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Mahmud MT, Ahmed F, Rana MJ, Rahman MA, Atta A, Saif-Ur-Rahman KM. Association of HLA gene polymorphisms with Helicobacter pylori related gastric cancer-a systematic review. HLA 2024; 103:e15394. [PMID: 38372631 DOI: 10.1111/tan.15394] [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: 08/22/2023] [Revised: 01/28/2024] [Accepted: 02/01/2024] [Indexed: 02/20/2024]
Abstract
The appropriate host cell immune responses for the progression of several diseases, including gastric or stomach cancer (GC), are significantly influenced by HLA polymorphisms. Our objective was to systematically review the evidence linking HLA polymorphisms with the risk of Helicobacter. pylori related GC. We conducted a comprehensive literature search to identify studies published between 2000 and April 2023 on the association of HLA polymorphisms with H. pylori related GC using databases such as Medline through PubMed, Embase, Web of Science (core collection), The Cochrane Library, and Scopus. Two authors independently screened articles, extracted data, and assessed the risk of bias using the Risk of Bias Assessment tool for Non-randomized Studies. From 7872 retrieved studies, 19 met inclusion criteria, encompassing 1656 cases and 16,787 controls across four World Health Organization regions, with Japan contributing the most studies. We explored HLA-A/B/C, HLA-DRB1/DQA1/DQB1, HLA-G, and MICA alleles. Of 29 significant HLA polymorphisms identified, 18 showed a positive association with GC, whereas 11 were negatively associated. HLA-DQB1*06 allele was most frequently associated to susceptibility, as reported in four studies, followed by HLA-DRB1*04 and HLA-DQA1*01, each reported in two studies. Conversely, HLA-G*01, HLA-DQA1*01, HLA-DQA1*05, and HLA-DQB1*03 were identified as protective in two studies each. Additionally, five genotypes and six haplotypes were reported as positive, whereas three genotypes and two haplotypes were negative factors for the disease incidence or mortality. Despite heterogeneity in the study population and types of HLA polymorphisms examined, our analysis indicates certain polymorphisms are associated with H. pylori related GC progression and mortality in specific populations.
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Affiliation(s)
- Md Toslim Mahmud
- Department of Microbiology, Noakhali Science & Technology University, Sonapur, Noakhali, Bangladesh
- Department of Biology, Baylor University, Waco, Texas, USA
| | - Feroz Ahmed
- Department of Biology, University of Texas-Arlington, Arlington, Texas, USA
- Laboratory of Environmental Biology, Division of Environmental Health Sciences, Wadsworth Center, New York State Department of Health, Albany, New York, USA
| | - Md Jowel Rana
- Infectious Diseases Division, icddr,b, Dhaka, Bangladesh
| | - Md Arifur Rahman
- Department of Microbiology, Noakhali Science & Technology University, Sonapur, Noakhali, Bangladesh
| | - Afshan Atta
- Department of Hematopathology, Skims Tertiary Centre Hospital (STCH), Srinagar, India
| | - K M Saif-Ur-Rahman
- College of Medicine, Nursing, and Health Sciences, University of Galway, Galway, Ireland
- Evidence Synthesis Ireland and Cochrane Ireland, University of Galway, Galway, Ireland
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Tran SC, Bryant KN, Cover TL. The Helicobacter pylori cag pathogenicity island as a determinant of gastric cancer risk. Gut Microbes 2024; 16:2314201. [PMID: 38391242 PMCID: PMC10896142 DOI: 10.1080/19490976.2024.2314201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 01/31/2024] [Indexed: 02/24/2024] Open
Abstract
Helicobacter pylori strains can be broadly classified into two groups based on whether they contain or lack a chromosomal region known as the cag pathogenicity island (cag PAI). Colonization of the human stomach with cag PAI-positive strains is associated with an increased risk of gastric cancer and peptic ulcer disease, compared to colonization with cag PAI-negative strains. The cag PAI encodes a secreted effector protein (CagA) and components of a type IV secretion system (Cag T4SS) that delivers CagA and non-protein substrates into host cells. Animal model experiments indicate that CagA and the Cag T4SS stimulate a gastric mucosal inflammatory response and contribute to the development of gastric cancer. In this review, we discuss recent studies defining structural and functional features of CagA and the Cag T4SS and mechanisms by which H. pylori strains containing the cag PAI promote the development of gastric cancer and peptic ulcer disease.
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Affiliation(s)
- Sirena C. Tran
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Kaeli N. Bryant
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Timothy L. Cover
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, TN, USA
- Veterans Affairs Tennessee Valley Healthcare System, Nashville, TN, USA
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Wang X, Tian R, Zong X, Jeon MS, Luo J, Colditz GA, Wang JS, Tsilidis KK, Ju YES, Govindan R, Puri V, Cao Y. Sleep Behaviors, Genetic Predispositions, and Risk of Esophageal Cancer. Cancer Epidemiol Biomarkers Prev 2023; 32:1079-1086. [PMID: 37195052 PMCID: PMC10525008 DOI: 10.1158/1055-9965.epi-23-0101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/16/2023] [Accepted: 05/11/2023] [Indexed: 05/18/2023] Open
Abstract
BACKGROUND Risk factors contributing to more than 10-fold increase in esophageal cancer in the last 50 years remain underexplored. We aim to examine the associations of sleep behaviors with esophageal adenocarcinoma (EAC) and squamous cell carcinoma (ESCC). METHODS We prospectively assessed the associations between sleep behaviors (chronotype, duration, daytime napping, daytime sleepiness, snoring, and insomnia) and EAC and ESCC risk in 393,114 participants in the UK Biobank (2006-2016). Participants with 0, 1, and ≥2 unhealthy behaviors, including sleep <6 or >9 h/d, daytime napping, and usual daytime sleepiness were classified as having a good, intermediate, and poor sleep. For EAC, we also examined interactions with polygenic risk score (PRS). Cox models were used to estimate hazard ratios (HR) and 95% confidence intervals (CI). RESULTS We documented 294 incident EAC and 95 ESCC. Sleep >9 h/d (HR, 2.05; 95% CI, 1.18-3.57) and sometimes daytime napping (HR, 1.36; 95% CI, 1.06-1.75) were individually associated with increased EAC risk. Compared with individuals with good sleep, those with intermediate sleep had a 47% (HR, 1.47; 95% CI, 1.13-1.91) increased EAC risk, and those with poor sleep showed an 87% (HR, 1.87; 95% CI, 1.24-2.82) higher risk (Ptrend < 0.001). The elevated risks for EAC were similar within strata of PRS (Pinteraction = 0.884). Evening chronotype was associated with elevated risk of ESCC diagnosed after 2 years of enrollment (HR, 2.79; 95% CI, 1.32-5.88). CONCLUSIONS Unhealthy sleep behaviors were associated with an increased risk of EAC, independent of genetic risk. IMPACT Sleep behaviors may serve as modifiable factors for the prevention of EAC.
