Dihydrofolate reductase inhibition effect of 5-substituted pyrido[2,3-d]pyrimidines: Synthesis, antitumor activity and molecular modeling study
作者:Ola A. Abdelaziz、Walaa M. El Husseiny、Khalid B. Selim、Hassan M. Eisa
DOI:10.1016/j.bioorg.2019.103076
日期:2019.9
as a positive control. Compounds 3, 4, 9, 11, 13, 14, 15 and 17 exhibited the highest antitumor activity against the tested cell lines and were selected to screen their enzymatic inhibition against dihydrofolate reductase enzyme (DHFR) compared with the reference drug methotrexate (MTX), to explain the probable mechanism of action of the observed anticancer activity. Compound 11 displayed the highest
合成了在C-5位具有取代基的一系列新的吡啶并[2,3-d]嘧啶3-18。测试所有化合物对五种人类癌细胞系的体外抗肿瘤活性。使用阿霉素作为阳性对照的肝细胞癌(HePG2),乳腺癌(MCF-7),人前列腺癌(PC3),结肠直肠癌(HCT-116)和宫颈癌(Hela)。与参考药物甲氨蝶呤(MTX)相比,化合物3、4、9、11、13、14、15和17对测试的细胞系表现出最高的抗肿瘤活性,并且被选择用于筛选其对二氢叶酸还原酶(DHFR)的酶抑制作用。 ,以解释观察到的抗癌活性的可能作用机理。化合物11表现出最高的抑制活性(IC50 = 6。与MTX(IC50 = 5.57 µM)相比,被测化合物的含量为5 µM。同样,化合物13和14对DHFR表现出高抑制活性,IC50值分别为7.1和8.7 µM。在八种针对MTX的抑制剂中,活性最高的DHFR抑制剂11、13和14和活性最低的DHFR抑制剂11、1