Agents with potential specificity against melanotic melanoma
作者:Ai Jeng Lin、James A. Kelley、Theodore R. Breitman、John S. Driscoll
DOI:10.1021/jm00347a005
日期:1982.5
approximately 2-fold more potent than compound 1a against either cll line and was 8-fold more potent than L-glutamic acid gamma-(4-hydroxyanilide), a natural product isolated from mushroom. No significant growthinhibitoryactivity was found for the m-hydroxy analogue 1c at 100 micrometers, the highest concentration tested. Similarly, compound 1b exhibited better activity against P-388 (ED50 = 9.5
试剂被设计为利用黑色素瘤黑色素瘤相对于正常组织的高酪氨酸酶活性。如果这些试剂发生特定的酪氨酸酶激活,则黑色素瘤细胞中有毒代谢产物的产生将产生选择性的细胞杀伤作用。三种新氨基酸1a [β-[(对羟基苯基)氨基]丙氨酸盐酸盐],1b [Nδ-(对羟基苯基)鸟氨酸盐酸盐]和1c [Nδ-(间羟基羟基苯丙氨酸)]的合成和抗肿瘤活性),二氢鸟氨酸盐酸盐]。化合物1a和1b在体外对B-16黑色素瘤的活性比在黑色素瘤黑素瘤细胞系中高约2倍。化合物1b对任一cll线的效力比化合物1a大约高2倍,并且比L-谷氨酸γ-(4-羟基苯胺)强8倍,从蘑菇中分离出的天然产品。在100微米(测试的最高浓度)下,未发现间羟基类似物1c的显着生长抑制活性。同样,化合物1b对P-388(ED50 = 9.5 x 10(-6)M)表现出比1a(ED50 = 3.2 x 10(-5)M)更好的活性,效力比1c高约30倍。针对人鼻