<i>In Vitro</i>Study of Isoflavones and Isoflavans as Potent Inhibitors of Human 12- and 15-Lipoxygenases
作者:Carolina Mascayano、Victoria Espinosa、Silvia Sepúlveda-Boza、Eric K. Hoobler、Steve Perry
DOI:10.1111/cbdd.12157
日期:2013.9
In this study, we have investigated 16 isoflavone and isoflavan derivatives as potential inhibitors of human lipoxygenase (platelet 12‐lipoxygenase, reticulocyte 15‐lipoxygenase‐1, and epithelial 15‐lipoxygenase‐2). The flavonoid baicalein, a known lipoxygenase inhibitor, was used as positive control. Four compounds, 6,7‐dihydroxy‐3′‐chloroisoflavone (1c), 7‐hydroxy‐8‐methyl‐4′‐chloroisoflavan (5a)
在这项研究中,我们研究了16种异黄酮和异黄酮衍生物作为人类脂氧合酶的潜在抑制剂(血小板12-脂氧合酶,网状细胞15-脂氧合酶-1和上皮15-脂氧合酶-2)。类黄酮黄ical素(一种已知的脂加氧酶抑制剂)用作阳性对照。四种化合物,6,7-二羟基-3'-氯异黄酮(1c),7-羟基-8-甲基-4'-氯异黄酮(5a),7,8-二羟基-4'-甲基异黄酮(5b)和7, 8-dihydroxy-3'methylisoflavan(5c)是有效的12-lipoxygenases和15-lipoxygenase-1的抑制剂,IC 50小于10μm,而6,7-dihydroxy-4-4'-nitroisoflavone(1b)是12-脂氧合酶的选择性抑制剂。对三种最佳抑制剂(1b,5b,5c)进行了对接研究,抗氧化剂测定和动力学测量。结果表明,环A中的邻苯二酚基团对于这些化合物的抗氧化性能至关重要,并且可能对