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Galadima M, Teles M, Pastor J, Hernández-Losa J, Rodríguez-Gil JE, Rivera del Alamo MM. Programmed Death-Ligand (PD-L1), Epidermal Growth Factor (EGF), Relaxin, and Matrix Metalloproteinase-3 (MMP3): Potential Biomarkers of Malignancy in Canine Mammary Neoplasia. Int J Mol Sci 2024; 25:1170. [PMID: 38256245 PMCID: PMC10816983 DOI: 10.3390/ijms25021170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/08/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
Gene expression has been suggested as a putative tool for prognosis and diagnosis in canine mammary neoplasia (CMNs). In the present study, 58 formalin-fixed paraffin-embedded (FFPE) paraffined canine mammary neoplasias from 27 different bitches were included. Thirty-seven tumours were classified as benign, whereas thirty-one were classified as different types of canine carcinoma. In addition, mammary samples from three healthy bitches were also included. The gene expression for vascular endothelial growth factor-α (VEGFα), CD20, progesterone receptor (PGR), hyaluronidase-1 (HYAL-1), programmed death-ligand 1 (PD-L1), epidermal growth factor (EGF), relaxin (RLN2), and matrix metalloproteinase-3 (MMP3) was assessed through RT-qPCR. All the assessed genes yielded a higher expression in neoplastic mammary tissue than in healthy tissue. All the evaluated genes were overexpressed in neoplastic mammary tissue, suggesting a role in the process of tumorigenesis. Moreover, PD-L1, EGF, relaxin, and MMP3 were significantly overexpressed in malignant CMNs compared to benign CMNs, suggesting they may be useful as malignancy biomarkers.
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Affiliation(s)
- Makchit Galadima
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (M.G.); (J.P.); (J.E.R.-G.)
| | - Mariana Teles
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - Josep Pastor
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (M.G.); (J.P.); (J.E.R.-G.)
| | - Javier Hernández-Losa
- Department of Pathology, Hospital Universitari Vall d’Hebron, VHIR, 08035 Barcelona, Spain;
| | - Joan Enric Rodríguez-Gil
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (M.G.); (J.P.); (J.E.R.-G.)
| | - Maria Montserrat Rivera del Alamo
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (M.G.); (J.P.); (J.E.R.-G.)
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Genetic polymorphisms as non-modifiable susceptibility factors to laryngeal cancer. Biosci Rep 2021; 40:222773. [PMID: 32338278 PMCID: PMC7201556 DOI: 10.1042/bsr20191188] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 04/07/2020] [Accepted: 04/16/2020] [Indexed: 01/22/2023] Open
Abstract
Laryngeal squamous cell carcinoma (LSCC) is a highly disabling disease to the patient, affecting speech, swallowing and respiratory skills. Smoking and alcohol abuse are principal risk factors linked to this disease. Genetic factors can be involved in carcinogenesis by controlling the cell cycle, cell survival, angiogenesis, and invasiveness. Single nucleotide polymorphisms (SNPs) involving specific genes could modulate the risk of LSCC related to known carcinogens by modifying cellular responses, but not all genetic associations are known. In a case–control study, we assess the associations between cyclooxygenase-2 (COX2), epidermal growth factor (EGF), EGF receptor (EGFR), and tumor suppressor P53 SNPs on the risk of LSCC development in the Chilean population. A total of 85 LSCC patients and 95 healthy volunteers were recruited. SNPs genotype were analyzed from genomic DNA by Polymerase Chain Reaction (PCR)-Restriction Fragment Length Polymorphism (RFLP) and associations were estimated by odds ratios (ORs) using unconditional logistic regressions. A significant association between COX2 and TP53 SNP and LSCC risk was found, with an OR = 3.27 for COX2 c.-1329A>G (rs689466) SNP, and an OR = 1.94 for TP53 c.215C>G, Pro72Arg (rs1042522) SNP. These findings suggest that COX2 c.-1329A>G and TP53 c.215C>G (Pro72Arg) SNPs may be risk factors for LSCC. Through this research, we identify two low penetrance genetic variants that may be evaluated as novel biomarkers for this disease, in South American Mestizo populations.
