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Serra-Bardenys G, Blanco E, Escudero-Iriarte C, Serra-Camprubí Q, Querol J, Pascual-Reguant L, Morancho B, Escorihuela M, Tissera NS, Sabé A, Martín L, Segura-Bayona S, Verde G, Aiese Cigliano R, Millanes-Romero A, Jerónimo C, Cebrià-Costa JP, Nuciforo P, Simonetti S, Viaplana C, Dienstmann R, Oliveira M, Peg V, Stracker TH, Arribas J, Canals F, Villanueva J, Di Croce L, García de Herreros A, Tian TV, Peiró S. LOXL2-mediated chromatin compaction is required to maintain the oncogenic properties of triple-negative breast cancer cells. FEBS J 2024; 291:2423-2448. [PMID: 38451841 DOI: 10.1111/febs.17112] [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: 06/01/2023] [Revised: 01/02/2024] [Accepted: 02/23/2024] [Indexed: 03/09/2024]
Abstract
Oxidation of histone H3 at lysine 4 (H3K4ox) is catalyzed by lysyl oxidase homolog 2 (LOXL2). This histone modification is enriched in heterochromatin in triple-negative breast cancer (TNBC) cells and has been linked to the maintenance of compacted chromatin. However, the molecular mechanism underlying this maintenance is still unknown. Here, we show that LOXL2 interacts with RuvB-Like 1 (RUVBL1), RuvB-Like 2 (RUVBL2), Actin-like protein 6A (ACTL6A), and DNA methyltransferase 1associated protein 1 (DMAP1), a complex involved in the incorporation of the histone variant H2A.Z. Our experiments indicate that this interaction and the active form of RUVBL2 are required to maintain LOXL2-dependent chromatin compaction. Genome-wide experiments showed that H2A.Z, RUVBL2, and H3K4ox colocalize in heterochromatin regions. In the absence of LOXL2 or RUVBL2, global levels of the heterochromatin histone mark H3K9me3 were strongly reduced, and the ATAC-seq signal in the H3K9me3 regions was increased. Finally, we observed that the interplay between these series of events is required to maintain H3K4ox-enriched heterochromatin regions, which in turn is key for maintaining the oncogenic properties of the TNBC cell line tested (MDA-MB-231).
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Affiliation(s)
- Gemma Serra-Bardenys
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
- Institut Bonanova FP Sanitaria, Consorci Mar Parc de Salut de Barcelona, Spain
| | - Enrique Blanco
- Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology, Spain
| | | | | | - Jessica Querol
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Laura Pascual-Reguant
- Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology, Spain
| | | | | | | | - Anna Sabé
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Luna Martín
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | | | - Gaetano Verde
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | | | - Alba Millanes-Romero
- Institute for Research in Biomedicine (IRB Barcelona) and Barcelona Institute of Science and Technology, Spain
| | - Celia Jerónimo
- Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology, Spain
- Institut de Recherches Cliniques de Montréal, Canada
| | | | - Paolo Nuciforo
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Sara Simonetti
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | | | | | - Mafalda Oliveira
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
- Medical Oncology Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Vicente Peg
- Medical Oncology Department, Vall d'Hebron University Hospital, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Oncología (CIBERONC), Barcelona, Spain
- Vall d'Hebron Research Institute (VHIR), Barcelona, Spain
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Travis H Stracker
- Radiation Oncology Branch, National Cancer Institute, Bethesda, MD, USA
| | - Joaquín Arribas
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
- Vall d'Hebron Research Institute (VHIR), Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain
| | - Francesc Canals
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | | | - Luciano Di Croce
- Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Antonio García de Herreros
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain
- Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain
| | - Tian V Tian
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Sandra Peiró
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
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Jostes S, Vardabasso C, Dong J, Carcamo S, Singh R, Phelps R, Meadows A, Grossi E, Hasson D, Bernstein E. H2A.Z chaperones converge on E2F target genes for melanoma cell proliferation. Genes Dev 2024; 38:336-353. [PMID: 38744503 PMCID: PMC11146596 DOI: 10.1101/gad.351318.123] [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: 11/27/2023] [Accepted: 04/29/2024] [Indexed: 05/16/2024]
Abstract
High levels of H2A.Z promote melanoma cell proliferation and correlate with poor prognosis. However, the role of the two distinct H2A.Z histone chaperone complexes SRCAP and P400-TIP60 in melanoma remains unclear. Here, we show that individual subunit depletion of SRCAP, P400, and VPS72 (YL1) results in not only the loss of H2A.Z deposition into chromatin but also a reduction of H4 acetylation in melanoma cells. This loss of H4 acetylation is particularly found at the promoters of cell cycle genes directly bound by H2A.Z and its chaperones, suggesting a coordinated regulation between H2A.Z deposition and H4 acetylation to promote their expression. Knockdown of each of the three subunits downregulates E2F1 and its targets, resulting in a cell cycle arrest akin to H2A.Z depletion. However, unlike H2A.Z deficiency, loss of the shared H2A.Z chaperone subunit YL1 induces apoptosis. Furthermore, YL1 is overexpressed in melanoma tissues, and its upregulation is associated with poor patient outcome. Together, these findings provide a rationale for future targeting of H2A.Z chaperones as an epigenetic strategy for melanoma treatment.
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Affiliation(s)
- Sina Jostes
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Chiara Vardabasso
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Joanna Dong
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Saul Carcamo
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
- Bioinformatics for Next-Generation Sequencing Facility, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Rajendra Singh
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Robert Phelps
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Austin Meadows
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Elena Grossi
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Dan Hasson
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
- Bioinformatics for Next-Generation Sequencing Facility, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Emily Bernstein
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA;
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
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3
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Jostes S, Vardabasso C, Dong J, Carcamo S, Singh R, Phelps R, Meadows A, Hasson D, Bernstein E. H2A.Z chaperones converge on histone H4 acetylation for melanoma cell proliferation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.26.568747. [PMID: 38076914 PMCID: PMC10705243 DOI: 10.1101/2023.11.26.568747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
High levels of H2A.Z promote melanoma cell proliferation and correlate with poor prognosis. However, the role of the two distinct H2A.Z histone chaperone complexes, SRCAP and P400-TIP60, in melanoma remains unclear. Here, we show that individual depletion of SRCAP, P400, and VPS72 (YL1) not only results in loss of H2A.Z deposition into chromatin, but also a striking reduction of H4 acetylation in melanoma cells. This loss of H4 acetylation is found at the promoters of cell cycle genes directly bound by H2A.Z and its chaperones, suggesting a highly coordinated regulation between H2A.Z deposition and H4 acetylation to promote their expression. Knockdown of each of the three subunits downregulates E2F1 and its targets, resulting in a cell cycle arrest akin to H2A.Z depletion. However, unlike H2A.Z deficiency, loss of the shared H2A.Z chaperone subunit YL1 induces apoptosis. Furthermore, YL1 is overexpressed in melanoma tissues, and its upregulation is associated with poor patient outcome. Together, these findings provide a rationale for future targeting of H2A.Z chaperones as an epigenetic strategy for melanoma treatment.
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Affiliation(s)
- Sina Jostes
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Chiara Vardabasso
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Joanna Dong
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Saul Carcamo
- Bioinformatics for Next Generation Sequencing Facility, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Rajendra Singh
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Robert Phelps
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Austin Meadows
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Dan Hasson
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Bioinformatics for Next Generation Sequencing Facility, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Emily Bernstein
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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González J, Bosch-Presegué L, Marazuela-Duque A, Guitart-Solanes A, Espinosa-Alcantud M, Fernandez AF, Brown JP, Ausió J, Vazquez BN, Singh PB, Fraga MF, Vaquero A. A complex interplay between H2A.Z and HP1 isoforms regulates pericentric heterochromatin. Front Cell Dev Biol 2023; 11:1293122. [PMID: 38020886 PMCID: PMC10665487 DOI: 10.3389/fcell.2023.1293122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Pericentric heterochromatin (PCH) plays an essential role in the maintenance of genome integrity and alterations in PCH have been linked to cancer and aging. HP1 α, β, and γ, are hallmarks of constitutive heterochromatin that are thought to promote PCH structure through binding to heterochromatin-specific histone modifications and interaction with a wide range of factors. Among the less understood components of PCH is the histone H2A variant H2A.Z, whose role in the organization and maintenance of PCH is poorly defined. Here we show that there is a complex interplay between H2A.Z and HP1 isoforms in PCH. While the loss of HP1α results in the accumulation of H2A.Z.1 in PCH, which is associated with a significant decrease in its mobile fraction, H2A.Z.1 binds preferentially to HP1β in these regions. Of note, H2A.Z.1 downregulation results in increased heterochromatinization and instability of PCH, reflected by accumulation of the major epigenetic hallmarks of heterochromatin in these regions and increased frequency of chromosome aberrations related to centromeric/pericentromeric defects. Our studies support a role for H2A.Z in genome stability and unveil a key role of H2A.Z in the regulation of heterochromatin-specific epigenetic modifications through a complex interplay with the HP1 isoforms.
