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Schatten H. The Impact of Centrosome Pathologies on Ovarian Cancer Development and Progression with a Focus on Centrosomes as Therapeutic Target. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1452:37-64. [PMID: 38805124 DOI: 10.1007/978-3-031-58311-7_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
The impact of centrosome abnormalities on cancer cell proliferation has been recognized as early as 1914 (Boveri, Zur Frage der Entstehung maligner Tumoren. Jena: G. Fisher, 1914), but vigorous research on molecular levels has only recently started when it became fully apparent that centrosomes can be targeted for new cancer therapies. While best known for their microtubule-organizing capabilities as MTOC (microtubule organizing center) in interphase and mitosis, centrosomes are now further well known for a variety of different functions, some of which are related to microtubule organization and consequential activities such as cell division, migration, maintenance of cell shape, and vesicle transport powered by motor proteins, while other functions include essential roles in cell cycle regulation, metabolic activities, signal transduction, proteolytic activity, and several others that are now heavily being investigated for their role in diseases and disorders (reviewed in Schatten and Sun, Histochem Cell Biol 150:303-325, 2018; Schatten, Adv Anat Embryol Cell Biol 235:43-50, 2022a; Schatten, Adv Anat Embryol Cell Biol 235:17-35, 2022b).Cancer cell centrosomes differ from centrosomes in noncancer cells in displaying specific abnormalities that include phosphorylation abnormalities, overexpression of specific centrosomal proteins, abnormalities in centriole and centrosome duplication, formation of multipolar spindles that play a role in aneuploidy and genomic instability, and several others that are highlighted in the present review on ovarian cancer. Ovarian cancer cell centrosomes, like those in other cancers, display complex abnormalities that in part are based on the heterogeneity of cells in the cancer tissues resulting from different etiologies of individual cancer cells that will be discussed in more detail in this chapter.Because of the critical role of centrosomes in cancer cell proliferation, several lines of research are being pursued to target centrosomes for therapeutic intervention to inhibit abnormal cancer cell proliferation and control tumor progression. Specific centrosome abnormalities observed in ovarian cancer will be addressed in this chapter with a focus on targeting such aberrations for ovarian cancer-specific therapies.
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Affiliation(s)
- Heide Schatten
- University of Missouri-Columbia Department of Veterinary Pathobiology, Columbia, MO, USA.
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2
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Tang Q, Sensale S, Bond C, Xing J, Qiao A, Hugelier S, Arab A, Arya G, Lakadamyali M. Interplay between stochastic enzyme activity and microtubule stability drives detyrosination enrichment on microtubule subsets. Curr Biol 2023; 33:5169-5184.e8. [PMID: 37979580 PMCID: PMC10843832 DOI: 10.1016/j.cub.2023.10.068] [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: 01/06/2023] [Revised: 08/03/2023] [Accepted: 10/30/2023] [Indexed: 11/20/2023]
Abstract
Microtubules in cells consist of functionally diverse subpopulations carrying distinct post-translational modifications (PTMs). Akin to the histone code, the tubulin code regulates a myriad of microtubule functions, ranging from intracellular transport to chromosome segregation. However, how individual PTMs only occur on subsets of microtubules to contribute to microtubule specialization is not well understood. In particular, microtubule detyrosination, the removal of the C-terminal tyrosine on α-tubulin subunits, marks the stable population of microtubules and modifies how microtubules interact with other microtubule-associated proteins to regulate a wide range of cellular processes. Previously, we found that in certain cell types, only ∼30% of microtubules are highly enriched with the detyrosination mark and that detyrosination spans most of the length of a microtubule, often adjacent to a completely tyrosinated microtubule. How the activity of a cytosolic detyrosinase, vasohibin (VASH), leads to only a small subpopulation of highly detyrosinated microtubules is unclear. Here, using quantitative super-resolution microscopy, we visualized nascent microtubule detyrosination events in cells consisting of 1-3 detyrosinated α-tubulin subunits after nocodazole washout. Microtubule detyrosination accumulates slowly and in a dispersed pattern across the microtubule length. By visualizing single molecules of VASH in live cells, we found that VASH engages with microtubules stochastically on a short timescale, suggesting limited removal of tyrosine per interaction, consistent with the super-resolution results. Combining these quantitative imaging results with simulations incorporating parameters from our experiments, we provide evidence for a stochastic model for cells to establish a subset of detyrosinated microtubules via a detyrosination-stabilization feedback mechanism.
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Affiliation(s)
- Qing Tang
- Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Sebastian Sensale
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA; Department of Physics, Cleveland State University, Cleveland, OH 44115-2214, USA.
| | - Charles Bond
- Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jiazheng Xing
- Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Andy Qiao
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Siewert Hugelier
- Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Arian Arab
- Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Gaurav Arya
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Melike Lakadamyali
- Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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3
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Turner KA, Caswell DL, McGrady BM, Pietras-Allen A, Sedlak J, Nathan C, Parasuraman S, McGann AP, Fazili FM, Bell JR, El Smail KN, Pillai SB, Parry KR, Richardson KP, Ruble K, Jaiswal A, Shah TA, Sindhwani P, Avidor-Reiss T. CP110 and CEP135 localize near the proximal and distal centrioles of cattle and human spermatozoa. MICROPUBLICATION BIOLOGY 2023; 2023:10.17912/micropub.biology.000951. [PMID: 37822686 PMCID: PMC10562935 DOI: 10.17912/micropub.biology.000951] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/07/2023] [Accepted: 09/22/2023] [Indexed: 10/13/2023]
Abstract
Centrosomes play an important role in the microtubule organization of a cell. The sperm's specialized centrosome consists of the canonical barrel-shaped proximal centriole, the funnel-shaped distal centriole, and the pericentriolar material known as striated columns (or segmented columns). Here, we examined the localization of the centriole proteins CEP135 and CP110 in cattle and human spermatozoa. In canonical centrioles, CP110 is a centriole tip protein that controls cilia formation, while CEP135 is a structural protein essential for constructing the centriole. In contrast, we found antibodies recognizing CEP135 and CP110 label near the proximal and distal centrioles at the expected location of the striated columns and capitulum in cattle and humans in an antibody and species-specific way. These findings provide a pathway to understanding the unique functions of spermatozoan centrosome.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Kelsie Ruble
- University of Toledo, Toledo, Ohio, United States
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4
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Gorry R, Brennan K, Lavin PTM, Sheridan R, Mc Gee MM. Phosphorylation of the prolyl isomerase Cyclophilin A regulates its localisation and release from the centrosome during mitosis. Cell Cycle 2023; 22:951-966. [PMID: 36691345 PMCID: PMC10054169 DOI: 10.1080/15384101.2023.2167430] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 11/30/2022] [Indexed: 01/25/2023] Open
Abstract
The centrosome acts as a protein platform from which proteins are deployed to function throughout the cell cycle. Previously, we have shown that the prolyl isomerase Cyclophilin A (CypA) localizes to the centrosome in interphase and re-localizes to the midbody during mitosis where it functions in cytokinesis. In this study, investigation of CypA by SDS-PAGE during the cell cycle reveals that it undergoes a mobility shift during mitosis, indicative of a post-translational modification, which may correlate with its subcellular re-localization. Due to the lack of a phospho-specific antibody, we used site-directed mutagenesis to demonstrate that the previously identified serine 77 phosphorylation site within CypA is important for control of CypA centrosome localization. Furthermore, CypA is shown to interact with the mitotic NIMA-related kinase 2 (Nek2) during interphase and mitosis, while also interacting with the Nek2-antagonist PP1 during interphase but not during mitosis, suggesting a potential role for the Nek2-PP1 complex in CypA phospho-regulation. In support of this, Nek2 is capable of phosphorylating CypA in vitro. Overall, this work reveals that phosphorylation of CypA at serine 77 is important for its release from the centrosome during mitosis and may be regulated by the activity of Nek2 and PP1 during the cell cycle.
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Affiliation(s)
- Rebecca Gorry
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Ireland
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Ireland
| | - Kieran Brennan
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Ireland
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Ireland
| | - Paul TM Lavin
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Ireland
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Ireland
| | - Rebecca Sheridan
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Ireland
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Ireland
| | - Margaret M Mc Gee
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Ireland
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Ireland
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Ervin EH, French R, Chang CH, Pauklin S. Inside the stemness engine: Mechanistic links between deregulated transcription factors and stemness in cancer. Semin Cancer Biol 2022; 87:48-83. [PMID: 36347438 DOI: 10.1016/j.semcancer.2022.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/22/2022] [Accepted: 11/03/2022] [Indexed: 11/07/2022]
Abstract
Cell identity is largely determined by its transcriptional profile. In tumour, deregulation of transcription factor expression and/or activity enables cancer cell to acquire a stem-like state characterised by capacity to self-renew, differentiate and form tumours in vivo. These stem-like cancer cells are highly metastatic and therapy resistant, thus warranting a more complete understanding of the molecular mechanisms downstream of the transcription factors that mediate the establishment of stemness state. Here, we review recent research findings that provide a mechanistic link between the commonly deregulated transcription factors and stemness in cancer. In particular, we describe the role of master transcription factors (SOX, OCT4, NANOG, KLF, BRACHYURY, SALL, HOX, FOX and RUNX), signalling-regulated transcription factors (SMAD, β-catenin, YAP, TAZ, AP-1, NOTCH, STAT, GLI, ETS and NF-κB) and unclassified transcription factors (c-MYC, HIF, EMT transcription factors and P53) across diverse tumour types, thereby yielding a comprehensive overview identifying shared downstream targets, highlighting unique mechanisms and discussing complexities.
