Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

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Leibovici, D. et al.

Polymorphisms in inflammation genes and bladder cancer: from initiation to recurrence, progression, and survival.

PURPOSE: Since chronic inflammation contributes to tumorigenesis, we hypothesized that the risk and clinical outcome of bladder cancer (BC) might be modulated by genetic variations in inflammation genes. METHODS: Using the TaqMan method, we genotyped single nucleotide polymorphisms in interleukin (IL) -6 (-174 G-->C), IL-8 (-251 T-->A), tumor necrosis factor-alpha (TNF-alpha; -308 G-->A), and peroxisome proliferator-activated receptor gamma (PPARG; Pro12Ala), and determined their associations with BC initiation and clinical outcome. RESULTS: We found that the IL-6 variant genotype (C/C) was associated with an increased BC risk (OR, 1.77; 95% CI, 1.25 to 2.51). There were joint effects between the variant IL-6 genotypes and smoking status, and between the variant genotypes of IL-6 and other genes. To assess effect on recurrence, we grouped non-muscle-invasive BC patients according to intravesical Bacillus Calmette-Guerin (BCG) treatment status: no BCG, induction BCG (iBCG), and maintenance BCG (mBCG). In the Cox proportional hazards model, the variant IL-6 genotype was associated with an increased recurrence risk (hazard ratio [HR], 4.60; 95% CI, 1.24 to 17.09) in patients receiving mBCG. The variant PPARG genotype was associated with a reduced recurrence risk (HR, 0.41; 95% CI, 0.20 to 0.86) among untreated patients. In patients with non-muscle-invasive BC, the variant IL-6 genotype was associated with an increased progression risk (HR, 1.88; 95% CI, 0.80 to 4.11). In patients with invasive BC, variant IL-6 was associated with improved 5-year overall and disease-specific survival (HR, 0.43; 95% CI, 0.19 to 0.94 and HR, 0.39; 95% CI, 0.15 to 1.00, respectively). CONCLUSION: Inflammation gene polymorphisms are associated with modified BC risk, treatment response, and survival.[1]

References

Polymorphisms in inflammation genes and bladder cancer: from initiation to recurrence, progression, and survival. Leibovici, D., Grossman, H.B., Dinney, C.P., Millikan, R.E., Lerner, S., Wang, Y., Gu, J., Dong, Q., Wu, X. J. Clin. Oncol. (2005) [Pubmed]

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