揭示肺癌诊断循环微RNAs的起源和功能
Tommaso Colangelo1,2, Francesco Mazzarelli1, Roberto Cuttano1
1Unit of Cancer Biomarkers, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy.
British journal of cancer
|April 4, 2025
概括
这项研究揭示了肺癌中循环的microRNAs (c-miRs) 来自瘤细胞和微环境. 在肺癌的进展和免疫反应中,MiR-223-3p起着关键作用.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物标志物 生物标志物
背景情况:
- 循环微RNAs (c-miRs) 是早期肺癌检测的有希望的生物标志物.
- c-miRs的确切起源和生物功能在很大程度上是未知的.
研究的目的:
- 调查13c-miRs签名的起源,用于在高风险人群中检测无症状肺癌.
- 探索特定c-miRs对肺癌表型和免疫系统的功能影响.
主要方法:
- 对肺癌和造血细胞系中的miRNA表达的分析 (N=252).
- 从接受肺癌查的高风险个体 (N=975) 的血清样本中分析c-miRs.
- 在瘤组织,血清和细胞系中检查miR-29a-3p和miR-223-3p的表达.
- 调节c-miR表达的功能研究,以评估对肺癌转录组和表型的影响.
主要成果:
- 确定了13 c-miRs特征的混合起源,其中来自瘤细胞和瘤微环境 (TME) 的贡献.
- 循环中的miR-29a-3p和miR-223-3p分别来自肺癌上皮细胞和免疫细胞.
- 发现miR-223-3p促进了肺癌的入侵,迁移和炎症.
结论:
- 肺癌c-miRs来自瘤上皮细胞和树皮细胞组成部分.
- miR-223-3p在肺癌病原和免疫调节方面具有重要和多方面的作用.
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