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Affiliation(s)
- Egle-Helene Ervin
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Old Road, Headington, Oxford, OX3 7LD, United Kingdom.
| | - Rhiannon French
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Old Road, Headington, Oxford, OX3 7LD, United Kingdom.
| | - Chao-Hui Chang
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Old Road, Headington, Oxford, OX3 7LD, United Kingdom.
| | - Siim Pauklin
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Old Road, Headington, Oxford, OX3 7LD, United Kingdom.
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6
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Langlois-Lemay L, D’Amours D. Moonlighting at the Poles: Non-Canonical Functions of Centrosomes. Front Cell Dev Biol 2022; 10:930355. [PMID: 35912107 PMCID: PMC9329689 DOI: 10.3389/fcell.2022.930355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 06/17/2022] [Indexed: 11/13/2022] Open
Abstract
Centrosomes are best known as the microtubule organizing centers (MTOCs) of eukaryotic cells. In addition to their classic role in chromosome segregation, centrosomes play diverse roles unrelated to their MTOC activity during cell proliferation and quiescence. Metazoan centrosomes and their functional doppelgängers from lower eukaryotes, the spindle pole bodies (SPBs), act as important structural platforms that orchestrate signaling events essential for cell cycle progression, cellular responses to DNA damage, sensory reception and cell homeostasis. Here, we provide a critical overview of the unconventional and often overlooked roles of centrosomes/SPBs in the life cycle of eukaryotic cells.
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Affiliation(s)
- Laurence Langlois-Lemay
- Department of Cellular and Molecular Medicine, Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON, Canada
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7
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Evaluation of the association between centrosome amplification in tumor tissue of breast cancer patients and changes in the expression of CETN1 and CNTROB genes. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2021.101481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Moghadam ARE, Moghadam MT, Hemadi M, Saki G. Oocyte quality and aging. JBRA Assist Reprod 2022; 26:105-122. [PMID: 34338482 PMCID: PMC8769179 DOI: 10.5935/1518-0557.20210026] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 04/15/2021] [Indexed: 11/20/2022] Open
Abstract
It is well known that female reproduction ability decreases during the forth decade of life due to age-related changes in oocyte quality and quantity; although the number of women trying to conceive has today increased remarkably between the ages of 36 to 44. The causes of reproductive aging and physiological aspects of this phenomenon are still elusive. With increase in the women's age, during Assisted Reproductive Technologies (ART) we have perceived a significant decline in the number and quality of retrieved oocytes, as well as in ovarian follicle reserves. This is because of increased aneuploidy due to factors such as spindle apparatus disruption; oxidative stress and mitochondrial damage. The aim of this review paper is to study data on the potential role of the aging process impacting oocyte quality and female reproductive ability. We present the current evidence that show the decreased oocyte quality with age, related to reductions in female reproductive outcome. The aging process is complicated and it is caused by many factors that control cellular and organism life span. Although the factors responsible for reduced oocyte quality remain unknown, the present review focuses on the potential role of ovarian follicle environment, oocyte structure and its organelles. To find a way to optimize oocyte quality and ameliorate clinical outcomes for women with aging-related causes of infertility.
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Affiliation(s)
- Ali Reza Eftekhari Moghadam
- Cellular & Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Anatomical Science, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahin Taheri Moghadam
- Department of Anatomical Science, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Masoud Hemadi
- Department of Anatomical Science, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ghasem Saki
- Department of Anatomical Science, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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9
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Centrosome Dysfunctions in Cancer. THE CENTROSOME AND ITS FUNCTIONS AND DYSFUNCTIONS 2022; 235:43-50. [DOI: 10.1007/978-3-031-20848-5_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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10
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Centrosome as Center for Proteolytic Activity and Dysfunctions Associated with Pathogenesis of Human Disease. THE CENTROSOME AND ITS FUNCTIONS AND DYSFUNCTIONS 2022; 235:37-42. [DOI: 10.1007/978-3-031-20848-5_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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11
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Schatten H. The Centrosome Cycle within the Cell Cycle. THE CENTROSOME AND ITS FUNCTIONS AND DYSFUNCTIONS 2022; 235:17-35. [DOI: 10.1007/978-3-031-20848-5_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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12
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Centrosomes and Centrosome Equivalents in Other Systems. THE CENTROSOME AND ITS FUNCTIONS AND DYSFUNCTIONS 2022; 235:85-104. [DOI: 10.1007/978-3-031-20848-5_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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13
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Cell and Molecular Biology of Centrosome Structure and Function. THE CENTROSOME AND ITS FUNCTIONS AND DYSFUNCTIONS 2022; 235:1-16. [DOI: 10.1007/978-3-031-20848-5_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Centrosome, the Newly Identified Passenger through Tunneling Nanotubes, Increases Binucleation and Proliferation Marker in Receiving Cells. Int J Mol Sci 2021; 22:ijms22189680. [PMID: 34575851 PMCID: PMC8467045 DOI: 10.3390/ijms22189680] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/26/2021] [Accepted: 09/02/2021] [Indexed: 12/21/2022] Open
Abstract
Type 1 tunneling nanotubes (TNTs-1) are long, cytoplasmic protrusions containing actin, microtubules and intermediate filaments that provide a bi-directional road for the transport of various components between distant cells. TNT-1 formation is accompanied by dramatic cytoskeletal reorganization offering mechanical support for intercellular communication. Although the centrosome is the major microtubule nucleating center and also a signaling hub, the relationship between the centrosome and TNTs-1 is still unexplored. We provide here the first evidence of centrosome localization and orientation towards the TNTs-1 protrusion site, which is implicated in TNT-1 formation. We also envision a model whereby synchronized reorientation of the Golgi apparatus along with the centrosome towards TNTs-1 ensures effective polarized trafficking through TNTs-1. Furthermore, using immunohistochemistry and live imaging, we observed for the first time the movement of an extra centrosome within TNTs-1. In this regard, we hypothesize a novel role for TNTs-1 as a critical pathway serving to displace extra centrosomes and potentially to either protect malignant cells against aberrant centrosome amplification or contribute to altering cells in the tumor environment. Indeed, we have observed the increase in binucleation and proliferation markers in receiving cells. The fact that the centrosome can be both as the base and the user of TNTs-1 offers new perspectives and new opportunities to follow in order to improve our knowledge of the pathophysiological mechanisms under TNT control.
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Angerani S, Lindberg E, Klena N, Bleck CKE, Aumeier C, Winssinger N. Kinesin-1 activity recorded in living cells with a precipitating dye. Nat Commun 2021; 12:1463. [PMID: 33674590 PMCID: PMC7935933 DOI: 10.1038/s41467-021-21626-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 02/03/2021] [Indexed: 01/15/2023] Open
Abstract
Kinesin-1 is a processive motor protein that uses ATP-derived energy to transport a variety of intracellular cargoes toward the cell periphery. The ability to visualize and monitor kinesin transport in live cells is critical to study the myriad of functions associated with cargo trafficking. Herein we report the discovery of a fluorogenic small molecule substrate (QPD-OTf) for kinesin-1 that yields a precipitating dye along its walking path on microtubules (MTs). QPD-OTf enables to monitor native kinesin-1 transport activity in cellulo without external modifications. In vitro assays show that kinesin-1 and MTs are sufficient to yield fluorescent crystals; in cells, kinesin-1 specific transport of cargo from the Golgi appears as trails of fluorescence over time. These findings are further supported by docking studies, which suggest the binding of the activity-based substrate in the nucleotide binding site of kinesin-1.
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Affiliation(s)
- Simona Angerani
- School of Chemistry and Biochemistry, NCCR Chemical Biology, Faculty of Science, University of Geneva, Geneva, Switzerland
| | - Eric Lindberg
- School of Chemistry and Biochemistry, NCCR Chemical Biology, Faculty of Science, University of Geneva, Geneva, Switzerland
| | - Nikolai Klena
- Department of Cell Biology, Faculty of Science, University of Geneva, Geneva, Switzerland
| | - Christopher K E Bleck
- Electron Microscopy Core Facility, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Charlotte Aumeier
- School of Chemistry and Biochemistry, NCCR Chemical Biology, Faculty of Science, University of Geneva, Geneva, Switzerland.
| | - Nicolas Winssinger
- School of Chemistry and Biochemistry, NCCR Chemical Biology, Faculty of Science, University of Geneva, Geneva, Switzerland.
