Plasma C-Reactive Protein and Risk of Cancer: A Prospective Study from Greece
- Dimitrios Trichopoulos1,
- Theodora Psaltopoulou2,
- Philippos Orfanos2,
- Antonia Trichopoulou2 and
- Paolo Boffetta3
- 1Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts; 2Department of Hygiene and Epidemiology, University of Athens Medical School, Athens, Greece; and 3IARC, Lyon, France
- Requests for reprints:
Paolo Boffetta, Unit of Environmental Cancer Epidemiology, IARC, 150 cours Albert Thomas, 69008 Lyon, France. Phone: 33-47273-8554; Fax: 33-47273-8320. E-mail: boffetta{at}iarc.fr
Abstract
Background: Inflammation is an important component of carcinogenesis but little research has been conducted on whether inflammation markers can be predictive of cancer risk in humans.
Methods: We analyzed C-reactive protein (CRP), a marker of inflammation, in plasma samples of 496 cases of cancer and 996 controls selected among participants in a prospective study from Greece.
Results: Plasma CRP level was higher in cancer cases than controls (odds ratio for increase in CRP level of 3.2 mg/L, 1.20; 95% confidence interval, 1.10-1.32): The corresponding odds ratio after exclusion of the first year of follow-up and of individuals with CRP level above 20 mg/L was 1.32 (95% confidence interval, 1.15-1.52). Although based on small number of cases, the association between elevated plasma CRP level and risk was stronger for cancers of the liver, lung, skin, kidney, and bladder, as well as for lymphoma and leukemia than for other neoplasms.
Conclusions: Our results confirm the important role of inflammation in human cancer and suggest that plasma CRP level is a potential marker of increased cancer risk. (Cancer Epidemiol Biomarkers Prev 2006;15(2):381–4)
Footnotes
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Grant support: Europe against Cancer Program of the European Commission, the Greek Ministries of Health and Education, and an unrestricted grant to the University of Athens in honor of “Vasilios and Nafsika Tricha”.
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The costs of publication of this article were defrayed in part by the payment of page charges. This article must therefore be hereby marked advertisement in accordance with 18 U.S.C. Section 1734 solely to indicate this fact.
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- Accepted December 21, 2005.
- Received August 16, 2005.
- Revision received November 24, 2005.
