1
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Aljiboury A, Mujcic A, Curtis E, Cammerino T, Magny D, Lan Y, Bates M, Freshour J, Ahmed-Braimeh YH, Hehnly H. Pericentriolar matrix (PCM) integrity relies on cenexin and polo-like kinase (PLK)1. Mol Biol Cell 2022; 33:br14. [PMID: 35609215 PMCID: PMC9582643 DOI: 10.1091/mbc.e22-01-0015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 05/16/2022] [Accepted: 05/20/2022] [Indexed: 11/11/2022] Open
Abstract
Polo-like-kinase (PLK) 1 activity is associated with maintaining the functional and physical properties of the centrosome's pericentriolar matrix (PCM). In this study, we use a multimodal approach of human cells (HeLa), zebrafish embryos, and phylogenic analysis to test the role of a PLK1 binding protein, cenexin, in regulating the PCM. Our studies identify that cenexin is required for tempering microtubule nucleation by maintaining PCM cohesion in a PLK1-dependent manner. PCM architecture in cenexin-depleted zebrafish embryos was rescued with wild-type human cenexin, but not with a C-terminal cenexin mutant (S796A) deficient in PLK1 binding. We propose a model where cenexin's C terminus acts in a conserved manner in eukaryotes, excluding nematodes and arthropods, to sequester PLK1 that limits PCM substrate phosphorylation events required for PCM cohesion.
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Affiliation(s)
- Abrar Aljiboury
- Biology Department, Syracuse University, Syracuse, NY 13244
- BioInspired Institute, Syracuse University, Syracuse, NY 13244
| | - Amra Mujcic
- Biology Department, Syracuse University, Syracuse, NY 13244
| | - Erin Curtis
- Biology Department, Syracuse University, Syracuse, NY 13244
| | | | - Denise Magny
- Biology Department, Syracuse University, Syracuse, NY 13244
| | - Yiling Lan
- Biology Department, Syracuse University, Syracuse, NY 13244
| | - Michael Bates
- Biology Department, Syracuse University, Syracuse, NY 13244
| | - Judy Freshour
- Biology Department, Syracuse University, Syracuse, NY 13244
| | | | - Heidi Hehnly
- Biology Department, Syracuse University, Syracuse, NY 13244
- BioInspired Institute, Syracuse University, Syracuse, NY 13244
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2
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Roux-Bourdieu ML, Dwivedi D, Harry D, Meraldi P. PLK1 controls centriole distal appendage formation and centrobin removal via independent pathways. J Cell Sci 2022; 135:275085. [PMID: 35343570 DOI: 10.1242/jcs.259120] [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: 07/11/2021] [Accepted: 03/18/2022] [Indexed: 11/20/2022] Open
Abstract
Centrioles are central structural elements of centrosomes and cilia. In human cells daughter centrioles are assembled adjacent to existing centrioles in S-phase and reach their full functionality with the formation of distal and subdistal appendages one-and-a-half cell cycle later, as they exit their second mitosis. Current models postulate that the centriolar protein centrobin acts as placeholder for distal appendage proteins that must be removed to complete distal appendage formation. Here, we investigated in non-transformed human epithelial RPE1 cells the mechanisms controlling centrobin removal and its effect on distal appendage formation. Our data are consistent with a speculative model in which centrobin is removed from older centrioles due to a higher affinity for the newly born daughter centrioles, under the control of the centrosomal kinase Plk1. This removal also depends on the presence of subdistal appendage proteins on the oldest centriole. Removing centrobin, however, is not required for the recruitment of distal appendage proteins, even though this process is equally dependent on Plk1. We conclude that Plk1 kinase regulates centrobin removal and distal appendage formation during centriole maturation via separate pathways.