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Priyanga J, Guha G, Bhakta-Guha D. Microtubule motors in centrosome homeostasis: A target for cancer therapy? Biochim Biophys Acta Rev Cancer 2021; 1875:188524. [PMID: 33582170 DOI: 10.1016/j.bbcan.2021.188524] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/02/2021] [Accepted: 02/05/2021] [Indexed: 01/02/2023]
Abstract
Cancer is a grievous concern to human health, owing to a massive heterogeneity in its cause and impact. Dysregulation (numerical, positional and/or structural) of centrosomes is one of the notable factors among those that promote onset and progression of cancers. In a normal dividing cell, a pair of centrosomes forms two poles, thereby governing the formation of a bipolar spindle assembly. A large number of cancer cells, however, harbor supernumerary centrosomes, which mimic the bipolar arrangement in normal cells by centrosome clustering (CC) into two opposite poles, thus developing a pseudo-bipolar spindle assembly. Manipulation of centrosome homeostasis is the paramount pre-requisite for the evasive strategy of CC in cancers. Out of the varied factors that uphold centrosome integrity, microtubule motors (MiMos) play a critical role. Categorized as dyneins and kinesins, MiMos are involved in cohesion of centrosomes, and also facilitate the maintenance of the numerical, positional and structural integrity of centrosomes. Herein, we elucidate the decisive mechanisms undertaken by MiMos to mediate centrosome homeostasis, and how dysregulation of the same might lead to CC in cancer cells. Understanding the impact of MiMos on CC might open up avenues toward a credible therapeutic target against diverse cancers.
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Affiliation(s)
- J Priyanga
- Cellular Dyshomeostasis Laboratory (CDHL), School of Chemical and Bio Technology, SASTRA University, Thanjavur 613 401, Tamil Nadu, India
| | - Gunjan Guha
- Cellular Dyshomeostasis Laboratory (CDHL), School of Chemical and Bio Technology, SASTRA University, Thanjavur 613 401, Tamil Nadu, India.
| | - Dipita Bhakta-Guha
- Cellular Dyshomeostasis Laboratory (CDHL), School of Chemical and Bio Technology, SASTRA University, Thanjavur 613 401, Tamil Nadu, India.
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17
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Bilinski M, Lanari C, Fabris VT. Centrosome Abnormalities and Polyploidy in Murine Mammary Carcinomas with Different Degrees of Hormone Responsiveness. Cancer Invest 2020; 38:300-309. [PMID: 32378982 DOI: 10.1080/07357907.2020.1766482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Centrosome amplification leads to aberrant mitosis, giving rise to aneuploidy and it has been associated with poor prognosis in human cancers. This study aimed to evaluate the relationship between polyploidy, centrosome abnormalities, and response to endocrine treatment in progestin-induced mouse mammary carcinomas. We found cells with three or more centrosomes in the polyploid tumors. The endocrine unresponsive tumors showed a higher average number of centrosomes per cell than the responsive tumors. The results suggest an association between polyploidy and centrosome amplification with the resistance to endocrine therapy in this luminal breast cancer model.
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Affiliation(s)
- Melina Bilinski
- Laboratory of Hormonal Carcinogenesis, Instituto de Biología y Medicina Experimental (IBYME-CONICET), Buenos Aires, Argentina
| | - Claudia Lanari
- Laboratory of Hormonal Carcinogenesis, Instituto de Biología y Medicina Experimental (IBYME-CONICET), Buenos Aires, Argentina
| | - Victoria T Fabris
- Laboratory of Hormonal Carcinogenesis, Instituto de Biología y Medicina Experimental (IBYME-CONICET), Buenos Aires, Argentina
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18
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Xie M, Cai L, Li J, Zhao J, Guo Y, Hou Z, Zhang X, Tian H, Li A, Miao Y. FAM110B Inhibits Non-Small Cell Lung Cancer Cell Proliferation and Invasion Through Inactivating Wnt/β-Catenin Signaling. Onco Targets Ther 2020; 13:4373-4384. [PMID: 32547070 PMCID: PMC7245470 DOI: 10.2147/ott.s247491] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 05/04/2020] [Indexed: 12/12/2022] Open
Abstract
PURPOSE FAM110B is a member of the FAM110 family (family with sequence similarity 110), which is a component of the centrosome associated proteins. Previous studies have shown that FAM110B may be involved in the process of cell cycle and may play a role in carcinogenesis and tumor progression. Using an online database, we found that FAM110B may predict favorable prognosis in non-small cell lung cancer (NSCLC). Therefore, the role of FAM110B playing in NSCLC needs to be further investigated. PATIENTS AND METHODS Online databases and immunohistochemistry were used to predict the expression and prognostic value of FAM110B in NSCLC samples. Immunofluorescence staining was used to investigate the subcellular distribution of FAM110B. Western blot, MTT, colony formation, and matrigel invasion assay were used to detect the expression and the effect of FAM110B on mediating proliferation and invasion in NSCLC cell lines. RESULTS In this study, immunohistochemistry results showed that FAM110B expression significantly correlated with early TNM staging (P=0.020) and negative regional lymph node metastasis (P=0.006). Kaplan-Meier survival analysis found that the median survival time of patients with positive FAM110B expression (56.181±2.348 months) was significantly longer than those with negative FAM110B expression (47.701±2.997 months, P=0.024). Moreover, overexpression of FAM110B inhibited the proliferation and invasion of A549, H1299, and LK2 cell lines. Conversely, FAM110B RNAi exerted opposite effects in the above cell lines. Furthermore, FAM110B overexpression downregulated the active β-catenin, phosphorylation of GSK-3β (p-GSK-3β), cyclin B1, cyclin D1, MMP2, and MMP7, and upregulated the phosphorylation of β-catenin (p-β-catenin) in A549 and H1299 cells. Besides, the FAM110B-induced depressions of p-GSK-3β and active β-catenin were reversed after being treated with Wnt/β-catenin inhibitor, XAV-939. CONCLUSION In summary, our results demonstrated that the overexpression of FAM110B restricts the proliferation and invasion of NSCLC cells by inhibiting Wnt/β-catenin signaling. Our study reveals the antitumor function of FAM110B in NSCLC and indicates that FAM110B is a potential therapeutic target.
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Affiliation(s)
- Menghua Xie
- Department of Pathology, The College of Basic Medical Sciences and The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Lin Cai
- Department of Pathology, The College of Basic Medical Sciences and The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Jingduo Li
- Department of Pathology, The College of Basic Medical Sciences and The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Jing Zhao
- Department of Pathology, The College of Basic Medical Sciences and The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Yingxue Guo
- Department of Pathology, The College of Basic Medical Sciences and The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Zaiyu Hou
- Department of Pathology, The College of Basic Medical Sciences and The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Xiupeng Zhang
- Department of Pathology, The College of Basic Medical Sciences and The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Hua Tian
- Department of Radiotherapy, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Ailin Li
- Department of Radiotherapy, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yuan Miao
- Department of Pathology, The College of Basic Medical Sciences and The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
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19
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Alvarado-Kristensson M. Choreography of the centrosome. Heliyon 2020; 6:e03238. [PMID: 31989056 PMCID: PMC6970175 DOI: 10.1016/j.heliyon.2020.e03238] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 01/10/2020] [Accepted: 01/13/2020] [Indexed: 12/31/2022] Open
Abstract
More than a century ago, the centrosome was discovered and described as “the true division organ of the cell”. Electron microscopy revealed that a centrosome is an amorphous structure or pericentriolar protein matrix that surrounds a pair of well-organized centrioles. Today, the importance of the centrosome as a microtubule-organizing center and coordinator of the mitotic spindle is questioned, because centrioles are absent in up to half of all known eukaryotic species, and various mechanisms for acentrosomal microtubule nucleation have been described. This review recapitulates the known functions of centrosome movements in cellular homeostasis and discusses knowledge gaps in this field.
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Affiliation(s)
- Maria Alvarado-Kristensson
- Molecular Pathology, Department of Translational Medicine, Lund University, Skåne University Hospital, Malmö, SE-20502, Sweden
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20
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Oliver KF, Wahl AM, Dick M, Toenges JA, Kiser JN, Galliou JM, Moraes JGN, Burns GW, Dalton J, Spencer TE, Neibergs HL. Genomic Analysis of Spontaneous Abortion in Holstein Heifers and Primiparous Cows. Genes (Basel) 2019; 10:genes10120954. [PMID: 31766405 PMCID: PMC6969913 DOI: 10.3390/genes10120954] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/15/2019] [Accepted: 11/19/2019] [Indexed: 12/18/2022] Open
Abstract
Background: The objectives of this study were to identify loci, positional candidate genes, gene-sets, and pathways associated with spontaneous abortion (SA) in cattle and compare these results with previous human SA studies to determine if cattle are a good SA model for humans. Pregnancy was determined at gestation day 35 for Holstein heifers and cows. Genotypes from 43,984 SNPs of 499 pregnant heifers and 498 pregnant cows that calved at full term (FT) were compared to 62 heifers and 28 cows experiencing SA. A genome-wide association analysis, gene-set enrichment analysis–single nucleotide polymorphism, and ingenuity pathway analysis were used to identify regions, pathways, and master regulators associated with SA in heifers, cows, and a combined population. Results: Twenty-three loci and 21 positional candidate genes were associated (p < 1 × 10−5) with SA and one of these (KIR3DS1) has been associated with SA in humans. Eight gene-sets (NES > 3.0) were enriched in SA and one was previously reported as enriched in human SA. Four master regulators (p < 0.01) were associated with SA within two populations. Conclusions: One locus associated with SA was validated and 39 positional candidate and leading-edge genes and 2 gene-sets were enriched in SA in cattle and in humans.
