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The Effects of BMI and Genetic Variation of Adipokines on Serum Concentrations of Hormones in Untreated Individuals with Breast Cancer; a Pilot Study. INTERNATIONAL JOURNAL OF CANCER MANAGEMENT 2022. [DOI: 10.5812/ijcm-120259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Background: Numerous studies have shown an association between hormones secreted by adipose tissues and cancer development. Objectives: This study aimed at investigating the effect of body mass index (BMI) and genetic variation of leptin and adiponectin on serum concentrations of leptin, adiponectin, and estradiol among untreated breast cancer. Methods: This case-control study was performed on 350 women (175 women with breast cancer and 175 healthy controls), who had not taken any medications. Serum levels of estradiol (17-beta estradiol), leptin, and adiponectin were measured, using the ELISA technique. Single-nucleotide polymorphisms of leptin gene (LepG2548A), leptin receptor (Q223, K109R, and K656N), and adiponectin gene (T45G, G276T, C11377G, and 11391A) in blood-isolated DNA were evaluated, using RFLP-PCR technique. Results: Body mass index can affect serum concentrations of hormones and is associated with breast cancer. Also, except for adiponectin C11377G polymorphism, other all genetic variations showed significant relationships with breast cancer. In both groups, BMI was significantly correlated with the mean serum concentrations of hormones, and the risk of breast cancer increased in G2548A, Q223R, K656N, and G276T polymorphisms. The effect of risk allele genotypes on serum concentration of hormones showed that changes in serum concentration of estrogen and leptin in all studied polymorphisms were associated with breast cancer in postmenopausal women. But adiponectin level was only affected by polymorphisms K109R, K656N, and G276 and G11391A. Conclusions: High BMI and genetic variation can affect cancer development by changing the serum concentrations of hormones in different genotypes. Studying various populations’ genetics and lifestyle can help definitive conclusions about genetics and obesity.
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Li L, Meng X, Liu L, Xiang Y, Wang F, Yu L, Zhou F, Zheng C, Zhou W, Cui S, Tian F, Fan Z, Geng C, Cao X, Yang Z, Wang X, Liang H, Wang S, Jiang H, Duan X, Wang H, Li G, Wang Q, Zhang J, Jin F, Tang J, Li L, Zhu S, Zuo W, Ye C, Yin G, Ma Z, Huang S, Yu Z. Single-Nucleotide Polymorphisms in LEP and LEPR Associated With Breast Cancer Risk: Results From a Multicenter Case-Control Study in Chinese Females. Front Oncol 2022; 12:809570. [PMID: 35223490 PMCID: PMC8866686 DOI: 10.3389/fonc.2022.809570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 01/14/2022] [Indexed: 11/16/2022] Open
Abstract
Background Leptin (LEP) plays a physiological role through its specific receptor (LEPR) and is involved in the occurrence and development of breast cancer. Our current study aimed at determining the influence of single-nucleotide polymorphisms (SNPs) in the genes coding for LEP and LEPR on breast cancer risk. Methods In the present study, 963 breast cancer cases and 953 controls were enrolled. Five SNPs of LEP and two of LEPR were chosen to evaluate the correlation of selected SNPs with breast cancer susceptibility among women in northern and eastern China. Analyses were further stratified by body mass index (BMI), waist–hip rate (WHR), estrogen receptor, and progesterone receptor status. The expression patterns of risk variant-associated genes were detected by expression quantitative trait locus (eQTL) analysis with eQTLGen and The Cancer Genome Atlas database. Results There were significant differences between breast cancer cases and control groups in the menopausal status and family history of breast cancer. Two SNPs (rs1137101 and rs4655555) of the LEPR gene decreased overall breast cancer risk, and other five SNPs showed no significant association with breast cancer risk. rs1137101 (GA vs. GG; adjusted OR = 0.719, 95% CI = 0.578–0.894, p = 0.003) and rs4655555 (TT vs. AA; adjusted OR = 0.574, 95% CI = 0.377–0.873, p = 0.009) significantly decreased breast cancer risk after Bonferroni correction for multiple testing. In subgroup analyses, the GA and GA + AA genotypes of LEPR rs1137101 associated with decreased breast cancer risk in the subgroup of BMI ≤ 24 kg/m2 or WHR ≥ 0.85 after Bonferroni correction. Furthermore, we found that the expressions of rs4655555-associated gene LEPR and leptin receptor overlapping transcript (LEPROT) were upregulated in breast cancer tumor tissues compared with adjacent normal tissues, and a higher expression of LEPR in tumor tissues was correlated with poor prognosis of breast cancer patients using The Cancer Genome Atlas Breast Invasive Carcinoma (TCGA-BRCA) data. Conclusion Our study demonstrated that the polymorphisms rs1137101 and rs4655555 located in the LEPR gene decreased breast cancer risk in Chinese females, which might be a research-worthy bio-diagnostic marker and applied for early prediction and risk assessment of breast cancer.
