1
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Begar E, Seyrek E, Firat-Karalar EN. Navigating centriolar satellites: the role of PCM1 in cellular and organismal processes. FEBS J 2024. [PMID: 38825736 DOI: 10.1111/febs.17194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/20/2024] [Accepted: 05/22/2024] [Indexed: 06/04/2024]
Abstract
Centriolar satellites are ubiquitous membrane-less organelles that play critical roles in numerous cellular and organismal processes. They were initially discovered through electron microscopy as cytoplasmic granules surrounding centrosomes in vertebrate cells. These structures remained enigmatic until the identification of pericentriolar material 1 protein (PCM1) as their molecular marker, which has enabled their in-depth characterization. Recently, centriolar satellites have come into the spotlight due to their links to developmental and neurodegenerative disorders. This review presents a comprehensive summary of the major advances in centriolar satellite biology, with a focus on studies that investigated their biology associated with the essential scaffolding protein PCM1. We begin by exploring the molecular, cellular, and biochemical properties of centriolar satellites, laying the groundwork for a deeper understanding of their functions and mechanisms at both cellular and organismal levels. We then examine the implications of their dysregulation in various diseases, particularly highlighting their emerging roles in neurodegenerative and developmental disorders, as revealed by organismal models of PCM1. We conclude by discussing the current state of knowledge and posing questions about the adaptable nature of these organelles, thereby setting the stage for future research.
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Affiliation(s)
- Efe Begar
- Department of Molecular Biology and Genetics, Koç University, Istanbul, Turkey
| | - Ece Seyrek
- Department of Molecular Biology and Genetics, Koç University, Istanbul, Turkey
| | - Elif Nur Firat-Karalar
- Department of Molecular Biology and Genetics, Koç University, Istanbul, Turkey
- School of Medicine, Koç University, Istanbul, Turkey
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2
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Renaud CC, Nicolau CA, Maghe C, Trillet K, Jardine J, Escot S, David N, Gavard J, Bidère N. Necrosulfonamide causes oxidation of PCM1 and impairs ciliogenesis and autophagy. iScience 2024; 27:109580. [PMID: 38600973 PMCID: PMC11004361 DOI: 10.1016/j.isci.2024.109580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 01/25/2024] [Accepted: 03/25/2024] [Indexed: 04/12/2024] Open
Abstract
Centriolar satellites are high-order assemblies, scaffolded by the protein PCM1, that gravitate as particles around the centrosome and play pivotal roles in fundamental cellular processes notably ciliogenesis and autophagy. Despite stringent control mechanisms involving phosphorylation and ubiquitination, the landscape of post-translational modifications shaping these structures remains elusive. Here, we report that necrosulfonamide (NSA), a small molecule known for binding and inactivating the pivotal effector of cell death by necroptosis MLKL, intersects with centriolar satellites, ciliogenesis, and autophagy independently of MLKL. NSA functions as a potent redox cycler and triggers the oxidation and aggregation of PCM1 alongside select partners, while minimally impacting the overall distribution of centriolar satellites. Additionally, NSA-mediated ROS production disrupts ciliogenesis and leads to the accumulation of autophagy markers, partially alleviated by PCM1 deletion. Together, these results identify PCM1 as a redox sensor protein and provide new insights into the interplay between centriolar satellites and autophagy.
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Affiliation(s)
- Clotilde C.N. Renaud
- Team SOAP, CRCINA, Nantes University, INSERM, CNRS, Université d’Angers, Nantes, France
- Equipe Labellisée Ligue Contre le Cancer, Paris, France
| | - Carolina Alves Nicolau
- Team SOAP, CRCINA, Nantes University, INSERM, CNRS, Université d’Angers, Nantes, France
- Equipe Labellisée Ligue Contre le Cancer, Paris, France
| | - Clément Maghe
- Team SOAP, CRCINA, Nantes University, INSERM, CNRS, Université d’Angers, Nantes, France
- Equipe Labellisée Ligue Contre le Cancer, Paris, France
| | - Kilian Trillet
- Team SOAP, CRCINA, Nantes University, INSERM, CNRS, Université d’Angers, Nantes, France
- Equipe Labellisée Ligue Contre le Cancer, Paris, France
| | - Jane Jardine
- Team SOAP, CRCINA, Nantes University, INSERM, CNRS, Université d’Angers, Nantes, France
- Equipe Labellisée Ligue Contre le Cancer, Paris, France
| | - Sophie Escot
- Laboratoire d’Optique et de Biosciences LOB, Ecole Polytechnique, Palaiseau, France
| | - Nicolas David
- Laboratoire d’Optique et de Biosciences LOB, Ecole Polytechnique, Palaiseau, France
| | - Julie Gavard
- Team SOAP, CRCINA, Nantes University, INSERM, CNRS, Université d’Angers, Nantes, France
- Equipe Labellisée Ligue Contre le Cancer, Paris, France
- Institut de Cancérologie de l’Ouest (ICO), Saint-Herblain, France
| | - Nicolas Bidère
- Team SOAP, CRCINA, Nantes University, INSERM, CNRS, Université d’Angers, Nantes, France
- Equipe Labellisée Ligue Contre le Cancer, Paris, France
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3
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Vicente JJ, Wagenbach M, Decarreau J, Zelter A, MacCoss MJ, Davis TN, Wordeman L. The kinesin motor Kif9 regulates centriolar satellite positioning and mitotic progression. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.03.587821. [PMID: 38617353 PMCID: PMC11014612 DOI: 10.1101/2024.04.03.587821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Centrosomes are the principal microtubule-organizing centers of the cell and play an essential role in mitotic spindle function. Centrosome biogenesis is achieved by strict control of protein acquisition and phosphorylation prior to mitosis. Defects in this process promote fragmentation of pericentriolar material culminating in multipolar spindles and chromosome missegregation. Centriolar satellites, membrane-less aggrupations of proteins involved in the trafficking of proteins toward and away from the centrosome, are thought to contribute to centrosome biogenesis. Here we show that the microtubule plus-end directed kinesin motor Kif9 localizes to centriolar satellites and regulates their pericentrosomal localization during interphase. Lack of Kif9 leads to aggregation of satellites closer to the centrosome and increased centrosomal protein degradation that disrupts centrosome maturation and results in chromosome congression and segregation defects during mitosis. Our data reveal roles for Kif9 and centriolar satellites in the regulation of cellular proteostasis and mitosis.