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Affiliation(s)
- Kayleen F. Oliver
- Department of Animal Sciences and Center for Reproductive Biology, Washington State University, Pullman, WA 646310, USA; (K.F.O.); (A.M.W.); (M.D.); (J.A.T.); (J.N.K.); (J.M.G.)
| | - Alexandria M. Wahl
- Department of Animal Sciences and Center for Reproductive Biology, Washington State University, Pullman, WA 646310, USA; (K.F.O.); (A.M.W.); (M.D.); (J.A.T.); (J.N.K.); (J.M.G.)
| | - Mataya Dick
- Department of Animal Sciences and Center for Reproductive Biology, Washington State University, Pullman, WA 646310, USA; (K.F.O.); (A.M.W.); (M.D.); (J.A.T.); (J.N.K.); (J.M.G.)
| | - Jewel A. Toenges
- Department of Animal Sciences and Center for Reproductive Biology, Washington State University, Pullman, WA 646310, USA; (K.F.O.); (A.M.W.); (M.D.); (J.A.T.); (J.N.K.); (J.M.G.)
| | - Jennifer N. Kiser
- Department of Animal Sciences and Center for Reproductive Biology, Washington State University, Pullman, WA 646310, USA; (K.F.O.); (A.M.W.); (M.D.); (J.A.T.); (J.N.K.); (J.M.G.)
| | - Justine M. Galliou
- Department of Animal Sciences and Center for Reproductive Biology, Washington State University, Pullman, WA 646310, USA; (K.F.O.); (A.M.W.); (M.D.); (J.A.T.); (J.N.K.); (J.M.G.)
| | - Joao G. N. Moraes
- Animal Sciences Research Center, Division of Animal Sciences, University of Missouri, Columbia, MO S158A, USA (G.W.B.); (T.E.S.)
| | - Gregory W. Burns
- Animal Sciences Research Center, Division of Animal Sciences, University of Missouri, Columbia, MO S158A, USA (G.W.B.); (T.E.S.)
| | - Joseph Dalton
- Department of Animal and Veterinary Sciences, University of Idaho, Caldwell, ID 1904 E, USA;
| | - Thomas E. Spencer
- Animal Sciences Research Center, Division of Animal Sciences, University of Missouri, Columbia, MO S158A, USA (G.W.B.); (T.E.S.)
| | - Holly L. Neibergs
- Department of Animal Sciences and Center for Reproductive Biology, Washington State University, Pullman, WA 646310, USA; (K.F.O.); (A.M.W.); (M.D.); (J.A.T.); (J.N.K.); (J.M.G.)
- Correspondence: ; Tel.: +1-1509-335-6491
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21
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Barbiero I, De Rosa R, Kilstrup-Nielsen C. Microtubules: A Key to Understand and Correct Neuronal Defects in CDKL5 Deficiency Disorder? Int J Mol Sci 2019; 20:E4075. [PMID: 31438497 PMCID: PMC6747382 DOI: 10.3390/ijms20174075] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 08/14/2019] [Accepted: 08/19/2019] [Indexed: 02/06/2023] Open
Abstract
CDKL5 deficiency disorder (CDD) is a severe neurodevelopmental encephalopathy caused by mutations in the X-linked CDKL5 gene that encodes a serine/threonine kinase. CDD is characterised by the early onset of seizures and impaired cognitive and motor skills. Loss of CDKL5 in vitro and in vivo affects neuronal morphology at early and late stages of maturation, suggesting a link between CDKL5 and the neuronal cytoskeleton. Recently, various microtubule (MT)-binding proteins have been identified as interactors of CDKL5, indicating that its roles converge on regulating MT functioning. MTs are dynamic structures that are important for neuronal morphology, migration and polarity. The delicate control of MT dynamics is fundamental for proper neuronal functions, as evidenced by the fact that aberrant MT dynamics are involved in various neurological disorders. In this review, we highlight the link between CDKL5 and MTs, discussing how CDKL5 deficiency may lead to deranged neuronal functions through aberrant MT dynamics. Finally, we discuss whether the regulation of MT dynamics through microtubule-targeting agents may represent a novel strategy for future pharmacological approaches in the CDD field.
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Affiliation(s)
- Isabella Barbiero
- Department of Biotechnology and Life Sciences, (DBSV), University of Insubria, Via Manara 7, 21052 Busto Arsizio (VA), Italy
| | - Roberta De Rosa
- Department of Biotechnology and Life Sciences, (DBSV), University of Insubria, Via Manara 7, 21052 Busto Arsizio (VA), Italy
| | - Charlotte Kilstrup-Nielsen
- Department of Biotechnology and Life Sciences, (DBSV), University of Insubria, Via Manara 7, 21052 Busto Arsizio (VA), Italy.
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22
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Hoshino Y. Updating the markers for oocyte quality evaluation: intracellular temperature as a new index. Reprod Med Biol 2018; 17:434-441. [PMID: 30377396 PMCID: PMC6194278 DOI: 10.1002/rmb2.12245] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 08/07/2018] [Accepted: 08/09/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The developmental competence of an embryo is principally dictated by the oocyte. Usually, oocyte selection is based on morphological properties; however, all morphological criteria that are currently used for the grading and screening of oocytes are not able to eliminate the subjectivity. Despite recent studies of the molecular factors related to oocyte quality, it is technically difficult to develop an index based on these factors, and new indices that reflect intracellular conditions are necessary. METHODS Morphological and molecular factors influencing developmental competence were comprehensively reviewed, and intracellular temperature was evaluated as a new marker of oocyte quality. MAIN FINDINGS The intracellular temperature of mature oocytes was high in fresh oocytes and decreased with time after polar body release. Under the same conditions, the intracellular temperature and its distribution differed among oocytes, suggesting that temperature represents the state of each oocyte. CONCLUSION Intracellular temperature is advantageous as an objective and quantitative indicator of oocyte quality. Further studies should evaluate the link between temperature and cellular phenomena to establish its use as an indicator of quality.
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Affiliation(s)
- Yumi Hoshino
- Graduate School of Biosphere ScienceHiroshima UniversityHiroshimaJapan
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23
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Taatjes DJ, Roth J. In focus in HCB. Histochem Cell Biol 2018; 150:301-302. [PMID: 30194491 DOI: 10.1007/s00418-018-1720-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2018] [Indexed: 11/26/2022]
Affiliation(s)
- Douglas J Taatjes
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, VT, 05405, USA.
| | - Jürgen Roth
- University of Zurich, 8091, Zurich, Switzerland
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24
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Functions and dysfunctions of the mammalian centrosome in health, disorders, disease, and aging. Histochem Cell Biol 2018; 150:303-325. [PMID: 30062583 DOI: 10.1007/s00418-018-1698-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2018] [Indexed: 01/17/2023]
Abstract
Since its discovery well over 100 years ago (Flemming, in Sitzungsber Akad Wissensch Wien 71:81-147, 1875; Van Beneden, in Bull Acad R Belg 42:35-97, 1876) the centrosome is increasingly being recognized as a most impactful organelle for its role not only as primary microtubule organizing center (MTOC) but also as a major communication center for signal transduction pathways and as a center for proteolytic activities. Its significance for cell cycle regulation has been well studied and we now also know that centrosome dysfunctions are implicated in numerous diseases and disorders including cancer, Alstrom syndrome, Bardet-Biedl syndrome, Huntington's disease, reproductive disorders, and several other diseases and disorders. The present review is meant to build on information presented in the previous review (Schatten, in Histochem Cell Biol 129:667-686, 2008) and to highlight functions of the mammalian centrosome in health, and dysfunctions in disorders, disease, and aging with six sections focused on (1) centrosome structure and functions, and new insights into the role of centrosomes in cell cycle progression; (2) the role of centrosomes in tumor initiation and progression; (3) primary cilia, centrosome-primary cilia interactions, and consequences for cell cycle functions in health and disease; (4) transitions from centrosome to non-centrosome functions during cellular polarization; (5) other centrosome dysfunctions associated with the pathogenesis of human disease; and (6) centrosome functions in oocyte germ cells and dysfunctions in reproductive disorders and reproductive aging.
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25
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The Impact of Centrosome Pathologies on Prostate Cancer Development and Progression. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1095:67-81. [DOI: 10.1007/978-3-319-95693-0_4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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26
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Schatten H. Brief Overview of Prostate Cancer Statistics, Grading, Diagnosis and Treatment Strategies. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1095:1-14. [PMID: 30229546 DOI: 10.1007/978-3-319-95693-0_1] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This chapter provides a brief overview of prostate cancer statistics, grading, diagnosis and treatment strategies that are discussed in more detail in the subsequent chapters of this book and the companion book titled "Clinical Molecular and Diagnostic Imaging of Prostate Cancer and Treatment Strategies". It also points to websites that provide additional useful information for patients affected by prostate cancer and for students and teachers to obtain practical and updated information on research, new diagnostic modalities and new therapies including new updated clinical trials. Three sections are focused on overview of prostate cancer statistics; overview of detection, diagnosis, stages and grading of prostate cancer; and treatment possibilities and options.
