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The associations of anthropometric, behavioural and sociodemographic factors with circulating concentrations of IGF‐I, IGF‐II, IGFBP‐1, IGFBP‐2 and IGFBP‐3 in a pooled analysis of 16,024 men from 22 studies

2019; Wiley; Volume: 145; Issue: 12 Linguagem: Inglês

10.1002/ijc.32276

1097-0215

Eleanor L. Watts, Aurora Perez‐Cornago, Paul N. Appleby, Demetrius Albanes, Eva Ardanáz, Amanda Black, H. Bas Bueno‐de‐Mesquita, June M. Chan, Chu Chen, S. A. Paul Chubb, Michael B. Cook, Mélanie Deschasaux, Jenny Donovan, Dallas R. English, Leon Flicker, Neal D. Freedman, Pilar Galán, Graham G. Giles, Edward Giovannucci, Marc J. Gunter, Laurel A. Habel, Christel Häggström, Christopher A. Haiman, Freddie C. Hamdy, Serge Herçberg, Jeff M.P. Holly, Jiaqi Huang, Wen‐Yi Huang, Mattias Johansson, Rudolf Kaaks, Tatsuhiko Kubo, J. Athene Lane, Tracy M. Layne, Loïc Le Marchand, Richard M. Martin, E. Jeffrey Metter, Kazuya Mikami, Roger L. Milne, H.A. Morris, Lorelei A. Mucci, David E. Neal, Marian L. Neuhouser, Steven E. Oliver, Kim Overvad, Kotaro Ozasa, Valeria Pala, Claire H. Pernar, Michaël Pollak, M.-A. Rowlands, Catherine Schaefer, Jeannette M. Schenk, Pär Stattin, Akiko Tamakoshi, Elin Thysell, Mathilde Touvier, Antonia Trichopoulou, Konstantinos K. Tsilidis, Stephen K. Van Den Eeden, Stephanie J. Weinstein, Lynne R. Wilkens, Bu B. Yeap, Timothy J. Key, Naomi E. Allen, Ruth C. Travis,

Metabolism, Diabetes, and Cancer

Insulin-like growth factors (IGFs) and insulin-like growth factor binding proteins (IGFBPs) have been implicated in the aetiology of several cancers. To better understand whether anthropometric, behavioural and sociodemographic factors may play a role in cancer risk via IGF signalling, we examined the cross-sectional associations of these exposures with circulating concentrations of IGFs (IGF-I and IGF-II) and IGFBPs (IGFBP-1, IGFBP-2 and IGFBP-3). The Endogenous Hormones, Nutritional Biomarkers and Prostate Cancer Collaborative Group dataset includes individual participant data from 16,024 male controls (i.e. without prostate cancer) aged 22-89 years from 22 prospective studies. Geometric means of protein concentrations were estimated using analysis of variance, adjusted for relevant covariates. Older age was associated with higher concentrations of IGFBP-1 and IGFBP-2 and lower concentrations of IGF-I, IGF-II and IGFBP-3. Higher body mass index was associated with lower concentrations of IGFBP-1 and IGFBP-2. Taller height was associated with higher concentrations of IGF-I and IGFBP-3 and lower concentrations of IGFBP-1. Smokers had higher concentrations of IGFBP-1 and IGFBP-2 and lower concentrations of IGFBP-3 than nonsmokers. Higher alcohol consumption was associated with higher concentrations of IGF-II and lower concentrations of IGF-I and IGFBP-2. African Americans had lower concentrations of IGF-II, IGFBP-1, IGFBP-2 and IGFBP-3 and Hispanics had lower IGF-I, IGF-II and IGFBP-3 than non-Hispanic whites. These findings indicate that a range of anthropometric, behavioural and sociodemographic factors are associated with circulating concentrations of IGFs and IGFBPs in men, which will lead to a greater understanding of the mechanisms through which these factors influence cancer risk.