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Patel SL, Prakash J, Gupta V. TGF-β1 +869C/T polymorphism increases susceptibility to rheumatoid arthritis in North Indian population. Clin Rheumatol 2020; 39:2881-2888. [DOI: 10.1007/s10067-020-05064-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 03/18/2020] [Accepted: 03/23/2020] [Indexed: 10/24/2022]
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Cheung CKY, Lan LL, Chan Y, Yuen K, Cheong PK, Fang F, Wu JCY. Functional dyspepsia susceptibility is associated with TGFB1 gene polymorphisms (RS4803455, RS1800469) in H pylori-negative Chinese population. Neurogastroenterol Motil 2019; 31:e13681. [PMID: 31386263 DOI: 10.1111/nmo.13681] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 06/14/2019] [Accepted: 07/02/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND We previously published that altered expression of gastric TRPV1, BDNF, and peripheral cytokines was present in patients with functional dyspepsia. We herein examine whether genetic predisposition in altered biomarkers influences dyspeptic, sleep, and mood symptoms in patients with FD without previous infection. METHODS Consecutive adult FD patients (Rome III) with no recent history of gastroenteritis and asymptomatic age- and sex-matched healthy controls were recruited for upper endoscopy. Subjects with GERD and IBS as predominant symptoms, diabetes mellitus, current or previous H pylori infection, psychiatric illness, and recent use of NSAID or PPI were excluded. The genetic associations with dyspeptic symptoms, sleep quality, and mood symptoms were evaluated. Genetic polymorphisms in TRPV1, TGFB1, TNF, COMT, BDNF, IL6, IL8, IL10, and IL12 were analyzed. KEY RESULTS Twenty-nine male FD patients and 104 female FD patients were age matched (±3 years) with 81 healthy subjects. All had postprandial distress syndrome (PDS) as predominant subtype (PDS: 130, EPS: 3). SNPs in TGFB1 showed significant associations in dyspeptic patients after age and sex adjustment [for RS4803455: in the codominant model (C/A, OR = 0.34 (0.18-0.65), P = .004); in the dominant model (genotype C/C vs C/A-A/A, OR = 0.42 (0.23-0.77), P = .004); and in the overdominant model (genotype C/C-A/A vs C/A, OR = 0.38 (0.21-0.70), P < .001)] [for RS1800469: in dominant model (genotype A/A vs A/G-G/G, OR = 0.52 (0.27-0.99), P = .043)]. A allele in RS4803455 was associated with higher HADS depression score (P = .05) and epigastric burning sensation(P = .01). CONCLUSIONS AND INFERENCES Our data showed that dyspeptic patients predispose genetic difference in TGFB1 which may influence the severity of dyspepsia.
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Affiliation(s)
- Cynthia K Y Cheung
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - Lin Lin Lan
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - Yawen Chan
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - Kay Yuen
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - Pui Kuan Cheong
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - Fanny Fang
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - Justin C Y Wu
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
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Clinical relevance of single nucleotide polymorphisms within the 13 cytokine genes in North Indian trauma hemorrhagic shock patients. Scand J Trauma Resusc Emerg Med 2015; 23:96. [PMID: 26561011 PMCID: PMC4642631 DOI: 10.1186/s13049-015-0174-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 10/29/2015] [Indexed: 12/25/2022] Open