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Sweeney KM, Chantarawong S, Barbieri EM, Cajka G, Liu M, Spruce L, Fazelinia H, Portz B, Copley K, Lapidot T, Duhamel L, Greenwald P, Saida N, Shalgi R, Shorter J, Shalem O. CRISPR screen for protein inclusion formation uncovers a role for SRRD in the regulation of intermediate filament dynamics and aggresome assembly. PLoS Genet 2024; 20:e1011138. [PMID: 38315730 PMCID: PMC10868785 DOI: 10.1371/journal.pgen.1011138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 02/15/2024] [Accepted: 01/15/2024] [Indexed: 02/07/2024] Open
Abstract
The presence of large protein inclusions is a hallmark of neurodegeneration, and yet the precise molecular factors that contribute to their formation remain poorly understood. Screens using aggregation-prone proteins have commonly relied on downstream toxicity as a readout rather than the direct formation of aggregates. Here, we combined a genome-wide CRISPR knockout screen with Pulse Shape Analysis, a FACS-based method for inclusion detection, to identify direct modifiers of TDP-43 aggregation in human cells. Our screen revealed both canonical and novel proteostasis genes, and unearthed SRRD, a poorly characterized protein, as a top regulator of protein inclusion formation. APEX biotin labeling reveals that SRRD resides in proximity to proteins that are involved in the formation and breakage of disulfide bonds and to intermediate filaments, suggesting a role in regulation of the spatial dynamics of the intermediate filament network. Indeed, loss of SRRD results in aberrant intermediate filament fibrils and the impaired formation of aggresomes, including blunted vimentin cage structure, during proteotoxic stress. Interestingly, SRRD also localizes to aggresomes and unfolded proteins, and rescues proteotoxicity in yeast whereby its N-terminal low complexity domain is sufficient to induce this affect. Altogether this suggests an unanticipated and broad role for SRRD in cytoskeletal organization and cellular proteostasis.
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Affiliation(s)
- Katelyn M. Sweeney
- Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Sapanna Chantarawong
- Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Edward M. Barbieri
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Greg Cajka
- Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Matthew Liu
- Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Lynn Spruce
- Proteomics Core Facility, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Hossein Fazelinia
- Proteomics Core Facility, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
- Department of Biomedical and Health Informatics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Bede Portz
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Katie Copley
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Tomer Lapidot
- Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Lauren Duhamel
- Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Phoebe Greenwald
- Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Naseeb Saida
- Department of Biochemistry, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Reut Shalgi
- Department of Biochemistry, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - James Shorter
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Ophir Shalem
- Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
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5
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Griffin EN, Jucius T, Sim SE, Harris BS, Heinz S, Ackerman SL. RREB1 regulates neuronal proteostasis and the microtubule network. SCIENCE ADVANCES 2024; 10:eadh3929. [PMID: 38198538 PMCID: PMC10780896 DOI: 10.1126/sciadv.adh3929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 12/12/2023] [Indexed: 01/12/2024]
Abstract
Transcription factors play vital roles in neuron development; however, little is known about the role of these proteins in maintaining neuronal homeostasis. Here, we show that the transcription factor RREB1 (Ras-responsive element-binding protein 1) is essential for neuron survival in the mammalian brain. A spontaneous mouse mutation causing loss of a nervous system-enriched Rreb1 transcript is associated with progressive loss of cerebellar Purkinje cells and ataxia. Analysis of chromatin immunoprecipitation and sequencing, along with RNA sequencing data revealed dysregulation of RREB1 targets associated with the microtubule cytoskeleton. In agreement with the known role of microtubules in dendritic development, dendritic complexity was disrupted in Rreb1-deficient neurons. Analysis of sequencing data also suggested that RREB1 plays a role in the endomembrane system. Mutant Purkinje cells had fewer numbers of autophagosomes and lysosomes and contained P62- and ubiquitin-positive inclusions. Together, these studies demonstrate that RREB1 functions to maintain the microtubule network and proteostasis in mammalian neurons.