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Affiliation(s)
- Jessica González
- Chromatin Biology Laboratory, Josep Carreras Leukaemia Research Institute (IJC), Barcelona, Spain
| | - Laia Bosch-Presegué
- Chromatin Biology Laboratory, Josep Carreras Leukaemia Research Institute (IJC), Barcelona, Spain
- Tissue Repair and Regeneration Laboratory (TR2Lab), Institut de Recerca I Innovació en Ciències de La Vida i de La Salut a La Catalunya Central (IrisCC), Barcelona, Spain
| | - Anna Marazuela-Duque
- Chromatin Biology Laboratory, Josep Carreras Leukaemia Research Institute (IJC), Barcelona, Spain
| | - Anna Guitart-Solanes
- Chromatin Biology Laboratory, Josep Carreras Leukaemia Research Institute (IJC), Barcelona, Spain
| | - María Espinosa-Alcantud
- Chromatin Biology Laboratory, Josep Carreras Leukaemia Research Institute (IJC), Barcelona, Spain
| | - Agustín F. Fernandez
- Nanomaterials and Nanotechnology Research Center (CINN), Spanish National Research Council (CSIC), El Entrego, Spain
- Institute of Oncology of Asturias (IUOPA), University of Oviedo, Oviedo, Spain
- Health Research Institute of the Principality of Asturias (ISPA), Oviedo, Spain
- Spanish Biomedical Research Network in Rare Diseases (CIBERER), Madrid, Spain
| | - Jeremy P. Brown
- Department of Immunology and Inflammation, Imperial College London, Commonwealth Building, The Hammersmith Hospital, London, United Kingdom
| | - Juan Ausió
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | - Berta N. Vazquez
- Chromatin Biology Laboratory, Josep Carreras Leukaemia Research Institute (IJC), Barcelona, Spain
- Cytology and Histology Unit. Department of Cell Biology, Physiology, and Immunology, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Prim B. Singh
- Nazarbayev University School of Medicine, Astana, Kazakhstan
| | - Mario F. Fraga
- Nanomaterials and Nanotechnology Research Center (CINN), Spanish National Research Council (CSIC), El Entrego, Spain
- Institute of Oncology of Asturias (IUOPA), University of Oviedo, Oviedo, Spain
- Health Research Institute of the Principality of Asturias (ISPA), Oviedo, Spain
- Spanish Biomedical Research Network in Rare Diseases (CIBERER), Madrid, Spain
| | - Alejandro Vaquero
- Chromatin Biology Laboratory, Josep Carreras Leukaemia Research Institute (IJC), Barcelona, Spain
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5
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Sijacic P, Holder DH, Willett CG, Foroozani M, Deal RB. Replacement of Arabidopsis H2A.Z with human H2A.Z orthologs reveals extensive functional conservation and limited importance of the N-terminal tail sequence for Arabidopsis development. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.03.565555. [PMID: 37961174 PMCID: PMC10635141 DOI: 10.1101/2023.11.03.565555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
The incorporation of histone variants, distinct paralogs of core histones, into chromatin affects all DNA-templated processes in the cell, including the regulation of transcription. In recent years, much research has been focused on H2A.Z, an evolutionarily conserved H2A variant found in all eukaryotes. In order to investigate the functional conservation of H2A.Z histones during eukaryotic evolution we transformed h2a.z deficient plants with three human H2A.Z proteins to assess their ability to rescue the mutant defects. We discovered that human H2A.Z.1 and H2A.Z.2.1 fully complement the phenotypic abnormalities of h2a.z plants despite the fact that Arabidopsis and human H2A.Z N-terminal tail sequences are quite divergent. In contrast, the brain-specific splice variant H2A.Z.2.2 has a dominant-negative effect in wild-type plants. Furthermore, H2A.Z.1 almost completely re-establishes normal H2A.Z chromatin occupancy in h2a.z plants and restores the transcript levels of more than 84 % of misexpressed genes. Finally, our hypothesis that the N-terminal tail of Arabidopsis H2A.Z is not crucial for its developmental functions was supported by the ability of N-terminal end truncations of Arabidopsis HTA11 to largely rescue the defects of h2a.z mutants.
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Affiliation(s)
- Paja Sijacic
- Department of Biology, Emory University, Atlanta, GA 30322 USA
| | - Dylan H. Holder
- Department of Biology, Emory University, Atlanta, GA 30322 USA
- Graduate Program in Genetics and Molecular Biology, Emory University, Atlanta, GA 30322 USA
| | - Courtney G. Willett
- Department of Biology, Emory University, Atlanta, GA 30322 USA
- Graduate Program in Genetics and Molecular Biology, Emory University, Atlanta, GA 30322 USA
| | | | - Roger B. Deal
- Department of Biology, Emory University, Atlanta, GA 30322 USA
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Haddad-Mashadrizeh A, Mirahmadi M, Taghavizadeh Yazdi ME, Gholampour-Faroji N, Bahrami A, Zomorodipour A, Moghadam Matin M, Qayoomian M, Saebnia N. Introns and Their Therapeutic Applications in Biomedical Researches. IRANIAN JOURNAL OF BIOTECHNOLOGY 2023; 21:e3316. [PMID: 38269198 PMCID: PMC10804063 DOI: 10.30498/ijb.2023.334488.3316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 03/23/2023] [Indexed: 01/26/2024]
Abstract
Context Although for a long time, it was thought that intervening sequences (introns) were junk DNA without any function, their critical roles and the underlying molecular mechanisms in genome regulation have only recently come to light. Introns not only carry information for splicing, but they also play many supportive roles in gene regulation at different levels. They are supposed to function as useful tools in various biological processes, particularly in the diagnosis and treatment of diseases. Introns can contribute to numerous biological processes, including gene silencing, gene imprinting, transcription, mRNA metabolism, mRNA nuclear export, mRNA localization, mRNA surveillance, RNA editing, NMD, translation, protein stability, ribosome biogenesis, cell growth, embryonic development, apoptosis, molecular evolution, genome expansion, and proteome diversity through various mechanisms. Evidence Acquisition In order to fulfill the objectives of this study, the following databases were searched: Medline, Scopus, Web of Science, EBSCO, Open Access Journals, and Google Scholar. Only articles published in English were included. Results & Conclusions The intervening sequences of eukaryotic genes have critical functions in genome regulation, as well as in molecular evolution. Here, we summarize recent advances in our understanding of how introns influence genome regulation, as well as their effects on molecular evolution. Moreover, therapeutic strategies based on intron sequences are discussed. According to the obtained results, a thorough understanding of intron functional mechanisms could lead to new opportunities in disease diagnosis and therapies, as well as in biotechnology applications.
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Affiliation(s)
- Aliakbar Haddad-Mashadrizeh
- Industrial Biotechnology Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mahdi Mirahmadi
- Stem Cell and Regenerative Medicine Research Group, Iranian Academic Center for Education, Culture and Research (ACECR), Khorasan Razavi Branch, Mashhad, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Nazanin Gholampour-Faroji
- Industrial Biotechnology Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ahmadreza Bahrami
- Industrial Biotechnology Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Maryam Moghadam Matin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohsen Qayoomian
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Neda Saebnia
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
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7
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Romhányi D, Szabó K, Kemény L, Groma G. Histone and Histone Acetylation-Related Alterations of Gene Expression in Uninvolved Psoriatic Skin and Their Effects on Cell Proliferation, Differentiation, and Immune Responses. Int J Mol Sci 2023; 24:14551. [PMID: 37833997 PMCID: PMC10572426 DOI: 10.3390/ijms241914551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/11/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
Psoriasis is a chronic immune-mediated skin disease in which the symptom-free, uninvolved skin carries alterations in gene expression, serving as a basis for lesion formation. Histones and histone acetylation-related processes are key regulators of gene expression, controlling cell proliferation and immune responses. Dysregulation of these processes is likely to play an important role in the pathogenesis of psoriasis. To gain a complete overview of these potential alterations, we performed a meta-analysis of a psoriatic uninvolved skin dataset containing differentially expressed transcripts from nearly 300 individuals and screened for histones and histone acetylation-related molecules. We identified altered expression of the replication-dependent histones HIST2H2AA3 and HIST2H4A and the replication-independent histones H2AFY, H2AFZ, and H3F3A/B. Eight histone chaperones were also identified. Among the histone acetyltransferases, ELP3 and KAT5 and members of the ATAC, NSL, and SAGA acetyltransferase complexes are affected in uninvolved skin. Histone deacetylation-related alterations were found to affect eight HDACs and members of the NCOR/SMRT, NURD, SIN3, and SHIP HDAC complexes. In this article, we discuss how histone and histone acetylation-related expression changes may affect proliferation and differentiation, as well as innate, macrophage-mediated, and T cell-mediated pro- and anti-inflammatory responses, which are known to play a central role in the development of psoriasis.
