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Dong X, Zou M, Li C, Luo H, Zhu S, Gong Z. Leptin receptor Gln223Arg and Lys109Arg polymorphisms may be associated with HBV-related hepatocellular carcinoma risk: A system review and meta-analysis. ENVIRONMENTAL TOXICOLOGY 2024. [PMID: 38634192 DOI: 10.1002/tox.24286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 03/22/2024] [Accepted: 03/31/2024] [Indexed: 04/19/2024]
Abstract
Increasing evidence has suggested a strong association of hepatocellular carcinoma (HCC) susceptibility and Gln223Arg (rs1137101) and Lys109Arg (rs1137100) polymorphisms in leptin receptor (LEPR) genes. To provide a quantitative assessment for such correlation, we reviewed all related systems and conducted meta-analysis for case and control researches. A literature search of Web of Science, EMBASE, PubMed, Scopus as well as China National Knowledge Infrastructure databases was collected. 95% confidence intervals (95% CIs) together with odds ratios (ORs) were calculated. Five case-control researches consisting of 1323 cases and 1919 control cases were incorporated into meta-analysis. Researches indicated A-allelic and AA genotype of rs1137101 were substantially related to boosted susceptibility of hepatitis B virus (HBV)-related HCC (mutant model, OR = 1.81, 95% CI = 1.36-2.41, p < .001; allelic model, OR = 1.55, 95% CI = 1.32-1.83, p < .001). On the contrary, we observed GG genotype of rs1137101 substantially related to reduced risk of HBV-related HCC (wild model, OR 0.59, 95%CI = 0.46-0.75, p < .001). We observed AA genotype of rs1137100 relevant to boosted HCC risk (mutant model, OR = 1.51, 95%CI = 1.14-2.01, p = .005) as well as in those with HBV-related HCCs (homozygous model, OR = 2.12, 95%CI = 1.49-3.02, p < .001; mutant model, OR = 1.67, 95%CI = 1.23-2.26, p = .001). G-allele and AA genotype of rs1137101 might be in connection with boosted HBV-related HCC susceptibility, and wild-type GG genotype might prevent diseases. AA genotype of rs1137100 might also improve HBV-related HCC susceptibility. Such conclusions ought to be validated by larger and better-designed researches.
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Affiliation(s)
- Xiaofeng Dong
- Department of Hepatobiliary, Pancreas and Spleen Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning, China
| | - Mengjie Zou
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning, China
| | - Chunxing Li
- Department of Operating Room, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning, China
| | - Honglin Luo
- Institute of Oncology, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning, China
| | - Shaoliang Zhu
- Department of Hepatobiliary, Pancreas and Spleen Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning, China
| | - Zheng Gong
- Department of Anesthesiology, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning, China
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Tang W, Wang J, Dai T, Qiu H, Liu C, Chen S, Hu Z. Association of leptin receptor polymorphisms with susceptibility of non-small cell lung cancer: Evidence from 2249 subjects. Cancer Med 2024; 13:e7178. [PMID: 38659416 PMCID: PMC11043686 DOI: 10.1002/cam4.7178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 03/20/2024] [Accepted: 03/28/2024] [Indexed: 04/26/2024] Open
Abstract
Non-small cell lung cancer (NSCLC) is increasing dramatically. It is believed that energy metabolism-related genes could play an important role in etiology of NSCLC. In this study, we sought to assess the correlation between three LEPR single nucleotide polymorphisms (rs1137101, rs1137100 and rs6588147) with NSCLS susceptibility. In total, 1193 NSCLC cases and 1056 controls were included. SNPscan™ genotyping method was used to analyze the genotypes of LEPR polymorphisms. Compared to rs6588147 GG in LEPR gene, this study identified a protective role of LEPR rs6588147 GA and GA/AA for the occurrence of NSCLC (GA vs. GG [p = 0.021] and GA/AA vs. GG [p = 0.030]). As well, we found that a protective role of LEPR rs6588147 for the occurrence of non-SCC subgroup (p < 0.05). By logistic regression analysis, we found that the rs6588147 A allele related genotypes might play a protective role for the occurrence of NSCLC in drinking, BMI ≥24 kg/m2, smoking and male subgroups. We also found that the rs1137101 A allele related genotypes played a protective role for the occurrence of NSCLC in male, younger participants (under 59 years) and overweight/obesity (BMI ≥24 kg/m2) subgroups. We found that LEPR Ars1037100Ars1037101Ars6588147 haplotype might play a protective role for the occurrence of NSCLC (p = 0.013). In addition, our findings indicated that LEPR rs1137100 G>A SNP might increase the risk of lymph node metastases (p = 0.038). This study highlights that LEPR rs6588147, rs1137101 genotypes and LEPR Ars1037100Ars1037101Ars6588147 haplotype are correlated with the occurrence of NSCLC. LEPR rs1137100 G>A SNP increases the risk of lymph node metastases.
