Inotodiol protects PC12 cells against injury induced by oxygen and glucose deprivation/restoration through inhibiting oxidative stress and apoptosis

Ischemic stroke is a severe cause of disability and death all over the world. To search for effective therapy for ischemic stroke, PC12 cells damaged by oxygenation and glucose deprivation/restoration were employed to assess the protective effects of inotodiol. As a result, inotodiol can improve the cell viability and attenuate the leakage of lactate dehydrogenase. Meanwhile, inotodiol can prevent oxidative stress by reducing reactive oxygen species generation, decreasing the content of malonic dialdehyde, and increasing the activity of superoxide dismutase. In addition, the dysfunction of mitochondria induced by oxygenation and glucose deprivation/restoration was ameliorated through decreasing the level of intracellular calcium and increasing the mitochondrial membrane potential. At the same time, inotodiol can inhibit PC12 cells apoptosis through downregulation of Caspase-3 and Bax as well as upregulation of Bcl-2. These results reveal inotodiol can protect PC12 cells against the injury induced by oxygenation and glucose deprivation/restoration. This investigation gives promising evidences for the therapy of ischemic stroke. (C) 2017 Faculty of Health and Social Sciences, University of South Bohemia in Ceske Budejovice. Published by Elsevier Sp. z o.o. All rights reserved.