N -Substituted and ring opened saccharin derivatives selectively inhibit transmembrane, tumor-associated carbonic anhydrases IX and XII
作者:Jekaterīna Ivanova、Fabrizio Carta、Daniela Vullo、Janis Leitans、Andris Kazaks、Kaspars Tars、Raivis Žalubovskis、Claudiu T. Supuran
DOI:10.1016/j.bmc.2017.04.007
日期:2017.7
well as some ring opened derivatives were prepared and investigated as inhibitors of the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1). The widespread cytosolic isoforms CA I and II were not inhibited by these sulfonamides whereas transmembrane, tumor-associated ones were effectively inhibited, with KIs in the range of 22.1-481nM for CA IX and of 3.9-245nM for hCA XII. Although the inhibition mechanism
制备了一系列结合有芳基,烷基和炔基部分的N-取代糖精,以及一些开环衍生物,并作为金属酶碳酸酐酶的抑制剂进行了研究(CA,EC 4.2.1.1)。这些磺胺类药物不会抑制广泛的胞质亚型CA I和II,而与肿瘤相关的跨膜被有效抑制,CA IX的KIs范围为22.1-481nM,hCA XII的KIs范围为3.9-245nM。尽管目前尚不清楚这些叔/仲磺酰胺的抑制机制,但是对于抑制与胞质广泛分布的同工型相关的肿瘤的良好疗效,尤其是选择性,使得这些衍生物作为酶抑制剂具有相当大的兴趣,并具有多种药理应用。