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Llorens-Agost M, Ensminger M, Le HP, Gawai A, Liu J, Cruz-García A, Bhetawal S, Wood RD, Heyer WD, Löbrich M. Publisher Correction: POLθ-mediated end joining is restricted by RAD52 and BRCA2 until the onset of mitosis. Nat Cell Biol 2021; 24:124. [PMID: 34707239 DOI: 10.1038/s41556-021-00797-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Marta Llorens-Agost
- Radiation Biology and DNA Repair, Technical University of Darmstadt, Darmstadt, Germany
| | - Michael Ensminger
- Radiation Biology and DNA Repair, Technical University of Darmstadt, Darmstadt, Germany
| | - Hang Phuong Le
- Department of Microbiology and Molecular Genetics, University of California, Davis, Davis, CA, USA
| | - Anugrah Gawai
- Radiation Biology and DNA Repair, Technical University of Darmstadt, Darmstadt, Germany
| | - Jie Liu
- Department of Microbiology and Molecular Genetics, University of California, Davis, Davis, CA, USA
| | - Andrés Cruz-García
- Radiation Biology and DNA Repair, Technical University of Darmstadt, Darmstadt, Germany
| | - Sarita Bhetawal
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Smithville, TX, USA
| | - Richard D Wood
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Smithville, TX, USA
| | - Wolf-Dietrich Heyer
- Department of Microbiology and Molecular Genetics, University of California, Davis, Davis, CA, USA
| | - Markus Löbrich
- Radiation Biology and DNA Repair, Technical University of Darmstadt, Darmstadt, Germany.
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Llorens-Agost M, Ensminger M, Le HP, Gawai A, Liu J, Cruz-García A, Bhetawal S, Wood RD, Heyer WD, Löbrich M. POLθ-mediated end joining is restricted by RAD52 and BRCA2 until the onset of mitosis. Nat Cell Biol 2021; 23:1095-1104. [PMID: 34616022 PMCID: PMC8675436 DOI: 10.1038/s41556-021-00764-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 08/30/2021] [Indexed: 01/25/2023]
Abstract
BRCA2-mutant cells are defective in homologous recombination, making them vulnerable to the inactivation of other pathways for the repair of DNA double-strand breaks (DSBs). This concept can be clinically exploited but is currently limited due to insufficient knowledge about how DSBs are repaired in the absence of BRCA2. We show that DNA polymerase θ (POLθ)-mediated end joining (TMEJ) repairs DSBs arising during the S phase in BRCA2-deficient cells only after the onset of the ensuing mitosis. This process is regulated by RAD52, whose loss causes the premature usage of TMEJ and the formation of chromosomal fusions. Purified RAD52 and BRCA2 proteins both block the DNA polymerase function of POLθ, suggesting a mechanism explaining their synthetic lethal relationships. We propose that the delay of TMEJ until mitosis ensures the conversion of originally one-ended DSBs into two-ended DSBs. Mitotic chromatin condensation might further serve to juxtapose correct break ends and limit chromosomal fusions.
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Affiliation(s)
- Marta Llorens-Agost
- Radiation Biology and DNA Repair, Technical University of Darmstadt, Darmstadt, Germany
| | - Michael Ensminger
- Radiation Biology and DNA Repair, Technical University of Darmstadt, Darmstadt, Germany
| | - Hang Phuong Le
- Department of Microbiology and Molecular Genetics, University of California, Davis, Davis, CA, USA
| | - Anugrah Gawai
- Radiation Biology and DNA Repair, Technical University of Darmstadt, Darmstadt, Germany
| | - Jie Liu
- Department of Microbiology and Molecular Genetics, University of California, Davis, Davis, CA, USA
| | - Andrés Cruz-García
- Radiation Biology and DNA Repair, Technical University of Darmstadt, Darmstadt, Germany
| | - Sarita Bhetawal
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Smithville, TX, USA
| | - Richard D Wood
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Smithville, TX, USA
| | - Wolf-Dietrich Heyer
- Department of Microbiology and Molecular Genetics, University of California, Davis, Davis, CA, USA
| | - Markus Löbrich
- Radiation Biology and DNA Repair, Technical University of Darmstadt, Darmstadt, Germany.
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Abstract
Homologous recombination is initiated by the so-called DNA end resection, the 5'-3' nucleolytic degradation of a single strand of the DNA at each side of the break. The presence of resected DNA is an obligatory step for homologous recombination. Moreover, the amount of resected DNA modulates the prevalence of different recombination pathways. In different model organisms, there are several published ways to visualize and measure with more or less detail the amount of DNA resected. In human cells, however, technical constraints hampered the study of resection at high resolution. Some information might be gathered from the study of endonuclease-created DSBs, in which the resection of breaks at known sites can be followed by PCR or ChIP. In this chapter, we describe in detail a novel assay to study DNA end resection in breaks located on unknown positions. Here, we use ionizing radiation to induce double-strand breaks, but the same approach can be used to monitor resection induced by different DNA damaging agents. By modifying the DNA-combing technique, used for high-resolution replication analyses, we can measure resection progression at the level of individual DNA fibers. Thus, we named the method Single Molecule Analysis of Resection Tracks (SMART). We use human cells in culture as a model system, but in principle the same approach would be feasible to any model organism adjusting accordingly the DNA isolation part of the protocol.