Abstract
INTRODUCTION The susceptibility to adverse outcome from critical injury (occurrence of sepsis, septic shock, organ dysfunction/failure, and mortality) varies dramatically due to different degrees of inflammatory response. We assessed the relationship of the genotype distribution of various cytokine gene polymorphisms (CGP) with regard to the development of sepsis, organ dysfunction or mortality in severely injured patients. METHOD Observational, hospital-based cohort study of 114 severely injured North Indian patients from New Delhi admitted to the Emergency Department (ED) of Trauma Centre, AIIMS. Patients were monitored from day first to discharge or death, measuring SOFA score, sepsis and septic shock occurrences up to one month. We have analyzed 13 cytokine genes, including the SNPs of structural and regulatory regions at 22 positions. RESULTS Sequence-specific primer based PCR indicated that eight polymorphic loci IL-1α /-889, IL-1β/-511, IL-1R (pstI 1970), TGF-β/ code 10, TNF-α/-308, TNF-α/-238, IL-6/+565 and IL-10/-1082, out of 22 SNPs are significantly associated with sepsis morbidity and outcome. Theses SNPs might be used as risk determinants of the outcome. Patients with IL-10 (-1082A/A) genotypes were found significantly higher in post traumatic sepsis patients and had a significantly higher risk to developed sepsis complication (p < 0.05, OR = 0.86, C.I = 0.08-8.8).In case of TNF-α (-308) position, GA and GG genotype patients have a significantly lower risk of poor outcome (p < 0.05, OR = 0.25, C.I = 0.01-1.3) and (p < 0.05, OR = 0.22, C.I = 0.01-0.5) in comparison to AA genotype. In this study, two polymorphisms (IL-1β (-511) and IL-1R) were significantly associated with the development of MOF and mortality, where as IL-1α (-889) polymorphism associated with susceptibility for sepsis. The distribution of haplotypes of TGF-β and IL-6 were also associated with sepsis susceptibility and outcome. CONCLUSION In conclusion, we have found that the alternations in the genotype and allele frequency of IL-1β (-511C/T), TNF-α (-308 G/A), TNF-α (-238 G/A) and IL-10 (-1082 G/A) genes are associated with an higher risk of sepsis development in trauma patients and outcomes.
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Li N, Xie C, Lu NH. Transforming growth factor-β: an important mediator in Helicobacter pylori-associated pathogenesis. Front Cell Infect Microbiol 2015; 5:77. [PMID: 26583078 PMCID: PMC4632021 DOI: 10.3389/fcimb.2015.00077] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 10/20/2015] [Indexed: 12/14/2022] Open
Abstract
Helicobacter pylori (H.pylori) is a Gram-negative, microaerophilic, helical bacillus that specifically colonizes the gastric mucosa. The interaction of virulence factors, host genetic factors, and environmental factors contributes to the pathogenesis of H. pylori-associated conditions, such as atrophic gastritis and intestinal metaplasia. Infection with H. pylori has recently been recognized as the strongest risk factor for gastric cancer. As a pleiotropic cytokine, transforming growth factor (TGF)-β regulates various biological processes, including cell cycle, proliferation, apoptosis, and metastasis. Recent studies have shed new light on the involvement of TGF-β signaling in the pathogenesis of H. pylori infection. This review focuses on the potential etiological roles of TGF-β in H. pylori-mediated gastric pathogenesis.
