Differentiation inducing activity of anthracycline compounds in friend leukemia cells.
作者:Tomoko TSUJI、Hajimu MORIOKA、Misako TAKEZAWA、Toshihiko ANDO、Asao MURAI、Hiroshiro SHIBAI
DOI:10.1271/bbb1961.50.1697
日期:——
Several kinds of anthracyclines having γ-rhodomycinone as the aglycone were isolated from Streptomyces cosmosus TMF 518, and their derivatives were prepared by chemical modification. We tested their differentiation inducing activity in Friend leukemia cells and clarified their structure activity relationship as follows: 1) The aglycone, γ-rhodomycinone, had no differentiation inducing activity but was cytotoxic; 2) the compounds with two sugar chains at both C7 and CIO had more potent differentiation inducing activity than those with only a sugar chain at C-10; 3) cosmomycin C was the most favorable candidate for an anticancer agent of all anthracyclines tested, because the value of ED50 (cytotoxicity)/ED50 (differentiation) was as high as 3000; and 4) the increase in differentiation inducing activity and cytotoxicity was not always in parallel.
我们从宇宙链霉菌 TMF 518 中分离出几种以γ-罗多霉素酮为苷元的蒽环类化合物,并通过化学修饰制备了它们的衍生物。我们测试了它们在Friend白血病细胞中的分化诱导活性,并阐明了它们的结构活性关系如下:1)γ-罗多霉素酮没有分化诱导活性,但具有细胞毒性;2)C7 和 CIO 处有两条糖链的化合物比 C-10 处只有一条糖链的化合物具有更强的分化诱导活性;3)在所有测试的蒽环类化合物中,宇宙霉素 C 是最有利的抗癌候选药物,因为 ED50(细胞毒性)/ED50(分化)值高达 3000;以及 4)分化诱导活性和细胞毒性的增加并不总是同步的。