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Affiliation(s)
- Emily N. Griffin
- Howard Hughes Medical Institute, Department of Cellular and Molecular Medicine, Department of Neurobiology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Thomas Jucius
- Howard Hughes Medical Institute, Department of Cellular and Molecular Medicine, Department of Neurobiology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Su-Eon Sim
- Howard Hughes Medical Institute, Department of Cellular and Molecular Medicine, Department of Neurobiology, University of California, San Diego, La Jolla, CA 92093, USA
| | | | - Sven Heinz
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Susan L. Ackerman
- Howard Hughes Medical Institute, Department of Cellular and Molecular Medicine, Department of Neurobiology, University of California, San Diego, La Jolla, CA 92093, USA
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6
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Renaud CCN, Trillet K, Jardine J, Merlet L, Renoult O, Laurent-Blond M, Catinaud Z, Pecqueur C, Gavard J, Bidère N. The centrosomal protein 131 participates in the regulation of mitochondrial apoptosis. Commun Biol 2023; 6:1271. [PMID: 38102401 PMCID: PMC10724242 DOI: 10.1038/s42003-023-05676-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 12/05/2023] [Indexed: 12/17/2023] Open
Abstract
Centriolar satellites are multiprotein aggregates that orbit the centrosome and govern centrosome homeostasis and primary cilia formation. In contrast to the scaffold PCM1, which nucleates centriolar satellites and has been linked to microtubule dynamics, autophagy, and intracellular trafficking, the functions of its interactant CEP131 beyond ciliogenesis remain unclear. Using a knockout strategy in a non-ciliary T-cell line, we report that, although dispensable for centriolar satellite assembly, CEP131 participates in optimal tubulin glycylation and polyglutamylation, and microtubule regrowth. Our unsupervised label-free proteomic analysis by quantitative mass spectrometry further uncovered mitochondrial and apoptotic signatures. CEP131-deficient cells showed an elongated mitochondrial network. Upon cell death inducers targeting mitochondria, knockout cells displayed delayed cytochrome c release from mitochondria, subsequent caspase activation, and apoptosis. This mitochondrial permeabilization defect was intrinsic, and replicable in vitro with isolated organelles. These findings extend CEP131 functions to life-and-death decisions and propose ways to interfere with mitochondrial apoptosis.
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Affiliation(s)
- Clotilde C N Renaud
- Team SOAP, CRCI2NA, Nantes University, INSERM, CNRS, Université d'Angers, Nantes, France
- Equipe Labellisée Ligue Contre le Cancer, Nantes, France
| | - Kilian Trillet
- Team SOAP, CRCI2NA, Nantes University, INSERM, CNRS, Université d'Angers, Nantes, France
- Equipe Labellisée Ligue Contre le Cancer, Nantes, France
| | - Jane Jardine
- Team SOAP, CRCI2NA, Nantes University, INSERM, CNRS, Université d'Angers, Nantes, France
- Equipe Labellisée Ligue Contre le Cancer, Nantes, France
| | - Laura Merlet
- Team SOAP, CRCI2NA, Nantes University, INSERM, CNRS, Université d'Angers, Nantes, France
- Equipe Labellisée Ligue Contre le Cancer, Nantes, France
| | - Ophélie Renoult
- Team PETRY, CRCI2NA, Nantes University, INSERM, CNRS, Université d'Angers, Nantes, France
| | - Mélanie Laurent-Blond
- Team PETRY, CRCI2NA, Nantes University, INSERM, CNRS, Université d'Angers, Nantes, France
| | - Zoé Catinaud
- Team SOAP, CRCI2NA, Nantes University, INSERM, CNRS, Université d'Angers, Nantes, France
- Equipe Labellisée Ligue Contre le Cancer, Nantes, France
| | - Claire Pecqueur
- Team PETRY, CRCI2NA, Nantes University, INSERM, CNRS, Université d'Angers, Nantes, France
| | - Julie Gavard
- Team SOAP, CRCI2NA, Nantes University, INSERM, CNRS, Université d'Angers, Nantes, France
- Equipe Labellisée Ligue Contre le Cancer, Nantes, France
- Institut de Cancérologie de l'Ouest (ICO), Saint-Herblain, France
| | - Nicolas Bidère
- Team SOAP, CRCI2NA, Nantes University, INSERM, CNRS, Université d'Angers, Nantes, France.
- Equipe Labellisée Ligue Contre le Cancer, Nantes, France.
