期刊
FRONTIERS IN MOLECULAR NEUROSCIENCE
卷 15, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fnmol.2022.1002419
关键词
hMSC; transdifferentiation; GSK-3 beta; beta-catenin; imidazole; beta-III tubulin; neurodegeneration
资金
- DST-INSPIRE
- MHRD
- IIT Jodhpur
- SERB, India [CRG/2019/000670]
- CSIR
- PMRF
This study discovered a new single-molecule transdifferentiation initiator, SG-145C, which promotes the transdifferentiation of hMSCs into neurons by inhibiting the proteasomal degradation of phosphorylated beta-catenin via the Wnt pathway.
The transdifferentiation of human mesenchymal stem cells (hMSC) to functional neurons is crucial for the development of future neuro-regenerative therapeutics. Currently, transdifferentiation of hMSCs to neurons requires a chemical cocktail along with neural growth factors. The role of the individual molecules present in a chemical cocktail is poorly understood and may cause unwanted toxicity or adverse effects. Toward, this goal, we have showcased the discovery of an imidazole-based single-molecule transdifferentiation initiator SG-145C. This discovery was achieved via screening of a small molecule library through extensive in silico studies to shortlist the best-fitting molecules. This discovery evolved through a careful selection to target Glycogen synthase kinase-3 beta (GSK-3 beta), which is one of the important proteins responsible for neurogenesis. Rigorous computational experiments, as well as extensive biological assays, confirmed that SG-145C has significant potential to transdifferentiate hMSCs to neurons. Interestingly, our results suggest that SG-145C can inhibit the proteasomal degradation of phosphorylated beta-catenin, in turn promoting transdifferentiation of hMSCs into neurons via the Wnt pathway.
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