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Affiliation(s)
- Dóra Romhányi
- Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (D.R.); (K.S.); (L.K.)
| | - Kornélia Szabó
- Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (D.R.); (K.S.); (L.K.)
- Hungarian Centre of Excellence for Molecular Medicine-University of Szeged Skin Research Group (HCEMM-USZ Skin Research Group), H-6720 Szeged, Hungary
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Lajos Kemény
- Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (D.R.); (K.S.); (L.K.)
- Hungarian Centre of Excellence for Molecular Medicine-University of Szeged Skin Research Group (HCEMM-USZ Skin Research Group), H-6720 Szeged, Hungary
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Gergely Groma
- Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (D.R.); (K.S.); (L.K.)
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
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8
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Long J, Carter B, Johnson ET, Ogas J. Contribution of the histone variant H2A.Z to expression of responsive genes in plants. Semin Cell Dev Biol 2023; 135:85-92. [PMID: 35474148 PMCID: PMC9588091 DOI: 10.1016/j.semcdb.2022.04.006] [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: 01/10/2022] [Revised: 04/08/2022] [Accepted: 04/10/2022] [Indexed: 11/19/2022]
Abstract
The histone variant H2A.Z plays a critical role in chromatin-based processes such as transcription, replication, and repair in eukaryotes. Although many H2A.Z-associated processes and features are conserved in plants and animals, a distinguishing feature of plant chromatin is the enrichment of H2A.Z in the bodies of genes that exhibit dynamic expression, particularly in response to differentiation and the environment. Recent work sheds new light on the plant machinery that enables dynamic changes in H2A.Z enrichment and identifies additional chromatin-based pathways that contribute to transcriptional properties of H2A.Z-enriched chromatin. In particular, analysis of a variety of responsive loci reveals a repressive role for H2A.Z in expression of responsive genes and identifies roles for SWR1 and INO80 chromatin remodelers in enabling dynamic regulation of H2A.Z levels and transcription. These studies lay the groundwork for understanding how this ancient histone variant is harnessed by plants to enable responsive and dynamic gene expression (Graphical Abstract).
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Affiliation(s)
- Jiaxin Long
- Department of Biochemistry, Purdue University, West Lafayette, IN 47906, USA
| | - Benjamin Carter
- Laboratory of Epigenome Biology, Systems Biology Center, National Heart, Lung and Blood Institute, NIH, Bethesda, MD 20892, USA
| | - Emily T Johnson
- Department of Biochemistry, Purdue University, West Lafayette, IN 47906, USA
| | - Joe Ogas
- Department of Biochemistry, Purdue University, West Lafayette, IN 47906, USA.
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9
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Interplay Between the Histone Variant H2A.Z and the Epigenome in Pancreatic Cancer. Arch Med Res 2022; 53:840-858. [PMID: 36470770 DOI: 10.1016/j.arcmed.2022.11.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/25/2022] [Accepted: 11/18/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND The oncogenic process is orchestrated by a complex network of chromatin remodeling elements that shape the cancer epigenome. Histone variant H2A.Z regulates DNA control elements such as promoters and enhancers in different types of cancer; however, the interplay between H2A.Z and the pancreatic cancer epigenome is unknown. OBJECTIVE This study analyzed the role of H2A.Z in different DNA regulatory elements. METHODS We performed Chromatin Immunoprecipitation Sequencing assays (ChiP-seq) with total H2A.Z and acetylated H2A.Z (acH2A.Z) antibodies and analyzed published data from ChIP-seq, RNA-seq, bromouridine labeling-UV and sequencing (BruUV-seq), Hi-C and ATAC-seq (Assay for Transposase-Accessible Chromatin using sequencing) in the pancreatic cancer cell line PANC-1. RESULTS The results indicate that total H2A.Z facilitates the recruitment of RNA polymerase II and transcription factors at promoters and enhancers allowing the expression of pro-oncogenic genes. Interestingly, we demonstrated that H2A.Z is enriched in super-enhancers (SEs) contributing to the transcriptional activation of key genes implicated in tumor development. Importantly, we established that H2A.Z contributes to the three-dimensional (3D) genome organization of pancreatic cancer and that it is a component of the Topological Associated Domains (TADs) boundaries in PANC-1 and that total H2A.Z and acH2A.Z are associated with A and B compartments, respectively. CONCLUSIONS H2A.Z participates in the biology and development of pancreatic cancer by generating a pro-oncogenic transcriptome through its posttranslational modifications, interactions with different partners, and regulatory elements, contributing to the oncogenic 3D genome organization. These data allow us to understand the molecular mechanisms that promote an oncogenic transcriptome in pancreatic cancer mediated by H2A.Z.
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10
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Marker-free co-selection for successive rounds of prime editing in human cells. Nat Commun 2022; 13:5909. [PMID: 36207338 PMCID: PMC9546848 DOI: 10.1038/s41467-022-33669-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 09/27/2022] [Indexed: 11/18/2022] Open
Abstract
Prime editing enables the introduction of precise point mutations, small insertions, or short deletions without requiring donor DNA templates. However, efficiency remains a key challenge in a broad range of human cell types. In this work, we design a robust co-selection strategy through coediting of the ubiquitous and essential sodium/potassium pump (Na+/K+ ATPase). We readily engineer highly modified pools of cells and clones with homozygous modifications for functional studies with minimal pegRNA optimization. This process reveals that nicking the non-edited strand stimulates multiallelic editing but often generates tandem duplications and large deletions at the target site, an outcome dictated by the relative orientation of the protospacer adjacent motifs. Our approach streamlines the production of cell lines with multiple genetic modifications to create cellular models for biological research and lays the foundation for the development of cell-type specific co-selection strategies. Prime editing enables the introduction of precise point mutations, small insertions, or short deletions without requiring donor DNA templates. Here the authors develop a co-selection strategy to facilitate prime editing in human cells and provide design principles to prevent the formation of undesired editing byproducts at the target site.
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11
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Gómez-Marín E, Posavec-Marjanović M, Zarzuela L, Basurto-Cayuela L, Guerrero-Martínez JA, Arribas G, Yerbes R, Ceballos-Chávez M, Rodríguez-Paredes M, Tomé M, Durán RV, Buschbeck M, Reyes JC. The high mobility group protein HMG20A cooperates with the histone reader PHF14 to modulate TGFβ and Hippo pathways. Nucleic Acids Res 2022; 50:9838-9857. [PMID: 36124662 PMCID: PMC9508832 DOI: 10.1093/nar/gkac766] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 08/01/2022] [Accepted: 09/15/2022] [Indexed: 11/20/2022] Open
Abstract
High mobility group (HMG) proteins are chromatin regulators with essential functions in development, cell differentiation and cell proliferation. The protein HMG20A is predicted by the AlphaFold2 software to contain three distinct structural elements, which we have functionally characterized: i) an amino-terminal, intrinsically disordered domain with transactivation activity; ii) an HMG box with higher binding affinity for double-stranded, four-way-junction DNA than for linear DNA; and iii) a long coiled-coil domain. Our proteomic study followed by a deletion analysis and structural modeling demonstrates that HMG20A forms a complex with the histone reader PHF14, via the establishment of a two-stranded alpha-helical coiled-coil structure. siRNA-mediated knockdown of either PHF14 or HMG20A in MDA-MB-231 cells causes similar defects in cell migration, invasion and homotypic cell–cell adhesion ability, but neither affects proliferation. Transcriptomic analyses demonstrate that PHF14 and HMG20A share a large subset of targets. We show that the PHF14-HMG20A complex modulates the Hippo pathway through a direct interaction with the TEAD1 transcription factor. PHF14 or HMG20A deficiency increases epithelial markers, including E-cadherin and the epithelial master regulator TP63 and impaired normal TGFβ-trigged epithelial-to-mesenchymal transition. Taken together, these data indicate that PHF14 and HMG20A cooperate in regulating several pathways involved in epithelial–mesenchymal plasticity.
