Dynamic Balance of Microglia and Astrocytes Involved in the Remyelinating Effect of Ginkgolide B

Autor: Jun-Jun Yin, Yan He, Jun An, Qiang Miao, Ruo-Xuan Sui, Qing Wang, Jie-Zhong Yu, Bao-Guo Xiao, Cun-Gen Ma
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Frontiers in Cellular Neuroscience, Vol 13 (2020)
Druh dokumentu: article
ISSN: 1662-5102
DOI: 10.3389/fncel.2019.00572
Popis: Multiple sclerosis (MS) is an inflammatory demyelinating disorder in the central nervous system (CNS), in which remyelination failure results in persistent neurologic impairment. Ginkgolide B (GB), a major terpene lactone and active component of Ginkgo biloba, has neuroprotective effects in several models of neurological diseases. Here, our results show, by using an in vivo cuprizone (CPZ)-induced demyelinating model, administration of GB improved behavior abnormalities, promoted myelin generation, and significantly regulated the dynamic balance of microglia and astrocytes by inhibiting the expression of TLR4, NF-κB and iNOS as well as IL-1β and TNF-α, and up-regulating the expression of Arg-1 and neurotrophic factors. GB treatment also induced the generation of oligodendrocyte precursor cells (OPCs). In vitro cell experiments yielded the results similar to those of the in vivo model. The dynamic balance by decreasing microglia-mediated neuroinflammation and promoting astrocyte-derived neurotrophic factors should contribute to endogenous remyelination. Despite GB treatment may represent a novel strategy for promoting myelin recovery, the precise mechanism of GB targeting microglia and astrocytes remains to be further explored.
Databáze: Directory of Open Access Journals