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Affiliation(s)
- Heide Schatten
- Department of Veterinary Pathobiology, University of Missouri, Columbia, MO, USA.
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27
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Microtubule-Organizing Centers: Towards a Minimal Parts List. Trends Cell Biol 2017; 28:176-187. [PMID: 29173799 DOI: 10.1016/j.tcb.2017.10.005] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 10/20/2017] [Accepted: 10/23/2017] [Indexed: 12/17/2022]
Abstract
Despite decades of molecular analysis of the centrosome, an important microtubule-organizing center (MTOC) of animal cells, the molecular basis of microtubule organization remains obscure. A major challenge is the sheer complexity of the interplay of the hundreds of proteins that constitute the centrosome. However, this complexity owes not only to the centrosome's role as a MTOC but also to the requirements of its duplication cycle and to various other functions such as the formation of cilia, the integration of various signaling pathways, and the organization of actin filaments. Thus, rather than using the parts lists to reconstruct the centrosome, we propose to identify the subset of proteins minimally needed to assemble a MTOC and to study this process at non-centrosomal sites.
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28
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Kerketta LS, Ghosh K, Nadkarni A, Madkaikar M, Vundinti BR. Centrosome Aberration Frequency and Disease Association in B-Acute Lymphoblastic Leukemia. ACTA ACUST UNITED AC 2017; 31:215-220. [PMID: 28358703 DOI: 10.21873/invivo.11048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 12/29/2016] [Accepted: 01/09/2017] [Indexed: 01/18/2023]
Abstract
Recent developments in genome-wide genetic analysis in B-acute lymphoblastic leukemia (B-ALL) have provided insight into disease pathogenesis and prognosis. B-ALL cases usually carry a primary genetic event, often a chromosome translocation, and a constellation of secondary genetic alterations that are acquired and selected dynamically in a nonlinear fashion. As far as we are aware of, for the first time, we studied centrosome aberration in patients with B-ALL to understand the progression of the disease. A cytogenetic study was carried out by GTG-banded karyotyping and fluorescence in situ hybridization. DNA index study was carried out with flow cytometry. Indirect immunostaining of centrosomes was performed on mononuclear cells using primary and corresponding secondary antibodies for centrosome-specific protein γ-tubulin. Three primary and corresponding secondary antibodies to three different centrosome-specific proteins, namely α-tubulin, γ-tubulin and pericentrin, were used for indirect immunostaining. The study was carried out on 50 patients with B-ALL. Centrosomal abnormalities were detected in 36 (72%) patients and the remainder (28%) had normal centrosome structure and numbers. Out of these 36 patients with abnormal centrosome, structural abnormalities were detected in 12 (33.3%) and numerical abnormalities in six (16.6%). Both structural and numerical aberrations were detected in 18 (50%) patients. When correlated with the cytogenetic and DNA index findings, 26/27 (96.2%) patients had centrosome defects concomitant with both abnormal karyotype and aneuploidy. Out of 50 patients with B-ALL, 17 (34%) had normal karyotype detected by both karyotype and DNA index, among these, seven (41.17%) patients had centrosome aberration. The morphological and structural abnormalities of the centrosome present in B-ALL cells have a role in disease development and can be considered as prognostic markers.
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Affiliation(s)
- Lily S Kerketta
- National Institute of Immunohematology, Parel, Mumbai, India
| | - Kanjaksha Ghosh
- National Institute of Immunohematology, Parel, Mumbai, India
| | - Anita Nadkarni
- National Institute of Immunohematology, Parel, Mumbai, India
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29
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Schatten H, Sun QY. Centrosome and microtubule functions and dysfunctions in meiosis: implications for age-related infertility and developmental disorders. Reprod Fertil Dev 2017; 27:934-43. [PMID: 25903261 DOI: 10.1071/rd14493] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 03/18/2015] [Indexed: 12/13/2022] Open
Abstract
The effects of oocyte aging on meiotic spindle dynamics have been well recognised, but the mechanisms underlying the effects are not well understood. In this paper we review the role of centrosomes and the microtubule cytoskeleton in meiotic spindle formation and maintenance, and the impact of oocyte aging on spindle integrity resulting in centrosome and microtubule dysfunctions that are associated with aneuploidy. Loss of spindle integrity includes dispersion of proteins from the centrosome core structure and loss of attachment of microtubules to centrosomes and kinetochores, which will result in abnormal chromosome separation. The inability of centrosomal proteins to accurately associate with the centrosome structure may be the result of destabilisation of the core structure itself or of microtubule destabilisation at the centrosome-facing microtubule areas that are acetylated in fresh oocytes but may not be acetylated in aging oocytes. Microtubule destabilisation prevents accurate motor-driven transport of centrosomal proteins along microtubules to form and maintain a functional centrosome. Other factors to form and maintain the MII spindle include signal transductions that affect microtubule dynamics and stability. Understanding the mechanisms underlying centrosome and microtubule dysfunctions during oocyte aging will allow diagnosis and analysis of oocyte quality and abnormalities as important aspects for targeted treatment of aging oocytes to extend or restore viability and developmental capacity. New therapeutic approaches will allow improvements in reproductive success rates in IVF clinics, as well as improvements in reproductive success rates in farm animals. This review is focused on: (1) centrosome and microtubule dynamics in fresh and aging oocytes; (2) regulation of centrosome and/or microtubule dynamics and function; and (3) possible treatments to extend the oocyte's reproductive capacity and viability span.
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Affiliation(s)
- Heide Schatten
- Department of Veterinary Pathobiology, University of Missouri, 1600 E Rollins Street, Columbia, MO 65211, USA
| | - Qing-Yuan Sun
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, China
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30
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Leoni M, Manyuhina OV, Bowick MJ, Marchetti MC. Defect driven shapes in nematic droplets: analogies with cell division. SOFT MATTER 2017; 13:1257-1266. [PMID: 28102411 DOI: 10.1039/c6sm02584f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Building on the striking similarity between the structure of the spindle during mitosis in living cells and nematic textures in confined liquid crystals, we use a continuum model of two-dimensional nematic liquid crystal droplets to examine the physical aspects of cell division. The model investigates the interplay between bulk elasticity of the microtubule assembly, described as a nematic liquid crystal, and surface elasticity of the cell cortex, modeled as a bounding flexible membrane, in controlling cell shape and division. The centrosomes at the spindle poles correspond to the cores of the topological defects required to accommodate nematic order in a closed geometry. We map out the progression of both healthy bipolar and faulty multi-polar division as a function of an effective parameter that incorporates active processes and controls centrosome separation. A robust prediction, independent of energetic considerations, is that the transition from a single cell to daughters cells occurs at critical value of this parameter. Our model additionally suggests that microtubule anchoring at the cell cortex may play an important role for successful bipolar division. This can be tested experimentally by regulating microtubule anchoring.
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Affiliation(s)
- Marco Leoni
- Physics Department and Soft Matter Program, Syracuse University, Syracuse, NY 13244, USA. and Institut Curie, PSL Research University, CNRS, UMR 168, 26 rue d'Ulm, F-75005, Paris, France
| | - Oksana V Manyuhina
- Physics Department and Soft Matter Program, Syracuse University, Syracuse, NY 13244, USA.
| | - Mark J Bowick
- Physics Department and Soft Matter Program, Syracuse University, Syracuse, NY 13244, USA. and Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106- 4030, USA
| | - M Cristina Marchetti
- Physics Department and Soft Matter Program, Syracuse University, Syracuse, NY 13244, USA.
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31
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Schatten H, Sun QY. Cytoskeletal Functions, Defects, and Dysfunctions Affecting Human Fertilization and Embryo Development. Hum Reprod 2016. [DOI: 10.1002/9781118849613.ch10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Heide Schatten
- Department of Veterinary Pathobiology; University of Missouri; Columbia MO USA
| | - Qing-Yuan Sun
- State Key Laboratory of Reproductive Biology, Institute of Zoology; Chinese Academy of Sciences; Beijing China
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32
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Meyers S, Riejo-Pera R. The Non-Human Primate Model for Early Human Development. Hum Reprod 2016. [DOI: 10.1002/9781118849613.ch9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Stuart Meyers
- Department of Anatomy, Physiology, and Cell Biology; School of Veterinary Medicine, University of California; Davis CA USA
| | - Renee Riejo-Pera
- Department of Cell Biology and Neurosciences, and Department of Chemistry and Biochemistry; Montana State University; Bozeman MT USA
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Docking and three-dimensional quantitative structure-activity relationship analyses of imidazole and thiazolidine derivatives as Aurora A kinase inhibitors. Arch Pharm Res 2016; 39:1635-1643. [PMID: 27909956 DOI: 10.1007/s12272-016-0870-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 11/28/2016] [Indexed: 02/03/2023]
Abstract
Aurora A kinase is involved in the inactivation of apoptosis leading to ovarian, breast, colon, and pancreatic cancers. Inhibitors of Aurora A kinase promote aberrant mitosis resulting in arrest at a pseudo G1 state to induce mitotic catastrophe, ultimately leading to apoptosis. In this study, ligand-based and docking-based three-dimensional quantitative structure-activity relationship (3D-QSAR) analyses of imidazole and thiazolidine derivatives as potential Aurora A kinase inhibitors were performed. The results provided highly reliable and predictive 3D-QSAR comparative molecular similarity index analysis (CoMSIA) models with a cross-validated q2 value of 0.768, non-cross-validated r2 value of 0.983, and predictive coefficient [Formula: see text] value of 0.978. CoMSIA contour maps suggested that the NH and benzyl hydroxy groups in R9, and the CO group in the thiazolidine ring and pyridine ring were important components for biological activity. The maps also suggest that the introduction of hydroxy groups at C2 of the imino-phenyl ring, C5 in the pyridine ring, or the substitution of the imino-phenyl ring for the imino-2-pyridine ring could be applied to enhance biological activity.