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Tian J, Liu C, Liu G, Zuo C, Chen H. Cumulative evidence for association between genetic polymorphisms and esophageal cancer susceptibility: A review with evidence from meta-analysis and genome-wide association studies. Cancer Med 2019; 8:1289-1305. [PMID: 30793520 PMCID: PMC6434199 DOI: 10.1002/cam4.1972] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 11/27/2018] [Accepted: 12/21/2018] [Indexed: 12/16/2022] Open
Abstract
An increasing number of publications had reported the association between single‐nucleotide polymorphisms (SNPs) and esophageal cancer (EC) risk in the past decades. Results from these publications were controversial. We used PubMed, Medline, and Web of Science to identify meta‐analysis articles published before 30 July 2018, that summarize a comprehensive investigation for cumulative evidence of genetic polymorphisms of EC and its subtype risk. Two methods, Venice criteria and false‐positive report probability (FPRP) tests, were used to assess cumulative evidence of significant associations. At last, 107 meta‐analyses were considered to be in conformity with the inclusion criteria, yielding 51 variants associated with EC or esophageal squamous cell carcinoma (ESCC). Thirty‐eight variants were considered to be nominally significant associated with risk of EC or ESCC, whereas the rest showed non‐association. In additional, five variants on five genes were rated as strong cumulative epidemiological evidence for a nominally significant association with EC and ESCC risk, including CYP1A1 rs1048943, EGF rs444903, HOTAIR rs920778, MMP2 rs243865, and PLCE1 rs2274223, 10 variants were rated as moderate, and 18 variants were rated as weak. Additionally, 17 SNPs were verified noteworthy in six genomewide association studies (GWAS) using FPRP methods. Collectively, this review offered a comprehensively referenced information with cumulative evidence of associations between genetic polymorphisms and EC and ESCC risk.
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Affiliation(s)
- Jie Tian
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Caiyang Liu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Guanchu Liu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chunjian Zuo
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Huanwen Chen
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Zhu Y, Chen Z, Jiang H, Lu B. The genetic association between EGF A61G polymorphism (rs4444903) and risk of colorectal cancer: An update meta-analysis and trial sequential analysis. Medicine (Baltimore) 2019; 98:e14007. [PMID: 30633190 PMCID: PMC6336653 DOI: 10.1097/md.0000000000014007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Colorectal cancer was a complex disease with multiple causative factors including genetic and environmental factors, as well as the interaction of the 2 factors. Relationship between epidermal growth factor (EGF) A61G polymorphism and colorectal cancer risk has been widely investigated previously, whereas results derived from these studies were inconclusive and controversial. The aim of this study was to investigate the association between the EGF A61G polymorphism and colorectal cancer using a meta-analysis of existing literature. METHODS Literature search was conducted from PubMed, EMBASE, China National Knowledge Infrastructure, Wanfang, and Cochrane library databases before July 2017. Pooled odds ratios (ORs) with 95% confidence intervals (CIs) were used to evaluate the strength of the association between EGF A61G and colorectal cancer. RESULTS A total of 9 studies that involved 1448 cases and 1928 healthy controls and found allelic (OR = 1.18, P = .04) and recessive models (OR = 1.36, P = .03) of EGF A61G were significantly associated with the risk of colorectal cancer. Stratification analyses by ethnicity indicated that the EGF 61G significantly increased the risk of colorectal cancer in the Caucasian subgroup (OR = 1.24, P = .02), but not in Asian subgroup (OR = 1.12, P = .08). And the frequency of GG genotype of EGF A61G significantly increased in cases than that in healthy controls in both Caucasian (OR = 1.40, P = .04) and Asian subgroups (OR = 1.27, P = .01). Furthermore, the sample sources and genotyping methods seem to have no influence on the correction of EGF A61G and colorectal cancer susceptibility (P > .05). CONCLUSION The results indicate that EGF A61G might increase the risk of colorectal cancers.