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Affiliation(s)
- Pablo Huertas
- Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Universidad de Sevilla-CSIC-Universidad Pablo de Olavide, E-41092, Sevilla, Spain.
| | - Andrés Cruz-García
- Centro Andaluz de Biología Molecular y Medicina Regenerativa-CABIMER, Universidad de Sevilla-CSIC-Universidad Pablo de Olavide, E-41092, Sevilla, Spain
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Huertas P, Cruz-García A. Speed matters: How subtle changes in DNA end resection rate affect repair. Mol Cell Oncol 2016; 2:e982964. [PMID: 27308460 PMCID: PMC4905430 DOI: 10.4161/23723556.2014.982964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 10/29/2014] [Accepted: 10/29/2014] [Indexed: 11/29/2022]
Abstract
The contribution of BRCA1 (breast cancer 1) to the repair of broken DNA is well established, but its real role at the molecular level is less well understood. By developing a new high-resolution, single-molecule technique, we have now shown that BRCA1 accelerates the processing of DNA breaks that subsequently engage in homologous recombination.
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Affiliation(s)
- Pablo Huertas
- Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER); Sevilla, Spain; Departamento de Genética; Universidad de Sevilla; Sevilla, Spain
| | - Andrés Cruz-García
- Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER); Sevilla, Spain; Departamento de Genética; Universidad de Sevilla; Sevilla, Spain
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Meir M, Galanty Y, Kashani L, Blank M, Khosravi R, Fernández-Ávila MJ, Cruz-García A, Star A, Shochot L, Thomas Y, Garrett LJ, Chamovitz DA, Bodine DM, Kurz T, Huertas P, Ziv Y, Shiloh Y. The COP9 signalosome is vital for timely repair of DNA double-strand breaks. Nucleic Acids Res 2015; 43:4517-30. [PMID: 25855810 PMCID: PMC4482063 DOI: 10.1093/nar/gkv270] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 03/16/2015] [Accepted: 03/17/2015] [Indexed: 01/07/2023] Open
Abstract
The DNA damage response is vigorously activated by DNA double-strand breaks (DSBs). The chief mobilizer of the DSB response is the ATM protein kinase. We discovered that the COP9 signalosome (CSN) is a crucial player in the DSB response and an ATM target. CSN is a protein complex that regulates the activity of cullin ring ubiquitin ligase (CRL) complexes by removing the ubiquitin-like protein, NEDD8, from their cullin scaffold. We find that the CSN is physically recruited to DSB sites in a neddylation-dependent manner, and is required for timely repair of DSBs, affecting the balance between the two major DSB repair pathways-nonhomologous end-joining and homologous recombination repair (HRR). The CSN is essential for the processivity of deep end-resection-the initial step in HRR. Cullin 4a (CUL4A) is recruited to DSB sites in a CSN- and neddylation-dependent manner, suggesting that CSN partners with CRL4 in this pathway. Furthermore, we found that ATM-mediated phosphorylation of CSN subunit 3 on S410 is critical for proper DSB repair, and that loss of this phosphorylation site alone is sufficient to cause a DDR deficiency phenotype in the mouse. This novel branch of the DSB response thus significantly affects genome stability.
