Reproductive factors, hormone use, estrogen receptor expression and risk of non-small-cell lung cancer in women

被引:122
作者
Schwartz, Ann G. [1 ]
Wenzlaff, Angela S.
Prysak, Geoffrey M.
Murphy, Valerie
Cote, Michele L.
Brooks, Sam C.
Skafar, Debra F.
Lonardo, Fulvio
机构
[1] Karmanos Canc Inst, Populat Studies & Prevent Program, Breast Canc Program, Detroit, MI 48201 USA
关键词
D O I
10.1200/JCO.2007.13.3975
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Purpose Estrogen receptor (ER) expression in lung tumors suggests that estrogens may play a role in the development of lung cancer. We evaluated the role of hormone-related factors in determining risk of non-small-cell lung cancer (NSCLC) in women. We also evaluated whether risk factors were differentially associated with cytoplasmic ER-alpha and/or nuclear ER-alpha expression-defined NSCLC in postmenopausal women. Patients and Methods Population-based participants included women aged 18 to 74 years diagnosed with NSCLC in metropolitan Detroit between November 1, 2001 and October 31, 2005. Population-based controls were identified through random digit dialing, matched to patient cases on race and 5-year age group. Interview data were analyzed for 488 patient cases (241 with tumor ER results) and 498 controls. Results Increased duration of hormone replacement therapy (HRT) use in quartiles was associated with decreased risk of NSCLC in postmenopausal women (odds ratio = 0.88; 95% CI, 0.78 to 1.00; P = .04), adjusting for age, race, pack-years, education, family history of lung cancer, current body mass index, years exposed to second-hand smoke in the workplace, and obstructive lung disease history. Among postmenopausal women, ever using HRT, increasing HRT duration of use in quartiles, and increasing quartiles of estrogen use were significant predictors of reduced risk of NSCLC characterized as ER-alpha and/or ER-beta positive. None of the hormone-related variables were associated with nuclear ER-alpha- or ER-beta-negative NSCLC. Conclusion These findings suggest that postmenopausal hormone exposures are associated with reduced risk of ER-alpha- and ER-beta-expressing NSCLC. Understanding tumor characteristics may direct development of targeted treatment for this disease.
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收藏
页码:5785 / 5792
页数:8
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