Monday, December 1, 2025

Vandetanib (Zactima, ZD6474) Antagonizes ABCC1- and ABCG2-Mediated Multidrug Resistance by Inhibition of Their Transport Function

Authors: Li-sheng Zheng, Fang Wang, Yu-hong Li, Xu Zhang, Li-ming Chen, Yong-ju Liang, Chun-ling Dai, Yan-yan Yan, Li-yang Tao, Yan-jun Mi, An-kui Yang, Kenneth Kin Wah To, Li-wu Fu

DOI: 10.1371/journal.pone.0005172

Abstract Summary

Vandetanib, an oral cancer drug, can overcome multidrug resistance by blocking ABCC1 and ABCG2 transporters without being affected by them. At non-toxic doses, it significantly enhances chemotherapy effectiveness in resistant cancer cells by increasing intracellular drug accumulation, independent of AKT/ERK signaling pathways.

Why Brain? 🧠

Vandetanib reverses cancer drug resistance by blocking ABCC1 and ABCG2 transporters that pump chemotherapy out of cells, potentially improving treatment outcomes when combined with standard drugs.


The image is AI-generated for illustrative purposes only. Courtesy of Midjourney.

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