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7
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Carden S, Vitiello E, Rosa E Silva I, Holder J, Quarantotti V, Kishore K, Roamio Franklin VN, D'Santos C, Ochi T, van Breugel M, Gergely F. Proteomic profiling of centrosomes across multiple mammalian cell and tissue types by an affinity capture method. Dev Cell 2023; 58:2393-2410.e9. [PMID: 37852252 DOI: 10.1016/j.devcel.2023.09.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 07/27/2023] [Accepted: 09/25/2023] [Indexed: 10/20/2023]
Abstract
Centrosomes are the major microtubule-organizing centers in animals and play fundamental roles in many cellular processes. Understanding how their composition varies across diverse cell types and how it is altered in disease are major unresolved questions, yet currently available centrosome isolation protocols are cumbersome and time-consuming, and they lack scalability. Here, we report the development of centrosome affinity capture (CAPture)-mass spectrometry (MS), a powerful one-step purification method to obtain high-resolution centrosome proteomes from mammalian cells. Utilizing a synthetic peptide derived from CCDC61 protein, CAPture specifically isolates intact centrosomes. Importantly, as a bead-based affinity method, it enables rapid sample processing and multiplexing unlike conventional approaches. Our study demonstrates the power of CAPture-MS to elucidate cell-type-dependent heterogeneity in centrosome composition, dissect hierarchical interactions, and identify previously unknown centrosome components. Overall, CAPture-MS represents a transformative tool to unveil temporal, regulatory, cell-type- and tissue-specific changes in centrosome proteomes in health and disease.
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Affiliation(s)
- Sarah Carden
- CRUK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK
| | - Elisa Vitiello
- Department of Biochemistry, University of Oxford, Oxford, UK
| | | | - James Holder
- Department of Biochemistry, University of Oxford, Oxford, UK
| | - Valentina Quarantotti
- CRUK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK
| | - Kamal Kishore
- CRUK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK
| | | | - Clive D'Santos
- CRUK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK
| | - Takashi Ochi
- MRC Laboratory of Molecular Biology, Cambridge, UK; The Astbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, University of Leeds, Leeds, UK.
| | - Mark van Breugel
- MRC Laboratory of Molecular Biology, Cambridge, UK; School of Biological & Behavioural Sciences, Queen Mary University of London, London, UK.
| | - Fanni Gergely
- CRUK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK; Department of Biochemistry, University of Oxford, Oxford, UK.
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8
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Huang Y, Gu L, Li GM. Heat shock protein DNAJA2 regulates transcription-coupled repair by triggering CSB degradation via chaperone-mediated autophagy. Cell Discov 2023; 9:107. [PMID: 37907457 PMCID: PMC10618452 DOI: 10.1038/s41421-023-00601-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/01/2023] [Indexed: 11/02/2023] Open
Abstract
Transcription-coupled nucleotide excision repair (TC-NER) is an important genome maintenance system that preferentially removes DNA lesions on the transcribed strand of actively transcribed genes, including non-coding genes. TC-NER involves lesion recognition by the initiation complex consisting of RNA polymerase II (Pol II) and Cockayne syndrome group B (CSB), followed by NER-catalyzed lesion removal. However, the efficient lesion removal requires the initiation complex to yield the right of way to the excision machinery, and how this occurs in a timely manner is unknown. Here we show that heat shock protein DNAJA2 facilitates the HSC70 chaperone-mediated autophagy (CMA) to degrade CSB during TC-NER. DNAJA2 interacts with and enables HSC70 to recognize sumoylated CSB. This triggers the removal of both CSB and Pol II from the lesion site in a manner dependent on lysosome receptor LAMP2A. Defects in DNAJA2, HSC70 or LAMP2A abolish CSB degradation and block TC-NER. Our findings discover DNAJA2-mediated CMA as a critical regulator of TC-NER, implicating the DNAJA2-HSC70-CMA axis factors in genome maintenance.
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Affiliation(s)
- Yaping Huang
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Liya Gu
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Guo-Min Li
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
- Chinese Institutes for Medical Research, Beijing, China.
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9
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Bodin A, Greibill L, Gouju J, Letournel F, Pozzi S, Julien JP, Renaud L, Bohl D, Millecamps S, Verny C, Cassereau J, Lenaers G, Chevrollier A, Tassin AM, Codron P. Transactive response DNA-binding protein 43 is enriched at the centrosome in human cells. Brain 2023; 146:3624-3633. [PMID: 37410912 PMCID: PMC10473568 DOI: 10.1093/brain/awad228] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 05/14/2023] [Accepted: 06/03/2023] [Indexed: 07/08/2023] Open
Abstract
The centrosome, as the main microtubule organizing centre, plays key roles in cell polarity, genome stability and ciliogenesis. The recent identification of ribosomes, RNA-binding proteins and transcripts at the centrosome suggests local protein synthesis. In this context, we hypothesized that TDP-43, a highly conserved RNA binding protein involved in the pathophysiology of amyotrophic lateral sclerosis and frontotemporal lobar degeneration, could be enriched at this organelle. Using dedicated high magnification sub-diffraction microscopy on human cells, we discovered a novel localization of TDP-43 at the centrosome during all phases of the cell cycle. These results were confirmed on purified centrosomes by western blot and immunofluorescence microscopy. In addition, the co-localization of TDP-43 and pericentrin suggested a pericentriolar enrichment of the protein, leading us to hypothesize that TDP-43 might interact with local mRNAs and proteins. Supporting this hypothesis, we found four conserved centrosomal mRNAs and 16 centrosomal proteins identified as direct TDP-43 interactors. More strikingly, all the 16 proteins are implicated in the pathophysiology of TDP-43 proteinopathies, suggesting that TDP-43 dysfunction in this organelle contributes to neurodegeneration. This first description of TDP-43 centrosomal enrichment paves the way for a more comprehensive understanding of TDP-43 physiology and pathology.
