The invention relates to inhibition of wild-type and certain mutant forms of human histone methyltransferase EZH2, the catalytic subunit of the PRC2 complex which catalyzes the mono- through tri-methylation of lysine 27 on histone H3 (H3-K27). In one embodiment the inhibition is selective for the mutant form of the EZH2, such that trimethylation of H3-K27, which is associated with certain cancers, is inhibited. The methods can be used to treat cancers including follicular lymphoma and diffuse large B-cell lymphoma (DLBCL). Also provided are methods for identifying small molecule selective inhibitors of the mutant forms of EZH2 and also methods for determining responsiveness to an EZH2 inhibitor in a subject.
该发明涉及抑制人类组蛋白甲基转移酶EZH2的野生型和某些突变形式,该酶是PRC2复合物的催化亚单位,催化组蛋白H3(H3-K27)上赖
氨酸27的单甲基化至三甲基化。在一种实施方式中,抑制是选择性的,针对EZH2的突变形式,从而抑制了与某些癌症相关的H3-K27的三甲基化。这些方法可用于治疗包括滤泡性淋巴瘤和弥漫性大B细胞淋巴瘤(DLBCL)在内的癌症。还提供了识别EZH2突变形式的小分子选择性
抑制剂的方法,以及确定受试者对EZH2
抑制剂的反应性的方法。