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一个简化,纳米孔兼容的5PSeq协议,用于快速表型抗微生物敏感性测试

Honglian Liu¹, Susanne Huch¹, Ryan Hull¹

¹SciLifeLab, Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 171 65 Solna, Sweden.

Cell reports methods

|March 13, 2026

概括

简化5PSeq (s5PSeq) 通过分析mRNA降解来提供快速的抗菌耐药性诊断,提供无需培养的分子表型. 这种方法可以快速,准确地识别耐药细菌,改善治疗指导.

科学领域:

分子生物学分子生物学
微生物学微生物学
基因组学就是基因组学.

背景情况:

抗菌素耐药性 (AMR) 是一个主要的公共卫生问题,需要快速诊断.
目前的抗微生物敏感性测试通常依赖于培养,这是耗时的.
准确的诊断对于有效的抗微生物治疗策略至关重要.

研究的目的:

引入简化的5PSeq (s5PSeq),一种简化协议,用于分析5'单酸化 (5'P) mRNA降解中间体.
建立s5PSeq作为一种用于细菌生长抑制的分子表型读数,绕过培养的需要.
为了证明s5PSeq对于快速AMR诊断的临床实用性.

主要方法:

分析5'单酸化 (5'P) mRNA降解中间体,以反映核糖体动态.
捕捉抗生素诱导的,特定于背景的核糖体滞后事件.
使用一种新的rRNA阻断策略和实时纳米孔测序.

主要成果:

s5PSeq将图书馆准备时间缩短到4小时以下.
该方法成功识别了耐红素和敏感的Clostridioides difficile临床分离物.
快速的AMR诊断只需要3000个纳米孔测序读数就能实现.

结论:

s5PSeq提供了一个快速的,独立于培养的AMR分子表型读数.
将s5PSeq与纳米孔测序相结合,显著提高了诊断速度和准确性.
这种方法为改善临床AMR诊断和指导治疗决策提供了一个有希望的工具.

关键词:

5PSeqeq 5PSeqeq 是一个很大的数字.5′P 同翻译的mRNA衰变.这是C. difficile.培训班:微生物学科普:分子生物学纳米孔测序的测序快速表型的AST是一种快速表型的AST.核糖体摊位是因为核糖体摊位.

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