1
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Teresa BGD, Ayala-Zambrano C, González-Suárez M, Molina B, Torres L, Rodríguez A, Frías S. Reversion from basal histone H4 hypoacetylation at the replication fork increases DNA damage in FANCA deficient cells. PLoS One 2024; 19:e0298032. [PMID: 38820384 PMCID: PMC11142588 DOI: 10.1371/journal.pone.0298032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 01/16/2024] [Indexed: 06/02/2024] Open
Abstract
The FA/BRCA pathway safeguards DNA replication by repairing interstrand crosslinks (ICL) and maintaining replication fork stability. Chromatin structure, which is in part regulated by histones posttranslational modifications (PTMs), has a role in maintaining genomic integrity through stabilization of the DNA replication fork and promotion of DNA repair. An appropriate balance of PTMs, especially acetylation of histones H4 in nascent chromatin, is required to preserve a stable DNA replication fork. To evaluate the acetylation status of histone H4 at the replication fork of FANCA deficient cells, we compared histone acetylation status at the DNA replication fork of isogenic FANCA deficient and FANCA proficient cell lines by using accelerated native immunoprecipitation of nascent DNA (aniPOND) and in situ protein interactions in the replication fork (SIRF) assays. We found basal hypoacetylation of multiple residues of histone H4 in FA replication forks, together with increased levels of Histone Deacetylase 1 (HDAC1). Interestingly, high-dose short-term treatment with mitomycin C (MMC) had no effect over H4 acetylation abundance at the replication fork. However, chemical inhibition of histone deacetylases (HDAC) with Suberoylanilide hydroxamic acid (SAHA) induced acetylation of the FANCA deficient DNA replication forks to levels comparable to their isogenic control counterparts. This forced permanence of acetylation impacted FA cells homeostasis by inducing DNA damage and promoting G2 cell cycle arrest. Altogether, this caused reduced RAD51 foci formation and increased markers of replication stress, including phospho-RPA-S33. Hypoacetylation of the FANCA deficient replication fork, is part of the cellular phenotype, the perturbation of this feature by agents that prevent deacetylation, such as SAHA, have a deleterious effect over the delicate equilibrium they have reached to perdure despite a defective FA/BRCA pathway.
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Affiliation(s)
- Benilde García-de Teresa
- Laboratorio de Citogenética, Instituto Nacional de Pediatría, Mexico City, Ciudad de México, Mexico
- Doctorado en Ciencias Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Ciudad de México, Mexico
| | - Cecilia Ayala-Zambrano
- Laboratorio de Citogenética, Instituto Nacional de Pediatría, Mexico City, Ciudad de México, Mexico
- Doctorado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Mexico City, Ciudad de México, Mexico
| | - Mirna González-Suárez
- Laboratorio de Citogenética, Instituto Nacional de Pediatría, Mexico City, Ciudad de México, Mexico
| | - Bertha Molina
- Laboratorio de Citogenética, Instituto Nacional de Pediatría, Mexico City, Ciudad de México, Mexico
| | - Leda Torres
- Laboratorio de Citogenética, Instituto Nacional de Pediatría, Mexico City, Ciudad de México, Mexico
| | - Alfredo Rodríguez
- Laboratorio de Falla Medular y Carcinogénesis, Unidad de Genética de la Nutrición, Instituto Nacional de Pediatría, Mexico City, Ciudad de México, Mexico
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Mexico City, Ciudad de México, Mexico
| | - Sara Frías
- Laboratorio de Citogenética, Instituto Nacional de Pediatría, Mexico City, Ciudad de México, Mexico
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Mexico City, Ciudad de México, Mexico
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2
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Phillips M, Malone KL, Boyle BW, Montgomery C, Kressy IA, Joseph FM, Bright KM, Boyson SP, Chang S, Nix JC, Young NL, Jeffers V, Frietze S, Glass KC. Impact of Combinatorial Histone Modifications on Acetyllysine Recognition by the ATAD2 and ATAD2B Bromodomains. J Med Chem 2024; 67:8186-8200. [PMID: 38733345 PMCID: PMC11149620 DOI: 10.1021/acs.jmedchem.4c00210] [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] [Indexed: 05/13/2024]
Abstract
The ATPase family AAA+ domain containing 2 (ATAD2) protein and its paralog ATAD2B have a C-terminal bromodomain (BRD) that functions as a reader of acetylated lysine residues on histone proteins. Using a structure-function approach, we investigated the ability of the ATAD2/B BRDs to select acetylated lysine among multiple histone post-translational modifications. The ATAD2B BRD can bind acetylated histone ligands that also contain adjacent methylation or phosphorylation marks, while the presence of these modifications significantly weakened the acetyllysine binding activity of the ATAD2 BRD. Our structural studies provide mechanistic insights into how ATAD2/B BRD-binding pocket residues coordinate the acetyllysine group in the context of adjacent post-translational modifications. Furthermore, we investigated how sequence changes in amino acids of the histone ligands impact the recognition of an adjacent acetyllysine residue. Our study highlights how the interplay between multiple combinations of histone modifications influences the reader activity of the ATAD2/B BRDs, resulting in distinct binding modes.