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Affiliation(s)
- Weifeng Tang
- Departments of Esophageal Surgery and Thoracic SurgeryNanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical SchoolNanjing210008Jiangsu ProvinceChina
| | - Jian Wang
- Department of Cardiothoracic SurgeryAffiliated Yixing People's Hospital of Jiangsu UniversityYixingJiangsu ProvinceChina
| | - Ting Dai
- Department of PharmacyAffiliated Yixing People's Hospital of Jiangsu UniversityYixingJiangsu ProvinceChina
| | - Hao Qiu
- Department of Laboratory Medicine, School of MedicineJiangsu UniversityZhenjiangJiangsu ProvinceChina
| | - Chao Liu
- Department of Cardiothoracic SurgeryAffiliated People's Hospital of Jiangsu UniversityZhenjiangJiangsu ProvinceChina
| | - Shuchen Chen
- Department of Thoracic SurgeryFujian Medical University Union HospitalFuzhouFujian ProvinceChina
| | - Zhendong Hu
- Departments of Esophageal Surgery and Thoracic SurgeryNanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical SchoolNanjing210008Jiangsu ProvinceChina
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Wang Y, Meng F, Wu J, Long H, Li J, Wu Z, He H, Wang H, Wang N, Xie D. Associations between adipokines gene polymorphisms and knee osteoarthritis: a meta-analysis. BMC Musculoskelet Disord 2022; 23:166. [PMID: 35193537 PMCID: PMC8864815 DOI: 10.1186/s12891-022-05111-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 02/10/2022] [Indexed: 02/06/2023] Open
Abstract
Background Adipokines gene polymorphisms are speculated to be associated with the risk of knee osteoarthritis (OA), but evidence remains conflicting. This study therefore aimed to examine whether associations exist between adipokines gene polymorphisms and knee OA by considering the evidence collected from eligible studies through a meta-analysis. Methods A systematic search was performed on PubMed, Embase, Web of Science, China National Knowledge Infrastructure (CNKI), and Wanfang up to March 31, 2020. Meta-analysis was carried out by focusing on the associations between adipokines gene polymorphisms and knee OA with the allele model, dominant model, and recessive model. Results The present meta-analysis included 5 eligible studies for ADIPOQ rs1501299 with 1,021 cases and 1,097 controls, 3 eligible studies for ADIPOQ rs2241766 with 549 cases and 544 controls, 3 eligible studies for LEPR rs1137101 with 808 cases and 856 controls, 2 eligible studies for VISFATIN rs4730153 with 339 cases and 680 controls and 2 eligible studies for VISFATIN rs16872158 with 339 cases and 680 controls. Significant association was observed between LEPR rs1137101 and knee OA in the overall population (recessive: OR = 0.40, 95% CI 0.21–0.79). Limited data revealed that associations may exist between ADIPOQ rs2241766 and knee OA in Asians (dominant: OR = 1.35, 95% CI 1.03–1.78), between VISFATIN rs4730153 and knee OA in Asians (allele: OR = 0.58, 95% CI 0.41–0.83; dominant: OR = 0.57, 95% CI 0.39–0.83), and between VISFATIN rs16872158 and knee OA in Asians (allele: OR = 1.84, 95% CI 1.26–2.68; dominant: OR = 1.94, 95% CI 1.31–2.89). Conclusions Adipokines gene polymorphisms may be associated with knee OA. The association was observed in LEPR rs1137101 in the present study. In addition, limited data revealed that associations may also exist in ADIPOQ rs2241766, VISFATIN rs4730153 and VISFATIN rs16872158. Prospero registration CRD42020187664. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-022-05111-4.
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Affiliation(s)
- Yuqing Wang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fanqiang Meng
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jing Wu
- Hunan Key Laboratory of Joint Degeneration and Injury, Xiangya Hospital, Central South University, Changsha, China
| | - Huizhong Long
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiatian Li
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ziying Wu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hongyi He
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Haochen Wang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ning Wang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Dongxing Xie
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China. .,Hunan Key Laboratory of Joint Degeneration and Injury, Xiangya Hospital, Central South University, Changsha, China. .,Hunan Engineering Research Center for Osteoarthritis, Changsha, China. .,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
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4
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Wang J, Zhou F, Li F, Wang B, Hu Y, Li X. Autocrined leptin promotes proliferation of non-small cell lung cancer (NSCLC) via PI3K/AKT and p53 pathways. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:568. [PMID: 33987266 DOI: 10.21037/atm-20-7482] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background Circulating leptin can directly act on tumor cells. However, a recent meta-analysis showed that plasma leptin concentration had no significant effect on the survival of lung cancer patients. So does Leptin have an effect on lung cancer? Or there may be other factors that influence the effect. Methods Genome sequencing database Oncomine was searched to learn the differential expression of leptin between tumors and normal lungs. Fresh tumor specimens and paired normal lung tissue from six lung adenocarcinoma patients were collected, and validate the expression level of leptin. Clinicopathological information and tumor slices from 60 non-small cell lung cancer (NSCLC) patients were analyzed to evaluate the prognostic value of autocrined leptin. Whole genome sequencing data from the cancer genome atlas (TCGA) was analyzed to predict the underlying mechanism of leptin regulating tumor proliferation. Finally, these findings were confirmed by using cell lines H1299, A549, H460, and H322 to explore the promoting effect and mechanism of leptin on cell proliferation in vitro. Results Five datasets in Oncomine reported the expression of the LEP gene in NSCLC, and 4 datasets showed that leptin was up-regulated in tumors compared with normal lungs. Leptin was also overexpressed in 5 out of 6 clinical lung adenocarcinoma specimens. The analysis of the 60 NSCLC patients revealed that autocrined leptin could serve as an auxiliary prognostic factor, and a higher expression of leptin indicated a higher survival risk. Gene set enrichment analysis (GSEA) showed that the PI3K/AKT/mTOR signaling pathway was positively enriched when the LEP gene was highly expressed, while the P53 signaling pathway was negatively enriched. Leptin promoted cell cycle and clone formation in H1299 and A549 cells, up-regulation or down-regulation of leptin in these two cell lines led to enhanced or declined proliferation. Finally, it was confirmed that the PI3K/AKT/mTOR signaling pathway was positively regulated by leptin expression, while the P53 signaling pathway was negatively regulated. Conclusions Autocrined leptin was observed in majority of NSCLC tissue, which could serve as an auxiliary prognostic factor for NSCLC patients. Autocrined leptin had a promoting effect on the proliferation of NSCLC cells, which probably positively regulating the PI3K/AKT/mTOR signaling pathway and negatively regulate the P53 signaling pathway.
