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卷膜巨细胞中的miRNA签名与香烟烟雾有关:评估和生物信息学分析

Davida Mirra¹, Renata Esposito¹, Giuseppe Spaziano¹

¹Department of Environmental Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", 81100 Caserta, Italy.

International journal of molecular sciences

|February 13, 2025

概括

香烟烟雾会改变肺细胞中的microRNA (miRNA) 表达,从而可能增加COPD的风险. 这些发现强调了巨细胞的表观遗传变化是吸烟相关肺部疾病的关键.

科学领域:

* 分子生物学 * 分子生物学
* 表观遗传学是一种表观遗传学.
* 呼吸系统医学呼吸系统医学

背景情况:

*香烟烟雾是导致COPD和NSCLC等呼吸道疾病的主要原因.
*CS诱导氧化应激,损害巨细胞功能,并改变肺部基因表达.
*微RNAs (miRNAs) 是基因表达的关键调节者,与疾病的发病有关.

研究的目的:

* 为了研究CS暴露如何调节初级膜巨细胞 (AMs) 中的特定miRNA表达.
* 确定与CS暴露相关的miRNA特征及其在吸烟相关肺部疾病中的潜在作用.
* 探索miRNAs,炎症和免疫调节之间的生物信息联系,以应对CS.

主要方法:

*从43名受试者 (COPD,NSCLC,吸烟者,非吸烟者) 的初级AM暴露于CS在体外.
*miRNA表达水平 (hsa-miR-34a-5p, 17-5p, 16-5p, 106a-5p, 223-5p, 20a-5p) 在CS暴露前后使用RT-PCR测量.
* 参与炎症和免疫反应的miRNA相关途径 (KEGG,PPI) 的生物信息分析.

主要成果:

*CS暴露在AM中诱导了不同的和常见的miRNA表达特征.
* 特定的miRNAs (hsa-miR-34a-5p, 17-5p, 106a-5p, 20a-5p) 在CS暴露后转向与COPD相关的水平.
*确定了调节免疫系统和AM功能相关的mRNA的CS-依赖的miRNA模式.

结论:

*CS暴露会改变AM的表观遗传模式,影响巨细胞的激活.
*在CS暴露的AM中识别的miRNA签名表明在肺部疾病发病和进展中发挥了作用.
*这些发现提供了有关吸烟相关呼吸道疾病的分子机制的见解.

关键词:

慢性慢性肺炎是一种慢性慢性肺炎,COPD是一种慢性肺炎.膜细胞巨细胞香烟的烟雾,就是烟雾.肺癌是一种肺癌.微RNAs 是一个微型RNA.

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