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Affiliation(s)
- Margaret Phillips
- Department of Pharmacology, Larner College of Medicine, University of Vermont, Burlington, Vermont 05405, United States
- Department of Pharmaceutical Sciences, Albany College of Pharmacy and Health Sciences, Colchester, Vermont 05446, United States
| | - Kiera L Malone
- Department of Pharmacology, Larner College of Medicine, University of Vermont, Burlington, Vermont 05405, United States
| | - Brian W Boyle
- Department of Pharmacology, Larner College of Medicine, University of Vermont, Burlington, Vermont 05405, United States
| | - Cameron Montgomery
- Department of Pharmaceutical Sciences, Albany College of Pharmacy and Health Sciences, Colchester, Vermont 05446, United States
| | - Isabelle A Kressy
- Department of Pharmacology, Larner College of Medicine, University of Vermont, Burlington, Vermont 05405, United States
| | - Faith M Joseph
- Verna & Marrs McLean Department of Biochemistry & Molecular Pharmacology, Baylor College of Medicine, Houston, Texas 77030, United States
- Translational Biology and Molecular Medicine Graduate Program, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Kathleen M Bright
- Department of Biomedical and Health Sciences, University of Vermont, Burlington, Vermont 05405, United States
| | - Samuel P Boyson
- Department of Pharmaceutical Sciences, Albany College of Pharmacy and Health Sciences, Colchester, Vermont 05446, United States
| | - Sunsik Chang
- Department of Pharmaceutical Sciences, Albany College of Pharmacy and Health Sciences, Colchester, Vermont 05446, United States
| | - Jay C Nix
- Molecular Biology Consortium, Advanced Light Source, Berkeley, California 94720, United States
| | - Nicolas L Young
- Verna & Marrs McLean Department of Biochemistry & Molecular Pharmacology, Baylor College of Medicine, Houston, Texas 77030, United States
- Translational Biology and Molecular Medicine Graduate Program, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Victoria Jeffers
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, New Hampshire 03824, United States
| | - Seth Frietze
- Department of Biomedical and Health Sciences, University of Vermont, Burlington, Vermont 05405, United States
| | - Karen C Glass
- Department of Pharmacology, Larner College of Medicine, University of Vermont, Burlington, Vermont 05405, United States
- Department of Pharmaceutical Sciences, Albany College of Pharmacy and Health Sciences, Colchester, Vermont 05446, United States
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3
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Lee PWT, Koseki LR, Haitani T, Harada H, Kobayashi M. Hypoxia-Inducible Factor-Dependent and Independent Mechanisms Underlying Chemoresistance of Hypoxic Cancer Cells. Cancers (Basel) 2024; 16:1729. [PMID: 38730681 PMCID: PMC11083728 DOI: 10.3390/cancers16091729] [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: 04/18/2024] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
In hypoxic regions of malignant solid tumors, cancer cells acquire resistance to conventional therapies, such as chemotherapy and radiotherapy, causing poor prognosis in patients with cancer. It is widely recognized that some of the key genes behind this are hypoxia-inducible transcription factors, e.g., hypoxia-inducible factor 1 (HIF-1). Since HIF-1 activity is suppressed by two representative 2-oxoglutarate-dependent dioxygenases (2-OGDDs), PHDs (prolyl-4-hydroxylases), and FIH-1 (factor inhibiting hypoxia-inducible factor 1), the inactivation of 2-OGDD has been associated with cancer therapy resistance by the activation of HIF-1. Recent studies have also revealed the importance of hypoxia-responsive mechanisms independent of HIF-1 and its isoforms (collectively, HIFs). In this article, we collate the accumulated knowledge of HIF-1-dependent and independent mechanisms responsible for resistance of hypoxic cancer cells to anticancer drugs and briefly discuss the interplay between hypoxia responses, like EMT and UPR, and chemoresistance. In addition, we introduce a novel HIF-independent mechanism, which is epigenetically mediated by an acetylated histone reader protein, ATAD2, which we recently clarified.
