affiliation(s)
| | | | | | - Sindhu Koushik
- a Jubilant Biosys Ltd, Bioinformatics , Bangalore , India
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48
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Connell M, Chen H, Jiang J, Kuan CW, Fotovati A, Chu TLH, He Z, Lengyell TC, Li H, Kroll T, Li AM, Goldowitz D, Frappart L, Ploubidou A, Patel MS, Pilarski LM, Simpson EM, Lange PF, Allan DW, Maxwell CA. HMMR acts in the PLK1-dependent spindle positioning pathway and supports neural development. eLife 2017; 6:e28672. [PMID: 28994651 PMCID: PMC5681225 DOI: 10.7554/elife.28672] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 10/05/2017] [Indexed: 01/08/2023] Open
Abstract
Oriented cell division is one mechanism progenitor cells use during development and to maintain tissue homeostasis. Common to most cell types is the asymmetric establishment and regulation of cortical NuMA-dynein complexes that position the mitotic spindle. Here, we discover that HMMR acts at centrosomes in a PLK1-dependent pathway that locates active Ran and modulates the cortical localization of NuMA-dynein complexes to correct mispositioned spindles. This pathway was discovered through the creation and analysis of Hmmr-knockout mice, which suffer neonatal lethality with defective neural development and pleiotropic phenotypes in multiple tissues. HMMR over-expression in immortalized cancer cells induces phenotypes consistent with an increase in active Ran including defects in spindle orientation. These data identify an essential role for HMMR in the PLK1-dependent regulatory pathway that orients progenitor cell division and supports neural development.
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Affiliation(s)
- Marisa Connell
- Department of PaediatricsUniversity of British ColumbiaVancouverCanada
| | - Helen Chen
- Department of PaediatricsUniversity of British ColumbiaVancouverCanada
| | - Jihong Jiang
- Department of PaediatricsUniversity of British ColumbiaVancouverCanada
| | - Chia-Wei Kuan
- Department of Pathology and Laboratory MedicineUniversity of British ColumbiaVancouverCanada
| | - Abbas Fotovati
- Department of PaediatricsUniversity of British ColumbiaVancouverCanada
| | - Tony LH Chu
- Department of PaediatricsUniversity of British ColumbiaVancouverCanada
| | - Zhengcheng He
- Department of PaediatricsUniversity of British ColumbiaVancouverCanada
| | - Tess C Lengyell
- Centre for Molecular Medicine and TherapeuticsUniversity of British ColumbiaVancouverCanada
| | - Huaibiao Li
- Leibniz Institute on Aging—Fritz Lipmann InstituteBeutenbergstrasseGermany
| | - Torsten Kroll
- Leibniz Institute on Aging—Fritz Lipmann InstituteBeutenbergstrasseGermany
| | - Amanda M Li
- Department of PaediatricsUniversity of British ColumbiaVancouverCanada
| | - Daniel Goldowitz
- Centre for Molecular Medicine and TherapeuticsUniversity of British ColumbiaVancouverCanada
- Department of Medical GeneticsUniversity of British ColumbiaVancouverCanada
| | - Lucien Frappart
- Leibniz Institute on Aging—Fritz Lipmann InstituteBeutenbergstrasseGermany
| | - Aspasia Ploubidou
- Leibniz Institute on Aging—Fritz Lipmann InstituteBeutenbergstrasseGermany
| | - Millan S Patel
- Department of Medical GeneticsUniversity of British ColumbiaVancouverCanada
| | - Linda M Pilarski
- Cross Cancer Institute, Department of OncologyUniversity of AlbertaEdmontonCanada
| | - Elizabeth M Simpson
- Centre for Molecular Medicine and TherapeuticsUniversity of British ColumbiaVancouverCanada
- Department of Medical GeneticsUniversity of British ColumbiaVancouverCanada
| | - Philipp F Lange
- Department of Pathology and Laboratory MedicineUniversity of British ColumbiaVancouverCanada
- Michael Cuccione Childhood Cancer Research ProgramBC Children’s HospitalVancouverCanada
| | - Douglas W Allan
- Department of Cellular and Physiological SciencesLife Sciences Centre, University of British ColumbiaVancouverCanada
| | - Christopher A Maxwell
- Department of PaediatricsUniversity of British ColumbiaVancouverCanada
- Michael Cuccione Childhood Cancer Research ProgramBC Children’s HospitalVancouverCanada
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49
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Ogden A, Rida PCG, Aneja R. Centrosome amplification: a suspect in breast cancer and racial disparities. Endocr Relat Cancer 2017; 24:T47-T64. [PMID: 28515047 PMCID: PMC5837860 DOI: 10.1530/erc-17-0072] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 05/17/2017] [Indexed: 12/31/2022]
Abstract
The multifaceted involvement of centrosome amplification (CA) in tumorigenesis is coming into focus following years of meticulous experimentation, which have elucidated the powerful abilities of CA to promote cellular invasion, disrupt stem cell division, drive chromosomal instability (CIN) and perturb tissue architecture, activities that can accelerate tumor progression. Integration of the extant in vitro, in vivo and clinical data suggests that in some tissues CA may be a tumor-initiating event, in others a consequential 'hit' in multistep tumorigenesis, and in some others, non-tumorigenic. However, in vivo data are limited and primarily focus on PLK4 (which has CA-independent mechanisms by which it promotes aggressive cellular phenotypes). In vitro breast cancer models suggest that CA can promote tumorigenesis in breast cancer cells in the setting of p53 loss or mutation, which can both trigger CA and promote cellular tolerance to its tendency to slow proliferation and induce aneuploidy. It is thus our perspective that CA is likely an early hit in multistep breast tumorigenesis that may sometimes be lost to preserve aggressive karyotypes acquired through centrosome clustering-mediated CIN, both numerical and structural. We also envision that the robust link between p53 and CA may underlie, to a considerable degree, racial health disparity in breast cancer outcomes. This question is clinically significant because, if it is true, then analysis of centrosomal profiles and administration of centrosome declustering drugs could prove highly efficacious in risk stratifying breast cancers and treating African American (AA) women with breast cancer.
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Affiliation(s)
- Angela Ogden
- Department of BiologyGeorgia State University, Atlanta, Georgia, USA
| | | | - Ritu Aneja
- Department of BiologyGeorgia State University, Atlanta, Georgia, USA
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50
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Abstract
Centrosome amplification is a common feature of many types of cancer, but whether it is a cause or consequence is hotly debated. In this issue of Developmental Cell, Levine et al. (2017) provide strong evidence that centrosome amplification is sufficient to initiate tumorigenesis in a mouse model.
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Affiliation(s)
- Jordan W Raff
- Sir William Dunn School of Pathology, South Parks Road, Oxford OX1 3RE, UK.
| | - Renata Basto
- Institut Curie, CNRS UMR144, 12 Rue Lhomond, 75005 Paris, France.
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