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Ameliorative effects of phosphorylated peptide from Antarctic krill (Euphausia superba) against H2O2-induced damage in MC3T3-E1 cells

文献类型: 外文期刊

作者: Wang, Shanshan 1 ; Zhou, Deqing 1 ; Lin, Haiyan 1 ;

作者机构: 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao, Peoples R China

2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Drugs & Bioprod, Qingdao, Peoples R China

关键词: phosphorylation; Antarctic krill peptides; antioxidant activity; oxidative damage; MC3T3-E1 cells

期刊名称:FOOD SCIENCE AND TECHNOLOGY ( 影响因子:2.602; 五年影响因子:2.968 )

ISSN: 0101-2061

年卷期: 2022 年 42 卷

页码:

收录情况: SCI

摘要: Phosphorylated peptide from Antarctic krill (P-AKP) was prepared by the dry-heating method with sodium pyrophosphate in order to improve its antioxidant activity and osteogenic activity. P-AKP exhibited more competitive DPPH center dot and OH center dot scavenging activities compared to the native Antarctic krill peptide (AKP). In hydrogen peroxide (H2O2)-induced oxidative damage of MC3T3-E1 cells, both AKP and P-AKP pretreatment could dose-dependently improve superoxide dismutase (SOD) and catalase (CAT) activities through attenuating the accumulation of reactive oxygen species (ROS) and malondialdehyde (MDA) production. Moreover, AKP and P-AKP prevented oxidative stress-induced down regulation of alkaline phosphatase (ALP) activity and matrix mineralization. Particularly, the promoting effects of P-AKP on the enzymatic antioxidant defense system, differentiation and mineralization was higher than that of AKP. These results suggested that phosphorylation might be a promising approach to improve the antioxidant and osteogenic activity of AKP, and P-AKP could be a beneficial agent for attenuating oxidative stress-related bone loss.

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