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Sotelo S, Manterola C, Otzen T, Morales E, Castillo I. Prevalence of Gastric Preneoplastic Lesions in First-Degree Relatives of Patients with Gastric Cancer: a Cross-Sectional Study. J Gastrointest Cancer 2023; 54:513-519. [PMID: 35488975 DOI: 10.1007/s12029-022-00827-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2022] [Indexed: 11/11/2022]
Abstract
PURPOSE Worldwide, gastric cancer (GC) is the 5th cancer with the highest incidence and the 4th in mortality. To reduce it, one strategy is to diagnose preneoplastic lesions (PNL): atrophic gastritis (AG), intestinal metaplasia (IM), and dysplasia (DYS); to form risk groups on which to focus surveillance efforts as are first-degree relatives (FDR). The aim of this study was to determine prevalence of gastric PNL in FDR of patients with GC, and to study association with sex, age, and Helicobacter pylorii (Hp) infection. METHODS Cross-sectional study. One hundred and ten FDR, aged between 50 and 65 years, 54.5 female, obtained through convenience sampling, were studied. Biodemographic data survey and upper gastrointestinal endoscopy with histological study were applied according to Sidney protocol, and focal lesions found. Diagnosis of these lesions and condition of mucosa was carried out by applying OLGA and OLGIM systems. Descriptive statistics, estimation of prevalence, odds ratio (OR), and 95% confidence intervals (95CI) were calculated. RESULTS Median age of study group was 56.5 years. Prevalence of PNL, AG, IM, and DYS were 86.4%, 82.7%, 54.5%, and 12.7% respectively. Advanced stages of OLGA and OLGIM were verified in 18.0% and 16.3% respectively. No association with sex, age, and Hp infection were found ([OR 3.10; 95CI 1.0; 9.64]; [OR 0.74; 95CI 0.26; 2.14]; [OR 0.58; 95CI 0.12; 2.77]) respectively. CONCLUSION FDR of patients with GC have a high prevalence of PNL, which makes them a risk group in which endoscopic surveillance should be applied.
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Affiliation(s)
- Sergio Sotelo
- PhD Program in Medical Sciences, Universidad de La Frontera, Temuco, Chile
- Faculty of Medicine, Universidad Católica del Maule, Talca, Chile
- Hospital Regional de Talca, Talca, Chile
| | - Carlos Manterola
- Center of Morphological and Surgical Studies (CEMyQ), and PhD Program in Medical Sciences, and Millennium Nucleus on Sociomedicine, Universidad de La Frontera, Manuel Montt 115, 54-D, Temuco, Chile.
| | - Tamara Otzen
- Center of Morphological and Surgical Studies (CEMyQ), and PhD Program in Medical Sciences, and Millennium Nucleus on Sociomedicine, Universidad de La Frontera, Manuel Montt 115, 54-D, Temuco, Chile
| | - Erik Morales
- Faculty of Medicine, Universidad Católica del Maule, Talca, Chile
- Hospital Regional de Talca, Talca, Chile
| | - Iván Castillo
- Faculty of Medicine, Universidad Católica del Maule, Talca, Chile
- Hospital Regional de Talca, Talca, Chile
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2
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Potts C, Schearer J, Sebrell TA, Bair D, Ayler B, Love J, Dankoff J, Harris PR, Zosso D, Bimczok D. MNPmApp: An image analysis tool to quantify mononuclear phagocyte distribution in mucosal tissues. Cytometry A 2022; 101:1012-1026. [PMID: 35569131 PMCID: PMC9663762 DOI: 10.1002/cyto.a.24657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 03/27/2022] [Accepted: 05/12/2022] [Indexed: 01/27/2023]
Abstract
Mononuclear phagocytes (MNPs) such as dendritic cells and macrophages perform key sentinel functions in mucosal tissues and are responsible for inducing and maintaining adaptive immune responses to mucosal pathogens. Positioning of MNPs at the epithelial interface facilitates their access to luminally-derived antigens and regulates MNP function through soluble mediators or surface receptor interactions. Therefore, accurately quantifying the distribution of MNPs within mucosal tissues as well as their spatial relationship with other cells is important to infer functional cellular interactions in health and disease. In this study, we developed and validated a MATLAB-based tissue cytometry platform, termed "MNP mapping application" (MNPmApp), that performs high throughput analyses of MNP density and distribution in the gastrointestinal mucosa based on digital multicolor fluorescence microscopy images and that integrates a Monte Carlo modeling feature to assess randomness of MNP distribution. MNPmApp identified MNPs in tissue sections of the human gastric mucosa with 98 ± 2% specificity and 76 ± 15% sensitivity for HLA-DR+ MNPs and 98 ± 1% specificity and 85 ± 12% sensitivity for CD11c+ MNPs. Monte Carlo modeling revealed that mean MNP-MNP distances for both HLA-DR+ and CD11c+ MNPs were significantly lower than anticipated based on random cell placement, whereas MNP-epithelial distances were similar to randomly placed cells. Surprisingly, H. pylori infection had no significant impact on the number of HLA-DR and CD11c MNPs or their distribution within the gastric lamina propria. However, our study demonstrated that MNPmApp is a reliable and user-friendly tool for unbiased quantitation of MNPs and their distribution at mucosal sites.
