Azidothymidine “Clicked” into 1,2,3-Triazoles: First Report on Carbonic Anhydrase–Telomerase Dual-Hybrid Inhibitors
摘要:
Cancer cells rely on the enzyme telomerase (EC 2.7.7.49) to promote cellular immortality. Telomerase inhibitors (i.e., azidothymidine) can represent promising antitumor agents, although showing high toxicity when administered alone. Better outcomes were observed within a multipharmacological approach instead. In this context, we exploited the validated antitumor targets carbonic anhydrases (CAs; EC 4.2.1.1) IX and XII to attain the first proof of concept on CA-telomerase dual-hybrid inhibitors. Compounds 1b, 7h, 8b, and 11b showed good in vitro inhibition potency against the CAs IX and XII, with K-I values in the low nanomolar range, and strong antitelomerase activity in PC-3 and HT-29 cells (IC(50 )values ranging from 5.2 to 9.1 mu M). High-resolution X-ray crystallography on selected derivatives in the adduct with hCA II as a model study allowed to determine their binding modes and thus to set the structural determinants necessary for further development of compounds selectively targeting the tumoral cells.
A class of sulfonamide carbonic anhydrase inhibitors with neuropathic pain modulating effects
作者:Fabrizio Carta、Lorenzo Di Cesare Mannelli、Melissa Pinard、Carla Ghelardini、Andrea Scozzafava、Robert McKenna、Claudiu T. Supuran
DOI:10.1016/j.bmc.2015.02.027
日期:2015.4
with several derivatives of ethoxzolamide and sulfanilamide are reported. These derivatives were investigated as inhibitors of the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1) of which multiple isoforms are known, and some appear to be involved in pain. These sulfonamides showed modest inhibition against the cytosolic isoform CA I, but were generally effective, low nanomolar CA II, VII, IX and XII
据报道,一系列苯磺酰胺碳酸酐酶(CA,EC 4.2.1.1)抑制剂结合了亲脂性的4-烷氧基和4-芳氧基部分,以及乙氧唑酰胺和磺胺的几种衍生物。研究了这些衍生物作为金属酶碳酸酐酶(CA,EC 4.2.1.1)的抑制剂,已知这些化合物有多种同工型,有些似乎与疼痛有关。这些磺酰胺类药物对胞质同工型CA I表现出适度的抑制作用,但通常是有效的低纳摩尔CA II,VII,IX和XII抑制剂。几种此类磺酰胺与CA II加成物的X射线晶体学数据使我们能够合理化良好的抑制数据。在由奥沙利铂引起的神经性疼痛的小鼠模型中,此处报道的一种强力的CA II / VII抑制剂诱导了持久的止痛作用,这一事实以前从未观察到。这是合理设计的具有镇痛有效调节作用的磺酰胺CA抑制剂的首次报道。
Benzenesulfonamides Incorporating Flexible Triazole Moieties Are Highly Effective Carbonic Anhydrase Inhibitors: Synthesis and Kinetic, Crystallographic, Computational, and Intraocular Pressure Lowering Investigations
作者:Alessio Nocentini、Marta Ferraroni、Fabrizio Carta、Mariangela Ceruso、Paola Gratteri、Cecilia Lanzi、Emanuela Masini、Claudiu T. Supuran
DOI:10.1021/acs.jmedchem.6b01389
日期:2016.12.8
series of benzenesulfonamide containing compounds that incorporate the phenyl-1,2,3-triazole moieties. We explored the insertion of appropriate linkers, such as ether, thioether, and amino type, into the inner section of the molecules with the intent to confer additional flexibility. All obtained compounds were screened in vitro as inhibitors of the physiologically relevant human (h) isoforms of the metalloenzyme
Click-tailed benzenesulfonamides as potent bacterial carbonic anhydrase inhibitors for targeting Mycobacterium tuberculosis and Vibrio cholerae
作者:Silvia Bua、Sameh M. Osman、Sonia Del Prete、Clemente Capasso、Zeid AlOthman、Alessio Nocentini、Claudiu T. Supuran
DOI:10.1016/j.bioorg.2019.01.065
日期:2019.5
eradicate the tuberculosis epidemic by 2030. The derivatives here reported represent interesting leads towards the optimization of new antibiotic agents showing excellent inhibitory efficiency and selectivity for the target CAs over the human (h) off-target isoform hCA I. In detail, the first subset of derivativespotentlyinhibits VchCAα in a low nanomolarrange (KIs between 0.72 and 22.6 nM). Compounds
A tetrafunctionalized zinc porphyrin with coumarin is able to accumulate on cell membrane by targeting selectively membrane-bound tumour-associated CA IX/CAXII, to impair pancreas cancer cell proliferation and to kill them by photodynamic therapy.
具有香豆素的四官能化锌卟啉能够通过选择性靶向与膜结合的肿瘤相关 CA IX/CAXII 在细胞膜上积累,从而损害胰腺癌细胞增殖并通过光动力疗法杀死它们。