4-Oxo-2-nonenal (ONE), a product of cellular lipid oxidation, reacts nonspecifically with the lysine residues of proteins and is generated in increased amounts during degenerative diseases and cancer. We show that pyridoxamine, salicylamine, and related 2-aminomethylphenols react with ONE, to form pyrrolo[2,1-b][1,3]oxazines with the participation of both the amino and the phenolic groups. 2-Aminomethylphenols react with ONE as well as with the Michael adducts of ONE much more rapidly than lysine, suggesting their use for therapeutically scavenging ONE.
4-氧代-
2-壬烯醛(ONE)是细胞脂质氧化的产物,它能与蛋白质的赖
氨酸残基发生非特异性反应,并在退行性疾病和癌症期间产生更多的ONE。我们的研究表明,
吡多胺、
水杨酸胺和相关的 2-
氨基甲基
苯酚会与 ONE 发生反应,在
氨基和
酚基的参与下形成
吡咯并[2,1-b][1,3]恶嗪。2-
氨基甲基
苯酚与 ONE 以及 ONE 的迈克尔加合物发生反应的速度比赖
氨酸快得多,这表明它们可用于清除 ONE。