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Baxter RC. Endocrine and cellular physiology and pathology of the insulin-like growth factor acid-labile subunit. Nat Rev Endocrinol 2024; 20:414-425. [PMID: 38514815 DOI: 10.1038/s41574-024-00970-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/26/2024] [Indexed: 03/23/2024]
Abstract
The acid-labile subunit (ALS) of the insulin-like growth factor (IGF) binding protein (IGFBP) complex, encoded in humans by IGFALS, has a vital role in regulating the endocrine transport and bioavailability of IGF-1 and IGF-2. Accordingly, ALS has a considerable influence on postnatal growth and metabolism. ALS is a leucine-rich glycoprotein that forms high-affinity ternary complexes with IGFBP-3 or IGFBP-5 when they are occupied by either IGF-1 or IGF-2. These complexes constitute a stable reservoir of circulating IGFs, blocking the potentially hypoglycaemic activity of unbound IGFs. ALS is primarily synthesized by hepatocytes and its expression is lower in non-hepatic tissues. ALS synthesis is strongly induced by growth hormone and suppressed by IL-1β, thus potentially serving as a marker of growth hormone secretion and/or activity and of inflammation. IGFALS mutations in humans and Igfals deletion in mice cause modest growth retardation and pubertal delay, accompanied by decreased osteogenesis and enhanced adipogenesis. In hepatocellular carcinoma, IGFALS is described as a tumour suppressor; however, its contribution to other cancers is not well delineated. This Review addresses the endocrine physiology and pathology of ALS, discusses the latest cell and proteomic studies that suggest emerging cellular roles for ALS and outlines its involvement in other disease states.
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Affiliation(s)
- Robert C Baxter
- University of Sydney, Kolling Institute, Royal North Shore Hospital, St Leonards, New South Wales, Australia.
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2
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Mammographic breast density and IGF-1 gene polymorphisms rs1520220, rs2946834 and rs6219 in Polish women. Contemp Oncol (Pozn) 2021; 25:191-197. [PMID: 34729039 PMCID: PMC8547182 DOI: 10.5114/wo.2021.109727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/13/2021] [Indexed: 11/24/2022] Open
Abstract
Aim of the study The aim of the study was to analyze three single nucleotide polymorphisms – rs1520220, rs2946834, rs6219 – of the IGF-1 gene in the context of breast mammographic density. Material and methods The research material included 202 samples of the peripheral blood of women with increased mammographic breast density and 238 samples of the epithelium from the oral mucosa of women without diagnosed pathological changes of the breast and with no family history of breast and/or ovarian cancer. The real-time polymerase chain reaction method was applied for analysis of polymorphisms. Results rs1520220 polymorphism was associated with increased mammographic density of the breasts. The presence of the CC genotype in the IGF-1 gene increased the risk of developing higher breast density visible in mammography by 2.43-fold. CC homozygotes (rs1520220) correlated with higher Breast Imaging-Reporting and Data System scale (3 vs. 4 and 5) (OR = 5.6; 95% CI: 1.82–16.3, p = 0.001). In the present study no relationship was detected between rs6219 and rs2946834 polymorphism and mammographic breast density. Conclusions The results suggest that the rs1520220 polymorphism of the IGF-1 gene plays an important role in the occurrence of increased mammographic breast density.
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+3179G/A Insulin-Like Growth Factor-1 Receptor Polymorphism: A Novel Susceptibility Contributor in Anti-Ro/SSA Positive Patients with Sjögren's Syndrome: Potential Clinical and Pathogenetic Implications. J Clin Med 2021; 10:jcm10173960. [PMID: 34501407 PMCID: PMC8432056 DOI: 10.3390/jcm10173960] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Alterations of the insulin-like growth factor (IGF) pathway along with genetic variations of the IGF1 receptor (IGF1R) gene have been linked to the development of systemic autoimmunity, possibly through apoptosis induction. This study aims to investigate whether genetic variations of the IGF1R contribute to Sjögren’s syndrome (SS) pathogenesis and explores potential functional implications. Methods: DNA extracted from whole peripheral blood derived from 277 primary SS patients, complicated or not by lymphoma, and 337 Healthy controls (HC) was genotyped for the rs2229765 IGF1R polymorphism using the RFLP-PCR assay. Gene expression of IGF1R and IGF1 isoforms, caspases 1, 4, and 5, and inflammasome components NLRP3, ASC, IL1β, IL18, IL33, IGFBP3, and IGFBP6 were quantitated by RT-PCR in total RNA extracted from minor salivary gland biopsies (MSGs) of 50 SS patients and 13 sicca controls (SCs). In addition, IGF1R immunohistochemical (IHC) expression was assessed in formalin-fixed, paraffin-embedded MSG tissue sections derived from 10 SS patients and 5 SCs. Results: The prevalence of the A/A genotype of the rs2229765 IGF1R polymorphism was significantly higher in the anti-Ro/SSA positive SS population compared to healthy controls (24.8% vs. 10.7%, p = 0.001). Moreover, IGF1Rs at both mRNA and protein levels were reduced in SS-derived MSGs compared to SCs and were negatively associated with caspase 1 transcripts. The latter were positively correlated with NLRP3, ASC, and IL1β at the salivary gland tissue level. IGF1R expression in peripheral blood was negatively correlated with ESR and IgG serum levels and positively correlated with urine-specific gravity values. Conclusions: The rs2229765 IGF1R variant confers increased susceptibility for seropositive primary SS. Dampened IGF1R mRNA and protein expression in salivary gland tissues could be related to increased apoptosis and subsequently to the activation of inflammasome pathways.
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4
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Single nucleotide polymorphisms of insulin-like growth factor gene and mammographic breast density. MENOPAUSE REVIEW 2021; 19:160-170. [PMID: 33488326 PMCID: PMC7812538 DOI: 10.5114/pm.2020.101945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/14/2020] [Indexed: 11/18/2022]
Abstract
Aim of the study To analyze six single nucleotide polymorphisms (SNPs): rs1520220, rs2945834, rs5747694, rs6214, rs6219, rs5742678. An attempt was made to assess the significance of the above IGF-1 gene polymorphisms as prognostic and predictive factors in Polish women with diagnosed increased breast mammographic density. Material and methods The study included women diagnosed with an increased breast mammographic density (n = 98), breast cancer (n = 135) and women as a control group (n = 60). The method used to detect polymorphisms in the IGF-1 gene was the analysis of single-stranded DNA conformation polymorphism (SSCP-PCR) and Sanger’s sequencing. Results In the case of rs1520220 polymorphism, the genotype CC was found to increase the risk of breast cancer (OR = 2.6 95% CI 1.01-6.5, p = 0.04). Analysis of the rs2945834 polymorphism revealed that the occurrence of the G allele reduced the risk of breast cancer, while the occurrence of the A allele increased the risk of disease almost twice (OR = 0.55 95% CI). Among women who are heterozygous in terms of rs5747694 polymorphism (TG), the risk of breast cancer is twice as high as in the control group. The SNPs in the study group did not correlate with mammographic breast density. Conclusions The results obtained in the course of the analysis indicate that polymorphisms rs1520220, rs2946834, rs5747694 gene IGF-1 are associated with the occurrence of breast cancer but not with increased mammographic density. Summing up, the association between the polymorphisms of IGF-1 and the risk of developing breast cancer is independent of mammographic density.
