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Kumari P, Yadav S, Sarkar S, Satheeshkumar PK. Cleavage of cell junction proteins as a host invasion strategy in leptospirosis. Appl Microbiol Biotechnol 2024; 108:119. [PMID: 38204132 PMCID: PMC10781872 DOI: 10.1007/s00253-023-12945-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/17/2023] [Accepted: 10/24/2023] [Indexed: 01/12/2024]
Abstract
Infection and invasion are the prerequisites for developing the disease symptoms in a host. While the probable mechanism of host invasion and pathogenesis is known in many pathogens, very little information is available on Leptospira invasion/pathogenesis. For causing systemic infection Leptospira must transmigrate across epithelial barriers, which is the most critical and challenging step. Extracellular and membrane-bound proteases play a crucial role in the invasion process. An extensive search for the proteins experimentally proven to be involved in the invasion process through cell junction cleavage in other pathogens has resulted in identifying 26 proteins. The similarity searches on the Leptospira genome for counterparts of these 26 pathogenesis-related proteins identified at least 12 probable coding sequences. The proteins were either extracellular or membrane-bound with a proteolytic domain to cleave the cell junction proteins. This review will emphasize our current understanding of the pathogenic aspects of host cell junction-pathogenic protein interactions involved in the invasion process. Further, potential candidate proteins with cell junction cleavage properties that may be exploited in the diagnostic/therapeutic aspects of leptospirosis will also be discussed. KEY POINTS: • The review focussed on the cell junction cleavage proteins in bacterial pathogenesis • Cell junction disruptors from Leptospira genome are identified using bioinformatics • The review provides insights into the therapeutic/diagnostic interventions possible.
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Affiliation(s)
- Preeti Kumari
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Suhani Yadav
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Sresha Sarkar
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Padikara K Satheeshkumar
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India.
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2
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Sijmons D, Collett S, Soliman C, Guy AJ, Scott AM, Durrant LG, Elbourne A, Walduck AK, Ramsland PA. Probing the expression and adhesion of glycans involved in Helicobacter pylori infection. Sci Rep 2024; 14:8587. [PMID: 38615147 PMCID: PMC11016089 DOI: 10.1038/s41598-024-59234-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 04/08/2024] [Indexed: 04/15/2024] Open
Abstract
Helicobacter pylori infects approximately half the human population and has an unusual infective niche of the human stomach. Helicobacter pylori is a major cause of gastritis and has been classified as a group 1 carcinogen by the WHO. Treatment involves triple or quadruple antibiotic therapy, but antibiotic resistance is becoming increasingly prevalent. Helicobacter pylori expresses certain blood group related antigens (Lewis system) as a part of its lipopolysaccharide (LPS), which is thought to assist in immune evasion. Additionally, H. pylori LPS participates in adhesion to host cells alongside several adhesion proteins. This study profiled the carbohydrates of H. pylori reference strains (SS1 and 26695) using monoclonal antibodies (mAbs) and lectins, identifying interactions between two carbohydrate-targeting mAbs and multiple lectins. Atomic force microscopy (AFM) scans were used to probe lectin and antibody interactions with the bacterial surfaces. The selected mAb and lectins displayed an increased adhesive force over the surface of the curved H. pylori rods. Furthermore, this study demonstrates the ability of anti-carbohydrate antibodies to reduce the adhesion of H. pylori 26695 to human gastric adenocarcinoma cells via AFM. Targeting bacterial carbohydrates to disrupt crucial adhesion and immune evasion mechanisms represents a promising strategy for combating H. pylori infection.
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Affiliation(s)
- Daniel Sijmons
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Simon Collett
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Caroline Soliman
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, 3000, Australia
| | - Andrew J Guy
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
- ZiP Diagnostics, Collingwood, VIC, 3066, Australia
| | - Andrew M Scott
- Olivia Newton-John Cancer Research Institute and School of Cancer Medicine, La Trobe University, Melbourne, VIC, Australia
- Department of Molecular Imaging and Therapy, Austin Health and Faculty of Medicine, The University of Melbourne, Melbourne, VIC, Australia
| | - Lindy G Durrant
- Scancell Limited, University of Nottingham Biodiscovery Institute, Nottingham, UK
- Division of Cancer and Stem Cells, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK
| | - Aaron Elbourne
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Anna K Walduck
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia.
- Rural Health Research Institute, Charles Sturt University, Orange, NSW, 2800, Australia.
| | - Paul A Ramsland
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia.
- Department of Immunology, Monash University, Melbourne, VIC, 3004, Australia.
- Department of Surgery, Austin Health, The University of Melbourne, Heidelberg, VIC, 3084, Australia.
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Spagnuolo R, Scarlata GGM, Paravati MR, Abenavoli L, Luzza F. Change in Diagnosis of Helicobacter pylori Infection in the Treatment-Failure Era. Antibiotics (Basel) 2024; 13:357. [PMID: 38667033 PMCID: PMC11047737 DOI: 10.3390/antibiotics13040357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/29/2024] Open
Abstract
Helicobacter pylori (H. pylori) infection is a prevalent global health issue, associated with several gastrointestinal disorders, including gastritis, peptic ulcers, and gastric cancer. The landscape of H. pylori treatment has evolved over the years, with increasing challenges due to antibiotic resistance and treatment failure. Traditional diagnostic methods, such as the urea breath test, stool antigen test, and endoscopy with biopsy, are commonly used in clinical practice. However, the emergence of antibiotic-resistant strains has led to a decline in treatment efficacy, necessitating a re-evaluation of common diagnostic tools. This narrative review aims to explore the possible changes in the diagnostic approach of H. pylori infection in the era of treatment failure. Molecular techniques, including polymerase chain reaction and whole genome sequencing, which have high sensitivity and specificity, allow the detection of genes associated with antibiotic resistance. On the other hand, culture isolation and a phenotypic antibiogram could be used in the diagnostic routine, although H. pylori is a fastidious bacterium. However, new molecular approaches are promising tools for detecting the pathogen and its resistance genes. In this regard, more real-life studies are needed to reveal new diagnostic tools suitable for identifying multidrug-resistant H. pylori strains and for outlining proper treatment.
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Affiliation(s)
| | | | | | | | - Francesco Luzza
- Department of Health Sciences, University “Magna Graecia”, 88100 Catanzaro, Italy; (R.S.); (G.G.M.S.); (M.R.P.); (L.A.)
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Guan X, Ning J, Fu W, Wang Y, Zhang J, Ding S. Helicobacter pylori with trx1 high expression promotes gastric diseases via upregulating the IL23A/NF-κB/IL8 pathway. Helicobacter 2024; 29:e13072. [PMID: 38686467 DOI: 10.1111/hel.13072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 03/19/2024] [Accepted: 03/28/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND Helicobacter pylori infection is one of the main causes of gastric cancer. thioredoxin-1 (Trx1) and arginase (RocF) expressed by H. pylori were found to be closely related to its pathogenicity. However, whether Trx1 and RocF can be used in clinical screening of highly pathogenic H. pylori and the pathogenesis of trx1 high expressing H. pylori remain still unknown. MATERIALS AND METHODS We investigated the expression level of H. pylori trx1 and H. pylori rocF in human gastric antrum tissues using reverse transcription and quantitative real-time PCR (RT-qPCR) and clarified the clinical application value of trx1 and rocF for screening highly pathogenic H. pylori. The pathogenic mechanism of Trx1 were further explored by RNA-seq of GES-1 cells co-cultured with trx1 high or low expressing H. pylori. Differentially expressed genes and signaling pathways were validated by RT-qPCR, Enzyme-linked immunosorbent assay (ELISA), western blot, immunohistochemistry and immunofluorescence. We also assessed the adherence of trx1 high and low expressing H. pylori to GES-1 cells. RESULTS We found that H. pylori trx1 and H. pylori rocF were more significantly expressed in the gastric cancer and peptic ulcer group than that in the gastritis group and the parallel diagnosis of H. pylori trx1 and H. pylori rocF had high sensitivity. The trx1 high expressing H. pylori had stronger adhesion ability to GES-1 cells and upregulated the interleukin (IL) 23A/nuclear factor κappaB (NF-κB)/IL17A, IL6, IL8 pathway. CONCLUSIONS H. pylori trx1 and H. pylori rocF can be used in clinical screening of highly pathogenic H. pylori and predicting the outcome of H. pylori infection. The trx1 high expressing H. pylori has stronger adhesion capacity and promotes the development of gastric diseases by upregulating the activation of NF-κB signaling pathway.
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Affiliation(s)
- Xin Guan
- Beijing Key Laboratory for Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Jing Ning
- Beijing Key Laboratory for Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Weiwei Fu
- Beijing Key Laboratory for Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Ye Wang
- Beijing Key Laboratory for Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Jing Zhang
- Beijing Key Laboratory for Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Shigang Ding
- Beijing Key Laboratory for Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Department of Gastroenterology, Peking University Third Hospital, Beijing, China
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Gonciarz W, Brzeziński M, Orłowska W, Wawrzyniak P, Lewandowski A, Narayanan VHB, Chmiela M. Spray-dried pH-sensitive chitosan microparticles loaded with Mycobacterium bovis BCG intended for supporting treatment of Helicobacter pylori infection. Sci Rep 2024; 14:4747. [PMID: 38413775 PMCID: PMC10899647 DOI: 10.1038/s41598-024-55353-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/22/2024] [Indexed: 02/29/2024] Open
Abstract
Gram-negative spiral-shaped Helicobacter pylori (Hp) bacteria induce the development of different gastric disorders. The growing resistance of Hp to antibiotics prompts to search for new therapeutic formulations. A promising candidate is Mycobacterium bovis BCG (BCG) with immunomodulatory properties. Biodegradable mucoadhesive chitosan is a good carrier for delivering BCG mycobacteria to the gastric mucosal environment. This study aimed to show whether BCG bacilli are able to increase the phagocytic activity of Cavia porcellus-guinea pig macrophages derived from the bone marrow towards fluorescently labeled Escherichia coli. Furthermore, to encapsulate live BCG bacilli, in spray-dried chitosan microparticles (CHI-MPs), and assess the pH-dependent release of mycobacteria in pH conditions mimicking gastric (acidic) or gut (alkaline) milieu. Microparticles (MPs) were made of chitosan and coated with Pluronic F-127-(Plur) or N-Acetyl-D-Glucosamine-(GlcNAc) to increase the MPs resistance to low pH or to increase anti-Hp effect, respectively. Spray-drying method was used for microencapsulation of live BCG. The biosafety of tested CHI-MPs has been confirmed using cell models in vitro and the model of guinea pig in vivo. The CHI-MPs loaded with BCG released live mycobacteria at pH 3.0 (CHI-GlcNAc-MPs) or pH 8.0. (CHI-Plur-MPs). The CHI-MPs loaded with live BCG can be used for per os inoculation of Cavia porcellus to check the effectiveness of delivered mycobacteria in increasing anti-H. pylori host response.