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Affiliation(s)
- Jin Wang
- Department of Immunology, Dalian Medical University, Dalian, China.,Department of Thoracic Surgery, the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Fachen Zhou
- Department of Thoracic Surgery, the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Fengzhou Li
- Department of Thoracic Surgery, the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Bing Wang
- Department of Immunology, Dalian Medical University, Dalian, China
| | - Yiying Hu
- Department of Neuroelectrophysiology, the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xia Li
- Department of Immunology, Dalian Medical University, Dalian, China
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Naseri R, Barzingarosi E, Sohrabi M, Alimoradi Y, Cheraghian Fard M, Jalili C. The Effect of Leptin Receptor Gene Polymorphisms (R223Q and P1019P) in Susceptibility to Polycystic Ovarian Syndrome in Kurdish Women. INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2021; 15:123-127. [PMID: 33687165 PMCID: PMC8052805 DOI: 10.22074/ijfs.2021.6197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 06/22/2020] [Indexed: 12/23/2022]
Abstract
Background Polycystic ovary syndrome (PCOS) is the known endocrinopathy disorder in the reproductive phase of women's life. More than half of the women with PCOS suffer from obesity which impacts the ovarian functions by leptin levels. Here the R223Q and P1019P polymorphisms of leptin receptor (LEPR) gene were examined in PCOS patients of Kurdish women from west of Iran. Materials and Methods In this case-control study, one hundred women with PCOS and 100 healthy women bearing similar age range were selected based on Rotterdam diagnostic criteria. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method was used to genotype polymorphisms LEPR (R223Q and P1019P), by respectively the BsaWI and NcoI restriction enzymes. Pearson's chi-square (χ2) test was used to analyze the variation in genetic distributions and unconditional logistic regression model was used to calculate the odds ratio (OR; 95% CI). Results Genotype frequencies of the R223Q and P1019P polymorphisms showed significant difference between the patients with PCOS compared to the controls. G allele (R223Q) reduced the risk of PCOS about 0.49-fold (P<0.001). While, T allele (P1019P) increased the risk of PCOS 2.69-fold (P<0.001). Conclusion It can be concluded that the R223Q and P1019P polymorphisms showed a significant association with PCOS susceptibility risk. It seems that G allele (R223Q) with reducing OR had a protective effect on this syndrome, while T allele (P1019P) with increasing OR was a risk factor for PCOS.
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Affiliation(s)
- Rozita Naseri
- Internal Medicine Department, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Elahe Barzingarosi
- Internal Medicine Department, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Maryam Sohrabi
- Fertility and Infertility Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Yosra Alimoradi
- Internal Medicine Department, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mostafa Cheraghian Fard
- Department of Anatomical Sciences, Medical School, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Cyrus Jalili
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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6
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Fadda SM, Abdelaleem EA, Mohamed RA, Mansour HM, Doudar NA. Is leptin receptor gene (Gln223Arg) polymorphism associated with disease susceptibility and severity in patients of primary knee osteoarthritis? THE EGYPTIAN RHEUMATOLOGIST 2020. [DOI: 10.1016/j.ejr.2019.04.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hung WC, Tsai CM, Lin CW, Chuang CY, Yang SF, Weng CJ. Leptin -2548 G/A polymorphisms are associated to clinical progression of oral cancer and sensitive to oral tumorization in nonsmoking population. J Cell Biochem 2019; 120:15145-15156. [PMID: 31021458 DOI: 10.1002/jcb.28776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/09/2019] [Accepted: 01/14/2019] [Indexed: 11/06/2022]
Abstract
Oral cancer is causally associated with environmental carcinogens, and the susceptibility to carcinogen-mediated tumorigenesis is proposed to be genotype-dependent. Leptin (LEP) and leptin receptor (LEPR) both play a crucial role in the mediation of physiological reactions and carcinogenesis and may serve as a candidate biomarker of oral cancer. The current case-control study aimed to examine the effects of LEP -2548 G/A (rs7799039), LEPR K109R (rs1137100), and LEPR Q223R (rs1137101) single-nucleotide polymorphisms (SNPs) with or without interacting to environmental carcinogens on the risk for oral squamous cell carcinoma. The SNPs of three genetic allele, from 567 patients with oral cancer and 560 healthy controls in Taiwan were analyzed. The results shown that the patients with polymorphic allele of LEP -2548 have a significant low risk for the development of clinical stage (A/G: adjusted odds ratio [AOR] = 0.670, 95% confidence interval [CI] = 0.454-0.988, P < 0.05; A/G + G/G: AOR = 0.676, 95% CI = 0.467-0.978, P < 0.05) compared to patients with ancestral homozygous A/A genotype. In addition, an interesting result was found that the impact of LEP -2548 G/A SNP on oral carcinogenesis in subjects without tobacco consumption is higher than subjects with tobacco consumption. These results suggest that the genetic polymorphism of LEP -2548 G/A (rs7799039), LEPR K109R (rs1137100), and LEPR Q223R (rs1137101) were not associated to the susceptibility of oral cancer; SNP in LEP -2548 G/A showed a poor clinicopathological development of oral cancer; population without tobacco consumption and with polymorphic LEP -2548 G/A gene may significantly increase the risk to have oral cancer.
