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Krastev DB, Li S, Sun Y, Wicks AJ, Hoslett G, Weekes D, Badder LM, Knight EG, Marlow R, Pardo MC, Yu L, Talele TT, Bartek J, Choudhary JS, Pommier Y, Pettitt SJ, Tutt ANJ, Ramadan K, Lord CJ. The ubiquitin-dependent ATPase p97 removes cytotoxic trapped PARP1 from chromatin. Nat Cell Biol 2022; 24:62-73. [PMID: 35013556 PMCID: PMC8760077 DOI: 10.1038/s41556-021-00807-6] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 11/03/2021] [Indexed: 12/12/2022]
Abstract
Poly (ADP-ribose) polymerase (PARP) inhibitors elicit antitumour activity in homologous recombination-defective cancers by trapping PARP1 in a chromatin-bound state. How cells process trapped PARP1 remains unclear. Using wild-type and a trapping-deficient PARP1 mutant combined with rapid immunoprecipitation mass spectrometry of endogenous proteins and Apex2 proximity labelling, we delineated mass spectrometry-based interactomes of trapped and non-trapped PARP1. These analyses identified an interaction between trapped PARP1 and the ubiquitin-regulated p97 ATPase/segregase. We found that following trapping, PARP1 is SUMOylated by PIAS4 and subsequently ubiquitylated by the SUMO-targeted E3 ubiquitin ligase RNF4, events that promote recruitment of p97 and removal of trapped PARP1 from chromatin. Small-molecule p97-complex inhibitors, including a metabolite of the clinically used drug disulfiram (CuET), prolonged PARP1 trapping and enhanced PARP inhibitor-induced cytotoxicity in homologous recombination-defective tumour cells and patient-derived tumour organoids. Together, these results suggest that p97 ATPase plays a key role in the processing of trapped PARP1 and the response of tumour cells to PARP inhibitors.
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Affiliation(s)
- Dragomir B Krastev
- The CRUK Gene Function Laboratory, London, UK
- Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK
| | - Shudong Li
- MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, UK
| | - Yilun Sun
- Developmental Therapeutics Branch, Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Andrew J Wicks
- The CRUK Gene Function Laboratory, London, UK
- Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK
| | - Gwendoline Hoslett
- MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, UK
| | - Daniel Weekes
- Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK
| | - Luned M Badder
- The Breast Cancer Now Research Unit, King's College London, London, UK
| | - Eleanor G Knight
- Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK
| | - Rebecca Marlow
- Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK
| | | | - Lu Yu
- Functional Proteomics Laboratory, The Institute of Cancer Research, London, UK
| | - Tanaji T Talele
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY, USA
| | - Jiri Bartek
- Danish Cancer Society Research Center, Copenhagen, Denmark
- Division of Genome Biology, Department of Medical Biochemistry and Biophysics, Science for Life Laboratory, Karolinska Institute, Stockholm, Sweden
| | - Jyoti S Choudhary
- Functional Proteomics Laboratory, The Institute of Cancer Research, London, UK
| | - Yves Pommier
- Developmental Therapeutics Branch, Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Stephen J Pettitt
- The CRUK Gene Function Laboratory, London, UK.
- Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK.
| | - Andrew N J Tutt
- Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK.
| | - Kristijan Ramadan
- MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, UK.
| | - Christopher J Lord
- The CRUK Gene Function Laboratory, London, UK.
- Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK.
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