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Affiliation(s)
- Catherine Potts
- Department of Mathematical Sciences, Montana State University, Bozeman, MT
| | - Julia Schearer
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT
| | - Thomas A Sebrell
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT
| | - Dominic Bair
- Department of Mathematical Sciences, Montana State University, Bozeman, MT
| | | | - Jordan Love
- Department of Mathematical Sciences, Montana State University, Bozeman, MT
| | - Jennifer Dankoff
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT
| | - Paul R. Harris
- Division of Pediatrics, Department of Pediatric Gastroenterology and Nutrition, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Dominique Zosso
- Department of Mathematical Sciences, Montana State University, Bozeman, MT
| | - Diane Bimczok
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT
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3
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Proteolytic Landscapes in Gastric Pathology and Cancerogenesis. Int J Mol Sci 2022; 23:ijms23052419. [PMID: 35269560 PMCID: PMC8910283 DOI: 10.3390/ijms23052419] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 02/01/2023] Open
Abstract
Gastric cancer is a leading cause of cancer-related death, and a large proportion of cases are inseparably linked to infections with the bacterial pathogen and type I carcinogen Helicobacter pylori. The development of gastric cancer follows a cascade of transformative tissue events in an inflammatory environment. Proteases of host origin as well as H. pylori-derived proteases contribute to disease progression at every stage, from chronic gastritis to gastric cancer. In the present article, we discuss the importance of (metallo-)proteases in colonization, epithelial inflammation, and barrier disruption in tissue transformation, deregulation of cell proliferation and cell death, as well as tumor metastasis and neoangiogenesis. Proteases of the matrix metalloproteinase (MMP) and a disintegrin and metalloproteinase domain-containing protein (ADAM) families, caspases, calpain, and the H. pylori proteases HtrA, Hp1012, and Hp0169 cleave substrates including extracellular matrix molecules, chemokines, and cytokines, as well as their cognate receptors, and thus shape the pathogenic microenvironment. This review aims to summarize the current understanding of how proteases contribute to disease progression in the gastric compartment.
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Mohammadzadeh R, Soleimanpour S, Pishdadian A, Farsiani H. Designing and development of epitope-based vaccines against Helicobacter pylori. Crit Rev Microbiol 2021; 48:489-512. [PMID: 34559599 DOI: 10.1080/1040841x.2021.1979934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Helicobacter pylori infection is the principal cause of serious diseases (e.g. gastric cancer and peptic ulcers). Antibiotic therapy is an inadequate strategy in H. pylori eradication because of which vaccination is an inevitable approach. Despite the presence of countless vaccine candidates, current vaccines in clinical trials have performed with poor efficacy which makes vaccination extremely challenging. Remarkable advancements in immunology and pathogenic biology have provided an appropriate opportunity to develop various epitope-based vaccines. The fusion of proper antigens involved in different aspects of H. pylori colonization and pathogenesis as well as peptide linkers and built-in adjuvants results in producing epitope-based vaccines with excellent therapeutic efficacy and negligible adverse effects. Difficulties of the in vitro culture of H. pylori, high genetic variation, and unfavourable immune responses against feeble epitopes in the complete antigen are major drawbacks of current vaccine strategies that epitope-based vaccines may overcome. Besides decreasing the biohazard risk, designing precise formulations, saving time and cost, and induction of maximum immunity with minimum adverse effects are the advantages of epitope-based vaccines. The present article is a comprehensive review of strategies for designing and developing epitope-based vaccines to provide insights into the innovative vaccination against H. pylori.