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Affiliation(s)
- Weronika Gonciarz
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland.
| | - Marek Brzeziński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-636, Lodz, Poland.
| | - Weronika Orłowska
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland
| | - Paweł Wawrzyniak
- Department of Environmental Engineering, Faculty of Process and Environmental Engineering, Lodz University of Technology, Stefana Zeromskiego 116, 90-924, Lodz, Poland
| | - Artur Lewandowski
- Department of Environmental Engineering, Faculty of Process and Environmental Engineering, Lodz University of Technology, Stefana Zeromskiego 116, 90-924, Lodz, Poland
| | - Vedha Hari B Narayanan
- Pharmaceutical Technology Laboratory, #214, ASK-II, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, 613401, India
| | - Magdalena Chmiela
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland
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Li J, Peng F, Huang H, Xu X, Guan Q, Xie M, Xiong T. Characterization, mechanism and in vivo validation of Helicobacter pylori antagonism by probiotics screened from infants' feces and oral cavity. Food Funct 2024; 15:1170-1190. [PMID: 38206113 DOI: 10.1039/d3fo04592g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Helicobacter pylori (H. pylori) infection is a major cause of chronic gastritis, intestinal metaplasia, and gastric carcinoma. Antibiotics, the conventional regimen for eliminating H. pylori, cause severe bacterial resistance, gut dysbiosis and hepatic insufficiency. Here, fifty lactic acid bacteria (LAB) were initially screened out of 266 strains obtained from infants' feces and oral cavity. The antagonistic properties of these 50 strains against H. pylori were investigated. Based on eight metrics combined with principal component analysis, three LAB with probiotic function and excellent anti-H. pylori capacity were affirmed. Combining dynamics test, metabolite assays, adhesion assays, co-cultivation experiments, and SEM and TEM observations, LAB were found to antagonize H. pylori by causing coccoid conversion and intercellular adhesion. Furthermore, it was found that LAB antagonized H. pylori by four pathways, i.e., production of anti-H. pylori substances, inhibition of H. pylori colonization, enhancement of the gastric mucosal barrier, and anti-inflammatory effect. In addition, animal model experiments verified that the final screened superior strain L. salivarius NCUH062003 had anti-H. pylori activity in vivo. LAB also reduced IL-8 secretion, ultimately alleviating the inflammatory response of gastric mucosa. Whole genome sequencing (WGS) data showed that the NCUH062003 genome contained the secondary metabolite biosynthesis gene cluster T3PKS. Furthermore, NCUH062003 had a strong energy metabolism and substance transport capacity, and produced a small molecule heat stable peptide (SHSP, 4.1-6.5 kDa). Meanwhile, LAB proved to be safe through antibiotic susceptibility testing and CARD database comparisons.
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Affiliation(s)
- Junyi Li
- State Key Laboratory of Food Science and Resources, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China.
- School of Food Science & Technology, Nanchang University, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China
| | - Fei Peng
- State Key Laboratory of Food Science and Resources, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China.
- School of Food Science & Technology, Nanchang University, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China
| | - Hui Huang
- State Key Laboratory of Food Science and Resources, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China.
- School of Food Science & Technology, Nanchang University, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China
| | - Xiaoyan Xu
- State Key Laboratory of Food Science and Resources, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China.
- School of Food Science & Technology, Nanchang University, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China
| | - Qianqian Guan
- State Key Laboratory of Food Science and Resources, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China.
- School of Food Science & Technology, Nanchang University, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China
| | - Mingyong Xie
- State Key Laboratory of Food Science and Resources, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China.
- School of Food Science & Technology, Nanchang University, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China
| | - Tao Xiong
- State Key Laboratory of Food Science and Resources, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China.
- School of Food Science & Technology, Nanchang University, No. 235 Nanjing East Road, Nanchang, Jiangxi, 330047, PR China
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Ciernikova S, Sevcikova A, Mladosievicova B, Mego M. Microbiome in Cancer Development and Treatment. Microorganisms 2023; 12:24. [PMID: 38257851 PMCID: PMC10819529 DOI: 10.3390/microorganisms12010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/13/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
Targeting the microbiome, microbiota-derived metabolites, and related pathways represents a significant challenge in oncology. Microbiome analyses have confirmed the negative impact of cancer treatment on gut homeostasis, resulting in acute dysbiosis and severe complications, including massive inflammatory immune response, mucosal barrier disruption, and bacterial translocation across the gut epithelium. Moreover, recent studies revealed the relationship between an imbalance in the gut microbiome and treatment-related toxicity. In this review, we provide current insights into the role of the microbiome in tumor development and the impact of gut and tumor microbiomes on chemo- and immunotherapy efficacy, as well as treatment-induced late effects, including cognitive impairment and cardiotoxicity. As discussed, microbiota modulation via probiotic supplementation and fecal microbiota transplantation represents a new trend in cancer patient care, aiming to increase bacterial diversity, alleviate acute and long-term treatment-induced toxicity, and improve the response to various treatment modalities. However, a more detailed understanding of the complex relationship between the microbiome and host can significantly contribute to integrating a microbiome-based approach into clinical practice. Determination of causal correlations might lead to the identification of clinically relevant diagnostic and prognostic microbial biomarkers. Notably, restoration of intestinal homeostasis could contribute to optimizing treatment efficacy and improving cancer patient outcomes.
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Affiliation(s)
- Sona Ciernikova
- Department of Genetics, Cancer Research Institute, Biomedical Research Center of the Slovak Academy of Sciences, Dubravska cesta 9, 845 05 Bratislava, Slovakia;
| | - Aneta Sevcikova
- Department of Genetics, Cancer Research Institute, Biomedical Research Center of the Slovak Academy of Sciences, Dubravska cesta 9, 845 05 Bratislava, Slovakia;
| | - Beata Mladosievicova
- Institute of Pathological Physiology, Faculty of Medicine, Comenius University, Sasinkova 4, 811 08 Bratislava, Slovakia;
| | - Michal Mego
- 2nd Department of Oncology, Faculty of Medicine, Comenius University and National Cancer Institute, 833 10 Bratislava, Slovakia;
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Li Y, Cao H, Qiu D, Wang N, Wang Y, Wen T, Wang J, Zhu H. The proteomics analysis of extracellular vesicles revealed the possible function of heat shock protein 60 in Helicobacter pylori infection. Cancer Cell Int 2023; 23:272. [PMID: 37974232 PMCID: PMC10652618 DOI: 10.1186/s12935-023-03131-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 11/09/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND Helicobacter pylori (H. pylori) infection is a major risk factor for gastric diseases, including gastritis and gastric cancer. Heat shock protein 60 (HSP60) is a chaperone protein involved in various cellular processes and has been implicated in the immune response to bacterial infections. Extracellular vesicles (EVs) containing various protein components play important roles in cell communication. In the present study, a systematic proteomic analysis of EVs obtained from H. pylori infected cells was performed and the EV-derived HSP60 function was studied. METHODS EVs were evaluated by nanoparticle tracking analysis, transmission electron microscopy and western blotting. The recognized protein components were quantified by label-free proteomics and subjected to bioinformatics assays. The expression of HSP60 in EVs, host cells and gastric cancers infected by H. pylori was determined by western blotting and immunohistochemical, respectively. In addition, the apoptotic regulation mechanisms of HSP60 in H. pylori infection were analyzed by western blotting and flow cytometry. RESULTS A total of 120 important differential proteins were identified in the EVs from H. pylori-infected cells and subjected to Gene Ontology analysis. Among them, CD63, HSP-70 and TSG101 were verified via western blotting. Moreover, HSP60 expression was significantly increased in the EVs from H. pylori-infected GES-1 cells. H. pylori infection promoted an abnormal increase in HSP60 expression in GES-1 cells, AGS cells, gastric mucosa and gastric cancer. In addition, knockdown of HSP60 suppressed the apoptosis of infected cells and the expression of Bcl2, and promoted the upregulation of Bax. CONCLUSION This study provides a comprehensive proteomic profile of EVs from H. pylori-infected cells, shedding light on the potential role of HSP60 in H. pylori infection. The findings underscore the significance of EV-derived HSP60 in the pathophysiology of H. pylori-associated diseases.
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Affiliation(s)
- Yujie Li
- Department of Clinical Laboratory, Kunshan Hospital Affiliated to Jiangsu University, Suzhou, 215300, Jiangsu, People's Republic of China
| | - Hui Cao
- Department of Food and Nutrition Safety, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Dewen Qiu
- Department of Clinical Laboratory, Jiangxi Maternal and Child Health Hospital Maternal and Child Heath Hospital of Nanchang College, Nanchang, 215300, People's Republic of China
| | - Nan Wang
- The School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | - Yan Wang
- Department of Clinical Laboratory, Kunshan Hospital Affiliated to Jiangsu University, Suzhou, 215300, Jiangsu, People's Republic of China
| | - Tingting Wen
- Department of Pharmacy, First People's Hospital of Kunshan, Suzhou, 215300, Jiangsu, People's Republic of China
| | - Jianjun Wang
- Department of Clinical Laboratory, Kunshan Hospital Affiliated to Jiangsu University, Suzhou, 215300, Jiangsu, People's Republic of China.
| | - Hong Zhu
- Department of Clinical Laboratory, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, People's Republic of China.
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Martinelli G, Fumagalli M, Piazza S, Maranta N, Genova F, Sperandeo P, Sangiovanni E, Polissi A, Dell’Agli M, De Fabiani E. Investigating the Molecular Mechanisms Underlying Early Response to Inflammation and Helicobacter pylori Infection in Human Gastric Epithelial Cells. Int J Mol Sci 2023; 24:15147. [PMID: 37894827 PMCID: PMC10607124 DOI: 10.3390/ijms242015147] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/06/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Helicobacter pylori is a leading cause of chronic gastric inflammation, generally associated with gastritis and adenocarcinoma. Activation of the NF-κB pathway mainly contributes to the inflammatory phenotype observed in H. pylori infection in humans and experimental models. Since the gastric epithelium undergoes rapid turnover, inflammation and pathogenicity of H. pylori result from early phase and chronically activated pathways. In the present study we investigated the early host response to H. pylori in non-tumoral human gastric epithelial cells (GES-1). To dissect the pathogen-specific mechanisms we also examined the response to tumor necrosis factor (TNF), a prototypical cytokine. By analyzing the activation state of NF-κB signaling, cytokine expression and secretion, and the transcriptome, we found that the inflammatory response of GES-1 cells to H. pylori and TNF results from activation of multiple pathways and transcription factors, e.g., NF-κB and CCAAT/enhancer-binding proteins (CEBPs). By comparing the transcriptomic profiles, we found that H. pylori infection induces a less potent inflammatory response than TNF but affects gene transcription to a greater extent by specifically inducing transcription factors such as CEBPβ and numerous zinc finger proteins. Our study provides insights on the cellular pathways modulated by H. pylori in non-tumoral human gastric cells unveiling new potential targets.