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Affiliation(s)
- Wei-Chen Hung
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Chiung-Man Tsai
- Chest Hospital, Ministry of Health and Welfare, Tainan, Taiwan
| | - Chiao-Wen Lin
- Institute of Oral Sciences, Chung Shan Medical University, Taichung, Taiwan.,Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chun-Yi Chuang
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Otolaryngology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chia-Jui Weng
- Department of Living Services Industry, Tainan University of Technology, Tainan, Taiwan
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8
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Anoushirvani AA, Aghabozorgi R, Ahmadi A, Arjomandzadegan M, Khalili S, Sahraei M, Fereydouni T, Khademi Z. The Relationship Between rs3212986C>A Polymorphism and Tumor Stage in Lung Cancer Patients. Cureus 2019; 11:e4423. [PMID: 31245210 PMCID: PMC6559387 DOI: 10.7759/cureus.4423] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Background The nucleotide excision repair (NER) system is one of the most important deoxyribonucleic acid (DNA) repair mechanisms and is critical for chemotherapy resistance. We conducted the present study to investigate the association between two polymorphisms of excision of repair cross-complementing group 1 (ERCC1), the key component of the NER pathway, and the clinicopathological features of patients with non-small cell lung cancer (NSCLC). Methods A total of 38 patients with confirmed NSCLC were included in our study. DNA was extracted from peripheral blood. ERCC1 rs3212986 (8092) and rs11615 (118) were genotyped using molecular assays including polymerase chain reaction (PCR) with restriction fragment length polymorphism (by MboII and HpyCH4 enzymes) and sequencing. Results The PCR results indicated the correct performance of the genomics extraction and molecular protocols. The distribution of C/C, C/A and A/A genotypes at position 8092 was 42.10%, 47.36%, and 10.52% respectively (P=0.03). Multivariate regression analysis showed that there was a significant correlation between C8092A (rs3212986) polymorphism and metastasis, grade of the tumor, and response to treatment. Individuals carrying the rs3212986 CA genotype and A allele had a significantly worse response to the treatment. Also, the correlation between alteration at this genomics location and patients with NSCLC who used to smoke cigarettes was positive. However, no significant association was detected between rs11615 C118>T polymorphism and demographic characteristics of patients with NSCLC. Conclusion We concluded that in lung cancer patients there is a relationship between tumor stage and rs3212986C>A polymorphism.
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Affiliation(s)
| | - Reza Aghabozorgi
- Internal Medicine, Arak University of Medical Sciences, Arak, IRN
| | - Azam Ahmadi
- Genetics, Arak University of Medical Sciences, Arak, IRN
| | | | - Sara Khalili
- Microbiology, Arak University of Medical Sciences, Arak, IRN
| | - Maryam Sahraei
- Genetics, Arak University of Medical Sciences, Arak, IRN
| | - Taha Fereydouni
- Internal Medicine, Arak University of Medical Sciences, Arak, IRN
| | - Zoha Khademi
- Internal Medicine, Arak University of Medical Sciences, Arak, IRN
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Xu M, Cao FL, Li N, Gao X, Su X, Jiang X. Leptin induces epithelial-to-mesenchymal transition via activation of the ERK signaling pathway in lung cancer cells. Oncol Lett 2018; 16:4782-4788. [PMID: 30250542 DOI: 10.3892/ol.2018.9230] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 06/28/2018] [Indexed: 01/02/2023] Open
Abstract
Previous studies revealed that leptin induces the growth and proliferation and inhibits the apoptosis of lung cancer cells. However, the effect of leptin on epithelial-to-mesenchymal transition (EMT) is not yet clear. In the present study, the effect of leptin on EMT was investigated as well as its underlying mechanisms in A549 cells. The ability of leptin to induce EMT was investigated by microscopic examination and western blotting. The impacts of leptin on cell migration, invasion and tumorigenesis were evaluated by wound healing, Transwell and colony formation assays, respectively. It was demonstrated that leptin induced EMT-associated morphological changes, namely a decrease in cell-cell contact and a more elongated morphological shape. Leptin decreased the expression levels of epithelial phenotype markers E-cadherin and keratin, increased the expression of mesenchymal phenotype marker Vimentin, and raised the expression of EMT-induced transcription factor ZEB-1. In addition, leptin activated the extracellular signal regulated kinase (ERK) signaling pathway and did not affect the activation of the protein kinase B signaling pathway in A549 cells. Leptin also promoted EMT-induced migration, invasion and tumorigenesis in vitro in A549 cells. The present study provides evidence that leptin induced EMT via the activation of the ERK signaling pathway and increased EMT-induced tumor phenotypes in lung cancer cells. These findings suggest that leptin may be a promising target for lung cancer treatment through the regulation of EMT.
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Affiliation(s)
- Min Xu
- Department of Nephrology, The 88th Hospital of People's Liberation Army, Taian, Shandong 271000, P.R. China
| | - Fa-Le Cao
- Department of Neurology, The 88th Hospital of People's Liberation Army, Taian, Shandong 271000, P.R. China
| | - Naiyi Li
- Department of Medical Service, The 88th Hospital of People's Liberation Army, Taian, Shandong 271000, P.R. China
| | - Xin Gao
- Department of Nephrology, The 88th Hospital of People's Liberation Army, Taian, Shandong 271000, P.R. China
| | - Xuejia Su
- Department of Thoracic Surgery, The 88th Hospital of People's Liberation Army, Taian, Shandong 271000, P.R. China
| | - Xiaoling Jiang
- Department of Pathology, The 88th Hospital of People's Liberation Army, Taian, Shandong 271000, P.R. China
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10
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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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11
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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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Yang J, Du H, Lv J, Zhang L. Association of rs1137101 polymorphism in LEPR and susceptibility to knee osteoarthritis in a Northwest Chinese Han population. BMC Musculoskelet Disord 2016; 17:311. [PMID: 27457563 PMCID: PMC4960800 DOI: 10.1186/s12891-016-1162-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 07/12/2016] [Indexed: 01/14/2023] Open
Abstract
Background Osteoarthritis (OA) is a complex arthritic condition in which the genetic factor plays a crucial role. A single nucleotide polymorphism (SNP), rs1137101 (Gln223Arg) of leptin receptor (LEPR) gene has been demonstrated to be associated with susceptibility to knee OA. However, this association in Chinese Han population has never been examined. The present study aimed to investigate whether Gln223Arg was related to knee OA susceptibility in a Northwest Chinese population with Han ethnicity. Methods Gln223Arg polymorphisms were genotyped in 587 patients with confirmed knee OA and in 628 age- and sex-matched healthy controls using polymerase chain reaction-restriction fragment length polymorphism analysis. Besides, LEPR genotypes were verified by direct DNA sequencing analysis on PCR products. Results The genotype and allele frequencies in LEPR SNP rs1137101 were significantly different between cases and control groups (chi-square = 6.52, P = 0.038 for genotype and chi-square = 5.06, P = 0.024 for allele frequencies; respectively). Rs1137101 was correlated with knee OA in the dominant genetic model (GG + GA versus AA) (P = 0.016) and a higher G allele frequency existed (P = 0.024) among all patients with knee OA and controls. On stratification analysis, the genotype GG and G allele were associated with susceptibility to knee OA in females, both young (≤65 years) and old groups (>65 years) and patients with mild knee OA. Conclusions Our finding suggested that the genetic variant of LEPR gene rs1137101 is independently related to knee OA susceptibility in Northwest Chinese population with Han ethnicity and may serve as a potential biomarker to determine risk of knee OA.
