Antimicrobial and antitumor activity of peptidomimetics synthesized from amino acids
作者:Huan Li、Shuang Fu、Yudan Wang、Xuan Yuan、Lijia Liu、Hongxing Dong、Qiang Wang、Zhijia Zhang
DOI:10.1016/j.bioorg.2020.104506
日期:2021.1
killing by peptidomimetics while avoiding toxicity to normal cells. The influences of type of amino acid and substituent, length of substituent, and stereochemistry of amino acids on antibacterial activity and cytotoxicity of peptidomimetics were systematically investigated. The results indicate that this series of cationic peptidomimetics derived from amino acids display antitumor activity and may be
使用氨基酸与取代胺的简单偶联反应,设计并合成了 13 种源自带有烷基或乙炔基苯基部分的氨基酸的阳离子肽模拟物,模拟阳离子抗菌肽的结构。所得肽模拟物对药物敏感细菌的抗菌活性,例如革兰氏阳性葡萄球菌(金黄色葡萄球菌)和枯草芽孢杆菌、革兰氏阴性大肠杆菌(大肠杆菌)和肠沙门氏菌,以及耐药菌甲氧西林抗性金黄色葡萄球菌(MRSA),进行了系统评估。大多数肽模拟物显示出显着的广谱抗菌活性。AL-Iso-C 12(带有十二烷基部分的异亮氨酸衍生物)对金黄色葡萄球菌的MIC 为 2.5 μg/mL,对 MRSA 的MIC 为4 μg/mL,AL-Val-C 12(带有十二烷基部分的缬氨酸衍生物)对金黄色葡萄球菌的MIC 为1.67 μg/mL 抗大肠杆菌,8.3 μg/mL 抗 MRSA。AL-Val-C 12与 SGC 7901 细胞相比,对 L929 细胞显示出较低的细胞毒性,表明肽模拟物对肿瘤进行了杀