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5
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Yuan TA, Yourk V, Farhat A, Guo KL, Garcia A, Meyskens FL, Liu-Smith F. A Possible Link of Genetic Variations in ER/IGF1R Pathway and Risk of Melanoma. Int J Mol Sci 2020; 21:ijms21051776. [PMID: 32150843 PMCID: PMC7084478 DOI: 10.3390/ijms21051776] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/21/2020] [Accepted: 03/03/2020] [Indexed: 12/14/2022] Open
Abstract
The mechanism of gender disparity in cutaneous melanoma incidence remains unclear. Steroid hormones including estrogens have long been implicated in the course of melanoma, but the conclusion is controversial. Estrogen receptors (ERs) and insulin-like growth factor 1 receptor (IGF1R) show extensive crosstalk in cancer development, but how the ER/IGF1R network impacts melanoma is currently unclear. Here we studied the melanoma associations of selected SNPs from the ER/IGF1R network. Part of the International Genes, Environment, and Melanoma (GEM) cohort was used as a discovery set, and the Gene Environment Association Studies Initiative (GENEVA) dataset served as a validation set. Based on the associations with other malignant disease conditions, thirteen single nucleotide polymorphism (SNP) variants in ESR1, ESR2, IGF1, and IGF1R were selected for candidate gene association analyses. The rs1520220 in IGF1 and rs2229765 in IGF1R variants were significantly associated with melanoma risk in the GEM dataset after Benjamini-Hochberg multiple comparison correction, although they were not validated in the GENEVA set. The discrepancy may be caused by the multiple melanoma characteristics in the GEM patients. Further analysis of gender disparity was carried out for IGF1 and IGF1R SNPs in the GEM dataset. The GG phenotype in IGF1 rs1520220 (recessive model) presented an increased risk of melanoma (OR = 8.11, 95% CI: 2.20, 52.5, p = 0.006) in men but a significant opposite effect in women (OR = 0.15, 95% CI: 0.018, 0.86, p = 0.045). The AA genotype in IGF1R rs2229765 (recessive model) showed a significant protective effect in men (OR = 0.24, 95% CI: 0.07, 0.64, p = 0.008) and no effect in women. Results from the current study are warranted for further validation.
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Affiliation(s)
- Tze-An Yuan
- Program in Public Health, University of California Irvine, Irvine, CA 92697, USA; (T.-A.Y.); (F.L.M.)
| | - Vandy Yourk
- Department of Neurobiology and Behavior, School of Biological Sciences, University of California Irvine, Irvine, CA 92697, USA;
| | - Ali Farhat
- Department of Biomedical Engineering, The Henry Samueli School of Engineering, University of California Irvine, Irvine, CA 92697, USA;
| | - Katherine L. Guo
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, Los Angeles, CA 90024, USA;
| | - Angela Garcia
- Department of Medicine, School of Medicine, University of California Irvine, Irvine, CA 92697, USA;
| | - Frank L. Meyskens
- Program in Public Health, University of California Irvine, Irvine, CA 92697, USA; (T.-A.Y.); (F.L.M.)
- Department of Medicine, School of Medicine, University of California Irvine, Irvine, CA 92697, USA;
- Chao Family Comprehensive Cancer Center, Irvine, CA 92697, USA
| | - Feng Liu-Smith
- Department of Medicine, School of Medicine, University of California Irvine, Irvine, CA 92697, USA;
- Chao Family Comprehensive Cancer Center, Irvine, CA 92697, USA
- Department of Epidemiology, School of Medicine, University of California Irvine, Irvine, CA 92697, USA
- Correspondence: ; Tel.: +1-949-824-2778
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6
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Meyerhardt JA, Irwin ML, Jones LW, Zhang S, Campbell N, Brown JC, Pollak M, Sorrentino A, Cartmel B, Harrigan M, Tolaney SM, Winer E, Ng K, Abrams T, Fuchs CS, Sanft T, Douglas PS, Hu F, Ligibel JA. Randomized Phase II Trial of Exercise, Metformin, or Both on Metabolic Biomarkers in Colorectal and Breast Cancer Survivors. JNCI Cancer Spectr 2019; 4:pkz096. [PMID: 32090192 PMCID: PMC7025659 DOI: 10.1093/jncics/pkz096] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/19/2019] [Accepted: 11/18/2019] [Indexed: 12/11/2022] Open
Abstract
Background Observational data support inverse relationships between exercise or metformin use and disease outcomes in colorectal and breast cancer survivors, although the mechanisms underlying these associations are not well understood. Methods In a phase II trial, stage I–III colorectal and breast cancer survivors who completed standard therapy were randomly assigned to structured exercise or metformin or both or neither for 12 weeks. The primary outcome was change in fasting insulin levels; secondary outcomes included changes in other blood-based energetic biomarkers and anthropometric measurements. Analyses used linear mixed models. Results In total, 139 patients were randomly assigned; 91 (65%) completed follow-up assessments. Fasting insulin levels statistically significantly decreased in all three intervention arms (−2.47 μU/mL combination arm, −0.08 μU/mL exercise only, −1.16 μU/mL metformin only, + 2.79 μU/mL control arm). Compared with the control arm, all groups experienced statistically significant weight loss between baseline and 12 weeks (−1.8% combination arm, −0.22% exercise only, −1.0% metformin only, +1.55% control). The combination arm also experienced statistically significant improvements in the homeostatic model assessment for insulin resistance (−30.6% combination arm, +61.2% control) and leptin (−42.2% combination arm, −0.8% control), compared with the control arm. The interventions did not change insulin-like growth factor–1 or insulin-like growth factor binding protein–3 measurements as compared with the control arm. Tolerance to metformin limited compliance (approximately 50% of the participants took at least 75% of the planned dosages in both treatment arms). Conclusions The combination of exercise and metformin statistically significantly improved insulin and associated metabolic markers, as compared to the control arm, with potential greater effect than either exercise or metformin alone though power limited formal synergy testing. Larger efforts are warranted to determine if such a combined modality intervention can improve outcomes in colorectal and breast cancer survivors.
