Your browser doesn't support javascript.
loading
Accumulation of RIPK1 into mitochondria is requisite for oxidative stress-mediated necroptosis and proliferation in Rat Schwann cells.
Wang, Baoli; Fu, Jiayao; Chai, Ying; Liu, Yuemin; Chen, Yanlin; Yin, Junhao; Pu, Yiping; Chen, Changyu; Wang, Fang; Liu, Zhiyang; Zheng, Lingyan; Chen, Minjie.
Afiliación
  • Wang B; Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
  • Fu J; National Center for Stomatology, Shanghai, China.
  • Chai Y; National Clinical Research Center of Oral Disease, Shanghai, China.
  • Liu Y; Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
  • Chen Y; National Center for Stomatology, Shanghai, China.
  • Yin J; National Clinical Research Center of Oral Disease, Shanghai, China.
  • Pu Y; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
  • Chen C; Laboratory of oral microbiota and systematic diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
  • Wang F; Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
  • Liu Z; National Center for Stomatology, Shanghai, China.
  • Zheng L; National Clinical Research Center of Oral Disease, Shanghai, China.
  • Chen M; Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Int J Med Sci ; 19(13): 1965-1976, 2022.
Article en En | MEDLINE | ID: mdl-36438920
The injury of Schwann cells is an important pathological feature of peripheral neuropathy. However, the explicit molecular mechanism and blocking method remains to be explored. In this study, we identified an pivotal executor of necroptosis-RIPK1, performed an unique function in response to oxidative stress-induced injury in Rat Schwann cells. We found that after oxidative stress-simulation by H2O2, RIPK1 was activated independent of genetic up-regulation, but through the post-translational modification, including its protein levels, phosphorylation of Serine 166 and Serine 321 sites and its general ubiquitination levels. Under a confocal microscopy, we found that RIPK1 was significantly accumulated into the mitochondria. And the phosphorylation, ubiquitination levels were also elevated in mitochondrial RIPK1, as indicated by immunoprecipitation. Through the administration of N-Acetyl-L-cysteine (NAC), a ROS inhibitor, we found that the phosphorylation, ubiquitination and mitochondrial location of RIPK1 was significantly suppressed. While administration of Necrostatin-1 (Nec-1) failed to influence the levels of ROS and mitochondrial membrane potential, revealing that RIPK1 served as the down-stream regulators of ROS. Lastly, pharmacological inhibition of RIPK1 by Nec-1 attenuated the levels of necroptosis, increased proliferation, as indicated by Annexin V/PI evaluation, CCK-8 detection, TEM scanning and EdU staining. Our results indicate a previous un-recognized post-translational change of RIPK1 in response to oxidative stress in Schwann cells.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Necroptosis / Peróxido de Hidrógeno Límite: Animals Idioma: En Revista: Int J Med Sci Asunto de la revista: MEDICINA Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Australia
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Necroptosis / Peróxido de Hidrógeno Límite: Animals Idioma: En Revista: Int J Med Sci Asunto de la revista: MEDICINA Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Australia