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Affiliation(s)
- Xiaoyan Wang
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, USA
- Brown School, Washington University in St. Louis, St. Louis, USA
| | - Ruiyi Tian
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, USA
- Brown School, Washington University in St. Louis, St. Louis, USA
| | - Xiaoyu Zong
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, USA
| | - Myung Sik Jeon
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, USA
- Alvin J. Siteman Cancer Center, Washington University School of Medicine, St. Louis, USA
| | - Jingqin Luo
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, USA
- Alvin J. Siteman Cancer Center, Washington University School of Medicine, St. Louis, USA
| | - Graham A. Colditz
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, USA
- Alvin J. Siteman Cancer Center, Washington University School of Medicine, St. Louis, USA
| | - Jean S. Wang
- Division of Gastroenterology, Department of Medicine, Washington University School of Medicine, St. Louis, USA
| | - Konstantinos K. Tsilidis
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
- Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
| | - Yo-El S. Ju
- Center on Biological Rhythms and Sleep (COBRAS), Washington University School of Medicine, St. Louis, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, USA
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, USA
| | - Ramaswamy Govindan
- Alvin J. Siteman Cancer Center, Washington University School of Medicine, St. Louis, USA
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, USA
| | - Varun Puri
- Division of Cardiothoracic Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, USA
| | - Yin Cao
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, USA
- Alvin J. Siteman Cancer Center, Washington University School of Medicine, St. Louis, USA
- Division of Gastroenterology, Department of Medicine, Washington University School of Medicine, St. Louis, USA
- Center on Biological Rhythms and Sleep (COBRAS), Washington University School of Medicine, St. Louis, USA
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Kamyab P, Kouchaki H, Motamed M, Boroujeni ST, Akbari H, Tabrizi R. Sleep disturbance and gastrointestinal cancer risk: a literature review. J Investig Med 2023; 71:163-172. [PMID: 36645049 DOI: 10.1177/10815589221140595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Sleep, accounting for roughly one-third of a person's life, plays an important role in human health. Despite the close association between sleep patterns and medical diseases proven by several studies, it has been neglected in recent years. Presently, all societies are facing the most challenging health-threatening disease, cancer. Among all cancer types, gastrointestinal (GI) cancers, especially colorectal type, seem to be one of the most relevant to an individual's lifestyle; thus, they can be prevented by modifying behaviors most of the time. Previous studies have shown that disruption of the 24-h sleep-wake cycle increases the chance of colorectal cancer, which can be due to exposure to artificial light at night and some complex genetic and hormone-mediated mechanisms. There has also been some evidence showing the possible associations between other aspects of sleep such as sleep duration or some sleep disorders and GI cancer risk. This review brings some information together and presents a detailed discussion of the possible role of sleep patterns in GI malignancy initiation.
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Affiliation(s)
- Parnia Kamyab
- Universal Scientific Education and Research Network, Fasa University of Medical Sciences, Fasa, Iran
| | - Hosein Kouchaki
- Universal Scientific Education and Research Network, Fasa University of Medical Sciences, Fasa, Iran
| | - Mahsa Motamed
- Department of Psychiatry, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Hamed Akbari
- Department of Biochemistry, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Reza Tabrizi
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran.,Clinical Research Development Unit, Valiasr Hospital, Fasa University of Medical Sciences, Fasa, Iran.,USERN Office, Fasa University of Medical Sciences, Fasa, Iran
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HLA-DRB1: A new potential prognostic factor and therapeutic target of cutaneous melanoma and an indicator of tumor microenvironment remodeling. PLoS One 2022; 17:e0274897. [PMID: 36129956 PMCID: PMC9491554 DOI: 10.1371/journal.pone.0274897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 08/26/2022] [Indexed: 11/19/2022] Open
Abstract
Cutaneous melanoma (CM) is the most common skin cancer and one of the most aggressive cancers and its incidence has risen dramatically over the past few decades. The tumor microenvironment (TME) plays a crucial role in the occurrence and development of cutaneous melanoma. Nevertheless, the dynamics modulation of the immune and stromal components in the TME is not fully understood. In this study, 471 CM samples were obtained from TCGA database, and the ratio of tumor-infiltrating immune cells (TICs) in the TME were estimated using the ESTIMATE algorithms and CIBERSORT computational method. The differently expressed genes (DEGs) were applied to GO and KEGG function enrichment analysis, establishment of protein-protein interaction (PPI) network and univariate Cox regression analysis. Subsequently, we identified a predictive factor: HLA-DRB1 (major histocompatibility complex, class II, DR beta 1) by the intersection analysis of the hub genes of PPI network and the genes associated with the prognosis of the CM patients obtained by univariate Cox regression analysis. Correlation analysis and survival analysis showed that the expression level of HLA-DRB1 was negatively correlated with the Stage of the patients while positively correlated with the survival, prognosis and TME of melanoma. The GEPIA web server and the representative immunohistochemical images of HLA-DRB1 in the normal skin tissue and melanoma tissue from the Human Protein Atlas (HPA) database were applied to validate the expression level of HLA-DRB1. CIBERSORT analysis for the ratio of TICs indicated that 9 types of TICs were positively correlated with the expression level of HLA-DRB1 and only 4 types of TICs were negatively correlated with the expression level of HLA-DRB1. These results suggested that the expression level of HLA-DRB1 may be related to the immune activity of the TME and may affect the prognosis of CM patients by changing the status of the TME.
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Saribas S, Demiryas S, Yilmaz E, Uysal O, Kepil N, Demirci M, Caliskan R, Dinc HO, Akkus S, Gareayaghi N, Kirmusaoglu S, Ozbey D, Tokman HB, Koksal SS, Tasci I, Kocazeybek B. Association between human leukocyte antigen gene polymorphisms and multiple EPIYA-C repeats in gastrointestinal disorders. World J Gastroenterol 2020; 26:4817-4832. [PMID: 32921959 PMCID: PMC7459208 DOI: 10.3748/wjg.v26.i32.4817] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 07/02/2020] [Accepted: 08/19/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Polymorphisms of human leukocyte antigen (HLA) genes are suggested to increase the risk of gastric cancer (GC).
AIM To investigate the HLA allele frequencies of patients with GC relative to a control group in terms of CagA+ multiple (≥ 2) EPIYA-C repeats.
METHODS The patient group comprised 94 patients [44 GC and 50 duodenal ulcer (DU) patients], and the control group comprised 86 individuals [(50 non-ulcer dyspepsia patients and 36 people with asymptomatic Helicobacter pylori (H. pylori)]. Polymerase chain reaction was performed for the amplification of the H. pylori cagA gene and typing of EPIYA motifs. HLA sequence-specific oligonucleotide (SSO) typing was performed using Lifecodes SSO typing kits (HLA-A, HLA-B HLA-C, HLA-DRB1, and HLA-DQA1-B1 kits).