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Affiliation(s)
| | | | - Stefano Piazza
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, 20133 Milan, Italy; (G.M.); (M.F.); (N.M.); (F.G.); (P.S.); (E.S.); (A.P.); (M.D.); (E.D.F.)
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Gupta A, Shetty S, Mutalik S, Chandrashekar H R, K N, Mathew EM, Jha A, Mishra B, Rajpurohit S, Ravi G, Saha M, Moorkoth S. Treatment of H. pylori infection and gastric ulcer: Need for novel Pharmaceutical formulation. Heliyon 2023; 9:e20406. [PMID: 37810864 PMCID: PMC10550623 DOI: 10.1016/j.heliyon.2023.e20406] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/10/2023] Open
Abstract
Peptic ulcer disease (PUD) is one of the most prevalent gastro intestinal disorder which often leads to painful sores in the stomach lining and intestinal bleeding. Untreated Helicobacter pylori (H. pylori) infection is one of the major reasons for chronic PUD which, if left untreated, may also result in gastric cancer. Treatment of H. pylori is always a challenge to the treating doctor because of the poor bioavailability of the drug at the inner layers of gastric mucosa where the bacteria resides. This results in ineffective therapy and antibiotic resistance. Current treatment regimens available for gastric ulcer and H. pylori infection uses a combination of multiple antimicrobial agents, proton pump inhibitors (PPIs), H2-receptor antagonists, dual therapy, triple therapy, quadruple therapy and sequential therapy. This polypharmacy approach leads to patient noncompliance during long term therapy. Management of H. pylori induced gastric ulcer is a burning issue that necessitates alternative treatment options. Novel formulation strategies such as extended-release gastro retentive drug delivery systems (GRDDS) and nanoformulations have the potential to overcome the current bioavailability challenges. This review discusses the current status of H. pylori treatment, their limitations and the formulation strategies to overcome these shortcomings. Authors propose here an innovative strategy to improve the H. pylori eradication efficiency.
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Affiliation(s)
- Ashutosh Gupta
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Shiran Shetty
- Department of Gastroenterology and Hepatology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Raghu Chandrashekar H
- Department of Pharmaceutical Biotechnology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Nandakumar K
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Elizabeth Mary Mathew
- School of Pharmacy, Faculty of Health Sciences, University of Botswana, Gaborone, Botswana
| | - Abhishek Jha
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, Uttar Pradesh, India
| | - Brahmeshwar Mishra
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, Uttar Pradesh, India
| | - Siddheesh Rajpurohit
- Department of Gastroenterology and Hepatology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Gundawar Ravi
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Moumita Saha
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Sudheer Moorkoth
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
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11
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Jalil AT, Hassan MM, Ziyad RA, Jasim I, Zabibah R, Fadhil A. PDE5 inhibitors and gastric mucosa: implications for the management of peptic ulcer disease. Naunyn Schmiedebergs Arch Pharmacol 2023; 396:2261-2267. [PMID: 37119288 DOI: 10.1007/s00210-023-02503-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 04/16/2023] [Indexed: 05/01/2023]
Abstract
Peptic ulcer disease (PUD) continues to be a cause of significant morbidity and mortality worldwide. Almost two-thirds of PUD cases are asymptomatic. In symptomatic patients, epigastric pain is the most common presenting symptom of PUD, which is manifested by nausea, abdominal fullness, bloating, and dyspepsia. Most PUD cases are associated with the use of COX inhibitors or Helicobacter pylori infection, or both. The traditional management of PUD includes the use of proton pump inhibitors to reduce the gastric acid secretion and antibacterial drugs to combat H. pylori. Timely diagnosis and treatment of PUD are vital to reduce the risk of associated morbidity and mortality, as is prevention of PUD among patients at high risk, including COX inhibitors users and those infected with H. pylori. PDE5 inhibitors have been used for the management of erectile dysfunction and pulmonary hypertension for decades. In recent years, studies have mentioned tremendous pleiotropic effects of PDE5 inhibitors on gastrointestinal, urogenital, musculoskeletal, reproductive, cutaneous, and neurologic disorders. Recent data shows that PDE5 inhibition augments gastric mucosa protection, and here, we review the most recent findings regarding the use of PDE5 inhibitors for the prevention and management of PUD.
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Affiliation(s)
- Abduladheem Turki Jalil
- Department of Medical Laboratories Techniques, Al-Mustaqbal University College, Hillah, Babylon, Iraq.
| | | | - Rand Ali Ziyad
- National University of Science and Technology, Nasiriyah, Dhi-Qar, Iraq
| | - Ihsan Jasim
- Department of Pharmacology, Al-Turath University College, Baghdad, Iraq
| | - Rahman Zabibah
- Depaetment of Medical Laboratory Technology, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Ali Fadhil
- College of Medical Technology, Al-Farahidi University, Baghdad, Iraq
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12
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Gonciarz W, Chyb M, Chmiela M. Diminishing of Helicobacter pylori adhesion to Cavia porcellus gastric epithelial cells by BCG vaccine mycobacteria. Sci Rep 2023; 13:16305. [PMID: 37770504 PMCID: PMC10539345 DOI: 10.1038/s41598-023-43571-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 09/26/2023] [Indexed: 09/30/2023] Open
Abstract
Mycobacterium bovis onco-BCG bacilli used in immunotherapy of bladder cancer are candidates for training of immune cells towards microbial pathogens. Increasing antibiotic resistance of gastric pathogen Helicobacter pylori (Hp) prompts the search for new anti-Hp and immunomodulatory formulations. Colonization of gastric mucosa by Hp through mucin 5 AC (MUC5AC) ligands could potentially be a therapeutic target. The aim of this study was to examine the ability of onco-BCG mycobacteria to reduce Hp adhesion to gastric epithelial cells using Cavia porcellus model. Animals were inoculated per os with 0.85% NaCl, Hp alone, onco-BCG alone or with onco-BCG and Hp. After 7/28 days Mucin5AC and Hp binding to gastric epithelium were assessed in gastric tissue specimens by staining with anti-Mucin5AC and anti-Hp antibodies, respectively, both fluorescently labeled. Primary gastric epithelial cells were treated ex vivo with live Hp or Hp surface antigens (glycine extract or lipopolysaccharide) alone or with onco-BCG. In such cells MUC5AC and Hp binding were determined as above. Mycobacteria reduced the amount of MUC5AC animals infected with Hp and in gastric epithelial cells pulsed in vitro with Hp components. Decrease of MUC5AC driven in cell cultures in vitro and in gastric tissue exposed ex vivo to mycobacteria was related to diminished adhesion of H. pylori bacilli. Vaccine mycobacteria by diminishing the amount of MUC5AC in gastric epithelial cells may reduce Hp adhesion.
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Affiliation(s)
- Weronika Gonciarz
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12-16, 90-237, Lodz, Poland.
| | - Maciej Chyb
- Department of Molecular Microbiology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
- Bio-Med-Chem Doctoral School of the University of Lodz and Lodz Institutes of the Polish Academy of Sciences, Lodz, Poland
| | - Magdalena Chmiela
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12-16, 90-237, Lodz, Poland.
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13
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Xue X, Li R, Chen Z, Li G, Liu B, Guo S, Yue Q, Yang S, Xie L, Zhang Y, Zhao J, Tan R. The role of the symbiotic microecosystem in cancer: gut microbiota, metabolome, and host immunome. Front Immunol 2023; 14:1235827. [PMID: 37691931 PMCID: PMC10484231 DOI: 10.3389/fimmu.2023.1235827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/12/2023] [Indexed: 09/12/2023] Open
Abstract
The gut microbiota is not just a simple nutritional symbiosis that parasitizes the host; it is a complex and dynamic ecosystem that coevolves actively with the host and is involved in a variety of biological activities such as circadian rhythm regulation, energy metabolism, and immune response. The development of the immune system and immunological functions are significantly influenced by the interaction between the host and the microbiota. The interactions between gut microbiota and cancer are of a complex nature. The critical role that the gut microbiota plays in tumor occurrence, progression, and treatment is not clear despite the already done research. The development of precision medicine and cancer immunotherapy further emphasizes the importance and significance of the question of how the microbiota takes part in cancer development, progression, and treatment. This review summarizes recent literature on the relationship between the gut microbiome and cancer immunology. The findings suggest the existence of a "symbiotic microecosystem" formed by gut microbiota, metabolome, and host immunome that is fundamental for the pathogenesis analysis and the development of therapeutic strategies for cancer.
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Affiliation(s)
- Xiaoyu Xue
- School of Pharmacy, Southwest Medical University, Luzhou, China
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Rui Li
- Department of Radiation Oncology, Radiation Oncology Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Zhenni Chen
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
- College of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Guiyu Li
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Bisheng Liu
- Department of Radiation Oncology, Radiation Oncology Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Shanshan Guo
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Qianhua Yue
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Siye Yang
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Linlin Xie
- Traditional Chinese Medicine Hospital Affiliated to Southwest Medical University, Classical Chinese Medicine Diagnosis and Treatment Center, Luzhou, China
| | - Yiguan Zhang
- School of Pharmacy, Southwest Medical University, Luzhou, China
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Junning Zhao
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
| | - Ruirong Tan
- Sichuan Institute for Translational Chinese Medicine, Sichuan Academy of Chinese Medical Sciences, State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Sichuan Engineering Technology Research Center of Genuine Regional Drug, Sichuan Provincial Engineering Research Center of Formation Principle and Quality Evaluation of Genuine Medicinal Materials, Translational Chinese Medicine Key Laboratory of Sichuan Province, Chengdu, China
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14
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Almashhadany DA, Mayas SM, Omar JA, Muslat TAM. Frequency and seasonality of viable Helicobacter pylori in drinking water in Dhamar Governorate, Yemen. Ital J Food Saf 2023; 12:10855. [PMID: 37753204 PMCID: PMC10518832 DOI: 10.4081/ijfs.2023.10855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 08/29/2023] [Indexed: 09/28/2023] Open
Abstract
Helicobacter pylori is an important and common bacterial pathogen in humans. The accumulated evidence of the existence of H. pylori in water from different environmental sources suggests a water-borne transmission route. This study aimed to investigate the occurrence of H. pylori in different water sources used by human populations in Dhamar Governorate, Yemen. 250 samples were randomly collected from the municipal water supply network, wells, and springs. The samples were processed, plated onto modified campy-blood agar, and incubated under microaerobic conditions for 4-10 days. Bacterial identification was based on morphological properties and biochemical tests. Bacteriological analysis showed that 9.6% and 13.2% of tap and surface water samples were contaminated with H. pylori, respectively. Despite a higher frequency in samples from rural areas, these were not significantly (p=0.068) more contaminated than the samples from urban areas. Regarding the seasonal variations of H. pylori detection, 85.71% of positive samples were detected in the late winter and spring seasons (February to May). To conclude, H. pylori transmission through water is likely to occur in Dhamar Governorate. Further prospective studies are highly recommended to provide further evidence and a clearer picture of H. pylori transmission.