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Affiliation(s)
- Jianhui Yang
- Rehabilitation Center, First Affiliated Hospital of Xi'an Jiaotong University Health Science Center, No. 277, Yanta West Road, Xi'an, 710061, Shaanxi Province, People's Republic of China.
| | - Heng Du
- Department of Orthopedics, First Affiliated Hospital of Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi Province, People's Republic of China
| | - Jianguo Lv
- Rehabilitation Center, First Affiliated Hospital of Xi'an Jiaotong University Health Science Center, No. 277, Yanta West Road, Xi'an, 710061, Shaanxi Province, People's Republic of China
| | - Lianhe Zhang
- Department of Statistics, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi Province, People's Republic of China
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Liu Y, Chen SQ, Jing ZH, Hou X, Chen Y, Song XJ, Lv WS, Wang R, Wang YG. Association of LEPR Gln223Arg polymorphism with T2DM: A meta-analysis. Diabetes Res Clin Pract 2015; 109:e21-6. [PMID: 26094585 DOI: 10.1016/j.diabres.2015.05.042] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Revised: 05/14/2015] [Accepted: 05/21/2015] [Indexed: 12/21/2022]
Abstract
A meta-analysis was conducted to evaluate the association of LEPR Gln223Arg polymorphism with type 2diabetes (T2DM). Sixteen individual studies with 7827 subjects were included into the meta-analysis. Current studies suggest that LEPR Gln223Arg polymorphism may not affect the susceptibility with type 2diabetes (T2DM).
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Affiliation(s)
- Ying Liu
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao 266003, China
| | - Shu-Qin Chen
- Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Jiaotong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China# The two authors contribute equally to this work
| | - Zhao-Hai Jing
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao 266003, China
| | - Xu Hou
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao 266003, China.
| | - Ying Chen
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao 266003, China
| | - Xue-Jia Song
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao 266003, China
| | - Wen-Shan Lv
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao 266003, China
| | - Robin Wang
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao 266003, China
| | - Yan-Gang Wang
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao 266003, China.
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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: 9] [Impact Index Per Article: 1.0] [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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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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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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Liu PC, Yang YJ, Liu R, Huang CJ, Shu HX, Gong JP, Chen QC, Yang Y, Cai M. Lack of association between LEPR Lys656Asn or Ser343Ser polymorphisms and cancer susceptibility: A meta-analysis. Biomed Rep 2014; 2:849-854. [PMID: 25279158 DOI: 10.3892/br.2014.326] [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: 06/26/2014] [Accepted: 07/28/2014] [Indexed: 12/16/2022] Open
Abstract
Previous studies have shown conflicting results between the association of leptin receptor (LEPR) genetic polymorphisms and cancer risk. The frequent LEPR Lys656Asn or Ser343Ser genetic polymorphism has been demonstrated to be functional and may promote genetic susceptibility to cancers. However, the association between the LEPR Lys656Asn or Ser343Ser genetic polymorphism and cancer risk remains to be determined. To improve the understanding of the LEPR Lys656Asn or Ser343Ser genetic polymorphism role in global cancer, a comprehensive meta-analysis was conducted that comprised 2,480 cases and 3,162 controls. The LEPR Lys656Asn or Ser343Ser genetic polymorphism did not significantly affect the cancer risk. In the stratified analysis, there was no significant association of the LEPR Lys656Asn or Ser343Ser variants with any type of cancer under any model. In addition, significantly increased risks were found in the Asian population in heterozygous codominant [odds ratio (OR), 1.24 (1.01-1.53)] and dominant [OR, 1.24 (1.02-1.50)] genetic models. A significantly increased susceptibility to cancer was not found when stratified by study design. There were no significant differences found in genotype method and sample size in cases among the genotypes. These findings indicated a lack of association between LEPR Lys656Asn or Ser343Ser polymorphisms and cancer susceptibility, however, these polymorphisms may increase the cancer susceptibility among the Asian population, particularly in the dominant genetic model. The single-nucleotide polymorphism is also suggested to function as a dominant mutation, which requires verification or association with functional studies.
