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Talayev V, Svetlova M, Zaichenko I, Voronina E, Babaykina O, Neumoina N, Perfilova K. CCR6 + T helper cells and regulatory T cells in the blood and gastric mucosa during Helicobacter pylori infection. Helicobacter 2024; 29:e13097. [PMID: 38819071 DOI: 10.1111/hel.13097] [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: 01/23/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 06/01/2024]
Abstract
BACKGROUND Helicobacter pylori (H. pylori) can evade the host's immune response and persist for a long time on the gastric mucosa. T helper (Th) cells appear to be involved in the control of H. pylori bacteria but promote mucosal inflammation. In contrast, regulatory T cells (Tregs) may reduce inflammation but promote H. pylori persistence. CC motif chemokine receptor 6 (CCR6) is involved in the migration of various cells into inflamed gastric mucosa. In this study, we examined CCR6+ Th cells and CCR6+ Tregs during H. pylori infection in humans. MATERIALS AND METHODS Isolation of cells from blood and mucosal biopsies, magnetic separation of В cells, CD4+ and CD4+CCR6+CD45RO+ T cells, antigen-specific activation, B cell response in vitro, flow cytometry, determination of CD4+CD25hiFoxP3+ Tregs and various groups of Th cells. RESULTS CD4+CCR6+ blood lymphocytes from healthy donors included Th cells and Tregs. These CCR6+ Th cells produced proinflammatory cytokines and also stimulated plasma cell maturation and antibody production in vitro. H. pylori gastritis and peptic ulcer disease were associated with an increase in the number of circulate CD4+CCR6+CD45RO+ cells and the percentage of Th1, Th17 and Th1/17 cells in this lymphocyte subgroup. In H. pylori-positive patients, circulating CD4+CCR6+ cells contained a higher proportion of H. pylori-specific cells compared with their CD4+CCR6- counterparts. H. pylori infection strongly increased the content of CD4+ lymphocytes in the inflamed gastric mucosa, with the majority of these CD4+ lymphocytes expressing CCR6. CD4+CCR6+ lymphocytes from H. pylori-infected stomach included Tregs and in vivo activated T cells, some of which produced interferon-γ without ex vivo stimulation. CONCLUSION H. pylori infection causes an increase in the number of mature CD4+CCR6+ lymphocytes in the blood, with a pro-inflammatory shift in their composition and enrichment of the gastric mucosa with CD4+CCR6+ lymphocytes, including CCR6+ Th1 cells and Tregs.
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Affiliation(s)
- Vladimir Talayev
- Academician I.N. Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology of Rospotrebnadzor, Nizhny Novgorod, Russia
| | - Maria Svetlova
- Academician I.N. Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology of Rospotrebnadzor, Nizhny Novgorod, Russia
| | - Irina Zaichenko
- Academician I.N. Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology of Rospotrebnadzor, Nizhny Novgorod, Russia
| | - Elena Voronina
- Academician I.N. Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology of Rospotrebnadzor, Nizhny Novgorod, Russia
| | - Olga Babaykina
- Academician I.N. Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology of Rospotrebnadzor, Nizhny Novgorod, Russia
| | - Natalia Neumoina
- Academician I.N. Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology of Rospotrebnadzor, Nizhny Novgorod, Russia
| | - Ksenia Perfilova
- Academician I.N. Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology of Rospotrebnadzor, Nizhny Novgorod, Russia
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Yamaoka Y. Revolution of Helicobacter pylori treatment. J Gastroenterol Hepatol 2024. [PMID: 38414319 DOI: 10.1111/jgh.16526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 02/07/2024] [Indexed: 02/29/2024]
Abstract
Helicobacter pylori infection is a major global health concern, and its management has witnessed a revolutionary shift with the emergence of antibiotic resistance. In this review, I explore the mechanisms of H. pylori antibiotic resistance and highlight the critical need for susceptibility-based eradication treatments. The increasing prevalence of antibiotic-resistant strains requires innovative approaches to combat this resilient pathogen. I also delve into the importance of mass screening as a preventive strategy for early detection and intervention, describing my experience in Bhutan. Additionally, I explore promising alternatives, such as vaccination. The aim of this review is to provide insight into the evolving landscape of H. pylori treatment and highlight the need for a paradigm shift in the approach to combating this persistent bacterial infection.
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Affiliation(s)
- Yoshio Yamaoka
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu, Japan
- The Research Center for GLOBAL and LOCAL Infectious Diseases (RCGLID), Oita University, Yufu, Japan
- Department of Medicine, Gastroenterology and Hepatology Section, Baylor College of Medicine, Houston, Texas, USA
- Division of Gastroentero-Hepatology, Department of Internal Medicine, Faculty of Medicine-Dr. Soetomo Teaching Hospital, Universitas Airlangga, Surabaya, Indonesia
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Cheng M, Zheng Y, Fan Y, Yan P, Zhao W. The contribution of IL-17A-dependent low LCN2 levels to Helicobacter pylori infection: Insights from clinical and experimental studies. Int Immunopharmacol 2023; 124:110960. [PMID: 37722259 DOI: 10.1016/j.intimp.2023.110960] [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: 07/13/2023] [Revised: 09/04/2023] [Accepted: 09/14/2023] [Indexed: 09/20/2023]
Abstract
BACKGROUND Helicobacter pylori (H. pylori) infection is a common bacterial infection that is widespread globally. It is crucial to comprehend the molecular mechanisms that underlie the infection caused by H. pylori in order to devise successful therapeutic approaches. The objective of this study was to examine the involvement of Lipocalin-2 (LCN2) in the development of H. pylori infection. METHODS LCN2 expression levels in human gastric mucosa and H. pylori-infected mouse models were analyzed using quantitative PCR and immunohistochemistry methods. The effects of LCN2 on the attachment of H. pylori to gastric mucosa cells were assessed using bacterial culture and fluorescence intensity tests. To investigate the correlation between LCN2, CCL20, and IL-17A, we performed gene expression analysis and measured serum levels. RESULTS The findings indicated an increase in LCN2 levels in the gastric mucosa of both patients and mice infected with H. pylori. Blocking the natural LCN2 resulted in an increased attachment of H. pylori to cells in the gastric mucosa. In addition, we noticed that reduced levels of LCN2 promoted the attachment of H. pylori to cells in the gastric mucosa. Furthermore, H. pylori-infected patients exhibited increased expression of both LCN2 and CCL20, and there was a positive correlation between serum levels of CCL20 and LCN2. LCN2 expression was found to depend on the presence of IL-17A, and inhibiting IL-17A led to a higher H. pylori colonization. CONCLUSION The persistence of H. pylori infection is facilitated by the presence of low levels of LCN2, which is dependent on IL-17A. This finding offers valuable perspectives for the development of novel therapeutic approaches for H. pylori infection.
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Affiliation(s)
- Mingjing Cheng
- Department of Clinical Laboratory, School of Clinical Medicine, Dali University, Dali, Yunnan, China
| | - Yong Zheng
- Department of Clinical Laboratory, First Affiliated Hospital of Dali University, Dali, Yunnan, China
| | - Yujuan Fan
- Department of Clinical Laboratory, School of Clinical Medicine, Dali University, Dali, Yunnan, China
| | - Ping Yan
- Department of Gastroenterology, First Affiliated Hospital of Dali University, Dali, Yunnan, China.
| | - Weidong Zhao
- Department of Clinical Laboratory, School of Clinical Medicine, Dali University, Dali, Yunnan, China; Department of Clinical Laboratory, Second Infectious Disease Hospital of Yunnan Province, Dali, Yunnan, China.
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Malfertheiner P, Camargo MC, El-Omar E, Liou JM, Peek R, Schulz C, Smith SI, Suerbaum S. Helicobacter pylori infection. Nat Rev Dis Primers 2023; 9:19. [PMID: 37081005 DOI: 10.1038/s41572-023-00431-8] [Citation(s) in RCA: 90] [Impact Index Per Article: 90.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/17/2023] [Indexed: 04/22/2023]
Abstract
Helicobacter pylori infection causes chronic gastritis, which can progress to severe gastroduodenal pathologies, including peptic ulcer, gastric cancer and gastric mucosa-associated lymphoid tissue lymphoma. H. pylori is usually transmitted in childhood and persists for life if untreated. The infection affects around half of the population in the world but prevalence varies according to location and sanitation standards. H. pylori has unique properties to colonize gastric epithelium in an acidic environment. The pathophysiology of H. pylori infection is dependent on complex bacterial virulence mechanisms and their interaction with the host immune system and environmental factors, resulting in distinct gastritis phenotypes that determine possible progression to different gastroduodenal pathologies. The causative role of H. pylori infection in gastric cancer development presents the opportunity for preventive screen-and-treat strategies. Invasive, endoscopy-based and non-invasive methods, including breath, stool and serological tests, are used in the diagnosis of H. pylori infection. Their use depends on the specific individual patient history and local availability. H. pylori treatment consists of a strong acid suppressant in various combinations with antibiotics and/or bismuth. The dramatic increase in resistance to key antibiotics used in H. pylori eradication demands antibiotic susceptibility testing, surveillance of resistance and antibiotic stewardship.
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Affiliation(s)
- Peter Malfertheiner
- Medical Department II, University Hospital, Ludwig-Maximilians-Universität, Munich, Germany.
- Medical Department Klinik of Gastroenterology, Hepatology and Infectiology, Otto-von-Guericke Universität, Magdeburg, Germany.
| | - M Constanza Camargo
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Emad El-Omar
- Microbiome Research Centre, St George & Sutherland Clinical Campuses, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, New South Wales, Australia
| | - Jyh-Ming Liou
- Department of Internal Medicine, National Taiwan University Cancer Center, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Richard Peek
- Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Christian Schulz
- Medical Department II, University Hospital, Ludwig-Maximilians-Universität, Munich, Germany
- DZIF Deutsches Zentrum für Infektionsforschung, Partner Site Munich, Munich, Germany
| | - Stella I Smith
- Department of Molecular Biology and Biotechnology, Nigerian Institute of Medical Research, Yaba, Lagos, Nigeria
| | - Sebastian Suerbaum
- DZIF Deutsches Zentrum für Infektionsforschung, Partner Site Munich, Munich, Germany
- Max von Pettenkofer Institute, Faculty of Medicine, Ludwig-Maximilians-Universität, Munich, Germany
- National Reference Center for Helicobacter pylori, Munich, Germany
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The Association of Helicobacter pylori, Eradication, and Early Complications of Laparoscopic Sleeve Gastrectomy. Obes Surg 2022; 32:1617-1623. [PMID: 35278191 DOI: 10.1007/s11695-022-05996-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/05/2022] [Accepted: 03/09/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE Laparoscopic sleeve gastrectomy (SG) is a common and effective bariatric surgery, with low postoperative complication rates. It is important to define modifiable risk factors for complications. The possible association of Helicobacter pylori (HP) on SG outcomes is still being investigated. We aimed to examine HP prevalence in SG specimens, the association to early (30-day) complications, and impact of preoperative HP eradication on outcomes. MATERIALS AND METHODS This is a retrospective analysis of all consecutive patients who underwent SG between January 2012 and December 2020 in a single bariatric center. Data were retrieved from our prospectively maintained patient registry database. The 30-day outcomes were compared according to the HP status of the resected specimen: positive and negative, with or without preoperative HP eradication therapy. RESULTS There were 1985 patients; of them, 179 patients were HP positive and 1806 were HP negative in resected specimens. The overall early complication and major (Clavien-Dindo ≥ 3) complication rates were 8.6% and 3.2% (p = 0.48 and p = 0.21), respectively. A total of 111 patients were HP positive on preoperative endoscopic biopsy and received eradication therapy. All were HP negative on preoperative urea breath test, and 65.45% had HP negative resected specimens. HP eradication did not affect overall and major complications (p = 0.68 and p = 0.48, respectively). CONCLUSION The presence of HP does not seem to affect the early outcomes of SG. HP eradication does not change the early postoperative course either. Therefore, the role of routine preoperative HP screening may be limited, and eradication can be completed following SG.