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Affiliation(s)
- Peter Wai Tik Lee
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan (L.R.K.)
| | - Lina Rochelle Koseki
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan (L.R.K.)
| | - Takao Haitani
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan (L.R.K.)
- Department of Genome Repair Dynamics, Radiation Biology Center, Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan
- Department of Urology, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Hiroshi Harada
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan (L.R.K.)
- Department of Genome Repair Dynamics, Radiation Biology Center, Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan
| | - Minoru Kobayashi
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan (L.R.K.)
- Department of Genome Repair Dynamics, Radiation Biology Center, Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan
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4
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Kustatscher G, Hödl M, Rullmann E, Grabowski P, Fiagbedzi E, Groth A, Rappsilber J. Higher-order modular regulation of the human proteome. Mol Syst Biol 2023; 19:e9503. [PMID: 36891684 PMCID: PMC10167480 DOI: 10.15252/msb.20209503] [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: 02/06/2020] [Revised: 02/08/2023] [Accepted: 02/14/2023] [Indexed: 03/10/2023] Open
Abstract
Operons are transcriptional modules that allow bacteria to adapt to environmental changes by coordinately expressing the relevant set of genes. In humans, biological pathways and their regulation are more complex. If and how human cells coordinate the expression of entire biological processes is unclear. Here, we capture 31 higher-order co-regulation modules, which we term progulons, by help of supervised machine-learning on proteomics data. Progulons consist of dozens to hundreds of proteins that together mediate core cellular functions. They are not restricted to physical interactions or co-localisation. Progulon abundance changes are primarily controlled at the level of protein synthesis and degradation. Implemented as a web app at www.proteomehd.net/progulonFinder, our approach enables the targeted search for progulons of specific cellular processes. We use it to identify a DNA replication progulon and reveal multiple new replication factors, validated by extensive phenotyping of siRNA-induced knockdowns. Progulons provide a new entry point into the molecular understanding of biological processes.