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Affiliation(s)
- Peng-Cheng Liu
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, P.R. China ; Department of First Clinical Medical College, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yun-Ji Yang
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, P.R. China
| | - Run Liu
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, P.R. China
| | - Chang-Jia Huang
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, P.R. China ; Medical Department, Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - He-Xi Shu
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, P.R. China ; Medical Department, Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Jin-Peng Gong
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, P.R. China ; Medical Department, Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Quan-Chi Chen
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, P.R. China ; Department of First Clinical Medical College, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yong Yang
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, P.R. China
| | - Ming Cai
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, P.R. China
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Unsal M, Kara N, Karakus N, Tural S, Elbistan M. Effects of leptin and leptin receptor gene polymorphisms on lung cancer. Tumour Biol 2014; 35:10231-6. [PMID: 25027400 DOI: 10.1007/s13277-014-2293-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 06/30/2014] [Indexed: 01/03/2023] Open
Abstract
Leptin (LEP), an adipocyte-derived cytokine, has been reported to participate in carcinogenesis. Elevated levels of systemic and pulmonary LEP are associated with diseases related to lung injury and lung cancer. The purpose of the present study was to investigate if the LEP and leptin receptor (LEPR) gene polymorphisms are associated with lung cancer in a cohort of Turkish population. One hundred and sixty-two lung cancer patients and 130 healthy controls were included in the study. The genotypes of LEP gene -2548G > A and LEPR gene Q223R polymorphisms were determined using polymerase chain reaction (PCR) based restriction fragment length polymorphism (RFLP) analysis. The genotype frequencies of LEP -2548G > A polymorphism showed statistically significant differences between lung cancer patients and controls (p = 0.007). GA + AA genotypes and A allele of LEP -2548G > A polymorphism was found to be susceptibility factors for lung cancer (p = 0.003, odds ratio (OR) 2.32, 95 % confidence interval (CI) 1.32-4.10; p = 0.003, OR 1.65, 95 % CI 1.18-2.29, respectively). The genotype and allele frequencies of LEPR Q223R polymorphism did not show any statistically significant differences between lung cancer patients and controls (p = 0.782 and p = 0.762, respectively). Although AA-QQ and AA-QR combined genotypes of LEP -2548G > A-LEPR Q223R loci were significantly higher in lung cancer patients (p = 0.020 and p = 0.047, respectively), GG-QQ, GG-QR, and AA-RR combined genotypes were significantly higher in control group. As a result, susceptibility effects of LEP -2548G > A polymorphism alone or in combination with LEPR Q223R polymorphism on lung cancer were observed. Further studies are necessary to prove the association of LEP and LEPR gene polymorphisms with lung cancer.
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Affiliation(s)
- Meftun Unsal
- Department of Thoracic Disease, Faculty of Medicine, Ondokuz Mayis University, Samsun, Turkey
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Wei T, Lu L, Shen Q, Fang C. [Advances of the relationship between leptin system and non-small cell lung cancer]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2014; 17:347-50. [PMID: 24758911 PMCID: PMC6000024 DOI: 10.3779/j.issn.1009-3419.2014.04.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
瘦素系统在肺部炎症反应、癌症发生发展等过程中发挥重要作用,但是其在肿瘤微环境中的作用机理、对肺癌的诊断价值仍不明晰。本文就瘦素系统与非小细胞肺癌之间的关系,从瘦素及其受体在循环和肿瘤组织中的表达变化、瘦素信号转导通路、瘦素与调节性T细胞的相互作用和瘦素及其受体的基因多态性等方面进行叙述,以期为非小细胞肺癌的诊治提供新方法。
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Affiliation(s)
- Tengfei Wei
- Department of Laboratory Diagnosis, Changhai Hospital, the Second Military Medical University, Shanghai 200433, China
| | - Longkun Lu
- Department of Laboratory Diagnosis, Changhai Hospital, the Second Military Medical University, Shanghai 200433, China
| | - Qian Shen
- Department of Laboratory Diagnosis, Changhai Hospital, the Second Military Medical University, Shanghai 200433, China
| | - Chaoping Fang
- Department of Laboratory Diagnosis, Changhai Hospital, the Second Military Medical University, Shanghai 200433, China
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Ntikoudi E, Kiagia M, Boura P, Syrigos KN. Hormones of adipose tissue and their biologic role in lung cancer. Cancer Treat Rev 2013; 40:22-30. [PMID: 23870486 DOI: 10.1016/j.ctrv.2013.06.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 05/27/2013] [Accepted: 06/23/2013] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Adipose tissue secretes numerous bioactive peptides, collectively termed "adipocytokines" or "adipokines". Adipokines act in a paracrine, autocrine, or endocrine manner and regulate several physiological and pathological processes. Increasing evidence indicates that adipokines are implicated also in several malignancies, including lung cancer as well. AIM The aim of this study is to summarize data concerning adipokines in lung cancer pathogenesis, prognosis and survival; the role of adipokines in lung cancer cachexia is also examined. MATERIALS AND METHODS A systematic literature search was performed in the electronic database of Medline. Several studies and review articles met the inclusion criteria. RESULTS Leptin and adiponectin are the best studied adipokines. The majority of the relevant studies has investigated the potential correlations mainly between leptin, adiponectin, and sometimes also resistin, and nutritional status, systemic inflammation of lung cancer or lung cancer cachexia and have also assessed their prognostic significance. Few other studies have studied genetic variations in leptin, leptin receptor and adiponectin genes and their association with lung cancer susceptibility and prognosis. The ongoing list of adipokines associated with lung cancer also includes resistin, chemerin, and visfatin. CONCLUSIONS Increasing evidence points to the involvement of certain adipocytokines in lung cancer development, progression and prognosis. No conclusive evidence exists so far with regards to the role of adipocytokines in lung cancer cachexia. Future, longitudinal studies are warranted in order to clarify the role of adipocytokines in lung cancer and also uncover adipocytokines as novel therapeutic targets.
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Affiliation(s)
- E Ntikoudi
- Oncology Unit, Third Department of Medicine, Athens University School of Medicine, Sotiria General Hospital, Building Z, 152 Mesogion Avenue, 115 27 Athens, Greece.
