Neuroprotective effects of a novel peptide from Lignosus rhinocerotis against 6-hydroxydopamine-induced apoptosis in PC12 cells by inhibiting NF-kappa B activation
文献类型： 外文期刊
作者： Xiong, Chuan 1 ; Zhu, Yu 1 ; Luo, Qiang 2 ; Phan, Chia Wei 3 ; Huo, Yujie 5 ; Li, Ping 1 ; Li, Qiang 6 ; Jin, Xin 1 ; Huang, Wenli 1 ;
作者机构： 1.Sichuan Acad Agr Sci, Biotechnol & Nucl Technol Res Inst, Chengdu, Peoples R China
2.Chongqing Med Univ, Affiliated Hosp 2, Chongqing, Peoples R China
3.Univ Malaya, Mushroom Res Ctr, Kuala Lumpur, Malaysia
4.Univ Malaya, Fac Pharm, Dept Pharmaceut Life Sci, Kuala Lumpur, Malaysia
5.Yunnan Agr Univ, Yunnan Plateau Characterist Agr Ind Res Inst, Kunming, Yunnan, Peoples R China
6.Chengdu Univ, Coll Food & Biol Engn, Chengdu, Peoples R China
关键词： Lignosus rhinocerotis; neuroprotective effect; oxidative stress; peptide
期刊名称：FOOD SCIENCE & NUTRITION （ 影响因子：3.553； 五年影响因子：3.634 ）
ISSN： 2048-7177
年卷期：
页码：
收录情况： SCI
摘要： According to previous studies, oxidative stress is a leading cause of dopaminergic neuron death and may contribute to the pathogenesis of Parkinson's disease (PD). In the current study, we used chromatography of gel filtration to identify a novel peptide (Lignosus rhinocerotis peptide [LRP]) from the sclerotium of Lignosus rhinocerotis (Cooke) Ryvarden. Its neuroprotective effect was evaluated using an in vitro PD model constructed by 6-hydroxydopamine (6-OHDA)-stimulated to apoptosis in PC12 cells. The molecular weight of LRP is determined as 1532 Da and the secondary structure is irregular. The simple amino acid sequence of LRP is Thr-Leu-Ala-Pro-Thr-Phe-Leu-Ser-Ser-Leu-Gly-Pro-Cys-Leu-Leu. Notably, LRP has the ability to significantly boost the viability of PC12 cells after exposure to 6-OHDA, as well as enhance the cellular activity of antioxidative enzymes like superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px). LRP also lowers the level of malondialdehyde (MDA), decreases the activation performance of Caspase-3, and reduces 6-OHDA-induced apoptosis via inhibition of nuclear factor-kappa B (NF-kappa B) activation. These data indicate that LRP may have the potential to act as a neuroprotective agent.
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