Discovery of 5-naphthylidene-2,4-thiazolidinedione derivatives as selective HDAC8 inhibitors and evaluation of their cytotoxic effects in leukemic cell lines
作者:Kalpana Tilekar、Neha Upadhyay、Niklas Jänsch、Markus Schweipert、Piotr Mrowka、F.J. Meyer-Almes、C.S. Ramaa
DOI:10.1016/j.bioorg.2019.103522
日期:2020.1
potency. However, hydroxamate class HDAC inhibitors have raised increasing concerns about their mutagenic character. Therefore, non-hydroxamate based inhibitors could prove to be safer than hydroxamates. In the present work, a series of novel 5-naphthylidene-2,4-thiazolidinedione was designed and evaluated as potential antiproliferative agents targeting selectively HDAC8 enzyme. Eleven novel derivatives
组蛋白脱乙酰基酶(HDACs)正在探索作为治疗不同类型癌症的治疗靶标。HDAC8是I类HDAC,涉及各种适应症领域,包括不同类型的癌症,尤其是儿童神经母细胞瘤,作为治疗靶标。先前描述的大多数HDAC8选择性抑制剂均具有异羟肟酸酯功能,可作为锌结合基团(ZBG)发挥作用。但是,异羟肟酸酯类HDAC抑制剂引起了人们对其诱变性的日益关注。因此,基于非异羟肟酸酯的抑制剂可证明比异羟肟酸酯更安全。在目前的工作中,设计并评估了一系列新型的5-萘-2,4-噻唑烷二酮作为靶向选择性HDAC8酶的潜在抗增殖剂。合成了11种新的衍生物,通过光谱技术纯化和表征。发现化合物3k和3h是最有效的HDAC8选择性抑制剂,IC50值分别为2.7μM和6.3μM。发现3a至3i在白血病细胞系中最具细胞毒性。发现3a和3h均诱导细胞凋亡并导致细胞周期停滞在G2 / M期。