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Affiliation(s)
| | - Melinda L Irwin
- See the Notes section for the full list of authors' affiliations
| | - Lee W Jones
- See the Notes section for the full list of authors' affiliations
| | - Sui Zhang
- See the Notes section for the full list of authors' affiliations
| | - Nancy Campbell
- See the Notes section for the full list of authors' affiliations
| | - Justin C Brown
- See the Notes section for the full list of authors' affiliations
| | - Michael Pollak
- See the Notes section for the full list of authors' affiliations
| | | | - Brenda Cartmel
- See the Notes section for the full list of authors' affiliations
| | - Maura Harrigan
- See the Notes section for the full list of authors' affiliations
| | - Sara M Tolaney
- See the Notes section for the full list of authors' affiliations
| | - Eric Winer
- See the Notes section for the full list of authors' affiliations
| | - Kimmie Ng
- See the Notes section for the full list of authors' affiliations
| | - Thomas Abrams
- See the Notes section for the full list of authors' affiliations
| | - Charles S Fuchs
- See the Notes section for the full list of authors' affiliations
| | - Tara Sanft
- See the Notes section for the full list of authors' affiliations
| | - Pamela S Douglas
- See the Notes section for the full list of authors' affiliations
| | - Frank Hu
- See the Notes section for the full list of authors' affiliations
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7
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Kuang M, Tao X, Peng Y, Zhang W, Pan Y, Cheng L, Yuan C, Zhao Y, Mao H, Zhuge L, Zhou Z, Chen H, Sun Y. Proteomic analysis of plasma exosomes to differentiate malignant from benign pulmonary nodules. Clin Proteomics 2019; 16:5. [PMID: 30733650 PMCID: PMC6359787 DOI: 10.1186/s12014-019-9225-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 01/27/2019] [Indexed: 12/11/2022] Open
Abstract
Background It is difficult to distinguish benign pulmonary nodules (PNs) from malignant PNs by conventional examination. Therefore, novel biomarkers that can identify the nature of PNs are needed. Exosomes have recently been identified as an attractive alternative approach since tumor-specific molecules can be found in exosomes isolated from biological fluids. Methods Plasma exosomes were extracted via the exoEasy reagent method. The major proteins from plasma exosomes in patients with PNs were identified via labelfree analysis and screened for differentially expressed proteins. A GO classification analysis and KEGG pathway analysis were performed on plasma exosomal protein from patients with benign and malignant PNs. Results Western blot confirmed that protein expression of CD63 and CD9 could be detected in the exosome extract. Via a search of the human Uniprot database, 736 plasma exosome proteins from patients with PNs were detected using high-confidence peptides. There were 33 differentially expressed proteins in the benign and malignant PNs. Of these, 12 proteins were only expressed in the benign PNs group, while 9 proteins were only expressed in the malignant PNs group. We further obtained important information on signaling pathways and nodal proteins related to differential benign and malignant PNs via bioinformatic analysis methods such as GO, KEGG, and String. Conclusions This study provides a new perspective on the identification of novel detection strategies for benign and malignant PNs. We hope our findings can provide clues for the identification of benign and malignant PNs. Electronic supplementary material The online version of this article (10.1186/s12014-019-9225-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Muyu Kuang
- 1Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,3Huadong Hospital, Fudan University, Shanghai, China
| | - Xiaoting Tao
- 1Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yizhou Peng
- 1Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wenjing Zhang
- 4Shanghai Institute of Biochemistry and Cell Biology, Shanghai, China
| | - Yafang Pan
- 4Shanghai Institute of Biochemistry and Cell Biology, Shanghai, China
| | - Lei Cheng
- 5Cancer Institute, Collaborative Innovation Center for Cancer Medicine, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Chongze Yuan
- 1Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yue Zhao
- 1Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hengyu Mao
- 1Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lingdun Zhuge
- 1Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Zhenhua Zhou
- 6Department of Orthopaedic Oncology, Changzheng Hospital, Naval Military Medical University (The Second Military Medical University), Shanghai, China
| | - Haiquan Chen
- 1Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yihua Sun
- 1Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,2Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,7Present Address: Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, No. 270, Dongan Road, Shanghai, 200030 China
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8
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Tang W, Chen S, Liu J, Liu C, Wang Y, Kang M. Investigation of IGF1, IGF2BP2, and IGFBP3 variants with lymph node status and esophagogastric junction adenocarcinoma risk. J Cell Biochem 2018; 120:5510-5518. [PMID: 30335898 PMCID: PMC6587846 DOI: 10.1002/jcb.27834] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 09/14/2018] [Indexed: 12/12/2022]
Abstract
Esophagogastric junction adenocarcinoma (EGJA) may be associated with obesity and overweight. Thus, any variant in energy metabolism–related gene may influence the development of EGJA. In this study, we recruited 720 EGJA cases and 1541 noncancer controls. We selected IGF2BP2 rs4402960 G > T, rs1470579 A > C,
IGF1 rs5742612 A > G and
IGFBP3 rs3110697 G > A, rs2270628 C > T and rs6953668 G > A loci and assessed the relationship of these polymorphisms with lymph node status and susceptibility of EGJA. We found that
IGF2BP2 rs1470579 A > C and
IGFBP3 rs6953668 G > A polymorphisms were associated with the decreased risk of EGJA (
IGF2BP2 rs1470579: CC vs AA: adjusted odds ratio [OR] = 0.65, 95% confidence interval [CI] = 0.43‐0.98,
P = 0.041 and CC vs AA/AC: adjusted OR = 0.62, 95% CI = 0.41‐0.93,
P = 0.021 and
IGFBP3 rs6953668: GA vs GG: adjusted OR = 0.66, 95% CI = 0.47‐0.93,
P = 0.019 and GA/AA vs GG: adjusted OR = 0.68, 95% CI = 0.48‐0.95,
P = 0.026). However, we also found that
IGF1 rs5742612 A > G polymorphism increased the risk of LNM among patients with EGJA (GG vs AA: adjusted OR = 1.88, 95% CI = 1.02‐3.46,
P = 0.042 and GG vs AA/AG: adjusted OR = 1.92, 95% CI = 1.06‐3.47,
P = 0.032). This study suggests that
IGF2BP2 rs1470579 A > C and
IGFBP3 rs6953668 G > A polymorphisms may decrease genetic susceptibility to EGJA in eastern Chinese Han population. In addition, our findings also indicate that
IGF1 rs5742612 A > G polymorphism may increase the susceptibility of LNM among patients with EGJA.