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Affiliation(s)
- Elena Gómez-Marín
- Genome Biology Department. Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla-Universidad Pablo de Olavide (CSIC-USE-UPO), Av. Americo Vespucio, 41092 Seville, Spain
| | - Melanija Posavec-Marjanović
- Program for Predictive and Personalized Medicine of Cancer, Germans Trias i Pujol Research Institute (PMPPC-IGTP), Badalona, Spain
| | - Laura Zarzuela
- Cell Dynamics and Signaling Department. Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla-Universidad Pablo de Olavide (CSIC-USE-UPO), Av. Americo Vespucio, 41092 Seville, Spain
| | - Laura Basurto-Cayuela
- Genome Biology Department. Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla-Universidad Pablo de Olavide (CSIC-USE-UPO), Av. Americo Vespucio, 41092 Seville, Spain
| | - José A Guerrero-Martínez
- Genome Biology Department. Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla-Universidad Pablo de Olavide (CSIC-USE-UPO), Av. Americo Vespucio, 41092 Seville, Spain
| | - Gonzalo Arribas
- Genome Biology Department. Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla-Universidad Pablo de Olavide (CSIC-USE-UPO), Av. Americo Vespucio, 41092 Seville, Spain
| | - Rosario Yerbes
- Cell Dynamics and Signaling Department. Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla-Universidad Pablo de Olavide (CSIC-USE-UPO), Av. Americo Vespucio, 41092 Seville, Spain
| | - María Ceballos-Chávez
- Genome Biology Department. Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla-Universidad Pablo de Olavide (CSIC-USE-UPO), Av. Americo Vespucio, 41092 Seville, Spain
| | - Manuel Rodríguez-Paredes
- Institute of Toxicology, University Medical Center Mainz, Johannes Gutenberg University, 55131 Mainz, Germany
| | - Mercedes Tomé
- Cell Dynamics and Signaling Department. Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla-Universidad Pablo de Olavide (CSIC-USE-UPO), Av. Americo Vespucio, 41092 Seville, Spain
| | - Raúl V Durán
- Cell Dynamics and Signaling Department. Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla-Universidad Pablo de Olavide (CSIC-USE-UPO), Av. Americo Vespucio, 41092 Seville, Spain
| | - Marcus Buschbeck
- Program for Predictive and Personalized Medicine of Cancer, Germans Trias i Pujol Research Institute (PMPPC-IGTP), Badalona, Spain.,Cancer and Leukaemia Epigenetics and Biology Program, Josep Carreras Leukaemia Research Institute (IJC), 08916 Badalona, Spain
| | - José C Reyes
- Genome Biology Department. Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla-Universidad Pablo de Olavide (CSIC-USE-UPO), Av. Americo Vespucio, 41092 Seville, Spain
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12
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Bhowmick R, Lerdrup M, Gadi SA, Rossetti GG, Singh MI, Liu Y, Halazonetis TD, Hickson ID. RAD51 protects human cells from transcription-replication conflicts. Mol Cell 2022; 82:3366-3381.e9. [PMID: 36002000 DOI: 10.1016/j.molcel.2022.07.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 06/02/2022] [Accepted: 07/16/2022] [Indexed: 12/16/2022]
Abstract
Oncogene activation during tumorigenesis promotes DNA replication stress (RS), which subsequently drives the formation of cancer-associated chromosomal rearrangements. Many episodes of physiological RS likely arise due to conflicts between the DNA replication and transcription machineries operating simultaneously at the same loci. One role of the RAD51 recombinase in human cells is to protect replication forks undergoing RS. Here, we have identified a key role for RAD51 in preventing transcription-replication conflicts (TRCs) from triggering replication fork breakage. The genomic regions most affected by RAD51 deficiency are characterized by being replicated and transcribed in early S-phase and show significant overlap with loci prone to cancer-associated amplification. Consistent with a role for RAD51 in protecting against transcription-replication conflicts, many of the adverse effects of RAD51 depletion are ameliorated by inhibiting early S-phase transcription. We propose a model whereby RAD51 suppresses fork breakage and subsequent inadvertent amplification of genomic loci prone to experiencing TRCs.
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Affiliation(s)
- Rahul Bhowmick
- Center for Chromosome Stability, Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark
| | - Mads Lerdrup
- Center for Chromosome Stability, Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark
| | - Sampath Amitash Gadi
- Center for Chromosome Stability, Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark
| | - Giacomo G Rossetti
- Department of Molecular Biology, University of Geneva, 30, quai Ernest-Ansermet, 1205, Geneva, Switzerland
| | - Manika I Singh
- Center for Chromosome Stability, Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark
| | - Ying Liu
- Center for Chromosome Stability, Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark
| | - Thanos D Halazonetis
- Department of Molecular Biology, University of Geneva, 30, quai Ernest-Ansermet, 1205, Geneva, Switzerland
| | - Ian D Hickson
- Center for Chromosome Stability, Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark.
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13
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Kreienbaum C, Paasche LW, Hake SB. H2A.Z's 'social' network: functional partners of an enigmatic histone variant. Trends Biochem Sci 2022; 47:909-920. [PMID: 35606214 DOI: 10.1016/j.tibs.2022.04.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/14/2022] [Accepted: 04/26/2022] [Indexed: 11/25/2022]
Abstract
The histone variant H2A.Z has been extensively studied to understand its manifold DNA-based functions. In the past years, researchers identified its specific binding partners, the 'H2A.Z interactome', that convey H2A.Z-dependent chromatin changes. Here, we summarize the latest findings regarding vertebrate H2A.Z-associated factors and focus on their roles in gene activation and repression, cell cycle regulation, (neuro)development, and tumorigenesis. Additionally, we demonstrate how protein-protein interactions and post-translational histone modifications can fine-tune the complex interplay of H2A.Z-regulated gene expression. Last, we review the most recent results on interactors of the two isoforms H2A.Z.1 and H2A.Z.2.1, which differ in only three amino acids, and focus on cancer-associated mutations of H2A and H2A.Z, which reveal fascinating insights into the functional importance of such minuscule changes.
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Affiliation(s)
| | - Lena W Paasche
- Institute for Genetics, Justus-Liebig-University Giessen, Giessen, Germany
| | - Sandra B Hake
- Institute for Genetics, Justus-Liebig-University Giessen, Giessen, Germany.
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14
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Herchenröther A, Wunderlich TM, Lan J, Hake SB. Spotlight on histone H2A variants: From B to X to Z. Semin Cell Dev Biol 2022; 135:3-12. [PMID: 35365397 DOI: 10.1016/j.semcdb.2022.03.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 03/18/2022] [Accepted: 03/20/2022] [Indexed: 12/30/2022]
Abstract
Chromatin, the functional organization of DNA with histone proteins in eukaryotic nuclei, is the tightly-regulated template for several biological processes, such as transcription, replication, DNA damage repair, chromosome stability and sister chromatid segregation. In order to achieve a reversible control of local chromatin structure and DNA accessibility, various interconnected mechanisms have evolved. One of such processes includes the deposition of functionally-diverse variants of histone proteins into nucleosomes, the building blocks of chromatin. Among core histones, the family of H2A histone variants exhibits the largest number of members and highest sequence-divergence. In this short review, we report and discuss recent discoveries concerning the biological functions of the animal histone variants H2A.B, H2A.X and H2A.Z and how dysregulation or mutation of the latter impacts the development of disease.
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Affiliation(s)
| | - Tim M Wunderlich
- Institute for Genetics, Justus Liebig University, 35390 Giessen, Germany
| | - Jie Lan
- Institute for Genetics, Justus Liebig University, 35390 Giessen, Germany.
| | - Sandra B Hake
- Institute for Genetics, Justus Liebig University, 35390 Giessen, Germany.