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Affiliation(s)
- Georg Kustatscher
- Wellcome Centre for Cell Biology, University of Edinburgh, Edinburgh, UK
| | - Martina Hödl
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Edward Rullmann
- Bioanalytics, Institute of Biotechnology, Technische Universität Berlin, Berlin, Germany
| | - Piotr Grabowski
- Bioanalytics, Institute of Biotechnology, Technische Universität Berlin, Berlin, Germany.,Data Sciences and Artificial Intelligence, Clinical Pharmacology & Safety Sciences, IMED Biotech Unit, AstraZeneca, Cambridge, UK
| | - Emmanuel Fiagbedzi
- Wellcome Centre for Cell Biology, University of Edinburgh, Edinburgh, UK
| | - Anja Groth
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Novo Nordisk Foundation Center for Protein Research (CPR), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Juri Rappsilber
- Wellcome Centre for Cell Biology, University of Edinburgh, Edinburgh, UK.,Bioanalytics, Institute of Biotechnology, Technische Universität Berlin, Berlin, Germany
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5
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Alvarez V, Bandau S, Jiang H, Rios-Szwed D, Hukelmann J, Garcia-Wilson E, Wiechens N, Griesser E, Ten Have S, Owen-Hughes T, Lamond A, Alabert C. Proteomic profiling reveals distinct phases to the restoration of chromatin following DNA replication. Cell Rep 2023; 42:111996. [PMID: 36680776 DOI: 10.1016/j.celrep.2023.111996] [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: 06/05/2022] [Revised: 08/12/2022] [Accepted: 01/03/2023] [Indexed: 01/21/2023] Open
Abstract
Chromatin organization must be maintained during cell proliferation to preserve cellular identity and genome integrity. However, DNA replication results in transient displacement of DNA-bound proteins, and it is unclear how they regain access to newly replicated DNA. Using quantitative proteomics coupled to Nascent Chromatin Capture or isolation of Proteins on Nascent DNA, we provide time-resolved binding kinetics for thousands of proteins behind replisomes within euchromatin and heterochromatin in human cells. This shows that most proteins regain access within minutes to newly replicated DNA. In contrast, 25% of the identified proteins do not, and this delay cannot be inferred from their known function or nuclear abundance. Instead, chromatin organization and G1 phase entry affect their reassociation. Finally, DNA replication not only disrupts but also promotes recruitment of transcription factors and chromatin remodelers, providing a significant advance in understanding how DNA replication could contribute to programmed changes of cell memory.
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Affiliation(s)
- Vanesa Alvarez
- Division of Molecular, Cell, and Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK
| | - Susanne Bandau
- Division of Molecular, Cell, and Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK
| | - Hao Jiang
- Laboratory of Quantitative Proteomics, Division of Molecular, Cell, and Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK
| | - Diana Rios-Szwed
- Division of Molecular, Cell, and Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK
| | - Jens Hukelmann
- Laboratory of Quantitative Proteomics, Division of Molecular, Cell, and Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK
| | - Elisa Garcia-Wilson
- Division of Molecular, Cell, and Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK
| | - Nicola Wiechens
- Laboratory of Chromatin Remodelling and Cancer Epigenetics, Division of Molecular, Cell & Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK
| | - Eva Griesser
- Laboratory of Quantitative Proteomics, Division of Molecular, Cell, and Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK
| | - Sara Ten Have
- Laboratory of Quantitative Proteomics, Division of Molecular, Cell, and Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK
| | - Tom Owen-Hughes
- Laboratory of Chromatin Remodelling and Cancer Epigenetics, Division of Molecular, Cell & Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK
| | - Angus Lamond
- Laboratory of Quantitative Proteomics, Division of Molecular, Cell, and Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK
| | - Constance Alabert
- Division of Molecular, Cell, and Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK.
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6
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Lazarchuk P, Nguyen VN, Brunon S, Pavlova MN, Sidorova JM. Innate immunity mediator STING modulates nascent DNA metabolism at stalled forks in human cells. Front Mol Biosci 2023; 9:1048726. [PMID: 36710880 PMCID: PMC9877313 DOI: 10.3389/fmolb.2022.1048726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 12/29/2022] [Indexed: 01/15/2023] Open
Abstract
Background: The cGAS/STING pathway, part of the innate immune response to foreign DNA, can be activated by cell's own DNA arising from the processing of the genome, including the degradation of nascent DNA at arrested replication forks, which can be upregulated in cancer cells. Recent evidence raises a possibility that the cGAS/STING pathway may also modulate the very processes that trigger it, e.g., DNA damage repair or processing of stalled forks. Methods: We manipulated STING levels in human cells by depleting or re-expressing it, and assessed the effects of STING on replication using microfluidics-assisted replication track analysis, or maRTA, a DNA fiber assay, as well as immuno-precipitation of nascent DNA, or iPOND. We also assessed STING subcellular distribution and its ability to activate. Results: Depletion of STING suppressed and its re-expression in STING-deficient cancer cells upregulated the degradation of nascent DNA at arrested replication forks. Replication fork arrest was accompanied by the STING pathway activation, and a STING mutant that does not activate the pathway failed to upregulate nascent DNA degradation. cGAS was required for STING's effect on degradation, but this requirement could be bypassed by treating cells with a STING agonist. Cells expressing inactive STING had a reduced level of RPA on parental and nascent DNA of arrested forks and a reduced CHK1 activation compared to cells with the wild type STING. STING also affected unperturbed fork progression in a subset of cell lines. STING fractionated to the nuclear fractions enriched for structural components of chromatin and nuclear envelope, and furthermore, it associated with the chromatin of arrested replication forks as well as post-replicative chromatin. Conclusion: Our data highlight STING as a determinant of stalled replication fork integrity, thus revealing a novel connection between the replication stress and innate immune responses.
