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Published on: August 29, 2015
GSK-3: An "Ace" Among Kinases
1Department of Biology, Oklahoma School of Science and Mathematics, Oklahoma City, Oklahoma, USA.
Abstract:
Glycogen synthase kinase-3 (GSK-3) is a serine/threonine kinase known to participate in the regulation of β-catenin signaling (Wnt signaling). This aids in the establishment of a multicomponent destruction complex that stimulates phosphorylation, leading to the destruction of β-catenin. Evidence about the role of increasingly active β-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. 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. Significant findings of miRNA regulation by GSK-3 exemplify the underpinnings of kinase-mediated transcriptional regulation in cancers. 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.
Insights
Glycogen synthase kinase-3 (GSK-3) regulates Wnt signaling and cellular processes. Its role in cancer highlights the need for GSK-3 inhibitors, as it influences microRNAs and cell fate.
Area of Science:
- Biochemistry
- Molecular Biology
- Cancer Biology
Background:
- Glycogen synthase kinase-3 (GSK-3) is a key regulator of beta-catenin signaling (Wnt signaling).
- Dysregulation of Wnt signaling and beta-catenin is implicated in numerous human cancers.
- GSK-3's precise role remains under investigation, driving research into targeted inhibitors.
Purpose of the Study:
- To review the regulation of GSK-3, focusing on its interplay with Wnt signaling.
- To highlight GSK-3's interactions with microRNAs (miRNAs) involved in pluripotency and epithelial-mesenchymal transition (EMT).
- To establish GSK-3 as a critical kinase in cellular process regulation.
Main Methods:
- Literature review of GSK-3 regulation.
- Analysis of GSK-3's role in Wnt signaling pathways.
- Examination of GSK-3's interaction with miRNAs relevant to cancer.
Main Results:
- GSK-3 influences the Wnt signaling destruction complex, affecting beta-catenin stability.
- GSK-3 regulates miRNAs associated with pluripotency and EMT, processes crucial in cancer development.
- Evidence suggests GSK-3's role in kinase-mediated transcriptional regulation in cancers.
Conclusions:
- GSK-3 is a pivotal kinase in cellular regulation, impacting Wnt signaling and miRNA expression.
- GSK-3 acts as a potential master regulator of proteins and noncoding RNAs, influencing cell fate.
- Targeting GSK-3 may offer therapeutic strategies for various cancers.
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