RESULTS The comparison of GC cases in terms of CagA+ multiple (≥ 2) EPIYA-C repeats showed that only the HLA-DQB1*06 allele [odds ratio (OR): 0.37, P = 0.036] was significantly lower, but significance was lost after correction (Pc = 0.1845). The HLA-DQA1*01 allele had a high ratio in GC cases with multiple EPIYA-C repeats, but this was not significant in the univariate analysis. We compared allele frequencies in the DU cases alone and in GC and DU cases together using the same criterion, and none of the HLA alleles were significantly associated with GC or DU. Also, none of the alleles were detected as independent risk factors after the multivariate analysis. On the other hand, in a multivariate logistic regression with no discriminative criterion, HLA-DQA1*01 (OR = 1.848), HLA-DQB1*06 (OR = 1.821) and HLA-A*02 (OR = 1.579) alleles were detected as independent risk factors for GC and DU.
CONCLUSION None of the HLA alleles were detected as independent risk factors in terms of CagA+ multiple EPIYA-C repeats. However, HLA-DQA1*01, HLA-DQB1*0601, and HLA-A*2 were independent risk factors with no criterion in the multivariate analysis. We suggest that the association of these alleles with gastric malignancies is not specifically related to cagA and multiple EPIYA C repeats.
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Affiliation(s)
- Suat Saribas
- Department of Medical Microbiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul 34098, Turkey
| | - Suleyman Demiryas
- Department of General Surgery, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul 34098, Turkey
| | - Erkan Yilmaz
- Department of Organ Transplantation, HLA Laboratory, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul 34098, Turkey
| | - Omer Uysal
- Deparment of Biostatistics, Medical School of Bezmialem Vakif University, Istanbul 34093, Turkey
| | - Nuray Kepil
- Department of Pathology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul 34098, Turkey
| | - Mehmet Demirci
- Department of Medical Microbiology, Beykent University Medical Faculty, Istanbul 34520, Turkey
| | - Reyhan Caliskan
- Department of Medical Microbiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul 34098, Turkey
| | - Harika Oyku Dinc
- Department of Medical Microbiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul 34098, Turkey
| | - Seher Akkus
- Department of Medical Microbiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul 34098, Turkey
| | - Nesrin Gareayaghi
- Center for Blood, Istanbul Sisli Hamidiye Etfal Training and Research Hospital, University of Health Sciences, Istanbul 34360, Turkey
| | - Sahra Kirmusaoglu
- Department of Molecular Biology and Genetics, T.C. Halic University, Faculty of Arts & Sciences, Istanbul 34381, Turkey
| | - Dogukan Ozbey
- Department of Medical Microbiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul 34098, Turkey
| | - Hrisi B Tokman
- Department of Medical Microbiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul 34098, Turkey
| | - Serdar S Koksal
- Department of Public Health, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul 34098, Turkey
| | - Ihsan Tasci
- Department of General Surgery, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul 34098, Turkey
| | - Bekir Kocazeybek
- Department of Medical Microbiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul 34098, Turkey
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7
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Kocak BT, Saribas S, Demiryas S, Yilmaz E, Uysal O, Kepil N, Demirci M, Dınc HO, Akkus S, Gülergün R, Gareayaghi N, Dağdeviren HE, Ozbey D, Dağ HH, Tokman HB, Tasci I, Kocazeybek B. Association between polymorphisms in HLA-A, HLA-B, HLA-DR, and DQ genes from gastric cancer and duodenal ulcer patients and cagL among cagA-positive Helicobacter pylori strains: The first study in a Turkish population. INFECTION GENETICS AND EVOLUTION 2020; 82:104288. [PMID: 32179147 DOI: 10.1016/j.meegid.2020.104288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 03/08/2020] [Accepted: 03/12/2020] [Indexed: 02/08/2023]
Abstract
Colonization of the human gastric mucosa by H. pylori may cause peptic and duodenal ulcers (DUs), gastric lymphomas, and gastric cancers. The cagL gene is a component of cag T4SS and is involved in cagA translocation into host. An association between the risk of gastric cancer and the type of HLA class II (DR and/or DQ) was suggested in different populations. The aim of this study was to investigate, the clinical association of the cagL gene with host HLA alleles in H. pylori strains that were isolated from patients with gastric cancer, DU, and non-ulcer dyspepsia (NUD) and to determine the HLA allele that confers susceptibility or resistance for the risk of gastric cancer and DU development in Turkish patients. A total of 94 patients (44 gastric cancer and 50 DU patients; 58 male, 36 female; mean age, 49.6 years), and 86 individuals (50 NUD patients and 36 persons with normal gastrointestinal system [NGIS]; 30 male, 56 female; mean age, 47.3 years) were included as the patient and the control groups, respectively. CagA and cagL were determined by PCR method. DNA from peripheral blood samples was obtained by EZ-DNA extraction kit. For HLA SSO typing, LIFECODES SSO Typing kits (HLA-A, HLA-B HLA-C, HLA-DRB1 and HLA-DQA1/B1 kits) were used. The CagL/CagA positivity distribution in the groups were as follows: 42 (95.4%) gastric cancer, 46 (92%) DU and, 34 (68%) NUD and no NGIS cases. The HLA-DQA1*01 (OR: 3.82) allele was significantly different, suggesting that these individuals with H. pylori strains harbouring the CagL/CagA positivity are susceptible to the risk of gastric cancer and DU, and the HLA-DQA1*05 (OR, 0.318) allele was suggested as a protective allele for the risk of gastric cancer and DU using univariate analyses. HLA-DQA1*01 (OR, 2.21), HLA-DQB1*06 (OR, 2.67), sex (male, OR, 2.27), and CagL/CagA/(<2) EPIYA C repeats (OR, 5.72) were detected independent risk factors that increased the risk of gastric cancer and DU using multivariate analyses. However, the HLA-DRB1*04 (OR, 0.28) allele was shown to be a protective allele, which decreased the risk of gastric cancer and DU. Gastric pathologies result from an interaction between bacterial virulence factors, host epigenetic and environmental factors, and H. pylori strain heterogeneity, such as genotypic variation among strains and variations in H. pylori populations within an individual host.
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Affiliation(s)
- Banu Tufan Kocak
- T.C. Health Ministry Erenkoy Mental Health, Neurology Training and Research Hospital, Istanbul, Turkey
| | - Suat Saribas
- Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Suleyman Demiryas
- Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of General Surgery, Istanbul, Turkey
| | - Erkan Yilmaz
- Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of Organ Transplantation, HLA Laboratory, Istanbul, Turkey
| | - Omer Uysal
- Medical School of Bezmialem, Vakif University, Deparment of Biostatistics, Istanbul, Turkey
| | - Nuray Kepil
- Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of Pathology, Istanbul, Turkey
| | - Mehmet Demirci
- Beykent University Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Harika Oyku Dınc
- Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Seher Akkus
- Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Reyhan Gülergün
- Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Nesrin Gareayaghi
- Istanbul Sisli Hamidiye Etfal Training and Research Hospital, Blood Center, University of Health Sciences, Istanbul, Turkey
| | - Hüseyin Emre Dağdeviren
- Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Dogukan Ozbey
- Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Hamit Harun Dağ
- Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Hrisi Bahar Tokman
- Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Ihsan Tasci
- Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of General Surgery, Istanbul, Turkey
| | - Bekir Kocazeybek
- Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey.