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15
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E2F and STAT3 provide transcriptional synergy for histone variant H2AZ activation to sustain glioblastoma chromatin accessibility and tumorigenicity. Cell Death Differ 2022; 29:1379-1394. [PMID: 35058574 PMCID: PMC9287453 DOI: 10.1038/s41418-021-00926-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 12/14/2021] [Accepted: 12/14/2021] [Indexed: 12/26/2022] Open
Abstract
The histone variant H2AZ is overexpressed in diverse cancer types where it facilitates the accessibility of transcriptional regulators to the promoters of cell cycle genes. However, the molecular basis for its dysregulation in cancer remains unknown. Here, we report that glioblastomas (GBM) and glioma stem cells (GSCs) preferentially overexpress H2AZ for their proliferation, stemness and tumorigenicity. Chromatin accessibility analysis of H2AZ2 depleted GSC revealed that E2F1 occupies the enhancer region within H2AZ2 gene promoter, thereby activating H2AZ2 transcription. Exploration of other H2AZ2 transcriptional activators using a customized "anti-H2AZ2" query signature for connectivity map analysis identified STAT3. Co-targeting E2F and STAT3 synergistically reduced the levels of H2AZ, histone 3 lysine 27 acetylation (H3K27ac) and cell cycle gene transcription, indicating that E2F1 and STAT3 synergize to activate H2AZ gene transcription in GSCs. Remarkably, an E2F/STAT3 inhibitor combination durably suppresses GSC tumorigenicity in an orthotopic GBM xenograft model. In glioma patients, high STAT3 signaling is associated with high E2F1 and H2AZ2 expression. Thus, GBM has uniquely opted the use of E2F1- and STAT3-containing "enhanceosomes" that integrate multiple signaling pathways to achieve H2AZ gene activation, supporting a translational path for the E2F/STAT3 inhibitor combination to be applied in GBM treatment.
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16
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Freeman BC. Genome Organization and Dynamics Specialty Grand Challenge. Front Mol Biosci 2022; 8:818707. [PMID: 35036413 PMCID: PMC8758561 DOI: 10.3389/fmolb.2021.818707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 12/06/2021] [Indexed: 11/29/2022] Open
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17
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Sales-Gil R, Kommer DC, de Castro IJ, Amin HA, Vinciotti V, Sisu C, Vagnarelli P. Non-redundant functions of H2A.Z.1 and H2A.Z.2 in chromosome segregation and cell cycle progression. EMBO Rep 2021; 22:e52061. [PMID: 34423893 PMCID: PMC8567233 DOI: 10.15252/embr.202052061] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 07/26/2021] [Accepted: 08/03/2021] [Indexed: 12/30/2022] Open
Abstract
H2A.Z is a H2A‐type histone variant essential for many aspects of cell biology, ranging from gene expression to genome stability. From deuterostomes, H2A.Z evolved into two paralogues, H2A.Z.1 and H2A.Z.2, that differ by only three amino acids and are encoded by different genes (H2AFZ and H2AFV, respectively). Despite the importance of this histone variant in development and cellular homeostasis, very little is known about the individual functions of each paralogue in mammals. Here, we have investigated the distinct roles of the two paralogues in cell cycle regulation and unveiled non‐redundant functions for H2A.Z.1 and H2A.Z.2 in cell division. Our findings show that H2A.Z.1 regulates the expression of cell cycle genes such as Myc and Ki‐67 and its depletion leads to a G1 arrest and cellular senescence. On the contrary, H2A.Z.2, in a transcription‐independent manner, is essential for centromere integrity and sister chromatid cohesion regulation, thus playing a key role in chromosome segregation.
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Affiliation(s)
- Raquel Sales-Gil
- College of Health, Medicine and Life Science, Brunel University London, London, UK
| | - Dorothee C Kommer
- College of Health, Medicine and Life Science, Brunel University London, London, UK
| | - Ines J de Castro
- College of Health, Medicine and Life Science, Brunel University London, London, UK
| | - Hasnat A Amin
- College of Health, Medicine and Life Science, Brunel University London, London, UK
| | - Veronica Vinciotti
- College of Engineering, Design and Physical Sciences, Research Institute for Environment Health and Society, Brunel University London, London, UK
| | - Cristina Sisu
- College of Health, Medicine and Life Science, Brunel University London, London, UK
| | - Paola Vagnarelli
- College of Health, Medicine and Life Science, Brunel University London, London, UK
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18
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Colino-Sanguino Y, Clark SJ, Valdes-Mora F. The H2A.Z-nuclesome code in mammals: emerging functions. Trends Genet 2021; 38:273-289. [PMID: 34702577 DOI: 10.1016/j.tig.2021.10.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/30/2021] [Accepted: 10/04/2021] [Indexed: 12/12/2022]
Abstract
H2A.Z is a histone variant that provides specific structural and docking-side properties to the nucleosome, resulting in diverse and specialised molecular and cellular functions. In this review, we discuss the latest studies uncovering new functional aspects of mammalian H2A.Z in gene transcription, including pausing and elongation of RNA polymerase II (RNAPII) and enhancer activity; DNA repair; DNA replication; and 3D chromatin structure. We also review the recently described role of H2A.Z in embryonic development, cell differentiation, neurodevelopment, and brain function. In conclusion, our cumulative knowledge of H2A.Z over the past 40 years, in combination with the implementation of novel molecular technologies, is unravelling an unexpected and complex role of histone variants in gene regulation and disease.
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Affiliation(s)
- Yolanda Colino-Sanguino
- Cancer Epigenetics Biology and Therapeutics, Precision Medicine Theme, Children's Cancer Institute, Sydney, NSW, Australia; School of Children and Women Health, University of NSW Sydney, Sydney, NSW, Australia.
| | - Susan J Clark
- Epigenetics Research Laboratory, Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, NSW, Australia; St. Vincent's Clinical School, University of NSW Sydney, Sydney, NSW, Australia
| | - Fatima Valdes-Mora
- Cancer Epigenetics Biology and Therapeutics, Precision Medicine Theme, Children's Cancer Institute, Sydney, NSW, Australia; School of Children and Women Health, University of NSW Sydney, Sydney, NSW, Australia.
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19
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Cameron B, Lehrmann E, Chih T, Walters J, Buksch R, Snyder S, Goffena J, Lefcort F, Becker KG, George L. Loss of Elp1 perturbs histone H2A.Z and the Notch signaling pathway. Biol Open 2021; 10:272332. [PMID: 34590699 PMCID: PMC8496692 DOI: 10.1242/bio.058979] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 08/17/2021] [Indexed: 12/12/2022] Open
Abstract
Elongator dysfunction is increasingly recognized as a contributor to multiple neurodevelopmental and neurodegenerative disorders including familial dysautonomia, intellectual disability, amyotrophic lateral sclerosis, and autism spectrum disorder. Although numerous cellular processes are perturbed in the context of Elongator loss, converging evidence from multiple studies has resolved Elongator's primary function in the cell to the modification of tRNA wobble uridines and the translational regulation of codon-biased genes. Here we characterize H2a.z, encoding the variant H2a histone H2A.Z, as an indirect Elongator target. We further show that canonical Notch signaling, a pathway directed by H2A.Z, is perturbed as a consequence of Elp1 loss. Finally, we demonstrate that hyperacetylation of H2A.Z and other histones via exposure to the histone deacetylase inhibitor Trichostatin A during neurogenesis corrects the expression of Notch3 and rescues the development of sensory neurons in embryos lacking the Elp1 Elongator subunit. Summary: The maldevelopment of sensory neurons in Elongator knockout embryos is associated with elevated H2A.Z and perturbed Notch signaling that can be rescued by Trichostatin A.
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Affiliation(s)
- BreAnna Cameron
- Department of Biological and Physical Sciences, Montana State University Billings, Billings, MT 59101, USA
| | - Elin Lehrmann
- Computational Biology & Genomics Core (CBGC), Laboratory of Genetics and Genomics (LGG), Department of Health and Human Services (DHHS), National Institute on Aging, Intramural Research Program (NIA IRP), National Institutes of Health (NIH), Biomedical Research Center, Baltimore, MD 21224, USA
| | - Tien Chih
- Department of Biological and Physical Sciences, Montana State University Billings, Billings, MT 59101, USA
| | - Joseph Walters
- Department of Biological and Physical Sciences, Montana State University Billings, Billings, MT 59101, USA
| | - Richard Buksch
- Department of Biological and Physical Sciences, Montana State University Billings, Billings, MT 59101, USA
| | - Sara Snyder
- Department of Biological and Physical Sciences, Montana State University Billings, Billings, MT 59101, USA
| | - Joy Goffena
- Department of Biological and Physical Sciences, Montana State University Billings, Billings, MT 59101, USA
| | - Frances Lefcort
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA
| | - Kevin G Becker
- Gene Expression and Genomics Unit, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Lynn George
- Department of Biological and Physical Sciences, Montana State University Billings, Billings, MT 59101, USA
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20
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Lowden C, Boulet A, Boehler NA, Seecharran S, Rios Garcia J, Lowe NJ, Liu J, Ong JLK, Wang W, Ma L, Cheng AH, Senatore A, Monks DA, Liu BH, Leary SC, Cheng HYM. Homeostatic control of nuclear-encoded mitochondrial gene expression by the histone variant H2A.Z is essential for neuronal survival. Cell Rep 2021; 36:109704. [PMID: 34525369 DOI: 10.1016/j.celrep.2021.109704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/22/2021] [Accepted: 08/20/2021] [Indexed: 11/16/2022] Open
Abstract
Histone variants are crucial regulators of chromatin structure and gene transcription, yet their functions within the brain remain largely unexplored. Here, we show that the H2A histone variant H2A.Z is essential for neuronal survival. Mice lacking H2A.Z in GABAergic neurons or Purkinje cells (PCs) present with a progressive cerebellar ataxia accompanied by widespread degeneration of PCs. Ablation of H2A.Z in other neuronal subtypes also triggers cell death. H2A.Z binds to the promoters of key nuclear-encoded mitochondrial genes to regulate their expression and promote organelle function. Bolstering mitochondrial activity genetically or by organelle transplant enhances the survival of H2A.Z-ablated neurons. Changes in bioenergetic status alter H2A.Z occupancy at the promoters of nuclear-encoded mitochondrial genes, an adaptive response essential for cell survival. Our results highlight that H2A.Z fulfills a key, conserved role in neuronal survival by acting as a transcriptional rheostat to regulate the expression of genes critical to mitochondrial function.
