Open Access

Mechanism of multidrug resistance to chemotherapy mediated by P‑glycoprotein (Review)

  • Authors:
    • Yichen Tian
    • Yongrong Lei
    • Yani Wang
    • Jiejuan Lai
    • Jianhua Wang
    • Feng Xia
  • View Affiliations

  • Published online on: August 28, 2023     https://doi.org/10.3892/ijo.2023.5567
  • Article Number: 119
  • Copyright: © Tian et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 4.0].

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Abstract

Multidrug resistance (MDR) seriously limits the clinical application of chemotherapy. A mechanism underlying MDR is the overexpression of efflux transporters associated with chemotherapeutic drugs. P‑glycoprotein (P‑gp) is an ATP‑binding cassette (ABC) transporter, which promotes MDR by pumping out chemotherapeutic drugs and reducing their intracellular concentration. To date, overexpression of P‑gp has been detected in various types of chemoresistant cancer and inhibiting P‑gp‑related MDR has been suggested. The present review summarizes the mechanisms underlying MDR mediated by P‑gp in different tumors and evaluated the related signaling pathways, with the aim of improving understanding of the current status of P‑gp‑mediated chemotherapeutic resistance. This review focuses on the main mechanisms of inhibiting P‑gp‑mediated MDR, with the aim of providing a reference for the study of reversing P‑gp‑mediated MDR. The first mechanism involves decreasing the efflux activity of P‑gp by altering its conformation or hindering P‑gp‑chemotherapeutic drug binding. The second inhibitory mechanism involves inhibiting P‑gp expression to reduce efflux. The third inhibitory mechanism involves knocking out the ABCB1 gene. Potential strategies that can inhibit P‑gp include certain natural products, synthetic compounds and biological techniques. It is important to screen lead compounds or candidate techniques for P‑gp inhibition, and to identify inhibitors by targeting the relevant signaling pathways to overcome P‑gp‑mediated MDR.
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November-2023
Volume 63 Issue 5

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Copy and paste a formatted citation
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Spandidos Publications style
Tian Y, Lei Y, Wang Y, Lai J, Wang J and Xia F: Mechanism of multidrug resistance to chemotherapy mediated by P‑glycoprotein (Review). Int J Oncol 63: 119, 2023
APA
Tian, Y., Lei, Y., Wang, Y., Lai, J., Wang, J., & Xia, F. (2023). Mechanism of multidrug resistance to chemotherapy mediated by P‑glycoprotein (Review). International Journal of Oncology, 63, 119. https://doi.org/10.3892/ijo.2023.5567
MLA
Tian, Y., Lei, Y., Wang, Y., Lai, J., Wang, J., Xia, F."Mechanism of multidrug resistance to chemotherapy mediated by P‑glycoprotein (Review)". International Journal of Oncology 63.5 (2023): 119.
Chicago
Tian, Y., Lei, Y., Wang, Y., Lai, J., Wang, J., Xia, F."Mechanism of multidrug resistance to chemotherapy mediated by P‑glycoprotein (Review)". International Journal of Oncology 63, no. 5 (2023): 119. https://doi.org/10.3892/ijo.2023.5567