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Updated: Jan 12, 2026

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Nitropeptide Profiling and Identification Illustrated by Angiotensin II
Published on: June 16, 2019
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的硫化修饰及其对血管素II诱导的HK-2细胞损伤的保护作用
Shuqian Chen1, Shuqi He2, Siyi Song2
1Jinhua Municipal Central Hospital Jinhua China.
RSC medicinal chemistry
|November 3, 2025
概括
硫化剂显著增强了LR-7的作用.
科学领域:
- 生物化学 生物化学
- 酸科学 酸科学
- 药用化学 医学化学
背景情况:
- 的功能依赖于序列,但天然氨基酸的多样性是有限的.
- 探索增强生物活性的修改对于治疗开发至关重要.
研究的目的:
- 调查硫化对LALFVPR (LR-7) 的功能特征的影响.
- 评估改性的水溶性,稳定性,抗氧化,抗炎和血管酶转化酶 (ACE) 抑制活性的改善.
主要方法:
- 合成的硫化 LC(SO3) LFVPR (LR-7S). 这是一种合成的硫化.
- 评估水溶性和胃液稳定性.
- 在HK-2细胞中评估了细胞损伤,线粒体膜潜力,细胞活力,活性氧物种 (ROS) 水平和抗氧化酶活动 (CAT,SOD).
- 测量了炎症标志物的水平 (MCP-1,VCAM-1,NF-κB).
- 确定了ACE结合能量和ACE抑制活性.
主要成果:
- 与LR-7相比,LR-7S的水溶性增加了46倍,并增强了胃稳定性.
- LR-7S治疗减轻了血管新素II诱导的细胞损伤,增加了细胞活力,减少了ROS,并增强了抗氧化酶活动.
- 这两种都降低了炎症标志物,LR-7S表现出优异的ACE抑制 (162%高) 和较低的ACE结合能.
结论:
- 硫化是一种有效的策略,用于增强结构和生物活性.
- 硫化LR-7S显示出管理高血压病的显著潜力.
- 需要进一步的体内研究来澄清代谢途径.
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