准备,典型的结构特征和鱼软骨II型原蛋白对骨关节炎的缓解作用
Qianqian Zhao1, Zhaoxia Li1, Zeyu Liu1
1State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province, 266404, PR China.
Food research international (Ottawa, Ont.)
|July 26, 2024
概括
鱼软骨II型原 (SCIIP) 显示出作为抗骨关节炎补充剂的潜力. 在大鼠模型中,SCIIP通过向TLR4/NF-κB通路,有效降低了炎症并减轻了骨关节炎症状.
科学领域:
- 生物化学 生物化学
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 已知原衍生物有助于促进骨健康.
- 来自鱼软骨 (SCIIP) 的II型原的特定结构和抗骨关节炎作用需要进一步研究.
研究的目的:
- 为了从鱼软骨中准备和描述SCIIP.
- 在体外和体内研究SCIIP的抗关节炎作用.
- 阐明SCIIP作用的潜在分子机制.
主要方法:
- SCIIP制剂涉及NaOH预处理和酶性水解.
- 结构特征包括分子量测定,氨基酸分析,FTIR和CD光谱.
- 在体外测试评估了RAW264.7巨细胞中的氧化 (NO) 生产.
- 在体内研究中,使用了老鼠骨关节炎模型.
- 使用了分子对接和途径分析 (TLR4/NF-κB).
主要成果:
- SCIIP的特点是分子量低于5kDa,高甘氨酸含量 (35.0%) 和典型的原蛋白特征.
- 特定的序列 (GP(Hyp) GPD和GPAGP(Hyp) GD) 显示出与TLR4/MD-2具有显著的结合亲和力.
- SCIIP抑制了巨细胞中NO的产生.
- 在大鼠中,SCIIP治疗减轻了骨关节炎症状.
- 抗关节炎作用通过TLR4/NF-κB通路进行介导.
结论:
- SCIIP具有抗炎性质,并显示出对骨关节炎的治疗潜力.
- 从鱼软骨中鉴定出的原可以作为TLR4抗剂.
- SCIIP是作为功能性食品成分或骨关节炎管理补充剂开发的有希望的候选者.
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