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Tshibangu-Kabamba E, Yamaoka Y. Helicobacter pylori infection and antibiotic resistance - from biology to clinical implications. Nat Rev Gastroenterol Hepatol 2021; 18:613-629. [PMID: 34002081 DOI: 10.1038/s41575-021-00449-x] [Citation(s) in RCA: 183] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/31/2021] [Indexed: 02/06/2023]
Abstract
Helicobacter pylori is a major human pathogen for which increasing antibiotic resistance constitutes a serious threat to human health. Molecular mechanisms underlying this resistance have been intensively studied and are discussed in this Review. Three profiles of resistance - single drug resistance, multidrug resistance and heteroresistance - seem to occur, probably with overlapping fundamental mechanisms and clinical implications. The mechanisms that have been most studied are related to mutational changes encoded chromosomally and disrupt the cellular activity of antibiotics through target-mediated mechanisms. Other biological attributes driving drug resistance in H. pylori have been less explored and this could imply more complex physiological changes (such as impaired regulation of drug uptake and/or efflux, or biofilm and coccoid formation) that remain largely elusive. Resistance-related attributes deployed by the pathogen cause treatment failures, diagnostic difficulties and ambiguity in clinical interpretation of therapeutic outcomes. Subsequent to the increasing antibiotic resistance, a substantial drop in H. pylori treatment efficacy has been noted globally. In the absence of an efficient vaccine, enhanced efforts are needed for setting new treatment strategies and for a better understanding of the emergence and spread of drug-resistant bacteria, as well as for improving diagnostic tools that can help optimize current antimicrobial regimens.
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Affiliation(s)
| | - Yoshio Yamaoka
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Oita, Japan. .,Department of Medicine, Gastroenterology and Hepatology Section, Baylor College of Medicine, Houston, TX, USA.
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Pierro A, Etienne E, Gerbaud G, Guigliarelli B, Ciurli S, Belle V, Zambelli B, Mileo E. Nickel and GTP Modulate Helicobacter pylori UreG Structural Flexibility. Biomolecules 2020; 10:E1062. [PMID: 32708696 PMCID: PMC7408563 DOI: 10.3390/biom10071062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 06/25/2020] [Accepted: 07/10/2020] [Indexed: 12/14/2022] Open
Abstract
UreG is a P-loop GTP hydrolase involved in the maturation of nickel-containing urease, an essential enzyme found in plants, fungi, bacteria, and archaea. This protein couples the hydrolysis of GTP to the delivery of Ni(II) into the active site of apo-urease, interacting with other urease chaperones in a multi-protein complex necessary for enzyme activation. Whereas the conformation of Helicobacter pylori (Hp) UreG was solved by crystallography when it is in complex with two other chaperones, in solution the protein was found in a disordered and flexible form, defining it as an intrinsically disordered enzyme and indicating that the well-folded structure found in the crystal state does not fully reflect the behavior of the protein in solution. Here, isothermal titration calorimetry and site-directed spin labeling coupled to electron paramagnetic spectroscopy were successfully combined to investigate HpUreG structural dynamics in solution and the effect of Ni(II) and GTP on protein mobility. The results demonstrate that, although the protein maintains a flexible behavior in the metal and nucleotide bound forms, concomitant addition of Ni(II) and GTP exerts a structural change through the crosstalk of different protein regions.
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Affiliation(s)
- Annalisa Pierro
- Aix Marseille Univ, CNRS, BIP, Bioénergétique et Ingénierie des Protéines, IMM, Marseille, France; (A.P.); (E.E.); (G.G.); (B.G.); (V.B.)
| | - Emilien Etienne
- Aix Marseille Univ, CNRS, BIP, Bioénergétique et Ingénierie des Protéines, IMM, Marseille, France; (A.P.); (E.E.); (G.G.); (B.G.); (V.B.)
| | - Guillaume Gerbaud
- Aix Marseille Univ, CNRS, BIP, Bioénergétique et Ingénierie des Protéines, IMM, Marseille, France; (A.P.); (E.E.); (G.G.); (B.G.); (V.B.)
| | - Bruno Guigliarelli
- Aix Marseille Univ, CNRS, BIP, Bioénergétique et Ingénierie des Protéines, IMM, Marseille, France; (A.P.); (E.E.); (G.G.); (B.G.); (V.B.)
| | - Stefano Ciurli
- Laboratory of Bioinorganic Chemistry, Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy;
| | - Valérie Belle
- Aix Marseille Univ, CNRS, BIP, Bioénergétique et Ingénierie des Protéines, IMM, Marseille, France; (A.P.); (E.E.); (G.G.); (B.G.); (V.B.)
| | - Barbara Zambelli
- Laboratory of Bioinorganic Chemistry, Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy;
| | - Elisabetta Mileo
- Aix Marseille Univ, CNRS, BIP, Bioénergétique et Ingénierie des Protéines, IMM, Marseille, France; (A.P.); (E.E.); (G.G.); (B.G.); (V.B.)
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Zizzi CF, Pellicano R, Biancone L. The relationship between Helicobacter pylori and chronic kidney disease: update 2020. MINERVA GASTROENTERO 2020; 66:343-349. [PMID: 32623870 DOI: 10.23736/s1121-421x.20.02729-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A number of studies has confirmed that the epidemiology of Helicobacter pylori is changing worldwide, with a decrease especially in developed countries. Nevertheless, since this gram-negative bacterium infects almost 50% of the world's population, it remains a global problem. Beyond its role in the pathogenesis of the main gastroduodenal diseases, including gastritis, peptic ulcer and gastric cancer, Helicobacter pylori has been suspected to be involved in several extra-gastroduodenal disorders. Patients with chronic kidney disease (CKD) present gastric mucosal injuries and dyspepsia more often than the general population. However, the reported relationship between CKD and Helicobacter pylori infection is conflicting. In fact, in this population these conditions have a multifactorial pathogenesis and Helicobacter pylori infection could play a limited role in their development. Nevertheless, while it seems that the prevalence of the bacterium is lower in patients with CKD than in controls, Helicobacter pylori has been shown to be associated to an increased occurrence of proteinuria in patients with type 2 diabetes mellitus. This narrative review analyzes the results of recent literature in this field with particular focus on data reported by meta-analyses.
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Affiliation(s)
- Carlotta F Zizzi
- A. Vercellone Renal Transplantation Center, Division of Nephrology Dialysis and Transplantation, Department of Medical Sciences, Molinette Hospital, Città della Salute e della Scienza, Turin, Italy -
| | - Rinaldo Pellicano
- Unit of Gastroenterology, Molinette Hospital, Città della Salute e della Scienza, Turin, Italy
| | - Luigi Biancone
- A. Vercellone Renal Transplantation Center, Division of Nephrology Dialysis and Transplantation, Department of Medical Sciences, Molinette Hospital, Città della Salute e della Scienza, Turin, Italy
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Guillermo Espinoza-Contreras J, Idalia Torres-Ruiz M, Ariel Waller-González L, De Jesús Ramírez-García J, Torres-López J, Ventura-Juárez J, Verónica Moreno-Córdova E, Ernesto López-Ramos J, Humberto Muñoz-Ortega M, Eugenia Vargas-Camaño M, González-Segovia R. Immunological markers and Helicobacter pylori in patients with stomach cancer: Expression and correlation. Biomed Rep 2020; 12:233-243. [PMID: 32257186 PMCID: PMC7100142 DOI: 10.3892/br.2020.1285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 01/17/2020] [Indexed: 01/22/2023] Open
Abstract
Programmed death-ligand 1 (PD-L1) and ICOS-L (also referred to as B7 homolog 1 and 2, respectively) modulate the immune inflammatory response. The aim of the present study was to examine the expression levels of these inflammatory mediators in two groups of patients with an Helicobacter pylori (H. pylori) infection; patients with and without gastric cancer. The association between bacterial virulence factors, CagA and VacA, was also examined, as well as their correlation with the inflammatory profile. Endoscopy analysis indicated that 18 patients suffered from cancer and 28 patients suffered from other gastric pathologies. PCR and reverse transcription-quantitative PCR were used to analyze gastric biopsies and determine the expression levels of the inflammatory modulators PD-L1 and ICOS-L, transcription factors, cytokines and other genes associated with inflammation and pathogenicity. All 46 patients were determined positive for markers of H. pylori. Patients with stomach cancer had lower levels of ICOS-L (P<0.05) and GATA3 (P<0.01), a negative correlation between CagA and IL-17 (P<0.05), a positive correlation between CagA and IL-10 (P<0.05), a negative correlation between vacA-m1 and retinoid orphan receptor γt (RORγt) (P<0.001), and a positive correlation between RORγt and ICOS-L (P<0.001). The reduced levels of ICOS-L and GATA3 along with the negative correlation between CagA and IL-17, and between vacA-m1 and RORγt were all associated with an increased risk of gastric cancer in the present cohort.
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Affiliation(s)
| | - Miriam Idalia Torres-Ruiz
- Departamento de Endoscopia, Centro Médico Nacional 20 de Noviembre ISSSTE, Ciudad de México, CP 03229, México
| | - Luis Ariel Waller-González
- Departamento de Endoscopia, Centro Médico Nacional 20 de Noviembre ISSSTE, Ciudad de México, CP 03229, México
| | | | - Javier Torres-López
- Unidad de Investigación Médica en Enfermedades Infecciosas y Parasitarias UMAE, Hospital de Pediatría, IMSS, Ciudad de México, CP 06720, México
| | - Javier Ventura-Juárez
- Departamento de Morfología, Universidad Autónoma de Aguascalientes, Aguascalientes Ags, CP 20131, México
| | | | - Juan Ernesto López-Ramos
- Departamento de Microbiología, Universidad Autónoma de Aguascalientes, Aguascalientes Ags, CP 20131, México
| | | | - María Eugenia Vargas-Camaño
- Servicio de Inmunología Clínica y Alergía, Centro Médico Nacional 20 Noviembre ISSSTE, Ciudad de México, CP 03229, México
| | - Rodolfo González-Segovia
- Departamento de Microbiología, Universidad Autónoma de Aguascalientes, Aguascalientes Ags, CP 20131, México
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Liu M, Zhong Y, Chen J, Liu Y, Tang C, Wang X, Zhang Y, Wang P, Logan SM, Chen W, Wei B. Oral immunization of mice with a multivalent therapeutic subunit vaccine protects against Helicobacter pylori infection. Vaccine 2020; 38:3031-3041. [PMID: 32139315 DOI: 10.1016/j.vaccine.2020.02.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 02/10/2020] [Accepted: 02/12/2020] [Indexed: 02/08/2023]
Abstract
Helicobacter pylori is a human class I carcinogen and no effective prophylactic or therapeutic H. pylori vaccine has yet been marketed. H. pylori can escape the host immune response, but the precise immune protection mechanisms in humans remain unknown. In this study, we developed a multivalent, subunit H. pylori vaccine candidate by formulating three commonly used H. pylori antigens, neutrophil-activating protein (NAP), urease subunit A (UreA) and subunit B (UreB) with the mucosal adjuvant, a double-mutant heat-labile toxin (dmLT) from Escherichia coli, and evaluated its immunogenicity and therapeutic efficacy in a mouse model of H. pylori infection. We found that oral immunization of H. pylori-infected mice significantly reduced gastric bacterial colonization at both 2 and 8 weeks after immunization. The reduction in bacterial burdens was accompanied with significantly increased serum antigen-specific IgG responses and mucosal IgA responses. Moreover, oral immunization also induced Th1/Th17 immune responses, which may play a synergistic role with the specific antibodies in the elimination of H. pylori. Thus, our vaccine candidate appears able to overcome the immune evasion mechanism of H. pylori, restore the suppression of Th2 immune responses with the induction of a strong humoral immune response. These results lay the foundation for the development of an optimized oral therapeutic H. pylori vaccine with increased immunogenicity of UreA and UreB, as well as providing long-term immunity.