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Affiliation(s)
- Morgan Le Roux-Bourdieu
- Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
| | - Devashish Dwivedi
- Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
| | - Daniela Harry
- Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
| | - Patrick Meraldi
- Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland.,Translational Research Centre in Onco-haematology, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
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3
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Krishnan N, Swoger M, Rathbun LI, Fioramonti PJ, Freshour J, Bates M, Patteson AE, Hehnly H. Rab11 endosomes and Pericentrin coordinate centrosome movement during pre-abscission in vivo. Life Sci Alliance 2022; 5:5/7/e202201362. [PMID: 35304423 PMCID: PMC8933627 DOI: 10.26508/lsa.202201362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 11/24/2022] Open
Abstract
Cell division completes when the two daughter cells move their oldest centrosome towards the cytokinetic bridge, which is then cleaved during abscission. The GTPase, Rab11, and the centrosome protein, Pericentrin, work together to coordinate this movement. The last stage of cell division involves two daughter cells remaining interconnected by a cytokinetic bridge that is cleaved during abscission. Conserved between the zebrafish embryo and human cells, we found that the oldest centrosome moves in a Rab11-dependent manner towards the cytokinetic bridge sometimes followed by the youngest. Rab11-endosomes are organized in a Rab11-GTP dependent manner at the mother centriole during pre-abscission, with Rab11 endosomes at the oldest centrosome being more mobile compared with the youngest. The GTPase activity of Rab11 is necessary for the centrosome protein, Pericentrin, to be enriched at the centrosome. Reduction in Pericentrin expression or optogenetic disruption of Rab11-endosome function inhibited both centrosome movement towards the cytokinetic bridge and abscission, resulting in daughter cells prone to being binucleated and/or having supernumerary centrosomes. These studies suggest that Rab11-endosomes contribute to centrosome function during pre-abscission by regulating Pericentrin organization resulting in appropriate centrosome movement towards the cytokinetic bridge and subsequent abscission.
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Affiliation(s)
- Nikhila Krishnan
- Department of Biology, Syracuse University, Syracuse, NY, USA.,BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Maxx Swoger
- Department of Physics, Syracuse University, Physics Building, Syracuse, NY, USA.,BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Lindsay I Rathbun
- Department of Biology, Syracuse University, Syracuse, NY, USA.,BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Peter J Fioramonti
- Department of Biology, Syracuse University, Syracuse, NY, USA.,BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Judy Freshour
- Department of Biology, Syracuse University, Syracuse, NY, USA.,BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Michael Bates
- Department of Biology, Syracuse University, Syracuse, NY, USA.,BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Alison E Patteson
- Department of Physics, Syracuse University, Physics Building, Syracuse, NY, USA.,BioInspired Institute, Syracuse University, Syracuse, NY, USA
| | - Heidi Hehnly
- Department of Biology, Syracuse University, Syracuse, NY, USA .,BioInspired Institute, Syracuse University, Syracuse, NY, USA
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4
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Hall NA, Hehnly H. A centriole's subdistal appendages: contributions to cell division, ciliogenesis and differentiation. Open Biol 2021; 11:200399. [PMID: 33561384 PMCID: PMC8061701 DOI: 10.1098/rsob.200399] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The centrosome is a highly conserved structure composed of two centrioles surrounded by pericentriolar material. The mother, and inherently older, centriole has distal and subdistal appendages, whereas the daughter centriole is devoid of these appendage structures. Both appendages have been primarily linked to functions in cilia formation. However, subdistal appendages present with a variety of potential functions that include spindle placement, chromosome alignment, the final stage of cell division (abscission) and potentially cell differentiation. Subdistal appendages are particularly interesting in that they do not always display a conserved ninefold symmetry in appendage organization on the mother centriole across eukaryotic species, unlike distal appendages. In this review, we aim to differentiate both the morphology and role of the distal and subdistal appendages, with a particular focus on subdistal appendages.
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Affiliation(s)
- Nicole A Hall
- Department of Biology, Syracuse University, Syracuse NY, USA
| | - Heidi Hehnly
- Department of Biology, Syracuse University, Syracuse NY, USA
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5
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Lagos-Cabré R, Ivanova A, Taylor CW. Ca 2+ Release by IP 3 Receptors Is Required to Orient the Mitotic Spindle. Cell Rep 2020; 33:108483. [PMID: 33326774 PMCID: PMC7758162 DOI: 10.1016/j.celrep.2020.108483] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 09/23/2020] [Accepted: 11/13/2020] [Indexed: 11/30/2022] Open
Abstract
The mitotic spindle distributes chromosomes evenly to daughter cells during mitosis. The orientation of the spindle, guided by internal and external cues, determines the axis of cell division and thereby contributes to tissue morphogenesis. Progression through mitosis requires local Ca2+ signals at critical steps, and because store-operated Ca2+ entry is inhibited during mitosis, those signals probably require Ca2+ release through inositol 1,4,5-trisphosphate receptors (IP3Rs). In cells without IP3Rs, astral microtubules around the daughter centrosome are shorter than those at the mother centrosome, and the mitotic spindle fails to align with the substratum during metaphase. The misalignment is due to the spindle ineffectively detecting internal cues rather than a failure of cells to recognize the substratum. Expression of type 3 IP3R is sufficient to rescue spindle alignment, but only if the IP3R has a functional pore. We conclude that Ca2+ signals evoked by IP3Rs are required to orient the mitotic spindle. IP3 receptors are required for mitotic spindle orientation Only IP3 receptors with a functional channel restore spindle orientation Ca2+ release through IP3 receptors is required for spindle orientation
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Affiliation(s)
- Raul Lagos-Cabré
- Department of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge CB2 1PD, UK
| | - Adelina Ivanova
- Department of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge CB2 1PD, UK
| | - Colin W Taylor
- Department of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge CB2 1PD, UK.