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Affiliation(s)
| | - Sara Mohammed Mayas
- Microbiology Section, Department of Biology, Faculty of Applied Sciences, Thamar University, Yemen
| | - Jiyan Ali Omar
- Department of Medical Microbiology, College of Science, Knowledge University, Erbil, Iraq
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15
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Livzan MA, Mozgovoi SI, Gaus OV, Shimanskaya AG, Kononov AV. Histopathological Evaluation of Gastric Mucosal Atrophy for Predicting Gastric Cancer Risk: Problems and Solutions. Diagnostics (Basel) 2023; 13:2478. [PMID: 37568841 PMCID: PMC10417051 DOI: 10.3390/diagnostics13152478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 07/19/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Patients suffering from chronic gastritis and developing gastric mucosa atrophy are at increased risk of the development of gastric cancer. The diagnosis of chronic atrophic gastritis (CAG) is a complex procedure involving a detailed history taking, a thorough physical examination and the use of laboratory and instrumental diagnostic methods among which the endoscopy of the upper digestive tract is the cornerstone because it allows the assessment of the topography of gastritis and identification of erosions and areas of intestinal metaplasia with the use of NBI endoscopy. However, the diagnosis of CAG requires morphological examination of the gastric mucosa. So, in addition to assessing macroscopic changes in the gastric mucosa, it is necessary to take biopsy specimens in accordance with the protocols for their morphological and immunohistochemical examination. In the absence of specific diagnostic stigmas of CAG, close cooperation between a clinician, endoscopist and pathologist is necessary. The article presents systematized data on the histopathological assessment of the gastric mucosa atrophy to predict the risk of gastric cancer.
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Affiliation(s)
- Maria A. Livzan
- Department of Internal Medicine and Gastroenterology, Omsk Sate Medical University, 644099 Omsk, Russia;
| | - Sergei I. Mozgovoi
- Department of Pathological Anatomy, Omsk Sate Medical University, 644099 Omsk, Russia
| | - Olga V. Gaus
- Department of Internal Medicine and Gastroenterology, Omsk Sate Medical University, 644099 Omsk, Russia;
| | - Anna G. Shimanskaya
- Department of Pathological Anatomy, Omsk Sate Medical University, 644099 Omsk, Russia
| | - Alexei V. Kononov
- Department of Pathological Anatomy, Omsk Sate Medical University, 644099 Omsk, Russia
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16
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Gonciarz W, Piątczak E, Chmiela M. The influence of Salvia cadmica Boiss. extracts on the M1/M2 polarization of macrophages primed with Helicobacter pylori lipopolysaccharide in conjunction with NF-kappa B activation, production of cytokines, phagocytic activity and total DNA methylation. J Ethnopharmacol 2023; 310:116386. [PMID: 36921911 DOI: 10.1016/j.jep.2023.116386] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/23/2023] [Accepted: 03/09/2023] [Indexed: 05/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The large number of secondary derivatives have been isolated from the genus Salvia with about 700 species, and used in the pharmacopoeia throughout the world. Various biological properties of Salvia formulations have been reported including as antioxidant, antimicrobial, hypotensive, anti-hyperglycemia, anti-hyperlipidemia, anti-cancer, and skin curative. Salvia cadmica Boiss. root and aerial part extracts enriched with polyphenols are bactericidal towards gastric pathogen Helicobacter pylori (Hp) and diminish deleterious effects induced by Hp lipopolysaccharide (LPS) towards gastric epithelial cells. AIM OF THIS STUDY To examine the influence of S. cadmica extracts on the M1/M2 polarization of macrophages primed with Hp LPS vs standard LPS Escherichia coli (Ec), and the macrophage cytokine as well as phagocytic activity, which are affected during Hp infection. MATERIAL AND METHODS Macrophages derived from THP-1 human monocytes primed with LPS Hp/Ec and/or S. cadmica extracts, were examined for the biomarkers of activation (surface, cytoplasmic or soluble), and phagocytic capacity. The bone marrow macrophages of Caviaporcellus were used to determine the engulfment of Hp. RESULTS Priming of THP-1 cells (24h) with LPS Hp/Ec resulted in polarization of M1 macrophages, activation of nuclear factor kappa B, secretion of tumor necrosis factor (TNF)-α, interleukin (IL)-1 beta, macrophage chemotactic protein (MCP)-1, immunoregulatory IL-10, and production of reactive oxygen species. These effects were diminished after restimulation of cells with S. cadmica extracts. THP-1 macrophages exposed to studied extracts showed an increased phagocytic capacity, in conjunction with elevated CD11b/CD11d expression and enhanced production of inducible nitric oxide synthase. They also increased Hp engulfment by bone marrow macrophages. These effects were not related to a global DNA methylation. CONCLUSIONS S. cadmica extracts possess an immunomodulating activity, which might be useful in control of H. pylori LPS driven activity of macrophages.
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Affiliation(s)
- Weronika Gonciarz
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha St., 90-237, Lodz, Poland.
| | - Ewelina Piątczak
- Department of Pharmaceutical Biotechnology, Medical University of Lodz, Muszyńskiego 1 St., 90-151, Lodz, Poland.
| | - Magdalena Chmiela
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha St., 90-237, Lodz, Poland.
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17
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Gonciarz W, Chmiela M, Kost B, Piątczak E, Brzeziński M. Stereocomplexed microparticles loaded with Salvia cadmica Boiss. extracts for enhancement of immune response towards Helicobacter pylori. Sci Rep 2023; 13:7039. [PMID: 37120681 PMCID: PMC10148839 DOI: 10.1038/s41598-023-34321-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/27/2023] [Indexed: 05/01/2023] Open
Abstract
Controlled delivery of therapeutic substance gives numerous advantages (prevents degradation, improves uptake, sustains concentration, lowers side effects). To encapsulate Salvia cadmica extracts (root or aerial part), enriched with polyphenols with immunomodulatory activity, in stereocomplexed microparticles (sc-PLA), for using them to enhance the immune response towards gastric pathogen Helicobacter pylori. Microparticles were made of biodegradable poly(lactic acid) (PLA) and poly(D-lactic acid) (PDLA). Their stereocomplexation was used to form microspheres and enhance the stability of the obtained particles in acidic/basic pH. The release of Salvia cadmica extracts was done in different pH (5.5, 7.4 and 8.0). The obtained polymers are safe in vitro and in vivo (guinea pig model). The sc-PLA microparticles release of S. cadmica extracts in pH 5.5, 7.4, and 8.0. S. cadmica extracts enhanced the phagocytic activity of guinea pig bone marrow-derived macrophages, which was diminished by H. pylori, and neutralized H. pylori driven enhanced production of tumor necrosis factor (TNF)-α and interleukin (IL)-10. The sc-PLA encapsulated S. cadmica extracts can be recommended for further in vivo study in guinea pigs infected with H. pylori to confirm their ability to improve an immune response towards this pathogen.
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Affiliation(s)
- Weronika Gonciarz
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, Institute of Microbiology, Biotechnology and Immunology, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland.
| | - Magdalena Chmiela
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, Institute of Microbiology, Biotechnology and Immunology, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland
| | - Bartłomiej Kost
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-636, Lodz, Poland
| | - Ewelina Piątczak
- Department of Pharmaceutical Biotechnology, Medical University of Lodz, Muszyńskiego 1, 90-151, Lodz, Poland
| | - Marek Brzeziński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-636, Lodz, Poland.
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18
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Alagesan P, Goodwin JC, Garman KS, Epplein M. Cancer Progress and Priorities: Gastric Cancer. Cancer Epidemiol Biomarkers Prev 2023; 32:473-486. [PMID: 37009691 PMCID: PMC10071414 DOI: 10.1158/1055-9965.epi-22-0994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/04/2022] [Accepted: 01/13/2023] [Indexed: 04/04/2023] Open
Abstract
Gastric cancer, the fifth leading cause of cancer worldwide, is estimated to be responsible for approximately 1.4% of all new cancers and 1.8% of all cancer-related deaths in the United States. Despite declining incidence rates and improved survival rates, however, gastric cancer continues to disproportionately affect racial and ethnic minorities and individuals of lower socioeconomic status at higher rates than the general population. To improve outcomes globally and address disparities within the United States, continued improvements are needed in risk factor modification and biomarker development and to improve access to existing preventative measures such as genetic testing and H. pylori eradication testing, in addition to expanding upon current clinical guidelines for premalignant disease to address gaps in endoscopic surveillance and early detection.
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Affiliation(s)
- Priya Alagesan
- Duke University School of Medicine, Durham, North Carolina
| | - Jessica C. Goodwin
- Department of Population Health Sciences, Duke University School of Medicine, Durham, North Carolina
- Morehouse School of Medicine, Atlanta, Georgia
| | - Katherine S. Garman
- Cancer Risk, Detection, and Interception Program, Duke Cancer Institute, Durham, North Carolina
- Division of Gastroenterology, Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Meira Epplein
- Department of Population Health Sciences, Duke University School of Medicine, Durham, North Carolina
- Cancer Risk, Detection, and Interception Program, Duke Cancer Institute, Durham, North Carolina
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Shu C, Xu Z, He C, Xu X, Zhou Y, Cai B, Zhu Y. Application of biomaterials in the eradication of Helicobacter pylori: A bibliometric analysis and overview. Front Microbiol 2023; 14:1081271. [PMID: 37007524 PMCID: PMC10061102 DOI: 10.3389/fmicb.2023.1081271] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 03/06/2023] [Indexed: 03/18/2023] Open
Abstract
Helicobacter pylori is a prominent cause of gastritis, peptic ulcer, and gastric cancer. It is naturally colonized on the surface of the mucus layer and mucosal epithelial cells of the gastric sinus, surrounded not only by mucus layer with high viscosity that prevents the contact of drug molecules with bacteria but also by multitudinous gastric acid and pepsin, inactivating the antibacterial drug. With high-performance biocompatibility and biological specificity, biomaterials emerge as promising prospects closely associated with H. pylori eradication recently. Aiming to thoroughly summarize the progressing research in this field, we have screened 101 publications from the web of science database and then a bibliometric investigation was performed on the research trends of the application of biomaterials in eradicating H. pylori over the last decade utilizing VOSviewer and CiteSpace to establish the relationship between the publications, countries, institutions, authors, and most relevant topics. Keyword analysis illustrates biomaterials including nanoparticles (NPs), metallic materials, liposomes, and polymers are employed most frequently. Depending on their constituent materials and characterized structures, biomaterials exhibit diverse prospects in eradicating H. pylori regarding extending drug delivery time, avoiding drug inactivation, target response, and addressing drug resistance. Furthermore, we overviewed the challenges and forthcoming research perspective of high-performance biomaterials in H. pylori eradication based on recent studies.
