CXCL2 and clear cell renal carcinoma: Considering that CXCL2 promoted the progression of renal clear cell carcinoma via inducing activation of the EMT process, we added the EMT pathway inhibitor (EMT inhibitor-1, 10 uM/mL, product ID: HY-101275) to the medium containing 100 ng/mL of human recombination CXCL2 protein (EMT group).