本文提出了一种基于硫化氢 (H 2 S)的抗炎作用和抑制碳酸酐酶 (CAs) IX 和 XII 的有效治疗方法来治疗关节炎。H 2 S 是一种人体气体递质,可在低浓度下调节炎症反应。抑制 CA IX 和 XII 可以恢复酸性发炎滑液中的正常 pH 值,从而减轻关节炎症状。我们在此报告了 H 2 S 供体─CA 抑制剂 (CAI) 杂化衍生物的设计。后者在体外作为人类 CA I、II、IV、IX 和 XII 的抑制剂进行了测试,与 CAI 合成前体相比,显示出显着增加的抑制效力/异构体选择性。最好的化合物表现出持续释放 H 的能力2 S 并在关节炎大鼠模型中产生有效的疼痛缓解作用。与单一H 2 S供体、CAI片段或其共同给药相比,化合物26在给药后45分钟完全恢复疼痛状态,具有增强的体内抗痛觉过敏作用。
Carbonic anhydrase inhibitors. Inhibition of human cytosolic isoforms I and II with (reduced) Schiff’s bases incorporating sulfonamide, carboxylate and carboxymethyl moieties
作者:Gihane Nasr、Alina Cristian、Mihail Barboiu、Daniella Vullo、Jean-Yves Winum、Claudiu T. Supuran
DOI:10.1016/j.bmc.2014.03.041
日期:2014.5
cytosolic human carbonicanhydrase (hCA, EC 4.2.1.1) isoenzymes, hCA I and II. The Ki values of the Schiffbases were in the range of 7.0–21,400 nM against hCA II and of 52–8600 nM against hCA I, respectively. The corresponding amines showed Ki values in the range of 8.6 nM–5.3 μM against hCA II, and of 18.7–251 nM against hCA I, respectively. Unlike the imines, the reduced Schiffbases are stable to hydrolysis
Inclusion of a 5-fluorouracil moiety in nitrogenous bases derivatives as human carbonic anhydrase IX and XII inhibitors produced a targeted action against MDA-MB-231 and T47D breast cancer cells
作者:Andrea Petreni、Alessandro Bonardi、Carrie Lomelino、Sameh M. Osman、Zeid A. ALOthman、Wagdy M. Eldehna、Radwan El-Haggar、Robert McKenna、Alessio Nocentini、Claudiu T. Supuran
DOI:10.1016/j.ejmech.2020.112112
日期:2020.3
while the 5-FU coumarin derivatives showed a potent and totally selective inhibitory action against the target CA IX/XII over off-target CA I/II. The X-ray solved crystal structure of CA II in adduct with a representative uracil derivative provided insights on the binding mode to the target of such pyrimidine derivatives. On the basis of potency and selectivity inhibition profiles, coumarin 12a, the sulfonamide
本文设计了一系列新的嘧啶衍生物作为人类碳酸酐酶(CA,EC 4.2.1.1)抑制剂,方法是在肿瘤相关CA的含氮碱调节剂中加入5-氟尿嘧啶(5-FU)部分(广泛使用的抗癌药物) 。大多数磺酰胺衍生物可有效抑制目标CA IX(KI在0.47-44.7 nM范围内)和CA XII(KI在2.9-83.1 nM范围内),而5-FU香豆素衍生物则显示出对这种化合物有效的抑制作用。目标CA IX / XII而非目标CA I / II。X射线解析的具有代表性尿嘧啶衍生物的加合物中CA II的晶体结构提供了与此类嘧啶衍生物的靶标结合模式的见解。根据效价和选择性抑制曲线,香豆素12a,磺酰胺CAI表现出最大的II / IX特异性(4e,在体外测试了6b和6d)和独特的亚纳摩尔型CA IX抑制剂10a对一组八种癌细胞系的抗增殖作用。乳腺癌细胞系MDA-MB-231和T47D最易感,其IC50值处于中低微摩尔范围(分别为2
Design and synthesis of sulfonamides incorporating a biotin moiety: Carbonic anhydrase inhibitory effects, antiproliferative activity and molecular modeling studies
Sulfonamides constitute an important class of classical carbonicanhydrase (CA, EC 4.2.1.1) inhibitors. Herein we have accomplished the conjugation of biotin with an ample number of sulfonamide motifs with the aim of testing them in vitro as inhibitors of the humancarbonicanhydrase (hCA) isoforms I and II (cytosolic isozymes), as well as hCA IX and XII (transmembrane, tumor-associated enzymes). Most
磺胺类药物是一类重要的经典碳酸酐酶 (CA、EC 4.2.1.1) 抑制剂。在此,我们完成了生物素与大量磺酰胺基序的缀合,目的是在体外测试它们作为人碳酸酐酶 (hCA) 同工型 I 和 II(胞质同工酶)以及 hCA IX 和 XII 的抑制剂。跨膜、肿瘤相关酶)。大多数这些新合成的化合物表现出令人感兴趣的抑制特性,其活性在纳摩尔范围内。SLC-0111 中也发现了 4-FC 6 H 4部分的存在,对肿瘤相关缺氧诱导的 hCA 同工型 XII 具有出色的选择性,抑制常数 (K I ) 为 4.5 nM。2-萘基衍生物是最有效的 hCA IX 抑制剂 (K I = 6.2 nM),比 AAZ (K I = 25 nM) 强 4 倍, 且选择性非常好。选择一些化合物对一组 3 种人类肿瘤细胞系进行抗增殖活性测试,其中一种化合物对胶质母细胞瘤、三阴性乳腺癌和胰腺癌细胞系显示出抗增殖活性。
Benzenesulfonamide derivatives as potent acetylcholinesterase, α-glycosidase, and glutathione S-transferase inhibitors: biological evaluation and molecular docking studies
Sulfonamide derivatives exhibit a wide biological activity and can function as potential medical molecules in the development of a drug. Studies have reported that the compounds have an effect on many enzymes. In this study, the derivatives of amine sulfonamide (1i-11i) were prepared with reduced imine compounds (1-11) with NaBH4 in methanol. The synthesized compounds were fully characterized by spectral data and analytical. The effect of the synthesized derivatives on acetylcholinesterase (AChE), glutathione S-transferase (GST) and a-glycosidase (alpha-GLY) enzymes were determined. For the AChE and alpha-GLY, the most powerful inhibition was observed on 10 and 10i series with K-I value in the range 2.26 +/- 0.45-3.57 +/- 0.97 and 95.73 +/- 13.67-102.45 +/- 11.72 mu M, respectively. K-I values of the series for GST were found in the range of 22.76 +/- 1.23-49.29 +/- 4.49. Finally, the compounds have a stronger inhibitor in lower concentrations by the attachment of functional electronegative groups such as two halogens (-Br and -CI), -OH to the benzene ring and -SO2NH2. The crystal structures of AChE, alpha-GLY, and GST in complex with selected derivatives 4 and 10 show the importance of the functional moieties in the binding modes within the receptors.