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8
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Pérez-Rodríguez M, Partida-Rodríguez O, Camorlinga-Ponce M, Flores-Luna L, Lazcano E, Gómez A, Herrera-Goepfert R, Medrano-Guzmán R, Torres J. Polymorphisms in HLA-DQ genes, together with age, sex, and Helicobacter pylori infection, as potential biomarkers for the early diagnosis of gastric cancer. Helicobacter 2017; 22. [PMID: 27334226 DOI: 10.1111/hel.12326] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Polymorphisms in inflammation-related genes are factors associated with the development of gastroduodenal diseases in Helicobacter pylori-infected individuals. MATERIALS AND METHODS We aimed to analyze polymorphisms in HLA-DQ, together with other host and H. pylori variables as risk factors for precancerous and cancerous gastric lesions. 1052 individuals were studied, including nonatrophic gastritis (NAG), intestinal metaplasia (IM), gastric cancer (GC) or duodenal ulcer (DU) patients, and healthy volunteers. RESULTS Patients with alleles DQA*01:01 (OR 0.78), *01:02 (OR 0.29), *01:03 (OR 0.31), and DQB*02:01/02 (OR 0.40) showed a reduced risk for GC. A multivariate logistic regression analyses showed that patients with homozygote genotypes DQA1*03:01 (OR 7.27) and DQA1*04:01 (OR 8.99) and DQB1*05:01:01 (OR 12.04) were at significantly increased risk for GC. Multivariate analyses also demonstrated that age (OR>10.0) and gender (OR>2.0) were variables that influenced significantly the risk for GC, while H. pylori infection (OR>2.5) increased the risk for IM. CONCLUSIONS We identified HLA-DQ alleles associated with IM and GC, and confirm that age, sex, and H. pylori infection are variables that also influence the risk for disease. The use of multiple markers, HLA-DQ alleles, age, sex, and H. pylori infection may be useful biomarkers for the early diagnosis of patients with IM and GC.
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Affiliation(s)
| | | | | | - Lourdes Flores-Luna
- Research Center in Health Population, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Eduardo Lazcano
- Research Center in Health Population, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Alejandro Gómez
- Infectious Diseases Research Unit, CMN S-XXI, IMSS, Mexico City, Mexico
| | | | | | - Javier Torres
- Infectious Diseases Research Unit, CMN S-XXI, IMSS, Mexico City, Mexico
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9
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Tseng CM, Chen YT, Tao CW, Ou SM, Hsiao YH, Li SY, Chen TJ, Perng DW, Chou KT. Adult narcoleptic patients have increased risk of cancer: A nationwide population-based study. Cancer Epidemiol 2015; 39:793-7. [PMID: 26651437 DOI: 10.1016/j.canep.2015.09.014] [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: 05/07/2015] [Revised: 09/29/2015] [Accepted: 09/30/2015] [Indexed: 12/20/2022]
Abstract
BACKGROUND The comorbidity profile, especially cancer risk, of narcoleptic patients has seldom been explored. We used a nationwide database to evaluate the risk of cancer among adult narcoleptic patients. METHODS We conducted the cohort study using National Health Insurance Research Database from 2000 to 2009. Standardized incidence ratios (SIRs) of cancers were calculated to compare the cancer incidence of the study cohort with that of the general population. RESULTS 2833 narcoleptic patients were identified after excluding patients with antecedent malignancy and age younger than 18 years old. The study cohort was observed for 15,913 person-years during a 10-year period. The median follow-up interval was 5.6 ± 3.0 years. Seventy-four cancers occurred in during the follow-up. The risk of all cancers was found significantly increased in adult narcoleptic patients (SIR 1.32; 95% CI, 1.04-1.66, p=0.0248). Regarding sex, the overall cancer risk was increased in female patients (SIR 1.52; 95% CI, 1.05-2.13, p=0.026). Furthermore, females were found to have more head and neck cancers (SIR 6.17; 95% CI, 1.66-15.80, p=0.009) and gastric cancers (SIR 4.87; 95% CI, 1.31-12.48, p=0.02). For males, the incidence of overall and specific cancer types was not significantly increased. CONCLUSIONS Adult narcoleptic patients had a higher risk for cancer. Further research is warranted to elucidate the mechanism underlying its association.
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Affiliation(s)
- Ching-Min Tseng
- Division of Respiratory Therapy, Department of Medicine, Cheng Hsin General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yung-Tai Chen
- Department of Medicine, Taipei City Hospital Heping Fuyou Branch, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chi-Wei Tao
- Division of Respiratory Therapy, Department of Medicine, Cheng Hsin General Hospital, Taipei, Taiwan
| | - Shuo-Ming Ou
- Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yi-Han Hsiao
- Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Szu-Yuan Li
- Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Tzeng-Ji Chen
- Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Diahn-Warng Perng
- Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Kun-Ta Chou
- Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan; Center of Sleep Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
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He C, Chen M, Liu J, Yuan Y. Host genetic factors respond to pathogenic step-specific virulence factors of Helicobacter pylori in gastric carcinogenesis. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2014; 759:14-26. [PMID: 24076409 DOI: 10.1016/j.mrrev.2013.09.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 09/13/2013] [Accepted: 09/13/2013] [Indexed: 12/18/2022]
Abstract
The interindividual differences in risk of Helicobacter pylori (H. pylori)-associated gastric cancer involve significant heterogeneities of both host genetics and H. pylori strains. Several recent studies proposed a distinct sequence for H. pylori exerting its virulence in the host stomach: (i) adhering to and colonizing the surface of gastric epithelial cells, (ii) evading and attenuating the host defense, and (iii) invading and damaging the gastric mucosa. This review focuses on several key issues that still need to be clarified, such as which virulence factors of H. pylori are involved in the three pathogenic steps, which host genes respond to the step-specific virulence factors, and whether and/or how the corresponding host genetic variations influence the risk of gastric carcinogenesis. Urease, BabA and SabA in the adhesion-step, PGN and LPS in the immune evasion-step, and CagA, VacA and Tipα in the mucosal damage-step were documented to play an important role in step-specific pathogenicity of H. pylori infection. There is evidence further supporting a role of potentially functional polymorphisms of host genes directly responding to these pathogenic step-specific virulence factors in the susceptibility of gastric carcinogenesis, especially for urease-interacting HLA class II genes, BabA-interacting MUC1, PGN-interacting NOD1, LPS-interacting TLR4, and CagA-interacting PTPN11 and CDH1. With the continuous improvement of understanding the genetic profile of H. pylori-associated gastric carcinogenesis, a person at increased risk for gastric cancer may benefit from several aspects of efforts: (i) prevent H. pylori infection with a vaccine targeting certain step-specific virulence factor; (ii) eradicate H. pylori infection by blocking step-specific psychopathological characteristics of virulence factors; and (iii) adjust host physiological function to resist the carcinogenic role of step-specific virulence factors or interrupt the cellular signal transduction of the interplay between H. pylori and host in each pathogenic step, especially for the subjects with precancerous lesions in the stomach.
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Affiliation(s)
- Caiyun He
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University; Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Moye Chen
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University; Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Jingwei Liu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University; Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University; Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China.