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Affiliation(s)
- Yi Zhu
- Department of Gastroenterological Surgery, The First Affiliated Hospital of Jiaxing University
- Department of Gastroenterological Surgery, First Hospital of Jiaxing, Jiaxing, Zhejiang, China
| | - ZhiHeng Chen
- Department of Gastroenterological Surgery, The First Affiliated Hospital of Jiaxing University
| | - HongGang Jiang
- Department of Gastroenterological Surgery, The First Affiliated Hospital of Jiaxing University
| | - BoHao Lu
- Department of Gastroenterological Surgery, The First Affiliated Hospital of Jiaxing University
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Association between EGF +61 A>G polymorphism and gastric cancer risk: A meta-analysis. ACTA ACUST UNITED AC 2015; 35:327-332. [PMID: 26072068 DOI: 10.1007/s11596-015-1432-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 12/05/2014] [Indexed: 12/23/2022]
Abstract
Previous studies suggested an association between the EGF +61 A>G polymorphism and susceptibility to gastric cancer, but the results have been inconsistent. To draw a more precise risk estimation of the association, we performed a meta-analysis of published studies. PubMed, EMBASE, Google Scholar and the Chinese Wanfang databases were systematically searched to identify relevant studies. There were 7 studies involving 1992 cases of gastric cancer and 3202 controls in this meta-analysis. Our study showed that, overall, the EGF +61 A>G polymorphism was significantly associated with the increased risk of gastric cancer in allele model (G vs. A: OR=1.18, 95% CI=1.00-1.39), dominant model (GG + GA vs. AA: OR=1.28, 95% CI=1.05-1.55), homozygous model (GG vs. AA: OR=1.31, 95% CI=1.06-1.63) and heterozygous model (GA vs. AA: OR=1.25, 95% CI=1.01-1.53). The stratified analysis by ethnicity revealed a significant association between EGF +61 A>G polymorphism and gastric cancer risks in Asians. This meta-analysis indicates that EGF +61 A>G polymorphism may increase the risk of gastric cancer, especially in Asians. Large-sized, well-designed studies involving different ethnic groups should be conducted to confirm this association.
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Peng Q, Li S, Qin X, Lao X, Chen Z, Zhang X, Chen J. EGF +61A/G polymorphism contributes to increased gastric cancer risk: evidence from a meta-analysis. Cancer Cell Int 2014; 14:134. [PMID: 25729328 PMCID: PMC4344773 DOI: 10.1186/s12935-014-0134-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 11/19/2014] [Indexed: 01/20/2023] Open
Abstract
Background Epidermal growth factor (EGF) plays a pivotal role in cell proliferation, differentiation, and tumorigenesis of epithelial tissues. Variation of the EGF +61A/G (rs4444903) can lead to an alteration in EGF production and/or activity, which may result in individual susceptibility to gastric cancer. Studies investigating the association between EGF +61A/G polymorphism and gastric cancer risk produced inconsistent results. The aim of this study was to quantitatively summarize the evidence for such an association. Methods Eligible studies on the association between EGF +61A/G polymorphism and gastric cancer risk were identified by search of electronic databases including PubMed, EMBASE, Cochrane Library, and Chinese Biomedical Literature database (CBM). Data were extracted by two independent authors and pooled odds ratios (ORs) with 95% confidence intervals (CIs) were used to assess the strength of the association. Metaregression and subgroup analyses were performed to identify the source of heterogeneity. Results Finally, six case–control studies with 1547 gastric cancer cases and 2762 controls were eventually identified. Overall, significant increased gastric cancer risk was found when all studies were pooled in the meta-analysis (GG vs. AA: OR = 1.438, 95% CI 1.021–2.025, P = 0.038; GG + AG vs. AA: OR = 1.256, 95% CI 1.025–1.539, P = 0.028; GG vs. AG + AA: OR = 1.265, 95% CI 1.002–1.596, P = 0.048). In subgroup analysis by ethnicity, source of control, study quality, and HWE in controls, significant increased gastric cancer risk was observed in Asians, population-based studies, high quality studies, and studies consistent with HWE. In subgroup analysis according to tumor location, and histological type, significant association was observed in all subgroups. Conclusions This meta-analysis suggested that the EGF +61A/G polymorphism contributes to increased gastric cancer risk, especially in Asian populations. Further well-designed studies based on large sample size in diverse populations are needed to confirm this association.
