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Interaction of insulin-like growth factor-I and insulin resistance-related genetic variants with lifestyle factors on postmenopausal breast cancer risk. Breast Cancer Res Treat 2017; 164:475-495. [PMID: 28478612 DOI: 10.1007/s10549-017-4272-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 04/29/2017] [Indexed: 12/31/2022]
Abstract
PURPOSE Genetic variants and traits in metabolic signaling pathways may interact with obesity, physical activity, and exogenous estrogen (E), influencing postmenopausal breast cancer risk, but these inter-related pathways are incompletely understood. METHODS We used 75 single-nucleotide polymorphisms (SNPs) in genes related to insulin-like growth factor-I (IGF-I)/insulin resistance (IR) traits and signaling pathways, and data from 1003 postmenopausal women in Women's Health Initiative Observation ancillary studies. Stratifying via obesity and lifestyle modifiers, we assessed the role of IGF-I/IR traits (fasting IGF-I, IGF-binding protein 3, insulin, glucose, and homeostatic model assessment-insulin resistance) in breast cancer risk as a mediator or influencing factor. RESULTS Seven SNPs in IGF-I and INS genes were associated with breast cancer risk. These associations differed between non-obese/active and obese/inactive women and between exogenous E non-users and users. The mediation effects of IGF-I/IR traits on the relationship between these SNPs and cancer differed between strata, but only roughly 35% of the cancer risk due to the SNPs was mediated by traits. Similarly, carriers of 20 SNPs in PIK3R1, AKT1/2, and MAPK1 genes (signaling pathways-genetic variants) had different associations with breast cancer between strata, and the proportion of the SNP-cancer relationship explained by traits varied 45-50% between the strata. CONCLUSIONS Our findings suggest that IGF-I/IR genetic variants interact with obesity and lifestyle factors, altering cancer risk partially through pathways other than IGF-I/IR traits. Unraveling gene-phenotype-lifestyle interactions will provide data on potential genetic targets in clinical trials for cancer prevention and intervention strategies to reduce breast cancer risk.
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Costa-Silva DR, Barros-Oliveira MDAC, Borges RS, Tavares CB, Borges US, Alves-Ribeiro FA, Silva VC, Silva BBDA. Insulin-like Growth Factor 1 gene polymorphism and breast cancer risk. AN ACAD BRAS CIENC 2016; 88:2349-2356. [PMID: 27925035 DOI: 10.1590/0001-3765201620160169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 08/23/2016] [Indexed: 11/22/2022] Open
Abstract
Insulin-like Growth Factor-1 (IGF-1) gene polymorphism has been associated with an increased risk for breast cancer. IGF-1 is a key regulator of proliferation, cell differentiation and apoptosis. It has important mitogenic and anti-apoptotic activities in normal cells and in breast cancer cells, acting synergistically with estrogen to increase neoplastic cell proliferation. This review aims to present the recent finds of IGF-1 gene polymorphism and its relationship with the risk of breast cancer through following the polymorphic dinucleotide repeat cytosine-adenine (CA) and single nucleotide polymorphisms (SNPs) by searching in the PubMed database publications focused studies published from 2010 to 2015 related to IGF-1 gene polymorphism and breast cancer risk. A growing number of studies support an association between IGF-1 gene polymorphism and breast cancer risk with conflicting results, nevertheless elucidation of the patterns of IGF-1 gene expression may permit characterization of women at high-risk for breast cancer, as well as the development of strategies for early diagnosis and efficient treatment against the disease.
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Affiliation(s)
- Danylo R Costa-Silva
- Programa de Pós-Graduação em Ciências e Saúde, Universidade Federal do Piauí, Av. Frei Serafim, 2280, Centro, 64001-020 Teresina, PI, Brazil
| | - Maria DA Conceição Barros-Oliveira
- Programa de Pós-Graduação em Ciências e Saúde, Universidade Federal do Piauí, Av. Frei Serafim, 2280, Centro, 64001-020 Teresina, PI, Brazil
| | - Rafael S Borges
- Setor de Mastologia do Hospital Getulio Vargas, Universidade Federal do Piauí, Av. Frei Serafim, 2352, Centro, 64001-020 Teresina, PI, Brazil
| | - Cléciton B Tavares
- Programa de Pós-Graduação em Ciências e Saúde, Universidade Federal do Piauí, Av. Frei Serafim, 2280, Centro, 64001-020 Teresina, PI, Brazil
| | - Umbelina S Borges
- Programa de Pós-Graduação em Ciências e Saúde, Universidade Federal do Piauí, Av. Frei Serafim, 2280, Centro, 64001-020 Teresina, PI, Brazil
| | - Francisco A Alves-Ribeiro
- Setor de Mastologia do Hospital Getulio Vargas, Universidade Federal do Piauí, Av. Frei Serafim, 2352, Centro, 64001-020 Teresina, PI, Brazil
| | - Vladimir C Silva
- Serviço de Biologia Molecular, Hospital Natan Portella, Universidade Federal do Piauí, Rua Governador Raimundo Artur de Vasconcelos, 151, Centro/Sul, 64001-450 Teresina, PI, Brazil
| | - Benedito B DA Silva
- Programa de Pós-Graduação em Ciências e Saúde, Universidade Federal do Piauí, Av. Frei Serafim, 2280, Centro, 64001-020 Teresina, PI, Brazil.,Setor de Mastologia do Hospital Getulio Vargas, Universidade Federal do Piauí, Av. Frei Serafim, 2352, Centro, 64001-020 Teresina, PI, Brazil
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Christopoulos PF, Msaouel P, Koutsilieris M. The role of the insulin-like growth factor-1 system in breast cancer. Mol Cancer 2015; 14:43. [PMID: 25743390 PMCID: PMC4335664 DOI: 10.1186/s12943-015-0291-7] [Citation(s) in RCA: 257] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 01/07/2015] [Indexed: 02/06/2023] Open
Abstract
IGF-1 is a potent mitogen of major importance in the mammary gland. IGF-1 binding to the cognate receptor, IGF-1R, triggers a signaling cascade leading to proliferative and anti-apoptotic events. Although many of the relevant molecular pathways and intracellular cascades remain to be elucidated, a growing body of evidence points to the important role of the IGF-1 system in breast cancer development, progression and metastasis. IGF-1 is a point of convergence for major signaling pathways implicated in breast cancer growth. In this review, we provide an overview and concise update on the function and regulation of IGF-1 as well as the role it plays in breast malignancies.
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Affiliation(s)
- Panagiotis F Christopoulos
- Department of Experimental Physiology, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias Street, 11527 Goudi, Athens, Greece.
| | - Pavlos Msaouel
- Department of Internal Medicine, Jacobi Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA.
| | - Michael Koutsilieris
- Department of Experimental Physiology, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias Street, 11527 Goudi, Athens, Greece.
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He GH, Lu J, Shi PP, Xia W, Yin SJ, Jin TB, Chen DD, Xu GL. Polymorphisms of human histamine receptor H4 gene are associated with breast cancer in Chinese Han population. Gene 2013; 519:260-5. [PMID: 23481304 DOI: 10.1016/j.gene.2013.02.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2012] [Accepted: 02/11/2013] [Indexed: 12/21/2022]
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