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基于ddPCR的血EV-miRNA的分析,确定了结核病的非侵入性生物标志物小组

Zhuhua Wu¹, Jing Liang², Yuchuan Zhao¹

¹Center for Tuberculosis Control of Guangdong Province, Guangzhou, China.

European journal of medical research

|November 27, 2025

概括

早期发现结核病 (TB) 是至关重要的. 这项研究确定了细胞外囊泡微RNAs (EV-miRNAs) 作为诊断活跃结核病,无症状结核病和潜在结核病感染的有希望的非侵入性生物标志物.

科学领域:

生物化学生物化学
分子生物学分子生物学
免疫学免疫学免疫学

背景情况:

结核病 (TB) 仍然是全球主要的传染性死亡原因.
结核病的诊断不足对其持续传播作出了重大贡献.
识别早期发现结核病的非侵入性生物标志物对于有效的疾病控制至关重要.

研究的目的:

研究细胞外囊泡微RNAs (EV-miRNAs) 对于早期结核病检测的诊断潜力.
确定与活跃结核病,无症状结核病 (aTB) 和潜伏结核病感染 (LTBI) 相关的特定EV-miRNA配置文件.
建立一种新的EV-miRNA签名,用于结核病的分期和早期诊断.

主要方法:

从患有活跃结核病 (n=25),aTB (n=25),LTBI (n=25) 和健康对照组 (n=25) 的患者收集了血样本.
细胞外囊泡 (EVs) 用超离心法分离,并通过纳米粒子跟踪分析和免疫阻塞进行特征.
使用RNA测序进行了微RNA (miRNA) 分析,随后通过滴滴数字PCR (ddPCR) 验证.

主要成果:

鉴定了7种差异表达的miRNA,其中3种显示出显著差异 (折叠变化>2,P <0.05).
在结核病子组中,hsa-miR-451a的调节升高,而hsa-miR-1908-5p和hsa-miR-1268b的调节降低.
一个由三个miRNA组成的小组显示出高的诊断准确性 (AUC为0.970的活跃结核病与HCs,0.971的LTBI与HCs).
两种miRNA组合 (hsa-miR-451a和hsa-miR-1268b) 将aTB与HC区分开来,其AUC为0.880.

结论:

为结核病建立了一个新的EV-miRNA签名.
鉴定到的EV-miRNAs对于结核病的分期和早期检测具有显著的临床实用性.
这种方法为结核病诊断提供了一种有前途的非侵入性方法.

关键词:

生物标志物生物标志物诊断诊断诊断诊断诊断细胞外囊泡细胞外囊泡这就是米RNA.结核病是一种疾病.

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