菌体衍生的内素和脱聚酶对生物膜形成的沙门氏菌Typhimurium的联合抗菌作用
Junhwan Kim1, Jun Wang2, Juhee Ahn1,3
1Department of Biomedical Science, Kangwon National University, Chuncheon, Republic of Korea.
Biofouling
|October 5, 2023
概括
菌体衍生的内素 (LysPB32) 和脱聚合酶 (DpolP22) 显著降低了浮游生物和生物膜形式的沙门氏菌Typhimurium. 将这些酶与聚米辛B结合,提高了抗生素敏感性,并减少了细菌的交叉耐药性.
科学领域:
- 微生物学 微生物学
- 细菌学 细菌学是一门学科.
- 抗菌研究 抗菌研究
背景情况:
- 细菌感染,特别是涉及生物膜的细菌感染,在医疗保健和食品安全方面构成重大挑战.
- 菌体衍生酶为抗生素耐药细菌提供了一种新的方法.
研究的目的:
- 评价菌衍生的内素 (LysPB32) 和脱聚合酶 (DpolP22) 对沙门氏菌Typhimurium (STKCCM) 的抗菌疗效.
- 评估这些酶与多素B (PMB) 对浮游生物和生物膜STKCCM细胞的联合作用.
- 研究对细菌健康和对其他抗生素的交叉耐药性的影响.
主要方法:
- 在Salmonella Typhimurium的浮游生物和生物膜细胞上进行了抗菌活性测定.
- 这项研究使用了菌体衍生的内素 (LysPB32) 和脱聚合酶 (DpolP22),单独或与多素B (PMB) 结合.
- 最低抑制度 (MIC) 的比率被确定以评估抗生素敏感性和交叉耐药性的变化.
主要成果:
- LysPB32 和 LysPB32 + DpolP22 显著降低了STKCCM细胞数量,特别是在与PMB结合时.
- LysPB32 + DpolP22 的组合降低了细菌的相对适应性和对氨基醇,氨酸,氨酸和四环素的交叉耐药性.
- 当使用LysPB32 + DpolP22与PMB一起使用时,MICtrt/MICcon比率表明对多种抗生素的敏感性增加.
结论:
- 菌体衍生酶LysPB32和DpolP22对沙门氏菌Typhimurium表现出强大的抗菌活性.
- 这些酶与PMB等抗生素的结合是对抗细菌生物膜的有希望的策略.
- 这种方法可以提高抗生素的疗效,克服医疗和食品加工环境中的抗生素耐药性.
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