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Li Z, Zhao H, Li S, Jiao Z. Midbody remnant regulates the formation of primary cilia and their roles in tumor growth. Zhejiang Da Xue Xue Bao Yi Xue Ban 2024; 53:261-268. [PMID: 38413234 PMCID: PMC11057987 DOI: 10.3724/zdxbyxb-2023-0461] [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: 09/26/2023] [Accepted: 01/26/2024] [Indexed: 02/29/2024]
Abstract
Recent studies have shown that the formation of the primary cilium is associated with a specific cellular organelle known as the midbody remnant (MBR), which is a point-like organelle formed by shedding of the midbody at the end of mitosis. MBRs move along the cell surface close to the center body and regulate it to form primary cilia at the top of the centriole. Primary cilia can act as an organelle to inhibit tumorigenesis, and it is lost in a variety of tumors. Studies have shown that the accumulation of MBRs in tumor cells affects ciliogenesis; in addition, both MBRs and primary cilia are degraded in tumor cells through the autophagy pathway, and MBRs can also transfer tumor signaling pathway factors to primary cilia affecting tumorigenesis. In this article, the basic structure and the formation process of MBR and primary cilia are reviewed and the mechanism of MBRs regulating ciliogenesis is elaborated. The significance of MBR-mediated ciliogenesis in tumorigenesis and its potential as a target for cancer treatment are discussed.
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Affiliation(s)
- Zhengyang Li
- The Second Clinical Medical College of Lanzhou University, Lanzhou 730030, China.
| | - Huiming Zhao
- The Second Clinical Medical College of Lanzhou University, Lanzhou 730030, China
| | - Subing Li
- College of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Zuoyi Jiao
- Department of General Surgery, the Second Hospital of Lanzhou University, Lanzhou 730030, China.
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Wang Y, Yemelyanov A, Go CD, Kim S, Quinn JM, Flozak AS, Le PM, Liang S, Claude-Gingras A, Ikura M, Ishiyama N, Gottardi CJ. α-catenin mechanosensitivity as a route to cytokinesis failure through sequestration of LZTS2. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.25.554884. [PMID: 37662204 PMCID: PMC10473746 DOI: 10.1101/2023.08.25.554884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Epithelial cells can become polyploid upon tissue injury, but mechanosensitive cues that trigger this state are poorly understood. Using α-catenin (α-cat) knock-out Madin Darby Canine Kidney (MDCK) cells reconstituted with wild-type and mutant forms of α-cat as a model system, we find that an established α-cat actin-binding domain unfolding mutant designed to reduce force-sensitive binding to F-actin (α-cat-H0-FABD+) can promote cytokinesis failure, particularly along epithelial wound-fronts. Enhanced α-cat coupling to cortical actin is neither sufficient nor mitotic cell-autonomous for cytokinesis failure, but critically requires the mechanosensitive Middle-domain (M1-M2-M3) and neighboring cells. Disease relevant α-cat M-domain missense mutations known to cause a form of retinal pattern dystrophy (α-cat E307K or L436P) are associated with elevated binucleation rates via cytokinesis failure. Similar binucleation rates are seen in cells expressing an α-cat salt-bridge destabilizing mutant (R551A) designed to promote M2-M3 domain unfurling at lower force thresholds. Since binucleation is strongly enhanced by removal of the M1 as opposed to M2-M3 domains, cytokinetic fidelity is most sensitive to α-cat M2-M3 domain opening. To identify α-cat conformation-dependent proximity partners that contribute to cytokinesis, we used a biotin-ligase approach to distinguished proximity partners that show enhanced recruitment upon α-cat M-domain unfurling (R551A). We identified Leucine Zipper Tumor Suppressor 2 (LZTS2), an abscission factor previously implicated in cytokinesis. We confirm that LZTS2 enriches at the midbody, but discover it also localizes to tight and tricellular junctions. LZTS2 knock-down promotes binucleation in both MDCK and Retinal Pigmented Epithelial (RPE) cells. α-cat mutants with persistent M2-M3 domain opening showed elevated junctional enrichment of LZTS2 from the cytosol compared α-cat wild-type cells. These data implicate LZTS2 as a mechanosensitive effector of α-cat that is critical for cytokinetic fidelity. This model rationalizes how persistent mechano-activation of α-cat may drive tension-induced polyploidization of epithelia post-injury and suggests an underlying mechanism for how pathogenic α-cat mutations drive macular dystrophy.