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Affiliation(s)
- Chunxi Shu
- Department of Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Zhou Xu
- The Second Clinical Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - Cong He
- Department of Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xinbo Xu
- Department of Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yanan Zhou
- Department of Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Baihui Cai
- The Second Clinical Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - Yin Zhu
- Department of Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
- *Correspondence: Yin Zhu,
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20
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Gonciarz W, Chyb M, Chmiela M. Mycobacterium bovis BCG increase the selected determinants of monocyte/macrophage activity, which were diminished in response to gastric pathogen Helicobacter pylori. Sci Rep 2023; 13:3107. [PMID: 36813949 DOI: 10.1038/s41598-023-30250-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 02/20/2023] [Indexed: 02/24/2023] Open
Abstract
High antibiotic resistance of gastric pathogen Helicobacter pylori (Hp) and the ability to escape the host immune response prompt searching for therapeutic immunomodulators. Bacillus Calmette-Guerin (BCG) vaccine with Mycobacterium bovis (Mb) is a candidate for modulation the activity of immunocompetent cells, and onco-BCG formulation was successfully used in immunotherapy of bladder cancer. We determined the influence of onco-BCG on the phagocytic capacity of human THP-1 monocyte/macrophage cells, using the model of Escherichia coli bioparticles and Hp fluorescently labeled. Deposition of cell integrins CD11b, CD11d, CD18, membrane/soluble lipopolysaccharide (LPS) receptors, CD14 and sCD14, respectively, and the production of macrophage chemotactic protein (MCP)-1 were determined. Furthermore, a global DNA methylation, was also assessed. Human THP-1 monocytes/macrophages (TIB 202) primed or primed and restimulated with onco-BCG or Hp, were used for assessment of phagocytosis towards E. coli or Hp, surface (immunostaining) or soluble activity determinants, and global DNA methylation (ELISA). THP-1 monocytes/macrophages primed/restimulated with BCG showed increased phagocytosis capacity towards E. coli fluorescent particles, elevated expression of CD11b, CD11d, CD18, CD14, sCD14, increased MCP-1 secretion and DNA methylation. Preliminary results indicate that BCG mycobacteria may also induce the phagocytosis of H. pylori by THP-1 monocytes. Priming or priming and restimulation of monocytes/macrophages with BCG resulted in an increased activity of these cells, which was negatively modulated by Hp.
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Lepcha TT, Kumar M, Sharma AK, Mal S, Majumder D, Jana K, Basu J, Kundu M. Uncovering the role of microRNA671-5p/CDCA7L/monoamine oxidase-A signaling in Helicobacter pylori mediated apoptosis in gastric epithelial cells. Pathog Dis 2023; 81:7143101. [PMID: 37140023 DOI: 10.1093/femspd/ftad006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/27/2023] [Accepted: 04/24/2023] [Indexed: 05/05/2023] Open
Abstract
Helicobacter pylori is a gram-negative microaerophilic bacterium and is associated with gastrointestinal diseases ranging from peptic ulcer and gastritis to gastric cancer and mucosa-associated lymphoid tissue lymphoma. In our laboratory, the transcriptomes and miRnomes of AGS cells infected with H. pylori have been profiled, and an miRNA-mRNA network has been constructed. MicroRNA 671-5p is upregulated during H. pylori infection of AGS cells or of mice. In this study, the role of miR-671-5p during infection has been investigated. It has been validated that miR-671-5p targets the transcriptional repressor CDCA7L, which is downregulated during infection (in vitro and in vivo) concomitant with miR-671-5p upregulation. Further, it has been established that the expression of monoamine oxidase A (MAO-A) is repressed by CDCA7L, and that MAO-A triggers the generation of reactive oxygen species (ROS). Consequently, miR-671-5p/CDCA7L signaling is linked to the generation of ROS during H. pylori infection. Finally, it has been demonstrated that ROS-mediated caspase 3 activation and apoptosis that occurs during H. pylori infection, is dependent on the miR-671-5p/CDCA7L/MAO-A axis. Based on the above reports, it is suggested that targeting miR-671-5p could offer a means of regulating the course and consequences of H. pylori infection.
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Affiliation(s)
- Thurbu Tshering Lepcha
- Department of Chemistry, Bose Institute, 93/1 Acharya Prafulla Chandra Road Kolkata 700009, India
| | - Manish Kumar
- Department of Chemistry, Bose Institute, 93/1 Acharya Prafulla Chandra Road Kolkata 700009, India
| | - Arun Kumar Sharma
- Department of Chemistry, Bose Institute, 93/1 Acharya Prafulla Chandra Road Kolkata 700009, India
| | - Soumya Mal
- Department of Chemistry, Bose Institute, 93/1 Acharya Prafulla Chandra Road Kolkata 700009, India
| | - Debayan Majumder
- Department of Chemistry, Bose Institute, 93/1 Acharya Prafulla Chandra Road Kolkata 700009, India
| | - Kuladip Jana
- Division of Molecular Medicine, Bose Institute, EN80 Sector V, Salt Lake City, Kolkata 700091, India
| | - Joyoti Basu
- Department of Chemistry, Bose Institute, 93/1 Acharya Prafulla Chandra Road Kolkata 700009, India
| | - Manikuntala Kundu
- Department of Chemistry, Bose Institute, 93/1 Acharya Prafulla Chandra Road Kolkata 700009, India
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22
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Somiah T, Gebremariam HG, Zuo F, Smirnova K, Jonsson AB. Lactate causes downregulation of Helicobacter pylori adhesin genes sabA and labA while dampening the production of proinflammatory cytokines. Sci Rep 2022; 12:20064. [PMID: 36414643 PMCID: PMC9681763 DOI: 10.1038/s41598-022-24311-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 11/14/2022] [Indexed: 11/24/2022] Open
Abstract
Chronic inflammation induced by Helicobacter pylori is strongly associated with gastric cancer development, which is influenced by both bacterial virulence and host genetics. The sialic acid-binding adhesin SabA and the MUC5AC-binding adhesin LabA are important H. pylori virulence factors that facilitate adhesion of the bacterium, which is a crucial step in colonization. Lactate utilization has been reported to play a key role in the pathogenicity of different bacterial species. However, this is poorly understood in H. pylori. In this study, we investigated the effect of lactate on H. pylori adhesin gene expression and the regulation of host inflammatory cytokines. We show that the bacterial adhesins SabA and LabA were downregulated at the transcriptional level during incubation of H. pylori with lactate. Downregulation of sabA required the involvement of the two-component system ArsRS, while labA was regulated via the CheA/CheY system, indicating differences in the regulation of these genes in response to lactate. The levels of the proinflammatory cytokines TNF and IL-6 in H. pylori-stimulated macrophages were reduced when lactate was present. Interestingly, glucose did not prevent the secretion of these cytokines. Taken together, our data suggest that lactate affects H. pylori adhesin gene expression and the host response upon infection.
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Affiliation(s)
- Tanvi Somiah
- grid.10548.380000 0004 1936 9377Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Svante Arrheniusväg 20C, 10691 Stockholm, Sweden
| | - Hanna G. Gebremariam
- grid.10548.380000 0004 1936 9377Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Svante Arrheniusväg 20C, 10691 Stockholm, Sweden
| | - Fanglei Zuo
- grid.10548.380000 0004 1936 9377Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Svante Arrheniusväg 20C, 10691 Stockholm, Sweden
| | - Ksenija Smirnova
- grid.10548.380000 0004 1936 9377Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Svante Arrheniusväg 20C, 10691 Stockholm, Sweden
| | - Ann-Beth Jonsson
- grid.10548.380000 0004 1936 9377Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Svante Arrheniusväg 20C, 10691 Stockholm, Sweden
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23
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Gonciarz W, Lechowicz Ł, Urbaniak M, Rechciński T, Chałubiński M, Broncel M, Kaca W, Chmiela M. Searching for serum biomarkers linking coronary heart disease and Helicobacter pylori infection using infrared spectroscopy and artificial neural networks. Sci Rep 2022; 12:18284. [PMID: 36316430 PMCID: PMC9622908 DOI: 10.1038/s41598-022-23191-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 10/26/2022] [Indexed: 11/07/2022] Open
Abstract
Helicobacter pylori (Hp) Gram-negative bacteria cause gastritis or gastric ulcers. They may be involved in the development of systemic diseases i.e. coronary heart disease (CHD). Both Hp infection and CHD are related to inflammation accompanied by C-reactive protein (CRP), tumor necrosis factor alfa (TNF-α) and homocysteine. Low density lipoprotein (LDL) and triglicerides are a classic risk factors of CHD. Infrared spectroscopy has been introduced for monitoring chronic infections or endogenous disorders using specific absorption bands for biocomponents typed as diagnostic markers. In this study we selected specific motives of infrared radiation (IR) spectra for the sera from CHD patients infected with Hp. In total 141 sera were used: 90 from patients with CHD, all Hp positive, and 51 from healthy donors, 32 Hp negative and 21 Hp positive. Hp status was evaluated by anti-Hp IgG antibodies and/or 13C urea breath testing. IR spectra were measured using FT-IR/FT-NIR Spectrum 400 spectrometer (PerkinElmer) chemometrically analyzed using artificial neural networks and they showed differences in absorption bands corresponding to triglicerides, CRP, homocysteine, LDL and TNF-α, and selected component groups between CHD patients infected with Hp vs healthy uninfected donors (96.15% accuracy). Triglicerides and CRP were the best biomarkers linking Hp infection with CHD.
