The 5-Lipoxygenase Inhibitor Zileuton Confers Neuroprotection against Glutamate Oxidative Damage by Inhibiting Ferroptosis
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- Liu Yang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and College of Pharmaceutical Sciences, Soochow University
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- Wang Wei
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and College of Pharmaceutical Sciences, Soochow University
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- Li Yuyao
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and College of Pharmaceutical Sciences, Soochow University
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- Xiao Yunqi
- Institute of Neuroscience, Soochow University
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- Cheng Jian
- Institute of Neuroscience, Soochow University
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- Jia Jia
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and College of Pharmaceutical Sciences, Soochow University
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説明
5-Lipoxygenase (5-LOX) inhibitors have been shown to be protective in several neurodegenerative disease models; however, the underlying mechanisms remain unclear. We investigated whether 5-LOX inhibitor zileuton conferred direct neuroprotection against glutamate oxidative toxicity by inhibiting ferroptosis, a newly identified iron-dependent programmed cell death. Treatment of HT22 mouse neuronal cell line with glutamate resulted in significant cell death, which was inhibited by zileuton in a dose-dependent manner. Consistently, zileuton decreased glutamate-induced production of reactive oxygen species but did not restore glutamate-induced depletion of glutathione. Moreover, the pan-caspase inhibitor Z-Val-Ala-Asp(OMe)-fluoromethyl ketone (ZVAD-fmk) neither prevented HT22 cell death induced by glutamate nor affected zileuton protection against glutamate oxidative toxicity, suggesting that zileuton did not confer neuroprotection by inhibiting caspase-dependent apoptosis. Interestingly, glutamate-induced HT22 cell death was significantly inhibited by the ferroptosis inhibitor ferrostatin-1. Moreover, zileuton protected HT22 neuronal cells from erastin-induced ferroptosis. However, we did not observe synergic protective effects of zileuton and ferrostatin-1 on glutamate-induced cell death. These results suggested that both the 5-LOX inhibitor zileuton and the ferropotosis inhibitor ferrostatin-1 acted through the same cascade to protect against glutamate oxidative toxicity. In conclusion, our results suggested that zileuton protected neurons from glutamate-induced oxidative stress at least in part by inhibiting ferroptosis.
収録刊行物
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- Biological & Pharmaceutical Bulletin
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Biological & Pharmaceutical Bulletin 38 (8), 1234-1239, 2015
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390001204632279424
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- NII論文ID
- 130005090655
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- NII書誌ID
- AA10885497
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- ISSN
- 13475215
- 09186158
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- NDL書誌ID
- 026617364
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- PubMed
- 26235588
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- PubMed
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