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Affiliation(s)
- Alexia Bodin
- Univ Angers, Equipe MitoLab, Unité MitoVasc, Inserm U1083, CNRS 6015, SFR ICAT, 49100 Angers, France
- Neurobiology and neuropathology, University-Hospital of Angers, 49933 Angers, France
| | - Logan Greibill
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris Sud, Université Paris-Saclay, 91190 Gif sur Yvette, France
| | - Julien Gouju
- Neurobiology and neuropathology, University-Hospital of Angers, 49933 Angers, France
| | - Franck Letournel
- Neurobiology and neuropathology, University-Hospital of Angers, 49933 Angers, France
| | - Silvia Pozzi
- Department of Psychiatry and Neuroscience, University of Laval, Québec City, Qc G1V 0A6, Canada
- CERVO Brain Research Centre, Québec, Qc G1E 1T2, Canada
| | - Jean-Pierre Julien
- Department of Psychiatry and Neuroscience, University of Laval, Québec City, Qc G1V 0A6, Canada
- CERVO Brain Research Centre, Québec, Qc G1E 1T2, Canada
| | - Laurence Renaud
- Département de Neurosciences, Université de Montréal, Montréal, Qc H3C 3J7, Canada
- Groupe de recherche sur le système nerveux central, Université de Montréal, Montréal, Qc H3C 3J7, Canada
| | - Delphine Bohl
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, APHP, Hôpital de la Pitié Salpêtrière, 75013 Paris, France
| | - Stéphanie Millecamps
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, APHP, Hôpital de la Pitié Salpêtrière, 75013 Paris, France
| | - Christophe Verny
- Univ Angers, Equipe MitoLab, Unité MitoVasc, Inserm U1083, CNRS 6015, SFR ICAT, 49100 Angers, France
- Department of Neurology, Amyotrophic Lateral Sclerosis Center, University-Hospital of Angers, 49933 Angers, France
| | - Julien Cassereau
- Univ Angers, Equipe MitoLab, Unité MitoVasc, Inserm U1083, CNRS 6015, SFR ICAT, 49100 Angers, France
- Department of Neurology, Amyotrophic Lateral Sclerosis Center, University-Hospital of Angers, 49933 Angers, France
| | - Guy Lenaers
- Univ Angers, Equipe MitoLab, Unité MitoVasc, Inserm U1083, CNRS 6015, SFR ICAT, 49100 Angers, France
- Department of Neurology, Amyotrophic Lateral Sclerosis Center, University-Hospital of Angers, 49933 Angers, France
| | - Arnaud Chevrollier
- Univ Angers, Equipe MitoLab, Unité MitoVasc, Inserm U1083, CNRS 6015, SFR ICAT, 49100 Angers, France
| | - Anne-Marie Tassin
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris Sud, Université Paris-Saclay, 91190 Gif sur Yvette, France
| | - Philippe Codron
- Univ Angers, Equipe MitoLab, Unité MitoVasc, Inserm U1083, CNRS 6015, SFR ICAT, 49100 Angers, France
- Neurobiology and neuropathology, University-Hospital of Angers, 49933 Angers, France
- Department of Neurology, Amyotrophic Lateral Sclerosis Center, University-Hospital of Angers, 49933 Angers, France
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10
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Huang Y, Lu C, Wang H, Gu L, Fu YX, Li GM. DNAJA2 deficiency activates cGAS-STING pathway via the induction of aberrant mitosis and chromosome instability. Nat Commun 2023; 14:5246. [PMID: 37640708 PMCID: PMC10462666 DOI: 10.1038/s41467-023-40952-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 08/17/2023] [Indexed: 08/31/2023] Open
Abstract
Molecular chaperone HSP70s are attractive targets for cancer therapy, but their substrate broadness and functional non-specificity have limited their role in therapeutical success. Functioning as HSP70's cochaperones, HSP40s determine the client specificity of HSP70s, and could be better targets for cancer therapy. Here we show that tumors defective in HSP40 member DNAJA2 are benefitted from immune-checkpoint blockade (ICB) therapy. Mechanistically, DNAJA2 maintains centrosome homeostasis by timely degrading key centriolar satellite proteins PCM1 and CEP290 via HSC70 chaperone-mediated autophagy (CMA). Tumor cells depleted of DNAJA2 or CMA factor LAMP2A exhibit elevated levels of centriolar satellite proteins, which causes aberrant mitosis characterized by abnormal spindles, chromosome missegregation and micronuclei formation. This activates the cGAS-STING pathway to enhance ICB therapy response in tumors derived from DNAJA2-deficient cells. Our study reveals a role for DNAJA2 to regulate mitotic division and chromosome stability and suggests DNAJA2 as a potential target to enhance cancer immunotherapy, thereby providing strategies to advance HSPs-based cancer therapy.
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Affiliation(s)
- Yaping Huang
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Changzheng Lu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Institute of Cancer Research, Shenzhen Bay Laboratory, Shenzhen, China
| | - Hanzhi Wang
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Liya Gu
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Yang-Xin Fu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
- Department of Basic Medical Sciences, Tsinghua University School of Medicine, Beijing, China.
| | - Guo-Min Li
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
- Chinese Institutes for Medical Research, Beijing, China.