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22
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Li L, Lee KJ, Choi BC, Baek KH. Relationship between leptin receptor and polycystic ovary syndrome. Gene 2013; 527:71-4. [PMID: 23769971 DOI: 10.1016/j.gene.2013.05.074] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 05/10/2013] [Accepted: 05/24/2013] [Indexed: 10/26/2022]
Abstract
Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders, which is involved in the multi-system disease, and its etiology is still not clearly understood. It is currently considered that not only the genetic factors but also the environment factors play a crucial role in the pathogenesis of PCOS. Obesity plays an important role through the insulin, leptin and endocannabinoid system in the pathological process of PCOS, leading to more severe clinical manifestations. The aim of our present study is to investigate whether there is association between single nucleotide polymorphisms (SNPs) of Gln223Arg and Pro1019Pro in the leptin receptor gene (LEPR) and PCOS in a Korean population. Interestingly, a significant association was found between the Pro1019Pro in LEPR gene and PCOS, and a highly significant association was found between the Gln223Arg in LEPR gene and PCOS (P=0.033, OR=1.523, 95% confidence interval and P<0.0001, OR=0.446, 95% confidence interval). Moreover, genotype combination and haplotype analyses indicate that Gln223Arg and Pro1019Pro polymorphisms of LEPR are significantly associated with the risk of PCOS.
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Affiliation(s)
- Lan Li
- Department of Biomedical Science, CHA University, Bundang CHA Hospital, 502 Yatap-Dong, Bundang-Gu, Seongnam-Si, Gyeonggi-Do 463-840, Republic of Korea
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Li Z, Yuan W, Ning S, Li J, Zhai W, Zhang S. Role of leptin receptor (LEPR) gene polymorphisms and haplotypes in susceptibility to hepatocellular carcinoma in subjects with chronic hepatitis B virus infection. Mol Diagn Ther 2013; 16:383-8. [PMID: 23090836 DOI: 10.1007/s40291-012-0008-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
AIM The reported association of the leptin receptor (LEPR) protein with hepatocellular carcinoma (HCC) carcinogenesis prompted us to evaluate whether genetic polymorphisms of the LEPR gene affect susceptibility to HCC and its clinicopathologic characteristics. METHODS A total of 417 subjects who were diagnosed with HCC and 551 age- and sex-matched subjects without HCC were enrolled in this study. All subjects had chronic hepatitis B virus (HBV) infection. Three single nucleotide polymorphisms (SNPs) of the LEPR gene were determined. RESULTS The genotype frequencies of Lys109Arg and Gln223Arg differed significantly between HCC and non-HCC subjects (both p < 0.001). For the Lys109Arg polymorphism, HCC subjects had a higher prevalence of 109Arg/Arg than non-HCC subjects. The 109Arg/Arg carriers had a significantly higher adjusted risk of HCC than the 109Lys/Lys carriers. For the Gln223Arg polymorphism, subjects with the 223Arg/Arg genotype had a significantly higher risk of HCC than those with the 223Gln/Gln genotype. The Lys656Asn SNP did not affect the HCC risk. Haplotype analyses showed that subjects with 109Lys-656Lys-223Arg and 109Arg-656Asn-223Arg haplotypes had an increased HCC risk, while the 109Lys-656Lys-223Gln and 109Lys-656Asn-223Gln haplotypes had protective effects against HCC development. None of these polymorphisms were related to the clinicopathologic features of HCC. CONCLUSION The Lys109Arg and Gln223Arg polymorphisms of the LEPR gene are associated with susceptibility to HCC but not with its clinicopathologic features. These polymorphisms may represent genetic markers for the risk of HCC in the context of chronic HBV infection.
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Affiliation(s)
- Zhen Li
- Department of General Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
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Liu L, Zhong R, Wei S, Xiang H, Chen J, Xie D, Yin J, Zou L, Sun J, Chen W, Miao X, Nie S. The leptin gene family and colorectal cancer: interaction with smoking behavior and family history of cancer. PLoS One 2013; 8:e60777. [PMID: 23593308 PMCID: PMC3620466 DOI: 10.1371/journal.pone.0060777] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Accepted: 03/02/2013] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Pathologic condition associated with metabolic syndrome traits seems to increase the risk of colorectal cancer. One mechanism underlying this relationship may involve the growth-promoting effects of the circulation hormones associated with obesity and insulin resistance, such as leptin. METHODOLOGY/PRINCIPAL FINDINGS A two-stage case-control study was used to explore the role of polymorphisms of Leptin (LEP) and Leptin receptor (LEPR), either alone or in combination with environmental factors in colorectal carcinogenesis. In stage 1, 20 single nucleotide polymorphisms (SNPs) that tag common SNPs in these two genes were genotyped among 470 cases and 458 controls. In stage 2, another population with 314 cases and 355 controls were genotyped for the two most promising SNPs from stage 1. LEPR rs12037879 only presented modestly increased colorectal cancer risk, with odds ratios of 1.41 (95% confidence interval [CI] 1.13-1.76) and 1.74 (95%CI 1.08-2.81) for GA and AA genotype when compared with GG genotype in combined population. Smokers carrying LEPR rs12037879 A allele presented 1.67-fold (95%CI 1.39-fold to 2.01-fold) increased colorectal cancer risk when compared with non-smokers carrying GG genotype in combined analysis. Individuals with family history of cancer harboring LEPR rs12037879 A allele showed 1.52-fold (95%CI: 1.24-fold to 1.86-fold) increased colorectal cancer risk, compared with individuals without family history of cancer harboring GG genotype. Multifactor gene-environment interaction analysis revealed significant interactions among LEPR rs12037879, LEPR rs6690625, smoking status and family history of cancer, exhibiting a gradient of increased colorectal cancer risk along with the increasing number of risk factors (P = 9.82 × 10(-10)). CONCLUSIONS/SIGNIFICANCE Our research supports that polymorphisms in LEPR may be associated with marginal increase in the risk for colorectal cancer. Moreover, this association could be strengthened by cigarette smoking and family history of cancer.