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Affiliation(s)
- Michal Meir
- The David and Inez Myers Laboratory for Cancer Research, Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, George S. Wise Faculty of Life sciences, Tel Aviv University, Tel Aviv, 69978 Israel
| | - Yaron Galanty
- The David and Inez Myers Laboratory for Cancer Research, Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, George S. Wise Faculty of Life sciences, Tel Aviv University, Tel Aviv, 69978 Israel
| | - Lior Kashani
- The David and Inez Myers Laboratory for Cancer Research, Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, George S. Wise Faculty of Life sciences, Tel Aviv University, Tel Aviv, 69978 Israel
| | - Michael Blank
- The David and Inez Myers Laboratory for Cancer Research, Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, George S. Wise Faculty of Life sciences, Tel Aviv University, Tel Aviv, 69978 Israel
| | - Rami Khosravi
- The David and Inez Myers Laboratory for Cancer Research, Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, George S. Wise Faculty of Life sciences, Tel Aviv University, Tel Aviv, 69978 Israel
| | - María Jesús Fernández-Ávila
- Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER) and Department of Genetics, University of Sevilla, Sevilla, 41092, Spain
| | - Andrés Cruz-García
- Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER) and Department of Genetics, University of Sevilla, Sevilla, 41092, Spain
| | - Ayelet Star
- The David and Inez Myers Laboratory for Cancer Research, Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, George S. Wise Faculty of Life sciences, Tel Aviv University, Tel Aviv, 69978 Israel
| | - Lea Shochot
- The David and Inez Myers Laboratory for Cancer Research, Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, George S. Wise Faculty of Life sciences, Tel Aviv University, Tel Aviv, 69978 Israel
| | - Yann Thomas
- MRC Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, University of Dundee, Dundee, DD1 5EH, Scotland, UK
| | - Lisa J Garrett
- Genetics and Molecular Biology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Daniel A Chamovitz
- Department of Molecular Biology and Ecology of Plants, George S. Wise Faculty of Life sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - David M Bodine
- Genetics and Molecular Biology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Thimo Kurz
- MRC Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, University of Dundee, Dundee, DD1 5EH, Scotland, UK
| | - Pablo Huertas
- Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER) and Department of Genetics, University of Sevilla, Sevilla, 41092, Spain
| | - Yael Ziv
- The David and Inez Myers Laboratory for Cancer Research, Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, George S. Wise Faculty of Life sciences, Tel Aviv University, Tel Aviv, 69978 Israel
| | - Yosef Shiloh
- The David and Inez Myers Laboratory for Cancer Research, Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, George S. Wise Faculty of Life sciences, Tel Aviv University, Tel Aviv, 69978 Israel
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Jimeno S, Fernández-Ávila MJ, Cruz-García A, Cepeda-García C, Gómez-Cabello D, Huertas P. Neddylation inhibits CtIP-mediated resection and regulates DNA double strand break repair pathway choice. Nucleic Acids Res 2015; 43:987-99. [PMID: 25567988 PMCID: PMC4333419 DOI: 10.1093/nar/gku1384] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
DNA double strand breaks are the most cytotoxic lesions that can occur on the DNA. They can be repaired by different mechanisms and optimal survival requires a tight control between them. Here we uncover protein deneddylation as a major controller of repair pathway choice. Neddylation inhibition changes the normal repair profile toward an increase on homologous recombination. Indeed, RNF111/UBE2M-mediated neddylation acts as an inhibitor of BRCA1 and CtIP-mediated DNA end resection, a key process in repair pathway choice. By controlling the length of ssDNA produced during DNA resection, protein neddylation not only affects the choice between NHEJ and homologous recombination but also controls the balance between different recombination subpathways. Thus, protein neddylation status has a great impact in the way cells respond to DNA breaks.
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Affiliation(s)
- Sonia Jimeno
- Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER), 41092 Sevilla, Spain Departamento de Genética, Universidad de Sevilla, 41080 Sevilla, Spain
| | | | - Andrés Cruz-García
- Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER), 41092 Sevilla, Spain Departamento de Genética, Universidad de Sevilla, 41080 Sevilla, Spain
| | - Cristina Cepeda-García
- Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER), 41092 Sevilla, Spain
| | - Daniel Gómez-Cabello
- Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER), 41092 Sevilla, Spain
| | - Pablo Huertas
- Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER), 41092 Sevilla, Spain Departamento de Genética, Universidad de Sevilla, 41080 Sevilla, Spain
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Cruz-García A, López-Saavedra A, Huertas P. BRCA1 accelerates CtIP-mediated DNA-end resection. Cell Rep 2014; 9:451-9. [PMID: 25310973 DOI: 10.1016/j.celrep.2014.08.076] [Citation(s) in RCA: 182] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 07/10/2014] [Accepted: 08/27/2014] [Indexed: 01/08/2023] Open
Abstract
DNA-end resection is a highly regulated and critical step in the response and repair of DNA double-strand breaks. In higher eukaryotes, CtIP regulates resection by integrating cellular signals via its posttranslational modifications and protein-protein interactions, including cell-cycle-controlled interaction with BRCA1. The role of BRCA1 in DNA-end resection is not clear. Here, we develop an assay to study DNA resection in higher eukaryotes at high resolution. We demonstrate that the BRCA1-CtIP interaction, albeit not essential for resection, modulates the speed at which this process takes place.
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Affiliation(s)
- Andrés Cruz-García
- Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER), 41092 Sevilla, Spain; Departamento de Genética, Universidad de Sevilla, 41080, Sevilla, Spain
| | - Ana López-Saavedra
- Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER), 41092 Sevilla, Spain; Departamento de Genética, Universidad de Sevilla, 41080, Sevilla, Spain
| | - Pablo Huertas
- Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER), 41092 Sevilla, Spain; Departamento de Genética, Universidad de Sevilla, 41080, Sevilla, Spain.
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