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Affiliation(s)
- Meiying Liu
- National Vaccine and Serum Institute (NVSI), 38 Jinghai 2nd Road, Beijing Economic and Technological Development Zone, Beijing, China
| | - Youxiu Zhong
- National Vaccine and Serum Institute (NVSI), 38 Jinghai 2nd Road, Beijing Economic and Technological Development Zone, Beijing, China
| | - Jing Chen
- National Vaccine and Serum Institute (NVSI), 38 Jinghai 2nd Road, Beijing Economic and Technological Development Zone, Beijing, China
| | - Yu Liu
- National Vaccine and Serum Institute (NVSI), 38 Jinghai 2nd Road, Beijing Economic and Technological Development Zone, Beijing, China
| | - Chongfa Tang
- National Vaccine and Serum Institute (NVSI), 38 Jinghai 2nd Road, Beijing Economic and Technological Development Zone, Beijing, China
| | - Xuewei Wang
- National Vaccine and Serum Institute (NVSI), 38 Jinghai 2nd Road, Beijing Economic and Technological Development Zone, Beijing, China
| | - Yanbin Zhang
- National Vaccine and Serum Institute (NVSI), 38 Jinghai 2nd Road, Beijing Economic and Technological Development Zone, Beijing, China
| | - Ping Wang
- National Vaccine and Serum Institute (NVSI), 38 Jinghai 2nd Road, Beijing Economic and Technological Development Zone, Beijing, China
| | - Susan M Logan
- Human Health Therapeutics (HHT) Research Center, National Research Council Canada, 100 Sussex Drive, Ottawa, ON K1A 0R6, Canada
| | - Wangxue Chen
- Human Health Therapeutics (HHT) Research Center, National Research Council Canada, 100 Sussex Drive, Ottawa, ON K1A 0R6, Canada.
| | - Bo Wei
- National Vaccine and Serum Institute (NVSI), 38 Jinghai 2nd Road, Beijing Economic and Technological Development Zone, Beijing, China.
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H.pylori Infection Alleviates Acute and Chronic Colitis with the Expansion of Regulatory B Cells in Mice. Inflammation 2020; 42:1611-1621. [PMID: 31377948 DOI: 10.1007/s10753-019-01022-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Epidemiological studies showed that there was an inverse relationship between Helicobacter pylori (H. pylori) infection and the incidence of inflammatory bowel diseases (IBD). Our previous research indicated that the regulatory immune responses induced by H. pylori infection were not limited to gastric mucosa, and the balance of intestinal mucosal immunity was influenced. In this study, mice were infected with H. pylori SS1, and then colitis was induced by 3% dextran sulphate sodium (DSS), to investigate the role of the regulatory B cells in the effects of H. pylori infection on acute and chronic colitis. In acute and chronic colitis groups, DAI and colonic histological scores reduced significantly and colon length shorted less, the proinflammatory cytokines mRNA expression downregulated in colonic mucosa, and the percentages of CD19+IL-10+Breg cells were higher in the H. pylori/DSS co-treated groups compared with the DSS-treated groups. Our study suggests that H. pylori infection can alleviate the acute and chronic colitis induced by DSS, and CD19+IL-10+Breg cells may play a critical role in the alleviation of acute and chronic colitis following H. pylori infection.
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Abstract
Helicobacter pylori is a Gram-negative bacterium that infects the gastric epithelia of its human host. Everyone who is colonized with these pathogenic bacteria can develop gastric inflammation, termed gastritis. Additionally, a small proportion of colonized people develop more adverse outcomes, including gastric ulcer disease, gastric adenocarcinoma, or gastric mucosa-associated lymphoid tissue lymphoma. The development of these adverse outcomes is dependent on the establishment of a chronic inflammatory response. The development and control of this chronic inflammatory response are significantly impacted by CD4+ T helper cell activity. Noteworthy, T helper 17 (Th17) cells, a proinflammatory subset of CD4+ T cells, produce several proinflammatory cytokines that activate innate immune cell antimicrobial activity, drive a pathogenic immune response, regulate B cell responses, and participate in wound healing. Therefore, this review was written to take an intricate look at the involvement of Th17 cells and their affiliated cytokines (interleukin-17A [IL-17A], IL-17F, IL-21, IL-22, and IL-26) in regulating the immune response to H. pylori colonization and carcinogenesis.
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13
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Wu YY, Hsieh CT, Tsay GJ, Kao JT, Chiu YM, Shieh DC, Lee YJ. Recruitment of CCR6 + Foxp3 + regulatory gastric infiltrating lymphocytes in Helicobacter pylori gastritis. Helicobacter 2019; 24:e12550. [PMID: 30412323 DOI: 10.1111/hel.12550] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 09/09/2018] [Accepted: 09/10/2018] [Indexed: 12/17/2022]
Abstract
Helicobacter pylori (H. pylori) infection is associated with an inflammatory response in the gastric mucosa, leading to chronic gastritis, peptic ulcers, and gastric cancer. Increased T-cell infiltration is found at sites of H. pylori infection. The CCR6+ subset of CD4+ regulatory T cells (Tregs), a newly characterized subset of Tregs, has been reported to contribute to local immune inhibition. However, whether CCR6+ Tregs are present in H. pylori gastritis, and what their relationship is to disease prognosis, remains to be elucidated. In this study, gastric infiltrating lymphocytes were isolated from endoscopic biopsy specimens of H. pylori gastritis patients and analyzed. We found that in gastric infiltrating lymphocytes, CCR6+ CD4+ CD25high Tregs, which express high levels of CD45RO, are positively associated with more severe inflammation in gastric mucosa during H. pylori infection. Furthermore, the frequency of CCR6+ Tregs in gastric infiltrating lymphocytes, but not CCR6- Tregs, is significantly increased in inflamed gastric tissues, which is inversely correlated with significantly lower expression of IFN-γ+ CD8+ T cells. We also found that the frequency of CCR6+ Tregs is positively correlated with the frequency of CD4+ IFN-γ+ T cells. In addition, the frequency of CCR6+ Tregs, but not that of CCR6- Tregs, is significantly correlated with increased inflammation in H. pylori gastritis. This study demonstrates that immunosuppression in H. pylori gastritis might be related to the activity of CCR6+ Tregs, which could influence disease prognosis.
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Affiliation(s)
- Yi-Ying Wu
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan.,Chinese Medicine Research Center, China Medical University, Taichung, Taiwan.,Research Center for Chinese Herbal Medicine, China Medical University, Taichung, Taiwan
| | - Chin-Tung Hsieh
- Department of Pediatrics, Lotung Poh-Ai Hospital, I-Lan, Taiwan
| | - Gregory J Tsay
- Division of Immunology and Rheumatology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan.,Department of Internal Medicine, School of Medicine, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Jung-Ta Kao
- Department of Internal Medicine, School of Medicine, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
| | - Ying-Ming Chiu
- Department of Nursing, College of Nursing, Hungkuang University, Taichung, Taiwan.,Division of Allergy, Immunology & Rheumatology, Changhua Christian Hospital, Changhua, Taiwan
| | - Dong-Chen Shieh
- Department of Nursing, College of Nursing, Hungkuang University, Taichung, Taiwan
| | - Yi-Ju Lee
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan
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Shi Y, Duan JY, Liu DW, Qiao YJ, Han QX, Pan SK, Tang L, Cai GY, Chen XM, Liu ZS, Zhu HY. Helicobacter pylori Infection is Associated with Occurrence of Proteinuria in Type 2 Diabetes Patients: A Systemic Review and Meta-Analysis. Chin Med J (Engl) 2018; 131:2734-2740. [PMID: 30425200 PMCID: PMC6247588 DOI: 10.4103/0366-6999.245269] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Type 2 diabetes (T2DM) patients are susceptible to Helicobacter pylori (HP), and it has been reported that the occurrence of proteinuria is associated with HP infection in T2DM patients; however, this view remains controversial. This meta-analysis aimed to explore the association between HP infection and the occurrence of proteinuria in T2DM patients. In addition, we hope to provide some recommendations to readers in clinical or related fields. METHODS Our meta-analysis was conducted with the methodology of the Cochrane Collaboration. Search strategies were formulated by relevant professionals. Case-control studies that compared the occurrence of proteinuria in T2DM patients with and without HP infection were involved in our meta-analysis. Relevant English or Chinese studies were searched on online databases before 2018, including PubMed, the Cochrane library, Medline, Google Scholar, the China National Infrastructure, and Wanfang database. The search strategies were "diabetic proteinuria, diabetic microalbuminuria, diabetic albuminuria, diabetic kidney disease, diabetic renal dysfunction, diabetic renal disease, diabetic nephropathy, diabetic complications, and diabetic mellitus, combined with HP." The quality of these involved articles was separately assessed by two investigators using the Newcastle-Ottawa Scale (NOS). Odds ratios (ORs) and associated 95% confidence intervals (CIs) were extracted and pooled using fixed-effects models. RESULTS Seven studies involving 1029 participants were included. The quality of these seven articles was all above five stars as assessed by NOS, and there was no significant publication bias in our meta-analysis. We found that T2DM patients with HP infection had a 2.00 times higher risk of the occurrence of proteinuria than patients without HP infection (OR: 2.00, 95% CI: 1.48-2.69). CONCLUSIONS Our analysis showed that HP infection was associated with the occurrence of proteinuria in T2DM patients. HP radical surgery might be a therapeutic option for protecting kidney function in patients with T2DM.