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Bednarska O, Ignatova S, Dahle C, Ström M. Intraepithelial lymphocyte distribution differs between the bulb and the second part of duodenum. BMC Gastroenterol 2013; 13:111. [PMID: 23841671 PMCID: PMC3720215 DOI: 10.1186/1471-230x-13-111] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 07/02/2013] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Evaluation of intraepithelial duodenal lymphocytosis (IDL) is important in celiac disease (CD). There is no established cut-off value for increased number of IELs in the bulb.We therefore investigated the relation between IEL counts in the bulb and duodenal specimens in non-celiac subjects. METHODS The number of CD3+ IELs was determined in specimens from the second part of the duodenum and from the bulb in 34 non-celiac subjects. The numbers of IELs in the villus tip and sides were counted and the quotient tip/side was calculated. HLA DQ2/DQ8 and serum antibodies against transglutaminase were analysed. RESULTS The mean number of IELs per 100 enterocytes (95% CI) in specimens was 14.7 (11.8-17.6) in the bulb, and 21.2 (17.0-25.5) in the second part of the duodenum (p<0.01). There was no difference in IEL count or distribution comparing patients carrying or lacking HLA DQ2/DQ8. CONCLUSIONS IEL count in non-celiac, HLA DQ2/DQ8 positive or negative patients is significantly lower in the bulb than in the second part of the duodenum. These findings implicate that the site of biopsy should be taken into account when considering duodenal lymphocytosis.
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Affiliation(s)
- Olga Bednarska
- Department of internal medicine, Oskarshamn hospital, Oskarshamn, Sweden
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12
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Wang XQ, Yan H, Terry PD, Wang JS, Cheng L, Wu WA, Hu SK. Interactions between CagA and smoking in gastric cancer. World J Gastroenterol 2011; 17:3330-4. [PMID: 21876621 PMCID: PMC3160537 DOI: 10.3748/wjg.v17.i28.3330] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Revised: 02/15/2011] [Accepted: 02/22/2011] [Indexed: 02/06/2023] Open
Abstract
AIM: To examine the interactions between cytotoxin-associated gene (CagA) positive Helicobacter pylori infection and smoking in non-cardiac gastric cancer.
METHODS: A case-control study (257 cases and 514 frequency-matched controls) was conducted from September 2008 to July 2010 in Xi’an, China. Cases were newly diagnosed, histologically confirmed non-cardiac cancer. Controls were randomly selected from similar communities to the cases and were further matched by sex and age (± 5 years). A face-to-face interview was performed by the investigators for each participant. Data were obtained using a standardized questionnaire that included questions regarding known or suspected lifestyle and environmental risk factors of gastric cancer. A 5 mL sample of fasting venous blood was taken. CagA infection was serologically detected by enzyme-linked immunosorbent assays.
RESULTS: Smoking and CagA infection were statistically significant risk factors of non-cardiac cancer. CagA was categorized in tertiles, and the odds ratio (OR) was 12.4 (95% CI: 6.1-20.3, P = 0.003) for CagA after being adjusted for confounding factors when the high-exposure category was compared with the low-exposure category. Smokers had an OR of 5.4 compared with subjects who never smoked (95% CI: 2.3-9.0, P = 0.002). The OR of non-cardiac cancer was 3.5 (95% CI: 1.8-5.3) for non-smokers with CagA infection, 3.5 (95% CI: 1.9-5.1) for smokers without CagA infection, and 8.7 (95% CI: 5.1-11.9) for smokers with CagA infection compared with subjects without these risk factors. After adjusting for confounding factors, the corresponding ORs of non-cardiac cancer were 3.2 (95% CI: 1.5-6.8), 2.7 (95% CI: 1.3-4.9) and 19.5 (95% CI: 10.3-42.2), respectively. There was a multiplicative interaction between smoking and CagA, with a synergistic factor of 2.257 (Z = 2.315, P = 0.021).
CONCLUSION: These findings support a meaningful interaction between CagA and smoking for the risk of gastric cancer which may have implications for its early detection.
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Xin YN, Lin ZH, Jiang XJ, Zhan SH, Dong QJ, Wang Q, Xuan SY. Specific HLA-DQB1 alleles associated with risk for development of hepatocellular carcinoma: A meta-analysis. World J Gastroenterol 2011; 17:2248-54. [PMID: 21633537 PMCID: PMC3092879 DOI: 10.3748/wjg.v17.i17.2248] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Revised: 12/09/2010] [Accepted: 12/16/2010] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the association of human leukocyte antigen (HLA)-DQB1 alleles with hepatocellular carcinoma (HCC) through meta-analysis of published data.
METHODS: Case-control studies on HLA-DQB1 allele association with HCC published up to January 2010 were included in the analyses. The odds ratios (ORs) of HLA-DQB1 allele distributions in HCC patients were analyzed and compared with healthy controls. The meta-analysis software REVMAN 5.0 was applied for investigating heterogeneity among individual studies and for summarizing all the studies. A meta-analysis was performed using fixed-effect or random-effect methods, depending on the absence or presence of significant heterogeneity. Seven case-control studies containing 398 cases and 594 controls were included in the final analysis.
RESULTS: Among the five family alleles, two (DQB1*02 and DQB1*03) were found to be significantly associated with the risk of HCC. The combined OR for the association of DQB1*02 and DQB1*03 allele with the risk for HCC was 1.78 (95% CI: 1.05-3.03, P = 0.03) and 0.65 (95% CI: 0.48-0.89, P = 0.007), respectively. Among the 13 specific alleles, two (DQB1*0502 and DQB1*0602) were significantly associated with risk of HCC. The combined OR for the association of DQB1*0502 and DQB1*0602 allele with the risk for HCC was 1.82 (95% CI: 1.14-2.92, P = 0.01) and 0.58 (95% CI: 0.36-0.95, P = 0.03), respectively. No significant association was established for other HLA-DQB1 family alleles and specific alleles.
CONCLUSION: Our results support the hypothesis that specific HLA-DQB1 allele families and alleles might influence the susceptibility or resistance to HCC, although it needs further investigations.
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14
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Perri F, Terracciano F, Gentile M, Merla A, Scimeca D, Zullo A. Role of interleukin polymorphisms in gastric cancer: "Pros and cons". World J Gastrointest Oncol 2010; 2:265-71. [PMID: 21160639 PMCID: PMC2999189 DOI: 10.4251/wjgo.v2.i6.265] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Revised: 12/08/2009] [Accepted: 12/15/2009] [Indexed: 02/05/2023] Open
Abstract
Helicobacter pylori (H. pylori) infection is the leading cause of gastric cancer worldwide. Infection with this bacterium causes a chronic active immune response that persists for the life of the host. The combination of bacterial factors, environmental insults, and the host immune response drives the initiation and progression of mucosal atrophy, metaplasia, and dysplasia toward GC. Among the host factors, IL-1 gene cluster polymorphisms (IL-1B encoding IL-1β and IL-1RN encoding IL-1ra, its naturally occurring receptor antagonist) play a decisive role in modulating the risk of developing hypochlorhydria, gastric atrophy and GC in the presence of H. pylori infection. In particular, one single nucleotide polymorphism in the IL-1B promoter (IL-1B-511C⁄T), and the short allele of a 86-bp variable number of tandem repeats polymorphism in the IL-1RN second intron (IL-1RN*2) are associated with an increased risk for GC. However this hypothesis is still to be fully confirmed. This review focuses on the divergent results obtained by several epidemiological and functional in vitro and in vivo studies and show that IL-1 genotyping has still no role in the clinical management of patients with H. pylori infection.