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Affiliation(s)
- Liang Li
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China.,Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan, China
| | - Xingchen Meng
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Liyuan Liu
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China.,Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan, China
| | - Yujuan Xiang
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China.,Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan, China
| | - Fei Wang
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China.,Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan, China
| | - Lixiang Yu
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China.,Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan, China
| | - Fei Zhou
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China.,Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan, China
| | - Chao Zheng
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China.,Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan, China
| | - Wenzhong Zhou
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China.,Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan, China
| | - Shude Cui
- Department of Breast Surgery, Affiliated Tumor Hospital of Zhengzhou University, Zhengzhou, China
| | - Fuguo Tian
- Department of Breast Surgery, Shanxi Cancer Hospital, Taiyuan, China
| | - Zhimin Fan
- Department of Breast Surgery, The First Hospital of Jilin University, Changchun, China
| | - Cuizhi Geng
- Department of Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xuchen Cao
- Department of Breast Surgery, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Zhenlin Yang
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Binzhou Medical University, Binzhou, China
| | - Xiang Wang
- Department of Breast Surgery, Cancer Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Hong Liang
- Department of General Surgery, Linyi People's Hospital, Linyi, China
| | - Shu Wang
- Department of Breast Disease Center, Peking University People's Hospital, Beijing, China
| | - Hongchuan Jiang
- Department of General Surgery, Beijing Chaoyang Hospital, Beijing, China
| | - Xuening Duan
- Department of Breast Disease Center, Peking University First Hospital, Beijing, China
| | - Haibo Wang
- Department of Breast Center, Qingdao University Affiliated Hospital, Qingdao, China
| | - Guolou Li
- Department of Breast and Thyroid Surgery, Weifang Traditional Chinese Hospital, Weifang, China
| | - Qitang Wang
- Department of Breast Surgery, The Second Affiliated Hospital of Qingdao Medical College, Qingdao Central Hospital, Qingdao, China
| | - Jianguo Zhang
- Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Feng Jin
- Department of Breast Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jinhai Tang
- Department of General Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China
| | - Liang Li
- Department of Breast and Thyroid Surgery, Zibo Central Hospital, Zibo, China
| | - Shiguang Zhu
- Department of Breast Surgery, Yantai Yuhuangding Hospital, Yantai, China
| | - Wenshu Zuo
- Department of Breast Cancer Center, Shandong Cancer Hospital, Jinan, China
| | - Chunmiao Ye
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Gengshen Yin
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhongbing Ma
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China.,Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan, China
| | - Shuya Huang
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China.,Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan, China
| | - Zhigang Yu
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China.,Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan, China
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Evaluation of Leptin Receptor Q223R (rs1137101) Polymorphism Based on Histopathological and Body Mass Index Characteristics in Iranian Females with Breast Cancer. INTERNATIONAL JOURNAL OF CANCER MANAGEMENT 2020. [DOI: 10.5812/ijcm.92731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Investigation of leptin receptor rs1137101 G>A polymorphism with cancer risk: evidence from 35936 subjects. Biosci Rep 2019; 39:BSR20182240. [PMID: 31196966 PMCID: PMC6597850 DOI: 10.1042/bsr20182240] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 05/25/2019] [Accepted: 06/11/2019] [Indexed: 12/24/2022] Open
Abstract
Leptin receptor (LEPR) signaling may be involved in promoting angiogenesis and proliferation, inhibiting apoptosis and playing a vital role in the progression of carcinogenesis. A number of studies have focused on the association of LEPR rs1137101 variants with susceptibility of cancer, however, the observed results were controversial. We searched literature on the relationship of LEPR rs1137101 G>A polymorphism with cancer risk by using PubMed and Embase databases, covering all publications up to 14 October 2018. In total, 44 case–control studies with 35,936 subjects were included. After combining all eligible studies, we identified null relationship between LEPR gene rs1137101 G>A polymorphism and overall cancer risk [A vs. G: odds ratio (OR ) = 0.97, 95% confidence interval (CI ) = 0.89–1.06, P = 0.547; AA vs. GG: OR = 0.93, 95% CI = 0.78–1.13, P = 0.476; AA/GA vs. GG: OR = 0.99, 95% CI = 0.91–1.09, P= 0.890 and AA vs. GA/GG: OR = 0.92, 95% CI = 0.82–1.04, P= 0.198]. However, in a subgroup analysis, there was an increased susceptibility of oral and oropharyngeal cancer in AA vs. GA/GG genetic model (OR, 1.83; 95% CI, 1.01–3.33; P=0.048). Considering the limited participants were included, the findings might be underpowered. Sensitivity analysis identified that any independent study omitted did not materially influence the pooled ORs and CIs. The results of publication bias detection showed that there was no evidence of bias. In summary, this analysis indicates that no significant association of cancer risk was identified to be correlated with rs1137101 G>A variants, even in stratified analyses.