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Affiliation(s)
- Yan Shi
- Department of Nephrology, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing 100853, China
- Department of Nephrology, Zhengzhou University; The First Affiliated Hospital of Zhengzhou University, Research Institute of Nephrology, Key Laboratory of Accurate Diagnosis and Treatment of Chronic Kidney Diseases in Henan Province, Core Unit of National Kidney Disease Clinical Medical Research Center, Zhengzhou, Henan 450052, China
| | - Jia-Yu Duan
- Department of Nephrology, Zhengzhou University; The First Affiliated Hospital of Zhengzhou University, Research Institute of Nephrology, Key Laboratory of Accurate Diagnosis and Treatment of Chronic Kidney Diseases in Henan Province, Core Unit of National Kidney Disease Clinical Medical Research Center, Zhengzhou, Henan 450052, China
| | - Dong-Wei Liu
- Department of Nephrology, Zhengzhou University; The First Affiliated Hospital of Zhengzhou University, Research Institute of Nephrology, Key Laboratory of Accurate Diagnosis and Treatment of Chronic Kidney Diseases in Henan Province, Core Unit of National Kidney Disease Clinical Medical Research Center, Zhengzhou, Henan 450052, China
| | - Ying-Jin Qiao
- Department of Nephrology, Zhengzhou University; The First Affiliated Hospital of Zhengzhou University, Research Institute of Nephrology, Key Laboratory of Accurate Diagnosis and Treatment of Chronic Kidney Diseases in Henan Province, Core Unit of National Kidney Disease Clinical Medical Research Center, Zhengzhou, Henan 450052, China
| | - Qiu-Xia Han
- Department of Nephrology, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing 100853, China
- Department of Nephrology, Zhengzhou University; The First Affiliated Hospital of Zhengzhou University, Research Institute of Nephrology, Key Laboratory of Accurate Diagnosis and Treatment of Chronic Kidney Diseases in Henan Province, Core Unit of National Kidney Disease Clinical Medical Research Center, Zhengzhou, Henan 450052, China
| | - Shao-Kang Pan
- Department of Nephrology, Zhengzhou University; The First Affiliated Hospital of Zhengzhou University, Research Institute of Nephrology, Key Laboratory of Accurate Diagnosis and Treatment of Chronic Kidney Diseases in Henan Province, Core Unit of National Kidney Disease Clinical Medical Research Center, Zhengzhou, Henan 450052, China
| | - Li Tang
- Department of Nephrology, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing 100853, China
| | - Guang-Yan Cai
- Department of Nephrology, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing 100853, China
| | - Xiang-Mei Chen
- Department of Nephrology, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing 100853, China
| | - Zhang-Suo Liu
- Department of Nephrology, Zhengzhou University; The First Affiliated Hospital of Zhengzhou University, Research Institute of Nephrology, Key Laboratory of Accurate Diagnosis and Treatment of Chronic Kidney Diseases in Henan Province, Core Unit of National Kidney Disease Clinical Medical Research Center, Zhengzhou, Henan 450052, China
| | - Han-Yu Zhu
- Department of Nephrology, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing 100853, China
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15
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Bassagh A, Hayatbakhsh Abasi M, Larussa T, Ghazizadeh M, Nemati M, Mirkamandar E, Jafarzadeh A. Diminished circulating concentration of interleukin-35 in Helicobacter pylori-infected patients with peptic ulcer: Its association with FOXP3 gene polymorphism, bacterial virulence factor CagA, and gender of patients. Helicobacter 2018; 23:e12501. [PMID: 29938865 DOI: 10.1111/hel.12501] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND IL-35 modulates immune and inflammatory responses during infections. Here, we investigated IL-35 levels and a single nucleotide polymorphism, rs3761548, in FOXP3 gene in Helicobacter pylori-infected patients with peptic ulcer (PU), to clarify possible associations. MATERIALS AND METHODS This study includes 100 H. pylori-infected PU patients, 100 H. pylori-infected asymptomatic subjects (AS), and 100 noninfected healthy subjects (NHSs). Serum IL-35 levels and the genotyping were determined using ELISA and RFLP-PCR methods, respectively. RESULTS In PU patients, the IL-35 levels were lower than AS and NHS groups (P < .001). The IL-35 levels in CagA+ H. pylori-infected participants from PU and AS groups were lower than individuals infected with CagA- strains (P < .02 and P < .04, respectively). Women had higher IL-35 levels than men among PU, AS, and NHS groups (P < .0001). In PU patients, AA genotype and A allele at rs3761548 were more frequent than total healthy subjects (AS + NHS groups) and associated with an increased PU risk (AA genotype: OR = 5.51, P < .0001; A allele: OR = 3.857, P < .002). In PU and AS groups, IL-35 levels were lower in subjects displaying AA genotype or A allele than subjects displaying CC genotype or C allele, respectively (P < .0001 and P < .03 for PU patients; P < .001 and P < .02 for AS group, respectively). CONCLUSIONS Decreased IL-35 levels could be involved in PU development in H. pylori-infected individuals. IL-35 levels are affected by CagA status of H. pylori, participants gender, and genetic variations at rs3761548. The AA genotype and A allele at rs3761548 could represent a risk factor for PU development.
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Affiliation(s)
- Arezoo Bassagh
- Department of Immunology, Medical School, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Tiziana Larussa
- Department of Health Sciences, University of Catanzaro "Magna Graecia", Catanzaro, Italy
| | | | - Maryam Nemati
- Department of Haematology and Laboratory Sciences, School of Para-Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Ehsan Mirkamandar
- Department of Haematology and Laboratory Sciences, School of Para-Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Abdollah Jafarzadeh
- Department of Immunology, Medical School, Kerman University of Medical Sciences, Kerman, Iran.,Immunology of Infectious Diseases Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
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16
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Liu H, Liu W, Tan Z, Zeng Z, Yang H, Luo S, Wang L, Xi T, Xing Y. Promoting Immune Efficacy of the Oral Helicobacter pylori Vaccine by HP55/PBCA Nanoparticles against the Gastrointestinal Environment. Mol Pharm 2018; 15:3177-3186. [PMID: 30011213 DOI: 10.1021/acs.molpharmaceut.8b00251] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The immunogenicity of oral subunit vaccines is poor partly as a result of the harsh milieu of the gastrointestinal (GI) tract. For some pathogens that restrictedly inhabit the GI tract, a vaccine that works in situ may provide more potent protection than vaccines that operate parenterally. Yet, no appropriate delivery system is available for oral subunit vaccines. In this study, we designed HP55/poly( n-butylcyanoacrylate) (PBCA) nanoparticles (NPs) to carry Helicobacter pylori ( H. pylori) subunit vaccine CCF for oral administration in a prophylactic mice model. These NPs, which are synthesized using an interfacial polymerization method, protected the CCF antigen not only from the acidic pH in simulated gastric fluid (SGF, pH 1.2) but also from the proteolysis in simulated intestinal fluid (SIF, pH 7.4). Oral vaccination of mice with HP55/PBCA-CCF NPs promoted the production of serum antigen-specific antibodies, mucosal secretory IgA, and proinflammatory cytokines. Moreover, a Th1/Th17 response and augmented lymphocytes were found in the gastric tissue of HP55/PBCA-CCF NP-immunized mice, which might eventually limit H. pylori colonization. Collectively, these results indicate that HP55/PBCA NPs are promising carriers against the severe situation of the GI tract and thereby may be further utilized for other orally administrated vaccines or drugs.
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Affiliation(s)
- Hai Liu
- School of Life Science and Technology and Jiangsu Key Laboratory of Carcinogenesis and Intervention , China Pharmaceutical University , No.24 Tongjia xiang , Nanjing 210009 , PR China
| | - Wei Liu
- School of Life Science and Technology and Jiangsu Key Laboratory of Carcinogenesis and Intervention , China Pharmaceutical University , No.24 Tongjia xiang , Nanjing 210009 , PR China
| | - Zhoulin Tan
- School of Life Science and Technology and Jiangsu Key Laboratory of Carcinogenesis and Intervention , China Pharmaceutical University , No.24 Tongjia xiang , Nanjing 210009 , PR China
| | - Zhiqin Zeng
- School of Life Science and Technology and Jiangsu Key Laboratory of Carcinogenesis and Intervention , China Pharmaceutical University , No.24 Tongjia xiang , Nanjing 210009 , PR China
| | - Huimin Yang
- School of Life Science and Technology and Jiangsu Key Laboratory of Carcinogenesis and Intervention , China Pharmaceutical University , No.24 Tongjia xiang , Nanjing 210009 , PR China
| | - Shuanghui Luo
- School of Life Science and Technology and Jiangsu Key Laboratory of Carcinogenesis and Intervention , China Pharmaceutical University , No.24 Tongjia xiang , Nanjing 210009 , PR China
| | - Linlin Wang
- School of Life Science and Technology and Jiangsu Key Laboratory of Carcinogenesis and Intervention , China Pharmaceutical University , No.24 Tongjia xiang , Nanjing 210009 , PR China
| | - Tao Xi
- School of Life Science and Technology and Jiangsu Key Laboratory of Carcinogenesis and Intervention , China Pharmaceutical University , No.24 Tongjia xiang , Nanjing 210009 , PR China
| | - Yingying Xing
- School of Life Science and Technology and Jiangsu Key Laboratory of Carcinogenesis and Intervention , China Pharmaceutical University , No.24 Tongjia xiang , Nanjing 210009 , PR China
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17
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Helicobacter pylori infection does not protect against eosinophilic esophagitis: results from a large multicenter case-control study. Am J Gastroenterol 2018; 113:972-979. [PMID: 29545632 DOI: 10.1038/s41395-018-0035-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 01/09/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Rising trends in eosinophilic esophagitis (EoE) have been repeatedly linked to declining Helicobacter pylori (H. pylori) infection, mostly in retrospective studies. We aimed to prospectively evaluate this inverse association. METHODS Prospective case-control study conducted in 23 centers. Children and adults naïve to eradication therapy for H. pylori were included. Cases were EoE patients, whereas controls were defined by esophageal symptoms and <5 eos/HPF on esophageal biopsies. H. pylori status was diagnosed by non-invasive (excluding serology) or invasive testing off proton pump inhibitor (PPI) therapy for 2 weeks. Atopy was defined by the presence of IgE-mediated conditions diagnosed by an allergist. RESULTS 808 individuals, including 404 cases and 404 controls (170 children) were enrolled. Overall H. pylori prevalence was 38% (45% children vs. 37% adults, p 0.009) and was not different between cases and controls (37% vs. 40%, p 0.3; odds ratio (OR) 0.97; 95% confidence interval (CI) 0.73-1.30), neither in children (42% vs. 46%, p 0.1) nor in adults (36% vs. 38%, p 0.4). Atopy (OR 0.85; 95%CI 0.75-0.98) and allergic rhinitis (OR 0.81; 95%CI 0.68-0.98) showed a borderline inverse association with H. pylori infection in EoE patients. This trend was not confirmed for asthma or food allergy. CONCLUSIONS H. pylori infection was not inversely associated with EoE, neither in children nor in adults. A borderline inverse association was confirmed for atopy and allergic rhinitis, but not asthma of food allergy. Our findings question a true protective role of H. pylori infection against allergic disorders, including EoE.
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18
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Pan X, Ke H, Niu X, Li S, Lv J, Pan L. Protection Against Helicobacter pylori Infection in BALB/c Mouse Model by Oral Administration of Multivalent Epitope-Based Vaccine of Cholera Toxin B Subunit-HUUC. Front Immunol 2018; 9:1003. [PMID: 29867978 PMCID: PMC5951970 DOI: 10.3389/fimmu.2018.01003] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 04/23/2018] [Indexed: 12/20/2022] Open
Abstract
Vaccination is an increasingly important alternative approach to control Helicobacter pylori infection, since H. pylori resistance to previously efficacious antibiotic regimens is increased, and H. pylori eradication treatment for upper gastrointestinal diseases is becoming less successful. Fortunately, an efficient oral monovalent H. pylori vaccine has been developed. However, compared with monovalent vaccines, multivalent vaccines have the potential to induce more effective and comprehensive protection against H. pylori infection. In this study, we designed and produced a multivalent epitope-based vaccine cholera toxin B subunit (CTB)-HUUC with the intramucosal adjuvant CTB and tandem copies of B-cell epitopes (HpaA132-141, UreA183-203, and UreB321-339) and T-cell epitopes (HpaA88-100, UreA27-53, UreB229-251, UreB317-329, UreB373-385, UreB438-452, UreB546-561, CagA149-164, and CagA196-217) from H. pylori adhesion A subunit (HpaA), urease A subunit (UreA), urease B subunit (UreB), and cytotoxin-associated antigen (CagA). Serum IgG, stomach, and intestine mucosal sIgA from mice after CTB-HUUC vaccination neutralized H. pylori urease activity in vitro. CTB-HUUC vaccination promoted H. pylori-specific lymphocyte responses and a mixed CD4+ T cell immune response as indicated by IFN-γ, interleukin-4, and interleukin-17 production in mice. Both oral prophylactic and therapeutic CTB-HUUC vaccinations reduced gastric urease activity and H. pylori infection and protected stomachs in mice. Taken together, CTB-HUUC is a promising potent and safe multivalent vaccine in controlling H. pylori infection in BALB/c mouse model.