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Affiliation(s)
- Francesco Perri
- Francesco Perri, Fulvia Terracciano, Marco Gentile, Antonio Merla, Daniela Scimeca, Department of Gastroenterology and Digestive Endoscopy, "Casa Sollievo della Sofferenza" Hospital, IRCCS, 71013 San Giovanni Rotondo (FG), Italy
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15
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Yang L, Wang LJ, Shi GL, Ni L, Song CX, Zhang ZX, Xu SF. Analysis of HLA-A, HLA-B and HLA-DRB1 alleles in Chinese patients with lung cancer. GENETICS AND MOLECULAR RESEARCH 2010; 9:750-5. [PMID: 20449807 DOI: 10.4238/vol9-2gmr735] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The primary function of the human leukocyte antigen (HLA) system is to regulate the immune response. Because of its important role in the immune response and its high degree of polymorphism, the HLA system is associated with many diseases. We examined the polymorphisms of HLA-A, B and DRB1 alleles in 100 unrelated patients with lung carcinoma and in 438 unrelated normal controls of Han nationality from North China, using sequence-based typing and PCR with sequence-specific primers. We found that the frequencies of HLA-A*0201, A*2601, B*1518, B*3802, DRB1*0401, DRB1*0402, and DRB1*1201 were higher in the lung carcinoma group than in the normal control group. The P values were 0.035, 0.040, 0.001, 0.017, 0.014, 0.004, and 0.019, respectively, and the odds ratio values were 1.052, 3.513, 4.047, 3.054, 4.237, 19.397, and 2.128, respectively. The frequency of HLA-DRB1*1302 was lower in the lung carcinoma group than in the normal control group (P = 0.046, odds ratio = 0.168). We concluded that patients with lung cancer and healthy controls of Han nationality from North China differ in the frequencies of various HLA alleles.
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Affiliation(s)
- L Yang
- Department of Thoracic Surgeon, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, P.R. China
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16
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de Martel C, Plummer M, van Doorn LJ, Vivas J, Lopez G, Carillo E, Peraza S, Muñoz N, Franceschi S. Comparison of polymerase chain reaction and histopathology for the detection of Helicobacter pylori in gastric biopsies. Int J Cancer 2010; 126:1992-1996. [PMID: 19795444 DOI: 10.1002/ijc.24898] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Using data from a Venezuelan cohort of 1,948 adults, the gastric detection of Helicobacter pylori (H. pylori) by polymerase chain reaction (PCR) of the vacA gene in 1 antral biopsy was compared to the detection of H. pylori by histopathology (hematoxylin-eosin and Giemsa staining) in 5 biopsies (antrum and corpus). Overall, H. pylori was detected in 85% and 95% of the subjects by PCR and histopathology, respectively. When results were analyzed by severity of precancerous lesions, PCR on 1 biopsy detected the bacteria less often than histopathology on 5 biopsies in subjects with normal gastric mucosa and non-atrophic gastritis. However, in subjects with the most severe lesions (intestinal metaplasia type III and dysplasia), PCR on 1 biopsy detected H. pylori as often as histopathology on 5 biopsies, and significantly more often than histopathology on a single biopsy. In conclusion, these findings confirm that histopathology on 5 biopsies is an accurate tool for H. pylori detection in most subjects, compared to the PCR method on 1 biopsy. Nevertheless, the elevated sensitivity of PCR for detecting the bacteria in advanced precancerous lesions, and the possibility to use PCR to distinguish between cagA-positive and cagA-negative strains, makes the PCR technique especially useful in studies of stomach cancer.
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Affiliation(s)
| | - Martyn Plummer
- International Agency for Research on Cancer, Lyon, France
| | | | - Jorge Vivas
- Cancer Control Center of Tachira State, San Cristobal, Venezuela
| | - Gladys Lopez
- Cancer Control Center of Tachira State, San Cristobal, Venezuela
| | - Elsa Carillo
- Cancer Control Center of Tachira State, San Cristobal, Venezuela
| | - Simon Peraza
- Cancer Control Center of Tachira State, San Cristobal, Venezuela
| | - Nubia Muñoz
- Insituto Nacional de Cancerología, Bogota, Colombia
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Ando T, Ishikawa T, Kato H, Yoshida N, Naito Y, Kokura S, Yagi N, Takagi T, Handa O, Kitawaki J, Nakamura N, Hasegawa G, Fukui M, Imamoto E, Nakamura C, Oyamada H, Isozaki Y, Matsumoto N, Nagao Y, Okita M, Nakajima Y, Kurokawa M, Nukina M, Ohta M, Mizuno S, Ogata M, Obayashi H, Park H, Kitagawa Y, Nakano K, Yoshikawa T. Synergistic effect of HLA class II loci and cytokine gene polymorphisms on the risk of gastric cancer in Japanese patients with Helicobacter pylori infection. Int J Cancer 2009; 125:2595-602. [PMID: 19544559 DOI: 10.1002/ijc.24666] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
It has been reported that polymorphisms of human leukocyte antigen (HLA) genes and several cytokine genes are associated with an increased risk of developing gastric cancer (GC). However, the results of studies from different geographic regions, ethnic groups and study groups are inconsistent. The aim of this study was to evaluate the influence of H. pylori infection and host genetic factors on GC susceptibility in Japanese patients with GC. We analyzed genotypes for HLA class I and II, tumor necrosis factor alpha, interleukin (IL)-1beta, IL-1 receptor, IL-4, IL-4Ralpha and IL-10 in 330 H. pylori-infected noncardia patients with GC and 190 H. pylori-infected nonulcer dyspeptic controls. Haplotype analyses indicated that the frequencies of the HLA DRB1*0405 and DQB1*0401 alleles were increased in the patients with intestinal-type GC when compared with controls (both DRB1*0405 and DQB1*0401: p = 0.015, OR = 1.57, 95% CI = 1.09-2.26), but the changes were not statistically significant after correction for multiple comparisons. None of the cytokine gene polymorphisms were associated with GC susceptibility, whether patients with GC were analyzed as a group according to the histological subtype. Of interest was the comparison of controls and patients with intestinal-type GC. The frequency of an IL-10-592AA homozygote showing concomitant carriage of the HLA DRB1*0405-DQB1*0401 haplotype was significantly higher in patients with intestinal-type GC (chi(2) = 6.369, p = 0.0116, p(c) = 0.0464, OR = 2.43, 95% CI = 1.21-4.48). Our results suggest that the HLA class II and IL-10-592A/C polymorphisms synergistically affect the susceptibility to GC development of H. pylori-infected individuals in the Japanese population.