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Affiliation(s)
- Nianshuang Li
- Department of Gastroenterology, Institute of Digestive Disease, The First Affiliated Hospital of Nanchang University Nanchang, China
| | - Chuan Xie
- Department of Gastroenterology, Institute of Digestive Disease, The First Affiliated Hospital of Nanchang University Nanchang, China
| | - Nong-Hua Lu
- Department of Gastroenterology, Institute of Digestive Disease, The First Affiliated Hospital of Nanchang University Nanchang, China
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García-González MA, Bujanda L, Quintero E, Santolaria S, Benito R, Strunk M, Sopeña F, Thomson C, Pérez-Aisa A, Nicolás-Pérez D, Hijona E, Carrera-Lasfuentes P, Piazuelo E, Jiménez P, Espinel J, Campo R, Manzano M, Geijo F, Pellise M, Zaballa M, González-Huix F, Espinós J, Titó L, Barranco L, Pazo-Cid R, Lanas A. Association ofPSCArs2294008 gene variants with poor prognosis and increased susceptibility to gastric cancer and decreased risk of duodenal ulcer disease. Int J Cancer 2015; 137:1362-73. [PMID: 25721731 DOI: 10.1002/ijc.29500] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 02/18/2015] [Indexed: 12/13/2022]
Affiliation(s)
- María Asunción García-González
- Instituto De Investigación Sanitaria Aragón (IIS Aragón); Zaragoza Spain
- CIBER De Enfermedades Hepáticas Y Digestivas (CIBERehd); Zaragoza Spain
| | - Luis Bujanda
- CIBER De Enfermedades Hepáticas Y Digestivas (CIBERehd); Zaragoza Spain
- Department of Gastroenterology; Hospital Donostia/Instituto Biodonostia, Universidad Del País Vasco (UPV/EHU); San Sebastián Spain
| | - Enrique Quintero
- Department of Gastroenterology; Hospital Universitario De Canarias, Instituto Universitario De Tecnologías Biomédicas (ITB), Centro De Investigación Biomédica De Canarias (CIBICAN); Tenerife Spain
| | | | - Rafael Benito
- CIBER De Enfermedades Hepáticas Y Digestivas (CIBERehd); Zaragoza Spain
- Department of Microbiology; Faculty of Medicine; Hospital Clínico Universitario; Zaragoza Spain
| | - Mark Strunk
- Instituto De Investigación Sanitaria Aragón (IIS Aragón); Zaragoza Spain
- CIBER De Enfermedades Hepáticas Y Digestivas (CIBERehd); Zaragoza Spain
| | - Federico Sopeña
- CIBER De Enfermedades Hepáticas Y Digestivas (CIBERehd); Zaragoza Spain
- Department of Gastroenterology; Hospital Clínico Universitario Lozano Blesa; Zaragoza Spain
| | - Concha Thomson
- Department of Gastroenterology; Hospital Obispo Polanco; Teruel Spain
| | | | - David Nicolás-Pérez
- Department of Gastroenterology; Hospital Universitario De Canarias, Instituto Universitario De Tecnologías Biomédicas (ITB), Centro De Investigación Biomédica De Canarias (CIBICAN); Tenerife Spain
| | - Elizabeth Hijona
- Department of Gastroenterology; Hospital Donostia/Instituto Biodonostia, Universidad Del País Vasco (UPV/EHU); San Sebastián Spain
| | | | - Elena Piazuelo
- Instituto De Investigación Sanitaria Aragón (IIS Aragón); Zaragoza Spain
- CIBER De Enfermedades Hepáticas Y Digestivas (CIBERehd); Zaragoza Spain
| | - Pilar Jiménez
- CIBER De Enfermedades Hepáticas Y Digestivas (CIBERehd); Zaragoza Spain
| | - Jesús Espinel
- Department of Gastroenterology; Complejo Hospitalario; León Spain
| | - Rafael Campo
- Department of Gastroenterology; Hospital Parc Tauli; Sabadell Spain
| | - Marisa Manzano
- Department of Gastroenterology; Hospital 12 De Octubre; Madrid Spain
| | - Fernando Geijo
- Department of Gastroenterology; Hospital Clínico Universitario; Salamanca Spain
| | - María Pellise
- Department of Gastroenterology; Hospital Clinic I Provincial; Barcelona Spain
| | - Manuel Zaballa
- Department of Gastroenterology; Hospital De Cruces; Barakaldo Spain
| | | | - Jorge Espinós
- Department of Gastroenterology; Mutua De Tarrasa; Spain
| | - Llúcia Titó
- Department of Gastroenterology; Hospital De Mataró; Mataró Spain
| | - Luis Barranco
- Department of Gastroenterology; Hospital Del Mar; Barcelona Spain
| | | | - Angel Lanas
- Instituto De Investigación Sanitaria Aragón (IIS Aragón); Zaragoza Spain
- CIBER De Enfermedades Hepáticas Y Digestivas (CIBERehd); Zaragoza Spain
- Department of Gastroenterology; Hospital Clínico Universitario Lozano Blesa; Zaragoza Spain
- Department of Medicine; Universidad de Zaragoza; Spain
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An updated meta-analysis of transforming growth factor-β1 gene: three polymorphisms with gastric cancer. Tumour Biol 2013; 35:2837-44. [PMID: 24254308 DOI: 10.1007/s13277-013-1408-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 11/07/2013] [Indexed: 02/06/2023] Open
