4.7 Article

The level of free-circulating mtDNA in patients with radon-induced lung cancer

期刊

ENVIRONMENTAL RESEARCH
卷 207, 期 -, 页码 -

出版社

ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.envres.2021.112215

关键词

Circulating cell-free mitochondrial DNA; Lung cancer; Biomarker; Radon

资金

  1. Ministry of Education and Science of the Republic of Kazakhstan [No-AP08856116]

向作者/读者索取更多资源

This study found that the level of cf mtDNA in radon-induced lung cancer patients was significantly higher than other study participants, and there was a significant difference in cf mtDNA levels in the blood plasma of healthy volunteers exposed and not exposed to high doses of radon. Overall, healthy volunteers living in areas with high radon levels had higher mtDNA copy numbers than lung cancer patients who were not exposed to high doses of radon.
Objective: According to the World Health Organization, radon is the second leading cause of lung cancer after smoking. Cell free circulating mitochondrial DNA (cf mtDNA) have been used not only as a biomarker of carcinogenesis but also as a biomarker of exposure to radiation, but nothing is known about changes in the level of cf mtDNA following radon exposure. Therefore, the purpose of this study was to estimate the cf mtDNA copy number as a biomarker of the response to radon exposure in lung cancer pathogenesis. Methods: 207 subjects were examined including 41 radon-exposed lung cancer patients, 40 lung cancer patients without radon exposure and 126 healthy controls exposed/not exposed to high level of radon. Total cell free circulating DNA from blood samples was extracted and used to detect cell free circulating mitochondrial DNA copy number by quantitative real-time polymerase chain reaction (qRT-PCR). Results: Our data indicate that the level of cf mtDNA in the radon-induced lung cancer patients was significantly higher than that of the other study participants. There was a significant difference in the level of cf mtDNA in the blood plasma of healthy volunteers exposed and not exposed to high doses of radon. Moreover, in healthy volunteers living in areas with high radon levels, the mtDNA copy number was higher than that in patients with lung cancer who were not exposed to high doses of radon. Conclusion: Our study provides evidence for a possible role of cf mtDNA as a promising biomarker of lung cancer induced by exposure to high dose of radon.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据