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Affiliation(s)
- Takashi Ando
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
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18
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Lee HW, Hahm KB, Lee JS, Ju YS, Lee KM, Lee KW. Association of the human leukocyte antigen class II alleles with chronic atrophic gastritis and gastric carcinoma in Koreans. J Dig Dis 2009; 10:265-71. [PMID: 19906105 DOI: 10.1111/j.1751-2980.2009.00395.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Gastric carcinogenesis is a multi-step process and is influenced by several etiological agents, including the host's genetic factors. Since whether a patient remains with chronic superficial gastritis (CSG) or progresses to either chronic atrophic gastritis (CAG) or gastric carcinoma (GC) could be a genetic predisposition unique in each population, we hypothesized that host human leukocyte antigen (HLA) alleles could be discriminative in predicting the risk of CSG progression to precancerous CAG and GC in Koreans. METHODS A total of 165 patients with gastric disorders (CSG, 62; CAG, 69 and GC, 34), were selected to investigate the association of HLA class II alleles with the progression of CSG to CAG or GC. HLA genotypes were obtained by the polymerase chain reaction-sequence based typing method. RESULTS The phenotypic frequencies of DRB1*1101 and DQA1*0505 were significantly higher in the CAG group compared to those in the CSG group. In the subjects with Helicobacter pylori (H. pypori) (+), the frequencies of DRB1*1501 and DQB1*0602 were significantly lower in the CAG compared to those in the CSG. Further analysis showed that sex (P < 0.05, OR = 0.41-0.42) and age (P < 0.05, OR = 1.05) also affected the risk of progression from CSG to CAG in H. pylori (+) patients carrying the DRB1*1501 or DQB1*0602 allele. Additionally, the frequency of DRB1*0404 in the GC group was significantly higher than that in the gastritis group. CONCLUSION Our findings strongly imply an association between HLA class II alleles and the risk of CAG development and GC progression in Koreans.
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Affiliation(s)
- Hae-Wan Lee
- Department of Surgery, Hallym University Sacred Heart Hospital, Anyang, Korea
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Gersuk VH, Nepom GT. A real-time polymerase chain reaction assay for the rapid identification of the autoimmune disease-associated allele HLA-DQB1*0602. ACTA ACUST UNITED AC 2009; 73:335-40. [PMID: 19317743 DOI: 10.1111/j.1399-0039.2009.01219.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Many autoimmune diseases share a genetic association with the presence or absence of human leukocyte antigen (HLA)-DQB1*0602, including type I diabetes, multiple sclerosis, and narcolepsy. High-resolution HLA typing to determine the presence of this allele is cumbersome and expensive by currently available techniques. We present a real-time polymerase chain reaction (PCR) assay for the identification of HLA-DQB1*0602, using sequence-specific primers and probes, that provides rapid and sensitive identification of this allele, involves minimal hands-on time, and provides major cost savings compared with existing methods. The assay allows the simultaneous determination of both the presence and the number of copies of this allele. Because there is no post-PCR handling, the risk of contamination is avoided. We have validated the assay using 44 blinded and 32 unblinded samples, previously typed by standard techniques, which were identified with 100% accuracy, sensitivity, and specificity. Furthermore, using a narcolepsy cohort of 722 subjects, we demonstrated the robustness of the assay to analyze DNA isolated from buccal swabs, demonstrating the applicability of this assay as a suitable approach for population-based studies.
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Affiliation(s)
- V H Gersuk
- Benaroya Research Institute at Virginia Mason, 1201 9th Avenue, Seattle, WA 98101, USA.
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20
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Crusius JBA, Canzian F, Capellá G, Peña AS, Pera G, Sala N, Agudo A, Rico F, Del Giudice G, Palli D, Plebani M, Boeing H, Bueno-de-Mesquita HB, Carneiro F, Pala V, Save VE, Vineis P, Tumino R, Panico S, Berglund G, Manjer J, Stenling R, Hallmans G, Martínez C, Dorronsoro M, Barricarte A, Navarro C, Quirós JR, Allen N, Key TJ, Binghan S, Caldas C, Linseisen J, Kaaks R, Overvad K, Tjønneland A, Büchner FC, Peeters PHM, Numans ME, Clavel-Chapelon F, Trichopoulou A, Lund E, Jenab M, Rinaldi S, Ferrari P, Riboli E, González CA. Cytokine gene polymorphisms and the risk of adenocarcinoma of the stomach in the European prospective investigation into cancer and nutrition (EPIC-EURGAST). Ann Oncol 2008; 19:1894-902. [PMID: 18628242 DOI: 10.1093/annonc/mdn400] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The relative contribution to gastric cancer (GC) risk of variants in genes that determine the inflammatory response remains mostly unknown and results from genotyping studies are inconsistent. PATIENTS AND METHODS A nested case-control study within the prospective European Prospective Investigation into Cancer and Nutrition cohort was carried out, including 248 gastric adenocarcinomas and 770 matched controls. Twenty common polymorphisms at cytokine genes [interleukin (IL)1A, IL1B, IL1RN, IL4, IL4R, IL6, IL8, IL10, IL12A, IL12B, lymphotoxin alpha and tumor necrosis factor (TNF)] were analyzed. Antibodies against Helicobacter pylori (Hp) and CagA were measured. RESULTS IL1RN 2R/2R genotype [odds ratio (OR) 2.43; 95% confidence interval (CI) 1.19-4.96] and allele IL1RN Ex5-35C were associated with an increased risk of Hp(+) non-cardia GC. IL8 -251AA genotype was associated with a decreased risk of Hp(+) non-cardia GC (OR 0.51; 95% CI 0.32-0.81), mainly of the intestinal type. These associations were not modified by CagA status. Carriers of IL1B -580C and TNF -487A alleles did not associate with an increased risk. A moderately increased risk of Hp(+) non-cardia GC for IL4R -29429T variant was observed (OR 1.74; 95% CI 1.15-2.63). CONCLUSION This prospective study confirms the association of IL1RN polymorphisms with the risk of non-cardia GC and indicates that IL8 -251T>A may modify the risk for GC.