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Affiliation(s)
- Weifeng Tang
- Department of Cardiothoracic Surgery, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Shuchen Chen
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, Fujian, China
| | - Jun Liu
- Central Lab, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Chao Liu
- Department of Cardiothoracic Surgery, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yafeng Wang
- Department of Cardiology, The People's Hospital of Xishuangbanna Dai Autonomous Prefecture, Jinghong, Yunnan, China
| | - Mingqiang Kang
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, Fujian, China
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9
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Chen S, Qiu H, Liu C, Wang Y, Tang W, Kang M. Relationship between IGF2BP2 and IGFBP3 polymorphisms and susceptibility to non-small-cell lung cancer: a case-control study in Eastern Chinese Han population. Cancer Manag Res 2018; 10:2965-2975. [PMID: 30214291 PMCID: PMC6118282 DOI: 10.2147/cmar.s169222] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background IGF2BP2 and IGFBP3 polymorphisms may be associated with cancer risk. Methods With an aim to determine the association of variations in IGF2BP2 and IGFBP3 genes with risk of non-small-cell lung cancer (NSCLC), IGF2BP2 rs1470579 A>C, rs4402960 G>T and IGFBP3 rs2270628 C>T, rs3110697 G>A, and rs6953668 G>A polymorphisms were selected and genotyped in 521 NSCLC patients and 1,030 controls. Results We found that there was no difference in IGF2BP2 and IGFBP3 genotype distribution among the NSCLC patients and controls. The stratified analyses suggested that IGF2BP2 rs1470579 A>C polymorphism decreased the risk of NSCLC in some subgroups (female subgroup: CC vs AA: adjusted P=0.032 and CC vs AC/AA: adjusted P=0.028; <60 years subgroup: CC vs AA: adjusted P=0.012 and CC vs AC/AA: adjusted P=0.013; and never drinking subgroup: CC vs AA: adjusted P=0.046 and CC vs AC/AA: adjusted P=0.031). The stratified analyses also found that IGF2BP2 rs4402960 G>T polymorphism decreased the risk of NSCLC in some subgroups (female subgroup: TT vs GG: adjusted P=0.031 and TT vs GT/GG: adjusted P=0.026; <60 subgroup: TT vs GG: adjusted P=0.037 and TT vs GT/GG: adjusted P=0.038; and never drinking subgroup: TT vs GT/GG: adjusted P=0.046). Haplotype analysis indicated Ars1470579Crs2270628Grs3110697Grs4402960Ars6953668 haplotype decreased susceptibility of NSCLC (P=0.007). Conclusion Our study suggests that IGF2BP2 rs1470579 A>C, rs4402960 G>T single-nucleotide polymorphisms are candidates for decreased susceptibility to NSCLC among female, <60 years, and never drinking subgroups. In the future, more case–control studies with functional analysis are needed to confirm these preliminary findings.
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Affiliation(s)
- Shuchen Chen
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China, ;
| | - Hao Qiu
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Chao Liu
- Department of Cardiothoracic Surgery, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Yafeng Wang
- Department of Cardiology, The People's Hospital of Xishuangbanna Dai Autonomous Prefecture, Jinghong, Yunnan Province, China
| | - Weifeng Tang
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China, ;
| | - Mingqiang Kang
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China, ; .,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian Province, China, .,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, Fujian Province, China,
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10
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Shi J, Aronson KJ, Grundy A, Kobayashi LC, Burstyn I, Schuetz JM, Lohrisch CA, SenGupta SK, Lai AS, Brooks-Wilson A, Spinelli JJ, Richardson H. Polymorphisms of Insulin-Like Growth Factor 1 Pathway Genes and Breast Cancer Risk. Front Oncol 2016; 6:136. [PMID: 27376028 PMCID: PMC4896919 DOI: 10.3389/fonc.2016.00136] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 05/23/2016] [Indexed: 12/18/2022] Open
Abstract
Genetic variants of insulin-like growth factor 1 (IGF1) pathway genes have been shown to be associated with breast density and IGF1 levels and, therefore, may also influence breast cancer risk via pro-survival signaling cascades. The aim of this study was to investigate associations between IGF1 pathway single nucleotide polymorphisms (SNPs) and breast cancer risk among European and East Asian women, and potential interactions with menopausal status and breast tumor subtype. Stratified analyses of 1,037 cases and 1,050 controls from a population-based case–control study were conducted to assess associations with breast cancer for 22 SNPs across 5 IGF1 pathway genes in European and East Asian women. Odds ratios were calculated using logistic regression in additive genetic models. Polytomous logistic regression was used to assess heterogeneity by breast tumor subtype. Two SNPs of the IGF1 gene (rs1019731 and rs12821878) were associated with breast cancer risk among European women. Four highly linked IGF1 SNPs (rs2288378, rs17727841, rs7136446, and rs7956547) were modified by menopausal status among East Asian women only and associated with postmenopausal breast cancers. The association between rs2288378 and breast cancer risk was also modified by breast tumor subtype among East Asian women. Several IGF1 polymorphisms were found to be associated with breast cancer risk and some of these associations were modified by menopausal status or breast tumor subtype. Such interactions should be considered when assessing the role of these variants in breast cancer etiology.
