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Withaferin A inhibits ferroptosis and protects against intracerebral hemorrhage.
Zhou, Zi-Xian; Cui, Qi; Zhang, Ying-Mei; Yang, Jia-Xin; Xiang, Wen-Jing; Tian, Ning; Jiang, Yan-Lin; Chen, Mei-Ling; Yang, Bin; Li, Qing-Hua; Liao, Ru-Jia.
Afiliación
  • Zhou ZX; Laboratory of Neuroscience; Department of Neurology, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, Guangxi Zhuang Autonomous Region, China.
  • Cui Q; Laboratory of Neuroscience; Department of Neurology, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, Guangxi Zhuang Autonomous Region, China.
  • Zhang YM; Laboratory of Neuroscience; Department of Neurology, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, Guangxi Zhuang Autonomous Region, China.
  • Yang JX; Laboratory of Neuroscience; Department of Neurology, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, Guangxi Zhuang Autonomous Region, China.
  • Xiang WJ; Laboratory of Neuroscience; Department of Neurology, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, Guangxi Zhuang Autonomous Region, China.
  • Tian N; Laboratory of Neuroscience; Guangxi Clinical Research Center for Neurological Diseases, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, Guangxi Zhuang Autonomous Region, China.
  • Jiang YL; Department of Pharmacology, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, Guangxi Zhuang Autonomous Region, China.
  • Chen ML; Department of Neurology, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, Guangxi Zhuang Autonomous Region, China.
  • Yang B; Guangxi Clinical Research Center for Neurological Diseases, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, Guangxi Zhuang Autonomous Region, China.
  • Li QH; Laboratory of Neuroscience; Department of Neurology; Guangxi Clinical Research Center for Neurological Diseases, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, Guangxi Zhuang Autonomous Region, China.
  • Liao RJ; Laboratory of Neuroscience; Department of Neurology; Guangxi Clinical Research Center for Neurological Diseases, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, Guangxi Zhuang Autonomous Region, China.
Neural Regen Res ; 18(6): 1308-1315, 2023 Jun.
Article en En | MEDLINE | ID: mdl-36453416
Recent studies have indicated that suppressing oxidative stress and ferroptosis can considerably improve the prognosis of intracerebral hemorrhage (ICH). Withaferin A (WFA), a natural compound, exhibits a positive effect on a number of neurological diseases. However, the effects of WFA on oxidative stress and ferroptosis-mediated signaling pathways to ICH remain unknown. In this study, we investigated the neuroprotective effects and underlying mechanism for WFA in the regulation of ICH-induced oxidative stress and ferroptosis. We established a mouse model of ICH by injection of autologous tail artery blood into the caudate nucleus and an in vitro cell model of hemin-induced ICH. WFA was injected intracerebroventricularly at 0.1, 1 or 5 µg/kg once daily for 7 days, starting immediately after ICH operation. WFA markedly reduced brain tissue injury and iron deposition and improved neurological function in a dose-dependent manner 7 days after cerebral hemorrhage. Through in vitro experiments, cell viability test showed that WFA protected SH-SY5Y neuronal cells against hemin-induced cell injury. Enzyme-linked immunosorbent assays in vitro and in vivo showed that WFA markedly decreased the level of malondialdehyde, an oxidative stress marker, and increased the activities of anti-oxidative stress markers superoxide dismutase and glutathione peroxidase after ICH. Western blot assay, quantitative polymerase chain reaction and immunofluorescence results demonstrated that WFA activated the nuclear factor E2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) signaling axis, promoted translocation of Nrf2 from the cytoplasm to nucleus, and increased HO-1 expression. Silencing Nrf2 with siRNA completely reversed HO-1 expression, oxidative stress and protective effects of WFA. Furthermore, WFA reduced hemin-induced ferroptosis. However, after treatment with an HO-1 inhibitor, the neuroprotective effects of WFA against hemin-induced ferroptosis were weakened. MTT test results showed that WFA combined with ferrostatin-1 reduced hemin-induced SH-SY5Y neuronal cell injury. Our findings reveal that WFA treatment alleviated ICH injury-induced ferroptosis and oxidative stress through activating the Nrf2/HO-1 pathway, which may highlight a potential role of WFA for the treatment of ICH.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Neural Regen Res Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: India

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Neural Regen Res Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: India