Expression of DNA Helicase Genes Was Correlated with Homologous Recombination Deficiency in Breast Cancer.

Abstract

Homologous recombination deficiency which is currently measured by the homologous recombination deficiency (HRD) score including score of telomeric allelic imbalance (TAI), large-scale transition (LST), and loss of heterozygosity (LOH) is highly related with sensitivity to platinum-containing drug and PARP inhibitors. DNA helicases are essential components for the homologous recombination repair process in which DNA helicases unwind double-strand DNA utilizing ATP hydrolysis. In our study, the correlation between the expression of DNA helicase genes and HRD score in breast cancer was analyzed. The overexpression in half of the DNA helicase genes was found to be highly correlated with a high HRD score both in BRCA-mutated and BRCA wild-type breast cancer. Moreover, HRD score can be predicted by a linear function contributed by five DNA helicase genes. In conclusion, our study revealed a close relation between the overexpression of certain DNA helicase genes and the deficiency of homologous recombination repair in breast cancer.

• Authors: Mengping Long, Hongjun Liu, Jinbo Wu, Shu Wang, Xin Liao, Yiqiang Liu, Taobo Hu
• Journal: Computational and mathematical methods in medicine (Comput Math Methods Med) Vol. 2022 Pg. 5508301 ( 2022) ISSN: 1748-6718 [Electronic] United States
• PMID: 35855837 (Publication Type: Journal Article)
• Copyright: Copyright © 2022 Mengping Long et al.

Chemical References

• Poly(ADP-ribose) Polymerase Inhibitors
• DNA Helicases

Topics

• Breast Neoplasms (genetics)
• DNA Helicases (genetics)
• Female
• Homologous Recombination
• Humans
• Loss of Heterozygosity
• Poly(ADP-ribose) Polymerase Inhibitors