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Affiliation(s)
- Christopher Lowden
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada; Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada
| | - Aren Boulet
- Department of Biochemistry, Microbiology and Immunology, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
| | - Nicholas A Boehler
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada; Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada
| | - Shavanie Seecharran
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada; Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada
| | - Julian Rios Garcia
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada; Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada
| | - Nicholas J Lowe
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
| | - Jiashu Liu
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada; Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada
| | - Jonathan L K Ong
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
| | - Wanzhang Wang
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
| | - Lingfeng Ma
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
| | - Arthur H Cheng
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada; Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada
| | - Adriano Senatore
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada; Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada
| | - D Ashley Monks
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada; Department of Psychology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
| | - Bao-Hua Liu
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada; Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada
| | - Scot C Leary
- Department of Biochemistry, Microbiology and Immunology, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
| | - Hai-Ying Mary Cheng
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada; Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada.
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21
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22
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Yuan Y, Cao W, Zhou H, Qian H, Wang H. H2A.Z acetylation by lincZNF337-AS1 via KAT5 implicated in the transcriptional misregulation in cancer signaling pathway in hepatocellular carcinoma. Cell Death Dis 2021; 12:609. [PMID: 34120148 PMCID: PMC8197763 DOI: 10.1038/s41419-021-03895-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 05/31/2021] [Accepted: 05/31/2021] [Indexed: 12/12/2022]
Abstract
In eukaryotes, histones and their variants are essential for chromatin structure and function; both play important roles in the regulation of gene transcription, as well as the development of tumors. We aimed to explore the genomics data of hepatocellular carcinoma (HCC), combined with literature analysis, in terms of the histone variant H2A.Z. Cell phenotype assay confirmed the effect of H2A.Z on the proliferation, metastasis, apoptosis, and cell cycle of HCC cells. H2A.Z was shown to function via the tumor dysregulation signaling pathway, with BCL6 as its interacting protein. In addition, the acetylation level of H2A.Z was higher in HCC and was related to tumor formation. We found the acetylation of H2A.Z to be related to and regulated by lincZNF337-AS1. LincZNF337-AS1 was found to bind to H2A.Z and KAT5 at different sites, promoting the acetylation of H2A.Z through KAT5. We concluded that, in HCC, H2A.Z is an oncogene, whose acetylation promotes the transcription of downstream genes, and is regulated by lincZNF331-AS1.
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Affiliation(s)
- Yin Yuan
- The Department of Hepatobiliary Surgery of Hospital Affiliated 5 to Nantong University(Taizhou People's Hospital), Taizhou, Jiangsu Province, China
| | - Wen Cao
- The Department of Liver Disease of Hospital Affiliated 5 to Nantong University(Taizhou People's Hospital), Taizhou, Jiangsu Province, China
| | - Hongbing Zhou
- The Department of Hepatobiliary Surgery of Hospital Affiliated 5 to Nantong University(Taizhou People's Hospital), Taizhou, Jiangsu Province, China
| | - Haixin Qian
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Honggang Wang
- The Department of General Surgery of Hospital Affiliated 5 to Nantong University(Taizhou People's Hospital), Taizhou, Jiangsu Province, China.
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23
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Kumar A, Chan J, Taguchi M, Kono H. Interplay among transacting factors around promoter in the initial phases of transcription. Curr Opin Struct Biol 2021; 71:7-15. [PMID: 34111671 DOI: 10.1016/j.sbi.2021.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/20/2021] [Accepted: 04/27/2021] [Indexed: 10/21/2022]
Abstract
The initiation signals are raised around the promoter by one of the general transcription factors, triggering a sequence of events that lead to mRNA transcript formation from target genes. Both specific noncoding DNA regions and transacting, macromolecular assemblies are intricately involved and indispensable. The transition between the subsequent transcriptional stages is accompanied by stage-specific signals and structural changes in the macromolecular assemblies and facilitated by the recruitment/removal of other chromatin and transcription-associated elements. Here, we discuss the choreography of transacting factors around promoter in the establishment and effectuation of the initial phases of transcription such as NDR formation, +1 nucleosome positioning, promoter DNA opening, and RNAPII promoter escape from a structural viewpoint.
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Affiliation(s)
- Amarjeet Kumar
- Molecular Modeling and Simulation Group, Institute for Quantum Life Science, National Institutes for Quantum and Radiological Science and Technology, 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan
| | - Justin Chan
- Molecular Modeling and Simulation Group, Institute for Quantum Life Science, National Institutes for Quantum and Radiological Science and Technology, 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan
| | - Masahiko Taguchi
- Molecular Modeling and Simulation Group, Institute for Quantum Life Science, National Institutes for Quantum and Radiological Science and Technology, 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan
| | - Hidetoshi Kono
- Molecular Modeling and Simulation Group, Institute for Quantum Life Science, National Institutes for Quantum and Radiological Science and Technology, 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan.
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24
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Mylonas C, Lee C, Auld AL, Cisse II, Boyer LA. A dual role for H2A.Z.1 in modulating the dynamics of RNA polymerase II initiation and elongation. Nat Struct Mol Biol 2021; 28:435-442. [PMID: 33972784 DOI: 10.1038/s41594-021-00589-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 04/06/2021] [Indexed: 02/03/2023]
Abstract
RNA polymerase II (RNAPII) pausing immediately downstream of the transcription start site is a critical rate-limiting step for the expression of most metazoan genes. During pause release, RNAPII encounters a highly conserved +1 H2A.Z nucleosome, yet how this histone variant contributes to transcription is poorly understood. Here, using an inducible protein degron system combined with genomic approaches and live cell super-resolution microscopy, we show that H2A.Z.1 modulates RNAPII dynamics across most genes in murine embryonic stem cells. Our quantitative analysis shows that H2A.Z.1 slows the rate of RNAPII pause release and consequently impacts negative elongation factor dynamics as well as nascent transcription. Consequently, H2A.Z.1 also impacts re-loading of the pre-initiation complex components TFIIB and TBP. Altogether, this work provides a critical mechanistic link between H2A.Z.1 and the proper induction of mammalian gene expression programs through the regulation of RNAPII dynamics and pause release.
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Affiliation(s)
- Constantine Mylonas
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Choongman Lee
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Alexander L Auld
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Ibrahim I Cisse
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Laurie A Boyer
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA. .,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
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25
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Jonckheere V, Van Damme P. N-Terminal Acetyltransferase Naa40p Whereabouts Put into N-Terminal Proteoform Perspective. Int J Mol Sci 2021; 22:ijms22073690. [PMID: 33916271 PMCID: PMC8037211 DOI: 10.3390/ijms22073690] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/28/2021] [Accepted: 03/28/2021] [Indexed: 11/21/2022] Open
Abstract
The evolutionary conserved N-alpha acetyltransferase Naa40p is among the most selective N-terminal acetyltransferases (NATs) identified to date. Here we identified a conserved N-terminally truncated Naa40p proteoform named Naa40p25 or short Naa40p (Naa40S). Intriguingly, although upon ectopic expression in yeast, both Naa40p proteoforms were capable of restoring N-terminal acetylation of the characterized yeast histone H2A Naa40p substrate, the Naa40p histone H4 substrate remained N-terminally free in human haploid cells specifically deleted for canonical Naa40p27 or 237 amino acid long Naa40p (Naa40L), but expressing Naa40S. Interestingly, human Naa40L and Naa40S displayed differential expression and subcellular localization patterns by exhibiting a principal nuclear and cytoplasmic localization, respectively. Furthermore, Naa40L was shown to be N-terminally myristoylated and to interact with N-myristoyltransferase 1 (NMT1), implicating NMT1 in steering Naa40L nuclear import. Differential interactomics data obtained by biotin-dependent proximity labeling (BioID) further hints to context-dependent roles of Naa40p proteoforms. More specifically, with Naa40S representing the main co-translationally acting actor, the interactome of Naa40L was enriched for nucleolar proteins implicated in ribosome biogenesis and the assembly of ribonucleoprotein particles, overall indicating a proteoform-specific segregation of previously reported Naa40p activities. Finally, the yeast histone variant H2A.Z and the transcriptionally regulatory protein Lge1 were identified as novel Naa40p substrates, expanding the restricted substrate repertoire of Naa40p with two additional members and further confirming Lge1 as being the first redundant yNatA and yNatD substrate identified to date.
