GSK-3: An “Ace” Among Kinases

Abstract

Background: Glycogen synthase kinase-3 (GSK-3) is a serine/threonine kinase known to participate in the regulation of b-catenin signaling (Wnt signaling). This aids in the establishment of a multicomponent destruction complex that stimulates phosphorylation, leading to the destruction of b-catenin. Evidence about the role of increasingly active b-catenin signaling is involved in many forms of human cancer. The understanding of GSK-3 remains elusive as recent research aims to focus on developing potent GSK-3 inhibitors to target this kinase. Objective: This short review aims to highlight the regulation of GSK-3 with emphasis on Wnt signaling while highlighting its interaction with miRNAs corresponding to pluripotency and epithelial mesenchymal transition substantiating this kinase as an “Ace” among kinases in regulation of cellular processes. Result: Significant findings of miRNA regulation by GSK-3 exemplify the underpinnings of kinase-mediated transcriptional regulation in cancers. Conclusion: The review provides evidence on the role of GSK-3 as a possible master regulator of proteins and noncoding RNA, thereby implicating the fate of a cell.