In addition to EMT regulation, the well-known property of miR-34a is its tumor suppressor function via inducing cell cycle arrest and apoptosis in various cancer types by targeting several molecules crucial for sustaining tumor growth such as CDK4/6, MET, HDAC1, E2F3 and Bcl-2 [66-72] (Table 1). Here, HDAC1 is linked to neoplasm.