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Affiliation(s)
- Xing Pan
- Institute of Infection and Immunity, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Hong Ke
- Department of Hemotology, People's Hospital, Hubei University of Medicine, Shiyan, China
| | - Xiaojuan Niu
- Department of Pharmacology, Hubei University of Medicine, Shiyan, China
| | - Shan Li
- Institute of Infection and Immunity, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Jun Lv
- Institute of Infection and Immunity, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Longrui Pan
- Department of Pharmacology, Hubei University of Medicine, Shiyan, China
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19
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Sutton P, Boag JM. Status of vaccine research and development for Helicobacter pylori. Vaccine 2018; 37:7295-7299. [PMID: 29627231 PMCID: PMC6892279 DOI: 10.1016/j.vaccine.2018.01.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 01/02/2018] [Indexed: 12/18/2022]
Abstract
Gastric adenocarcinoma is globally the third leading cause of death due to malignancy, with the bulk of this disease burden being suffered by low and middle income countries (LMIC), especially in Asia. The majority of these cancers develop as a result of a chronic gastritis that arises in response to infection with the stomach-dwelling bacterium, Helicobacter pylori. A vaccine against this pathogen would therefore be a powerful tool for preventing gastric adenocarcinoma. However, notwithstanding a proof-of-concept that vaccination can protect children from acquisition of H. pylori infection, there are currently no advanced vaccine candidates with only a single vaccine in Phase I clinical trial. Further, the development of a vaccine against H. pylori is not a current strategic priority of major pharmaceutical companies despite the large global disease burden. Given the involvement of such companies is likely to be critical for late stage development, there is therefore a need for an increased appreciation of the burden of this disease in LMIC and more investment to reinvigorate research in H. pylori vaccine Research and Development.
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Affiliation(s)
- Philip Sutton
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria 3052, Australia; Centre for Animal Biotechnology, Faculty of Veterinary and Agricultural Science, University of Melbourne, Parkville, Victoria 3010, Australia; Department of Paediatrics, University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Joanne M Boag
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria 3052, Australia
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20
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Cougnoux A, Movassaghi M, Picache JA, Iben JR, Navid F, Salman A, Martin K, Farhat NY, Cluzeau C, Tseng WC, Burkert K, Sojka C, Wassif CA, Cawley NX, Bonnet R, Porter FD. Gastrointestinal Tract Pathology in a BALB/c Niemann-Pick Disease Type C1 Null Mouse Model. Dig Dis Sci 2018; 63:870-880. [PMID: 29357083 PMCID: PMC6292218 DOI: 10.1007/s10620-018-4914-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 01/02/2018] [Indexed: 01/01/2023]
Abstract
BACKGROUND Niemann-Pick disease, type C (NPC) is a rare lysosomal storage disorder characterized by progressive neurodegeneration, splenomegaly, hepatomegaly, and early death. NPC is caused by mutations in either the NPC1 or NPC2 gene. Impaired NPC function leads to defective intracellular transport of unesterified cholesterol and its accumulation in late endosomes and lysosomes. A high frequency of Crohn disease has been reported in NPC1 patients, suggesting that gastrointestinal tract pathology may become a more prominent clinical issue if effective therapies are developed to slow the neurodegeneration. The Npc1 nih mouse model on a BALB/c background replicates the hepatic and neurological disease observed in NPC1 patients. Thus, we sought to characterize the gastrointestinal tract pathology in this model to determine whether it can serve as a model of Crohn disease in NPC1. METHODS We analyzed the gastrointestinal tract and isolated macrophages of BALB/cJ cNctr-Npc1m1N/J (Npc1-/-) mouse model to determine whether there was any Crohn-like pathology or inflammatory cell activation. We also evaluated temporal changes in the microbiota by 16S rRNA sequencing of fecal samples to determine whether there were changes consistent with Crohn disease. RESULTS Relative to controls, Npc1 mutant mice demonstrate increased inflammation and crypt abscesses in the gastrointestinal tract; however, the observed pathological changes are significantly less than those observed in other Crohn disease mouse models. Analysis of Npc1 mutant macrophages demonstrated an increased response to lipopolysaccharides and delayed bactericidal activity; both of which are pathological features of Crohn disease. Analysis of the bacterial microbiota does not mimic what is reported in Crohn disease in either human or mouse models. We did observe significant increases in cyanobacteria and epsilon-proteobacteria. The increase in epsilon-proteobacteria may be related to altered cholesterol homeostasis since cholesterol is known to promote growth of this bacterial subgroup. CONCLUSIONS Macrophage dysfunction in the BALB/c Npc1-/- mouse is similar to that observed in other Crohn disease models. However, neither the degree of pathology nor the microbiota changes are typical of Crohn disease. Thus, this mouse model is not a good model system for Crohn disease pathology reported in NPC1 patients.
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Affiliation(s)
- Antony Cougnoux
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - Miyad Movassaghi
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - Jaqueline A Picache
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - James R Iben
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - Fatemeh Navid
- Department of Health and Human Services, National Institutes of Health, National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, MD, 20892, USA
| | - Alexander Salman
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - Kyle Martin
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - Nicole Y Farhat
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - Celine Cluzeau
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - Wei-Chia Tseng
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - Kathryn Burkert
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - Caitlin Sojka
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - Christopher A Wassif
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - Niamh X Cawley
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA
| | - Richard Bonnet
- Microbes, Inflammation, Intestin et Susceptibilité de l'Hôte (M2iSH), Inserm U1071, INRA USC2018, Clermont Université, Université d'Auvergne, Clermont-Ferrand, France
- Laboratoire de Bactériologie, Center Hospitalier Universitaire, Clermont-Ferrand, France
| | - Forbes D Porter
- Department of Health and Human Services, National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, 20892, USA.
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21
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Affiliation(s)
- Juanita L. Merchant
- Correspondence Address correspondence to: Juanita L. Merchant, MD, PhD, 109 Zina Pitcher Place, BSRB 2051, Ann Arbor, Michigan 48109-2200.
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Kenny LC, Kell DB. Immunological Tolerance, Pregnancy, and Preeclampsia: The Roles of Semen Microbes and the Father. Front Med (Lausanne) 2018; 4:239. [PMID: 29354635 PMCID: PMC5758600 DOI: 10.3389/fmed.2017.00239] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 12/12/2017] [Indexed: 12/18/2022] Open
Abstract
Although it is widely considered, in many cases, to involve two separable stages (poor placentation followed by oxidative stress/inflammation), the precise originating causes of preeclampsia (PE) remain elusive. We have previously brought together some of the considerable evidence that a (dormant) microbial component is commonly a significant part of its etiology. However, apart from recognizing, consistent with this view, that the many inflammatory markers of PE are also increased in infection, we had little to say about immunity, whether innate or adaptive. In addition, we focused on the gut, oral and female urinary tract microbiomes as the main sources of the infection. We here marshall further evidence for an infectious component in PE, focusing on the immunological tolerance characteristic of pregnancy, and the well-established fact that increased exposure to the father's semen assists this immunological tolerance. As well as these benefits, however, semen is not sterile, microbial tolerance mechanisms may exist, and we also review the evidence that semen may be responsible for inoculating the developing conceptus (and maybe the placenta) with microbes, not all of which are benign. It is suggested that when they are not, this may be a significant cause of PE. A variety of epidemiological and other evidence is entirely consistent with this, not least correlations between semen infection, infertility and PE. Our view also leads to a series of other, testable predictions. Overall, we argue for a significant paternal role in the development of PE through microbial infection of the mother via insemination.
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Affiliation(s)
- Louise C. Kenny
- The Irish Centre for Fetal and Neonatal Translational Research (INFANT), University College Cork, Cork, Ireland
- Department of Obstetrics and Gynecology, University College Cork, Cork, Ireland
- Faculty of Health and Life Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Douglas B. Kell
- School of Chemistry, The University of Manchester, Manchester, United Kingdom
- The Manchester Institute of Biotechnology, The University of Manchester, Manchester, United Kingdom
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23
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Rugge M, Genta RM, Di Mario F, El-Omar EM, El-Serag HB, Fassan M, Hunt RH, Kuipers EJ, Malfertheiner P, Sugano K, Graham DY. Gastric Cancer as Preventable Disease. Clin Gastroenterol Hepatol 2017; 15:1833-1843. [PMID: 28532700 DOI: 10.1016/j.cgh.2017.05.023] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 04/26/2017] [Accepted: 05/16/2017] [Indexed: 02/07/2023]
Abstract
Gastric cancer, 1 of the 5 most common causes of cancer death, is associated with a 5-year overall survival rate less than 30%. A minority of cancers occurs as part of syndromic diseases; more than 90% of adenocarcinomas are considered as the ultimate consequence of a longstanding mucosal inflammation. Helicobacter pylori infection is the leading etiology of non-self-limiting gastritis, which may result in atrophy of the gastric mucosa and impaired acid secretion. Gastric atrophy establishes a field of cancerization prone to further molecular and phenotypic changes, possibly resulting in cancer growth. This well-understood natural history provides the clinicopathologic rationale for primary and secondary cancer prevention strategies. A large body of evidence demonstrates that combined primary (H pylori eradication) and secondary (mainly endoscopy) prevention efforts may prevent or limit the progression of gastric oncogenesis. This approach, which is tailored to different country-specific gastric cancer incidence, socioeconomic, and cultural factors, requires that the complementary competences of gastroenterologists, oncologists, and pathologists be amalgamated into a common strategy of health policy.
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Affiliation(s)
- Massimo Rugge
- Department of Medicine (DIMED), University of Padua, Padua, Italy; Veneto Tumor Registry, Veneto Region, Padua, Italy.
| | - Robert M Genta
- Miraca Life Sciences Research Institute, Irving, and Departments of Pathology and Medicine, Baylor College of Medicine, Houston, Texas
| | - Francesco Di Mario
- Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
| | - Emad M El-Omar
- St George and Sutherland Clinical School, University of New South Wales, Sydney, Australia
| | - Hashem B El-Serag
- Department of Medicine, Michael E. DeBakey VA Medical Center, Baylor College of Medicine, Houston, Texas
| | - Matteo Fassan
- Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Richard H Hunt
- Division of Gastroenterology, Department of Medicine and Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Canada
| | - Ernst J Kuipers
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | | | - Kentaro Sugano
- Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - David Y Graham
- Department of Medicine, Michael E. DeBakey VA Medical Center, Baylor College of Medicine, Houston, Texas
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24
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Della Bella C, Benagiano M, De Gennaro M, Gomez-Morales MA, Ludovisi A, D'Elios S, Luchi S, Pozio E, D'Elios MM, Bruschi F. T-cell clones in human trichinellosis: Evidence for a mixed Th1/Th2 response. Parasite Immunol 2017; 39. [PMID: 28106258 DOI: 10.1111/pim.12412] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 01/15/2017] [Indexed: 01/19/2023]
Abstract
In humans, studies on the cellular immune response against Trichinella are scarce. Aim of this study was to characterize the cytokine profile of T cells specific for Trichinella britovi in trichinellosis patients. Peripheral blood mononuclear cells (PBMC) were obtained from five patients involved in a trichinellosis outbreak caused by T. britovi, which occurred in 2013 in Tuscany (Italy). All the patients resulted positive for Trichinella-specific IgG, IgE and presented eosinophilia. T cells were investigated for their proliferation to excretory/secretory antigens from Trichinella spiralis muscle larvae (TsES) and for their cytokine profile. A total of 284 CD4+ and 42 CD8+ T-cell clones were obtained from the TsES-specific T-cell lines from PBMC. All T-cell clones proliferated in response to mitogen. Of the 284 CD4+ T-cell clones generated from TsES-specific T-cell lines, 135 (47%) proliferated significantly to TsES; 26% CD8+ T-cell clones showed proliferation to TsES. In the series of the 135 TsES-specific CD4+ clones, 51% expressed a Th2 profile, 30% a Th0 and 19% Th1. In the series of the 11 TsES-specific CD8+ T-cell clones, 18% were Tc2, 45% Tc0 and 36% Tc1. In human trichinellosis, the cellular immune response is, during the chronic phase, mixed Th1/Th2.