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Tzanavari T, Tasoulas J, Vakaki C, Mihailidou C, Tsourouflis G, Theocharis S. The Role of Adipokines in the Establishment and Progression of Head and Neck Neoplasms. Curr Med Chem 2018; 26:4726-4748. [PMID: 30009699 DOI: 10.2174/0929867325666180713154505] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Revised: 03/13/2018] [Accepted: 07/06/2018] [Indexed: 12/15/2022]
Abstract
Adipokines constitute a family of protein factors secreted by white adipose tissue (WAT), that regulate the functions of WAT and other sites. Leptin, adiponectin and resistin, are the main adipokines present in serum and saliva, targeting several tissues and organs, including vessels, muscles, liver and pancreas. Besides body mass regulation, adipokines affect glucose homeostasis, inflammation, angiogenesis, cell proliferation and apoptosis, and other crucial cell procedures. Their involvement in tumor formation and growth is well established and deregulation of adipokine and adipokine receptors' expression is observed in several malignancies including those located in the head and neck region. Intracellular effects of adipokines are mediated by a plethora of receptors that activate several signaling cascades including Janus kinase/ Signal transducer and activator of transcription (JAK/ STAT pathway), Phospatidylinositol kinase (PI3/ Akt/ mTOR) and Peroxisome proliferator-activated receptor (PPAR). The present review summarizes the current knowledge on the role of adipokines family members in carcinogenesis of the head and neck region. The diagnostic and prognostic significance of adipokines and their potential role as serum and saliva biomarkers are also discussed.
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Affiliation(s)
- Theodora Tzanavari
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Athens, 11527, Greece
| | - Jason Tasoulas
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Athens, 11527, Greece
| | - Chrysoula Vakaki
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Athens, 11527, Greece
| | - Chrysovalantou Mihailidou
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Athens, 11527, Greece
| | - Gerasimos Tsourouflis
- Second Department of Propaedeutic Surgery, Medical School, National and Kapodistrian, University of Athens, Athens, 11527, Greece
| | - Stamatios Theocharis
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Athens, 11527, Greece
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Leptin receptor gene (A/G) polymorphism rs1137101 and renal cell carcinoma. Mol Cell Biochem 2018; 448:137-144. [PMID: 29453609 DOI: 10.1007/s11010-018-3320-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 02/07/2018] [Indexed: 12/18/2022]
Abstract
Leptin plays an important role in carcinogenesis as leptin/leptin receptor signaling promotes the angiogenesis, proliferation, and inhibits epithelial cell apoptosis. Variants in the leptin receptor gene have potential associations with renal cell carcinoma (RCC). We aimed to investigate association of rs1137101 (A/G) polymorphism at LEPR gene with risk of RCC and patients survival. 123 individuals were classified into group I: 73 RCC patients and group II: 50 healthy controls. Genotyping of the Gln223Arg (A/G) polymorphism rs1137101 at LEPR gene was analyzed using allelic discrimination assay by Real-Time PCR technique. GG genotype was the most frequent among RCC patients (67.1%), while AA genotype was the most frequent in controls (60%); (p < 0.001). By univariate cox regression: gene polymorphism (GG versus GA +AA), stage, histopathologic subtype, and grade were found to affect survival significantly; however, the multivariate analysis showed that only gene polymorphism (GG versus GA +AA) and tumor stage significantly affect survival. LEPR gene variants rs1137101 might be a candidate risk factor for RCC in Egypt. GG genotype is associated with more aggressive tumor behavior and shorter survival compared with GA & AA genotypes so, genotyping of Gln223Arg (A/G) rs1137101 could also predict RCC outcome.
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Luan H, Zhang H, Li Y, Wang P, Cao L, Ma H, Cui Q, Tian G. Association of two obesity-related gene polymorphisms LEPG2548A rs7799039 and LEPRQ223R rs1137101 with the risk of breast cancer. Oncotarget 2017; 8:59333-59344. [PMID: 28938640 PMCID: PMC5601736 DOI: 10.18632/oncotarget.19580] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 06/28/2017] [Indexed: 12/18/2022] Open
Abstract
Many studies have been performed to investigate the correlation of leptin (LEP) and leptin receptor (LEPR) polymorphisms with breast cancer (BC) risk, however the results are inconclusive. To obtain a more precise estimation, we conducted this meta-analysis. We searched PubMed, EMBASE, and Web of Science databases to identify qualified studies. Pooled odds ratios (ORs) with 95% confidence intervals (CIs) were used to evaluate the association. Eight eligible studies (2,124 cases and 5,476 controls) for LEP G2548A (rs7799039) polymorphism, and thirteen studies (5,282 cases and 6,140 controls) for LEPR Q223R (rs1137101) polymorphism were included in our study. In general, no significant association between LEP G2548A polymorphism and BC susceptibility was found among five genetic models. In the stratified analysis by ethnicity and sources of controls, significant associations were still not detected in all genetic models. For LEPR Q223R polymorphism, we observed that the association was only statistically significant in Asians (G versus A: OR = 0.532, P = 0.009; GG versus AA: OR = 0.233, P = 0.002; GA versus AA: OR =0.294, P = 0.006; GG versus AA+AG: OR =0.635, P = 0; GA+GG versus AA: OR = 0.242, P = 0.003), but not in general populations and Caucasians. In conclusion, LEP G2548A polymorphism has no relationship with BC susceptibility, while LEPR Q223R polymorphism could decrease BC risk in Asians, but not in overall individuals and Caucasians. More multicenter studies with larger sample sizes are required for further investigation.
