RT Journal Article
T1 Pre-diagnosis insulin-like growth factor-I and risk of epithelial invasive ovarian cancer by histological subtypes: A collaborative re-analysis from the Ovarian Cancer Cohort Consortium.
A1 Ose, Jennifer
A1 Schock, Helena
A1 Poole, Elizabeth M
A1 Lehtinen, Matti
A1 Visvanathan, Kala
A1 Helzlsouer, Kathy
A1 Buring, Julie E
A1 Lee, I-Min
A1 Tjønneland, Anne
A1 Boutron-Ruault, Marie-Christine
A1 Trichopoulou, Antonia
A1 Mattiello, Amalia
A1 Onland-Moret, N Charlotte
A1 Weiderpass, Elisabete
A1 Sanchez-Perez, Maria-Jose
A1 Idahl, Annika
A1 Travis, Ruth C
A1 Rinaldi, Sabina
A1 Merritt, Melissa A
A1 Wentzensen, Nicolas
A1 Tworoger, Shelley S
A1 Kaaks, Rudolf
A1 Fortner, Renée T
K1 Developmental pathways
K1 Epithelial ovarian cancer
K1 Histological subtypes
K1 IGF-I
AB Biologic evidence suggests that the Insulin-like growth factor (IGF)-family may be involved in the etiology of epithelial invasive ovarian cancer (EOC). However, prospective studies investigating the role of IGF-I in ovarian carcinogenesis have yielded conflicting results. We pooled and harmonized data from 6 case-control studies nested within the Ovarian Cancer Cohort Consortium to investigate the association between pre-diagnosis IGF-I concentrations and subsequent risk of EOC. We evaluated IGF-I concentrations and risk of EOC overall and by tumor subtype (defined by histology, grade, stage) in 1,270 cases and 2,907 matched controls. Multivariable conditional logistic regression models were used to calculate odds ratios (OR) and 95% confidence intervals (CI). Doubling of IGF-I concentration was associated with significantly lower risk of overall EOC [ORlog2 = 0.82; CI 0.72-0.93]. We observed no heterogeneity by tumor characteristics (e.g., histology, p het = 0.62), menopausal status at blood collection (p het = 0.79), or age at diagnosis (p het = 0.60). These results suggest that IGF-I concentrations are inversely associated with EOC risk, independent of histological phenotype. Future prospective research should consider potential mechanisms for this association, including, considering other members of the IGF-family to better characterize the role of IGF-signaling in the etiology of EOC.
YR 2017
FD 2017-02-16
LK http://hdl.handle.net/10668/10868
UL http://hdl.handle.net/10668/10868
LA en
DS RISalud
RD Apr 10, 2025