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Affiliation(s)
- Roghayeh Mohammadzadeh
- Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Microbiology and Virology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saman Soleimanpour
- Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Reference Tuberculosis Laboratory, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abbas Pishdadian
- Department of Immunology, School of Medicine, Zabol University of Medical Sciences, Zabol, Iran
| | - Hadi Farsiani
- Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Microbiology and Virology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Düzenli T, Ata E, Kösem M, Tanoğlu A. Ultrasonographic assessment of femoral cartilage thickness in patients with Helicobacter pylori infection. Int J Clin Pract 2021; 75:e14276. [PMID: 33914992 DOI: 10.1111/ijcp.14276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 04/26/2021] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES Helicobacter pylori is a major cause of gastritis and a potential trigger of inflammatory disease. The effect of H pylori infection on distal femoral cartilage has yet to be evaluated. The aim of this study was to evaluate femoral cartilage thickness in patients with H pylori infection and to find whether this infection affects femoral cartilage thickness. METHODS This cross-sectional study included 199 patients. To measure the thickness of femoral articular cartilage, 99 patients with H pylori infections and 100 with H pylori-negative controls were enrolled into two groups. The measurements were made using linear probe ultrasonography with the patients in supine positions and their knees in maximum flexion. Demographic, clinical, endoscopic and laboratory data were collected for all patients. RESULTS Both the right and left femoral condyles had thinner cartilage thickness in the H pylori-positive group than in the H pylori-negative group (P = .016, P = .036). For the intercondylar area and lateral femoral condyles, although the H pylori-positive patients had thinner femoral cartilage thickness than the H pylori-negative individuals for both extremities, this finding was not statistically significant (P > .05). CONCLUSION Femoral cartilage was thinner in patients with H pylori than patients without H pylori for right and left medial femoral condyles. This study suggests that H pylori infections may affect femoral cartilage thickness and potentially increase the risk of cartilage degeneration.
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Affiliation(s)
- Tolga Düzenli
- Department of Gastroenterology, Hitit University Erol Olcok Training and Research Hospital, Corum, Turkey
| | - Emre Ata
- Department of Physical Medicine and Rehabilitation, Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey
| | - Murat Kösem
- Department of Physical Medicine and Rehabilitation, Afyon Emirdağ State Hospital, Afyon, Turkey
| | - Alpaslan Tanoğlu
- Department of Gastroenterology, Sancaktepe Şehit Prof Dr Ilhan Varank Training and Research Hospital, Istanbul, Turkey
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Wu F, Chen C, Peng F. Potential Association Between Asthma, Helicobacter pylori Infection, and Gastric Cancer. Front Oncol 2021; 11:630235. [PMID: 33763365 PMCID: PMC7982477 DOI: 10.3389/fonc.2021.630235] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 02/05/2021] [Indexed: 02/01/2023] Open
Abstract
Background: The prevalence of Helicobacter pylori infection (HPI) is still high around the world, which induces gastric diseases, such as gastric cancer (GC). The epidemiological investigation showed that there was an association between HPI and asthma (AST). Coptidis rhizoma (CR) has been reported as an herbal medicine with anti-inflammatory and anti-bacterial effects. Purpose: The present study was aimed to investigate the protective mechanism of HPI on AST and its adverse effects on the development of GC. Coptis chinensis was used to neutralize the damage of HPI in GC and to hopefully intensify certain protective pathways for AST. Method: The information about HPI was obtained from the public database Comparative Toxicogenomics Database (CTD). The related targets in AST and GC were obtained from the public database GeneCards. The ingredients of CR were obtained from the public database Traditional Chinese Medicine Systems Pharmacology (TCMSP). The network pharmacology including gene ontology (GO) enrichment analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis, and molecular docking were utilized. Protein–protein interaction was constructed to analyze the functional link of target genes. The molecular docking was employed to study the potential effects of active ingredients from CR on key target genes. Result: The top 10 key targets of HPI for AST were CXCL9, CX3CL1, CCL20, CCL4, PF4, CCL27, C5AR1, PPBP, KNG1, and ADORA1. The GO biological process involved mainly leukocyte migration, which responded to bacterium. The (R)-canadine and quercetin were selected from C. chinensis, which were employed to explore if they inhibited the HPI synchronously and protect against AST. The targets of (R)-canadine were SLC6A4 and OPRM1. For ingredient quercetin, the targets were AKR1B1 and VCAM1. Conclusion: CXCL9 and VCAM1 were the common targets of AST and HPI, which might be one of the imported targets of HPI for AST. Quercetin could be an effective ingredient to suppress HPI and help prevent AST.