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11
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Ma B, Ju A, Zhang S, An Q, Xu S, Liu J, Yu L, Fu Y, Luo Y. Albumosomes formed by cytoplasmic pre-folding albumin maintain mitochondrial homeostasis and inhibit nonalcoholic fatty liver disease. Signal Transduct Target Ther 2023; 8:229. [PMID: 37321990 PMCID: PMC10272166 DOI: 10.1038/s41392-023-01437-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 03/01/2023] [Accepted: 04/06/2023] [Indexed: 06/17/2023] Open
Abstract
Hepatic mitochondrial dysfunction contributes to the progression of nonalcoholic fatty liver disease (NAFLD). However, the factors that maintain mitochondrial homeostasis, especially in hepatocytes, are largely unknown. Hepatocytes synthesize various high-level plasma proteins, among which albumin is most abundant. In this study, we found that pre-folding albumin in the cytoplasm is completely different from folded albumin in the serum. Mechanistically, endogenous pre-folding albumin undergoes phase transition in the cytoplasm to form a shell-like spherical structure, which we call the "albumosome". Albumosomes interact with and trap pre-folding carnitine palmitoyltransferase 2 (CPT2) in the cytoplasm. Albumosomes control the excessive sorting of CPT2 to the mitochondria under high-fat-diet-induced stress conditions; in this way, albumosomes maintain mitochondrial homeostasis from exhaustion. Physiologically, albumosomes accumulate in hepatocytes during murine aging and protect the livers of aged mice from mitochondrial damage and fat deposition. Morphologically, mature albumosomes have a mean diameter of 4μm and are surrounded by heat shock protein Hsp90 and Hsp70 family proteins, forming a larger shell. The Hsp90 inhibitor 17-AAG promotes hepatic albumosomal accumulation in vitro and in vivo, through which suppressing the progression of NAFLD in mice.
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Affiliation(s)
- Boyuan Ma
- School of Life Sciences, Tsinghua University, 100084, Beijing, China
- The National Engineering Research Center for Protein Technology, Tsinghua University, 100084, Beijing, China
- Beijing Key Laboratory for Protein Therapeutics, Tsinghua University, 100084, Beijing, China
| | - Anji Ju
- School of Life Sciences, Tsinghua University, 100084, Beijing, China
- The National Engineering Research Center for Protein Technology, Tsinghua University, 100084, Beijing, China
- Beijing Key Laboratory for Protein Therapeutics, Tsinghua University, 100084, Beijing, China
| | - Shaosen Zhang
- School of Life Sciences, Tsinghua University, 100084, Beijing, China
- The National Engineering Research Center for Protein Technology, Tsinghua University, 100084, Beijing, China
- Beijing Key Laboratory for Protein Therapeutics, Tsinghua University, 100084, Beijing, China
- Department of Etiology and Carcinogenesis, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China
| | - Qi An
- School of Life Sciences, Tsinghua University, 100084, Beijing, China
- The National Engineering Research Center for Protein Technology, Tsinghua University, 100084, Beijing, China
- Beijing Key Laboratory for Protein Therapeutics, Tsinghua University, 100084, Beijing, China
| | - Siran Xu
- School of Life Sciences, Tsinghua University, 100084, Beijing, China
- The National Engineering Research Center for Protein Technology, Tsinghua University, 100084, Beijing, China
- Beijing Key Laboratory for Protein Therapeutics, Tsinghua University, 100084, Beijing, China
| | - Jie Liu
- School of Life Sciences, Tsinghua University, 100084, Beijing, China
- The National Engineering Research Center for Protein Technology, Tsinghua University, 100084, Beijing, China
- Beijing Key Laboratory for Protein Therapeutics, Tsinghua University, 100084, Beijing, China
- Immunogenetics Laboratory, Shenzhen Blood Center, 518025, Shenzhen, Guangdong, China
| | - Li Yu
- State Key Laboratory of Membrane Biology, Tsinghua University-Peking University Joint Centre for Life Sciences, Beijing Frontier Research Center for Biological Structure, School of Life Sciences, Tsinghua University, 100084, Beijing, China
| | - Yan Fu
- School of Life Sciences, Tsinghua University, 100084, Beijing, China.
- The National Engineering Research Center for Protein Technology, Tsinghua University, 100084, Beijing, China.
- Beijing Key Laboratory for Protein Therapeutics, Tsinghua University, 100084, Beijing, China.
| | - Yongzhang Luo
- School of Life Sciences, Tsinghua University, 100084, Beijing, China.
- The National Engineering Research Center for Protein Technology, Tsinghua University, 100084, Beijing, China.
- Beijing Key Laboratory for Protein Therapeutics, Tsinghua University, 100084, Beijing, China.