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Affiliation(s)
- Joy Shi
- Department of Public Health Sciences, Cancer Research Institute, Queen's University , Kingston, ON , Canada
| | - Kristan J Aronson
- Department of Public Health Sciences, Cancer Research Institute, Queen's University , Kingston, ON , Canada
| | - Anne Grundy
- Individuals and Families, Alberta Cancer Prevention Legacy Fund, Alberta Health Services , Calgary, AB , Canada
| | - Lindsay C Kobayashi
- Department of Epidemiology and Public Health, University College London , London , UK
| | - Igor Burstyn
- Department of Environmental and Occupational Health, Drexel University , Philadelphia, PA , USA
| | - Johanna M Schuetz
- Canada's Michael Smith Genome Sciences Centre, British Columbia Cancer Agency , Vancouver, BC , Canada
| | - Caroline A Lohrisch
- Department of Medical Oncology, British Columbia Cancer Agency , Vancouver, BC , Canada
| | - Sandip K SenGupta
- Department of Pathology and Molecular Medicine, Queen's University , Kingston, ON , Canada
| | - Agnes S Lai
- Department of Cancer Control Research, British Columbia Cancer Agency , Vancouver, BC , Canada
| | - Angela Brooks-Wilson
- Canada's Michael Smith Genome Sciences Centre, British Columbia Cancer Agency, Vancouver, BC, Canada; Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, Canada
| | - John J Spinelli
- Department of Cancer Control Research, British Columbia Cancer Agency, Vancouver, BC, Canada; School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Harriet Richardson
- Department of Public Health Sciences, Cancer Research Institute, Queen's University , Kingston, ON , Canada
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11
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Gately K, Forde L, Gray S, Morris D, Corvin A, Tewari P, O'Byrne K. Mutational analysis of the insulin-like growth factor 1 receptor tyrosine kinase domain in non-small cell lung cancer patients. Mol Clin Oncol 2015; 3:1073-1079. [PMID: 26623053 DOI: 10.3892/mco.2015.580] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 04/02/2015] [Indexed: 11/06/2022] Open
Abstract
The insulin-like growth factor 1 receptor (IGF1R) pathway plays an important role in the pathogenesis of non-small cell lung cancer (NSCLC) and also provides a mechanism of resistance to targeted therapies. IGF1R is therefore an ideal therapeutic target and several inhibitors have entered clinical trials. However, thus far the response to these inhibitors has been poor, highlighting the importance of predictive biomarkers to identify patient cohorts who will benefit from these targeted agents. It is well-documented that mutations and/or deletions in the epidermal growth factor receptor (EGFR) tyrosine kinase (TK) domain predict sensitivity of NSCLC patients to EGFR TK inhibitors. Single-nucleotide polymorphisms (SNPs) in the IGF pathway have been associated with disease, including breast and prostate cancer. The aim of the present study was to elucidate whether the IGF1R TK domain harbours SNPs, somatic mutations or deletions in NSCLC patients and correlates the mutation status to patient clinicopathological data and prognosis. Initially 100 NSCLC patients were screened for mutations/deletions in the IGF1R TK domain (exons 16-21) by sequencing analysis. Following the identification of SNP rs2229765, a further 98 NSCLC patients and 866 healthy disease-free control patients were genotyped using an SNP assay. The synonymous SNP (rs2229765) was the only aberrant base change identified in the IGF1R TK domain of 100 NSCLC patients initially analysed. SNP rs2229765 was detected in exon 16 and was found to have no significant association between IGF1R expression and survival. The GA genotype was identified in 53.5 and 49.4% of NSCLC patients and control individuals, respectively. No significant difference was found in the genotype (P=0.5487) or allele (P=0.9082) frequencies between the case and control group. The present findings indicate that in contrast to the EGFR TK domain, the IGF1R TK domain is not frequently mutated in NSCLC patients. The synonymous SNP (rs2229765) had no significant association between IGF1R expression and survival in the cohort of NSCLC patients.
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Affiliation(s)
- Kathy Gately
- Thoracic Oncology Research Group, Institute of Molecular Medicine, Trinity College Dublin, St. James's Hospital, Dublin, Republic of Ireland
| | - Lydia Forde
- Thoracic Oncology Research Group, Institute of Molecular Medicine, Trinity College Dublin, St. James's Hospital, Dublin, Republic of Ireland
| | - Stephen Gray
- Thoracic Oncology Research Group, Institute of Molecular Medicine, Trinity College Dublin, St. James's Hospital, Dublin, Republic of Ireland
| | - Derek Morris
- Neuropsychiatric Genetics Research Group, Institute of Molecular Medicine, Trinity College Dublin, St. James's Hospital, Dublin, Republic of Ireland
| | - Aidan Corvin
- Discipline of Biochemistry, National University of Ireland, Galway, Republic of Ireland
| | - Prerna Tewari
- Molecular Pathology Research Group, Trinity College, Coombe Womens and Infants University Hospital, Dublin, Republic of Ireland
| | - Kenneth O'Byrne
- Thoracic Oncology Research Group, Institute of Molecular Medicine, Trinity College Dublin, St. James's Hospital, Dublin, Republic of Ireland ; Medical Oncology, Princess Alexandra Hospital, Queensland University of Technology, Translational Research Institute, Brisbane, Queensland, Australia
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12
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Farabaugh SM, Boone DN, Lee AV. Role of IGF1R in Breast Cancer Subtypes, Stemness, and Lineage Differentiation. Front Endocrinol (Lausanne) 2015; 6:59. [PMID: 25964777 PMCID: PMC4408912 DOI: 10.3389/fendo.2015.00059] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 04/07/2015] [Indexed: 12/22/2022] Open
Abstract
Insulin-like growth factor (IGF) signaling is fundamental for growth and survival. A large body of evidence (laboratory, epidemiological, and clinical) implicates the exploitation of this pathway in cancer. Up to 50% of breast tumors express the activated form of the type 1 insulin-like growth factor receptor (IGF1R). Breast cancers are categorized into subtypes based upon hormone and ERRB2 receptor expression and/or gene expression profiling. Even though IGF1R influences tumorigenic phenotypes and drug resistance across all breast cancer subtypes, it has specific expression and function in each. In some subtypes, IGF1R levels correlate with a favorable prognosis, while in others it is associated with recurrence and poor prognosis, suggesting different actions based upon cellular and molecular contexts. In this review, we examine IGF1R expression and function as it relates to breast cancer subtype and therapy-acquired resistance. Additionally, we discuss the role of IGF1R in stem cell maintenance and lineage differentiation and how these cell fate influences may alter the differentiation potential and cellular composition of breast tumors.
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Affiliation(s)
- Susan M. Farabaugh
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
- Women’s Cancer Research Center, Magee-Womens Research Institute, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - David N. Boone
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
- Women’s Cancer Research Center, Magee-Womens Research Institute, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Adrian V. Lee
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
- Women’s Cancer Research Center, Magee-Womens Research Institute, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA
- *Correspondence: Adrian V. Lee, Magee-Womens Research Institute, University of Pittsburgh Cancer Institute, 204 Craft Avenue, Room A412, Pittsburgh, PA 15213, USA
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13
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Karimi K, Mahmoudi T, Karimi N, Dolatmoradi H, Arkani M, Farahani H, Vahedi M, Parsimehr E, Dabiri R, Nobakht H, Asadi A, Zali MR. Is there an association between variants in candidate insulin pathway genes IGF-I, IGFBP-3, INSR, and IRS2 and risk of colorectal cancer in the Iranian population? Asian Pac J Cancer Prev 2014; 14:5011-6. [PMID: 24175768 DOI: 10.7314/apjcp.2013.14.9.5011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Several epidemiological studies have shown associations between colorectal cancer (CRC) risk and type 2 diabetes and obesity. Any effects would be expected to be mediated through the insulin pathway. Therefore it is possible that variants of genes encoding components of the insulin pathway play roles in CRC susceptibility. In this study, we hypothesized that polymorphisms in the genes involving the insulin pathway are associated with risk of CRC. MATERIALS AND METHODS The associations of four single nucleotide polymorphisms (SNPs) in IGF-I (rs6214), IGFBP-3 (rs3110697), INSR (rs1052371), and IRS2 (rs2289046) genes with the risk of CRC were evaluated using a case-control design with 167 CRC cases and 277 controls by the PCR-RFLP method. RESULTS Overall, we observed no significant difference in genotype and allele frequencies between the cases and controls for the IGF-I, IGFBP-3, INSR, IRS2 gene variants and CRC before or after adjusting for confounders (age, BMI, sex, and smoking status). However, we observed that the IRS2 (rs2289046) GG genotype compared with AA+AG genotypes has a protective effect for CRC in normal weight subjects (p=0.035, OR=0.259, 95%CI= 0.074-0.907). CONCLUSIONS These findings do not support plausible associations between polymorphic variations in IGF-I, IGFBP-3, INSR, IRS2 genes and risk of CRC. However, the evidence for a link between the IRS2 (rs2289046) variant and risk of CRC dependent on the BMI of the subjects, requires confirmation in subsequent studies with greater sample size.