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Affiliation(s)
- Weronika Gonciarz
- grid.10789.370000 0000 9730 2769Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland ,grid.411821.f0000 0001 2292 9126Department of Synthesis and Structural Research, Faculty of Natural Sciences, Jan Kochanowski University, Świętokrzyska 11, 25-406 Kielce, Poland
| | - Łukasz Lechowicz
- grid.411821.f0000 0001 2292 9126Departament of Microbiology, Faculty of Natural Sciences, Jan Kochanowski University, Świętokrzyska 11, 25-406 Kielce, Poland
| | - Mariusz Urbaniak
- grid.411821.f0000 0001 2292 9126Department of Synthesis and Structural Research, Faculty of Natural Sciences, Jan Kochanowski University, Świętokrzyska 11, 25-406 Kielce, Poland
| | - Tomasz Rechciński
- grid.8267.b0000 0001 2165 3025Clinic and Department of Cardiology, Medical University of Lodz, 92-213 Lodz, Poland
| | - Maciej Chałubiński
- grid.8267.b0000 0001 2165 3025Department of Immunology and Allergy, Medical University of Lodz, Pomorska 251, 91-347 Lodz, Poland
| | - Marlena Broncel
- grid.8267.b0000 0001 2165 3025Laboratory of Tissue Immunopharmacology, Department of Internal Diseases and Clinical Pharmacology, Medical University of Lodz, Kniaziewicza 1/5, 91-347 Lodz, Poland
| | - Wiesław Kaca
- grid.411821.f0000 0001 2292 9126Departament of Microbiology, Faculty of Natural Sciences, Jan Kochanowski University, Świętokrzyska 11, 25-406 Kielce, Poland
| | - Magdalena Chmiela
- grid.10789.370000 0000 9730 2769Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
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24
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Thanaphongdecha P, Chamgramol Y, Pairojkul C, Deenonpoe R, Suttiprapa S, Brindley PJ, Sripa B. Adherence of Helicobacter pylori to Opisthorchis viverrini gut epithelium and the tegument mediated via L-fucose binding adhesin. Parasitology 2022; 149:1374-1379. [PMID: 35485645 PMCID: PMC11010504 DOI: 10.1017/s0031182022000592] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/20/2022] [Accepted: 04/21/2022] [Indexed: 01/21/2023]
Abstract
Recent reports implicate both the liver fluke Opisthorchis viverrini as a reservoir of Helicobacter pylori within the human gastrointestinal tract and H. pylori in the pathogenesis of opisthorchiasis-associated cholangiocarcinoma. We postulated that adherence of bacterial ligands to host receptors initiates colonization of the live fluke by H. pylori and here we aimed to assess the molecular interaction between O. viverrini and H. pylori by investigating host receptors for H. pylori in the fluke. Several known receptors of H. pylori including Lewis B, sialyl-Lewis X, Toll-like receptor 4 and L-fucose were detected immunohistochemically and histochemically by focusing analysis on the gut epithelium and tegument of the adult stage of the fluke. The frequency of detection of Lewis B, sialyl-Lewis X, TLR4 and L-fucose in 100 individual worms was 3, 3, 19 and 70%, respectively. Detection of H. pylori by a diagnostic ureA gene-based PCR assay revealed the presence of H. pylori in individual O. viverrini worms in 41 of 49 (79%) worms examined. In addition, numbers of bacteria decreased in a dose- and time-dependent fashion following exposure to fucosidase. These findings suggested that L-fucose represents a tractable receptor for H. pylori that can mediate bacterial colonization of the gut of O. viverrini.
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Affiliation(s)
- Prissadee Thanaphongdecha
- Tropical Disease Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Yaovalux Chamgramol
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Chawalit Pairojkul
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Raksawan Deenonpoe
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Sutas Suttiprapa
- Tropical Disease Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Paul J. Brindley
- Department of Microbiology, Immunology and Tropical Medicine, and Research Center for Neglected Tropical Diseases of Poverty, School of Medicine & Health Sciences, The George Washington University, Washington DC 20037, USA
| | - Banchob Sripa
- Tropical Disease Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
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25
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Casado J, Lanas Á, González A. Two-component regulatory systems in Helicobacter pylori and Campylobacter jejuni: Attractive targets for novel antibacterial drugs. Front Cell Infect Microbiol 2022; 12:977944. [PMID: 36093179 PMCID: PMC9449129 DOI: 10.3389/fcimb.2022.977944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Two-component regulatory systems (TCRS) are ubiquitous signal transduction mechanisms evolved by bacteria for sensing and adapting to the constant changes that occur in their environment. Typically consisting of two types of proteins, a membrane sensor kinase and an effector cytosolic response regulator, the TCRS modulate via transcriptional regulation a plethora of key physiological processes, thereby becoming essential for bacterial viability and/or pathogenicity and making them attractive targets for novel antibacterial drugs. Some members of the phylum Campylobacterota (formerly Epsilonproteobacteria), including Helicobacter pylori and Campylobacter jejuni, have been classified by WHO as “high priority pathogens” for research and development of new antimicrobials due to the rapid emergence and dissemination of resistance mechanisms against first-line antibiotics and the alarming increase of multidrug-resistant strains worldwide. Notably, these clinically relevant pathogens express a variety of TCRS and orphan response regulators, sometimes unique among its phylum, that control transcription, translation, energy metabolism and redox homeostasis, as well as the expression of relevant enzymes and virulence factors. In the present mini-review, we describe the signalling mechanisms and functional diversity of TCRS in H. pylori and C. jejuni, and provide an overview of the most recent findings in the use of these microbial molecules as potential novel therapeutic targets for the development of new antibiotics.
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Affiliation(s)
- Javier Casado
- Group of Translational Research in Digestive Diseases, Institute for Health Research Aragón (IIS Aragón), Zaragoza, Spain
- Department of Biochemistry and Molecular & Cellular Biology, University of Zaragoza, Zaragoza, Spain
| | - Ángel Lanas
- Group of Translational Research in Digestive Diseases, Institute for Health Research Aragón (IIS Aragón), Zaragoza, Spain
- Department of Medicine, Psychiatry and Dermatology, University of Zaragoza, Zaragoza, Spain
- Biomedical Research Networking Center in Hepatic and Digestive Diseases (CIBERehd), Madrid, Spain
- Digestive Diseases Service, University Clinic Hospital Lozano Blesa, Zaragoza, Spain
| | - Andrés González
- Group of Translational Research in Digestive Diseases, Institute for Health Research Aragón (IIS Aragón), Zaragoza, Spain
- Department of Medicine, Psychiatry and Dermatology, University of Zaragoza, Zaragoza, Spain
- Biomedical Research Networking Center in Hepatic and Digestive Diseases (CIBERehd), Madrid, Spain
- *Correspondence: Andrés González,
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26
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Arteaga-Resendiz NK, Rodea GE, Ribas-Aparicio RM, Olivares-Cervantes AL, Castelán-Vega JA, Olivares-Trejo JDJ, Mendoza-Elizalde S, López-Villegas EO, Colín C, Aguilar-Rodea P, Reyes-López A, Salazar García M, Velázquez-Guadarrama N. HP0953 - hypothetical virulence factor overexpresion and localization during Helicobacter pylori infection of gastric epithelium. World J Gastroenterol 2022; 28:3886-3902. [PMID: 36157534 PMCID: PMC9367236 DOI: 10.3748/wjg.v28.i29.3886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 04/26/2022] [Accepted: 07/11/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The high prevalence and persistence of Helicobacter pylori (H. pylori) infection, as well as the diversity of pathologies related to it, suggest that the virulence factors used by this microorganism are varied. Moreover, as its proteome contains 340 hypothetical proteins, it is important to investigate them to completely understand the mechanisms of its virulence and survival. We have previously reported that the hypothetical protein HP0953 is overexpressed during the first hours of adhesion to inert surfaces, under stress conditions, suggesting its role in the environmental survival of this bacterium and perhaps as a virulence factor.
AIM To investigate the expression and localization of HP0953 during adhesion to an inert surface and against gastric (AGS) cells.
METHODS Expression analysis was performed for HP0953 during H. pylori adhesion. HP0953 expression at 0, 3, 12, 24, and 48 h was evaluated and compared using the Kruskal-Wallis equality-of-populations rank test. Recombinant protein was produced and used to obtain polyclonal antibodies for immunolocalization. Immunogold technique was performed on bacterial sections during adherence to inert surfaces and AGS cells, which was analyzed by transmission electron microscopy. HP0953 protein sequence was analyzed to predict the presence of a signal peptide and transmembrane helices, both provided by the ExPASy platform, and using the GLYCOPP platform for glycosylation sites. Different programs, via, I-TASSER, RaptorX, and HHalign-Kbest, were used to perform three-dimensional modeling.
RESULTS HP0953 exhibited its maximum expression at 12 h of infection in gastric epithelium cells. Immunogold technique revealed HP0953 localization in the cytoplasm and accumulation in some peripheral areas of the bacterial body, with greater expression when it is close to AGS cells. Bioinformatics analysis revealed the presence of a signal peptide that interacts with the transmembrane region and then allows the release of the protein to the external environment. The programs also showed a similarity with the Tip-alpha protein of H. pylori. Tip-alpha is an exotoxin that penetrates cells and induces tumor necrosis factor alpha production, and HP0953 could have a similar function as posttranslational modification sites were found; modifications in turn require enzymes located in eukaryotic cells. Thus, to be functional, HP0953 may necessarily need to be translocated inside the cell where it can trigger different mechanisms producing cellular damage.
CONCLUSION The location of HP0953 around infected cells, the probable posttranslational modifications, and its similarity to an exotoxin suggest that this protein is a virulence factor.
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Affiliation(s)
- Nancy K Arteaga-Resendiz
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
- Posgrado en Biomedicina y Biotecnología Molecular, Laboratorio de Producción y Control de Biológicos, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Gerardo E Rodea
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Rosa María Ribas-Aparicio
- Posgrado en Biomedicina y Biotecnología Molecular, Laboratorio de Producción y Control de Biológicos, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Alma L Olivares-Cervantes
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Juan Arturo Castelán-Vega
- Posgrado en Biomedicina y Biotecnología Molecular, Laboratorio de Producción y Control de Biológicos, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - José de Jesús Olivares-Trejo
- Laboratorio de Adquisición de Hierro, Universidad Autónoma de la Ciudad México, Posgrado Ciencias Genómica, Mexico City 03100, Mexico
| | - Sandra Mendoza-Elizalde
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Edgar O López-Villegas
- Laboratorio Central de Microscopía, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Christian Colín
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Pamela Aguilar-Rodea
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Alfonso Reyes-López
- Centro de estudios económicos y sociales en salud, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Marcela Salazar García
- Laboratorio de Investigación en Biología del Desarrollo y Teratogénesis Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Norma Velázquez-Guadarrama
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
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27
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Gonciarz W, Tomaszewska A, Krupa A, Rechciński T, Chałubiński M, Broncel M, Chmiela M. Antibodies towards TVLLPVIFF Amino Acid Sequence of TNF Receptor Induced by Helicobacter pylori in Patients with Coronary Heart Disease. J Clin Med 2022; 11:2545. [PMID: 35566671 PMCID: PMC9103578 DOI: 10.3390/jcm11092545] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/14/2022] [Accepted: 04/29/2022] [Indexed: 02/07/2023] Open
Abstract
Background: Molecular mimicry between Helicobacter pylori (Hp) and the host components resulting in induction of cross-reacting antibodies has been suggested as accessory mechanism in the development of coronary heart disease (CHD). A potential target for antibodies induced during Hp infection by the components of these bacteria might be amino acid sequence TVLLPVIFF (P1) of tumor necrosis factor receptor (TNFR), which is exposed on vascular endothelium and immunocompetent cells, driving inflammation. Aim: To examine whether anti-P1 IgG are induced during Hp infection in CHD patients. Methods: Sera from CHD patients infected with Hp (54) vs. sera of uninfected healthy donors (22) were tested by the ELISA for anti-H. pylori antibodies, anti-P1 IgG, and for antibodies towards control sequence IAKEGFEKIS (P2). Sera of Caviae porcellus infected experimentally with Hp (30) or uninfected (10) were included into this study. The same serum samples, which were positive for anti-P1 IgG, were adsorbed with Hp and then subjected to the ELISA. The biological activity of anti-P1 IgG was assessed in complement (C1q) binding assay. Results: Sera of 43 CHD patients seropositive for anti-Hp IgG contained anti-P1 IgG binding C1q. Additionally, 10 serum samples of animals seropositive for anti-Hp IgG contained anti-P1 IgG. Anti-P1 IgG in tested sera were neutralized by their adsorption with Hp. Conclusion: In CHD patients infected with Hp, antibodies cross-reacting with TNFR common sequence are produced. Further studies are necessary to define immunogenic Hp determinants and to confirm possible cellular effects of cross-reacting antibodies.
