Antitumour activity of S-p-bromobenzylglutathione cyclopentyl diester in vitro and in vivo
作者:Paul J. Thornalley、Linda G. Edwards、Yubin Kang、Catherine Wyatt、Nathan Davies、Muhatri J. Ladan、John Double
DOI:10.1016/0006-2952(96)00059-7
日期:1996.5
lead to formation of the S-p-bromobenzylglutathione, inhibition of glyoxalase I activity in situ, increase in the methylglyoxal concentration after 1 hr, and induction of apoptosis after 6 hr. BrBzGSHCp2 (50-200 mg/kg) also inhibited the growth of murine adenocarcinoma 15A in vivo. Glyoxalase I inhibitor diesters may, therefore, inhibit tumour growth by inducing the accumulation of methylglyoxal in tumour
乙二醛酶I抑制剂二酯Sp-溴苄基-谷胱甘肽环戊基二酯(BrBzGSHCp2)在体外抑制人白血病60(HL60)细胞的生长。BrBzGSHCp2的中位生长抑制浓度GC50值为4.23 +/- 0.001 microM(n = 21),中毒浓度TC50中等值是8.86 +/- 0.01 microM(n = 21)。BrBzGSHCp2在孵育的第三小时内抑制DNA合成:抑制浓度中值IC50值为6.11 +/- 0.02 microM(n = 8)。HL60细胞与10 microM BrBzGSHCp2的孵育将二酯传递到细胞中:二酯的去酯化导致Sp-溴苄基谷胱甘肽的形成,原位乙二醛酶I活性的抑制,1小时后甲基乙二醛浓度的增加和诱导6小时后细胞凋亡。BrBzGSHCp2(50-200 mg / kg)在体内也能抑制鼠腺癌15A的生长。因此,乙二醛酶I抑制剂二酯可通过诱导甲基乙二醛在肿瘤细胞中的蓄积并诱导凋亡来抑制肿瘤的生长。