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26
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Abstract
Cancer is a complex disease characterized by loss of cellular homeostasis through genetic and epigenetic alterations. Emerging evidence highlights a role for histone variants and their dedicated chaperones in cancer initiation and progression. Histone variants are involved in processes as diverse as maintenance of genome integrity, nuclear architecture and cell identity. On a molecular level, histone variants add a layer of complexity to the dynamic regulation of transcription, DNA replication and repair, and mitotic chromosome segregation. Because these functions are critical to ensure normal proliferation and maintenance of cellular fate, cancer cells are defined by their capacity to subvert them. Hijacking histone variants and their chaperones is emerging as a common means to disrupt homeostasis across a wide range of cancers, particularly solid tumours. Here we discuss histone variants and histone chaperones as tumour-promoting or tumour-suppressive players in the pathogenesis of cancer.
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Affiliation(s)
| | - Dan Filipescu
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
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27
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Ávila-López PA, Guerrero G, Nuñez-Martínez HN, Peralta-Alvarez CA, Hernández-Montes G, Álvarez-Hilario LG, Herrera-Goepfert R, Albores-Saavedra J, Villegas-Sepúlveda N, Cedillo-Barrón L, Montes-Gómez AE, Vargas M, Schnoor M, Recillas-Targa F, Hernández-Rivas R. H2A.Z overexpression suppresses senescence and chemosensitivity in pancreatic ductal adenocarcinoma. Oncogene 2021; 40:2065-2080. [PMID: 33627784 PMCID: PMC7979544 DOI: 10.1038/s41388-021-01664-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 12/11/2020] [Accepted: 01/18/2021] [Indexed: 01/30/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most intractable and devastating malignant tumors. Epigenetic modifications such as DNA methylation and histone modification regulate tumor initiation and progression. However, the contribution of histone variants in PDAC is unknown. Here, we demonstrated that the histone variant H2A.Z is highly expressed in PDAC cell lines and PDAC patients and that its overexpression correlates with poor prognosis. Moreover, all three H2A.Z isoforms (H2A.Z.1, H2A.Z.2.1, and H2A.Z.2.2) are highly expressed in PDAC cell lines and PDAC patients. Knockdown of these H2A.Z isoforms in PDAC cell lines induces a senescent phenotype, cell cycle arrest in phase G2/M, increased expression of cyclin-dependent kinase inhibitor CDKN2A/p16, SA-β-galactosidase activity and interleukin 8 production. Transcriptome analysis of H2A.Z-depleted PDAC cells showed altered gene expression in fatty acid biosynthesis pathways and those that regulate cell cycle and DNA damage repair. Importantly, depletion of H2A.Z isoforms reduces the tumor size in a mouse xenograft model in vivo and sensitizes PDAC cells to gemcitabine. Overexpression of H2A.Z.1 and H2A.Z.2.1 more than H2A.Z.2.2 partially restores the oncogenic phenotype. Therefore, our data suggest that overexpression of H2A.Z isoforms enables cells to overcome the oncoprotective barrier associated with senescence, favoring PDAC tumor grow and chemoresistance. These results make H2A.Z a potential candidate as a diagnostic biomarker and therapeutic target for PDAC.
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Affiliation(s)
- P. A. Ávila-López
- grid.418275.d0000 0001 2165 8782Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - G. Guerrero
- grid.9486.30000 0001 2159 0001Instituto de Fisiología Celular, Departamento de Genética Molecular, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Mexico
| | - H. N. Nuñez-Martínez
- grid.9486.30000 0001 2159 0001Instituto de Fisiología Celular, Departamento de Genética Molecular, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Mexico
| | - C. A. Peralta-Alvarez
- grid.9486.30000 0001 2159 0001Instituto de Fisiología Celular, Departamento de Genética Molecular, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Mexico
| | - G. Hernández-Montes
- grid.9486.30000 0001 2159 0001Coordinación de la Investigación Científica, Red de Apoyo a la Investigación, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Mexico
| | - L. G. Álvarez-Hilario
- grid.418275.d0000 0001 2165 8782Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - R. Herrera-Goepfert
- grid.419167.c0000 0004 1777 1207Departamento de Patología, Instituto Nacional de Cancerología, Ciudad de México, Mexico
| | - J. Albores-Saavedra
- Departamento de Patología, Medica Sur Clínica y Fundación, Ciudad de México, Mexico
| | - N. Villegas-Sepúlveda
- grid.418275.d0000 0001 2165 8782Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - L. Cedillo-Barrón
- grid.418275.d0000 0001 2165 8782Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - A. E. Montes-Gómez
- grid.418275.d0000 0001 2165 8782Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - M. Vargas
- grid.418275.d0000 0001 2165 8782Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - M. Schnoor
- grid.418275.d0000 0001 2165 8782Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - F. Recillas-Targa
- grid.9486.30000 0001 2159 0001Instituto de Fisiología Celular, Departamento de Genética Molecular, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Mexico
| | - R. Hernández-Rivas
- grid.418275.d0000 0001 2165 8782Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, Mexico
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28
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Scacchetti A, Becker PB. Variation on a theme: Evolutionary strategies for H2A.Z exchange by SWR1-type remodelers. Curr Opin Cell Biol 2020; 70:1-9. [PMID: 33217681 DOI: 10.1016/j.ceb.2020.10.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 10/16/2020] [Accepted: 10/19/2020] [Indexed: 01/08/2023]
Abstract
Histone variants are a universal means to alter the biochemical properties of nucleosomes, implementing local changes in chromatin structure. H2A.Z, one of the most conserved histone variants, is incorporated into chromatin by SWR1-type nucleosome remodelers. Here, we summarize recent advances toward understanding the transcription-regulatory roles of H2A.Z and of the remodeling enzymes that govern its dynamic chromatin incorporation. Tight transcriptional control guaranteed by H2A.Z nucleosomes depends on the context provided by other histone variants or chromatin modifications, such as histone acetylation. The functional cooperation of SWR1-type remodelers with NuA4 histone acetyltransferase complexes, a recurring theme during evolution, is structurally implemented by species-specific strategies.
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Affiliation(s)
- Alessandro Scacchetti
- Molecular Biology Division, Biomedical Center, Ludwig-Maximilians-Universität, Munich, Germany
| | - Peter B Becker
- Molecular Biology Division, Biomedical Center, Ludwig-Maximilians-Universität, Munich, Germany.