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Affiliation(s)
- Khatoon Karimi
- Gastroenterology and Liver Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran E-mail :
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14
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Xie HY, Xing CY, Wei BJ, Xu X, Wu J, Chen LM, Cao GQ, Chen H, Chen KJ, Yin SY, Wu LM, Zhou L, Zheng SS. Association of IGF1R polymorphisms with the development of HBV-related hepatocellular carcinoma. ACTA ACUST UNITED AC 2014; 84:264-70. [PMID: 24758241 DOI: 10.1111/tan.12360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 03/04/2014] [Accepted: 03/25/2014] [Indexed: 02/05/2023]
Affiliation(s)
- H.-Y. Xie
- Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health. Key Laboratory of Organ Transplantation, Collaborative innovation center for Diagnosis treatment of infectious diseases; Zhejiang University School of Medicine; Hangzhou China
| | - C.-Y. Xing
- Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health. Key Laboratory of Organ Transplantation, Collaborative innovation center for Diagnosis treatment of infectious diseases; Zhejiang University School of Medicine; Hangzhou China
| | - B.-J. Wei
- Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health. Key Laboratory of Organ Transplantation, Collaborative innovation center for Diagnosis treatment of infectious diseases; Zhejiang University School of Medicine; Hangzhou China
| | - X. Xu
- Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health. Key Laboratory of Organ Transplantation, Collaborative innovation center for Diagnosis treatment of infectious diseases; Zhejiang University School of Medicine; Hangzhou China
| | - J. Wu
- Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health. Key Laboratory of Organ Transplantation, Collaborative innovation center for Diagnosis treatment of infectious diseases; Zhejiang University School of Medicine; Hangzhou China
| | - L.-M. Chen
- Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health. Key Laboratory of Organ Transplantation, Collaborative innovation center for Diagnosis treatment of infectious diseases; Zhejiang University School of Medicine; Hangzhou China
| | - G.-Q. Cao
- Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health. Key Laboratory of Organ Transplantation, Collaborative innovation center for Diagnosis treatment of infectious diseases; Zhejiang University School of Medicine; Hangzhou China
| | - H. Chen
- Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health. Key Laboratory of Organ Transplantation, Collaborative innovation center for Diagnosis treatment of infectious diseases; Zhejiang University School of Medicine; Hangzhou China
| | - K.-J. Chen
- Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health. Key Laboratory of Organ Transplantation, Collaborative innovation center for Diagnosis treatment of infectious diseases; Zhejiang University School of Medicine; Hangzhou China
| | - S.-Y. Yin
- Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health. Key Laboratory of Organ Transplantation, Collaborative innovation center for Diagnosis treatment of infectious diseases; Zhejiang University School of Medicine; Hangzhou China
| | - L.-M. Wu
- Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health. Key Laboratory of Organ Transplantation, Collaborative innovation center for Diagnosis treatment of infectious diseases; Zhejiang University School of Medicine; Hangzhou China
| | - L. Zhou
- Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health. Key Laboratory of Organ Transplantation, Collaborative innovation center for Diagnosis treatment of infectious diseases; Zhejiang University School of Medicine; Hangzhou China
| | - S.-S. Zheng
- Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health. Key Laboratory of Organ Transplantation, Collaborative innovation center for Diagnosis treatment of infectious diseases; Zhejiang University School of Medicine; Hangzhou China
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15
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Genetic polymorphisms in IGF-I and IGFBP-3 are associated with prostate cancer in the Chinese population. PLoS One 2014; 9:e85609. [PMID: 24586243 PMCID: PMC3931615 DOI: 10.1371/journal.pone.0085609] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 12/05/2013] [Indexed: 11/19/2022] Open
Abstract
Insulin-like growth factor-I (IGF-I) and IGF binding protein-3 (IGFBP-3) are members of the insulin-like growth factor (IGF) family that play important roles in carcinogenesis. We hypothesized that the functional polymorphisms in IGF-I and IGFBP-3 may be associated with the risk of prostate cancer (PCa) in the Chinese population. This hospital-based case-control study included 664 PCa patients and 702 cancer-free controls. Nine SNPs in IGF-I and IGFBP-3 were genotyped using the TaqMan assay. The genetic associations between the pathogenesis and progression of PCa were assessed by logistic regression. We found that the genotype and allele frequency distribution of rs6218, rs35767 and rs5742612 were significantly different when comparing PCa cases to controls (P = 0.005, 0.005 and 0.020, respectively). In the combined analysis, individuals with 2–6 risk alleles had an elevated risk of PCa compared to those with 0–1 risk alleles. We also found that the association between the combined risk alleles and the risk of PCa appeared stronger in the following subgroups: individuals older than 71 years of age (OR = 1.41, 95%CI = 1.05–1.91, P = 0.020), nonsmokers (OR = 1.68, 95%CI = 1.21–2.32, P = 0.002), nondrinkers (OR = 1.32, 95%CI = 1.02–1.61, P = 0.002), and those with a negative family history of PCa (OR = 1.28, 95%CI = 1.02–1.71, P = 0.022). Our results indicate that the three SNPs (rs6218, rs35767 and rs5742612) and the joint genotypes with 2–6 risk alleles, may contribute to the susceptibility to PCa, but not the progression, in the Chinese population.
