Biological and Pharmaceutical Bulletin
Online ISSN : 1347-5215
Print ISSN : 0918-6158
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Sertindole, a Potent Antagonist at Dopamine D2 Receptors, Induces Autophagy by Increasing Reactive Oxygen Species in SH-SY5Y Neuroblastoma Cells
Ji Hyun ShinSo Jung ParkEun Sung KimYoon Kyung JoJungwoo HongDong-Hyung Cho
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Volume 35 (2012) Issue 7 Pages 1069-1075

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Abstract

Autophagy is associated with cell survival and cell death. Autophagy is implicated in the pathophysiology of various human diseases. In order to identify autophagy regulatory molecules, we screened a chemical drug library in SH-SY5Y cells and selected Sertindole as a potent autophagy inducer. Sertindole was developed as an antipsychotic drug for Schizophrenia. Sertindole treatment highly induced the formation of autophagosomes as well as LC3 conversion. Subsequently, Sertindole-induced autophagy was efficiently suppressed by down regulation of ATG5. Sertindole also increased reactive oxygen species (ROS) production, which contributes to autophagy-associated cell death in neuroblastoma cells. ROS scavengers such as N-acetylcysteine and Trolox suppressed not only ROS generation but also autophagy activation by Sertindole. These results suggest Sertindole induces autophagy and autophagy-associated cell death by ROS production in neuroblastoma cells.

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© 2012 The Pharmaceutical Society of Japan
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