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Abstract Title:

Pinocembrin Promotes OPC Differentiation and Remyelination via the mTOR Signaling Pathway.

Abstract Source:

Neurosci Bull. 2021 Sep ;37(9):1314-1324. Epub 2021 Jun 6. PMID: 34091810

Abstract Author(s):

Qi Shao, Ming Zhao, Wenwen Pei, Yingyan Pu, Mingdong Liu, Weili Liu, Zhongwang Yu, Kefu Chen, Hong Liu, Benqiang Deng, Li Cao

Article Affiliation:

Qi Shao

Abstract:

The exacerbation of progressive multiple sclerosis (MS) is closely associated with obstruction of the differentiation of oligodendrocyte progenitor cells (OPCs). To discover novel therapeutic compounds for enhancing remyelination by endogenous OPCs, we screened for myelin basic protein expression using cultured rat OPCs and a library of small-molecule compounds. One of the most effective drugs was pinocembrin, which remarkably promoted OPC differentiation and maturation without affecting cell proliferation and survival. Based on these in vitro effects, we further assessed the therapeutic effects of pinocembrin in animal models of demyelinating diseases. We demonstrated that pinocembrin significantly ameliorated the progression of experimental autoimmune encephalomyelitis (EAE) and enhanced the repair of demyelination in lysolectin-induced lesions. Further studies indicated that pinocembrin increased the phosphorylation level of mammalian target of rapamycin (mTOR). Taken together, our results demonstrated that pinocembrin promotes OPC differentiation and remyelination through the phosphorylated mTOR pathway, and suggest a novel therapeutic prospect for this natural flavonoid product in treating demyelinating diseases.

Study Type : In Vitro Study

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Sayer Ji
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