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Affiliation(s)
- C Della Bella
- Department of Experimental and Clinical Medicine, Università degli Studi di Firenze, Florence, Italy
| | - M Benagiano
- Department of Experimental and Clinical Medicine, Università degli Studi di Firenze, Florence, Italy
| | | | - M A Gomez-Morales
- Department of Infectious, Parasitic and Immune Mediated Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - A Ludovisi
- Department of Infectious, Parasitic and Immune Mediated Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - S D'Elios
- Department of Experimental and Clinical Medicine, Università degli Studi di Firenze, Florence, Italy
| | - S Luchi
- Ospedale di Lucca, Lucca, Italy
| | - E Pozio
- Department of Infectious, Parasitic and Immune Mediated Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - M M D'Elios
- Department of Experimental and Clinical Medicine, Università degli Studi di Firenze, Florence, Italy
| | - F Bruschi
- Department of Translational Research, N.T.M.S., Università di Pisa, Pisa, Italy.,National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, USA
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25
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Lee SP, Lee SY, Kim JH, Sung IK, Park HS, Shim CS. Factors Related to Upper Gastrointestinal Symptom Generation in 2275 Helicobacter pylori Seroprevalent Adults. Dig Dis Sci 2017; 62:1561-1570. [PMID: 28281170 DOI: 10.1007/s10620-017-4529-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 03/01/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIM Upper gastrointestinal (UGI) symptoms are common; however, the role of Helicobacter pylori and gastric corpus atrophy in the generation of these symptoms is controversial. The aim of this study was to determine the risk factors for UGI symptoms in adults in an endemic area of H. pylori infection. METHODS Korean adults who completed questionnaires on the day of serum anti-H. pylori IgG and pepsinogen (PG) assays before UGI endoscopy were included. Gastric corpus atrophy was based on the criteria of a serum PG I/II ratio <3.0 and a PG I <70 ng/ml. RESULTS Of the 2275 included subjects, 723 (31.8%) had at least one UGI symptom. A total of 374 (16.4%) subjects had multiple symptoms without significant correlations between the symptoms (λ < 0.2). The H. pylori serology assay was positive in 1382 (60.7%) subjects, and gastric corpus atrophy was present in 291 (12.8%). Neither H. pylori seropositivity (p = 0.077) nor gastric corpus atrophy (p = 0.138) was related to the presence of UGI symptoms. Female gender and smoking were independent risk factors for heartburn and upper abdominal pain (all p < 0.001). Furthermore, female gender was the only independent risk factor for multiple UGI symptoms (p < 0.001), globus sensation (p < 0.001), early satiety (p < 0.001), epigastric soreness (p = 0.001), and chest discomfort (p = 0.003). CONCLUSIONS In an H. pylori seroprevalent population, female gender is the most common risk factor followed by smoking for UGI symptom generation. Neither H. pylori seropositivity nor gastric corpus atrophy is an independent risk factor for UGI symptom generation.
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Affiliation(s)
- Sang Pyo Lee
- Department of Internal Medicine, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, Korea
| | - Sun-Young Lee
- Department of Internal Medicine, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, Korea.
| | - Jeong Hwan Kim
- Department of Internal Medicine, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, Korea
| | - In-Kyung Sung
- Department of Internal Medicine, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, Korea
| | - Hyung Seok Park
- Department of Internal Medicine, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, Korea
| | - Chan Sup Shim
- Department of Internal Medicine, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, Korea
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26
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Eda H, Fukui H, Uchiyama R, Kitayama Y, Hara K, Yang M, Kodani M, Tomita T, Oshima T, Watari J, Tsutsui H, Miwa H. Effect of Helicobacter pylori infection on the link between GLP-1 expression and motility of the gastrointestinal tract. PLoS One 2017; 12:e0177232. [PMID: 28545056 PMCID: PMC5436696 DOI: 10.1371/journal.pone.0177232] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Accepted: 04/24/2017] [Indexed: 12/12/2022] Open
Abstract
Background Although Helicobacter pylori (H. pylori) infection is closely associated with the development of peptic ulcer, its involvement in pathophysiology in the lower intestinal tract and gastrointestinal (GI) motility remains unclear. Glucagon-like peptide-1 (GLP-1) is a gut hormone produced in the lower intestinal tract and involved in GI motility. Here, we investigated the effect of H. pylori infection on the link between GLP-1 expression and motility of the GI tract. Methods C57BL/6 mice were inoculated with a H. pylori strain. Twelve weeks later, the H. pylori-infected mice underwent H. pylori eradication treatment. GI tissues were obtained from the mice at various time intervals, and evaluated for the severity of gastric inflammatory cell infiltration and immunohistochemical expression of GLP-1 and PAX6 in the colonic mucosa. Gastrointestinal transit time (GITT) was measured by administration of carmine-red solution. Results GLP-1 was expressed in the endocrine cells of the colonic mucosa, and PAX6 immunoreactivity was co-localized in such cells. The numbers of GLP-1- and PAX6-positive cells in the colon were significantly increased at 12 weeks after H. pylori infection and showed a positive correlation with each other. The GITT was significantly longer in H. pylori-infected mice than in non-infected controls and showed a positive correlation with GLP-1 expression. When H. pylori-infected mice underwent H. pylori eradication, GITT and PAX6/GLP-1 expression did not differ significantly from those in untreated H. pylori-infected mice. Conclusions H. pylori infection may impair GI motility by enhancing the colonic GLP-1/PAX6 expression.
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Affiliation(s)
- Hirotsugu Eda
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hirokazu Fukui
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
- * E-mail:
| | - Ryosuke Uchiyama
- Department of Microbiology, Hyogo College of Medicine, Nishinomiya, Japan
| | - Yoshitaka Kitayama
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Ken Hara
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Mo Yang
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
- Department of Digestive Diseases, Tianjin Medical University General Hospital, Tianjin, China
| | - Mio Kodani
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Toshihiko Tomita
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Tadayuki Oshima
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Jiro Watari
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hiroko Tsutsui
- Department of Microbiology, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hiroto Miwa
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
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27
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Oghalaie A, Saberi S, Esmaeili M, Ebrahimzadeh F, Barkhordari F, Ghamarian A, Tashakoripoor M, Abdirad A, Eshagh Hosseini M, Khalaj V, Mohammadi M. Helicobacter pylori Peptidyl Prolyl Isomerase Expression Is Associated with the Severity of Gastritis. J Gastrointest Cancer 2017; 47:375-380. [PMID: 27370181 DOI: 10.1007/s12029-016-9849-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PURPOSE Helicobacter pylori secretory peptidyl prolyl isomerase, HP0175, is progressively identified as a pro-inflammatory and pro-carcinogenic protein, which serves to link H. pylori infection to its more severe clinical outcomes. Here, we have analyzed host HP0175-specific antibody responses in relation to the severity of gastritis. METHODS The HP0175 gene fragment was PCR-amplified, cloned, expressed and purified by Ni-NTA affinity chromatography. Serum antigen-specific antibody responses of non-ulcer dyspeptic patients (N = 176) against recombinant HP0175 were detected by western blotting. The infection status of these subjects was determined by rapid urease test, culture, histology, and serology. The grade of inflammation and stage of atrophy were scored blindly according to the OLGA staging system. RESULTS The recombinant HP0175 (rHP0175) was expressed as a ~35 kDa protein and its identity was confirmed by western blotting using anti-6X His tag antibody and pooled H. pylori-positive sera. Serum IgG antibodies against rHP0175 segregated our patients into two similar-sized groups of sero-positives (90/176, 51.1 %) and sero-negatives (86/176, 48.9 %). The former presented with higher grades of gastric inflammation (OR = 4.4, 95 % CI = 1.9-9.9, P = 0.001) and stages of gastric atrophy (OR = 18.3, 95 %CI = 1.4-246.6, P = 0.028). CONCLUSION Our findings lend further support to the pro-inflammatory nature of H. pylori peptidyl prolyl isomerase (HP0175) and recommends this antigen as a non-invasive serum biomarker of the severity of H. pylori-associated gastritis.
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Affiliation(s)
- Akbar Oghalaie
- HPGC Group, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 1316943551, Iran
| | - Samaneh Saberi
- HPGC Group, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 1316943551, Iran
| | - Maryam Esmaeili
- HPGC Group, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 1316943551, Iran
| | - Fatemeh Ebrahimzadeh
- HPGC Group, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 1316943551, Iran
| | - Farzaneh Barkhordari
- Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 1316943551, Iran
| | - Abdolreza Ghamarian
- Fungal Biotechnology Lab, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 1316943551, Iran
| | - Mohammad Tashakoripoor
- Department of Gastroenterology, Amiralam Hospital, Tehran University of Medical Sciences, Tehran, 1145765111, Iran
| | - Afshin Abdirad
- Cancer Institute, Tehran University of Medical Sciences, Tehran, 141979733141, Iran
| | - Mahmoud Eshagh Hosseini
- Department of Gastroenterology, Amiralam Hospital, Tehran University of Medical Sciences, Tehran, 1145765111, Iran
| | - Vahid Khalaj
- Fungal Biotechnology Lab, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 1316943551, Iran
| | - Marjan Mohammadi
- HPGC Group, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 1316943551, Iran.
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28
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Yeo SH, Yang CH. [Peptic Ulcer Disease Associated with Helicobacter pylori Infection]. THE KOREAN JOURNAL OF GASTROENTEROLOGY 2017; 67:289-99. [PMID: 27312829 DOI: 10.4166/kjg.2016.67.6.289] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Although the global prevalence of peptic ulcer disease (PUD) is decreasing, PUD is still one of the most common upper gastrointestinal diseases in the world due to Helicobacter pylori infection and increased use of non-steroidal anti-inflammatory drugs. In Korea, the prevalence of H. pylori infection is also declining, but it is still the major cause of PUD. The outcomes of H. pylori infection are caused by imbalances between bacterial virulence factors, host factors, and environmental influences. In this review, we describe the prevalence trends of H. pylori infection in Korea, the mechanism of H. pylori infection-related PUD, and treatment strategies.
