Tazemetostat (E7438, EPZ-6438, E-7438, EPZ6438)是一种有效的、选择性、具有口服生物活性的EZH2抑制剂(Ki=2.5 nM),比作用于EZH1选择性高35倍,比作用于14种其他HMT选择性高4500多倍。在野生型和突变型淋巴瘤细胞中,EPZ-6438阻断组蛋白H3的Lys27甲基化,IC50范围为2 nM到90 nM。EPZ-6438还可以引起神经元分化的基因表达和细胞周期抑制,同时抑制Hedgehog通路基因,MYC和EZH2。另外,在去除SMARCB1的MRT细胞中,EPZ-6438诱导细胞凋亡和分化,具有明显的抗增殖作用,并引起移植瘤小鼠中肿瘤衰退。
EPZ-6438目前处于临床Ⅱ期试验,用于治疗弥漫性大B细胞性淋巴瘤。
参考文献
[1]. Knutson SK, et al. Durable tumor regression in genetically altered malignant rhabdoid tumors by inhibition of methyltransferase EZH2. Proc Natl Acad Sci U S A. 2013 May 7;110(19):7922-7.
[2]. Knutson SK, et al. Selective inhibition of EZH2 by EPZ-6438 leads to potent antitumor activity in EZH2-mutant non-Hodgkin lymphoma. Mol Cancer Ther. 2014 Apr;13(4):842-54.
客户使用本产品发表的科研文献(部分)
[1] Zhen Z, Ling L, Li G, et al. EZH2/EHMT2 Histone Methyltransferases Inhibit the Transcription of DLX5 and Promote the Transformation of Myelodysplastic Syndrome to Acute Myeloid Leukemia. Front Cell Dev Biol. 2021 Aug 2;9:619795. IF: 6.684
[2] Zhen Z, Xu Y, Wang S, et al. LncRNA SNHG17 promotes gastric cancer progression by epigenetically silencing of p15 and p57. J Cell Physiol. 2019 Apr;234(4):5163-5174. IF: 3.923
粉末直接保存于-20 ºC,有效期2年。溶于DMSO后建议分装后-20ºC避光保存,避免反复冻存,至少可存放6个月。
[1] Zheng Z, Li L, Li G, et al. EZH2/EHMT2 Histone Methyltransferases Inhibit the Transcription of DLX5 and Promote the Transformation of Myelodysplastic Syndrome to Acute Myeloid Leukemia. Front Cell Dev Biol. 2021;9:619795. Published 2021 Aug 2. doi:10.3389/fcell.2021.619795(IF:6.684)
[2] Zhang G, Xu Y, Wang S, et al. LncRNA SNHG17 promotes gastric cancer progression by epigenetically silencing of p15 and p57. J Cell Physiol. 2019;234(4):5163-5174. doi:10.1002/jcp.27320(IF:3.923)