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Affiliation(s)
- Yuou Wang
- Department of Pulmonary Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Alex Yemelyanov
- Department of Pulmonary Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Christopher D. Go
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health, Toronto, Ontario, M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, M5S 1A8, Canada
| | - Sun Kim
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health, Toronto, Ontario, M5G 1X5, Canada
| | - Jeanne M. Quinn
- Department of Pulmonary Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Annette S. Flozak
- Department of Pulmonary Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Phuong M. Le
- Department of Pulmonary Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Shannon Liang
- Department of Pulmonary Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Anne Claude-Gingras
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health, Toronto, Ontario, M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, M5S 1A8, Canada
| | - Mitsu Ikura
- Department of Medical Biophysics, University Health Network, Princess Margaret Cancer Center, University of Toronto, Toronto, Ontario, Canada
| | - Noboru Ishiyama
- Department of Medical Biophysics, University Health Network, Princess Margaret Cancer Center, University of Toronto, Toronto, Ontario, Canada
| | - Cara J. Gottardi
- Department of Pulmonary Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
- Cell & Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
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Park HS, Papanastasi E, Blanchard G, Chiticariu E, Bachmann D, Plomann M, Morice-Picard F, Vabres P, Smahi A, Huber M, Pich C, Hohl D. ARP-T1-associated Bazex-Dupré-Christol syndrome is an inherited basal cell cancer with ciliary defects characteristic of ciliopathies. Commun Biol 2021; 4:544. [PMID: 33972689 PMCID: PMC8110579 DOI: 10.1038/s42003-021-02054-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/30/2021] [Indexed: 01/20/2023] Open
Abstract
Actin-Related Protein-Testis1 (ARP-T1)/ACTRT1 gene mutations cause the Bazex-Dupré-Christol Syndrome (BDCS) characterized by follicular atrophoderma, hypotrichosis, and basal cell cancer. Here, we report an ARP-T1 interactome (PXD016557) that includes proteins involved in ciliogenesis, endosomal recycling, and septin ring formation. In agreement, ARP-T1 localizes to the midbody during cytokinesis and the basal body of primary cilia in interphase. Tissue samples from ARP-T1-associated BDCS patients have reduced ciliary length. The severity of the shortened cilia significantly correlates with the ARP-T1 levels, which was further validated by ACTRT1 knockdown in culture cells. Thus, we propose that ARP-T1 participates in the regulation of cilia length and that ARP-T1-associated BDCS is a case of skin cancer with ciliopathy characteristics. Park et al. characterise the interactome, localisation and function of Actin-Related Protein-Testis1 protein (ARP-T1), encoded by the ACTRT1 gene, associated with inherited basal cell cancer. They find that ARP-T1 is localised to the primary cilia basal body in epidermal cells, interacts with the cilia machinery, and is needed for proper ciliogenesis.