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6
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Rathbun LI, Aljiboury AA, Bai X, Hall NA, Manikas J, Amack JD, Bembenek JN, Hehnly H. PLK1- and PLK4-Mediated Asymmetric Mitotic Centrosome Size and Positioning in the Early Zebrafish Embryo. Curr Biol 2020; 30:4519-4527.e3. [PMID: 32916112 PMCID: PMC8159022 DOI: 10.1016/j.cub.2020.08.074] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 08/11/2020] [Accepted: 08/21/2020] [Indexed: 12/13/2022]
Abstract
Factors that regulate mitotic spindle positioning remain unclear within the confines of extremely large embryonic cells, such as the early divisions of the vertebrate embryo, Danio rerio (zebrafish). We find that the mitotic centrosome, a structure that assembles the mitotic spindle [1], is notably large in the zebrafish embryo (246.44 ± 11.93 μm2 in a 126.86 ± 0.35 μm diameter cell) compared to a C. elegans embryo (5.78 ± 0.18 μm2 in a 55.83 ± 1.04 μm diameter cell). During embryonic cell divisions, cell size changes rapidly in both C. elegans and zebrafish [2, 3], where mitotic centrosome area scales more closely with changes in cell size compared to changes in spindle length. Embryonic zebrafish spindles contain asymmetrically sized mitotic centrosomes (2.14 ± 0.13-fold difference between the two), with the larger mitotic centrosome placed toward the embryo center in a polo-like kinase (PLK) 1- and PLK4-dependent manner. We propose a model in which uniquely large zebrafish embryonic centrosomes direct spindle placement within disproportionately large cells.
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Affiliation(s)
- Lindsay I Rathbun
- Syracuse University, Department of Biology, 107 College Place, Syracuse, NY 13244, USA
| | - Abrar A Aljiboury
- Syracuse University, Department of Biology, 107 College Place, Syracuse, NY 13244, USA
| | - Xiaofei Bai
- University of Tennessee, Department of Biochemistry, Cellular and Molecular Biology, 1311 Cumberland Avenue, Knoxville, TN 37916, USA
| | - Nicole A Hall
- Syracuse University, Department of Biology, 107 College Place, Syracuse, NY 13244, USA
| | - Julie Manikas
- Syracuse University, Department of Biology, 107 College Place, Syracuse, NY 13244, USA
| | - Jeffrey D Amack
- SUNY Upstate Medical School, Department of Cell and Developmental Biology, 766 Irving Avenue, Syracuse, NY 13210, USA
| | - Joshua N Bembenek
- University of Tennessee, Department of Biochemistry, Cellular and Molecular Biology, 1311 Cumberland Avenue, Knoxville, TN 37916, USA; University of Michigan Medical School, Department of Molecular, Cellular, Developmental Biology, 1105 North University Avenue, Ann Arbor, MI 48109-1085, USA
| | - Heidi Hehnly
- Syracuse University, Department of Biology, 107 College Place, Syracuse, NY 13244, USA.
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7
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Gao W, Zhang Y, Luo H, Niu M, Zheng X, Hu W, Cui J, Xue X, Bo Y, Dai F, Lu Y, Yang D, Guo Y, Guo H, Li H, Zhang Y, Yang T, Li L, Zhang L, Hou R, Wen S, An C, Ma T, Jin L, Xu W, Wu Y. Targeting SKA3 suppresses the proliferation and chemoresistance of laryngeal squamous cell carcinoma via impairing PLK1-AKT axis-mediated glycolysis. Cell Death Dis 2020; 11:919. [PMID: 33106477 PMCID: PMC7589524 DOI: 10.1038/s41419-020-03104-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/04/2020] [Accepted: 10/06/2020] [Indexed: 12/24/2022]
Abstract
Spindle and kinetochore-associated complex subunit 3 (SKA3) is a well-known regulator of chromosome separation and cell division, which plays an important role in cell proliferation. However, the mechanism of SKA3 regulating tumor proliferation via reprogramming metabolism is unknown. Here, SKA3 is identified as an oncogene in laryngeal squamous cell carcinoma (LSCC), and high levels of SKA3 are closely associated with malignant progression and poor prognosis. In vitro and in vivo experiments demonstrate that SKA3 promotes LSCC cell proliferation and chemoresistance through a novel role of reprogramming glycolytic metabolism. Further studies reveal the downstream mechanisms of SKA3, which can bind and stabilize polo-like kinase 1 (PLK1) protein via suppressing ubiquitin-mediated degradation. The accumulation of PLK1 activates AKT and thus upregulates glycolytic enzymes HK2, PFKFB3, and PDK1, resulting in enhancement of glycolysis. Furthermore, our data reveal that phosphorylation at Thr360 of SKA3 is critical for its binding to PLK1 and the increase in glycolysis. Collectively, the novel oncogenic signal axis "SKA3-PLK1-AKT" plays a critical role in the glycolysis of LSCC. SKA3 may serve as a prognostic biomarker and therapeutic target, providing a potential strategy for proliferation inhibition and chemosensitization in tumors, especially for LSCC patients with PLK1 inhibitor resistance.