Abstract
To derive a more precise estimation of the relationship between TGF-β1 polymorphisms and gastric cancer (GC) risk, we conducted a meta-analysis of all available case-control studies relating the C-509 T, T869C, and G 915C polymorphisms of the TGF-β1 gene to the risk of developing GC. The effect summary odds ratio (OR) and 95% confidence intervals (CIs) were obtained. Funnel plots and Egger's test were used to estimate publication bias. Finally, 11 studies were included in the final meta-analysis. With respect to C-509 T polymorphism, it was found that significantly increased GC risk was associated with the TT genotype in the recessive genetic model in overall analysis (TT vs. CC + CT: OR = 1.23, 95% CI 1.09-1.38, P(heterogeneity) = 0.13) and in Asian population (TT vs. CC + CT: OR = 1.24, 95% CI 1.10-1.39, P(heterogeneity) = 0.18). With respect to T869C and G915C polymorphisms, no significant association with GC risk was demonstrated in overall analysis and subgroup analyses according to ethnicity for all genetic models. This meta-analysis suggested that the T allele of TGF-β1 509C/T polymorphism is probably the susceptibility factor for GC.
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Zhang CF, Wang ZW, Hou MX, Li K, Zhou X, Xia YH. Transforming Growth Factor β1-509C/T and +869T/C Polymorphisms on the Risk of Upper Digestive Tract Cancer: A Meta-Analysis Based on 10,917 Participants. Ann Hum Genet 2012; 76:363-76. [DOI: 10.1111/j.1469-1809.2012.00717.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Niu H, Niu Z, Zhang XL, Chen ZL. Absence of Association Between Transforming Growth Factor B1 Polymorphisms and Gastric Cancer: A Meta-Analysis. DNA Cell Biol 2012; 31:706-12. [PMID: 22074128 DOI: 10.1089/dna.2011.1426] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Hui Niu
- Department of General Surgery, The First Hospital of BeiHua University, Jilin, People's Republic of China
| | - Zhuang Niu
- Department of Medical Insurance, The First Hospital of BeiHua University, Jilin, People's Republic of China
| | - Xing-Li Zhang
- Department of Coining and Cosmet, The First Hospital of BeiHua University, Jilin, People's Republic of China
| | - Zhi-Long Chen
- Department of General Surgery, The First Hospital of BeiHua University, Jilin, People's Republic of China
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Zabaleta J, Camargo MC, Ritchie MD, Piazuelo MB, Sierra RA, Turner SD, Delgado A, Fontham ETH, Schneider BG, Correa P, Ochoa AC. Association of haplotypes of inflammation-related genes with gastric preneoplastic lesions in African Americans and Caucasians. Int J Cancer 2011; 128:668-75. [PMID: 20473875 PMCID: PMC2964400 DOI: 10.1002/ijc.25385] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Identification of biomarkers is needed for development of screening programs to prevent gastric cancer. Because racial differences exist in cancer rates, we aimed to evaluate the association between polymorphisms in inflammation-related genes and gastric preneoplastic lesions in African Americans and Caucasians from Louisiana, USA. Gastric biopsies from 569 adults (361 African Americans and 208 Caucasians) undergoing diagnostic endoscopy were used for histological diagnosis and genomic DNA extraction. Polymorphisms within eight genes (IL1B, IL8, IL6, TNF, PTGS2, ARG1, IL10 and TGFB1) were investigated by TaqMan. The cagA status of Helicobacter pylori infection was assessed by PCR. Haplotype logistic regression models were used to identify variables associated with intestinal metaplasia or dysplasia. African Americans carrying the haplotype IL1B-511T/-31C/+3954T, which includes the three risk-associated alleles at the IL1B locus, were more likely to being diagnosed with intestinal metaplasia or dysplasia than those carrying the most common haplotype T-C-C (adjusted OR: 2.51, 95% CI: 1.1-5.5). None of the polymorphisms were associated with intestinal metaplasia and dysplasia in Caucasians. Age and cagA-positive status were independent factors associated with these lesions. Haplotypes at the IL1B locus may participate in mediating the susceptibility to gastric carcinogenesis and might be useful as markers of advanced premalignant lesions in African Americans. Interestingly, carriage of IL1B+3954T allele seems to be the key factor, even though the role played by other polymorphisms cannot be excluded.
