目的综述微管蛋白秋水仙碱结合位点抑制剂Combretastatin A-4(CA-4)类似物的研究进展。方法依据近期国内外公开发表的49篇文献,将CA-4类似物的研究进展分类、归纳并总结。结果微管蛋白秋水仙碱结合位点抑制剂(colchicine binding site i...目的综述微管蛋白秋水仙碱结合位点抑制剂Combretastatin A-4(CA-4)类似物的研究进展。方法依据近期国内外公开发表的49篇文献,将CA-4类似物的研究进展分类、归纳并总结。结果微管蛋白秋水仙碱结合位点抑制剂(colchicine binding site inhibitors,CBSI)具有增殖抑制和血管破坏双重活性,近年来备受抗肿瘤药物研究人员的关注。CA-4类似物的抗肿瘤活性突出且结构简单,是CBSI中的重要组成部分。本文对CA-4类似物的结构特点及其构效关系进行了归纳总结。结论利用CA-4类似物的构效关系归纳总结进行开发新药已成为研究热点。展开更多
With a view to finding out precisely how small peptides recognize a particular binding site of DNA, we have accomplished DNA binding studies of two peptides, H-Tyr-Arg-OH (YR) and H-Gly-Gly-His-OH (GGH) by using measu...With a view to finding out precisely how small peptides recognize a particular binding site of DNA, we have accomplished DNA binding studies of two peptides, H-Tyr-Arg-OH (YR) and H-Gly-Gly-His-OH (GGH) by using measurements in comparison with the binding between DNA and Hoechst 33258. The inhibition mode by YR and GGH to DNA binding of Hoechst 33258 was analyzed by Lineweaver-Burk plot which shows the plot of typical competitive inhibition at concentration of Hoechst 33258 from 3.66 ( 10-9 mol / L to 1.09 ( 10-8 mol / L. And it is concluded that YR binds to DNA in its minor groove (AT rich regions) with a binding constant K = 1.02 ( 108 (mol / L)-1. The GGH(s specificity is reduced at high concentration because it can also bind GC base pair.展开更多
文摘目的综述微管蛋白秋水仙碱结合位点抑制剂Combretastatin A-4(CA-4)类似物的研究进展。方法依据近期国内外公开发表的49篇文献,将CA-4类似物的研究进展分类、归纳并总结。结果微管蛋白秋水仙碱结合位点抑制剂(colchicine binding site inhibitors,CBSI)具有增殖抑制和血管破坏双重活性,近年来备受抗肿瘤药物研究人员的关注。CA-4类似物的抗肿瘤活性突出且结构简单,是CBSI中的重要组成部分。本文对CA-4类似物的结构特点及其构效关系进行了归纳总结。结论利用CA-4类似物的构效关系归纳总结进行开发新药已成为研究热点。
文摘With a view to finding out precisely how small peptides recognize a particular binding site of DNA, we have accomplished DNA binding studies of two peptides, H-Tyr-Arg-OH (YR) and H-Gly-Gly-His-OH (GGH) by using measurements in comparison with the binding between DNA and Hoechst 33258. The inhibition mode by YR and GGH to DNA binding of Hoechst 33258 was analyzed by Lineweaver-Burk plot which shows the plot of typical competitive inhibition at concentration of Hoechst 33258 from 3.66 ( 10-9 mol / L to 1.09 ( 10-8 mol / L. And it is concluded that YR binds to DNA in its minor groove (AT rich regions) with a binding constant K = 1.02 ( 108 (mol / L)-1. The GGH(s specificity is reduced at high concentration because it can also bind GC base pair.
