Fig. 6: MRP1 can bind and be stabilized by FSIP1, and is responsible for FSIP1-mediated docetaxel resistance.

a Co-IP and MS analysis identified the binding of FSIP1 and MRP1. b Confocal images showing the membrane-proximal co-localization of FSIP1 and MRP1. c FSIP1 knockout can decrease MRP1 levels. d MTT assay showing that overexpression of MRP1 in FSIP1 knockout cells can reverse the effect of knockout. e HPLC Analysis showing increased intracellular accumulation of docetaxel in FSIP1 knockout cancer cells, which was attenuated by MRP1