Design, synthesis and binding mode of interaction of novel small molecule o-hydroxy benzamides as HDAC3-selective inhibitors with promising antitumor effects in 4T1-Luc breast cancer xenograft model
作者:Ganesh Routholla、Sravani Pulya、Tarun Patel、Nilanjan Adhikari、Sk. Abdul Amin、Milan Paul、Srividya Bhagavatula、Swati Biswas、Tarun Jha、Balaram Ghosh
DOI:10.1016/j.bioorg.2021.105446
日期:2021.12
the most promising targets to develop anticancer therapeutics. In continuation of our quest for selective HDAC3 inhibitors, a series of small molecules having o-hydroxy benzamide as the novel zinc binding group (ZBG) has been introduced for the first time that can be able to produce good HDAC3-selectivity over other HDACs. The most promising HDAC3 inhibitors, 11a and 12b, displayed promising in vitro
组蛋白去乙酰化酶 3 (HDAC3) 是开发抗癌疗法最有希望的靶点之一。为了继续我们对选择性 HDAC3 抑制剂的探索,首次引入了一系列具有邻羟基苯甲酰胺作为新型锌结合基团 (ZBG) 的小分子,它们能够产生优于其他 HDAC 的良好 HDAC3 选择性。最有希望的 HDAC3 抑制剂11a和12b显示出有希望的体外抗癌活性,对正常肾细胞的毒性较小。这些化合物显着上调组蛋白乙酰化并诱导 B16F10 细胞 G2/M 期阻滞的细胞凋亡。化合物11a在雌性 Balb/c 小鼠的 4T1-Luc 乳腺癌异种移植小鼠模型中表现出有效的抗肿瘤功效。它还显示出显着的肿瘤生长抑制,没有一般毒性,并且在肿瘤切除后延长了存活率。它显着诱导更高的ROS产生,导致细胞凋亡。在从化合物11a处理的小鼠中分离出的主要器官中没有发现明显的毒性。化合物11a还诱导 acH3K9、acH4K12、caspase-3 和 caspase-7