由素产生的卵子化物通过MAPK/NF-κB通路刺激RAW 264.7巨细胞的免疫活性
Seung-Woo Yu1, Hyeong-Jin Kim1, Jin-Hong Jang1
1Dept. Food Science and Biotechnology of Animal Resources, Konkuk University, Neungdongro 120, Seoul 05029, Republic of Korea.
Enzyme and microbial technology
|July 12, 2025
概括
素解卵子 (OVM) 具有显著的免疫增强作用. 这项研究发现氨酸化物 (OMPH) 增加了巨细胞中氧化和细胞因子的产生,这表明它可以用作功能成分.
科学领域:
- 食品科学 食品科学 食品科学
- 免疫学 免疫学 免疫学
- 生物化学 生物化学
背景情况:
- 卵菌 (OVM) 是一种具有潜在健康益处的糖蛋白.
- OVM的水解可以产生具有增强性能的生物活性.
- 了解OVM水解剂的免疫调节作用对于开发功能性食品和药品至关重要.
研究的目的:
- 为了研究由不同的蛋白解酶产生的OVM水解剂的免疫增强作用.
- 评估在RAW 264.7巨细胞中素解液 (OMPH) 的特定免疫调节活性.
- 为了在OMPH中识别对其免疫刺激性质负责的生物活性.
主要方法:
- 使用梅林,Neutrase®,papain和pepsin进行OVM的水解.
- 用SDS-PAGE分析了化物对的分子量.
- 在RAW 264.7巨细胞中评估了免疫刺激性质,包括细胞活力,氧化 (NO) 生产 (Griess测定),iNOS,TNF-α和IL-6mRNA表达.
- 通过Western blotting研究了MAPK和NF-κB信号通路.
- 使用LC-MS/MS进行类鉴定.
主要成果:
- 氨酸水解剂 (OMPH) 产生了10-20 kDa范围内的.
- 在度≤500μg/mL时,OMPH表现出高细胞活力 (>80%).
- OMPH显著增加了NO的产生,上调了iNOS,TNF-α和IL-6mRNA的表达.
- OMPH激活了MAPK和NF-κB通路,通过增加p38,JNK,ERK,p65和IκB-α的酸化来证明这一点.
- 在OMPH治疗后观察到巨细胞的形态变化 (扩大,树突形状).
- LC-MS/MS在OMPH中发现了9种具有免疫刺激性质的,包括EGKDVLVCNK.
结论:
- 素水解有效地产生具有强大的免疫刺激活性的OVM.
- 通过增强NO和细胞因子的产生和激活关键信号通路,OMPH表现出显著的免疫调节作用.
- OMPH含有生物活性,如EGKDVLVCNK,有助于其增强免疫能力.
- 在食品和制药行业中,OMPH是一种有前途的天然生物功能成分,可提高人类免疫力.
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