期刊
DRUG RESISTANCE UPDATES
卷 66, 期 -, 页码 -出版社
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.drup.2022.100905
关键词
ABC transporter; Multidrug resistance; Tumor immune microenvironment; P-glycoprotein; Targeted therapy
Multidrug resistance (MDR) is when cancer cells become resistant to a wide range of unrelated drugs. This hinders cancer treatment and is a major cause of chemotherapy failure. ABC transporters are frequently overexpressed in MDR cancer cells, promoting drug efflux and reducing drug accumulation. Recent evidence suggests that ABC transporters also regulate the tumor immune microenvironment (TIME) by transporting cytokines, influencing anti-tumor immunity and drug sensitivity. Inhibition of ABC transporter expression or function can enhance the efficacy of immune checkpoint inhibitors by promoting an anticancer immune microenvironment. This review provides an update on current research progress in this field.
Multidrug resistance (MDR) is the phenomenon in which cancer cells simultaneously develop resistance to a broad spectrum of structurally and mechanistically unrelated drugs. MDR severely hinders the effective treat-ment of cancer and is the major cause of chemotherapy failure. ATP-binding cassette (ABC) transporters are extensively expressed in various body tissues, and actively transport endogenous and exogenous substrates through biological membranes. Overexpression of ABC transporters is frequently observed in MDR cancer cells, which promotes efflux of chemotherapeutic drugs and reduces their intracellular accumulation. Increasing ev-idence suggests that ABC transporters regulate tumor immune microenvironment (TIME) by transporting various cytokines, thus controlling anti-tumor immunity and sensitivity to anticancer drugs. On the other hand, the expression of various ABC transporters is regulated by cytokines and other immune signaling molecules. Targeted inhibition of ABC transporter expression or function can enhance the efficacy of immune checkpoint inhibitors by promoting anticancer immune microenvironment. This review provides an update on the recent research progress in this field.
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