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Affiliation(s)
- Wei Gao
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Department of Cell Biology and Genetics, Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Yuliang Zhang
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Hongjie Luo
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Min Niu
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Xiwang Zheng
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Wanglai Hu
- School of Basic Medical Science, Anhui Medical University, 230032, Hefei, Anhui, P.R. China
| | - Jiajia Cui
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Xuting Xue
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Yunfeng Bo
- Department of Pathology, Shanxi Cancer Hospital, 030013, Taiyuan, Shanxi, P.R. China
| | - Fengsheng Dai
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Yan Lu
- Department of Otolaryngology Head & Neck Surgery, First Affiliated Hospital of Jinzhou Medical University, 121001, Jinzhou, Liaoning, P.R. China
| | - Dongli Yang
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Yujia Guo
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Huina Guo
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Huizheng Li
- Department of Otolaryngology Head & Neck Surgery, Dalian Municipal Friendship Hospital, 116100, Dalian, Liaoning, P.R. China
| | - Yu Zhang
- Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
- Department of Physiology, Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Tao Yang
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Li Li
- Department of Cell Biology and Genetics, Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China
| | - Linshi Zhang
- Department of Thyroid Surgery, Zhejiang University School of Medicine Second Affiliated Hospital, 310009, Hangzhou, Zhejiang, P.R. China
| | - Rui Hou
- Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, University of Western Australia, Perth, WA, 6009, Australia
| | - Shuxin Wen
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China.
- Department of Otolaryngology Head & Neck Surgery, Shanxi Bethune Hospital, 030032, Taiyuan, Shanxi, P.R. China.
| | - Changming An
- Department of Head and Neck Surgery, Chinese Academy of Medical Sciences Cancer Institute and Hospital, 100021, Beijing, P.R. China.
| | - Teng Ma
- Department of Cellular and Molecular Biology, Beijing Tuberculosis and Thoracic Tumor Research Institute, 101149, Beijing, P.R. China.
| | - Lei Jin
- School of Medicine and Public Health, The University of Newcastle, Callaghan, NSW, 2308, Australia.
| | - Wei Xu
- Department of Head and Neck Surgery, Shandong Provincial ENT Hospital Affiliated to Shandong University, 250022, Jinan, Shandong, P.R. China.
- Shandong Provincial Institute of Otolaryngology, 250022, Jinan, Shandong, P.R. China.
- Key Laboratory of Otolaryngology, Ministry of Health, Shandong University, 250022, Jinan, Shandong, P.R. China.
| | - Yongyan Wu
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China.
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China.
- Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China.
- Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China.
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, 030001, Taiyuan, Shanxi, P.R. China.