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Affiliation(s)
- Hui Luan
- Department of Cardiovasology, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Hong Zhang
- Department of Oncology, Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Ying Li
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Ping Wang
- Department of Cardiovasology, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Lifei Cao
- Department of Cardiovasology, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Honglan Ma
- Department of Cardiovasology, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Qing Cui
- Department of Cardiovasology, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Gang Tian
- Department of Cardiovasology, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Park B, Shin A, Kim KZ, Lee YS, Hwang JA, Kim Y, Sung J, Yoo KY, Lee ES. Lack of effects of peroxisome proliferator-activated receptor gamma genetic polymorphisms on breast cancer risk: a case-control study and pooled analysis. Asian Pac J Cancer Prev 2015; 15:9093-9. [PMID: 25422184 DOI: 10.7314/apjcp.2014.15.21.9093] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
A growing body of evidence suggests that the peroxisome proliferator-activated receptor-gamma (PPARγ) gene may harbor targets for the chemoprevention of breast cancer. However, it is unclear whether polymorphisms in the PPARγ gene are associated with the susceptibility of breast cancer. We performed a candidate gene association study between PPARγ polymorphisms and breast cancer and a meta-analysis on the association of breast cancer with selected PPARγ variants. Six single nucleotide polymorphisms (SNPs) in the PPARγ gene were analyzed among 456 breast cancer patients and 461 controls from the National Cancer Center in Korea. Association between the polymorphisms and breast cancer risk were assessed using the Cochrane-Armitage test for trend and a multivariate logistic regression model. Two SNPs, rs3856806 and rs1801282, had been previously analyzed, thus enabling us to perform pooled analyses on their associations with breast cancer susceptibility. Our findings from the candidate gene association study showed no association between the PPARγ gene polymorphisms and breast cancer risk. A meta-analysis combining existing studies and our current study also refuted an association of the PPARγ gene with breast cancer. Our findings suggest that the PPARγ gene may not harbor variants that alter breast cancer susceptibility, although a moderate sample size might have precluded a decisive conclusion.
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Affiliation(s)
- Boyoung Park
- National Cancer Control Institute, National Cancer Center, Gyeonggi-do, South Korea E-mail :
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de Martino M, Leitner CV, Hofbauer SL, Lucca I, Haitel A, Shariat SF, Klatte T. Serum Adiponectin Predicts Cancer-specific Survival of Patients with Renal Cell Carcinoma. Eur Urol Focus 2015; 2:197-203. [PMID: 28723535 DOI: 10.1016/j.euf.2015.06.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2015] [Revised: 05/24/2015] [Accepted: 06/30/2015] [Indexed: 12/30/2022]
Abstract
BACKGROUND Prediction of outcomes in patients with renal cell carcinoma (RCC) is crucial for clinical decision-making. The limited accuracy of conventional prognostic factors such as stage and grade may be increased by the use of biomarkers. OBJECTIVE To evaluate the association of serum adiponectin and leptin and polymorphisms in the leptin and leptin receptor genes with RCC histopathology and prognosis. DESIGN, SETTING, AND PARTICIPANTS Adiponectin and leptin levels were measured in preoperative serum samples from 131 consecutive patients with sporadic unilateral RCC. The polymorphisms G-2548A (rs7799039) in the leptin gene (LEP) and Gln223Arg (Q223R, A668G, rs1137101) in the leptin receptor gene (LEPR) were genotyped in 233 patients. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Multivariable associations with RCC-specific survival were analyzed using Cox models. RESULTS AND LIMITATIONS Median preoperative serum adiponectin was 15.8μg/ml (interquartile range 10.0-23.1). Adiponectin was lower in patients with distant metastases (p=0.017) or histologic tumor necrosis (p=0.015). On multivariable analysis adjusted for the effects of variables in the Karakiewicz nomogram, each 1-μg/ml increase in adiponectin was associated with a 8% decrease in the hazard of death from RCC (hazard ratio 0.92, 95% confidence interval 0.86-0.98; p=0.007). The discrimination of the Karakiewicz nomogram increased by 0.6% on inclusion of adiponectin. Leptin levels, LEP G-2548A and LEPR Q223R were not associated with either RCC pathology or outcomes. Limitations include the retrospective study design, the low numbers of patients, and a lack of standardized follow-up. CONCLUSIONS This study suggests that lower preoperative serum adiponectin is associated with features of biologically aggressive RCC, metastasis, and survival. PATIENT SUMMARY We assessed the relationship between outcomes and blood levels of adiponectin and leptin and genetic changes in leptin and leptin receptor genes. We found that patients with lower adiponectin levels have more aggressive tumors and poorer survival.
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Affiliation(s)
- Michela de Martino
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Carmen V Leitner
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Sebastian L Hofbauer
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Ilaria Lucca
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Andrea Haitel
- Clinical Institute of Pathology, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Shahrokh F Shariat
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna General Hospital, Vienna, Austria; Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Urology, Weill Cornell Medical College, New York Presbyterian Hospital, New York, NY, USA
| | - Tobias Klatte
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna General Hospital, Vienna, Austria.