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Affiliation(s)
| | | | | | | | - Julia M. Sidorova
- Department of Laboratory Medicine and Pathology, University of Washington School of Medicine, Seattle, WA, United States
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7
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A targetable MYBL2-ATAD2 axis governs cell proliferation in ovarian cancer. Cancer Gene Ther 2023; 30:192-208. [PMID: 36151333 DOI: 10.1038/s41417-022-00538-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 08/25/2022] [Accepted: 09/12/2022] [Indexed: 01/19/2023]
Abstract
The chromatin-modifying enzyme ATAD2 confers oncogenic competence and proliferative advantage in malignances. We previously identified ATAD2 as a marker and driver of cell proliferation in ovarian cancer (OC); however, the mechanisms whereby ATAD2 is regulated and involved in cell proliferation are still unclear. Here, we disclose that ATAD2 displays a classical G2/M gene signature, functioning to facilitate mitotic progression. ATAD2 ablation caused mitotic arrest and decreased the ability of OC cells to pass through nocodazole-arrested mitosis. ChIP-seq data analyses demonstrated that DREAM and MYBL2-MuvB (MMB), two switchable MuvB-based complexes, bind the CHR elements in the ATAD2 promoter, representing a typical feature and principle mechanism of the periodic regulation of G2/M genes. As a downstream target of MYBL2, ATAD2 deletion significantly impaired MYBL2-driven cell proliferation. Intriguingly, ATAD2 silencing also fed back to destabilize the MYBL2 protein. The significant coexpression of MYBL2 and ATAD2 at both the bulk tissue and single-cell levels highlights the existence of the MYBL2-ATAD2 signaling in OC patients. This signaling is activated during tumorigenesis and correlated with TP53 mutation, and its hyperactivation was found especially in high-grade serous and drug-resistant OCs. Disrupting this signaling by CRISPR/Cas9-mediated ATAD2 ablation inhibited the in vivo growth of OC in a subcutaneous tumor xenograft mouse model, while pharmacologically targeting this signaling with an ATAD2 inhibitor demonstrated high therapeutic efficacy in both drug-sensitive and drug-resistant OC cells. Collectively, we identified a novel MYBL2-ATAD2 proliferative signaling axis and highlighted its potential application in developing new therapeutic strategies, especially for high-grade serous and drug-resistant OCs.