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Affiliation(s)
- Fengxia Wu
- School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Cai Chen
- Shandong Institute of Advanced Technology, Chinese Academy of Sciences, Jinan, China
| | - Fulai Peng
- Shandong Institute of Advanced Technology, Chinese Academy of Sciences, Jinan, China
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A novel gastroprotective effect of zeaxanthin against stress-induced gastritis in male rats targeting the expression of HIF-1α, TFF-1 and MMP-9 through PI3K/Akt/JNK signaling pathway. Life Sci 2021; 273:119297. [PMID: 33689686 DOI: 10.1016/j.lfs.2021.119297] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/21/2021] [Accepted: 02/26/2021] [Indexed: 02/06/2023]
Abstract
Stress-induced gastritis is a common problem in the intensive care unit. Zeaxanthin (ZE), a non-provitamin A carotenoid has been known to exert antioxidant and anti-inflammatory effects. In this study, we examined the effect of ZE on water avoidance stress (WAS)-induced gastritis in rats. 24 Sprague' Dawley male rats were divided into four groups; control, ZE, WAS and WAS+ZE. In the stressed rats, treatment with ZE effectively downregulated the gastric levels of total oxidant status (TOS), myeloperoxidase (MPO) and malondialdehyde (MDA), with significant upregulation of the antioxidant enzymes' activities and gastric levels of prostagladin-E2 (PGE2) as compared to the untreated stressed one. As noticed in the present study, ZE significantly decrease the gastric levels of interleukin-1 β (IL-1β) and IL-6 as well as suppression of nuclear transcription factor kappa-B (NF-κB) immunohistochemical expression together with upregulation of trefoil factor-1 (TFF-1) gene expression. Moreover, in the untreated WAS-induced gastritis group, gastrin and corticosterone levels were significantly increased together with upregulation of the gene expression of hypoxia inducible factor-1α (HIF-1α), matrix metalloproteinase-9 (MMP-9), PI3K, Akt and JNK in the gastric tissues, which significantly improved by ZE administration. These all positive effects of ZE reflected on reduction of microscopic gastric mucosal damage and inflammatory cell infiltration with improvement of ulcer score. Our results discover that ZE has a new gastroprotective effect against stress-induced gastritis in rats, primarily through its antioxidative and anti-inflammatory effects, which are expressed in the regulation of the MMP-9 and HIF-1α signaling pathways.
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8
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Slomiany BL, Slomiany A. Role of LPS-elicited signaling in triggering gastric mucosal inflammatory responses to H. pylori: modulatory effect of ghrelin. Inflammopharmacology 2017; 25:415-429. [PMID: 28516374 DOI: 10.1007/s10787-017-0360-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 05/05/2017] [Indexed: 12/14/2022]
Abstract
Infection with Helicobacter pylori is a primary culprit in the etiology of gastric disease, and its cell-wall lipopolysaccharide (LPS) is recognized as a potent endotoxin responsible for triggering a pattern of the mucosal inflammatory responses. The engagement by the LPS of gastric mucosal Toll-like receptor 4 (TLR4) leads to initiation of signal transduction events characterized by the activation of mitogen-activated protein kinase (MAPK) cascade, induction of phosphoinositide-specific phospholipase C (PLC)/protein kinase C (PKC)/phosphatidylinositol 3-kinase (PI3K) pathway, and up-regulation in Src/Akt. These signaling events in turn exert their influence over H. pylori-elicited excessive generation of NO and PGE2 caused by the disturbances in nitric oxide synthase and cyclooxygenase isozyme systems, increase in epidermal growth factor receptor transactivation, and the induction in matrix metalloproteinase-9 (MMP-9) release. Interestingly, the extent of gastric mucosal inflammatory response to H. pylori is influenced by a peptide hormone, ghrelin, the action of which relays on the growth hormone secretagogue receptor type 1a (GHS-R1a)-mediated mobilization of G-protein dependent transduction pathways. Yet, the signals triggered by TLR-4 activation as well as those arising through GHS-R1a stimulation converge at MAPK and PLC/PKC/PI3K pathways that form a key integration node for proinflammatory signals generated by H. pylori LPS as well as for those involved in modulation of inflammation by ghrelin. Hence, therapeutic targeting these signals' convergence and integration node could provide a novel and attractive opportunities for developing more effective treatments of H. pylori-related gastric disease.
