郁 俐, 沈敏娜, 姜惠琴, et al. The progress and prospect of homologous recombination deficiency detection in clinical diagnosis and treatment of cancer[J]. China Oncology, 2021, 31(4): 344-349.
郁 俐, 沈敏娜, 姜惠琴, et al. The progress and prospect of homologous recombination deficiency detection in clinical diagnosis and treatment of cancer[J]. China Oncology, 2021, 31(4): 344-349. DOI: 10.19401/j.cnki.1007-3639.2021.04.015.
Homologous recombination (HR) is the main way to repair DNA double-stranded breaks
single-stranded DNA gaps and stagnation or folding replication forks
helping to maintain telomeres and ensure the correct segregation of chromosomes during meiosis. Homologous recombination repair (HRR) pathway is one of the DNA damage repair pathways
which has a high mutation frequency in cancers. Besides BRCA1/2 mutations
homologous recombination deficiency (HRD) can also be caused by other mechanisms
such as germline mutations
somatic mutations
genome stability of HRR-related genes and epigenetic modification of HRR genes. The latest clinical data show that reflecting HRD status through HRR gene mutations detection and genomic scar detection can effectively predict the efficiency of poly (ADP-ribose) polymerase inhibitor (PARPi) in patients with cancer and help patients to accurately use drugs and predict the prognosis. However
there are a variety of methods to identify HRD in cancers
the purpose of this paper was to summarize the detection methods of homologous recombination
to explore the value of HRD detection in clinical application
and to lay a foundation for precise treatment of cancer.