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12
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Hall EA, Kumar D, Prosser SL, Yeyati PL, Herranz-Pérez V, García-Verdugo JM, Rose L, McKie L, Dodd DO, Tennant PA, Megaw R, Murphy LC, Ferreira MF, Grimes G, Williams L, Quidwai T, Pelletier L, Reiter JF, Mill P. Centriolar satellites expedite mother centriole remodeling to promote ciliogenesis. eLife 2023; 12:e79299. [PMID: 36790165 PMCID: PMC9998092 DOI: 10.7554/elife.79299] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 02/14/2023] [Indexed: 02/16/2023] Open
Abstract
Centrosomes are orbited by centriolar satellites, dynamic multiprotein assemblies nucleated by Pericentriolar material 1 (PCM1). To study the requirement for centriolar satellites, we generated mice lacking PCM1, a crucial component of satellites. Pcm1-/- mice display partially penetrant perinatal lethality with survivors exhibiting hydrocephalus, oligospermia, and cerebellar hypoplasia, and variably expressive phenotypes such as hydronephrosis. As many of these phenotypes have been observed in human ciliopathies and satellites are implicated in cilia biology, we investigated whether cilia were affected. PCM1 was dispensable for ciliogenesis in many cell types, whereas Pcm1-/- multiciliated ependymal cells and human PCM1-/- retinal pigmented epithelial 1 (RPE1) cells showed reduced ciliogenesis. PCM1-/- RPE1 cells displayed reduced docking of the mother centriole to the ciliary vesicle and removal of CP110 and CEP97 from the distal mother centriole, indicating compromised early ciliogenesis. Similarly, Pcm1-/- ependymal cells exhibited reduced removal of CP110 from basal bodies in vivo. We propose that PCM1 and centriolar satellites facilitate efficient trafficking of proteins to and from centrioles, including the departure of CP110 and CEP97 to initiate ciliogenesis, and that the threshold to trigger ciliogenesis differs between cell types.
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Affiliation(s)
- Emma A Hall
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of EdinburghEdinburghUnited Kingdom
| | - Dhivya Kumar
- Department of Biochemistry and Biophysics, Cardiovascular Research Institute, University of CaliforniaSan FranciscoUnited States
| | - Suzanna L Prosser
- Lunenfeld-Tanenbaum Research Institute, Sinai Health SystemTorontoCanada
| | - Patricia L Yeyati
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of EdinburghEdinburghUnited Kingdom
| | - Vicente Herranz-Pérez
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of ValenciaValenciaSpain
- Predepartamental Unit of Medicine, Jaume I UniversityCastelló de la PlanaSpain
| | | | - Lorraine Rose
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of EdinburghEdinburghUnited Kingdom
| | - Lisa McKie
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of EdinburghEdinburghUnited Kingdom
| | - Daniel O Dodd
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of EdinburghEdinburghUnited Kingdom
| | - Peter A Tennant
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of EdinburghEdinburghUnited Kingdom
| | - Roly Megaw
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of EdinburghEdinburghUnited Kingdom
| | - Laura C Murphy
- Institute of Genetics and Cancer, University of EdinburghEdinburghUnited Kingdom
| | - Marisa F Ferreira
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of EdinburghEdinburghUnited Kingdom
| | - Graeme Grimes
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of EdinburghEdinburghUnited Kingdom
| | - Lucy Williams
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of EdinburghEdinburghUnited Kingdom
| | - Tooba Quidwai
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of EdinburghEdinburghUnited Kingdom
| | - Laurence Pelletier
- Lunenfeld-Tanenbaum Research Institute, Sinai Health SystemTorontoCanada
- Department of Molecular Genetics, University of TorontoUniversity of TorontoCanada
| | - Jeremy F Reiter
- Department of Biochemistry and Biophysics, Cardiovascular Research Institute, University of CaliforniaSan FranciscoUnited States
- Chan Zuckerberg BiohubSan FranciscoUnited States
| | - Pleasantine Mill
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of EdinburghEdinburghUnited Kingdom
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13
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Moreno-Andrés D, Holl K, Antonin W. The second half of mitosis and its implications in cancer biology. Semin Cancer Biol 2023; 88:1-17. [PMID: 36436712 DOI: 10.1016/j.semcancer.2022.11.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/16/2022] [Accepted: 11/21/2022] [Indexed: 11/26/2022]
Abstract
The nucleus undergoes dramatic structural and functional changes during cell division. With the entry into mitosis, in human cells the nuclear envelope breaks down, chromosomes rearrange into rod-like structures which are collected and segregated by the spindle apparatus. While these processes in the first half of mitosis have been intensively studied, much less is known about the second half of mitosis, when a functional nucleus reforms in each of the emerging cells. Here we review our current understanding of mitotic exit and nuclear reformation with spotlights on the links to cancer biology.