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8
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Shukla S, Lazarchuk P, Pavlova MN, Sidorova JM. Genome-wide survey of D/E repeats in human proteins uncovers their instability and aids in identifying their role in the chromatin regulator ATAD2. iScience 2022; 25:105464. [PMCID: PMC9672403 DOI: 10.1016/j.isci.2022.105464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/03/2022] [Accepted: 10/26/2022] [Indexed: 11/15/2022] Open
Abstract
D/E repeats are stretches of aspartic and/or glutamic acid residues found in over 150 human proteins. We examined genomic stability of D/E repeats and functional characteristics of D/E repeat-containing proteins vis-à-vis the proteins with poly-Q or poly-A repeats, which are known to undergo pathologic expansions. Mining of tumor sequencing data revealed that D/E repeat-coding regions are similar to those coding poly-Qs and poly-As in increased incidence of trinucleotide insertions/deletions but differ in types and incidence of substitutions. D/E repeat-containing proteins preferentially function in chromatin metabolism and are the more likely to be nuclear and interact with core histones, the longer their repeats are. One of the longest D/E repeats of unknown function is in ATAD2, a bromodomain family ATPase frequently overexpressed in tumors. We demonstrate that D/E repeat deletion in ATAD2 suppresses its binding to nascent and mature chromatin and to the constitutive pericentromeric heterochromatin, where ATAD2 represses satellite transcription. Many human proteins contain runs of aspartic/glutamic acid residues (D/E repeats) D/E repeats show increased incidence of in-frame insertions/deletions in tumors Nuclear and histone-interacting proteins often have long D/E repeats D/E repeat of the oncogene ATAD2 controls its binding to pericentric chromatin
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Affiliation(s)
- Shalabh Shukla
- Department of Laboratory Medicine and Pathology, University of Washington, 1959 NE Pacific St., Box 357705, Seattle, WA 98195, USA
| | - Pavlo Lazarchuk
- Department of Laboratory Medicine and Pathology, University of Washington, 1959 NE Pacific St., Box 357705, Seattle, WA 98195, USA
| | - Maria N. Pavlova
- Department of Laboratory Medicine and Pathology, University of Washington, 1959 NE Pacific St., Box 357705, Seattle, WA 98195, USA
| | - Julia M. Sidorova
- Department of Laboratory Medicine and Pathology, University of Washington, 1959 NE Pacific St., Box 357705, Seattle, WA 98195, USA
- Corresponding author
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9
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Quaas CE, Lin B, Long DT. Transcription suppression is mediated by the HDAC1-Sin3 complex in Xenopus nucleoplasmic extract. J Biol Chem 2022; 298:102578. [PMID: 36220390 PMCID: PMC9650048 DOI: 10.1016/j.jbc.2022.102578] [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: 02/28/2022] [Revised: 09/24/2022] [Accepted: 10/05/2022] [Indexed: 11/09/2022] Open
Abstract
Modification of histones provides a dynamic mechanism to regulate chromatin structure and access to DNA. Histone acetylation, in particular, plays a prominent role in controlling the interaction between DNA, histones, and other chromatin-associated proteins. Defects in histone acetylation patterns interfere with normal gene expression and underlie a wide range of human diseases. Here, we utilize Xenopus egg extracts to investigate how changes in histone acetylation influence transcription of a defined gene construct. We show that inhibition of histone deacetylase 1 and 2 (HDAC1/2) specifically counteracts transcription suppression by preventing chromatin compaction and deacetylation of histone residues H4K5 and H4K8. Acetylation of these sites supports binding of the chromatin reader and transcription regulator BRD4. We also identify HDAC1 as the primary driver of transcription suppression and show that this activity is mediated through the Sin3 histone deacetylase complex. These findings highlight functional differences between HDAC1 and HDAC2, which are often considered to be functionally redundant, and provide additional molecular context for their activity.
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10
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Haitani T, Kobayashi M, Koyasu S, Akamatsu S, Suwa T, Onodera Y, Nam JM, Nguyen PTL, Menju T, Date H, Ogawa O, Harada H. Proteolysis of a histone acetyl reader, ATAD2, induces chemoresistance of cancer cells under severe hypoxia by inhibiting cell cycle progression in S phase. Cancer Lett 2022; 528:76-84. [PMID: 34973392 DOI: 10.1016/j.canlet.2021.12.028] [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: 04/19/2021] [Revised: 12/01/2021] [Accepted: 12/26/2021] [Indexed: 11/27/2022]
Abstract
Cancer cells acquire chemoresistance in hypoxic regions of solid tumors, which is suggested to be at least partly due to reduction of their proliferative activity. However, molecular mechanisms behind it have not been fully elucidated. Here, we revealed the importance of active proteolysis of a histone acetylation reader, ATPase family AAA domain containing 2 (ATAD2), under hypoxia. We found that inactivation of an O2/Fe2+/α-ketoglutarate-dependent dioxygenase triggered ATAD2 proteolysis by the proteasome system upon severe hypoxia in a hypoxia-inducible factors (HIFs)-independent manner. Consistently, ATAD2 expression levels were markedly lower in perinecrotic hypoxic regions in both xenografted and clinical tumor tissues. The ATAD2 proteolysis was accompanied by a decrease in the amount of acetylated histone H3 lysine 27 and inhibited cell cycle progression from the early to late S phase under severe hypoxia. The retardation of S phase progression induced chemoresistance, which was blocked by overexpression of ATAD2. Together, these results indicate that ATAD2 proteolysis upon severe hypoxia induces chemoresistance of cancer cells through heterochromatinization and the subsequent retardation of S phase progression; therefore, inhibition of ATAD2 proteolysis is expected to be a strategy to overcome chemoresistance of hypoxic tumor cells.
