VPS4A and neoplasm: In brief, SMCC-7721 cells transfected with Vps4A tend to package oncogenic miRNAs (miR-27b-3p and miR-92a-3p) into exosomes and accumulate tumor suppressor miRNAs (miR-193a-3p, miR-320a, and miR-132-3p) inside the cells.