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High Levels of C-Reactive Protein Are Associated with an Increased Risk of Ovarian Cancer: Results from the Ovarian Cancer Cohort Consortium
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2019 (English)In: Cancer Research, ISSN 0008-5472, E-ISSN 1538-7445, Vol. 79, no 20, p. 5442-5451Article in journal (Refereed) Published
Abstract [en]

Growing epidemiologic evidence supports chronic inflammation as a mechanism of ovarian carcinogenesis. An association between a circulating marker of inflammation, C-reactive protein (CRP), and ovarian cancer risk has been consistently observed, yet, potential heterogeneity of this association by tumor and patient characteristics has not been adequately explored. In this study, we pooled data from case-control studies nested within six cohorts in the Ovarian Cancer Cohort Consortium (OC3) to examine the association between CRP and epithelial ovarian cancer risk overall, by histologic subtype and by participant characteristics. CRP concentrations were measured from prediagnosis serum or plasma in 1,091 cases and 1,951 controls. Multivariable conditional logistic regression was used to estimate ORs and 95% confidence intervals (CI). When CRP was evaluated using tertiles, no associations with ovarian cancer risk were observed. A 67% increased ovarian cancer risk was found for women with CRP concentrations >10 mg/L compared with <1 mg/L (OR = 1.67; 95% CI = 1.12-2.48). A CRP concentration >10 mg/L was positively associated with risk of mucinous (OR = 9.67; 95% CI = 1.10-84.80) and endometrioid carcinoma (OR = 3.41; 95% CI = 1.07-10.92), and suggestively positive, although not statistically significant, for serous (OR = 1.43; 95% CI = 0.82-2.49) and clear cell carcinoma (OR = 2.05; 95% CI = 0.36-11.57; P-heterogeneity = 0.20). Heterogeneity was observed with oral contraceptive use (P-interaction = 0.03), where the increased risk was present only among ever users (OR = 3.24; 95% CI = 1.62-6.47). This study adds to the existing evidence that CRP plays a role in ovarian carcinogenesis and suggests that inflammation may be particularly implicated in the etiology of endometrioid and mucinous carcinoma. Significance: C-reactive protein is involved in ovarian carcinogenesis, and chronic inflammation may be particularly implicated in the etiology of mucinous and endometrioid carcinomas.

Place, publisher, year, edition, pages
American Association for Cancer Research , 2019. Vol. 79, no 20, p. 5442-5451
National Category
Cancer and Oncology
Identifiers
URN: urn:nbn:se:umu:diva-165361DOI: 10.1158/0008-5472.CAN-19-1554ISI: 000494427700028PubMedID: 31462430OAI: oai:DiVA.org:umu-165361DiVA, id: diva2:1372147
Funder
NIH (National Institute of Health)Swedish Cancer SocietySwedish Research CouncilRegion SkåneAvailable from: 2019-11-22 Created: 2019-11-22 Last updated: 2019-11-22Bibliographically approved

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Idahl, Annika

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Townsend, Mary K.Allen, Naomi E.Idahl, AnnikaZeleniuch-Jacquotte, Anne
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