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Affiliation(s)
- Qiliu Peng
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi China
| | - Shan Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi China
| | - Xue Qin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi China
| | - Xianjun Lao
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi China
| | - Zhiping Chen
- Department of Occupational Health and Environmental Health, School of Public Health at Guangxi Medical University, Nanning, Guangxi China
| | - Xiaolian Zhang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi China
| | - Junqiang Chen
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021 Guangxi China
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de Mello RA, Gerós S, Alves MP, Moreira F, Avezedo I, Dinis J. Cetuximab plus platinum-based chemotherapy in head and neck squamous cell carcinoma: a retrospective study in a single comprehensive European cancer institution. PLoS One 2014; 9:e86697. [PMID: 24516537 PMCID: PMC3916324 DOI: 10.1371/journal.pone.0086697] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 12/11/2013] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND The use of cetuximab in combination with platinum (P) plus 5-fluorouracil (F) has previously been demonstrated to be effective in the treatment of metastatic squamous cell cancer of head and neck (SCCHN). We investigated the efficacy and outcome of this protocol as a first-line treatment for patients with recurrent or metastatic disease. We evaluated overall-survival (OS), progression-free-survival (PFS), overall response rate (ORR) and the treatment toxicity profile in a retrospective cohort. PATIENTS AND METHODS This study enrolled 121 patients with untreated recurrent or metastatic SCCHN. The patients received PF+ cetuximab every 3 weeks for a maximum of 6 cycles. Patients with stable disease who received PF+ cetuximab continued to receive cetuximab until disease progressed or unacceptable toxic effects were experienced, whichever occurred first. RESULTS The median patient age was 53 (37-78) years. The patient cohort was 86.8% male. The addition of cetuximab to PF in the recurrent or metastatic setting provided an OS of 11 months (Confidential Interval, CI, 95%, 8.684-13.316) and PFS of 8 months (CI 95%, 6.051-9.949). The disease control rate was 48.9%, and the ORR was 23.91%. The most common grade 3 or 4 adverse events in the PF+ cetuximab regimen were febrile neutropenia (5.7%), skin rash (3.8%) and mucosistis (3.8%). CONCLUSIONS The results of this study suggest that cetuximab plus platinum-fluorouracil chemotherapy is a good option for systemic treatment in advanced SSCHN patients. This regimen has a well-tolerated toxicity profile.
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Affiliation(s)
- Ramon Andrade de Mello
- Department of Medical Oncology, Head and Neck Unit, Portuguese Oncology Institute, Porto, Portugal
- Department of Medicine and Biomedical Sciences, School of Medicine, University of Algarve, Faro, Portugal
- Department of Medicine, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Sandra Gerós
- Service of Otorhinolaryngology, Head and Neck Unit, Portuguese Oncology Institute, Porto, Portugal
- Department of Otorhinolaryngology and Cervical Facial Surgery, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Marcos Pantarotto Alves
- Department of Medical Oncology, Head and Neck Unit, Portuguese Oncology Institute, Porto, Portugal
| | - Filipa Moreira
- Department of Medicine, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Isabel Avezedo
- Department of Medical Oncology, Head and Neck Unit, Portuguese Oncology Institute, Porto, Portugal
| | - José Dinis
- Department of Medical Oncology, Head and Neck Unit, Portuguese Oncology Institute, Porto, Portugal
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Relationship between EGF, TGFA, and EGFR Gene Polymorphisms and Traditional Chinese Medicine ZHENG in Gastric Cancer. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:731071. [PMID: 24454509 PMCID: PMC3876898 DOI: 10.1155/2013/731071] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 10/23/2013] [Accepted: 11/20/2013] [Indexed: 02/06/2023]
Abstract
In traditional Chinese medicine (TCM), correct syndrome differentiation is the most important principle guiding the prescription of Chinese herbal formulae for the treatment of gastric cancer (GC). We aimed to reveal the genetic mechanisms underlying GC syndrome differentiation (ZHENG) in a population of 387 GC patients. Twenty-nine single nucleotide polymorphisms (SNPs) in EGF, TGFA, and EGFR were investigated. Two SNPs, rs11466285 in TGFA and rs884225 in EGFR, were significantly associated with the distribution of ZHENG (P < 0.05). The rs11466285 TT genotype increased the risk of damp heat with toxin (DHT) and deficiency of both Qi and yin (DQY) compared with obstruction of blood stasis (OBS). The rs884225 AA genotype could increase the risk of DQY and deficiency of both Qi and blood (DQB) compared with yin deficiency due to stomach heat (YDSH). Parallel comparison among the SNPs and syndrome types revealed that DQB was distinct from YDSH, disharmony between the liver and stomach, stagnation of phlegm muddiness (SPM), OBS, and other syndromes at several SNP loci (P < 0.05). The rs11466285 TT and rs884225 AA genotypes exhibit increased risk of DQB compared with OBS and SPM (P < 0.05), respectively. In conclusion, the formation of GC ZHENG was related to EGF, TGFA, and EGFR gene polymorphisms.