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Affiliation(s)
- Takao Haitani
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan; Department of Genome Dynamics, Radiation Biology Center, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan; Department of Urology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Minoru Kobayashi
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan; Department of Genome Dynamics, Radiation Biology Center, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Sho Koyasu
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan; Department of Genome Dynamics, Radiation Biology Center, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan; Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8904, Japan
| | - Shusuke Akamatsu
- Department of Urology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Tatsuya Suwa
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan; Department of Genome Dynamics, Radiation Biology Center, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan; Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan
| | - Yasuhito Onodera
- Global Center for Biomedical Science and Engineering, Faculty of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Jin-Min Nam
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan; Department of Genome Dynamics, Radiation Biology Center, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Phuong Thi Lien Nguyen
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan; Department of Genome Dynamics, Radiation Biology Center, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Toshi Menju
- Department of Thoracic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan
| | - Hiroshi Date
- Department of Thoracic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan
| | - Osamu Ogawa
- Department of Urology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Hiroshi Harada
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan; Department of Genome Dynamics, Radiation Biology Center, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
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11
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Souza MDA, Ramos-Sanchez EM, Muxel SM, Lagos D, Reis LC, Pereira VRA, Brito MEF, Zampieri RA, Kaye PM, Floeter-Winter LM, Goto H. miR-548d-3p Alters Parasite Growth and Inflammation in Leishmania (Viannia) braziliensis Infection. Front Cell Infect Microbiol 2021; 11:687647. [PMID: 34178725 PMCID: PMC8224172 DOI: 10.3389/fcimb.2021.687647] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/24/2021] [Indexed: 12/21/2022] Open
Abstract
American Tegumentary Leishmaniasis (ATL) is an endemic disease in Latin America, mainly caused in Brazil by Leishmania (Viannia) braziliensis. Clinical manifestations vary from mild, localized cutaneous leishmaniasis (CL) to aggressive mucosal disease. The host immune response strongly determines the outcome of infection and pattern of disease. However, the pathogenesis of ATL is not well understood, and host microRNAs (miRNAs) may have a role in this context. In the present study, miRNAs were quantified using qPCR arrays in human monocytic THP-1 cells infected in vitro with L. (V.) braziliensis promastigotes and in plasma from patients with ATL, focusing on inflammatory response-specific miRNAs. Patients with active or self-healed cutaneous leishmaniasis patients, with confirmed parasitological or immunological diagnosis, were compared with healthy controls. Computational target prediction of significantly-altered miRNAs from in vitro L. (V.) braziliensis-infected THP-1 cells revealed predicted targets involved in diverse pathways, including chemokine signaling, inflammatory, cellular proliferation, and tissue repair processes. In plasma, we observed distinct miRNA expression in patients with self-healed and active lesions compared with healthy controls. Some miRNAs dysregulated during THP-1 in vitro infection were also found in plasma from self-healed patients, including miR-548d-3p, which was upregulated in infected THP-1 cells and in plasma from self-healed patients. As miR-548d-3p was predicted to target the chemokine pathway and inflammation is a central to the pathogenesis of ATL, we evaluated the effect of transient transfection of a miR-548d-3p inhibitor on L. (V.) braziliensis infected-THP-1 cells. Inhibition of miR-548d-3p reduced parasite growth early after infection and increased production of MCP1/CCL2, RANTES/CCL5, and IP10/CXCL10. In plasma of self-healed patients, MCP1/CCL2, RANTES/CCL5, and IL-8/CXCL8 concentrations were significantly decreased and MIG/CXCL9 and IP-10/CXCL10 increased compared to patients with active disease. These data suggest that by modulating miRNAs, L. (V.) braziliensis may interfere with chemokine production and hence the inflammatory processes underpinning lesion resolution. Our data suggest miR-548d-3p could be further evaluated as a prognostic marker for ATL and/or as a host-directed therapeutic target.
