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Preparation, structure identification and the anti-photoaging activity of peptide fraction OP-Ia from Ostrea rivularis

机译:来自Ostrea豚鼠肽份额OP-Ia的制备,结构鉴定和抗焦抗性活性

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The purpose of the present study is to evaluate the preparation and the structure of fraction OP-Ia and its protective effect against UV-induced photoaging through the MAPKs signaling pathway. Fractions OP-Ia and OP-Ib were prepared by enzymatic hydrolysis and purified by ultrafiltration (5 kDa) and gel chromatography (Sephadex G-25). The reducing power and superoxide radical scavenging ability were evaluated, which showed that OP-Ia had stronger antioxidant activity than OP-Ib. Next, ten peptides were identified in OP-Ia by UPLC-MS/MS. The mechanism of the anti-photoaging activity for fraction OP-Ia was investigated through the MAPKs pathway based on the HaCaT cell line. Fraction OP-Ia could inhibit the generation of ROS and the decline of cell viability induced by UV radiation, meanwhile downregulate the expression of IL-1β, IL-8, c-Jun, c-Fos, p65 NF-κB and p38 MAPK genes. Overall, the results showed that the fraction OP-Ia could be a potent component of functional foods with UV protection property.
机译:本研究的目的是评估零件OP-IA的制备和结构及其通过MAPKS信号通路对UV诱导的光学手册的保护作用。通过酶水解制备级分OP-IA和OP-1B,并通过超滤(5kDa)和凝胶色谱法(Sephadex G-25)纯化。评估了降低的功率和超氧化物自由基清除能力,表明OP-IA具有比OP-1B更强的抗氧化活性。接下来,通过UPLC-MS / MS在OP-Ia中鉴定十种肽。通过基于HACAT细胞系的MAPKS途径研究了抗拍摄活性的抗焦活性的机制。馏分OP-Ia可以抑制ROS的产生和UV辐射诱导的细胞活力的衰落,同时下调IL-1β,IL-8,C-JUM,C-FOS,P65 NF-κB和P38 MAPK基因的表达。总体而言,结果表明,零缺片OP-IA可以是具有UV保护性能的功能性食品的有效成分。

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