Antimalarial evaluation of copper(II) nanohybrid solids: inhibition of plasmepsin II, a hemoglobin-degrading malarial aspartic protease from Plasmodium falciparum
作者:Subash Chandra Mohapatra、Hemandra Kumar Tiwari、Manisha Singla、Brijesh Rathi、Arun Sharma、Kuldeep Mahiya、Mukesh Kumar、Saket Sinha、Shyam Singh Chauhan
DOI:10.1007/s00775-009-0610-9
日期:2010.3
inhibition of plasmepsin II by LCu(CH(3)COO)(2) and LCuCl(2) show that the inhibition is competitive with respect to the substrate. The inhibition constants of LCu(CH(3)COO)(2) and LCuCl(2) were found to be 10 and 13 microM, respectively. The IC(50) values for inhibition of plasmepsin II by LCu(CH(3)COO)(2) and LCuCl(2) were found to be 14 and 17 microM, respectively. Copper(II) metal capped by a benzimidazole
合成了一类新的铜 (II) 纳米杂化固体 LCu(CH(3)COO)(2) 和 LCuCl(2),并通过透射电子显微镜、动态光散射和红外光谱对其进行了表征,并已发现被双(苯并咪唑)二酰胺配体(L)封端。发现这些纳米杂化固体的粒径分别在 5-10 和 60-70 nm 的范围内。评估了这些纳米混合固体对恶性疟原虫(MRC 2)的氯喹敏感分离物的体外抗疟活性。这些纳米混合固体和血浆蛋白酶 II(一种天冬氨酸蛋白酶和抗疟药物开发的合理新靶点)之间的相互作用,据信这对于寄生虫降解血红蛋白至关重要,已经使用 Lineweaver-Burk 图通过紫外-可见光谱和抑制动力学进行了测定。我们的研究结果表明这两种化合物具有抗疟活性,并且 IC(50) 值 (0.025-0.032 microg/ml) 类似于生物测定中使用的标准药物氯喹的 IC(50) 值。LCu(CH(3)COO)(2) 和 LCuCl(2)