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Affiliation(s)
- Se-Hwan Yeo
- Division of Gastroenterology & Hepatology, Department of Internal Medicine, Dongguk University School of Medicine, Gyeongju, Korea
| | - Chang-Hun Yang
- Division of Gastroenterology & Hepatology, Department of Internal Medicine, Dongguk University School of Medicine, Gyeongju, Korea
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29
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Impact of Helicobacter pylori Immunoglobulin G Levels and Atrophic Gastritis Status on Risk of Metabolic Syndrome. PLoS One 2016; 11:e0166588. [PMID: 27851820 PMCID: PMC5113018 DOI: 10.1371/journal.pone.0166588] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 10/31/2016] [Indexed: 12/16/2022] Open
Abstract
Background Helicobacter pylori (HP) infection is implicated in gastric and extra-gastric diseases. While gastritis-related chronic inflammation represents a known trigger of metabolic disturbances, whether metabolic syndrome (MetS) is affected by gastritis status remains unclear. We aimed to clarify the effect of HP-related gastritis on the risk of MetS. Materials and Methods We retrospectively enrolled patients undergoing screening for MetS between 2014 and 2015. Investigations included HP-specific immunoglobulin G (IgG) antibody assays to detect HP infection, and serum pepsinogen assays to evaluate atrophic gastritis status. The risk of MetS was evaluated via multiple logistic regression analyses with two covariates: serum HP infection status (IgG levels) and atrophic gastritis status (two criteria were applied; pepsinogen I/II ratio < 3 or both pepsinogen I levels ≤ 70 μg/L and pepsinogen I/II ratio < 3). Results Of 1,044 participants, 247 (23.7%) were HP seropositive, and 62 (6.0%) had MetS. HP seronegative and seropositive patients had similar risks of MetS. On the other hand, AG (defined in terms of serum PG I/II <3) was significant risk of MetS (OR of 2.52 [95% CI 1.05–7.52]). After stratification according to HP IgG concentration, patients with low HP infection status had the lowest MetS risk (defined as an odds ratio [OR] adjusted for age, sex, smoking, drinking and physical activity status). Taking this result as a reference, patients with negative, moderate, and high HP infection status had ORs (with 95% confidence intervals [CI]) of 2.15 (1.06–4.16), 3.69 (1.12–16.7), and 4.05 (1.05–26.8). Conclusions HP-associated gastritis represents a risk factor for MetS. Research should determine why low and not negative HP infection status is associated with the lowest MetS risk.
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Stenström B, Windsor HM, Fulurija A, Benghezal M, Kumarasinghe MP, Kimura K, Tay CY, Viiala CH, Ee HC, Lu W, Schoep TD, Webberley KM, Marshall BJ. Helicobacter pylori overcomes natural immunity in repeated infections. Clin Case Rep 2016; 4:1026-1033. [PMID: 27830066 PMCID: PMC5093156 DOI: 10.1002/ccr3.687] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 05/30/2016] [Accepted: 08/05/2016] [Indexed: 12/20/2022] Open
Abstract
Repeated experimental reinfection of two subjects indicates that Helicobacter pylori infection does not promote an immune response protective against future reinfection. Our results highlight the importance of preventing reinfection after eradication, through public health initiatives, and possibly treatment of family members. They indicate difficulties for vaccine development, especially therapeutic vaccines.
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Affiliation(s)
- Björn Stenström
- Department of Gastroenterology Sir Charles Gairdner Hospital Perth Western Australia Australia
| | - Helen M Windsor
- The Marshall Centre for Infectious Diseases Research and Training School of Pathology and Laboratory Medicine The University of Western Australia Perth Western Australia Australia
| | - Alma Fulurija
- The Marshall Centre for Infectious Diseases Research and Training School of Pathology and Laboratory Medicine The University of Western Australia Perth Western Australia Australia; Ondek Pty Ltd QEII Medical Centre Perth Western Australia Australia
| | - Mohammed Benghezal
- The Marshall Centre for Infectious Diseases Research and Training School of Pathology and Laboratory Medicine The University of Western Australia Perth Western Australia Australia; Ondek Pty Ltd QEII Medical Centre Perth Western Australia Australia; Swiss Vitamin Institute Épalinges Switzerland
| | - M Priyanthi Kumarasinghe
- Department of Anatomical Pathology PathWest, QEII Medical Centre Perth Western Australia Australia
| | - Kazufumi Kimura
- Department of Gastroenterology Sir Charles Gairdner Hospital Perth Western Australia Australia; The Marshall Centre for Infectious Diseases Research and Training School of Pathology and Laboratory Medicine The University of Western Australia Perth Western Australia Australia; Venasis Kanamachi Medical Clinic Tokyo-to Japan
| | - Chin Yen Tay
- The Marshall Centre for Infectious Diseases Research and Training School of Pathology and Laboratory Medicine The University of Western Australia Perth Western Australia Australia
| | - Charlie H Viiala
- Department of Gastroenterology Sir Charles Gairdner Hospital Perth Western Australia Australia
| | - Hooi C Ee
- Department of Gastroenterology Sir Charles Gairdner Hospital Perth Western Australia Australia
| | - Wei Lu
- The Marshall Centre for Infectious Diseases Research and Training School of Pathology and Laboratory Medicine The University of Western Australia Perth Western Australia Australia; Ondek Pty Ltd QEII Medical Centre Perth Western Australia Australia
| | - Tobias D Schoep
- Ondek Pty Ltd QEII Medical Centre Perth Western Australia Australia; Telethon Kids Institute Perth Western Australia Australia
| | - K Mary Webberley
- The Marshall Centre for Infectious Diseases Research and Training School of Pathology and Laboratory Medicine The University of Western Australia Perth Western Australia Australia
| | - Barry J Marshall
- The Marshall Centre for Infectious Diseases Research and Training School of Pathology and Laboratory Medicine The University of Western Australia Perth Western Australia Australia; UM Marshall Centre University of Malaya Kuala Lumpur Malaysia
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31
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Bagheri N, Azadegan-Dehkordi F, Rafieian-Kopaei M, Rahimian G, Asadi-Samani M, Shirzad H. Clinical relevance of Helicobacter pylori virulence factors in Iranian patients with gastrointestinal diseases. Microb Pathog 2016; 100:154-162. [PMID: 27666510 DOI: 10.1016/j.micpath.2016.09.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 09/21/2016] [Accepted: 09/21/2016] [Indexed: 12/21/2022]
Abstract
Helicobacter pylori (H. pylori) usually colonizes the gastric mucosa of more than 50% of the human population, causing an infection that may appear in early childhood and can persist for life. H. pylori is suggested as the main cause of peptic ulcer and chronic gastritis. It is also associated with gastric cancer. Its severity and symptoms depend on environmental factors, host susceptibility and bacterial components, which allow H. pylori to switch between commensalism and pathogenicity. H. pylori is genetically highly variable, and the variability which affects H. pylori virulence factors might be useful in identifying the strains with different degrees of pathogenicity. The geographic distribution of distinct H. pylori genotypes is largely unknown and should be established. The prevalence of more pathogenic genotypes in certain areas may have important epidemiological consequences. It also might be associated with the severity of H. pylori related diseases in such regions. Given that Iran is located in the Middle East and Asian populations have revealed high levels of gastric cancer, it is of clinical interest to clarify the potential of H. pylori virulence markers in predicting the associated clinical outcomes. In this review, clinical relevance of adhesion molecules and significant virulence factors of H. pylori in Iranian patients with gastrointestinal diseases are discussed in comparison to other countries.
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Affiliation(s)
- Nader Bagheri
- Cellular and Molecular Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran; Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | | | - Ghorbanali Rahimian
- Department of Internal Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Majid Asadi-Samani
- Medical Plants Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Hedaytollah Shirzad
- Cellular and Molecular Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran.
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32
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Talebi Bezmin Abadi A, Lee YY. Chinese Helicobacter pylori vaccine: Solution for an old challenge? World J Gastrointest Pharmacol Ther 2016; 7:412-415. [PMID: 27602242 PMCID: PMC4986397 DOI: 10.4292/wjgpt.v7.i3.412] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 04/09/2016] [Accepted: 05/27/2016] [Indexed: 02/07/2023] Open
Abstract
Helicobacter pylori (H. pylori) is an important cause for gastric cancer in high risk individuals. H. pylori colonizes more than 50% of the world’s population and associated peptic ulcer disease and gastric malignancy have important public health implications. It has been classified as a class I carcinogen in 1994 by the World Health Organization. Clinicians are often prompted to eliminate the infection the moment it is detected. This also, unfortunately, led to reckless use of antibiotics and reports of increasing resistance are now worldwide. Each year, many of people die from gastric cancer; thus application of effective vaccine can reduce this relatively high mortality worldwide. H. pylori can be eliminated by antibiotics but efficacy is sharply decreasing. Moreover, current therapy is also expensive and with side effects. Vaccine may be the best solution to the above problem but there are many challenges in producing such an effective therapeutic vaccine. Recently, the Chinese group published in Lancet, a single-center, randomized, phase III study of an oral recombinant vaccine (Urease B subunit fused with heat-labile enterotoxin B derived from Escherichia coli) prescribed in the Chinese children (6-15 years) without a history of H. pylori infection. This review provides an insight into this new solution for an old challenge.
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Role of Regulatory T-cells in Different Clinical Expressions of Helicobacter pylori Infection. Arch Med Res 2016; 47:245-54. [DOI: 10.1016/j.arcmed.2016.07.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 07/22/2016] [Indexed: 12/15/2022]
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Stasiłojć M, Hinc K, Peszyńska-Sularz G, Obuchowski M, Iwanicki A. Recombinant Bacillus subtilis Spores Elicit Th1/Th17-Polarized Immune Response in a Murine Model of Helicobacter pylori Vaccination. Mol Biotechnol 2016; 57:685-91. [PMID: 25779639 PMCID: PMC4503858 DOI: 10.1007/s12033-015-9859-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Current progress in research on vaccines against Helicobacter pylori emphasizes the significance of eliciting the Th1/Th17-polarized immune response. Such polarization can be achieved by selection of appropriate antigen and adjuvant. In this study, we wanted to check the polarization of the immune response elicited by UreB protein of Helicobacter acinonychis delivered by recombinant Bacillus subtilis spores upon oral immunization. B. subtilis spores presenting fragment of UreB protein and able to express entire UreB in vegetative cells after germination were orally administered to mice along with aluminum hydroxide or recombinant spores presenting IL-2 as an adjuvant. The pattern of cytokines secreted by sensitized splenocytes assessed by the cytometric bead array clearly indicated polarization of the immune response toward both Th1 and Th17 in mice immunized with the use of above-mentioned adjuvants. Obtained result is promising regarding the usage of recombinant spores in formulations of vaccines against H. pylori and line up with the current state of research emphasizing the key role of appropriate adjuvants.
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Affiliation(s)
- Małgorzata Stasiłojć
- Department of Medical Biotechnology, Intercollegiate Faculty of Biotechnology UG-MUG, University of Gdańsk, Dębinki 1, 80-211, Gdańsk, Poland
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Gong Y, Tao L, Jing L, Liu D, Hu S, Liu W, Zhou N, Xie Y. Association of TLR4 and Treg in Helicobacter pylori Colonization and Inflammation in Mice. PLoS One 2016; 11:e0149629. [PMID: 26901645 PMCID: PMC4762684 DOI: 10.1371/journal.pone.0149629] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 02/03/2016] [Indexed: 12/14/2022] Open
Abstract
The host immune response plays an important role in the pathogenesis of Helicobacter pylori infection. The aim of this study was to clarify the immune pathogenic mechanism of Helicobacter pylori infection via TLR signaling and gastric mucosal Treg cells in mice. To discover the underlying mechanism, we selectively blocked the TLR signaling pathway and subpopulations of regulatory T cells in the gastric mucosa of mice, and examined the consequences on H. pylori infection and inflammatory response as measured by MyD88, NF-κB p65, and Foxp3 protein expression levels and the levels of Th1, Th17 and Th2 cytokines in the gastric mucosa. We determined that blocking TLR4 signaling in H. pylori infected mice decreased the numbers of Th1 and Th17 Treg cells compared to controls (P < 0.001-0.05), depressed the immune response as measured by inflammatory grade (P < 0.05), and enhanced H. pylori colonization (P < 0.05). In contrast, blocking CD25 had the opposite effects, wherein the Th1 and Th17 cell numbers were increased (P < 0.001-0.05), immune response was enhanced (P < 0.05), and H. pylori colonization was inhibited (P < 0.05) compared to the non-blocked group. In both blocked groups, the Th2 cytokine IL-4 remained unchanged, although IL-10 in the CD25 blocked group was significantly decreased (P < 0.05). Furthermore, MyD88, NF-κB p65, and Foxp3 in the non-blocked group were significantly lower than those in the TLR4 blocked group (P < 0.05), but significantly higher than those of the CD25 blocked group (P < 0.05). Together, these results suggest that there might be an interaction between TLR signaling and Treg cells that is important for limiting H. pylori colonization and suppressing the inflammatory response of infected mice.
