使用菌体对抗多药耐药性泌尿病原性大肠杆菌,增强抗生素协同作用,抑制生物膜
Md Shamsuzzaman1,2, Yoon-Jung Choi2, Shukho Kim1,2
1Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
概括
两种新型细菌菌体EC.W1-1和EC.W15-3在对抗抗药性大肠杆菌 (MDR E. coli) 方面表现有前途. 这些菌体是稳定的,安全的,有效地对抗耐药菌株,生物膜,并与抗生素结合.
科学领域:
- 微生物学 微生物学
- 病毒学 病毒学
- 基因组学就是基因组学.
背景情况:
- 多抗药性大肠杆菌 (MDR E. coli) 的增加构成了全球重大健康挑战.
- 菌体 (菌体) 正在成为针对抗生素耐药细菌的向生物控制剂.
研究的目的:
- 隔离和表征新型的对各种MDR大肠杆菌菌株有效的菌体.
- 评估这些菌体的安全性,稳定性和治疗潜力,单独或与抗生素结合.
主要方法:
- 临床菌体EC.W1-1和EC.W15-3.的分离和表征
- 评估菌体稳定性 (pH,温度),溶解活性和生长动力学.
- 对病毒性和抗生素耐药性基因进行基因组测序和分析.
- 在体外,血清和与抗生素结合的MDR大肠杆菌对菌体的疗效的评估;生物膜破坏试验.
主要成果:
- 两种菌体,EC.W1-1和EC.W15-3 (Straboviridae家族,Tequatrovirus属),被分离和鉴定了它们的特征.
- 菌体表现出广泛的稳定性 (pH2-10<80°C),强烈的化活性,短的潜伏期和中等的爆发大小.
- 基因组没有毒性和抗生素耐药性基因,这表明了有利的安全性.
- 结合的菌体抗生素治疗有效抑制了产生扩展光谱β-乳糖酶 (ESBL) 和耐卡巴胺的大肠杆菌 (CREC) 和破坏的生物膜.
结论:
- 菌体EC.W1-1和EC.W15-3显示出作为抗MDR大肠杆菌治疗剂的显著潜力.
- 它们的稳定性,安全性和对抗耐药菌株和生物膜的有效性为传统抗生素治疗提供了一个有希望的替代方案或辅助方案.
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