The instant invention provides for a method of inhibiting prenyl-protein transferases and treating cancer which comprises administering to a mammal a prenyl-protein transferase inhibitor which is efficacious in vivo as an inhibitor of geranylgeranyl-protein transferase type I (GGTase-I). The invention also provides for a method of inhibiting farnesyl-protein transferase and geranylgeranyl-protein transferase type I by administering a compound that is a dual inhibitor of both of those prenyl-protein transferases. The invention also provides for a method of identifying such a compound, the method comprising a modified inhibitory assay that incorporates a modulator anion that alters the in vitro potency of prenyl-protein transferase inhibitors in a way that predicts their potency in vivo, thus providing convenient identification of compounds that possess such in vivo activity.
本发明提供了一种抑制
异戊二烯基-蛋白质转移酶并治疗癌症的方法,包括向哺乳动物内部给予一种在体内作为
异戊二烯基-蛋白质转移酶I型(GGTase-I)
抑制剂有效的
异戊二烯基-蛋白质转移酶
抑制剂。本发明还提供了一种通过给予既是两种
异戊二烯基-蛋白质转移酶的双重
抑制剂的化合物来抑制法尼酰-蛋白质转移酶和
异戊二烯基-蛋白质转移酶I型的方法。本发明还提供了一种识别这种化合物的方法,该方法包括一种修改的抑制性测定,其中包含一种调节阴离子,该阴离子改变了体外
异戊二烯基-蛋白质转移酶
抑制剂的效力,以预测它们在体内的效力,因此提供了方便识别具有这种体内活性的化合物的方法。