CIP2A and renal cell carcinoma: <b>Conclusions:</b> These proof-of-concept data link 6-day resveratrol exposure to CIP2A reduction and decreased mesenchymal marker expression in a human 3D RCC spheroid system; however, PP2A activity and downstream signaling, AMPK/SIRT1 activation, and EMT-relevant functional assays were not assessed, and validation across additional RCC models will be required.