高溶性聚烯的抗微生物和抗菌膜活性对抗耐美西林的金黄色葡萄球菌
Danillo Sales Rosa1, Samily Aquino de Sá Oliveira1, Renata de Faria Silva Souza1
1Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco 56300-000, Brazil.
Journal of applied microbiology
|March 19, 2024
概括
高溶性聚烯醇 (Hs-PPy) 显示出对抗美西林耐药黄金葡萄球菌 (MRSA) 的抗微生物和抗菌膜活性. Hs-PPy与西林协同作用,并抑制MRSA生物膜的形成,提供潜在的治疗应用.
科学领域:
- 材料科学 材料科学 材料科学
- 微生物学 微生物学
- 计算化学计算化学
背景情况:
- 甲素耐药黄金葡萄球菌 (MRSA) 由于其抗生素耐药性而构成重大威胁.
- 细菌生物膜有助于持续感染和治疗挑战.
- 排泄是细菌抗生素耐药性的关键机制.
研究的目的:
- 评估高溶性聚烯 (Hs-PPy) 对MRSA的抗微生物和抗菌膜疗效.
- 为了研究Hs-PPy与牛素结合的协同效应.
- 为了探索HS-PPy作为排泄抑制剂的in silico机制.
主要方法:
- 用苏微稀释和棋盘测试来确定抗菌活性和协同效应.
- 生物膜形成试验评估了Hs-PPy.的抗生物膜潜力.
- 在的分子对接被用来研究与排泄的相互作用.
主要成果:
- Hs-PPy在MRSA分离物 (62.5125μg/mL) 上表现出抗菌活性,在62.5μg/mL时表现出杀菌作用.
- 当Hs-PPy与牛素结合时,观察到一个协同效应.
- Hs-PPy干扰了MRSA生物膜的形成,但没有干扰成熟的生物膜.
- 在分析中,没有显示与EmrD排泄蛋白的相互作用.
结论:
- Hs-PPy对MRSA具有显著的抗微生物和抗菌膜特性.
- Hs-PPy显示了与西林的协同作用潜力,提高了其疗效.
- Hs-PPy作为MRSA生物膜形成的抑制剂,表明治疗效用.
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