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Ghoshal UC, Chourasia D. Gastroesophageal Reflux Disease and Helicobacter pylori: What May Be the Relationship? J Neurogastroenterol Motil 2010; 16:243-50. [PMID: 20680162 PMCID: PMC2912116 DOI: 10.5056/jnm.2010.16.3.243] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2010] [Revised: 07/01/2010] [Accepted: 07/02/2010] [Indexed: 12/12/2022] Open
Abstract
Relationship between Helicobacter pylori (H. pylori) and gastroesophageal reflux disease (GERD) is controversial. We aimed to review the possible relationship between H. pylori infection and GERD. Epidemiological data indicate an inverse relationship between frequency of H. pylori infection and prevalence of GERD and its complications like Barrett's esophagus and esophageal adenocarcinoma. H. pylori eradication in patients with peptic ulcer disease may be associated with increased risk of development of GERD compared with untreated patients. Infection with cagA bearing strains of H. pylori was associated with less severe GERD including endoscopic esophagitis, possibly due to pangastritis leading to hypochlorhydria. Recent studies on inflammatory markers (IL-1β and IL-1RN) suggest pro-inflammatory genotypes to be protective against development of severe GERD, especially in patients with H. pylori infection. Identification of candidate genes playing an important role in gastric acid secretion and visceral hypersensitivity to the esophageal epithelium might help in early detection of individuals susceptible to develop GERD. Interplay between H. pylori and host factors play an important role in the pathogenesis of GERD.
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Affiliation(s)
- Uday C Ghoshal
- Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
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Carl-McGrath S, Gräntzdörffer I, Lendeckel U, Ebert MP, Röcken C. Angiotensin II-generating enzymes, angiotensin-converting enzyme (ACE) and mast cell chymase (CMA1), in gastric inflammation may be regulated by H. pylori and associated cytokines. Pathology 2010; 41:419-27. [PMID: 19424904 DOI: 10.1080/00313020902885037] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND The local angiotensin II system (LAS) has numerous functions, including the regulation of growth and differentiation in the gastrointestinal tract. Angiotensin II (AngII) may be generated by angiotensin-I-converting enzyme (ACE) or mast cell chymase (CMA1) and plays an important role in inflammatory processes, although opinions differ as to which AngII-generating enzyme is primarily associated with AngII-mediated effects. ACE inhibitors have been shown to have a protective or healing effect on gastric ulcers and colitis in animal models, which could be related to the local expression of ACE. METHODS The localisation of ACE and CMA1 was examined immunohistochemically in Helicobacter pylori gastritis, non-H. pylori gastritis, gastric ulcers and non-lesional gastric tissues. Using real-time qRT-PCR, ACE- and CMA1-mRNA expression in gastric cell lines were examined and changes in ACE levels after exposure to H. pylori or cytokines (IL-1beta, IL-6, IL-8, TNF, TGFbeta1) were quantified. RESULTS ACE and CMA1 were not expressed in the non-lesional foveolar epithelium. Cytoplasmic staining for ACE in fundic chief cells, and apical membranous expression of ACE in the mucin-secreting cells of the antral and pyloric region was observed. ACE was found in endothelial cells of the gastric ulcer granulation tissue and CMA1 was strongly expressed in mast cells. ACE but not CMA1 was expressed in the MKN28, N87 and MKN45 gastric cell lines, and ACE mRNA expression was regulated by both H. pylori and the cytokines. CONCLUSIONS ACE in the gastric mucosa and the microvasculature of granulation tissue may represent a novel therapeutic target for the promotion of healing processes in gastritis and ulceration using ACE inhibitors or AT1R antagonists.
