Comprehensive analysis of PPARγ agonist activities of stereo-, regio-, and enantio-isomers of hydroxyoctadecadienoic acids
作者:Aya Umeno、Mami Sakashita、Sakiko Sugino、Kazutoshi Murotomi、Tsugumi Okuzawa、Naoki Morita、Kentaro Tomii、Yuko Tsuchiya、Kazuhiko Yamasaki、Masanori Horie、Kentaro Takahara、Yasukazu Yoshida
DOI:10.1042/bsr20193767
日期:2020.4.30
binding of HODE isomers to PPARγ LBD was determined by water-ligand observed via gradient spectroscopy (WaterLOGSY) NMR experiments. In contrast, there were differences in PPARγ agonist activities among 9- and 13-HODE stereo-isomers and 12- and 13-HODE enantio-isomers in a dual-luciferase reporter assay. Interestingly, the activity of 9-HODEs was less than that of other regio-isomers, and 9-(E,E)-HODE tended
羟基十八碳二烯酸(HODE)是通过亚油酸酯的氧化和还原生成的。HODE有几种区域异构体和立体异构体,它们在体内的浓度高于其他脂质。尽管构象异构体可能具有不同的生物学活性,但尚未对HODE异构体的细胞内功能进行比较分析。我们评估了过氧化物酶体增殖物激活受体γ(PPARγ)(糖尿病的治疗靶点)的转录活性,并分析了HODE异构体的PPARγ激动剂活性。12种类型的HODE异构体(9-,10-,12-和13-HODEs)对接姿势的最低分数在将HODE对接PPARγ配体结合域(LBD)时几乎相似。HODE异构体与PPARγLBD的直接结合是通过水配体确定的,通过梯度光谱法(WaterLOGSY)NMR实验观察到。相反,在双重荧光素酶报告基因测定中,9-和13-HODE立体异构体以及12-和13-HODE对映异构体的PPARγ激动剂活性存在差异。有趣的是,9-HODEs的活性低于其他区域异构体,9-(