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Affiliation(s)
- Daniel Moreno-Andrés
- Institute of Biochemistry and Molecular Cell Biology, Medical School, RWTH Aachen University, Aachen, Germany.
| | - Kristin Holl
- Institute of Biochemistry and Molecular Cell Biology, Medical School, RWTH Aachen University, Aachen, Germany
| | - Wolfram Antonin
- Institute of Biochemistry and Molecular Cell Biology, Medical School, RWTH Aachen University, Aachen, Germany
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14
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Aleman TS, O'Neil EC, Uyhazi KE, Parchinski KM, Santos AJ, Weber ML, Colclough SP, Billek AS, Zhu X, Leroy BP, Bedoukian EC. Fleck-like lesions in CEP290-associated leber congenital amaurosis: a case series. Ophthalmic Genet 2022; 43:824-833. [PMID: 36469661 DOI: 10.1080/13816810.2022.2147960] [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: 12/12/2022]
Abstract
PURPOSE To provide a detailed ophthalmic phenotype of a small cohort of patients with Leber Congenital Amaurosis (LCA) caused by mutations in CEP290 (CEP290-LCA) with a focus on elucidating the origin of yellow-white lesions observed in 30% of patients with this condition. METHODS This is a retrospective review of records of five patients with CEP290-LCA. Patients had comprehensive ophthalmic evaluations. Visual function was assessed with full-field electroretinograms (ffERGs) and full-field sensitivity testing (FST). Multimodal imaging was performed with spectral domain optical coherence tomography (SD-OCT), fundus autofluorescence (FAF) with short- (SW) and near-infrared (NIR) excitation wavelengths. RESULTS All patients showed relative structural preservation of the foveal and near midperipheral retina separated by a pericentral area of photoreceptor loss. Yellow-white, fleck-like lesions in an annular distribution around the near midperiphery co-localized with hyperreflective lesions on SD-OCT. The lesions located between the inner segment ellipsoid signal and the apical retinal pigment epithelium (RPE). The inner retina was normal. Longitudinal observations in one of the patients indicates the abnormalities may represent an intermediate stage in the degenerative process between the near normal appearing retina previously documented in young CEP290-LCA patients and the pigmentary retinopathy observed along the same region in older individuals. CONCLUSIONS We speculate that fleck-like lesions in CEP290-LCA correspond to malformed, rudimentary or degenerated, including shed, photoreceptor outer segments. The topography and possible origin of the abnormalities may inform the planning of evolving genetic therapies for this disease.
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Affiliation(s)
- Tomas S Aleman
- Scheie Eye Institute at the Perelman Center for Advanced Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Center for Advanced Retinal and Ocular Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Erin C O'Neil
- Center for Advanced Retinal and Ocular Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,The Division of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Katherine E Uyhazi
- Scheie Eye Institute at the Perelman Center for Advanced Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Center for Advanced Retinal and Ocular Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kelsey M Parchinski
- Scheie Eye Institute at the Perelman Center for Advanced Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Arlene J Santos
- Scheie Eye Institute at the Perelman Center for Advanced Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Center for Advanced Retinal and Ocular Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Mariejel L Weber
- Scheie Eye Institute at the Perelman Center for Advanced Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Center for Advanced Retinal and Ocular Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Sherice P Colclough
- The Division of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Andrew S Billek
- Scheie Eye Institute at the Perelman Center for Advanced Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Xiaosong Zhu
- The Division of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Bart P Leroy
- The Division of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Department of Head & Skin, Ghent University, Ghent, Belgium.,Department of Ophthalmology, Ghent University Hospital, Ghent, Belgium.,Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Emma C Bedoukian
- The Division of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,The Individualized Medical Genetics Center of the Children's Hospital of Philadelphia, Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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15
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Xie H, Wang X, Jin M, Li L, Zhu J, Kang Y, Chen Z, Sun Y, Zhao C. Cilia regulate meiotic recombination in zebrafish. J Mol Cell Biol 2022; 14:6671532. [PMID: 35981808 PMCID: PMC9764210 DOI: 10.1093/jmcb/mjac049] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/16/2022] [Accepted: 08/15/2022] [Indexed: 01/14/2023] Open
Abstract
Meiosis is essential for evolution and genetic diversity in almost all sexual eukaryotic organisms. The mechanisms of meiotic recombination, such as synapsis, have been extensively investigated. However, it is still unclear whether signals from the cytoplasm or even from outside of the cell can regulate the meiosis process. Cilia are microtubule-based structures that protrude from the cell surface and function as signaling hubs to sense extracellular signals. Here, we reported an unexpected and critical role of cilia during meiotic recombination. During gametogenesis of zebrafish, cilia were specifically present in the prophase stages of both primary spermatocytes and primary oocytes. By developing a germ cell-specific CRISPR/Cas9 system, we demonstrated that germ cell-specific depletion of ciliary genes resulted in compromised double-strand break repair, reduced crossover formation, and increased germ cell apoptosis. Our study reveals a previously undiscovered role for cilia during meiosis and suggests that extracellular signals may regulate meiotic recombination via this particular organelle.
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Affiliation(s)
| | | | - Minjun Jin
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China,Sars-Fang Centre, Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Lanqin Li
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China,Sars-Fang Centre, Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Junwen Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Innovation Academy for Seed Design, Hubei Hongshan Laboratory, Chinese Academy of Sciences, Wuhan 430072, China,College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunsi Kang
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China,Sars-Fang Centre, Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Zhe Chen
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
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16
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Vitiello E, Gergely F. Centrosomes grow aggresomes to clear waste. Nat Cell Biol 2022; 24:408-410. [PMID: 35411087 DOI: 10.1038/s41556-022-00891-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Elisa Vitiello
- Department of Biochemistry, University of Oxford, Oxford, UK
| | - Fanni Gergely
- Department of Biochemistry, University of Oxford, Oxford, UK.
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