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28
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Deng G, Wu Y, Song Z, Li S, Du M, Deng J, Xu Q, Deng L, Bahlol HS, Han H. Tea Polyphenol Liposomes Overcome Gastric Mucus to Treat Helicobacter Pylori Infection and Enhance the Intestinal Microenvironment. ACS Appl Mater Interfaces 2022; 14:13001-13012. [PMID: 35266695 DOI: 10.1021/acsami.1c23342] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Infection with Helicobacter pylori (Hp) is one of the leading causes of stomach cancer. The ability to treat Hp infection is hampered by a lack of stomach gastric acid environment. This work introduces a nanoliposome that can rapidly adjust the gastric acid environment to ensure a drug's optimal efficacy. We introduce CaCO3@Fe-TP@EggPC nanoliposomes (CTE NLs) that are composed of Fe3+ and tea polyphenols (TPs) forming complexes on the surface of internal CaCO3 and then with lecithin producing a phospholipid bilayer on the polyphenols' outer surface. Through the action of iron-TP chelate, the phospholipid layer can fuse with the bacterial membrane to eliminate Hp. Furthermore, CaCO3 can promptly consume the excessive gastric acid, ensuring an ideal operating environment for the chelate. TPs, on the other hand, can improve the inflammation and gut microbes in the body. The experimental results show that CTE NLs can quickly consume protons in the stomach and reduce the bacterial burden by 1.2 orders of magnitude while reducing the inflammatory factors in the body. The biosafety evaluation revealed that nanoliposomes have good biocompatibility and provide a new strategy for treating Hp infection.
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Affiliation(s)
- Guiyun Deng
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
| | - Yang Wu
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
| | - Zhiyong Song
- State Key Laboratory of Agriculture Microbiology, College of Science Huazhong Agricultural University, Wuhan 430070, China
| | - Shuojun Li
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
| | - Moqing Du
- State Key Laboratory of Agriculture Microbiology, College of Science Huazhong Agricultural University, Wuhan 430070, China
| | - Jiamin Deng
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
| | - Quan Xu
- State Key Laboratory of Agriculture Microbiology, College of Science Huazhong Agricultural University, Wuhan 430070, China
| | - Liu Deng
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
| | - Hagar Shendy Bahlol
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
- Department of Biochemistry, Faculty of Agriculture, Benha University, Moshtohor, Toukh 13736, Egypt
| | - Heyou Han
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology Huazhong Agricultural University, Wuhan 430070, China
- State Key Laboratory of Agriculture Microbiology, College of Science Huazhong Agricultural University, Wuhan 430070, China
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29
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Abdelmalek S, Hamed W, Nagy N, Shokry K, Abdelrahman H. Evaluation of the diagnostic performance and the utility of Helicobacter pylori stool antigen lateral immunochromatography assay. Heliyon 2022; 8:e09189. [PMID: 35368526 PMCID: PMC8969150 DOI: 10.1016/j.heliyon.2022.e09189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/05/2022] [Accepted: 03/21/2022] [Indexed: 11/02/2022] Open
Abstract
Background Helicobacter pylori causes the most common human gastric infection. H. pylori Stool Antigen Lateral Flow Immunochromatography assay (HpSA-LFIA) is considered one of the most cost-effective and rapid non-invasive assays (active tests). Evaluating HpSA-LFIA is of crucial for ensuring accuracy and utility assurance. This study aimed to evaluate the polyclonal antibody-based HpSA-LFIA in comparison to a monoclonal antibody-based ELISA kit. Methodology Stool samples were collected from 200 gastric patients for HpSA-LFIA and semiquantitative HpSA-ELISA tests. A statistical analysis of the diagnostic performance was performed using MedCalc software. Chi-square tests were performed to determine the effects of gender and age. Results and conclusion The results showed that HpSA-LFIA achieved remarkable sensitivity (93.75%) and NPV (98.00%). However, it had poor specificity, PPV, and accuracy of 59.76%, 31.25%, and 65.31%, respectively. LR+ and LR-were 2.33% & 0.1%, respectively. Gender didn't affect the diagnostic performance of HpSA-LFIA. Age groups had irrelevant sensitivity; however, specificity was significantly higher in patients aged >45 years. We can conclude that HpSA-LFIA was not accurate enough to be the sole test for diagnosis and suggest developing other confirmatory tests in case of positive conditions.
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Affiliation(s)
- Shaymaa Abdelmalek
- Microbiology, Immunology Department, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Wafy Hamed
- Microbiology Department, Faculty of Veterinary Medicine, Sadat City University, Sadat City, Egypt
| | - Neven Nagy
- Microbiology, Immunology Department, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Karim Shokry
- Microbiology, Immunology Department, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Hisham Abdelrahman
- Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Cairo University, Egypt
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Jin F, Yang H. Transcriptome Analysis of the Response of Mature Helicobacter pylori Biofilm to Different Doses of Lactobacillus salivarius LN12 with Amoxicillin and Clarithromycin. Antibiotics (Basel) 2022; 11:262. [PMID: 35203863 PMCID: PMC8868532 DOI: 10.3390/antibiotics11020262] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/13/2022] [Accepted: 02/15/2022] [Indexed: 02/04/2023] Open
Abstract
Helicobacter pylori is a gastrointestinal pathogen with a high infection rate. Probiotics are clinically used as an adjuvant to improve the cure rate and reduce the side effects of antibiotic treatment for H. pylori. This study is the first to explore the effects of a cell-free supernatant of high- or low-dose Lactobacillus salivarius LN12 combined with amoxicillin (AMX) and clarithromycin (CLR) on H. pylori 3192 biofilms in terms of the biofilm biomass, survival rates, biofilm structure, and transcriptome. The results showed that the combination of the CFS of high-dose LN12 with AMX and CLR had stronger effects on the biofilm biomass, survival rate, and structure of H. pylori 3192 biofilms. H. pylori 3192 biofilms may increase the expression of NADH-related genes and downregulate flagellar assembly and quorum sensing-related receptor genes to deal with the stronger stress effects of high-dose LN12 with AMX and CLR. In conclusion, the biofilm biomass, survival rate, structure, and transcriptome results showed that the combination of LN12 CFS with AMX and CLR had dose effects. We recommend that compared with low doses, high doses of L. salivarus LN12 combined with AMX and CLR may be more effective for H. pylori biofilm than low doses.
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Kohoutova D, Banks M, Bures J. Advances in the Aetiology & Endoscopic Detection and Management of Early Gastric Cancer. Cancers (Basel) 2021; 13:6242. [PMID: 34944861 DOI: 10.3390/cancers13246242] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/06/2021] [Accepted: 12/10/2021] [Indexed: 12/24/2022] Open
Abstract
Simple Summary Gastric adenocarcinoma has remained a highly lethal disease. Awareness and recognition of preneoplastic conditions (including gastric atrophy and intestinal metaplasia) using high-resolution white-light endoscopy as well as chromoendoscopy is therefore essential. Helicobacter pylori, a class I carcinogen, remains the main contributor to the development of sporadic distal gastric neoplasia. Management of early gastric neoplasia with endoscopic resections should be in line with standard indications. A multidisciplinary approach to any case of an early gastric neoplasia is imperative. Hereditary forms of gastric cancer require a tailored approach and individua-lized surveillance. Abstract The mortality rates of gastric carcinoma remain high, despite the progress in research and development in disease mechanisms and treatment. Therefore, recognition of gastric precancerous lesions and early neoplasia is crucial. Two subtypes of sporadic gastric cancer have been recognized: cardia subtype and non-cardia (distal) subtype, the latter being more frequent and largely associated with infection of Helicobacter pylori, a class I carcinogen. Helicobacter pylori initiates the widely accepted Correa cascade, describing a stepwise progression through precursor lesions from chronic inflammation to gastric atrophy, gastric intestinal metaplasia and neoplasia. Our knowledge on He-licobacter pylori is still limited, and multiple questions in the context of its contribution to the pathogenesis of gastric neoplasia are yet to be answered. Awareness and recognition of gastric atrophy and intestinal metaplasia on high-definition white-light endoscopy, image-enhanced endoscopy and magnification endoscopy, in combination with histology from the biopsies taken accurately according to the protocol, are crucial to guiding the management. Standard indications for endoscopic resections (endoscopic mucosal resection and endoscopic submucosal dissection) of gastric dysplasia and intestinal type of gastric carcinoma have been recommended by multiple societies. Endoscopic evaluation and surveillance should be offered to individuals with an inherited predisposition to gastric carcinoma.
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Zheng L, Wu Y, Shen L, Liang X, Yang Z, Li S, Li T, Shang W, Shao W, Wang Y, Liu F, Ma L, Jia J. Mechanisms of JARID1B Up-Regulation and Its Role in Helicobacter pylori-Induced Gastric Carcinogenesis. Front Oncol 2021; 11:757497. [PMID: 34778074 PMCID: PMC8581301 DOI: 10.3389/fonc.2021.757497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/07/2021] [Indexed: 11/13/2022] Open
Abstract
Gastric cancer (GC) is the third leading cause of cancer-related death worldwide. Helicobacter pylori infection can induce GC through a serial cascade of events, with emerging evidence suggesting the important role of epigenetic alterations in the development and progression of the disease. Here, we report on mechanisms responsible for Jumonji AT-rich interactive domain1B (JARID1B) upregulation in GC and its role in the malignant transformation induced by H. pylori infection. We found that upregulation of JARID1B was associated with poorer prognosis, greater tumor purity, and less immune cell infiltration into the tumor. Mechanistically, we showed that the upregulation of JARID1B in human GC was attributed to JARID1B amplification and its induction by H. pylori infection. Furthermore, we identified miR-29c as a negative regulator of JARID1B in GC. H. pylori caused downregulation of miR-29c in human GC and thereby contributed to JARID1B upregulation through relieving posttranscriptional regulation. Functionally, we showed that knockdown of JARID1B reduced GC cell proliferation induced by H. pylori infection. Subsequently, cyclinD1 (CCND1), a key molecule in GC, was shown to be a target gene of JARID1B. In conclusion, these results suggest that JARID1B may be an oncogene upregulated in human GC and could represent a novel therapeutic target to prevent malignant transformation induced by H. pylori infection.