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Affiliation(s)
- J B A Crusius
- Laboratory of Immunogenetics, Department of Pathology, VU University Medical Center, Amsterdam, The Netherlands
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Plummer M, van Doorn LJ, Franceschi S, Kleter B, Canzian F, Vivas J, Lopez G, Colin D, Muñoz N, Kato I. Helicobacter pylori cytotoxin-associated genotype and gastric precancerous lesions. J Natl Cancer Inst 2007; 99:1328-34. [PMID: 17728213 DOI: 10.1093/jnci/djm120] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Helicobacter pylori infection is associated with the development of gastric cancer. Although infection with an H. pylori strain containing the cytotoxin-associated (cag A) gene (a marker for a pathogenicity island) may increase the risk of atrophic gastritis and gastric cancer, the relationship of variants in pathogenic H. pylori genes to the severity and progression of precancerous lesions is not well defined. METHODS Gastric biopsy specimens were obtained at enrollment from 2145 participants in a chemoprevention trial in Tachira State, Venezuela, and examined histologically to determine the severity of precancerous lesions. The presence of H. pylori DNA in gastric biopsies and the strain type according to presence or absence of the cagA gene were detected by polymerase chain reaction and specific probes. The relationship between H. pylori DNA and histologic diagnosis was analyzed by polytomous logistic regression. Rates of progression and regression of precancerous lesions were determined from biopsies from additional annual gastroscopies (mean follow-up = 3.5 years). All statistical tests were two-sided. RESULTS At enrollment, there was a strong association between cagA-positive H. pylori infection and the severity of gastric precancerous lesions, but cagA-negative H. pylori was associated only with chronic gastritis. Using individuals with normal mucosa or superficial gastritis as control subjects, the odds ratio for dysplasia was 15.5 (95% confidence interval [CI] = 6.42 to 37.2) in cagA-positive individuals compared with uninfected individuals and 0.90 (95% CI = 0.37 to 2.17) for individuals infected with cagA-negative H. pylori compared with uninfected individuals. Individuals infected with cagA-positive H. pylori appeared more likely to experience progression (and less likely to experience regression) of precancerous lesions than those infected with cagA-negative H. pylori, but the differences did not attain statistical significance. CONCLUSIONS This large epidemiologic study shows a strong relationship between the presence of H. pylori DNA in gastric biopsies and the severity of precancerous lesions that is specific to cagA-positive strains. The association between H. pylori and gastric carcinoma may have been previously underestimated due to the poor accuracy of serologic H. pylori markers and lack of discrimination by cagA genotype.
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Affiliation(s)
- Martyn Plummer
- International Agency for Research on Cancer, 150 cours Albert Thomas, 69372 Lyon Cedex 08, France.
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Herrera-Goepfert R, Yamamoto-Furusho JK, Onate-Ocana LF, Camorlinga-Ponce M, Munoz L, Ruiz-Morales JA, Vargas-Alarcon G, Granados J. Role of the HLA-DQ locus in the development of chronic gastritis and gastric carcinoma in Mexican patients. World J Gastroenterol 2006; 12:7762-7. [PMID: 17203517 PMCID: PMC4087539 DOI: 10.3748/wjg.v12.i48.7762] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To determine the HLA-DQ locus in Mexican patients with Chronic gastritis and gastric adenocarcinoma.
METHODS: Oligotyping for HLA-DQ locus was performed in 45 Mexican patients with chronic gastritis and 13 Mexican patients with diffuse-type gastric adenocarcinoma, and was then compared with 99 clinically healthy unrelated individuals. H pylori infection and CagA status were assessed in patients by enzyme-linked immunosorbent assay (ELISA) method.
RESULTS: We found a significant increased frequency of HLA-DQB1*0401 allele in H pylori-positive patients with chronic gastritis when compared with healthy subjects [19 vs 0%, P = 1 × 10-7, odds ratio (OR) = 4.96; 95% confidence interval (95% CI), 3.87-6.35]. We also found a significant increased frequency of HLA-DQB1*0501 in patients with diffuse-type gastric carcinoma in comparison with healthy individuals (P = 1 × 10-6, OR = 13.07; 95% CI, 2.82-85.14).
CONCLUSION: HLA-DQ locus may play a different role in the development of H pylori-related chronic gastritis and diffuse-type gastric adenocarcinoma in the Mexican Mestizo population.
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Ignasi Elizalde J, Piqué JM. Risk assessment in relatives of gastric cancer patients: hyperproliferation, genetics, and Helicobacter pylori infection. Eur J Gastroenterol Hepatol 2006; 18:877-9. [PMID: 16825906 DOI: 10.1097/00042737-200608000-00013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Approximately 10% of cases of gastric cancer present with some kind of familial aggregation, but only 1-3% of gastric carcinomas arise as a result of clearly defined genetic syndromes that require genetic counselling and aggressive preventative measures. In the remaining families, no specific abnormalities, either genetic, biochemical or histological, responsible for the increased risk have been identified. However, several lines of evidence suggest that the increased cancer risk in first-degree relatives of gastric cancer probands is mostly dependent on Helicobacter pylori infection clustering.
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Affiliation(s)
- J Ignasi Elizalde
- Gastroenterology Department, Institut de Malalties Digestives i Metabòliques, Hospital Clinic, Universitat de Barcelona, IDIBAPS, Spain
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Puig X, Gispert R, Ginebra J, Bisbe J. [Mortality of gastric cancer in Catalonia, Spain: geographical distribution and time trends from 1986 to 2000]. Med Clin (Barc) 2006; 126:481-4. [PMID: 16624225 DOI: 10.1157/13086867] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
BACKGROUND AND OBJECTIVE The aims of this study are to describe the time trends and the changes in the spatial distribution of stomach cancer mortality by gender, in Catalonia, Spain, in the period 1986-2000. MATERIAL AND METHOD The mortality data comes from the Mortality Register for Catalonia at the Health Department and the population data from the Institute of Statistics for Catalonia. To analyze time trends, a Poisson regression model was adjusted for each gender. To analyze the geographical distribution, a Bayesian hierarchical model was used. RESULTS During the period 1986-2000 the number of deaths from stomach cancer was 8,627 for males and 5,831 for females. During this period the estimated decrease in mortality was 3.13% for males and 3.91% for females. The spatial analysis showed the lowest mortality risk areas along the coast while the mortality risk increased toward the zones in the interior. This geographical pattern is very similar for both sexes but in the lasts years of the period it has been fading. CONCLUSIONS The time trends and the geographical pattern of stomach cancer mortality in Catalonia is similar for both sexes and it is consistent with the trends observed in other developed countries. This suggests a relationship with improved food habits and a better accessibility to health care in the areas of higher risk.
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Affiliation(s)
- Xavier Puig
- Departament de Salut, Generalitat de Catalunya, Barcelona, Spain.
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Wang MF, Huang YK, Hao P, Qi Q, Wen GS, Li HL, Zhou LF. Association between HLA-DQA1 alleles and H. pyloriinfection in Bai-ethnic children from Kunming. Shijie Huaren Xiaohua Zazhi 2006; 14:442-445. [DOI: 10.11569/wcjd.v14.i4.442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To find the susceptible or resistant genes of H. pyloriinfection in Bai-ethnic children of Kunming, and to explore the immunogenetic mechanism of H. pyloriinfection.
METHODS: Polymerase chain reaction-sequence specific primers (PCR-SSP) technique was used to detect the allelic distribution of HLA-DQA1 in Bai-ethnic children with or without H. pyloriinfection (n = 32, 34, respectively) from Kunming. H. pyloriinfection was identified by combination of dot-immunogold filtration assay and immunobloting technique.
RESULTS: The allelic frequency of HLA-DQA1 *010401 or *0402 was significantly lower in children with H. pyloriinfection than that in children without H. pyloriinfection (0 vs 15%, χ2 = 0, P = 0.001, P = 0.014, OR = 1.172, 95%CI: 1.062-1.294).
CONCLUSION: HLA-DQA1*010401 or *0402 may be resistant gene of H. pyloriinfection in Bai-ethnic children from Kunming.
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