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Mu HJ, Zou J, Xie P, Xu ZQ, Ruan J, Yang SD, Yin Y. Association of leptin receptor Lys109Arg and Gln223Arg polymorphisms with increased risk of clear cell renal cell carcinoma. Asian Pac J Cancer Prev 2015; 15:4211-5. [PMID: 24935373 DOI: 10.7314/apjcp.2014.15.10.4211] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Although roles of genetic polymorphisms of leptin receptor (LEPR) gene in several cancers have been documented, the association between polymorphisms of LEPR and clear cell renal cell carcinoma (CC-RCC) remains unknown. The aim of this study was to explore any relation. MATERIALS AND METHODS The study population consisted of 77 patients with CC-RCC and 161 healthy control subjects. Polymorphism analyses of Lys109Arg and Gln223Arg were performed by direct DNA sequencing and PCR-restriction fragment length polymorphism approaches respectively. RESULTS Comparisons of allelic and genotypic frequencies in Lys109Arg and Gln223Arg showed no significant difference between the cases and controls. However, when evaluating the combined genotype of Lys109Arg and Gln223Arg, risk with GG/GG was increased (OR=1.85, 95%CI=1.04-3.30) and with GA/GG or GG/GA was decreased (OR=0.07, 95%CI=0.01-0.54; OR and 95%CI of the latter could not be calculated for a value of zero) . Furthermore, the G-G haplotype frequency of Lys109Arg and Gln223Arg in the cases was higher (OR=1.68; 95%CI=1.02-2.76). In contrast, the A-G and G-A haplotype frequencies in the cases were lower than those in the controls (OR=0.06; 95%CI=0.01 to 0.47; OR and 95%CI of the latter could not be calculated for a value of zero). In addition, the Lys109Arg A allele was in LD with the Gln223Arg A allele (d'=0.9399) in the CC-RCC subjects, but not in the controls. CONCLUSIONS Our data suggest that the GG/GG combined genotype and G-G haplotype of Lys109Arg and Gln223Arg can act as evaluating factors for CC-RCC risk.
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Affiliation(s)
- Hui-Jun Mu
- Department of Clinical Laboratory Science, Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu Province, China E-mail :
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Wang Y, Yang H, Gao H, Wang H. The association between LEPR Q223R polymorphisms and breast cancer risk. Breast Cancer Res Treat 2015; 151:1-6. [DOI: 10.1007/s10549-015-3375-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 04/07/2015] [Indexed: 10/23/2022]
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Marcello MA, Calixto AR, de Almeida JFM, Martins MB, Cunha LL, Cavalari CAA, Etchebehere ECS, da Assumpção LVM, Geloneze B, Carvalho AL, Ward LS. Polymorphism in LEP and LEPR May Modify Leptin Levels and Represent Risk Factors for Thyroid Cancer. Int J Endocrinol 2015; 2015:173218. [PMID: 25810718 PMCID: PMC4355553 DOI: 10.1155/2015/173218] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 02/13/2015] [Indexed: 12/19/2022] Open
Abstract
Purpose. To understand the role of polymorphisms in the LEP (rs7799039 and rs2167270) and LEPR (rs1137101 and rs1137100) genes in DTC susceptibility and their effect on leptin levels. Methods. We studied 153 patients with DTC and 234 controls through TaqMan SNP Genotyping and ELISA, comparing these data to the clinicopathological data of patients with DTC. Results. Patients with AA genotype of rs7799039 had higher levels of serum leptin (9.22 ± 0.98 ng/mL) than those with AG genotype (10.07 ± 0.60 ng/mL; P = 0.005). Individuals with AG genotype of rs2167270 also produced higher serum leptin levels (10.05 ± 0.59 ng/mL) than the subjects with GG genotype (9.52 ± 0.79 ng/mL; P < 0.05). A multivariate logistic regression adjusted for gender, age, and BMI showed that the AG genotype of rs7799039 was an independent risk for DTC (OR, 11.689; P = 0.0183; 95% CI, 1.516-90.119). Similarly, AG and GG genotypes of rs1137101 increased the susceptibility to DTC (OR, 3.747; P = 0.027; 95% CI, 1.161-12.092 and OR, 5.437; P = 0.013; 95% CI, 1.426-20.729). Conclusions. We demonstrated that rs7799039 and rs2167270 polymorphisms modify the serum leptin concentrations in patients with DTC. Furthermore, polymorphisms rs7799039 and rs1137101 increase the risk of DTC development, although they do not correlate with tumor aggressiveness.