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16
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Fejerman L, Hu D, Huntsman S, John EM, Stern MC, Haiman CA, Pérez-Stable EJ, Ziv E. Genetic ancestry and risk of mortality among U.S. Latinas with breast cancer. Cancer Res 2013; 73:7243-53. [PMID: 24177181 PMCID: PMC3881587 DOI: 10.1158/0008-5472.can-13-2014] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Multiple studies have reported that Latina women in the United States are diagnosed with breast cancer at more advanced stages and have poorer survival than non-Latina White women. However, Latinas are a heterogeneous group with individuals having different proportions of European, Indigenous American, and African genetic ancestry. In this study, we evaluated the association between genetic ancestry and survival after breast cancer diagnosis among 899 Latina women from the San Francisco Bay area. Genetic ancestry was estimated from single-nucleotide polymorphisms from an Affymetrix 6.0 array and we used Cox proportional hazards models to evaluate the association between genetic ancestry and breast cancer-specific mortality (tests were two-sided). Women were followed for an average of 9 years during which 75 died from breast cancer. Our results showed that Individuals with higher Indigenous American ancestry had increased risk of breast cancer-specific mortality [HR: 1.57 per 25% increase in Indigenous American ancestry; 95% confidence interval (CI): 1.08-2.29]. Adjustment for demographic factors, tumor characteristics, and some treatment information did not explain the observed association (HR: 1.75; 95%CI, 1.12-2.74). In an analysis in which ancestry was dichotomized, the hazard of mortality showed a two-fold increase when comparing women with less than 50% Indigenous American ancestry to women with 50% or more [HR, 1.89, 95%CI, 1.10-3.24]. This was also reflected by Kaplan-Meier survival estimates (P for log-rank test of 0.003). Overall, results suggest that genetic factors and/or unmeasured differences in treatment or access to care should be further explored to understand and reduce ethnic disparities in breast cancer outcomes.
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Affiliation(s)
- Laura Fejerman
- Department of Medicine, Division of General Internal Medicine, Institute for Human Genetics, Helen Diller Family Comprehensive Cancer Center and Center for Aging in Diverse Communities, UCSF, San Francisco, CA 94158
| | - Donglei Hu
- Department of Medicine, Division of General Internal Medicine, UCSF, San Francisco, CA 94158
| | - Scott Huntsman
- Department of Medicine, Division of General Internal Medicine, UCSF, San Francisco, CA 94158
| | - Esther M. John
- Cancer Prevention Institute of California, Fremont, CA 94538
- Division of Epidemiology, Department of Health Research and Policy, and Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94503
| | - Mariana C. Stern
- Department of Preventive Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, Los Angeles, CA 90089
| | - Christopher A. Haiman
- Department of Preventive Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California. Los Angeles, CA 90033, US
| | - Eliseo J. Pérez-Stable
- Department of Medicine, Division of General Internal Medicine, Medical Effectiveness Research Center for Diverse Populations, and Helen Diller Family Comprehensive Cancer Cente UCSF, San Francisco, CA 94143
| | - Elad Ziv
- Department of Medicine, Division of General Internal Medicine, Institute for Human Genetics and Helen Diller Family Comprehensive Cancer Center, UCSF, San Francisco, CA 94158
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17
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Association of a common genetic variant of the IGF-1 gene with event-free survival in patients with HER2-positive breast cancer. J Cancer Res Clin Oncol 2012. [DOI: 10.1007/s00432-012-1355-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Urinary bladder cancer risk in relation to a single nucleotide polymorphism (rs2854744) in the insulin-like growth factor-binding protein-3 (IGFBP3) gene. Arch Toxicol 2011; 86:195-203. [DOI: 10.1007/s00204-011-0747-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Accepted: 08/11/2011] [Indexed: 10/17/2022]
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19
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Qian B, Zheng H, Yu H, Chen K. Genotypes and phenotypes of IGF-I and IGFBP-3 in breast tumors among Chinese women. Breast Cancer Res Treat 2011; 130:217-26. [DOI: 10.1007/s10549-011-1552-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Accepted: 04/25/2011] [Indexed: 10/18/2022]
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20
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Biong M, Gram IT, Brill I, Johansen F, Solvang HK, Alnaes GIG, Fagerheim T, Bremnes Y, Chanock SJ, Burdett L, Yeager M, Ursin G, Kristensen VN. Genotypes and haplotypes in the insulin-like growth factors, their receptors and binding proteins in relation to plasma metabolic levels and mammographic density. BMC Med Genomics 2010; 3:9. [PMID: 20302654 PMCID: PMC2853484 DOI: 10.1186/1755-8794-3-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2009] [Accepted: 03/19/2010] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Increased mammographic density is one of the strongest independent risk factors for breast cancer. It is believed that one third of breast cancers are derived from breasts with more than 50% density. Mammographic density is affected by age, BMI, parity, and genetic predisposition. It is also greatly influenced by hormonal and growth factor changes in a woman's life cycle, spanning from puberty through adult to menopause. Genetic variations in genes coding for hormones and growth factors involved in development of the breast are therefore of great interest. The associations between genetic polymorphisms in genes from the IGF pathway on mammographic density and circulating levels of IGF1, its binding protein IGFBP3, and their ratio in postmenopausal women are reported here. METHODS Samples from 964 postmenopausal Norwegian women aged 55-71 years were collected as a part of the Tromsø Mammography and Breast Cancer Study. All samples were genotyped for 25 SNPs in IGF1, IGF2, IGF1R, IGF2R, IGFALS and IGFBP3 using Taqman (ABI). The main statistical analyses were conducted with the PROC HAPLOTYPE procedure within SAS/GENETICS (SAS 9.1.3). RESULTS The haplotype analysis revealed six haploblocks within the studied genes. Of those, four had significant associations with circulating levels of IGF1 or IGFBP3 and/or mammographic density. One haplotype variant in the IGF1 gene was found to be associated with mammographic density. Within the IGF2 gene one haplotype variant was associated with levels of both IGF1 and IGFBP3. Two haplotype variants in the IGF2R were associated with the level of IGF1. Both variants of the IGFBP3 haplotype were associated with the IGFBP3 level and indicate regulation in cis. CONCLUSION Polymorphisms within the IGF1 gene and related genes were associated with plasma levels of IGF1, IGFBP3 and mammographic density in this study of postmenopausal women.