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Piao Y, Liu Z, Ding Z, Xu L, Guo F, Sun Q, Xie X. EGF +61A>G polymorphism and gastrointestinal cancer risk: a HuGE review and meta-analysis. Gene 2013; 519:26-33. [PMID: 23403233 DOI: 10.1016/j.gene.2013.01.057] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 12/19/2012] [Accepted: 01/28/2013] [Indexed: 11/18/2022]
Abstract
Emerging evidences from preclinical and clinical studies have shown that epidermal growth factor (EGF) has some effectiveness against endogenously arising carcinogenesis. Functional +61A>G polymorphism (rs4444903 A>G) in the promoter region of the EGF gene was observed to modulate EGF levels, thus affecting the susceptibility to gastrointestinal cancer; but individually published studies showed inconclusive results. The aim of this Human Genome Epidemiology (HuGE) review and meta-analysis was to derive a more precise estimation of the association between EGF +61A>G polymorphism and gastrointestinal cancer risk. A literature search of Pubmed, Embase, Web of Science and Chinese BioMedical databases from inception through July 2012 was conducted. Twelve studies were assessed with a total of 2868 gastrointestinal cancer cases and 4278 healthy controls. When all the eligible studies were pooled into the meta-analysis, the results showed that the G allele and GG genotype of EGF +61A>G polymorphism might increase the risk of gastrointestinal cancer. In the stratified analysis by cancer types, the G allele and GG genotype of EGF +61A>G polymorphism showed displayed significant correlations with increased risk of esophageal cancer. We also found significant correlations between the G carrier (GG+AG) and GG genotype of EGF +61A>G polymorphism and colorectal cancer risk. However, EGF +61A>G polymorphism did not appear to have an influence on gastric cancer susceptibility. Results from the current meta-analysis indicate that EGF +61A>G polymorphism might increase the risk of esophageal and colorectal cancers. Nevertheless, further studies are needed to determine whether genetic associations between EGF +61A>G polymorphism and susceptibility to gastric cancer are significant.
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Affiliation(s)
- Ying Piao
- Department of Oncology, Cancer Treatment Center, General Hospital of Shenyang Military Region, Shenyang 110840, China
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Ren KW, Liu PF. Response to Yuan-Yuan et al.'s Letter. DNA Cell Biol 2012. [DOI: 10.1089/dna.2011.1588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Ke-Wei Ren
- Department of Gastroenterology, The Affiliated Jiangyin Hospital of Southeast University Medical School, Jiangyin, China
| | - Peng-Fei Liu
- Department of Gastroenterology, The Affiliated Jiangyin Hospital of Southeast University Medical School, Jiangyin, China
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Association between EGF +61 genetic polymorphisms and non-small cell lung cancer increased risk in a Portuguese population: a case-control study. Tumour Biol 2012; 33:1341-8. [PMID: 22457050 DOI: 10.1007/s13277-012-0382-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Accepted: 03/14/2012] [Indexed: 02/06/2023] Open
Abstract
Epidermal growth factor (EGF) and its receptor play critical roles in non-small cell lung cancer (NSCLC) carcinogenesis. A functional polymorphism in the EGF gene has been linked to increased cancer susceptibility. This study aimed to evaluate the role of the EGF +61A/G polymorphism as risk factors in NSCLC patients. For the present case-control study, we analyzed 112 NSCLC and 126 cancer-free controls from Portugal. Following DNA isolation from peripheral blood, EGF +61A/G polymorphism was assessed by polymerase chain reaction-restriction fragment length polymorphism. Univariate and multivariate logistic regression analyses were used to calculate odds ratio (OR) and 95 % confidence intervals (95 % CI). False-positive report probability was also assessed. The EGF +61 genotypes frequencies in NSCLC were AA (23.2 %), AG (51.8 %), and GG (25 %) and in controls, AA (40.5 %), AG (41.3 %), and GG (18.3 %). When compared to the reference genotype (EGF +61A/A), we found a statistically significant association between EGF +61 A/G (OR = 2.142, 95 % CI 1.170-3.924) and EGF +61G/G (OR = 2.398, 95 % CI 1.157-4.968) genotypes and susceptibility to development of NSCLC. Furthermore, stratification by sex revealed a trend to increased risk of males carrying +61A/G genotype for developing NSCLC (OR = 2.044, 95 % CI 0.998-4.188) when compared to A/A genotype. Our data suggest an increased risk to develop NSCLC in Portuguese population carrying the EGF +61A/G and +61G/G genotypes.
