针对改善抗菌活性和生物稳定性的阿波丁NLS2同质化策略
Anu Kumari1, Mahavir Singh2, Ruchi Sharma1
1Department of Animal Biotechnology, College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Sciences (LUVAS), Hisar, Haryana, 125004, India.
Amino acids
|September 19, 2023
概括
研究人员探索了来自阿波丁核定位序列 (NLS2) 的抗微生物 (AMP). 分化增强了抗菌活性和生物稳定性,为开发新抗微生物抗耐药细菌提供了有前途的战略.
科学领域:
- 生物化学 生物化学
- 微生物学 微生物学
- 药物发现 药物发现 药物发现
背景情况:
- 抗生素耐药性需要新的抗菌剂.
- 抗微生物 (AMP) 是一个有希望的替代品.
- 阿波丁核定位序列 (NLS2) 衍生的类提供了潜在的.
研究的目的:
- 为了研究NLS2衍生的 (ANLP) 的抗菌活性.
- 评估NLS二分化对增强AMP属性的有效性.
- 评估二维AMP的生物稳定性和安全性.
主要方法:
- 合成ANLP及其同位体变体 (ANLP-K1,ANLP-K2) 的.
- 对大肠杆菌和沙门氏菌进行抗菌活性测试.
- 血清稳定性测试,Vero细胞的细胞毒性测试,染料透测试,泽塔电位分析和扫描电子显微镜.
主要成果:
- ANLP-K2 显示出强大的抗菌活性 (12μM MIC).
- 与线性ANLP相比,二甲基的生物稳定性显著改善.
- 模性AMP表现出膜相互作用,有效中和LPS和细菌细胞的电荷,并诱导无细胞毒性的孔形成.
结论:
- 阿波丁NLS2的氨酸支架二元化增强了抗菌功效和生物稳定性.
- 这一策略有效地中和了LPS,并为新的AMP设计提供了一个模板.
- 基于NLS的二元代表了打击抗生素耐药性的有希望的途径.
相关概念视频
01:16Transduction
38
Among the three main modes of HGT—transformation, conjugation, and transduction—transduction is unique in that it is mediated by bacteriophages, or bacterial viruses.Transduction occurs in two ways. Generalized transduction occurs during the lytic cycle of a bacteriophage infection. In this process, bacteriophages infect bacterial cells, replicate within them, and ultimately cause cell lysis, releasing newly assembled virions. Occasionally, random fragments of the bacterial genome...
38
01:31The Intrinsic Apoptotic Pathway
6.6K
Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
6.6K