Oligodendrocytes are the myelin-producing cells of the central nervous system (CNS). A variety of brain disorders from “classical” demyelinating diseases, such as multiple sclerosis, stroke, schizophrenia, depression, Down syndrome and autism, are shown myelination defects. Oligodendrocyte myelination is regulated by a complex interplay of intrinsic, epigenetic and extrinsic factors. Gpr17 (G protein-coupled receptor 17) is a G protein-coupled receptor, and has been identified to be a regulator for oligodendrocyte development. Here, we demonstrate that the absence of Gpr17 enhances remyelination in vivo with a toxin-induced model whereby focal demyelinated lesions are generated in spinal cord white matter of adult mice by localized injection of LPC(L-a-lysophosphatidylcholine). The increased expression of the activated form of Erk1/2 (phospho-Erk1/2) in lesion areas suggested the potential role of Erk1/2 activity on the Gpr17-dependent modulation of myelination. The absence of Gpr17 enhances remyelination is correlate with the activated Erk1/2 (phospho-Erk1/2).Being a membrane receptor, Gpr17 represents an ideal druggable target to be exploited for innovative regenerative approaches to acute and chronic CNS diseases.
Scientific Reports – Springer Journals
Published: Mar 14, 2018
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