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34
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Scholkmann F. Long range physical cell-to-cell signalling via mitochondria inside membrane nanotubes: a hypothesis. Theor Biol Med Model 2016; 13:16. [PMID: 27267202 PMCID: PMC4896004 DOI: 10.1186/s12976-016-0042-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 05/27/2016] [Indexed: 02/07/2023] Open
Abstract
Coordinated interaction of single cells by cell-to-cell communication (signalling) enables complex behaviour necessary for the functioning of multicellular organisms. A quite newly discovered cell-to-cell signalling mechanism relies on nanotubular cell-co-cell connections, termed "membrane nanotubes" (MNTs). The present paper presents the hypothesis that mitochondria inside MNTs can form a connected structure (mitochondrial network) which enables the exchange of energy and signals between cells. It is proposed that two modes of energy and signal transmission may occur: electrical/electrochemical and electromagnetic (optical). Experimental work supporting the hypothesis is reviewed, and suggestions for future research regarding the discussed topic are given.
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Affiliation(s)
- Felix Scholkmann
- Biomedical Optics Research Laboratory, Department of Neonatology, University Hospital Zurich, University of Zurich, Frauenklinikstr. 10, 8091, Zurich, Switzerland.
- Research Office for Complex Physical and Biological Systems (ROCoS), Mutschellenstr. 179, 8038, Zurich, Switzerland.
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Gu YF, OuYang Q, Dai C, Lu CF, Lin G, Gong F, Lu GX. Abnormalities in centrosome number in human embryos and embryonic stem cells. Mol Reprod Dev 2016; 83:392-404. [PMID: 26946049 DOI: 10.1002/mrd.22633] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Accepted: 02/26/2016] [Indexed: 01/15/2023]
Affiliation(s)
- Yi-Fan Gu
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- Reproductive and Genetic Hospital of CITIC-XIANGYA; Changsha China
| | - Qi OuYang
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- National Engineering and Research Center of Human Stem Cell; Changsha China
| | - Can Dai
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- National Engineering and Research Center of Human Stem Cell; Changsha China
| | - Chang-Fu Lu
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- Reproductive and Genetic Hospital of CITIC-XIANGYA; Changsha China
| | - Ge Lin
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- Reproductive and Genetic Hospital of CITIC-XIANGYA; Changsha China
- National Engineering and Research Center of Human Stem Cell; Changsha China
| | - Fei Gong
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- Reproductive and Genetic Hospital of CITIC-XIANGYA; Changsha China
| | - Guang-Xiu Lu
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- Reproductive and Genetic Hospital of CITIC-XIANGYA; Changsha China
- National Engineering and Research Center of Human Stem Cell; Changsha China
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Rebelo S, Santos M, Martins F, da Cruz e Silva EF, da Cruz e Silva OA. Protein phosphatase 1 is a key player in nuclear events. Cell Signal 2015; 27:2589-98. [DOI: 10.1016/j.cellsig.2015.08.007] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/31/2015] [Accepted: 08/10/2015] [Indexed: 12/17/2022]
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Vertii A, Bright A, Delaval B, Hehnly H, Doxsey S. New frontiers: discovering cilia-independent functions of cilia proteins. EMBO Rep 2015; 16:1275-87. [PMID: 26358956 DOI: 10.15252/embr.201540632] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 08/17/2015] [Indexed: 12/11/2022] Open
Abstract
In most vertebrates, mitotic spindles and primary cilia arise from a common origin, the centrosome. In non-cycling cells, the centrosome is the template for primary cilia assembly and, thus, is crucial for their associated sensory and signaling functions. During mitosis, the duplicated centrosomes mature into spindle poles, which orchestrate mitotic spindle assembly, chromosome segregation, and orientation of the cell division axis. Intriguingly, both cilia and spindle poles are centrosome-based, functionally distinct structures that require the action of microtubule-mediated, motor-driven transport for their assembly. Cilia proteins have been found at non-cilia sites, where they have distinct functions, illustrating a diverse and growing list of cellular processes and structures that utilize cilia proteins for crucial functions. In this review, we discuss cilia-independent functions of cilia proteins and re-evaluate their potential contributions to "cilia" disorders.
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Affiliation(s)
- Anastassiia Vertii
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Alison Bright
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | | | - Heidi Hehnly
- Department of Cell and Developmental Biology, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Stephen Doxsey
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
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Gavriilidis P, Giakoustidis A, Giakoustidis D. Aurora Kinases and Potential Medical Applications of Aurora Kinase Inhibitors: A Review. J Clin Med Res 2015; 7:742-51. [PMID: 26345296 PMCID: PMC4554212 DOI: 10.14740/jocmr2295w] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2015] [Indexed: 12/17/2022] Open
Abstract
Aurora kinases (AKs) represent a novel group of serine/threonine kinases. They were originally described in 1995 by David Glover in the course of studies of mutant alleles characterized with unusual spindle pole configuration in Drosophila melanogaster. Thus far, three AKs A, B, and C have been discovered in human healthy and neoplastic cells. Each one locates in different subcellular locations and they are all nuclear proteins. AKs are playing an essential role in mitotic events such as monitoring of the mitotic checkpoint, creation of bipolar mitotic spindle and alignment of centrosomes on it, also regulating centrosome separation, bio-orientation of chromosomes and cytokinesis. Any inactivation of them can have catastrophic consequences on mitotic events of spindle formation, alignment of centrosomes and cytokinesis, resulting in apoptosis. Overexpression of AKs has been detected in diverse solid and hematological cancers and has been linked with a dismal prognosis. After discovery and identification of the first aurora kinase inhibitor (AKI) ZM447439 as a potential drug for targeted therapy in cancer treatment, approximately 30 AKIs have been introduced in cancer treatment.
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Affiliation(s)
- Paschalis Gavriilidis
- Department of Surgical Oncology, Theageneio Anticancer Hospital, Thessaloniki, Greece
| | - Alexandros Giakoustidis
- Department of Transplantation Surgery, Hippokrateion University Hospital, Thessaloniki, Greece
| | - Dimitrios Giakoustidis
- Department of Transplantation Surgery, Hippokrateion University Hospital, Thessaloniki, Greece
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Shi X, Yao Y, Wang Y, Zhang Y, Huang Q, Zhou J, Liu M, Li D. Cep70 regulates microtubule stability by interacting with HDAC6. FEBS Lett 2015; 589:1771-7. [PMID: 26112604 DOI: 10.1016/j.febslet.2015.06.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 05/25/2015] [Accepted: 06/04/2015] [Indexed: 02/02/2023]
Abstract
Microtubules, highly dynamic components of the cytoskeleton, are involved in mitosis, cell migration and intracellular trafficking. Our previous work has shown that the centrosomal protein Cep70 regulates microtubule organization and mitotic spindle orientation in mammalian cells. However, it remains elusive whether Cep70 is implicated in microtubule stability. Here we demonstrate that Cep70 enhances microtubule resistance to cold or nocodazole treatment. Our data further show that Cep70 promotes microtubule stability by regulating tubulin acetylation, and plays an important role in stabilizing microtubules. Mechanistic studies reveal that Cep70 interacts and colocalizes with histone deacetylase 6 (HDAC6) in the cytoplasm. These findings suggest that Cep70 promotes microtubule stability by interaction with HDAC6 and regulation of tubulin acetylation.
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Affiliation(s)
- Xingjuan Shi
- Key Laboratory of Developmental Genes and Human Disease, Institute of Life Sciences, Southeast University, Nanjing 210096, China.
| | - Yanjun Yao
- Key Laboratory of Developmental Genes and Human Disease, Institute of Life Sciences, Southeast University, Nanjing 210096, China
| | - Yujue Wang
- Key Laboratory of Developmental Genes and Human Disease, Institute of Life Sciences, Southeast University, Nanjing 210096, China
| | - Yu Zhang
- Key Laboratory of Developmental Genes and Human Disease, Institute of Life Sciences, Southeast University, Nanjing 210096, China
| | - Qinghai Huang
- Key Laboratory of Developmental Genes and Human Disease, Institute of Life Sciences, Southeast University, Nanjing 210096, China
| | - Jun Zhou
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Min Liu
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Dengwen Li
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China.
