期刊
LUNG CANCER
卷 88, 期 3, 页码 297-303出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.lungcan.2015.03.011
关键词
Lung cancer; Telomere length variation; Telomere length; Blood-based biomarker; Risk prediction; Telomere dysfunction
资金
- National Cancer Institute of the National Institutes of Health [R01CA132996]
- Susan G. Komen for the Cure [KG100283]
Objectives: In this report the associations between telomere length variation (TLV), mean telomere length in blood lymphocytes and lung cancer risk were examined. Materials and methods: The study design is case-control. Cases (N = 191) were patients newly diagnosed with histologically confirmed non-small cell lung cancer. Controls (N = 207) were healthy individuals recruited from the same counties as cases and matched to cases on age and gender. Telomere fluorescent in situ hybridization was used to measure telomere features using short-term cultured blood lymphocytes. Logistic regression was used to estimate the strength of association between telomere features and lung cancer risk. Results: Telomere length variation across all chromosomal ends was significantly associated with lung cancer risk; adjusted odds ratios 4.67 [95% confidence interval (CI): 1.46-14.9] and 0.46 (95% CI: 025-0.84) for younger (age <= 60) and older (age >60) individuals, respectively. TLV and mean telomere length jointly affected lung cancer risk: when comparing individuals with short telomere length and high TLV to those with long telomere length and low TLV, adjusted odd ratios were 8.21 (95% Cl: 1.71-39.5) and 0.33 (95% CI: 0.15-0.72) for younger and older individuals, respectively. Conclusions: TLV in blood lymphocytes is significantly associated with lung cancer risk and the associations were modulated by age. TLV in combination with mean telomere length might be useful in identifying high risk population for lung cancer computerized tomography screening. (C) 2015 Elsevier Ireland Ltd. All rights reserved.
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