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8
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Liu J, Mei J, Li S, Wu Z, Zhang Y. Establishment of a novel cell cycle-related prognostic signature predicting prognosis in patients with endometrial cancer. Cancer Cell Int 2020; 20:329. [PMID: 32699528 PMCID: PMC7372883 DOI: 10.1186/s12935-020-01428-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 07/15/2020] [Indexed: 12/26/2022] Open
Abstract
Background Endometrial cancer (EnCa) ranks fourth in menace within women’s malignant tumors. Large numbers of studies have proven that functional genes can change the process of tumors by regulating the cell cycle, thereby achieving the goal of targeted therapy. Methods The transcriptional data of EnCa samples obtained from the TCGA database was analyzed. A battery of bioinformatics strategies, which included GSEA, Cox and LASSO regression analysis, establishment of a prognostic signature and a nomogram for overall survival (OS) assessment. The GEPIA and CPTAC analysis were applied to validate the dysregulation of hub genes. For mutation analysis, the “maftools” package was used. Results GSEA identified that cell cycle was the most associated pathway to EnCa. Five cell cycle-related genes including HMGB3, EZH2, NOTCH2, UCK2 and ODF2 were identified as prognosis-related genes to build a prognostic signature. Based on this model, the EnCa patients could be divided into low- and high-risk groups, and patients with high-risk score exhibited poorer OS. Time-dependent ROC and Cox regression analyses revealed that the 5-gene signature could predict EnCa prognosis exactly and independently. GEPIA and CPTAC validation exhibited that these genes were notably dysregulated between EnCa and normal tissues. Lower mutation rates of PTEN, TTN, ARID1A, and etc. were found in samples with high-risk score compared with that with low-risk score. GSEA analysis suggested that the samples of the low- and high-risk groups were concentrated on various pathways, which accounted for the different oncogenic mechanisms in patients in two groups. Conclusion The current research construct a 5-gene signature to evaluate prognosis of EnCa patients, which may innovative clinical application of prognostic assessment.
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Affiliation(s)
- Jinhui Liu
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029 Jiangsu China
| | - Jie Mei
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, 214023 Jiangsu China
| | - Siyue Li
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029 Jiangsu China
| | - Zhipeng Wu
- Department of Urology, The Affiliated Sir Run Run Hospital of Nanjing Medical University, Nanjing, 211166 China
| | - Yan Zhang
- Department of Gynecology and Obstetrics, Wuxi Maternal and Child Health Hospital Affiliated to Nanjing Medical University, No. 48, Huaishu Road, Wuxi, 214000 Jiangsu China
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9
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Rathbun LI, Colicino EG, Manikas J, O'Connell J, Krishnan N, Reilly NS, Coyne S, Erdemci-Tandogan G, Garrastegui A, Freshour J, Santra P, Manning ML, Amack JD, Hehnly H. Cytokinetic bridge triggers de novo lumen formation in vivo. Nat Commun 2020; 11:1269. [PMID: 32152267 PMCID: PMC7062744 DOI: 10.1038/s41467-020-15002-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 02/14/2020] [Indexed: 02/03/2023] Open
Abstract
Multicellular rosettes are transient epithelial structures that serve as intermediates during diverse organ formation. We have identified a unique contributor to rosette formation in zebrafish Kupffer's vesicle (KV) that requires cell division, specifically the final stage of mitosis termed abscission. KV utilizes a rosette as a prerequisite before forming a lumen surrounded by ciliated epithelial cells. Our studies identify that KV-destined cells remain interconnected by cytokinetic bridges that position at the rosette's center. These bridges act as a landmark for directed Rab11 vesicle motility to deliver an essential cargo for lumen formation, CFTR (cystic fibrosis transmembrane conductance regulator). Here we report that premature bridge cleavage through laser ablation or inhibiting abscission using optogenetic clustering of Rab11 result in disrupted lumen formation. We present a model in which KV mitotic cells strategically place their cytokinetic bridges at the rosette center, where Rab11-associated vesicles transport CFTR to aid in lumen establishment.
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Affiliation(s)
- L I Rathbun
- Biology Department, Syracuse University, Syracuse, New York, USA
| | - E G Colicino
- Biology Department, Syracuse University, Syracuse, New York, USA
- Department of Cell and Developmental Biology, SUNY Upstate Medical School, Syracuse, New York, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - J Manikas
- Biology Department, Syracuse University, Syracuse, New York, USA
| | - J O'Connell
- Biology Department, Syracuse University, Syracuse, New York, USA
| | - N Krishnan
- Biology Department, Syracuse University, Syracuse, New York, USA
| | - N S Reilly
- Department of Physics and Astronomy, University of Rochester, Rochester, New York, USA
| | - S Coyne
- Department of Cell and Developmental Biology, SUNY Upstate Medical School, Syracuse, New York, USA
- Department of Biology, SUNY Geneseo, Geneseo, New York, USA
| | | | - A Garrastegui
- Biology Department, Syracuse University, Syracuse, New York, USA
| | - J Freshour
- Biology Department, Syracuse University, Syracuse, New York, USA
| | - P Santra
- Department of Cell and Developmental Biology, SUNY Upstate Medical School, Syracuse, New York, USA
| | - M L Manning
- Department of Physics, Syracuse University, Syracuse, New York, USA
| | - J D Amack
- Department of Cell and Developmental Biology, SUNY Upstate Medical School, Syracuse, New York, USA
| | - H Hehnly
- Biology Department, Syracuse University, Syracuse, New York, USA.
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