Homologous Recombination Repair Deficiency: An Overview for Pathologists
- Author(s)
- Doig, KD; Fellowes, AP; Fox, SB;
- Details
- Publication Year 2023-03,Volume 36,Issue #3,Page 100049
- Journal Title
- Modern Pathology
- Publication Type
- Review
- Abstract
- The repair of DNA double-stranded breaks relies on the homologous recombination repair pathway and is critical to cell function. However, this pathway can be lost in some cancers such as breast, ovarian, endometrial, pancreatic, and prostate cancers. Cancer cells with homologous recombination deficiency (HRD) are sensitive to targeted inhibition of poly-ADP ribose polymerase (PARP), a key component of alternative backup DNA repair pathways. Identifying patients with cancer with HRD biomarkers allows the identification of patients likely to benefit from PARP inhibitor therapies. In this study, we describe the causes of HRD, the underlying molecular changes resulting from HRD that form the basis of different molecular HRD assays, and discuss the issues around their clinical use. This overview is directed toward practicing pathologists wishing to be informed of this new predictive biomarker, as PARP inhibitors are increasingly used in standard care settings.
- Publisher
- Elsevier
- Keywords
- Female; Humans; *Recombinational DNA Repair; *Ovarian Neoplasms/genetics; Homologous Recombination; Pathologists; DNA Repair; Hrd; PARPi; clinical sequencing; homologous recombination deficiency; homologous recombination repair; molecular diagnostics
- Department(s)
- Pathology
- PubMed ID
- 36788098
- Publisher's Version
- https://doi.org/10.1016/j.modpat.2022.100049
- Terms of Use/Rights Notice
- Refer to copyright notice on published article.
Creation Date: 2023-04-06 06:53:44
Last Modified: 2024-07-09 05:22:55