Association of interleukin-10 gene variation with breast cancer prognosis

• Published in: Breast cancer research and treatment 2010-02, Vol.119 (3), p.701-705
• Main Authors: Gerger, Armin, Renner, Wilfried, Langsenlehner, Tanja, Hofmann, Günter, Knechtel, Gudrun, Szkandera, Joanna, Samonigg, Hellmut, Krippl, Peter, Langsenlehner, Uwe
• Format: Article
• Language: English
• Subjects: Aged; Aged, 80 and over; Analysis; Apoptosis; Biological and medical sciences; Breast cancer; Breast Neoplasms - genetics; Breast Neoplasms - mortality; Breast Neoplasms - pathology; Cancer; Cancer research; Cancer therapies; Cytokines; Development and progression; Disease-Free Survival; DNA; Epidemiology; Estrogen; Female; Folic acid; Genes; Genetic aspects; Genotype; Gynecology. Andrology. Obstetrics; Health aspects; History, 16th Century; Humans; Inflammation; Interleukin-10 - genetics; Interleukins; Kaplan-Meier Estimate; Mammary gland diseases; Medical prognosis; Medical sciences; Medicine; Medicine & Public Health; Middle Aged; Neoplasm Staging; Oncology; Polymorphism; Polymorphism, Single Nucleotide; Progesterone; Prognosis; Proportional Hazards Models; Receptors, Estrogen - biosynthesis; Receptors, Estrogen - genetics; Receptors, Progesterone - biosynthesis; Receptors, Progesterone - genetics; Tumors
• ISSN: 0167-6806; 1573-7217
• DOI: 10.1007/s10549-009-0417-y

Genetic polymorphisms are responsible for inter-individual variation and diversity and have been recently considered as the main genetic elements involved in the development and progression of cancer. We examined associations between common germline genetic variants in 7 genes involved in folate metabolism, cell proliferation and apoptosis, prostaglandin synthesis, detoxification of compounds and inflammation, and disease-free survival among women diagnosed with invasive breast cancer. DNA from up to 432 women was genotyped for 8 polymorphisms. The genotypes of each polymorphism were tested for association with disease-free survival using univariate and multivariate Cox regression analysis. The model was adjusted for known breast cancer prognostic factors. The rare allele of the IL-10 592C>A polymorphism was significantly associated with reduced disease-free survival ( P  = 0.018, risk ratio of recurrence (RR) = 1.45, 95% confidence interval (CI) = 1.06–1.98), which was not attenuated after adjusting for age at diagnosis, tumor size, lymph node status, clinical stage, histological grade, estrogen receptor status, progesterone receptor status, and treatment modalities ( P  = 0.019, RR = 1.48, 95% CI = 1.066–2.044). No association was found between MTHFR 677C>T, TGFB1 29T>C, FASLG 844C>T, FAS 1377G>A, FAS 670A>G, PTGS2 8473T>C and SULT1A1 638G>A polymorphisms and disease-free survival. Our data suggest that the rare allele of IL-10 592C>A may be a potential prognostic marker in breast cancer for disease-free survival.