Abstract
This report evaluates the protective effect of caffeoylquinic acid (CA) injury to oligodendrocyte precursor cells (OPCs) by promoting the formation of oligodendrocytes. Neonatal rat brain was used to isolate primary OPCs and non-lethal CoCl2 was used to induce hypoxic stress to inhibit the differentiation of OPCs. Differentiation of OPCs was estimated by survival assay and the expressions of myelin-basic-protein (MBP). Moreover, the effect of CA on the Akt signanling pathway was also estimated in the presence and absence of LY294002 (PI3K/Akt inhibitor) and adrenomedullin (AM) receptor antagonist (AM22-52) by using western blot assay. It was observed that CA enhances the differentiation OPCs in CoCl2 induced hypoxic stress condition. However treatment with CA in presence of LY294002 and AM22-52 was not able to enhance the differentiation of OPCs. Moreover treatment with CA significantly enhances the phosphorylation of Akt and presence of LY294002 and AM22-52 inhibits it. This report concludes that CA effectively attenuates the injury of white matter (OPCs) by enhancing the differentiation of OPCs. It enhances the formation of oligodendrocytes by activating AM receptor and thereby accelerates the regeneration of neuron in pathological condition.
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