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Affiliation(s)
- Marina de Assis Souza
- Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de São Paulo (IMTSP/USP), São Paulo, Brazil
| | - Eduardo Milton Ramos-Sanchez
- Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de São Paulo (IMTSP/USP), São Paulo, Brazil.,Departamento de Salud Publica, Facultad de Ciencias de La Salud, Universidad Nacional Toribio Rodriguez de Mendoza de Amazonas, Chachapoyas, Peru
| | | | - Dimitris Lagos
- York Biomedical Research Institute, Hull York Medical School, University of York, York, United Kingdom
| | - Luiza Campos Reis
- Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de São Paulo (IMTSP/USP), São Paulo, Brazil
| | | | | | | | - Paul Martin Kaye
- York Biomedical Research Institute, Hull York Medical School, University of York, York, United Kingdom
| | | | - Hiro Goto
- Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de São Paulo (IMTSP/USP), São Paulo, Brazil.,Departamento de Medicina Preventiva, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
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12
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Agudelo Garcia PA, Lovejoy CM, Nagarajan P, Park D, Popova LV, Freitas MA, Parthun MR. Histone acetyltransferase 1 is required for DNA replication fork function and stability. J Biol Chem 2020; 295:8363-8373. [PMID: 32366460 DOI: 10.1074/jbc.ra120.013496] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/28/2020] [Indexed: 01/20/2023] Open
Abstract
The replisome is a protein complex on the DNA replication fork and functions in a dynamic environment at the intersection of parental and nascent chromatin. Parental nucleosomes are disrupted in front of the replication fork. The daughter DNA duplexes are packaged with an equal amount of parental and newly synthesized histones in the wake of the replication fork through the activity of the replication-coupled chromatin assembly pathway. Histone acetyltransferase 1 (HAT1) is responsible for the cytosolic diacetylation of newly synthesized histone H4 on lysines 5 and 12, which accompanies replication-coupled chromatin assembly. Here, using proximity ligation assay-based chromatin assembly assays and DNA fiber analysis, we analyzed the role of murine HAT1 in replication-coupled chromatin assembly. We demonstrate that HAT1 physically associates with chromatin near DNA replication sites. We found that the association of HAT1 with newly replicated DNA is transient, but can be stabilized by replication fork stalling. The association of HAT1 with nascent chromatin may be functionally relevant, as HAT1 loss decreased replication fork progression and increased replication fork stalling. Moreover, in the absence of HAT1, stalled replication forks were unstable, and newly synthesized DNA became susceptible to MRE11-dependent degradation. These results suggest that HAT1 links replication fork function to the proper processing and assembly of newly synthesized histones.
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Affiliation(s)
- Paula A Agudelo Garcia
- Department of Biological Chemistry and Pharmacology, the Ohio State University, Columbus, Ohio, USA
| | - Callie M Lovejoy
- Department of Biological Chemistry and Pharmacology, the Ohio State University, Columbus, Ohio, USA
| | - Prabakaran Nagarajan
- Department of Biological Chemistry and Pharmacology, the Ohio State University, Columbus, Ohio, USA
| | - Dongju Park
- Department of Cancer Biology and Genetics, the Ohio State University, Columbus, Ohio, USA
| | - Liudmila V Popova
- Department of Biological Chemistry and Pharmacology, the Ohio State University, Columbus, Ohio, USA
| | - Michael A Freitas
- Department of Cancer Biology and Genetics, the Ohio State University, Columbus, Ohio, USA
| | - Mark R Parthun
- Department of Biological Chemistry and Pharmacology, the Ohio State University, Columbus, Ohio, USA
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