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Yuan-Yuan M, Li-Jie Z, Xiao-Ming Y, Sheng W. Clarification of data for a recent meta-analysis--epidermal growth factor polymorphisms and cancer risk: involving 9,779 cases and 15,932 controls. DNA Cell Biol 2012; 31:418-9; author reply 420-1. [PMID: 22257442 DOI: 10.1089/dna.2011.1569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Menke V, Pot RGJ, Moons LMG, van Zoest KPM, Hansen B, van Dekken H, Siersema PD, Kusters JG, Kuipers EJ. Functional single-nucleotide polymorphism of epidermal growth factor is associated with the development of Barrett's esophagus and esophageal adenocarcinoma. J Hum Genet 2011; 57:26-32. [PMID: 22129558 DOI: 10.1038/jhg.2011.124] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Reflux esophagitis (RO) and Barrett's esophagus (BO) can cause esophageal adenocarcinoma (OAC). The esophageal mucosa in the RO-BO-OAC cascade is chronically exposed to gastro-esophageal reflux. Epidermal growth factor (EGF) has an important role in the protection and repair of mucosal damage, and non-physiologic levels are associated with gastrointestinal tumors. The aim is to determine the functional effect of EGF gene polymorphisms on RO, BO and OAC development. A cohort of 871 unrelated Dutch Caucasians consisted of 198 healthy controls, 298 RO patients, 246 BO patients and 129 OAC patients. The frequency of the EGF-production-associated 5'UTR A+61G polymorphism was determined in these four groups. EGF immunohistochemistry was performed on BO biopsies. EGF expression was significantly lower in the G/G genotype compared with the A/G (P=0.008) and A/A (P=0.002) group. The G/G genotype was significantly more prevalent in RO (odds ratios (OR)=2.6; 95% confidence intervals (95% CI): 1.3-5.2), BO (OR=3.0; 95% CI: 1.5-6.2) and OAC (OR=4.1; 95% CI: 1.8-9.7) than in controls. The G allele is associated with reduced EGF expression and increased risk for RO, BO and OAC development. This indicates that reduced mucosal protection resulting from genetically decreased EGF expression enhances esophageal tumor development.
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Affiliation(s)
- Vivianda Menke
- Departments of Gastroenterology and Hepatology, Erasmus MC-University Medical Centre Rotterdam, Rotterdam, The Netherlands
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Li TF, Ren KW, Liu PF. Meta-analysis of epidermal growth factor polymorphisms and cancer risk: involving 9,779 cases and 15,932 controls. DNA Cell Biol 2011; 31:568-74. [PMID: 22070650 DOI: 10.1089/dna.2011.1394] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The epidermal growth factor (EGF) pathway stimulates proliferation and differentiation of epidermal and epithelial tissues, and plays an important role in tumorigenesis. The association between EGF polymorphisms and cancer risk is controversial; thus, we performed this meta-analysis. Overall, 41 case-control studies with 9,779 cases and 15,932 controls were retrieved. We found that EGF +61A/G polymorphism increased overall cancer risk (G allele vs. A allele: OR=1.181, 95% CI=1.077-1.295, P(heterogeneity) < 0.001; GG vs. AA: OR=1.370, 95% CI=1.143-1.641, P(heterogeneity) < 0.001; GG+GA vs. AA: OR=1.175, 95% CI=1.047-1.318, P(heterogeneity) < 0.001). In the stratified analysis by cancer type, the +61 G allele was a risk factor for colorectal cancer, esophageal carcinoma, gastric cancer, and hepatocellular carcinoma. Individuals who carried +61G allele had higher cancer susceptibility in mixed and European racial subgroups. An increased association was detected in the hospital-based subgroup. No significant association was found among EGF -1380A/G, -1744G/A, rs6983267T/G polymorphisms and cancer risk.
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Affiliation(s)
- Teng-Fei Li
- Department of Gastroenterology, The Affiliated Jiangyin Hospital of Southeast University Medical School, Jiangyin, China
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