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需要两个人来跳探戈:使用达普米辛-菌素联合治疗来保持达普米辛对抗达普米辛耐药MRSA的疗效

Casey L Madison¹, Anja S J Steinert¹, Corrin E Luedeke¹

¹P3 Research Laboratory, Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio, USA.

Microbiology spectrum

|October 29, 2024

概括

在MRSA中达普托米辛耐药性与对细菌菌Sb-1的敏感性增加相关. 将达普托米辛与菌体结合起来,可以克服抗生素耐药性,并保留当前的治疗方法.

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:

达普托米辛 (DAP) 对于治疗多药耐药黄金葡萄球菌 (MRSA) 是至关重要的.
新兴的DAP耐药性需要新的治疗策略.
菌体治疗提供了一种有前途的方法来对抗抗生素耐药性.

研究的目的:

调查DAP耐药性和MRSA中对细菌菌体Sb-1的敏感性之间的关系.
评估DAP耐药菌株中菌体-抗生素组合 (PAC) 的协同潜力.
探索DAP单疗法和DAP菌体治疗对MRSA细胞壁形态学的影响.

主要方法:

对14种临床MRSA菌株的分析,包括同源的DAP敏感和DAP耐药对.
测量涂层的细菌效率 (EOP) 和斑块大小.
菌体-抗生素组合 (PAC) 国际象棋盘测试.
传输电子显微镜 (TEM) 的MRSA细胞壁.

主要成果:

抗DAP的MRSA菌株对菌体Sb-1 (更高的EOP和斑块大小) 显著增加了敏感性.
与敏感菌株相比,PAC检查板显示DAP耐药突变物中的对抗性降低.
在DAP单一治疗下,TEM在DAP敏感菌株中显示出显著更厚的细胞壁.

结论:

对细菌体Sb-1的敏感性增加伴随着MRSA中DAP耐药性的出现.
菌体-抗生素组合显示出对抗DAP耐药MRSA的协同活性潜力.
这一策略可能有助于保持现有的抗生素对具有挑战性的感染的疗效.

关键词:

黄金葡萄球菌黄金葡萄球菌抗生素耐药性抗生素耐药性细菌治疗是一种细菌治疗.

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