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Replication fork reversal triggers fork degradation in BRCA2-defective cells

Author

Listed:
  • Sofija Mijic

    (University of Zurich)

  • Ralph Zellweger

    (University of Zurich)

  • Nagaraja Chappidi

    (University of Zurich)

  • Matteo Berti

    (University of Zurich)

  • Kurt Jacobs

    (University of Zurich)

  • Karun Mutreja

    (University of Zurich)

  • Sebastian Ursich

    (University of Zurich)

  • Arnab Ray Chaudhuri

    (National Institutes of Health
    Erasmus University Medical Center)

  • Andre Nussenzweig

    (National Institutes of Health)

  • Pavel Janscak

    (University of Zurich)

  • Massimo Lopes

    (University of Zurich)

Abstract

Besides its role in homologous recombination, the tumor suppressor BRCA2 protects stalled replication forks from nucleolytic degradation. Defective fork stability contributes to chemotherapeutic sensitivity of BRCA2-defective tumors by yet-elusive mechanisms. Using DNA fiber spreading and direct visualization of replication intermediates, we report that reversed replication forks are entry points for fork degradation in BRCA2-defective cells. Besides MRE11 and PTIP, we show that RAD52 promotes stalled fork degradation and chromosomal breakage in BRCA2-defective cells. Inactivation of these factors restores reversed fork frequency and chromosome integrity in BRCA2-defective cells. Conversely, impairing fork reversal prevents fork degradation, but increases chromosomal breakage, uncoupling fork protection, and chromosome stability. We propose that BRCA2 is dispensable for RAD51-mediated fork reversal, but assembles stable RAD51 nucleofilaments on regressed arms, to protect them from degradation. Our data uncover the physiopathological relevance of fork reversal and illuminate a complex interplay of homologous recombination factors in fork remodeling and stability.

Suggested Citation

  • Sofija Mijic & Ralph Zellweger & Nagaraja Chappidi & Matteo Berti & Kurt Jacobs & Karun Mutreja & Sebastian Ursich & Arnab Ray Chaudhuri & Andre Nussenzweig & Pavel Janscak & Massimo Lopes, 2017. "Replication fork reversal triggers fork degradation in BRCA2-defective cells," Nature Communications, Nature, vol. 8(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01164-5
    DOI: 10.1038/s41467-017-01164-5
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    Cited by:

    1. Junliang Chen & Mingjie Wu & Yulan Yang & Chunyan Ruan & Yi Luo & Lizhi Song & Ting Wu & Jun Huang & Bing Yang & Ting Liu, 2024. "TFIP11 promotes replication fork reversal to preserve genome stability," Nature Communications, Nature, vol. 15(1), pages 1-17, December.
    2. Arindam Datta & Kajal Biswas & Joshua A. Sommers & Haley Thompson & Sanket Awate & Claudia M. Nicolae & Tanay Thakar & George-Lucian Moldovan & Robert H. Shoemaker & Shyam K. Sharan & Robert M. Brosh, 2021. "WRN helicase safeguards deprotected replication forks in BRCA2-mutated cancer cells," Nature Communications, Nature, vol. 12(1), pages 1-22, December.
    3. George E. Ronson & Katarzyna Starowicz & Elizabeth J. Anthony & Ann Liza Piberger & Lucy C. Clarke & Alexander J. Garvin & Andrew D. Beggs & Celina M. Whalley & Matthew J. Edmonds & James F. J. Beesle, 2023. "Mechanisms of synthetic lethality between BRCA1/2 and 53BP1 deficiencies and DNA polymerase theta targeting," Nature Communications, Nature, vol. 14(1), pages 1-16, December.
    4. Frederick Richards & Marta J. Llorca-Cardenosa & Jamie Langton & Sara C. Buch-Larsen & Noor F. Shamkhi & Abhishek Bharadwaj Sharma & Michael L. Nielsen & Nicholas D. Lakin, 2023. "Regulation of Rad52-dependent replication fork recovery through serine ADP-ribosylation of PolD3," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    5. Martin Andrs & Henriette Stoy & Barbora Boleslavska & Nagaraja Chappidi & Radhakrishnan Kanagaraj & Zuzana Nascakova & Shruti Menon & Satyajeet Rao & Anna Oravetzova & Jana Dobrovolna & Kalpana Surend, 2023. "Excessive reactive oxygen species induce transcription-dependent replication stress," Nature Communications, Nature, vol. 14(1), pages 1-15, December.
    6. Zu Ye & Shengfeng Xu & Yin Shi & Xueqian Cheng & Yuan Zhang & Sunetra Roy & Sarita Namjoshi & Michael A. Longo & Todd M. Link & Katharina Schlacher & Guang Peng & Dihua Yu & Bin Wang & John A. Tainer , 2024. "GRB2 stabilizes RAD51 at reversed replication forks suppressing genomic instability and innate immunity against cancer," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    7. Tanay Thakar & Ashna Dhoonmoon & Joshua Straka & Emily M. Schleicher & Claudia M. Nicolae & George-Lucian Moldovan, 2022. "Lagging strand gap suppression connects BRCA-mediated fork protection to nucleosome assembly through PCNA-dependent CAF-1 recycling," Nature Communications, Nature, vol. 13(1), pages 1-19, December.
    8. Ashna Dhoonmoon & Claudia M. Nicolae & George-Lucian Moldovan, 2022. "The KU-PARP14 axis differentially regulates DNA resection at stalled replication forks by MRE11 and EXO1," Nature Communications, Nature, vol. 13(1), pages 1-18, December.
    9. Youngho Kwon & Heike Rösner & Weixing Zhao & Platon Selemenakis & Zhuoling He & Ajinkya S. Kawale & Jeffrey N. Katz & Cody M. Rogers & Francisco E. Neal & Aida Badamchi Shabestari & Valdemaras Petrosi, 2023. "DNA binding and RAD51 engagement by the BRCA2 C-terminus orchestrate DNA repair and replication fork preservation," Nature Communications, Nature, vol. 14(1), pages 1-18, December.
    10. Wezley C. Griffin & David R. McKinzey & Kathleen N. Klinzing & Rithvik Baratam & Achini Eliyapura & Michael A. Trakselis, 2022. "A multi-functional role for the MCM8/9 helicase complex in maintaining fork integrity during replication stress," Nature Communications, Nature, vol. 13(1), pages 1-13, December.
    11. Inés Paniagua & Zainab Tayeh & Mattia Falcone & Santiago Hernández Pérez & Aurora Cerutti & Jacqueline J. L. Jacobs, 2022. "MAD2L2 promotes replication fork protection and recovery in a shieldin-independent and REV3L-dependent manner," Nature Communications, Nature, vol. 13(1), pages 1-17, December.
    12. Rishi Kumar Jaiswal & Kai-Hang Lei & Megan Chastain & Yuan Wang & Olga Shiva & Shan Li & Zhongsheng You & Peter Chi & Weihang Chai, 2023. "CaMKK2 and CHK1 phosphorylate human STN1 in response to replication stress to protect stalled forks from aberrant resection," Nature Communications, Nature, vol. 14(1), pages 1-18, December.
    13. Ramona N. Moro & Uddipta Biswas & Suhas S. Kharat & Filip D. Duzanic & Prosun Das & Maria Stavrou & Maria C. Raso & Raimundo Freire & Arnab Ray Chaudhuri & Shyam K. Sharan & Lorenza Penengo, 2023. "Interferon restores replication fork stability and cell viability in BRCA-defective cells via ISG15," Nature Communications, Nature, vol. 14(1), pages 1-15, December.
    14. Maria Dilia Palumbieri & Chiara Merigliano & Daniel González-Acosta & Danina Kuster & Jana Krietsch & Henriette Stoy & Thomas Känel & Svenja Ulferts & Bettina Welter & Joël Frey & Cyril Doerdelmann & , 2023. "Nuclear actin polymerization rapidly mediates replication fork remodeling upon stress by limiting PrimPol activity," Nature Communications, Nature, vol. 14(1), pages 1-15, December.
    15. Anastasia Hale & Ashna Dhoonmoon & Joshua Straka & Claudia M. Nicolae & George-Lucian Moldovan, 2023. "Multi-step processing of replication stress-derived nascent strand DNA gaps by MRE11 and EXO1 nucleases," Nature Communications, Nature, vol. 14(1), pages 1-16, December.
    16. Zhihua Kang & Pan Fu & Allen L. Alcivar & Haiqing Fu & Christophe Redon & Tzeh Keong Foo & Yamei Zuo & Caiyong Ye & Ryan Baxley & Advaitha Madireddy & Remi Buisson & Anja-Katrin Bielinsky & Lee Zou & , 2021. "BRCA2 associates with MCM10 to suppress PRIMPOL-mediated repriming and single-stranded gap formation after DNA damage," Nature Communications, Nature, vol. 12(1), pages 1-12, December.
    17. Cuige Zhu & Mari Iwase & Ziqian Li & Faliang Wang & Annabel Quinet & Alessandro Vindigni & Jieya Shao, 2022. "Profilin-1 regulates DNA replication forks in a context-dependent fashion by interacting with SNF2H and BOD1L," Nature Communications, Nature, vol. 13(1), pages 1-19, December.
    18. Domagoj Vugic & Isaac Dumoulin & Charlotte Martin & Anna Minello & Lucia Alvaro-Aranda & Jesus Gomez-Escudero & Rady Chaaban & Rana Lebdy & Catharina Nicolai & Virginie Boucherit & Cyril Ribeyre & Ang, 2023. "Replication gap suppression depends on the double-strand DNA binding activity of BRCA2," Nature Communications, Nature, vol. 14(1), pages 1-19, December.

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