线粒体DNA拷贝数和肺癌:一个系统的审查和元分析
Manuela Chiavarini1, Jacopo Dolcini2, Giorgio Firmani2
1Department of Health Sciences, University of Florence, Viale GB Morgagni 48, 50134 Florence, Italy.
International journal of molecular sciences
|July 29, 2025
概括
血液或唾液中的线粒体DNA拷贝数 (mtDNAcn) 似乎不是肺癌 (LC) 的重要风险标志物. 需要进一步的研究来澄清 mtDNAcn 和 LC 发育之间的关系.
科学领域:
- 遗传学 是一个遗传学.
- 在瘤学瘤学.
- 线粒体生物学 线粒体生物学
背景情况:
- 肺癌 (LC) 仍然是全球癌症死亡的主要原因.
- 线粒体及其DNA拷贝数 (mtDNAcn) 越来越多地被认为是它们在细胞过程和疾病中的作用.
- 需要进一步调查mtDNAcn作为LC风险的生物标志物的潜力.
研究的目的:
- 对mtDNAcn和LC风险之间的关联进行系统审查和元分析现有证据.
- 提供血液和唾液和肺癌中mtDNAcn之间的关系的综合估计.
- 评估mtDNAcn在LC预防中的作用.
主要方法:
- 在PubMed,Web of Science和Scopus数据库中进行了全面的文献搜索,截至2024年2月.
- 研究是根据PRISMA和MOOSE指南进行选择的,涉及使用随机效应模型进行元分析.
- 使用已知的统计方法 (Cochran的Q,I2,Begg的,Egger的测试) 评估了异质性和出版偏差.
主要成果:
- 与3748名参与者的5项研究符合符合资格标准,测量血液或唾液中的mtDNAcn.
- 综合分析显示,mtDNA拷贝数和肺癌风险之间没有显著的关联 (OR = 0.94;95% CI:0.49-1.78).
- 由于研究数量有限,不同研究设计中没有观察到显著的结果;没有发现显著的出版偏差.
结论:
- 目前的证据不支持mtDNA拷贝数作为肺癌的显著风险标志物.
- 由于研究数量有限,因此需要进一步研究以阐明mtDNAcn和LC之间的复杂关系.
- 未来的研究应该探索潜在的混因素和mtDNAcn在LC发展和预防中的作用.
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