Regulation of Retinoidal Actions by Diazepinylbenzoic Acids. Retinoid Synergists Which Activate the RXR−RAR Heterodimers
作者:Hiroki Umemiya、Hiroshi Fukasawa、Masayuki Ebisawa、Laurence Eyrolles、Emiko Kawachi、Ghislaine Eisenmann、Hinrich Gronemeyer、Yuichi Hashimoto、Koichi Shudo、Hiroyuki Kagechika
DOI:10.1021/jm9704309
日期:1997.12.1
15-pentamethyldinaphtho[2,3-b][1,2-e]diazepin-7-yl) benzoic acid (LE540, 17), exhibits a 1 order of magnitude higher antagonistic potential than the parental LE135 (6). In contrast, 4-[5H-2,3-(2,5-dimethyl-2,5-hexano)-5-methyldibenzo[b,e] [1,4]diazepin-11-yl]-benzoic acid (HX600, 7), a structural isomer of the antagonistic LE135 (6), enhanced HL-60 cell differentiation induced by RAR agonists, such as Am80 (2)
在人HL-60早幼粒细胞白血病细胞中,二氮杂pin基苯甲酸衍生物可以对天然或合成类维生素A的诱导分化活性表现出拮抗或协同作用,该活性很大程度上取决于二氮杂ring环上取代基的性质。因此,类视黄醇拮抗剂LE135(6),4-(13H-10,11,12,13-tetrahydro-10,10,13,13,15-五甲基二萘并[2,3-b] [1,2 -e] diazepin-7-yl)苯甲酸(LE540,17)的拮抗潜力比亲代LE135(6)高1个数量级。相反,4- [5H-2,3-(2,5-二甲基-2,5-己基)-5-甲基二苯并[b,e] [1,4]二氮杂-11-基]-苯甲酸(HX600 ,LEAF(6)的结构异构体,(7)增强了RAR激动剂(例如Am80)诱导的HL-60细胞分化(2)。噻嗪类化合物HX630(29)和氮杂类衍生物HX640(30)的协同作用进一步增强。两者都比HX600(7