作者:José M. Quintela、Carlos Peinador、Carmen Veiga、Liliane González、Luis M. Botana、Amparo Alfonso、Ricardo Riguera
DOI:10.1016/s0968-0896(98)00150-3
日期:1998.10
The synthesis of a series of pyridothienopyrimidines and their evaluation as inhibitors or inducers of the release of histamine from rat mast cells is reported. The activity was measured after immunological stimulation with ovoalbumin and chemical stimulation with polymer 48/80 and the drugs adryamicin and vinorelbine. The experiments were carried out with and without preincubation of the stimulus
报道了一系列吡啶并吡啶并嘧啶的合成及其作为抑制或诱导大鼠肥大细胞释放组胺的评估。在用卵清蛋白免疫刺激和用聚合物48/80以及药物阿德里亚霉素和长春瑞滨进行化学刺激后测量活性。在加入药物之前和不与细胞预孵育刺激的情况下进行实验。几种吡啶并嘧啶并显示出抑制作用的IC50值在2-25 microM之间,这表明它们的效价比色甘酸酯(DSCG)高100倍,比酮替芬高10倍。在所有测试条件下,化合物9l是有效的抑制剂,IC50 = 9-25 microM。吡啶并吡啶并嘧啶4l和9e是免疫学中非常强的组胺释放诱导剂(4l,170-230%)和化学(9e,100-150%)分析。化合物4l和9i对P-388,A-549,HT-29和MEL-28肿瘤细胞系具有体外细胞毒性(IC50 = 0.1-0.2微克/毫升)。