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Ashlan J Kunz Coyne¹, Kyle Stamper¹, Callan Bleick¹

¹Anti-Infective Research Laboratory, Department of Pharmacy Practice, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, Michigan, USA.

Microbiology spectrum

|February 27, 2024

概括

菌体-抗生素组合 (PAC) 对MRSA生物膜具有显著的杀菌活性. 结合达普素 (DAP),塞法托林 (CPT) 和特定的菌体尾酒,有效地减少了生物膜模型中的MRSA,而不会增加耐药性.

科学领域:

微生物学微生物学
传染性疾病传染性疾病
抗微生物耐药性抗微生物耐药性

背景情况:

由甲素耐药黄金葡萄球菌 (MRSA) 引起的生物膜相关感染是一个重大的临床挑战.
菌体-抗生素组合 (PACs) 显示出治疗这些感染的希望,这是由于证明了体外抗生素片的疗效.

研究的目的:

评估PACs对MRSA生物膜的协同和杀菌活性.
在生物片模型中评估达普素 (DAP) 和素 (CPT) 结合特定菌体对DAP敏感和DAP不敏感的MRSA菌株的疗效.

主要方法:

修改的棋盘和24小时的时间杀死试验被使用.
人性化模拟的DAP和CPT剂量与细菌菌体 (Intesti13,Sb-1,Romulus) 结合使用.
在168小时的生物膜反应器模型中对MRSA D712 (DNS VISA) 和MRSA 8014 (DS) 进行了测试.

主要成果:

DAP,CPT和2法尾酒 (Intesti13 + Sb-1) 或3法尾酒 (Intesti13 + Sb-1 + Romulus) 的组合显示出协同的杀菌活性.
在168小时后观察到显著的细菌减少 (P<0.001),检测到的细菌最小.
没有观察到抗生素最小生物膜抑制度 (MBIC) 或完全菌体耐药性的显著变化.

结论:

与特定的菌体尾酒相结合的DAP + CPT对MRSA生物膜具有强大的杀菌效果.
这种方法保持了细菌对抗生素和菌体的敏感性.
需要对不同菌株和治疗持续时间进行进一步的研究,以推进临床应用.

关键词:

在MRSA中,MRSA可能是MRSA.这是一种细菌协同作用.它具有杀菌活性,具有杀菌活性.细菌菌体是一种菌体.生物膜是一种生物膜.这就是Ceftaroline的意义.达普米辛是一种菌素.在体外模型模型中的体外模型.医疗器械感染医疗器械感染菌体 - 抗生素组合

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