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A Simple Method to Identify Kinases That Regulate Embryonic Stem Cell Pluripotency by High-throughput Inhibitor Screening
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Published on: May 12, 2017

Characterization and development of novel small-molecules inhibiting GSK3 and activating Wnt signaling

Hanbing Zhong1, Haixia Zou, Mikhail V Semenov

  • 1Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen University Town, Shenzhen 518055, China. zhong@szpku.edu.cn

Molecular Biosystems
|October 14, 2009
PubMed

Insights

A novel compound, 3F8, selectively inhibits Glycogen synthase kinase 3 (GSK3), a key Wnt pathway regulator implicated in diseases. This discovery offers potential new therapeutic candidates for GSK3-related conditions.

Area of Science:

  • Biochemistry
  • Developmental Biology
  • Pharmacology

Background:

  • Glycogen synthase kinase 3 (GSK3) is crucial for the Wnt signaling pathway, regulating cell functions.
  • Aberrant GSK3 activity is linked to diseases like type II diabetes, Alzheimer's, and cancer, making it a drug target.

Purpose of the Study:

  • To identify novel inhibitors of GSK3 using a zebrafish developmental assay.
  • To characterize the inhibitory potential and therapeutic applicability of newly identified GSK3 inhibitors.

Main Methods:

  • Screening a chemical library of 4000 compounds using a zebrafish headless embryo phenotype assay.
  • Utilizing cell reporter assays, chemical informatics, and in vitro kinase experiments for compound validation.
  • Synthesizing and validating a new generation of GSK3 inhibitors based on the lead compound's structure.

Main Results:

  • Identified a novel, selective GSK3 inhibitor, compound 3F8, which disrupts eye and forebrain development in zebrafish.
  • 3F8 demonstrated greater potency than the established GSK3 inhibitor SB216763.
  • Successfully synthesized and validated novel derivatives of 3F8 with GSK3 inhibitory activity.

Conclusions:

  • Compound 3F8 is a potent and selective GSK3 inhibitor with a distinct mechanism of action.
  • 3F8 and its derivatives represent promising reagents and potential therapeutic agents for GSK3-related diseases.

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