Journal
DRUG RESISTANCE UPDATES
Volume 71, Issue -, Pages -Publisher
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.drup.2023.101004
Keywords
ABC transporters; ABCB1; ABCG2; ABCC1; Multidrug resistance; Phytochemicals; Transcription factors; Signaling pathway
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ABCB1, ABCG2, and ABCC1 are major players in multidrug resistance (MDR) caused by drug efflux, but their expression can be downregulated by natural medicinal compounds through modulation of transcription factors and associated signaling pathways.
ATP-binding cassette (ABC) transporters such as ABCB1, ABCG2, and ABCC1 are the major players in drug effluxmediated multidrug resistance (MDR), which severely affects the efficacy of chemotherapy. Several synthetic compounds block the drug transport by ABC transporters; however, they exhibit a narrow therapeutic window, and produce side effects in non-target normal tissues. Conversely, the downregulation of the expression of ABC drug transporters seems to be a promising strategy to reverse MDR in cancer cells. Several signaling pathways, such as NF-kappa B, STAT3, Gli, NICD, YAP/TAZ, and Nrf2 upregulate the expression of ABC drug transporters in drug-resistant cancers. Recently, natural medicinal compounds have gained importance to overcome the ABC drug-efflux pump-mediated MDR in cancer. These compounds target transcription factors and the associated signal transduction pathways, thereby downregulating the expression of ABC transporters in drug-resistant cancer cells. Several potent natural compounds have been identified as lead candidates to synergistically enhance chemotherapeutic efficacy, and a few of them are already in clinical trials. Therefore, modulation of signal transduction pathways using natural medicinal compounds for the reversal of ABC drug transportermediated MDR in cancer is a novel approach for improving the efficiency of the existing chemotherapeutics. In this review, we discuss the modulatory role of natural medicinal compounds on cellular signaling pathways that regulate the expression of ABC transporters in drug-resistant cancer cells.
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