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Prasad S, Tiwari M, Koch B, Chaube SK. Morphological, cellular and molecular changes during postovulatory egg aging in mammals. J Biomed Sci 2015; 22:36. [PMID: 25994054 PMCID: PMC4440248 DOI: 10.1186/s12929-015-0143-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 05/01/2015] [Indexed: 11/29/2022] Open
Abstract
Postovulatory aging is associated with several morphological, cellular and molecular changes that deteriorate egg quality either by inducing abortive spontaneous egg activation (SEA) or by egg apoptosis. The reduced egg quality results in poor fertilization rate, embryo quality and reproductive outcome. Although postovulatory aging-induced abortive SEA has been reported in several mammalian species, the molecular mechanism(s) underlying this process remains to be elucidated. The postovulatory aging-induced morphological and cellular changes are characterized by partial cortical granules exocytosis, zona pellucida hardening, exit from metaphase-II (M-II)arrest and initiation of extrusion of second polar body in aged eggs. The molecular changes include reduction of adenosine 3',5'- cyclic monophosphate (cAMP) level, increase of reactive oxygen species (ROS) and thereby cytosolic free calcium (Ca2+) level. Increased levels of cAMP and/or ROS trigger accumulation of Thr-14/Tyr-15 phosphorylated cyclin-dependent kinase 1 (Cdk1) on one hand and degradation of cyclin B1 through ubiquitin-mediated proteolysis on the other hand to destabilize maturation promoting factor (MPF). The destabilized MPF triggers postovulatory aging-induced abortive SEA and limits various assisted reproductive technologies (ARTs) outcome in several mammalian species. Use of certain drugs that can either increase cAMP or reduce ROS level would prevent postovulatory aging-induced deterioration in egg quality so that more number of good quality eggs can be made available to improve ART outcome in mammals including human.
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Affiliation(s)
- Shilpa Prasad
- Cell Physiology Laboratory, Biochemistry Unit, Department of Zoology, Banaras Hindu University, Varanasi, 221005, UP, India.
| | - Meenakshi Tiwari
- Cell Physiology Laboratory, Biochemistry Unit, Department of Zoology, Banaras Hindu University, Varanasi, 221005, UP, India.
| | - Biplob Koch
- Genotoxicology and Cancer Biology Laboratory, Department of Zoology, Banaras Hindu University, Varanasi, 221005, UP, India.
| | - Shail K Chaube
- Cell Physiology Laboratory, Biochemistry Unit, Department of Zoology, Banaras Hindu University, Varanasi, 221005, UP, India.
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41
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Wong YL, Anzola JV, Davis RL, Yoon M, Motamedi A, Kroll A, Seo CP, Hsia JE, Kim SK, Mitchell JW, Mitchell BJ, Desai A, Gahman TC, Shiau AK, Oegema K. Cell biology. Reversible centriole depletion with an inhibitor of Polo-like kinase 4. Science 2015; 348:1155-60. [PMID: 25931445 DOI: 10.1126/science.aaa5111] [Citation(s) in RCA: 314] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 04/17/2015] [Indexed: 11/02/2022]
Abstract
Centrioles are ancient organelles that build centrosomes, the major microtubule-organizing centers of animal cells. Extra centrosomes are a common feature of cancer cells. To investigate the importance of centrosomes in the proliferation of normal and cancer cells, we developed centrinone, a reversible inhibitor of Polo-like kinase 4 (Plk4), a serine-threonine protein kinase that initiates centriole assembly. Centrinone treatment caused centrosome depletion in human and other vertebrate cells. Centrosome loss irreversibly arrested normal cells in a senescence-like G1 state by a p53-dependent mechanism that was independent of DNA damage, stress, Hippo signaling, extended mitotic duration, or segregation errors. In contrast, cancer cell lines with normal or amplified centrosome numbers could proliferate indefinitely after centrosome loss. Upon centrinone washout, each cancer cell line returned to an intrinsic centrosome number "set point." Thus, cells with cancer-associated mutations fundamentally differ from normal cells in their response to centrosome loss.
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Affiliation(s)
- Yao Liang Wong
- Department of Cellular and Molecular Medicine, Ludwig Institute for Cancer Research, University of California, San Diego, La Jolla, CA 92093, USA
| | - John V Anzola
- Small Molecule Discovery Program, Ludwig Institute for Cancer Research, La Jolla, CA 92093, USA
| | - Robert L Davis
- Small Molecule Discovery Program, Ludwig Institute for Cancer Research, La Jolla, CA 92093, USA
| | - Michelle Yoon
- Small Molecule Discovery Program, Ludwig Institute for Cancer Research, La Jolla, CA 92093, USA
| | - Amir Motamedi
- Small Molecule Discovery Program, Ludwig Institute for Cancer Research, La Jolla, CA 92093, USA
| | - Ashley Kroll
- Department of Cellular and Molecular Medicine, Ludwig Institute for Cancer Research, University of California, San Diego, La Jolla, CA 92093, USA
| | - Chanmee P Seo
- Small Molecule Discovery Program, Ludwig Institute for Cancer Research, La Jolla, CA 92093, USA
| | - Judy E Hsia
- Small Molecule Discovery Program, Ludwig Institute for Cancer Research, La Jolla, CA 92093, USA
| | - Sun K Kim
- Department of Cell and Molecular Biology, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Jennifer W Mitchell
- Department of Cell and Molecular Biology, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Brian J Mitchell
- Department of Cell and Molecular Biology, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Arshad Desai
- Department of Cellular and Molecular Medicine, Ludwig Institute for Cancer Research, University of California, San Diego, La Jolla, CA 92093, USA
| | - Timothy C Gahman
- Small Molecule Discovery Program, Ludwig Institute for Cancer Research, La Jolla, CA 92093, USA
| | - Andrew K Shiau
- Small Molecule Discovery Program, Ludwig Institute for Cancer Research, La Jolla, CA 92093, USA.
| | - Karen Oegema
- Department of Cellular and Molecular Medicine, Ludwig Institute for Cancer Research, University of California, San Diego, La Jolla, CA 92093, USA.
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Venghateri JB, Jindal B, Panda D. The centrosome: a prospective entrant in cancer therapy. Expert Opin Ther Targets 2015; 19:957-72. [PMID: 25787715 DOI: 10.1517/14728222.2015.1018823] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
INTRODUCTION The centrosome plays an essential role in the cell cycle. The centrosome and its associated proteins assist in nucleating and organizing microtubules. A structural or a functional aberration in the centrosome is known to cause abnormal cell proliferation leading to tumors. Therefore, the centrosome is considered as a promising anti-cancer target. AREAS COVERED This review begins with a brief introduction to the centrosome and its role in the cell cycle. We elaborate on the centrosome-associated proteins that regulate microtubule dynamics. In addition, we discuss the centrosomal protein kinase targets such as cyclin-dependent, polo-like and aurora kinases. Inhibitors targeting these kinases are undergoing clinical trials for cancer chemotherapy. Further, we shed light on new approaches to target the centrosomal proteins for cancer therapy. EXPERT OPINION Insights into the functioning of the centrosomal proteins will be extremely beneficial in validating the centrosome as a target in cancer therapy. New strategies either as a single entity or in combination with current chemotherapeutic agents should be researched or exploited to reveal the promises that the centrosome holds for future cancer therapy.
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Affiliation(s)
- Jubina B Venghateri
- Indian Institute of Technology Bombay, IITB-Monash Research Academy , Powai, Mumbai 400076 , India
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Setti AS, Braga DPDAF, Vingris L, Serzedello T, Figueira RDCS, Iaconelli A, Borges E. Sperm morphological abnormalities visualised at high magnification predict embryonic development, from fertilisation to the blastocyst stage, in couples undergoing ICSI. J Assist Reprod Genet 2014; 31:1533-9. [PMID: 25186503 DOI: 10.1007/s10815-014-0326-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 08/26/2014] [Indexed: 10/24/2022] Open
Abstract
PURPOSE To investigate the predictive value of the motile sperm organelle morphology examination (MSOME) on embryo morphology. METHODS The morphologies of 540 embryos obtained from 60 couples undergoing ICSI were evaluated from days 1 to 5 of development and were examined for associations with the percentages of morphologically normal paternal sperm and of the paternal sperm with large nuclear vacuoles (LNVs) as determined by MSOME. RESULTS An increased percentage of LNV sperm was associated with increased odds of a zygote presenting with pronuclear abnormalities. It was also associated with decreased odds of (i) normal cleavage on days 2 and 3 of development, (ii) the presence of a high-quality embryo on day 3, (iii) the development of an embryo to the blastocyst stage, and (iv) an embryo possessing a normal trophectoderm and inner cell mass. The calculated areas under the curves differed for the embryos that did and did not develop to the blastocyst stage and for the high- and low-quality blastocysts. The optimal cut-off value for the percentage of LNV sperm that maximised proper blastocyst formation was ≤24.5 %, and the cut-off value that maximised blastocyst quality was ≤19.5 %. CONCLUSIONS These results suggest a very early onset of paternal influences on embryo development. The evaluation of the incidence of vacuoles by MSOME may significantly improve upon the prognostic information provided by conventional semen analyses.
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Affiliation(s)
- Amanda Souza Setti
- Fertility - Centro de Fertilização Assistida, Av. Brigadeiro Luis Antonio, 4545, São Paulo, SP, Brazil, 01401-002
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Tanaka K. Centrosome duplication: suspending a license by phosphorylating a template. Curr Biol 2014; 24:R651-R653. [PMID: 25050963 DOI: 10.1016/j.cub.2014.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The phosphorylation status of Sfi1, a structural component of the yeast centrosome, governs the centrosome duplication cycle, raising the possibility that licensing of centrosome duplication occurs by modulating Sfi1, which potentially acts as a template for a new centrosome.
