Lipid peroxidation: production, metabolism, and signaling mechanisms of malondialdehyde and 4-hydroxy-2-nonenal.

Lipid peroxidation: production, metabolism, and signaling mechanisms of malondialdehyde and 4-hydroxy-2-nonenal.
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DOI:
10.1155/2014/360438
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发表时间:
2014
影响因子:
--
通讯作者:
Argüelles S
Argüelles S
中科院分区:
生物学2区
文献类型:
--
作者:
Ayala A;Muñoz MF;Argüelles S

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脂质过氧化通常可以描述为氧化剂如自由基攻击含有碳-碳双键的脂质,特别是多不饱和脂肪酸(PUFA)的过程。在过去的四十年中,大量关于脂质过氧化的文献表明其在细胞生物学和人类健康中的重要作用。自20世纪70年代初以来,有关脂质过氧化主题的已发表研究文章总数为98篇(1970-1974年),并以近135倍的速度增长,在过去4年(2010-2013年)中增加了13165篇。关于参与细胞生理学和病理学以及控制脂质过氧化的新发现每天都在不断出现。鉴于这一领域的重要性,本文重点介绍了脂质过氧化的生物化学概念,两种主要的omega-6脂肪酸脂质过氧化产物的产生,代谢和信号传导机制:丙二醛(MDA),特别是4-羟基-2-壬烯醛(4-HNE),不仅概述了其作为刺激基因表达和细胞存活的信号分子的生理和保护功能,而且其细胞毒性作用抑制基因表达和促进细胞死亡。最后,概述了用于研究脂质过氧化过程的体内哺乳动物模型系统,以及与MDA和4-HNE相关的常见病理过程。
Lipid peroxidation can be described generally as a process under which oxidants such as free radicals attack lipids containing carbon-carbon double bond(s), especially polyunsaturated fatty acids (PUFAs). Over the last four decades, an extensive body of literature regarding lipid peroxidation has shown its important role in cell biology and human health. Since the early 1970s, the total published research articles on the topic of lipid peroxidation was 98 (1970–1974) and has been increasing at almost 135-fold, by up to 13165 in last 4 years (2010–2013). New discoveries about the involvement in cellular physiology and pathology, as well as the control of lipid peroxidation, continue to emerge every day. Given the enormity of this field, this review focuses on biochemical concepts of lipid peroxidation, production, metabolism, and signaling mechanisms of two main omega-6 fatty acids lipid peroxidation products: malondialdehyde (MDA) and, in particular, 4-hydroxy-2-nonenal (4-HNE), summarizing not only its physiological and protective function as signaling molecule stimulating gene expression and cell survival, but also its cytotoxic role inhibiting gene expression and promoting cell death. Finally, overviews of in vivo mammalian model systems used to study the lipid peroxidation process, and common pathological processes linked to MDA and 4-HNE are shown.
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