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Affiliation(s)
- Marjory Alana Marcello
- Laboratory of Cancer Molecular Genetics (Gemoca), Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo 126, 13083-970 Campinas, SP, Brazil
- *Marjory Alana Marcello:
| | - Antonio Ramos Calixto
- Laboratory of Investigation on Metabolism and Diabetes (LIMED), Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Carlos Chagas 420, 13083-878 Campinas, SP, Brazil
| | - Jacqueline Fatima Martins de Almeida
- Laboratory of Cancer Molecular Genetics (Gemoca), Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo 126, 13083-970 Campinas, SP, Brazil
| | - Mariana Bonjiorno Martins
- Laboratory of Cancer Molecular Genetics (Gemoca), Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo 126, 13083-970 Campinas, SP, Brazil
| | - Lucas Leite Cunha
- Laboratory of Cancer Molecular Genetics (Gemoca), Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo 126, 13083-970 Campinas, SP, Brazil
| | - Camila Ayume Amano Cavalari
- Laboratory of Cancer Molecular Genetics (Gemoca), Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo 126, 13083-970 Campinas, SP, Brazil
| | - Elba C. S. Etchebehere
- Service of Nuclear Medicine, University of Campinas, Rua Vital Brasil 251, 13083-888 Campinas, SP, Brazil
| | | | - Bruno Geloneze
- Laboratory of Investigation on Metabolism and Diabetes (LIMED), Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Carlos Chagas 420, 13083-878 Campinas, SP, Brazil
| | - Andre Lopes Carvalho
- Department of Head and Neck Surgery, Barretos Cancer Hospital, Rua Antenor Duarte Vilela 1331, 14784-400 Barretos, SP, Brazil
| | - Laura Sterian Ward
- Laboratory of Cancer Molecular Genetics (Gemoca), Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo 126, 13083-970 Campinas, SP, Brazil
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Rostami S, Kohan L, Mohammadianpanah M. The LEP G-2548A gene polymorphism is associated with age at menarche and breast cancer susceptibility. Gene 2014; 557:154-7. [PMID: 25510398 DOI: 10.1016/j.gene.2014.12.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 11/25/2014] [Accepted: 12/11/2014] [Indexed: 10/24/2022]
Abstract
Leptin is an adipocytokine made by fat cells and plays a key role in proliferation, cell survival, migration and immune response. It has a powerful effect on the initiation of puberty and in determining age at menarche. The current study is the first investigation to examine the effect of G-2548A leptin gene polymorphism on the age at menarche and breast cancer susceptibility. This case-control study was performed on 203 patients with breast cancer and 171 healthy women. The leptin genotypes were determined using the PCR-RFLP method and age at menarche was obtained by questionnaires. There was a significant difference between the leptin G-2548A genotypes between case and control groups (P<0.05). AA genotype is significantly higher in patients compared to the controls. Furthermore, women carrying the AA genotype had a significantly younger age at menarche (12.47 years) than women with the AG (12.94 years) and GG (13.47 years) genotypes. Also, we found that the AA genotype frequency in women with age at menarche <13 years was higher than in women with age at menarche ≥13 years (OR: 3.4, 95% CI: 1.7-6.7, P: 0.001). In conclusion, the G-2548A leptin gene polymorphism has an important role in the onset of menarche and breast cancer susceptibility.
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Affiliation(s)
- Sara Rostami
- Department of Biology, Islamic Azad University, Arsanjan Branch, Arsanjan, Iran; Yong Researchers and Elite Club, Islamic Azad University, Arsanjan Branch, Arsanjan, Iran
| | - Leila Kohan
- Department of Biology, Islamic Azad University, Arsanjan Branch, Arsanjan, Iran; Yong Researchers and Elite Club, Islamic Azad University, Arsanjan Branch, Arsanjan, Iran.
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Vargas T, Moreno-Rubio J, Herranz J, Cejas P, Molina S, González-Vallinas M, Ramos R, Burgos E, Aguayo C, Custodio AB, Reglero G, Feliu J, Ramírez de Molina A. Genes associated with metabolic syndrome predict disease-free survival in stage II colorectal cancer patients. A novel link between metabolic dysregulation and colorectal cancer. Mol Oncol 2014; 8:1469-81. [PMID: 25001263 PMCID: PMC5528602 DOI: 10.1016/j.molonc.2014.05.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 04/08/2014] [Accepted: 05/27/2014] [Indexed: 01/30/2023] Open
Abstract
Studies have recently suggested that metabolic syndrome and its components increase the risk of colorectal cancer. Both diseases are increasing in most countries, and the genetic association between them has not been fully elucidated. The objective of this study was to assess the association between genetic risk factors of metabolic syndrome or related conditions (obesity, hyperlipidaemia, diabetes mellitus type 2) and clinical outcome in stage II colorectal cancer patients. Expression levels of several genes related to metabolic syndrome and associated alterations were analysed by real-time qPCR in two equivalent but independent sets of stage II colorectal cancer patients. Using logistic regression models and cross-validation analysis with all tumour samples, we developed a metabolic syndrome-related gene expression profile to predict clinical outcome in stage II colorectal cancer patients. The results showed that a gene expression profile constituted by genes previously related to metabolic syndrome was significantly associated with clinical outcome of stage II colorectal cancer patients. This metabolic profile was able to identify patients with a low risk and high risk of relapse. Its predictive value was validated using an independent set of stage II colorectal cancer patients. The identification of a set of genes related to metabolic syndrome that predict survival in intermediate-stage colorectal cancer patients allows delineation of a high-risk group that may benefit from adjuvant therapy and avoid the toxic and unnecessary chemotherapy in patients classified as low risk. Our results also confirm the linkage between metabolic disorder and colorectal cancer and suggest the potential for cancer prevention and/or treatment by targeting these genes.