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29
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Rispal J, Escaffit F, Trouche D. Chromatin Dynamics in Intestinal Epithelial Homeostasis: A Paradigm of Cell Fate Determination versus Cell Plasticity. Stem Cell Rev Rep 2020; 16:1062-1080. [PMID: 33051755 PMCID: PMC7667136 DOI: 10.1007/s12015-020-10055-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/05/2020] [Indexed: 12/12/2022]
Abstract
The rapid renewal of intestinal epithelium is mediated by a pool of stem cells, located at the bottom of crypts, giving rise to highly proliferative progenitor cells, which in turn differentiate during their migration along the villus. The equilibrium between renewal and differentiation is critical for establishment and maintenance of tissue homeostasis, and is regulated by signaling pathways (Wnt, Notch, Bmp…) and specific transcription factors (TCF4, CDX2…). Such regulation controls intestinal cell identities by modulating the cellular transcriptome. Recently, chromatin modification and dynamics have been identified as major actors linking signaling pathways and transcriptional regulation in the control of intestinal homeostasis. In this review, we synthesize the many facets of chromatin dynamics involved in controlling intestinal cell fate, such as stemness maintenance, progenitor identity, lineage choice and commitment, and terminal differentiation. In addition, we present recent data underlying the fundamental role of chromatin dynamics in intestinal cell plasticity. Indeed, this plasticity, which includes dedifferentiation processes or the response to environmental cues (like microbiota’s presence or food ingestion), is central for the organ’s physiology. Finally, we discuss the role of chromatin dynamics in the appearance and treatment of diseases caused by deficiencies in the aforementioned mechanisms, such as gastrointestinal cancer, inflammatory bowel disease or irritable bowel syndrome. Graphical abstract ![]()
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Affiliation(s)
- Jérémie Rispal
- LBCMCP, Centre of Integrative Biology (CBI), Université de Toulouse, CNRS, UPS, Toulouse, 31062, France
| | - Fabrice Escaffit
- LBCMCP, Centre of Integrative Biology (CBI), Université de Toulouse, CNRS, UPS, Toulouse, 31062, France.
| | - Didier Trouche
- LBCMCP, Centre of Integrative Biology (CBI), Université de Toulouse, CNRS, UPS, Toulouse, 31062, France
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30
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Cheema MS, Good KV, Kim B, Soufari H, O’Sullivan C, Freeman ME, Stefanelli G, Casas CR, Zengeler KE, Kennedy AJ, Eirin Lopez JM, Howard PL, Zovkic IB, Shabanowitz J, Dryhurst DD, Hunt DF, Mackereth CD, Ausió J. Deciphering the Enigma of the Histone H2A.Z-1/H2A.Z-2 Isoforms: Novel Insights and Remaining Questions. Cells 2020; 9:cells9051167. [PMID: 32397240 PMCID: PMC7290884 DOI: 10.3390/cells9051167] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/21/2020] [Accepted: 04/24/2020] [Indexed: 12/20/2022] Open
Abstract
The replication independent (RI) histone H2A.Z is one of the more extensively studied variant members of the core histone H2A family, which consists of many replication dependent (RD) members. The protein has been shown to be indispensable for survival, and involved in multiple roles from DNA damage to chromosome segregation, replication, and transcription. However, its functional involvement in gene expression is controversial. Moreover, the variant in several groups of metazoan organisms consists of two main isoforms (H2A.Z-1 and H2A.Z-2) that differ in a few (3–6) amino acids. They comprise the main topic of this review, starting from the events that led to their identification, what is currently known about them, followed by further experimental, structural, and functional insight into their roles. Despite their structural differences, a direct correlation to their functional variability remains enigmatic. As all of this is being elucidated, it appears that a strong functional involvement of isoform variability may be connected to development.
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Affiliation(s)
- Manjinder S. Cheema
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC V8W 3P6, Canada; (M.S.C.); (K.V.G.); (B.K.); (C.O.); (M.E.F.); (P.L.H.); (D.D.D.)
| | - Katrina V. Good
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC V8W 3P6, Canada; (M.S.C.); (K.V.G.); (B.K.); (C.O.); (M.E.F.); (P.L.H.); (D.D.D.)
| | - Bohyun Kim
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC V8W 3P6, Canada; (M.S.C.); (K.V.G.); (B.K.); (C.O.); (M.E.F.); (P.L.H.); (D.D.D.)
| | - Heddy Soufari
- Institut Européen de Chimie et Biologie, Univ. Bordeaux, 2 rue Robert Escarpit, F-33607 Pessac, France; (H.S.); (C.D.M.)
- Inserm U1212, CNRS UMR 5320, ARNA Laboratory, Univ. Bordeaux, 146 rue Léo Saignat, F-33076 Bordeaux, France
| | - Connor O’Sullivan
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC V8W 3P6, Canada; (M.S.C.); (K.V.G.); (B.K.); (C.O.); (M.E.F.); (P.L.H.); (D.D.D.)
| | - Melissa E. Freeman
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC V8W 3P6, Canada; (M.S.C.); (K.V.G.); (B.K.); (C.O.); (M.E.F.); (P.L.H.); (D.D.D.)
| | - Gilda Stefanelli
- Department of Neurosciences & Mental Health, the Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; (G.S.); (I.B.Z.)
| | - Ciro Rivera Casas
- Environmental Epigenetics Group, Department of Biological Sciences, Florida International UniversityNorth Miami, FL 33181, USA; (C.R.C.); (J.M.E.L.)
| | - Kristine E. Zengeler
- Department of Chemistry and Biochemistry, Bates College, 2 Andrews Road, Lewiston, ME 04240, USA; (K.E.Z.); (A.J.K.)
| | - Andrew J. Kennedy
- Department of Chemistry and Biochemistry, Bates College, 2 Andrews Road, Lewiston, ME 04240, USA; (K.E.Z.); (A.J.K.)
| | - Jose Maria Eirin Lopez
- Environmental Epigenetics Group, Department of Biological Sciences, Florida International UniversityNorth Miami, FL 33181, USA; (C.R.C.); (J.M.E.L.)
| | - Perry L. Howard
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC V8W 3P6, Canada; (M.S.C.); (K.V.G.); (B.K.); (C.O.); (M.E.F.); (P.L.H.); (D.D.D.)
| | - Iva B. Zovkic
- Department of Neurosciences & Mental Health, the Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; (G.S.); (I.B.Z.)
- Department of Psychology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
| | - Jeffrey Shabanowitz
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA; (J.S.); (D.F.H.)
| | - Deanna D. Dryhurst
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC V8W 3P6, Canada; (M.S.C.); (K.V.G.); (B.K.); (C.O.); (M.E.F.); (P.L.H.); (D.D.D.)
| | - Donald F. Hunt
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA; (J.S.); (D.F.H.)
- Department of Pathology, University of Virginia, Charlottesville, VA 22903, USA
| | - Cameron D. Mackereth
- Institut Européen de Chimie et Biologie, Univ. Bordeaux, 2 rue Robert Escarpit, F-33607 Pessac, France; (H.S.); (C.D.M.)
- Inserm U1212, CNRS UMR 5320, ARNA Laboratory, Univ. Bordeaux, 146 rue Léo Saignat, F-33076 Bordeaux, France
| | - Juan Ausió
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC V8W 3P6, Canada; (M.S.C.); (K.V.G.); (B.K.); (C.O.); (M.E.F.); (P.L.H.); (D.D.D.)
- Correspondence: ; Tel.: +1-250-721-8863; Fax: +1-250-721-8855
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31
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Lamaa A, Humbert J, Aguirrebengoa M, Cheng X, Nicolas E, Côté J, Trouche D. Integrated analysis of H2A.Z isoforms function reveals a complex interplay in gene regulation. eLife 2020; 9:53375. [PMID: 32109204 PMCID: PMC7048395 DOI: 10.7554/elife.53375] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 02/12/2020] [Indexed: 12/13/2022] Open
Abstract
The H2A.Z histone variant plays major roles in the control of gene expression. In human, H2A.Z is encoded by two genes expressing two isoforms, H2A.Z.1 and H2A.Z.2 differing by three amino acids. Here, we undertook an integrated analysis of their functions in gene expression using endogenously-tagged proteins. RNA-Seq analysis in untransformed cells showed that they can regulate both distinct and overlapping sets of genes positively or negatively in a context-dependent manner. Furthermore, they have similar or antagonistic function depending on genes. H2A.Z.1 and H2A.Z.2 can replace each other at Transcription Start Sites, providing a molecular explanation for this interplay. Mass spectrometry analysis showed that H2A.Z.1 and H2A.Z.2 have specific interactors, which can mediate their functional antagonism. Our data indicate that the balance between H2A.Z.1 and H2A.Z.2 at promoters is critically important to regulate specific gene expression, providing an additional layer of complexity to the control of gene expression by histone variants.
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Affiliation(s)
- Assala Lamaa
- LBCMCP, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Jonathan Humbert
- St-Patrick Research Group in Basic Oncology, Laval University Cancer Research Center and Oncology Division of CHU de Québec-Université Laval Research Center, Quebec, Canada
| | - Marion Aguirrebengoa
- BigA Core Facility, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Xue Cheng
- St-Patrick Research Group in Basic Oncology, Laval University Cancer Research Center and Oncology Division of CHU de Québec-Université Laval Research Center, Quebec, Canada
| | - Estelle Nicolas
- LBCMCP, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Jacques Côté
- St-Patrick Research Group in Basic Oncology, Laval University Cancer Research Center and Oncology Division of CHU de Québec-Université Laval Research Center, Quebec, Canada
| | - Didier Trouche
- LBCMCP, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, Toulouse, France
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