Abstract
Background: Chronic inflammation may mediate risk of colorectal cancer (CRC); however, the association between circulating inflammatory markers and risk of CRC has been inconsistent. Methods: We prospectively evaluated the association of plasma C-reactive protein (CRP), interleukin-6 (IL-6), and the soluble tumour necrosis factor receptor 2 (sTNFR-2) with incident CRC among 274 cases and 532 matched controls nested in the Health Professionals Follow-up Study. Results: Multivariate relative risk (RR) of CRC comparing the extreme quartiles of plasma IL-6 was 1.54 (95% confidence interval (CI), 0.99-2.40; Ptrend =0.02). However, after excluding cases diagnosed within 2 years of blood draw, this association was not statistically significant (RR=1.26, 95% CI, 0.78-2.05; Ptrend =0.21). In analyses restricted to cases diagnosed at least 2 years after blood draw, the association of IL-6 with CRC appeared to differ by body mass index such that the significantly positive association was only present among lean individuals (Pinteraction=0. 03). We did not observe any significant association between CRP or sTNFR-2 and CRC. Conclusion: Plasma inflammatory markers are not generally associated with risk of CRC among men. However, the possibility that plasma IL-6 is associated with increased risk of CRC among lean men requires further investigation.
| Original language | English |
|---|---|
| Pages (from-to) | 1891-1898 |
| Number of pages | 8 |
| Journal | British Journal of Cancer |
| Volume | 108 |
| Issue number | 9 |
| DOIs | |
| State | Published - 14 May 2013 |
| Externally published | Yes |
Keywords
- Body mass index
- C-reactive protein
- Colorectal cancer
- Interleukin-6
- Soluble tumour necrosis factor receptor 2
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