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Affiliation(s)
- Kayoko Tanaka
- Department of Biochemistry, University of Leicester, Henry Wellcome Building, Lancaster Road, Leicester LE1 9HN, UK.
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45
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Weissbein U, Benvenisty N, Ben-David U. Quality control: Genome maintenance in pluripotent stem cells. ACTA ACUST UNITED AC 2014; 204:153-63. [PMID: 24446481 PMCID: PMC3897183 DOI: 10.1083/jcb.201310135] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Pluripotent stem cells (PSCs) must maintain their proper genomic content in order to preserve appropriate self-renewal and differentiation capacities. However, their prolonged in vitro propagation, as well as the environmental culture conditions, present serious challenges to genome maintenance. Recent work has been focused on potential means to alleviate the genomic insults experienced by PSCs, and to detect them as soon as they arise, in order to prevent the detrimental consequences of these genomic aberrations on PSC application in basic research and regenerative medicine.
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Affiliation(s)
- Uri Weissbein
- Stem Cell Unit, Department of Genetics, Silberman Institute of Life Sciences, The Hebrew University, Jerusalem 91904, Israel
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Schatten H, Sun QY. Posttranslationally modified tubulins and other cytoskeletal proteins: their role in gametogenesis, oocyte maturation, fertilization and Pre-implantation embryo development. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 759:57-87. [PMID: 25030760 DOI: 10.1007/978-1-4939-0817-2_4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The cytoskeleton, mainly consisting of microtubules, intermediate filaments and microfilaments, along with cytoskeleton associated and interconnecting proteins as well as the centrosome, plays enormously important roles in all stages of embryogenesis and undergoes significant changes to accommodate a diversity of cellular functions during gametogenesis, oocyte maturation, fertilization and pre-implantation embryo development. The varied functions of the cytoskeleton can be accomplished on many different levels, among which are a diversity of different posttranslational modifications (PTMs), chemical modifications that regulate activity, localization and interactions with other cellular molecules. PTMs of the cytoskeleton, including phosphorylation, glycosylation, ubiquitination, detyrosination/tyrosination, (poly)glutamylation and (poly)glycylation, acetylation, sumoylation, and palmitoylation, will be addressed in this chapter. Focus will be on (1) Microtubules, microtubule organizing centers (centrosomes), intermediate filaments, microfilaments and their PTMs; (2) Cytoskeletal functions and cytoskeletal PTMs during gametogenesis and oocyte maturation; and (3) Cytoskeletal functions and cytoskeletal PTMs during fertilization and pre-implantation embryo development.
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Affiliation(s)
- Heide Schatten
- Department of Veterinary Pathobiology, University of Missouri, 1600 E Rollins Street, Columbia, MO, 65211, USA,
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47
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Abstract
Cilia and flagella are surface-exposed, finger-like organelles whose core consists of a microtubule (MT)-based axoneme that grows from a modified centriole, the basal body. Cilia are found on the surface of many eukaryotic cells and play important roles in cell motility and in coordinating a variety of signaling pathways during growth, development, and tissue homeostasis. Defective cilia have been linked to a number of developmental disorders and diseases, collectively called ciliopathies. Cilia are dynamic organelles that assemble and disassemble in tight coordination with the cell cycle. In most cells, cilia are assembled during growth arrest in a multistep process involving interaction of vesicles with appendages present on the distal end of mature centrioles, and addition of tubulin and other building blocks to the distal tip of the basal body and growing axoneme; these building blocks are sorted through a region at the cilium base known as the ciliary necklace, and then transported via intraflagellar transport (IFT) along the axoneme toward the tip for assembly. After assembly, the cilium frequently continues to turn over and incorporate tubulin at its distal end in an IFT-dependent manner. Prior to cell division, the cilia are usually resorbed to liberate centrosomes for mitotic spindle pole formation. Here, we present an overview of the main cytoskeletal structures associated with cilia and centrioles with emphasis on the MT-associated appendages, fibers, and filaments at the cilium base and tip. The composition and possible functions of these structures are discussed in relation to cilia assembly, disassembly, and length regulation.
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Affiliation(s)
- Lotte B Pedersen
- Department of Biology, University of Copenhagen, Copenhagen, Denmark.
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Takahashi T, Igarashi H, Amita M, Hara S, Matsuo K, Kurachi H. Molecular mechanism of poor embryo development in postovulatory aged oocytes: mini review. J Obstet Gynaecol Res 2013; 39:1431-9. [PMID: 23876057 DOI: 10.1111/jog.12111] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Accepted: 02/27/2013] [Indexed: 11/29/2022]
Abstract
Oocyte quality is a key factor in determining embryo development; however, we have a poor understanding of what constitutes oocyte quality or the mechanisms governing it. Postovulatory aging of oocytes that have not been fertilized for a prolonged time after ovulation is known to significantly impair oocyte quality and subsequent embryo development after fertilization. Embryos derived from postovulatory-aged oocytes are prone to undergo apoptosis due to the decreased Bcl-2 expression. Postovulatory aging of oocytes changes the patterns of Ca(2+) oscillations at fertilization as a result of impaired Ca(2+) regulation in the endoplasmic reticulum. Moreover, postovulatory aging of oocytes impairs mitochondrial adenosine triphosphate production as a result of increasing oxidative stresses. Oxidative stresses also affect intracellular Ca(2+) regulation and impair embryo development after fertilization. Collectively, the mechanism of postovulatory oocyte aging might be involved in reactive oxygen species-induced mitochondrial injury followed by abnormal intracellular Ca(2+) regulation in the endoplasmic reticulum.
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Affiliation(s)
- Toshifumi Takahashi
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata, Japan
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Mbom BC, Nelson WJ, Barth A. β-catenin at the centrosome: discrete pools of β-catenin communicate during mitosis and may co-ordinate centrosome functions and cell cycle progression. Bioessays 2013; 35:804-9. [PMID: 23804296 DOI: 10.1002/bies.201300045] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Beta-catenin is a multifunctional protein with critical roles in cell-cell adhesion, Wnt-signaling and the centrosome cycle. Whereas the roles of β-catenin in cell-cell adhesion and Wnt-signaling have been studied extensively, the mechanism(s) involving β-catenin in centrosome functions are poorly understood. β-Catenin localizes to centrosomes and promotes mitotic progression. NIMA-related protein kinase 2 (Nek2), which stimulates centrosome separation, binds to and phosphorylates β-catenin. β-Catenin interacting proteins involved in Wnt signaling such as adenomatous polyposis coli, Axin, and GSK3β, are also localized at centrosomes and play roles in promoting mitotic progression. Additionally, proteins associated with cell-cell adhesion sites, such as dynein, regulate mitotic spindle positioning. These roles of proteins at the cell cortex and Wnt signaling that involve β-catenin indicate a cross-talk between different sub-cellular sites in the cell at mitosis, and that different pools of β-catenin may co-ordinate centrosome functions and cell cycle progression.
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Affiliation(s)
- Bertrade C Mbom
- Department of Biology, Stanford University, Stanford, CA, USA
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50
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Wang G, Chen Q, Zhang X, Zhang B, Zhuo X, Liu J, Jiang Q, Zhang C. PCM1 recruits Plk1 to the pericentriolar matrix to promote primary cilia disassembly before mitotic entry. J Cell Sci 2013; 126:1355-65. [PMID: 23345402 DOI: 10.1242/jcs.114918] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Primary cilia, which emanate from the cell surface, exhibit assembly and disassembly dynamics along the progression of the cell cycle. However, the mechanism that links ciliary dynamics and cell cycle regulation remains elusive. In the present study, we report that Polo-like kinase 1 (Plk1), one of the key cell cycle regulators, which regulate centrosome maturation, bipolar spindle assembly and cytokinesis, acts as a pivotal player that connects ciliary dynamics and cell cycle regulation. We found that the kinase activity of centrosome enriched Plk1 is required for primary cilia disassembly before mitotic entry, wherein Plk1 interacts with and activates histone deacetylase 6 (HDAC6) to promote ciliary deacetylation and resorption. Furthermore, we showed that pericentriolar material 1 (PCM1) acts upstream of Plk1 and recruits the kinase to pericentriolar matrix (PCM) in a dynein-dynactin complex-dependent manner. This process coincides with the primary cilia disassembly dynamics at the onset of mitosis, as depletion of PCM1 by shRNA dramatically disrupted the pericentriolar accumulation of Plk1. Notably, the interaction between PCM1 and Plk1 is phosphorylation dependent, and CDK1 functions as the priming kinase to facilitate the interaction. Our data suggest a mechanism whereby the recruitment of Plk1 to pericentriolar matrix by PCM1 plays a pivotal role in the regulation of primary cilia disassembly before mitotic entry. Thus, the regulation of ciliary dynamics and cell proliferation share some common regulators.
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Affiliation(s)
- Gang Wang
- MOE Key Laboratory of Cell Proliferation and Differentiation and State Key Laboratory of Biomembrane and Membrane Biotechnology, College of Life Sciences, Peking University, Beijing 100871, China
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