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Affiliation(s)
- B L Slomiany
- Research Center, C855, Rutgers School of Dental Medicine, Rutgers, The State University of New Jersey, 110 Bergen Street, PO Box 1709, Newark, NJ, 07103-2400, USA
| | - A Slomiany
- Research Center, C855, Rutgers School of Dental Medicine, Rutgers, The State University of New Jersey, 110 Bergen Street, PO Box 1709, Newark, NJ, 07103-2400, USA.
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Jansen AFM, Schoffelen T, Textoris J, Mege JL, Bleeker-Rovers CP, Roest HIJ, Wever PC, Joosten LAB, Netea MG, van de Vosse E, van Deuren M. Involvement of matrix metalloproteinases in chronic Q fever. Clin Microbiol Infect 2017; 23:487.e7-487.e13. [PMID: 28179203 DOI: 10.1016/j.cmi.2017.01.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 01/20/2017] [Accepted: 01/28/2017] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Chronic Q fever is a persistent infection with the intracellular Gram-negative bacterium Coxiella burnetii, which can lead to complications of infected aneurysms. Matrix metalloproteinases (MMPs) cleave extracellular matrix and are involved in infections as well as aneurysms. We aimed to study the role of MMPs in the pathogenesis of chronic Q fever. METHODS We investigated gene expression of MMPs through microarray analysis and MMP production with ELISA in C. burnetii-stimulated peripheral blood mononuclear cells (PBMCs) of patients with chronic Q fever and healthy controls. Twenty single nucleotide polymorphisms (SNPs) of MMP and tissue inhibitor of MMP genes were genotyped in 139 patients with chronic Q fever and 220 controls with similar cardiovascular co-morbidity. Additionally, circulating MMPs levels in patients with chronic Q fever were compared with those in cardiovascular controls with and without a history of past Q fever. RESULTS In healthy controls, the MMP pathway involving four genes (MMP1, MMP7, MMP10, MMP19) was significantly up-regulated in C. burnetii-stimulated but not in Escherichia coli lipopolysaccharide -stimulated PBMCs. Coxiella burnetii induced MMP-1 and MMP-9 production in PBMCs of healthy individuals (both p<0.001), individuals with past Q fever (p<0.05, p<0.01, respectively) and of patients with chronic Q fever (both p<0.001). SNPs in MMP7 (rs11568810) (p<0.05) and MMP9 (rs17576) (p<0.05) were more common in patients with chronic Q fever. Circulating MMP-7 serum levels were higher in patients with chronic Q fever (median 33.5 ng/mL, interquartile range 22.3-45.7 ng/mL) than controls (20.6 ng/mL, 15.9-33.8 ng/mL). CONCLUSION Coxiella burnetii-induced MMP production may contribute to the development of chronic Q fever.
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Affiliation(s)
- A F M Jansen
- Department of Internal Medicine, Division of Infectious Diseases, Radboud University Medical Centre, Nijmegen, The Netherlands; Radboud Expert Centre for Q fever and Radboud Centre for Infectious Diseases (RCI), Radboud University Medical Centre, The Netherlands.