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Wei BB, Xi B, Wang R, Bai JM, Chang JK, Zhang YY, Yoneda R, Su JT, Hua LX. TGFbeta1 T29C polymorphism and cancer risk: a meta-analysis based on 40 case-control studies. ACTA ACUST UNITED AC 2009; 196:68-75. [PMID: 19963138 DOI: 10.1016/j.cancergencyto.2009.09.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2009] [Revised: 08/15/2009] [Accepted: 09/20/2009] [Indexed: 01/27/2023]
Abstract
Transforming growth factor-beta1 (TGFbeta1) plays a significant role in regulating cellular proliferation and apoptosis. The TGFbeta1 T29C polymorphism reportedly affects cancer risk, but pertinent studies offer conflicting results. We therefore performed a meta-analysis based on 40 studies from 32 publications, assessing the strength of the association using odds ratios with 95% confidence intervals. Overall, no evidence has indicated that individuals carrying CC or CT genotypes had significantly increased cancer risks, compared with TT genotype carriers [CC vs. TT: odds ratio (OR)=1.10, 95% confidence interval (95% CI)=1.00-1.21, P=0.06; CT vs. TT: OR=1.07, 95% CI=0.99-1.16, P=0.09). However, stratified analysis by cancer type and ethnicity indicated a significantly increased risk of prostate cancer (CT vs. TT: OR=1.28, 95% CI=1.01-1.61, P=0.04) and cancer in those of Asian descent (CC vs. TT: OR=1.26, 95% CI=1.03-1.53, P=0.02; CT vs. TT: OR=1.20, 95% CI=1.01-1.43, P=0.04). This association was also observed in the dominant model for prostate cancer. Although not all bias could be eliminated, this meta-analysis suggested that TGFbeta1 29C was a low-penetrant risk factor for prostate cancer and cancer in Asians. A larger single study is still required to evaluate any association with other types of cancer or in other populations.
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Affiliation(s)
- Bing-Bing Wei
- Department of Urology, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China
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Suzuki H, Iwasaki E, Hibi T. Helicobacter pylori and gastric cancer. Gastric Cancer 2009; 12:79-87. [PMID: 19562461 DOI: 10.1007/s10120-009-0507-x] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2009] [Accepted: 03/25/2009] [Indexed: 02/07/2023]
Abstract
Helicobacter pylori is now well known as an important pathogen related to the development of gastric cancer. However, some clinicians still doubt the causal association of H. pylori with the development of gastric cancer. To summarize the recent clinical data on the link between H. pylori and gastric cancer, we reviewed related articles published over the past 3 years, after the award of the Nobel Prize for Physiology or Medicine to Drs. J.R. Warren and B.J. Marshall for the first culture and isolation of H. pylori and the investigation of their relevance to peptic ulcer disease. This updated summary of the relationship between H. pylori and gastric cancer highlights the strong link between the organism and the development of gastric cancer, and suggests eradication of this bacterial infection as a possible prophylactic measure against the development of this lethal malignancy. At present, clinicians and researchers in the field emphasize the strong need for H. pylori eradication from the human stomach.
