Open Access

CRISPR/Cas9‑induced saturated mutagenesis identifies Rad51 haplotype as a marker of PARP inhibitor sensitivity in breast cancer

  • Authors:
    • Hua Yang
    • Yaning Wei
    • Qian Zhang
    • Yang Yang
    • Xuebing Bi
    • Lin Yang
    • Na Xiao
    • Aimin Zang
    • Lili Ren
    • Xiaoli Li
  • View Affiliations

  • Published online on: June 16, 2022     https://doi.org/10.3892/mmr.2022.12774
  • Article Number: 258
  • Copyright: © Yang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Breast cancer treatment with poly(ADP‑ribose)polymerase (PARP) inhibitors is currently limited to cells defective in the homologous recombination repair (HRR) pathway. The chemical inhibition of many HRR deficiency genes may sensitize cancer cells to PARP inhibitors. In the present study, Rad51, a central player in the HRR pathway, was selected to explore additional low variation and highly representative markers for PARP inhibitor activity. A CRISPR/Cas9‑based saturated mutation approach for the Rad51 WALKER domain was used to evaluate the sensitivity of the PARP inhibitor olaparib. Five amino acid mutation sites were identified in olaparib‑resistant cells. Two Rad51 haplotypes were assembled from the mutations, and may represent useful pharmacogenomic markers of PARP inhibitor sensitivity.
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August-2022
Volume 26 Issue 2

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Yang H, Wei Y, Zhang Q, Yang Y, Bi X, Yang L, Xiao N, Zang A, Ren L, Li X, Li X, et al: CRISPR/Cas9‑induced saturated mutagenesis identifies <em>Rad51</em> haplotype as a marker of PARP inhibitor sensitivity in breast cancer. Mol Med Rep 26: 258, 2022
APA
Yang, H., Wei, Y., Zhang, Q., Yang, Y., Bi, X., Yang, L. ... Li, X. (2022). CRISPR/Cas9‑induced saturated mutagenesis identifies <em>Rad51</em> haplotype as a marker of PARP inhibitor sensitivity in breast cancer. Molecular Medicine Reports, 26, 258. https://doi.org/10.3892/mmr.2022.12774
MLA
Yang, H., Wei, Y., Zhang, Q., Yang, Y., Bi, X., Yang, L., Xiao, N., Zang, A., Ren, L., Li, X."CRISPR/Cas9‑induced saturated mutagenesis identifies <em>Rad51</em> haplotype as a marker of PARP inhibitor sensitivity in breast cancer". Molecular Medicine Reports 26.2 (2022): 258.
Chicago
Yang, H., Wei, Y., Zhang, Q., Yang, Y., Bi, X., Yang, L., Xiao, N., Zang, A., Ren, L., Li, X."CRISPR/Cas9‑induced saturated mutagenesis identifies <em>Rad51</em> haplotype as a marker of PARP inhibitor sensitivity in breast cancer". Molecular Medicine Reports 26, no. 2 (2022): 258. https://doi.org/10.3892/mmr.2022.12774