| | - T Schoffelen
- Department of Internal Medicine, Division of Infectious Diseases, Radboud University Medical Centre, Nijmegen, The Netherlands; Radboud Expert Centre for Q fever and Radboud Centre for Infectious Diseases (RCI), Radboud University Medical Centre, The Netherlands
| | - J Textoris
- Université Claude Bernard Lyon 1, Hospices Civils de Lyon, bioMérieux; "Pathophysiology of Injury Induced Immunosuppression (PI3)", Hôpital E. Herriot, Lyon, France
| | - J L Mege
- URMITE, Aix-Marseille University, Marseille, France
| | - C P Bleeker-Rovers
- Department of Internal Medicine, Division of Infectious Diseases, Radboud University Medical Centre, Nijmegen, The Netherlands; Radboud Expert Centre for Q fever and Radboud Centre for Infectious Diseases (RCI), Radboud University Medical Centre, The Netherlands
| | - H I J Roest
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Lelystad, The Netherlands
| | - P C Wever
- Department of Medical Microbiology and Infection Control, Jeroen Bosch Hospital, 's-Hertogenbosch, The Netherlands
| | - L A B Joosten
- Department of Internal Medicine, Division of Infectious Diseases, Radboud University Medical Centre, Nijmegen, The Netherlands; Radboud Expert Centre for Q fever and Radboud Centre for Infectious Diseases (RCI), Radboud University Medical Centre, The Netherlands
| | - M G Netea
- Department of Internal Medicine, Division of Infectious Diseases, Radboud University Medical Centre, Nijmegen, The Netherlands; Radboud Expert Centre for Q fever and Radboud Centre for Infectious Diseases (RCI), Radboud University Medical Centre, The Netherlands
| | - E van de Vosse
- Department of Infectious Diseases, Leiden University Medical Centre, Leiden, The Netherlands
| | - M van Deuren
- Department of Internal Medicine, Division of Infectious Diseases, Radboud University Medical Centre, Nijmegen, The Netherlands; Radboud Expert Centre for Q fever and Radboud Centre for Infectious Diseases (RCI), Radboud University Medical Centre, The Netherlands
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Slomiany BL, Slomiany A. Helicobacter pylori-induced changes in microtubule dynamics conferred by α-tubulin phosphorylation on Ser/Tyr mediate gastric mucosal secretion of matrix metalloproteinase-9 (MMP-9) and its modulation by ghrelin. Inflammopharmacology 2016; 24:197-205. [PMID: 27613723 DOI: 10.1007/s10787-016-0278-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 08/27/2016] [Indexed: 12/18/2022]
Abstract
Regulation of matrix metalloproteinase-9 (MMP-9) secretion in response to proinflammatory challenge remains under a strict control of factors that affect the stability dynamics of the major cytoskeleton polymeric structures, microtubules (MTs). In this study, we report that H. pylori LPS-elicited induction gastric mucosal MMP-9 secretion is accompanied by the enhancement in MT stabilization as evidenced by the increase in α-tubulin acetylation and detyrosination while the modulatory influence of hormone, ghrelin, is associated with MT destabilization and reflected in a decrease in α-tubulin acetylation and detyrosination. Further, we reveal that the LPS-induced enhancement in MT stabilization and up-regulation in MMP-9 secretion as well as the modulatory influence of ghrelin occur with the involvement of PKCδ and SFK. The LPS effect is reflected in a marked increase in PKCδ-mediated α-tubulin phosphorylation on Ser, while the modulatory effect of ghrelin on MT dynamics and MMP-9 secretion is manifested by the SFK-dependent phosphorylation of α-tubulin on Tyr. Moreover, the changes in α-tubulin phosphorylation and MT stabilization dynamics occur in concert with the Golgi recruitment and activation of PKD2 and Arf-GEF. The findings demonstrate that the enhancement in gastric mucosal MMP-9 secretion in response to H. pylori and its modulation by ghrelin are the result of changes in MT dynamics conferred by PKCδ/SFK- mediated α-tubulin Ser/Tyr phosphorylation.
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Affiliation(s)
- B L Slomiany
- Research Center, C875 Rutgers School of Dental Medicine, Rutgers, The State University of New Jersey, 110 Bergen Street, PO Box 1709, Newark, NJ, 07103-2400, USA.
