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Down-regulated reactive oxygen species by heat shock protein 90 in 3-Hydroxykynurenine-induced SKN-SH cell death

김대성 1 이명우 1 노유헌 1 이도연 1 이현정 1 Bach JH 1 한정우 1 이광길 1 여주홍 1 Lee Won Bok 1 Sung Su Kim 1

1중앙대학교

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이 논문은 대한체질인류학회 윤리위원회 회의(2020.2.27.) 결과 일부 그림이나 내용이 중복된 점이 확인되어 게재가 철회된 논문임

ABSTRACT

In this present study, we show that 3HK-induced reactive oxygen species (ROS) accumulation and caspase activation lead to apoptotic cell death. Pretreatment with N-acetylcysteine (NAC), an effective antioxidant, significantly attenuated 3HK-induced apoptosis by way of a reduction of ROS accumulation and caspase activity. SKN-SN cells were protected from 3HK-induced cytotoxicity by heat shock protein (HSP). HSP90 effectively attenuated 3HK-mediated ROS accumulation and apoptosis. In addition, the protective effect of HSP90 was abolished by pretreatment with HSP90 antisense oligonucleotide, but not when pretreated with anti-senses for other HSPs. These results suggest that HSP90 protects SKN-SH cells from 3HK-induced cytotoxicity by reducing ROS levels and caspase activity.

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