Genome-wide CRISPR/Cas9 screening for drug resistance in tumors

Front Pharmacol. 2023 Nov 21:14:1284610. doi: 10.3389/fphar.2023.1284610. eCollection 2023.

Abstract

Genome-wide clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR associated nuclease 9 (Cas9) screening is a simple screening method for locating loci under specific conditions, and it has been utilized in tumor drug resistance research for finding potential drug resistance-associated genes. This screening strategy has significant implications for further treatment of malignancies with acquired drug resistance. In recent years, studies involving genome-wide CRISPR/Cas9 screening have gradually increased. Here we review the recent application of genome-wide CRISPR/Cas9 screening for drug resistance, involving mitogen-activated protein kinase (MAPK) pathway inhibitors, poly (ADP-ribose) polymerase inhibitors (PARPi), alkylating agents, mitotic inhibitors, antimetabolites, immune checkpoint inhibitors (ICIs), and cyclin-dependent kinase inhibitors (CDKI). We summarize drug resistance pathways such as the KEAP1/Nrf2 pathway MAPK pathway, and NF-κB pathway. Also, we analyze the limitations and conditions for the application of genome-wide CRISPR/Cas9 screening techniques.

Keywords: MAPK pathway inhibitors; PARP inhibitors; drug resistance; genome-wide CRISPR/Cas9 screening; tumors.

Publication types

  • Review

Grants and funding

The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This study was supported by the National Natural Science Foundation of (China 82102961, 82072635, 82173149, and 82072637), Special Events Supported by Heyuan People’s Hospital (YNKT202202), the Science and Technology Program of Heyuan (23051017147335), Funding of Guangdong Provincial People’s Hospital (KY012021164), Basic and applied basic research funding Guangdong Province (2021A1515012441), and the Science and Technology Program of Huizhou Daya Bay (2021002).