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Affiliation(s)
- Margarethe Biong
- Department of Genetics, Institute for Cancer Research, Oslo University Hospital Radiumhospitalet, Montebello 0310, Oslo, Norway
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21
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Zhang M, Hu Z, Huang J, Shu Y, Dai J, Jin G, Tang R, Dong J, Chen Y, Xu L, Huang X, Shen H. A 3'-Untranslated Region Polymorphism in IGF1 Predicts Survival of Non-Small Cell Lung Cancer in a Chinese Population. Clin Cancer Res 2010; 16:1236-44. [PMID: 20145156 DOI: 10.1158/1078-0432.ccr-09-2719] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Mingfeng Zhang
- Department of Epidemiology and Biostatistics, Cancer Center, Nanjing Medical University, Nanjing, China
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22
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Weng CJ, Hsieh YH, Tsai CM, Chu YH, Ueng KC, Liu YF, Yeh YH, Su SC, Chen YC, Chen MK, Yang SF. Relationship of insulin-like growth factors system gene polymorphisms with the susceptibility and pathological development of hepatocellular carcinoma. Ann Surg Oncol 2010; 17:1808-15. [PMID: 20119675 DOI: 10.1245/s10434-009-0904-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2009] [Indexed: 12/16/2022]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is one of the major causes of cancer-related death worldwide. The insulin-like growth factors (IGFs) system consists of a group of proteins which may induce cell proliferation and inhibit cell apoptosis through several signal pathways, leading to transformation of normal cells into cancer cells. However, the impact of genetic polymorphisms of the IGFs system on HCC has not been clarified. METHODS In this case-control study, a total of 102 HCC patients and 306 age- and gender-matched controls were recruited. The genetic polymorphisms of the IGFs system genes, including IGF-1, IGF-2, IGF-1receptor (IGF-1R), IGF-2R, IGF binding protein (IGFBP-3), and insulin (INS) genes, were analyzed by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) and real-time PCR genotyping analysis. RESULTS A significant difference (p = 0.02) between case and control group in the distribution frequency of IGF-2 +3580 polymorphism was observed. Multiple regression model analysis showed that the presence of AA or AG at IGF-2R may exhibit a potential protective effect against hepatitis C [odds ratio (OR) = 0.35, 95% confidence interval (CI) = 0.15-0.82]. The combination of IGF-2 +3580 AA genotype and IGF-2R GG genotype may present a significantly lower risk of HCC (OR = 0.20, 95% CI = 0.05-0.87). Additionally, no polymorphisms of any IGFs system genes were associated with liver-related clinicopathological markers in serum. CONCLUSIONS Among IGFs system genes, IGF-2 and IGF-2R gene polymorphisms and combination could be considered as the most important factors contributing to increased susceptibility and pathological development of HCC.
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23
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Cheng J, Liu J, Li X, Peng J, Han S, Zhang R, Xu Y, Nie S. Insulin-like growth factor-1 receptor polymorphism and ischemic stroke: a case-control study in Chinese population. Acta Neurol Scand 2008; 118:333-8. [PMID: 18477064 DOI: 10.1111/j.1600-0404.2008.01040.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Low levels of insulin-like growth factor 1 (IGF-1) are associated with atherosclerosis, and insulin-like growth factor-1 receptor (IGF-1R) polymorphisms can change plasma levels of IGF-1 and may alter the function of the receptor. Whether there is any association of genetic variation in IGF-1R gene with ischemic stroke (IS) is presently unknown. MATERIALS AND METHOD A 1:1 case-control study was conducted. The G --> A polymorphism of IGF-1R gene (rs2229765) were analyzed by TaqMan SNP genotyping technique in Chinese patients with IS (n = 309) and old subjects without IS (n = 309). RESULTS The frequency of A allele in the patients and controls was 45.79% and 39.64%, respectively. The AA genotype distribution of IGF-1R gene was significantly higher in the patients (27.51%) than controls (18.23%; P = 0.022). Conditional logistic regression revealed that the AA genotype of IGF-1R was associated with IS (OR = 1.641, P = 0.022). After adjustment for smoking, alcohol drinking, history of hypertension, and body mass index, IGF-1R AA genotype was still significantly associated with an increased risk of IS (OR = 1.787, P = 0.029), compared with IGF-1R GG. CONCLUSIONS The G --> A polymorphism in IGF-1R gene may affect the susceptibility to IS in Chinese population.
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Affiliation(s)
- J Cheng
- Department of Molecular Biology, Shenzhen Center for Disease Control and Prevention, Shenzhen, China.
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24
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Ester WA, Hokken-Koelega ACS. Polymorphisms in the IGF1 and IGF1R genes and children born small for gestational age: results of large population studies. Best Pract Res Clin Endocrinol Metab 2008; 22:415-31. [PMID: 18538283 DOI: 10.1016/j.beem.2008.03.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Small for gestational age (SGA) is the term used to describe a group of children born with a birth weight and/or birth length below the normal range of a reference population, corrected for their gestational age. Although animal models have shown that insulin-like growth factor 1 (IGF1) and insulin-like growth factor 1 receptor (IGF1R) genes are important candidates for reduced pre- and postnatal growth, only limited case reports have been published describing mutations. This might suggest that IGF1 and IGF1R are such crucial growth factors that only common genetic polymorphisms are allowed to survive. Common IGF1 and IGF1R gene polymorphisms, such as single nucleotide polymorphisms and variable number of tandem repeats, have been investigated with conflicting results with respect to SGA-related outcomes. The exact contribution of these polymorphisms to clinical practice remains to be elucidated.
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Affiliation(s)
- W A Ester
- Department of Paediatrics, Division of Endocrinology, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands.
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Genetic variation in IGFBP2 and IGFBP5 is associated with breast cancer in populations of African descent. Hum Genet 2008; 123:247-55. [PMID: 18210156 DOI: 10.1007/s00439-008-0468-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2007] [Accepted: 01/11/2008] [Indexed: 01/21/2023]
Abstract
The insulin-like growth factor (IGF) signaling pathway is thought to play a major role in the etiology of breast cancer. Although incidence rates of breast cancer overall are lower in African Americans than in Caucasians, African-American women have a higher incidence under age 40 years, are diagnosed with more advanced disease, and have poorer prognosis. We investigated the association of breast cancer and genetic variants in genes in the IGF signaling pathway in a population-based case-control study of African-American women. We found significant associations at a locus encompassing parts of the IGFBP2 and IGFBP5 genes on chromosome 2q35, which we then replicated in a case-control study of Nigerian women. Based on those initial findings, we genotyped a total of 34 single nucleotide polymorphisms (SNPs) across the region in both study populations. Statistically significant associations with breast cancer were observed across approximately 50 kb of DNA sequence encompassing three exons in the 3' end of IGFBP2 and three exons in the 3' end of IGFBP5. SNPs were associated with breast cancer risk with P values as low as P = 0.0038 and P = 0.01 in African-Americans and Nigerians, respectively. This study is the first to report associations between genetic variants in IGFBP2 and IGFBP5 and breast cancer risk.
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