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Affiliation(s)
- Hyun-Sook Park
- Department of Dermatology, CHUV-FBM UNIL, Hôpital de Beaumont, Lausanne, Switzerland
| | - Eirini Papanastasi
- Department of Dermatology, CHUV-FBM UNIL, Hôpital de Beaumont, Lausanne, Switzerland
| | - Gabriela Blanchard
- Department of Dermatology, CHUV-FBM UNIL, Hôpital de Beaumont, Lausanne, Switzerland
| | - Elena Chiticariu
- Department of Dermatology, CHUV-FBM UNIL, Hôpital de Beaumont, Lausanne, Switzerland
| | - Daniel Bachmann
- Department of Dermatology, CHUV-FBM UNIL, Hôpital de Beaumont, Lausanne, Switzerland
| | - Markus Plomann
- Center for Biochemistry, University of Cologne, Cologne, Germany
| | | | - Pierre Vabres
- Department of Dermatology, CHU, Hôpital du Bocage, Dijon, France
| | - Asma Smahi
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,IMAGINE Institute INSERM UMR 1163, Paris, France
| | - Marcel Huber
- Department of Dermatology, CHUV-FBM UNIL, Hôpital de Beaumont, Lausanne, Switzerland
| | - Christine Pich
- Department of Dermatology, CHUV-FBM UNIL, Hôpital de Beaumont, Lausanne, Switzerland
| | - Daniel Hohl
- Department of Dermatology, CHUV-FBM UNIL, Hôpital de Beaumont, Lausanne, Switzerland.
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Bernabé-Rubio M, Alonso MA. Routes and machinery of primary cilium biogenesis. Cell Mol Life Sci 2017; 74:4077-4095. [PMID: 28624967 PMCID: PMC11107551 DOI: 10.1007/s00018-017-2570-5] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 06/01/2017] [Accepted: 06/13/2017] [Indexed: 02/06/2023]
Abstract
Primary cilia are solitary, microtubule-based protrusions of the cell surface that play fundamental roles as photosensors, mechanosensors and biochemical sensors. Primary cilia dysfunction results in a long list of developmental and degenerative disorders that combine to give rise to a large spectrum of human diseases affecting almost any major body organ. Depending on the cell type, primary ciliogenesis is initiated intracellularly, as in fibroblasts, or at the cell surface, as in renal polarized epithelial cells. In this review, we have focused on the routes of primary ciliogenesis placing particular emphasis on the recently described pathway in renal polarized epithelial cells by which the midbody remnant resulting from a previous cell division event enables the centrosome for initiation of primary cilium assembly. The protein machinery implicated in primary cilium formation in epithelial cells, including the machinery best known for its involvement in establishing cell polarity and polarized membrane trafficking, is also discussed.
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Affiliation(s)
- Miguel Bernabé-Rubio
- Department of Cell Biology and Immunology, Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Nicolás Cabrera 1, Cantoblanco, 28049, Madrid, Spain
| | - Miguel A Alonso
- Department of Cell Biology and Immunology, Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Nicolás Cabrera 1, Cantoblanco, 28049, Madrid, Spain.
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Johnson CA, Wright CE, Ghashghaei HT. Regulation of cytokinesis during corticogenesis: focus on the midbody. FEBS Lett 2017; 591:4009-4026. [PMID: 28493553 DOI: 10.1002/1873-3468.12676] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 04/23/2017] [Accepted: 05/07/2017] [Indexed: 12/21/2022]
Abstract
Development of the cerebral cortices depends on tight regulation of cell divisions. In this system, stem and progenitor cells undergo symmetric and asymmetric divisions to ultimately produce neurons that establish the layers of the cortex. Cell division culminates with the formation of the midbody, a transient organelle that establishes the site of abscission between nascent daughter cells. During cytokinetic abscission, the final stage of cell division, one daughter cell will inherit the midbody remnant, which can then maintain or expel the remnant, but mechanisms and circumstances influencing this decision are unclear. This review describes the midbody and its constituent proteins, as well as the known consequences of their manipulation during cortical development. The potential functional relevance of midbody mechanisms is discussed.
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Affiliation(s)
- Caroline A Johnson
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.,Comparative Biomedical Sciences Graduate Program, Neurosciences Concentration Area, North Carolina State University, Raleigh, NC, USA
| | - Catherine E Wright
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | - H Troy Ghashghaei
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.,Comparative Biomedical Sciences Graduate Program, Neurosciences Concentration Area, North Carolina State University, Raleigh, NC, USA.,Program in Genetics, North Carolina State University, Raleigh, NC, USA.,Keck Center for Behavioral Biology, North Carolina State University, Raleigh, NC, USA
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