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Affiliation(s)
| | - Juan Moreno-Rubio
- Translational Oncology Laboratory, La Paz University Hospital (IdiPAZ), Madrid, Spain; Medical Oncology, Infanta Sofía University Hospital, Madrid, Spain
| | | | - Paloma Cejas
- Translational Oncology Laboratory, La Paz University Hospital (IdiPAZ), Madrid, Spain
| | | | | | - Ricardo Ramos
- Genomic Service, Scientific Park of Madrid, Madrid, Spain
| | - Emilio Burgos
- Pathology Department, La Paz University Hospital (IdiPAZ), Madrid, Spain
| | - Cristina Aguayo
- Medical Oncology, La Paz University Hospital (IdiPAZ), Madrid, Spain
| | - Ana B Custodio
- Medical Oncology, La Paz University Hospital (IdiPAZ), Madrid, Spain
| | - Guillermo Reglero
- IMDEA-Food Institute, CEI UAM+CSIC, Madrid, Spain; Food Research Institute (CIAL) CEI UAM+CSIC, Madrid, Spain
| | - Jaime Feliu
- Medical Oncology, La Paz University Hospital (IdiPAZ), Madrid, Spain
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Domingos PLB, Farias LC, Pereira CS, das Graças Pena G, Reis TC, Silva RRV, Fraga CADC, de Souza MG, Soares MB, Jones KM, Menezes EV, Nobre SAM, Rodrigues Neto JF, de Paula AMB, Velásquez-Meléndez JG, Sena Guimarães AL. Leptin receptor polymorphism Gln223Arg (rs1137101) in oral squamous cell carcinoma and potentially malignant oral lesions. SPRINGERPLUS 2014; 3:683. [PMID: 26034683 PMCID: PMC4447719 DOI: 10.1186/2193-1801-3-683] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 11/11/2014] [Indexed: 12/31/2022]
Abstract
The purpose of this study was to assess the LEPR gene Gln223Arg polymorphism (rs1137101) in oral squamous cell carcinoma (OSCC) and in potentially malignant oral lesions (PMOL) in comparison to normal oral mucosa in a Brazilian population. Smokers (n = 89) were selected from a representative sample of 471 individuals from the general population of Montes Claros, Brazil. Participants were age and gender matched to patients with OSCC (n = 25) and oral epithelial dysplasia (n = 25). We investigated the LEPR Gln223Arg polymorphism (A>G; rs1137101) in these groups. Genotype variants were assessed by RFLP-PCR, using MspI (HPAII) restriction endonuclease. The institutional review board of the Universidade Estadual de Montes Claros approved the study (process number 2667/2011). Written informed consent for this study was obtained from all participants. The GG genotype (Arg223Arg) appears to be the more relevant polymorphic variant in OSCC. It occurred, approximately, twice as frequently in OSCC patients than in the general population. In contrast, the A allele in its homozygosis form (Gln223Gln) is significantly associated with the development of PMOL; 80% of the samples from the PMOL group exhibit AA genotype. Our findings suggest new insights regarding LEPR gene variations in the development of OSCC and PMOL.
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Affiliation(s)
| | - Lucyana Conceição Farias
- Department of Dentistry, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais Brazil
| | - Camila Santos Pereira
- Department of Dentistry, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais Brazil
| | | | - Tatiana Carvalho Reis
- Department of Dentistry, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais Brazil
| | | | | | | | - Mariana Batista Soares
- Department of Dentistry, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais Brazil
| | - Kimberly Marie Jones
- Dean of Research, Associação Educativa do Brasil (SOEBRAS), Montes Claros, Minas Gerais Brazil
| | - Elytania Veiga Menezes
- Department of Biology, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais Brazil
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Genetic variability in energy balance and pancreatic cancer risk in a population-based case-control study in Minnesota. Pancreas 2014; 43:281-6. [PMID: 24201779 PMCID: PMC3945710 DOI: 10.1097/mpa.0b013e3182a7c829] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Accumulating evidence suggests that energy imbalance plays a role in pancreatic carcinogenesis. However, it remains unclear whether single-nucleotide polymorphisms (SNPs) in genes regulating energy homeostasis influence pancreatic cancer risk. We investigated this question in a case-control study conducted from 1994 to 1998. METHODS Patients (n = 173) were ascertained from hospitals in the Twin Cities and Mayo Clinic, Minnesota. Control subjects (n = 476) were identified from the general population and frequency matched to patients by age and sex. Seven SNPs were evaluated in relation to pancreatic cancer using unconditional logistic regression. RESULTS After adjustment for confounders, the leucine/proline or proline/proline genotype of the neuropeptide Y (NPY) gene rs16139 was associated with a lower risk than the leucine/leucine genotype (odds ratio, 0.40 [95% confidence interval, 0.15-0.91]). Conversely, an increased risk was observed for the glycine/arginine or arginine/arginine genotype of the adrenoceptor β2, surface (ADRB2) gene rs1042713 as compared with the glycine/glycine genotype (odds ratio, 1.52 [95% confidence interval, 1.01-2.31]). CONCLUSIONS This study first reveals that SNPs in genes modulating energy intake (NPY) and energy expenditure (ADRB2) altered pancreatic cancer risk. If confirmed by other studies, our findings may shed new light on the etiology and prevention of pancreatic cancer.