| | - A Slomiany
- Research Center, C875 Rutgers School of Dental Medicine, Rutgers, The State University of New Jersey, 110 Bergen Street, PO Box 1709, Newark, NJ, 07103-2400, USA
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11
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Role of protein kinase D2 phosphorylation on Tyr in modulation by ghrelin of Helicobacter pylori-induced up-regulation in gastric mucosal matrix metalloproteinase-9 (MMP-9) secretion. Inflammopharmacology 2016; 24:119-26. [PMID: 27209313 DOI: 10.1007/s10787-016-0267-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 05/10/2016] [Indexed: 01/26/2023]
Abstract
Matrix metalloproteinas-9 (MMP-9) is a glycosylated endopeptidase associated with host reaction to microbial endotoxins and also characterizes gastric mucosal inflammatory response to H. pylori infection. Here, we report on the factors involved in gastric mucosal MMP-9 secretion in response to H. pylori LPS, and the effect of hormone, ghrelin. We show that both the LPS-elicited induction in MMP-9 secretion and also the modulatory influence of ghrelin occur at the level of MMP-9 processing between the endoplasmic reticulum (ER) and Golgi. Further, we demonstrate that the LPS effect is associated with up-regulation in the activation of Arf1, a small GTPase of the ADP-ribosylation factor family, and the recruitment and phosphorylation of protein kinase D2 (PKD2), involved in the secretory cargo processing in the Golgi. Moreover, we reveal that the LPS-induced up-regulation in MMP-9 secretion is reflected in a marked increase in PKCδ-mediated PKD2 phosphorylation on Ser, while the modulatory effect of ghrelin is manifested by the SFK-PTKs-dependent phosphorylation of PKD2 on Tyr. Thus, our findings demonstrate the role of Arf1/PKD2 in mediation of H. pylori LPS-induced up-regulation in gastric mucosal MMP-9 secretion and suggest the modulatory mechanism of ghrelin action.
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12
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Helicobacter pylori-elicited induction in gastric mucosal matrix metalloproteinase-9 (MMP-9) release involves ERK-dependent cPLA2 activation and its recruitment to the membrane-localized Rac1/p38 complex. Inflammopharmacology 2016; 24:87-95. [PMID: 26886372 DOI: 10.1007/s10787-016-0261-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 02/04/2016] [Indexed: 01/23/2023]
Abstract
Matrix metalloproteinases (MMPs) are a family of endopeptidases implicated in a wide rage of degenerative and inflammatory diseases, including Helicobacter pylori-associated gastritis, and gastric and duodenal ulcer. As gastric mucosal inflammatory responses to H. pylori are characterized by the rise in MMP-9 production, as well as the induction in mitogen-activated protein kinase (MAPK) and Rac1 activation, we investigated the role of Rac1/MAPK in the processes associated with the release of MMP-9. We show that H. pylori LPS-elicited induction in gastric mucosal MMP-9 release is associated with MAPK, ERK and p38 activation, and occurs with the involvement of Rac1 and cytosolic phospholipase A2 (cPLA2). Further, we demonstrate that the LPS-induced MMP-9 release requires ERK-mediated phosphorylation of cPLA2 on Ser(505) that is essential for its membrane localization with Rac1, and that this process necessitates p38 participation. Moreover, we reveal that the activation and membrane translocation of p38 to the Rac1-GTP complex plays a pivotal role in cPLA2-dependent enhancement in MMP-9 release. Hence, our findings provide a strong evidence for the role of ERK/cPLA2 and Rac1/p38/cPLA2 cascade in H. pylori LPS-induced up-regulation in gastric mucosal MMP-9 release.
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De Falco M, Lucariello A, Iaquinto S, Esposito V, Guerra G, De Luca A. Molecular Mechanisms of Helicobacter pylori Pathogenesis. J Cell Physiol 2015; 230:1702-7. [PMID: 25639461 DOI: 10.1002/jcp.24933] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 01/16/2015] [Indexed: 12/12/2022]
Abstract
Helicobacter pylori infects 50% of mankind. The vast majority of H. pylori infection occurs in the developing countries where up to 80% of the middle-aged adults may be infected. Bacterial infection causes an inflammatory response that proceeds through a series of intermediated stages of precancerous lesions (gastritis, atrophy, intestinal metaplasia, and dysplasia). Among infected individuals, approximately 10% develops severe gastric lesions such as peptic ulcer disease, 1-3% progresses to gastric cancer (GC) with a low 5-year survival rate, and 0.1% develops mucosa-associated lymphoid tissue (MALT). GC is one of the most common cancer and the third leading cause of cancer-related deaths worldwide. In this review, we have summarized the most recent papers about molecular mechanisms of H. pylori pathogenesis. The main important steps of H. pylori infection such as adhesion, entry in epithelial gastric cells, activation of intracellular pathways until epigenetic modifications have been described.
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Affiliation(s)
- Maria De Falco
- Department of Biology, University Federico II of Naples, Naples, Italy; National Institute of Biostructures and Biosystems (INBB), Rome, Italy
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