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Affiliation(s)
- Hidekazu Suzuki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
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Gao L, Nieters A, Brenner H. Cell proliferation-related genetic polymorphisms and gastric cancer risk: systematic review and meta-analysis. Eur J Hum Genet 2009; 17:1658-67. [PMID: 19536170 DOI: 10.1038/ejhg.2009.102] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Apart from Helicobacter pylori infection and lifestyle factors, host genetic susceptibility has been suggested to contribute to individual variation in gastric cancer risk as well. Aiming to evaluate the associations between host cell proliferation-related genetic polymorphisms and gastric cancer susceptibility, we reviewed the related studies published until 15 September 2008 and quantitatively summarized the associations of the most widely studied polymorphisms (TP53 Arg72Pro, L-myc EcoRI) using meta-analysis. Fifty-five eligible studies were included in this review. Twenty-three polymorphisms significantly related to gastric cancer risk in at least one study were identified. Polymorphisms determining higher levels of growth factors, which are important for tissue repair, were recently observed to be associated with reduced risk of gastric cancer. In the meta-analysis, TP53 72Pro was associated with increased risk of diffuse gastric cancer among Asians (OR, 1.44; 95% CI, 1.04-1.99), but decreased risk of intestinal gastric cancer among Caucasians (OR, 0.56; 95% CI, 0.36-0.89). This review suggests that cell proliferation-related genetic polymorphisms could be candidate biomarkers of gastric cancer risk, but current evidence for the use for risk stratification is still very limited. Modestly significant associations in meta-analyses stratified by population or type of gastric cancer may be observed by chance because of the limited number of studies and small sample size. Larger studies are warranted to clarify the effect of cell proliferation-related genetic polymorphisms on gastric carcinogenesis.
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Affiliation(s)
- Lei Gao
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
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Zhang P, Di JZ, Zhu ZZ, Wu HM, Wang Y, Zhu G, Zheng Q, Hou L. Association of transforming growth factor-beta 1 polymorphisms with genetic susceptibility to TNM stage I or II gastric cancer. Jpn J Clin Oncol 2008; 38:861-6. [PMID: 18936038 DOI: 10.1093/jjco/hyn111] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Transforming growth factor-beta 1 (TGF-beta1) inhibits the proliferation of tumors in early stages of cancers, whereas it promotes tumor growth and metastasis in later stages of cancers. To examine the effect of the TGF-beta1 polymorphisms on gastric cancer risk, we studied the association between C-509T and T+29C (Leu10Pro) polymorphisms in TGF-beta1 and gastric cancer risk in 414 cases and 414 controls in the Chinese population. When the overall gastric cancer cases were compared with the controls, no significant difference was found in genotype distributions for both the polymorphisms examined. However, when stratified by tumor stage, the -509T and +29C allele carriers had a 0.57-fold (95% CI = 0.36-0.90) and a 0.58-fold (95% CI = 0.36-0.91) decreased risk of TNM stage I+II gastric cancer, respectively, as compared with non-carriers. We conclude that TGF-beta1-509T and +29C alleles may have a protective role in the development of stage I+II gastric cancer.
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Affiliation(s)
- Pin Zhang
- Department of General Surgery, The Sixth People's Hospital, Shanghai Jiaotong University, Shanghai, China
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Abstract
Helicobacter pylori infects almost 50% of the world population and is the major cause of gastroduodenal diseases. H. pylori colonizes the gastric mucosa, activates Toll-like and Nod-like receptors, and usually elicits a T helper 1 (Th1) type of immune response, fully polarized in peptic ulcer patients. Among several bacterial factors, the neutrophil-activating protein represents a key factor driving Th1 inflammation. A complex and fascinating balance between H. pylori and host factors takes part in the gastric niche and allows the majority of infected individuals to be without any symptom during their entire life. Novel insights into the innate and adaptive responses against H. pylori, dealing with regulatory T cells and cytokines, CTLA-4 molecule, cholesterol glucosylation, and immune evasion have been elucidated during the past year and are discussed for the development of an effective vaccine.
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