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The Association between Leptin Level and Breast Cancer: A Meta-Analysis. PLoS One 2013; 8:e67349. [PMID: 23826274 PMCID: PMC3694967 DOI: 10.1371/journal.pone.0067349] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Accepted: 05/16/2013] [Indexed: 12/24/2022] Open
Abstract
Background Contradictory results have been reported regarding the association between leptin level and breast cancer. Therefore, a meta-analysis was performed to investigate this issue. Methods Published literature from PubMed and the Chinese National Knowledge Infrastructure (CNKI) Database was retrieved. This study was performed based on different cases and control groups. The combined effect () with 95% confidence interval (CI) was calculated using fixed-effects or random-effects model analysis. Results Overall, the mean serum leptin level of case groups was significantly higher than that of control groups. A) For 9 studies comparing breast cancer cases and healthy controls the combined effect was 0.58 with 95% CI (0.48, 0.68). B) For 4 studies comparing premenopausal breast cancer cases and healthy controls the was 0.32 (0.12, 0.52). C) For 5 studies comparing postmenopausal cases and healthy controls the was 0.65 (0.46, 0.84). D) For 4 studies comparing breast cancer cases and breast benign controls the was 0.38 (0.17, 0.59). E) For 2 studies comparing premenopausal breast cancer cases and breast benign controls the was 0.33 (-0.25, 0.91). F) For 6 studies comparing postmenopausal breast cancer cases and breast benign controls the was 0.39 (0.19, 0.60). G) For 4 studies comparing lymph node metastasis positive cases and negative controls the was 0.72 (0.45, 1.00). H) For 3 studies comparing breast benign cases and healthy controls the was 0.71 (0.41, 1.01). Conclusion This meta-analysis suggests that leptin level plays a role in breast cancer and has potential for development as a diagnostic tool.
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Qin K, Wu C, Wu X. Two nonsynonymous polymorphisms (F31I and V57I) of the STK15 gene and breast cancer risk: a meta-analysis based on 5966 cases and 7609 controls. J Int Med Res 2013; 41:956-63. [PMID: 23803310 DOI: 10.1177/0300060513490087] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES This meta-analysis examined the relationship between two nonsynonymous polymorphisms (F31I and V57I) of the aurora kinase A (STK15) gene and breast cancer risk. METHODS A systematic search of the PubMed® and EMBASE™ databases was undertaken to identify case-control studies that investigated the relationship between STK15 gene polymorphisms and breast cancer risk. RESULTS This meta-analysis included seven case-control studies (5966 breast cancer cases; 7609 controls). Combined results, based on all seven studies, showed that breast cancer cases had a significantly higher frequency of the 31 Ile/Ile genotype. In a subgroup analysis by race, breast cancer cases had a significantly higher frequency of the 31 Ile/Ile genotype in Asians and Caucasians. Combined results, based on four studies, suggested that the STK15 V57I gene polymorphism was unlikely to be associated with breast cancer risk in either Asians or Caucasians. CONCLUSIONS The present meta-analysis suggests that the STK15 F31I polymorphism is a strong predisposing risk factor for breast cancer, but no significant association existed between the STK15 V57I polymorphism and the risk of breast cancer.
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Affiliation(s)
- Kai Qin
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
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He J, Xu G. LEP gene variant is associated with prostate cancer but not with colorectal cancer. Tumour Biol 2013; 34:3131-6. [PMID: 23754448 DOI: 10.1007/s13277-013-0881-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 05/22/2013] [Indexed: 01/24/2023] Open
Abstract
The leptin (LEP) gene has been considered to be implicated in the development of cancer. However, the results have been inconsistent. In this study, we performed a meta-analysis to clarify the association of LEP rs7799039 variant with colorectal and prostate cancer risk. Published literatures from PubMed and Embase were retrieved. Pooled odds ratio (OR) with 95 % confidence interval (CI) was calculated using fixed or random effects model. A total of five studies (2,596 colorectal cancer cases and 3,240 controls) for association of LEP rs7799039 variant with colorectal cancer, and three studies (1,343 prostate cancer cases and 1,238 controls) for association with prostate cancer were included in the meta-analysis. For colorectal cancer, there was no significant association of LEP rs7799039 variant with this disease under homogeneous co-dominant model (OR = 0.88, 95 % CI = 0.75-1.02), heterogeneous co-dominant model (OR = 1.00, 95 % CI = 0.89-1.13) and dominant model (OR = 0.97, 95 % CI = 0.87-1.08); however, there was a marginal association under recessive model (OR = 0.87, 95 % CI = 0.76-0.99). For prostate cancer, there was significant association of LEP rs7799039 variant with this disease under homogeneous co-dominant model (OR = 1.33, 95 % CI = 1.06-1.67) and recessive model (OR = 1.26, 95 % CI = 1.05-1.51), but not under heterogeneous co-dominant model (OR = 1.24, 95 % CI = 0.87-1.77) and dominant model (OR = 1.30, 95 % CI = 1.84). The present meta-analysis demonstrated that the LEP rs7799039 variant was associated with prostate cancer, but not with colorectal cancer.
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Affiliation(s)
- Juan He
- Department of Pharmacy, Kunming General Hospital of Chengdu Military Command, Kunming, 650032, China
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Need for clarification of data in a recent meta-analysis about polymorphisms in the leptin receptor gene and risk of breast cancer. Breast Cancer Res Treat 2013; 138:655-6. [PMID: 23508764 DOI: 10.1007/s10549-013-2481-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 03/07/2013] [Indexed: 12/16/2022]
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