作者:Renata Mikstacka、Marcin Wierzchowski、Zbigniew Dutkiewicz、Agnieszka Gielara-Korzańska、Artur Korzański、Anna Teubert、Stanisław Sobiak、Wanda Baer-Dubowska
DOI:10.1039/c3md00317e
日期:——
A novel series of methoxy-trans-stilbenes with 3,4-dimethoxy motifs was designed and synthesized. The inhibitory potency of 3,4-dimethoxystilbene derivatives against cytochrome P450 isozymes CYP1A1, CYP1B1 and CYP1A2 was evaluated. 3,4,2â²-Trimethoxy-trans-stilbene (3,4,2â²-TMS) exhibited extremely potent inhibitory action against CYP1B1 activity with an IC50 of 0.004 μM. 3,4,2â²-TMS exhibited 90-fold selectivity for CYP1B1 over CYP1A1 and 830-fold selectivity for CYP1B1 over CYP1A2. However, 3,4,2â²,4â²-tetramethoxy-trans-stilbene appeared to be the most selective inhibitor of both CYP1B1 and CYP1A1 showing very low affinity toward CYP1A2. Complementary experimental studies and computational methods were used to explain what structural determinants decide the specific affinity of stilbene derivatives to CYP1A2 and CYP1B1 binding sites.
一种新型的含有3,4-二甲氧基基团的反式-苯乙烯系列化合物被设计和合成。评估了3,4-二甲氧基苯乙烯衍生物对细胞色素P450同工酶CYP1A1、CYP1B1和CYP1A2的抑制活性。3,4,2′-三甲氧基反式-苯乙烯(3,4,2′-TMS)对CYP1B1活性表现出极强的抑制作用,IC50为0.004 μM。3,4,2′-TMS在CYP1B1与CYP1A1之间表现出90倍的选择性,在CYP1B1与CYP1A2之间表现出830倍的选择性。然而,3,4,2′,4′-四甲氧基反式-苯乙烯似乎是对CYP1B1和CYP1A1最具选择性的抑制剂,对CYP1A2表现出非常低的亲和力。为了说明苯乙烯衍生物特定的亲和力决定因素,补充实验研究和计算方法被用来解释结构特征如何影响与CYP1A2和CYP1B1结合位点的相互作用。