期刊
CANCER CAUSES & CONTROL
卷 21, 期 1, 页码 77-82出版社
SPRINGER
DOI: 10.1007/s10552-009-9436-6
关键词
Ovarian cancer; Telomere length; Case-control study; Epidemiology
资金
- NIH [CA82838]
- National Cancer Institute
- Division of Cancer Epidemiology and Genetics
- Center for Cancer Research
- American Cancer Society [RSG-00-061-04-CCE]
- NATIONAL CANCER INSTITUTE [R01CA082838, ZIACP010190] Funding Source: NIH RePORTER
Telomeres are structures at chromosome ends that contribute to maintaining genomic integrity. Telomere shortening with repeated cell divisions may lead to genomic instability and carcinogenesis. Studies suggest that shorter telomeres in constitutional DNA are associated with bladder, breast, lung, and renal cancer. Ovarian cancer tissues also have shortened telomeres and increased telomerase activity, suggesting that telomere abnormalities may be related to ovarian cancer. We investigated leukocyte telomere length in 99 women with serous ovarian adenocarcinoma and 100 age-matched cancer-free controls enrolled in a population-based case-control study. Cases tended to have shorter telomeres than controls (P (wilcoxon) = 0.002). Compared to subjects with telomere lengths in the longest tertile, those in the middle and shortest tertiles showed respective age-adjusted odds ratios (95% confidence intervals) of 2.69 (1.23-5.88) and 3.39 (1.54-7.46) (P (trend) = 0.002). Strongest associations were found for subjects with poorly differentiated carcinomas (OR = 4.89, 95% CI 1.93-12.34). This study shows that short leukocyte telomeres are associated with serous ovarian adenocarcinoma. These findings should be confirmed in large, prospective studies.
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