等离子体:自由基反应性和生物膜相关的转变异构体的识别
Carla Ferreri1, Alessandra Ferocino1, Gessica Batani1
1Institute for Organic Synthesis and Photoreactivity (ISOF), National Research Council (CNR), Via P. Gobetti, 101, 40129 Bologna, Italy.
Biomolecules
|May 27, 2023
概括
血原体,重要的膜脂,在自由基条件下经历 cis-trans 异体化,产生 lipidomics 独特的分析特征. 这项研究阐明了它们的反应性,这对于理解生物体中的激进应激至关重要.
科学领域:
- 生物化学 生物化学
- 利皮多米克 (Lipidomics) 是一种消化剂.
- 膜生物学 膜生物学
背景情况:
- 等离子体是独特的膜脂,含有乙烯和多不和脂肪酸 (PUFA) 残留物.
- 它们的双键通常处于cis配置,但通过cis-trans异构化反应性尚不清楚.
- 等离子原体涉及过氧化过程和细胞激素应激.
研究的目的:
- 在自由基条件下研究等离子原体的 cis-trans 异构.
- 为了表征等离子体异构化产品的分析特征,用于OMIC应用.
- 为了阐明生物仿真系统中的等离子体反应性,并确定红细胞 (RBC) 膜的最佳分析协议.
主要方法:
- 使用了1-(1Z-octadecenyl)-2-arachidonoyl-sn-glycero-3-phosphocholine (C18等离子体-20:4PC) 作为一个模型等离子体.
- 在类似芬顿的条件下使用含有等离子素的脂质体和红细胞幽灵.
- 在 thiols 的存在和不存在下,在酸性/性条件下研究的反应.
主要成果:
- 证明 cis-trans 异构化发生在两种不和的等离子体分子中.
- 确定了等离子体异构化产品的特征分析特征.
- 基于组成,观察脂质体和红细胞幽灵的差异反应结果,影响过氧化和异构.
- 确定了RBC膜脂肪酸分析的最佳条件,考虑到它们的高等离子素含量.
结论:
- 等离子体的cis-trans异构化是在自由基压力下显著的反应途径.
- 了解等离子素反应性对于脂质组学研究和评估生物系统中的激进应激是至关重要的.
- 在红细胞膜中进行血原体分析的已建立的分析见解.
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