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Affiliation(s)
- Li Liu
- Department of Epidemiology and Biostatistics, and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Rong Zhong
- Department of Epidemiology and Biostatistics, and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Sheng Wei
- Department of Epidemiology and Biostatistics, and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hao Xiang
- Department of Epidemiology and Biostatistics, School of Public Health, Wuhan University, Wuhan, Hubei, China
| | - Jigui Chen
- Department of Surgery, The Eighth Hospital of Wuhan, Wuhan, Hubei, China
| | - Duoshuang Xie
- Department of Infection Control, Taihe Hospital, Yunyang Medical College, Shiyan, Hubei, China
| | - Jieyun Yin
- Department of Epidemiology and Biostatistics, and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Li Zou
- Department of Epidemiology and Biostatistics, and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jingwen Sun
- Department of Epidemiology and Biostatistics, and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wei Chen
- Department of Epidemiology and Biostatistics, and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiaoping Miao
- Department of Epidemiology and Biostatistics, and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shaofa Nie
- Department of Epidemiology and Biostatistics, and the Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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He J, Xi B, Ruiter R, Shi TY, Zhu ML, Wang MY, Li QX, Zhou XY, Qiu LX, Wei QY. Association of LEP G2548A and LEPR Q223R polymorphisms with cancer susceptibility: evidence from a meta-analysis. PLoS One 2013; 8:e75135. [PMID: 24146750 PMCID: PMC3798550 DOI: 10.1371/journal.pone.0075135] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Accepted: 08/12/2013] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Numerous epidemiological studies have examined associations of genetic variations in LEP (G2548A, -2548 nucleotide upstream of the ATG start site) and LEPR (Q223R, nonsynonymous SNP in exon 6) with cancer susceptibility; however, the findings are inconsistent. Therefore, we performed a meta-analysis to comprehensively evaluate such associations. METHODS We searched published literature from MEDLINE, EMBASE, Web of Science and CBM for eligible publications. We also assessed genotype-based mRNA expression data from HapMap for rs7799039 (G2548A) and rs1137101 (Q223R) in normal cell lines derived from 270 subjects with different ethnicities. RESULTS The final analysis included 16 published studies of 6569 cases and 8405 controls for the LEP G2548A and 19 studies of 7504 cases and 9581 controls for the LEPR Q223R. Overall, LEP G2548A was statistically significantly associated with an increased risk of overall cancer (AA vs. GG: OR=1.27, 95% CI=1.05-1.54; recessive model: OR=1.19, 95% CI=1.00-1.41). Further stratifications by cancer type showed an increased risk for prostate cancer (recessive model: OR=1.26, 95% CI=1.05-1.51) but not for other cancers. For LEPR Q223R, no statistical evidence for an association with risk of cancer was found for all; however, further stratification by ethnicity showed an increased risk for Africans but not for other ethnicities. No significantly differences in LEP and LEPR mRNA expression were found among genotypes or by ethnicity. CONCLUSIONS Despite some limitations, this meta-analysis found some statistical evidence for an association between the LEP 2548AA genotype and overall risk of cancer, particularly for prostate cancer, but given this variant did not have an effect on mRNA expression, this association warrants additional validation in large and well-designed studies.
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Affiliation(s)
- Jing He
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Bo Xi
- Institute of Maternal and Child Health Care, School of Public Health, Shandong University, Jinan, China
| | - Rikje Ruiter
- Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands
| | - Ting-Yan Shi
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Mei-Ling Zhu
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Meng-Yun Wang
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qiao-Xin Li
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xiao-Yan Zhou
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Li-Xin Qiu
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- * E-mail: (LXQ); (QYW)
| | - Qing-Yi Wei
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
- * E-mail: (LXQ); (QYW)
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Fang X, Netzer M, Baumgartner C, Bai C, Wang X. Genetic network and gene set enrichment analysis to identify biomarkers related to cigarette smoking and lung cancer. Cancer Treat Rev 2012; 39:77-88. [PMID: 22789435 DOI: 10.1016/j.ctrv.2012.06.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 06/03/2012] [Accepted: 06/06/2012] [Indexed: 10/28/2022]
Abstract
OBJECTIVES Cigarette smoking is the most demonstrated risk factor for the development of lung cancer, while the related genetic mechanisms are still unclear. METHODS The preprocessed microarray expression dataset was downloaded from Gene Expression Omnibus database. Samples were classified according to the disease state, stage and smoking state. A new computational strategy was applied for the identification and biological interpretation of new candidate genes in lung cancer and smoking by coupling a network-based approach with gene set enrichment analysis. MEASUREMENTS Network analysis was performed by pair-wise comparison according to the disease states (tumor or normal), smoking states (current smokers or nonsmokers or former smokers), or the disease stage (stages I-IV). The most activated metabolic pathways were identified by gene set enrichment analysis. RESULTS Panels of top ranked gene candidates in smoking or cancer development were identified, including genes involved in cell proliferation and drug metabolism like cytochrome P450 and WW domain containing transcription regulator 1. Semaphorin 5A and protein phosphatase 1F are the common genes represented as major hubs in both the smoking and cancer related network. Six pathways, e.g. cell cycle, DNA replication, RNA transport, protein processing in endoplasmic reticulum, vascular smooth muscle contraction and endocytosis were commonly involved in smoking and lung cancer when comparing the top ten selected pathways. CONCLUSION New approach of bioinformatics for biomarker identification and validation can probe into deep genetic relationships between cigarette smoking and lung cancer. Our studies indicate that disease-specific network biomarkers, interaction between genes/proteins, or cross-talking of pathways provide more specific values for the development of precision therapies for lung.
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Affiliation(s)
- Xiaocong Fang
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.
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