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Affiliation(s)
- Yanfeng Gong
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, No. 17, Yongwai Zheng Street, Nanchang, Jiangxi, China
- Department of Geriatrics, The First Affiliated Hospital of Nanchang University, No. 17, Yongwai Zheng Street, Nanchang, Jiangxi, China
| | - Liming Tao
- Department of Obstetrics, The First Affiliated Hospital of Nanchang University, No. 17, Yongwai Zheng Street, Nanchang, Jiangxi, China
| | - Lei Jing
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, No. 17, Yongwai Zheng Street, Nanchang, Jiangxi, China
| | - Dongsheng Liu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, No. 17, Yongwai Zheng Street, Nanchang, Jiangxi, China
| | - Sijun Hu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, No. 17, Yongwai Zheng Street, Nanchang, Jiangxi, China
| | - Wei Liu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, No. 17, Yongwai Zheng Street, Nanchang, Jiangxi, China
| | - Nanjin Zhou
- Department of Biochemistry and Molecular Biology, Jiangxi Academy of Medical Science, Jiangxi, China
- * E-mail: (YX); (NZ)
| | - Yong Xie
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, No. 17, Yongwai Zheng Street, Nanchang, Jiangxi, China
- * E-mail: (YX); (NZ)
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Sun X, Xu Y, Wang L, Zhang F, Zhang J, Fu X, Jing T, Han J. Association between TNFA Gene Polymorphisms and Helicobacter pylori Infection: A Meta-Analysis. PLoS One 2016; 11:e0147410. [PMID: 26815578 PMCID: PMC4729674 DOI: 10.1371/journal.pone.0147410] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 01/04/2016] [Indexed: 12/18/2022] Open
Abstract
Background Several host genetic factors are thought to affect susceptibility to Helicobacter pylori infection-related diseases, including tumor necrosis factor (TNF)-α. Previous studies have evaluated the association between TNFA gene polymorphisms and H. pylori infection, but the results were inconclusive. We conducted this meta-analysis to clarify the association between TNFA polymorphisms and H. pylori infection. Methods Published literature within PubMed, Embase, and the Cochrane Library were used in our meta-analysis. Data were analyzed with the Stata13.1 software package using pooled odds ratios (ORs) with 95% confidence intervals (CI). Results A total of 24 studies were included in our study. The TNFA -308G>A polymorphism was associated with decreasing H. pylori infection (AA vs. AG+GG, OR = 0.64, 95% CI = 0.43–0.97; AA vs. GG, OR = 0.64, 95% CI = 0.43–0.97). A significantly decreased risk was also found for -1031T>C polymorphism (CC vs. CT+TT, OR = 0.61, 95% CI = 0.44–0.84). -863C>A polymorphism was associated with increasing risk of H. pylori infection (AA+AC vs. CC, OR = 1.47, 95% CI = 1.16–1.86; A allele vs. C allele, OR = 1.40, 95% CI = 1.14–1.72). There was no significant association between -857C>T polymorphism and H. pylori infection. When stratified analysis was conducted on H. pylori infection detection methods, -857C>T and -863C>A polymorphisms were associated with H. pylori infection for the non-ELISA subgroup. When stratified for ethnicity or study design, -863C>A significantly increased the risk and -1031T>C decreased the risk for the Asian subgroup and hospital-based subgroup. Conclusion Results of our meta-analysis demonstrate that TNFA -308G>A and -1031 T>C polymorphisms may be protective factors against H. pylori infection, and -863C>A may be a risk factor, especially in Asian populations. Further studies with larger sample sizes are required to validate these results.
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Affiliation(s)
- Xudong Sun
- Department of Pathogenic Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Yuanyuan Xu
- Department of Pathogenic Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Li Wang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Fuhua Zhang
- Department of Gastroenterology, Second Hospital of Gansu Province, Lanzhou, China
| | - Jinhua Zhang
- Department of Gastroenterology, Second Hospital of Gansu Province, Lanzhou, China
| | - Ximei Fu
- Department of Pathogenic Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Tao Jing
- Department of Pathogenic Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Jian Han
- Department of Pathogenic Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- * E-mail:
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Muhammad JS, Zaidi SF, Zhou Y, Sakurai H, Sugiyama T. Novel epidermal growth factor receptor pathway mediates release of human β-defensin 3 fromHelicobacter pylori-infected gastric epithelial cells. Pathog Dis 2016; 74:ftv128. [DOI: 10.1093/femspd/ftv128] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/26/2015] [Indexed: 12/11/2022] Open
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Homan M, Orel R. Are probiotics useful in Helicobacter pylori eradication? World J Gastroenterol 2015; 21:10644-10653. [PMID: 26457024 PMCID: PMC4588086 DOI: 10.3748/wjg.v21.i37.10644] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Revised: 04/25/2015] [Accepted: 09/02/2015] [Indexed: 02/07/2023] Open
Abstract
Helicobacter pylori (H. pylori) is considered an etiologic factor for the development of peptic ulcer disease, gastric adenocarcinoma, and MALT lymphoma. Therapeutic schemes to eradicate the bacteria are based on double antibiotic therapy and proton pump inhibitor. Despite many therapeutic improvements in H. pylori eradication treatment, it is still associated with high infection rate also in developed countries. Bacterial resistance and adverse events occurrence are among most frequent causes for anti- H. pylori treatment failure. Several studies have reported that certain probiotic strains can exhibit inhibitory activity against H. pylori bacteria. In addition, some probiotic strains can reduce the occurrence of side effects due to antibiotic therapy and consequently increase the H. pylori eradication rate. The results of the prospective double-blind placebo-controlled studies suggest that specific probiotics, such as S. boulardii and L. johnsonni La1 probably can diminish the bacterial load, but not completely eradicate the H. pylori bacteria. Furthermore, it seems that supplementation with S. boulardii is a useful concomitant therapy in the standard H. pylori eradication treatment protocol and most probably increases eradication rate. L. reuteri is equally effective, but more positive studies are needed. Finally, probiotic strains, such as S. boulardii, L. reuteri and L. GG, decrease gastrointestinal antibiotic associated adverse effects.
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Sun X, Xu Y, Zhang F, Jing T, Han J, Zhang J. Association between the IL1B -31C > T polymorphism and Helicobacter pylori infection in Asian and Latin American population: A meta-analysis. Microb Pathog 2015; 86:45-52. [PMID: 26188264 DOI: 10.1016/j.micpath.2015.07.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 07/11/2015] [Accepted: 07/13/2015] [Indexed: 12/18/2022]
Abstract
BACKGROUND Host genetic factors that control the production of cytokines, including interleukin-1β (IL-1β), possibly affect susceptibility to many Helicobacter pylori-related diseases. There is a complex interplay between H. pylori infection, the subsequent production of certain cytokines, and H. pylori-related diseases. We conducted a meta-analysis to clarify the association between the IL1B -31C > T polymorphism and H. pylori infection, and possible subsequent pathogenic mechanisms. METHODS Published literature contained within PubMed, Embase, and the Cochrane Library was used in our meta-analysis. Data were analyzed with the STATA 13.1 software package using pooled odds ratios (ORs) with 95% confidence intervals (95% CI). Egger's regression test, Begg's rank correlation test, and Begg's funnel plot were used to test publication bias. RESULTS A total of 12 case-control studies comprising 5827 subjects (3335 cases and 2492 controls) were available for our meta-analysis. The IL1B -31C > T polymorphism was associated with an increased risk of H. pylori infection in Asian and Latin American population (TT + CT vs. CC, OR = 1.29, 95% CI = 1.14-1.46; TT vs. CT + CC, OR = 1.23, 95% CI = 1.09-1.39; TT vs. CC, OR = 1.43, 95% CI = 1.22-1.67; T allele vs. C allele, OR = 1.19, 95% CI = 1.10-1.29). A significant association was also found for all genetic models in various subgroups (cancer and no-cancer, hospital- and population-based). CONCLUSION Our meta-analysis demonstrated that IL1B -31C > T polymorphism might increase H. pylori infection risk in Asian and Latin American population. Further studies with different ethnicities and larger sample size are required to validate this result.
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Affiliation(s)
- Xudong Sun
- Department of Pathogenic Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yuanyuan Xu
- Department of Pathogenic Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Fuhua Zhang
- Department of Gastroenterology, Second Hospital of Gansu Province, Lanzhou 730000, China
| | - Tao Jing
- Department of Pathogenic Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jian Han
- Department of Pathogenic Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Jinhua Zhang
- Department of Gastroenterology, Second Hospital of Gansu Province, Lanzhou 730000, China.
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Potential Complications of Helicobacter pylori Infection in Children of a Non-Urban Community. ARCHIVES OF PEDIATRIC INFECTIOUS DISEASES 2015. [DOI: 10.5812/pedinfect.23510] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Sun YH, Yang XL, Li F, Song LJ, Li J. Effect of anti- Helicobacter pylori treatment on early diabetic kidney disease. Shijie Huaren Xiaohua Zazhi 2015; 23:1202-1207. [DOI: 10.11569/wcjd.v23.i7.1202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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 assess the effect of anti-Helicobacter pylori (H. pylori) therapy on chronic kidney disease (CKD) associated with type 2 diabetes mellitus (T2DM).
METHODS: Seventy-five T2DM patients with newly diagnosed CKD and H. pylori infection were randomly divided into an anti-H. pylori therapy group (n = 39) and a control group (n = 36). All of the patients received routine treatment for three months. Patients in the anti-H. pylori group were additionally given anti-H. pylori therapy. Clinical indices including fasting blood glucose (FBG), 2-h plasma glucose (2-h PG), hemoglobin A1c (HbA1c), systolic blood pressure (SBP), diastolic blood pressure (DBP), cholesterol (TC), triglyceride (TG), urinary albumin/creatitine ratio (UAlb/Cr), C-reactive protein (CRP), tumor necrosis factor α (TNF-α), plasma endothelin 1 (ET-1), and homocysteine (HCY) were recorded before and three months after treatment.
RESULTS: No significant differences were observed in all clinical indices between the two groups before treatment (P > 0.05). The eradication rate of H. pylori in the anti-H. pylori group was significantly higher than that in the control group three months after treatment (P < 0.01). There were no differences in FBG, 2-h PG, SBP, DBP, HbA1c, TG, or TC between before and after treatment (P > 0.05). At three months after treatment, UAlb/Cr, CRP, ET-1, TNF-α and HCY decreased significantly in both groups (P < 0.05), and changes were statistically significant different between the two groups (P < 0.05).
CONCLUSION: Anti-H. pylori therapy is beneficial for T2DM patients with CKD, because it can help control UAlb/Cr, CRP, ET-1, TNF-α, and HCY and even play an important role in postponing CKD.
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