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Affiliation(s)
- Lixin Zheng
- Key Laboratory of Experimental Teratology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Yujiao Wu
- Key Laboratory of Experimental Teratology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Li Shen
- Key Laboratory of Experimental Teratology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Xiuming Liang
- Key Laboratory of Experimental Teratology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Zongcheng Yang
- Key Laboratory of Experimental Teratology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Shuyan Li
- Key Laboratory of Experimental Teratology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Tongyu Li
- Key Laboratory of Experimental Teratology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Wenjing Shang
- Key Laboratory of Experimental Teratology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Wei Shao
- Key Laboratory of Experimental Teratology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Yue Wang
- Key Laboratory of Experimental Teratology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Fen Liu
- Key Laboratory of Experimental Teratology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Lin Ma
- Key Laboratory of Experimental Teratology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Jihui Jia
- Key Laboratory of Experimental Teratology, School of Basic Medical Sciences, Shandong University, Jinan, China.,Shandong Provincial Key Laboratory of Infection and Immunology, School of Basic Medical Sciences, Shandong University, Jinan, China
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Selwal KK, Selwal MK, Yu Z. Mucolytic bacteria: prevalence in various pathological diseases. World J Microbiol Biotechnol 2021; 37:176. [PMID: 34519941 DOI: 10.1007/s11274-021-03145-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/07/2021] [Indexed: 02/07/2023]
Abstract
All mucins are highly glycosylated and a key constituent of the mucus layer that is vigilant against pathogens in many organ systems of animals and humans. The viscous layer is organized in bilayers, i.e., an outer layer that is loosely arranged, variable in thickness, home to the commensal microbiota that grows in the complex environment, and an innermost layer that is stratified, non-aspirated, firmly adherent to the epithelial cells and devoid of any microorganisms. The O-glycosylation moiety represents the site of adhesion for pathogens and due to the increase of motility, mucolytic activity, and upregulation of virulence factors, some microorganisms can circumvent the component of the mucus layer and cause disruption in organ homeostasis. A dysbiotic microbiome, defective mucus barrier, and altered immune response often result in various diseases. In this review, paramount emphasis is given to the role played by the bacterial species directly or indirectly involved in mucin degradation, alteration in mucus secretion or its composition or mucin gene expression, which instigates many diseases in the digestive, respiratory, and other organ systems. A systematic view can help better understand the etiology of some complex disorders such as cystic fibrosis, ulcerative colitis and expand our knowledge about mucin degraders to develop new therapeutic approaches to correct ill effects caused by these mucin-dwelling pathogens.
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Suyapoh W, Tirnitz-Parker JEE, Tangkawattana S, Suttiprapa S, Sripa B. Biliary Migration, Colonization, and Pathogenesis of O. viverrini Co-Infected with CagA+ Helicobacter pylori. Pathogens 2021; 10:pathogens10091089. [PMID: 34578122 PMCID: PMC8469007 DOI: 10.3390/pathogens10091089] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 08/04/2021] [Accepted: 08/23/2021] [Indexed: 12/21/2022] Open
Abstract
Co-infection with the cagA strain of Helicobacter pylori exacerbates the pathology of human liver fluke Opisthorchis viverrini (OV) infection leading to cholangiocarcinoma. However, underlying mechanisms remain unclear. We report a significant increase in cagA-positive and cagA-negative H. pylori in the stomach, blood, bile, and in the OV worms of co-infected Syrian golden hamsters at one hour, three hours, and one month, post-infection, compared to hamsters infected with either OV or H. pylori alone. Except in the worms, H. pylori numbers declined at three months post-infection, particularly in the bile fluid of co-infected animals. Both strains of H. pylori were immunohistochemically detected in the tegument of the worm, as well as in the bile duct epithelium when co-infected with O. viverrine, but not in H. pylori infection alone. Interestingly, only the cagA-positive strain was detected in the gut of the worm. Co-infection between cagA-positive H. pylori and O. viverrini resulted in a more severe biliary pathology and decreased E-cadherin expression in vivo and in vitro than those of the cagA-negative strain. These data suggest that O. viverrini acts as a carrier of cagA-positive H. pylori and co-migrates to the bile ducts, whereas O. viverrini facilitates H. pylori colonization and enhances the biliary pathogenesis and carcinogenesis.
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Affiliation(s)
- Watcharapol Suyapoh
- Biomedical Sciences Program, Graduate School, Khon Kaen University, Khon Kaen 40002, Thailand;
- WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (S.T.); (S.S.)
| | - Janina E. E. Tirnitz-Parker
- Liver Disease and Regeneration Group, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Perth 6102, Australia;
| | - Sirikachorn Tangkawattana
- WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (S.T.); (S.S.)
- Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Sutas Suttiprapa
- WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (S.T.); (S.S.)
- Tropical Medicine Graduate Program, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Banchob Sripa
- WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (S.T.); (S.S.)
- Tropical Disease Research Center, Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
- Correspondence: ; Tel.: +66-62-6080860; Fax: +66-43-363319
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Tran TT, Gunathilake M, Lee J, Choi IJ, Kim YI, Kim J. The Associations of Dietary Iron Intake and the Transferrin Receptor ( TFRC) rs9846149 Polymorphism with the Risk of Gastric Cancer: A Case-Control Study Conducted in Korea. Nutrients 2021; 13:2600. [PMID: 34444760 DOI: 10.3390/nu13082600] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/21/2021] [Accepted: 07/26/2021] [Indexed: 12/20/2022] Open
Abstract
Background: A positive association between a high iron intake and colorectal cancer has been identified; however, the effect of dietary iron on gastric cancer (GC) remains unclear. Here, we investigate whether dietary iron is related to GC risk and whether the transferrin receptor (TFRC) rs9846149 polymorphism modifies this association. Methods: A case–control study was designed to assess this association among 374 GC patients and 754 healthy controls. A self-administered questionnaire was used to collect information on demographics, medical history and lifestyle. Dietary iron intake was assessed using a semi-quantitative food frequency questionnaire. TFRC rs9846149 was genetically analyzed using the Affymetrix Axiom Exom 319 Array platform. Results: A higher total dietary iron was significantly associated with decreased GC risk [OR = 0.65 (0.45–0.94), p for trend = 0.018]. A similar association was observed with nonheme iron [OR = 0.64 (0.44–0.92), p for trend = 0.018]. Individuals with a major allele of TFRC rs9846149 (CC/GC) and higher intake of total iron had a significantly lower GC risk than those with a lower intake [OR = 0.60 (0.41–0.88), p interaction = 0.035]. Conclusion: Our findings show the protective effects of total dietary iron, especially nonheme iron, against GC risk, and this association can be modified by TFRC rs9846149.
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Jalalpour S, Mirzaee V, Taheri M, Sheikh Fathollahi M, Khorramdelazad H, Jafarzadeh A. Ginger Extract Modulates the Production of Chemokines CCL17, CCL20, CCL22, and CXCL10 and the Gene Expression of Their Receptors in Peripheral Blood Mononuclear Cells from Peptic Ulcer Patients Infected with Helicobacter pylori. Jundishapur J Nat Pharm Prod 2021; 16. [DOI: 10.5812/jjnpp.100824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: The imbalanced expression of chemokines plays critical role in the development of Helicobacter pylori-mediated complications. Objectives: Our aim was to determine ginger extract (GE) effects on the expression of chemokines CCL17, CCL20, CCL22, and CXCL10, as well as CCR4, CCR6, and CXCR3 receptors by peripheral blood mononuclear cells (PBMCs) from H. pylori -infected patients with peptic ulcer (PU). Methods: Peripheral blood mononuclear cells were obtained from 20 patients with H. pylori-associated PU, 20 H. pylori-infected asymptomatic subjects (HAS), and 20 non-infected healthy subjects (NHS). The PBMCs were stimulated by 10 µg/mL of H. pylori-derived crude extract (HPCE) in the presence of 0, 10, 20, and 30 µg/mL of GE. After 36 hours, the supernatant and the RNA extracted from the cells were tested for chemokine concentration and chemokine receptor expression using ELISA and real-time PCR techniques, respectively. Results: In PU patients, treating HPCE-stimulated PBMCs with 10, 20, or 30 µg/mL GE reduced the production of CXCL10 (1.47, 1.5, and 1.53 folds, respectively, P < 0.001 for all), CCL20 (1.44, 1.62, and 1.65 folds, respectively, P < 0.003), and treatment with 30 µg/mL GE increased CCL17 (1.28-fold, P < 0.001) and CCL22 (1.59-fold, P < 0.001) production compared with untreated HPCE-stimulated PBMCs. In PU patients, the HPCE-stimulated PBMCs treated with 10, 20, or 30 µg/mL GE expressed lower levels of CXCR3 (1.9, 3, and 3.5 folds, respectively, P < 0.001) and CCR6 (2.3, 2.7, and 2.8 folds, respectively, P < 0.002) while treating with 10 µg/mL GE upregulated CCR4 (1.7 fold, P = 0.003) compared with untreated HPCE-stimulated PBMCs. Conclusions: Ginger extract modulated the expression of chemokines and their receptors in the PBMCs derived from H. pylori-infected PU patients. The therapeutic potentials of ginger for treating HP-related complications need to be further explored.
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Silvan JM, Gutierrez-Docio A, Guerrero-Hurtado E, Domingo-Serrano L, Blanco-Suarez A, Prodanov M, Alarcon-Cavero T, Martinez-Rodriguez AJ. Pre-Treatment with Grape Seed Extract Reduces Inflammatory Response and Oxidative Stress Induced by Helicobacter pylori Infection in Human Gastric Epithelial Cells. Antioxidants (Basel) 2021; 10:antiox10060943. [PMID: 34208004 PMCID: PMC8230724 DOI: 10.3390/antiox10060943] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 06/05/2021] [Accepted: 06/08/2021] [Indexed: 12/14/2022] Open
Abstract
Helicobacter pylori (H. pylori) is a pathogenic bacteria identified as a potential risk factor for gastritis, gastric ulcers and gastric cancer. During the stomach colonization, H. pylori triggers a strong inflammatory response and subsequent oxidative stress, which are associated with tissue damage. For this reason, it is of particular interest to develop alternative natural tools that enable modulation of the associated damaging immune response. With this purpose, we obtained grape seed extract (GSE) from sweet (not fermented) food grade seeds. The aim of our study was to investigate the effect of GSE and its two enriched procyanidins fractions (OPC and PPC) on the inflammatory process and oxidative stress produced by different H. pylori strains in human gastric epithelial cells (AGS). Anti-inflammatory activity was evaluated by measuring the level of interleukin-8 (IL-8) secretion. IL-8 production was significantly reduced in H. pylori-infected human gastric epithelial cells pre-treated with GSE or its enriched fractions when compared with non-pre-treated infected cells (from 21.6% to 87.8%). Pre-treatment with GSE or its fractions significantly decreased intracellular reactive oxygen species (ROS) production in AGS cells after infection, depending on the H. pylori strain. Our results also showed that GSE and its fractions demonstrate antibacterial activity against all strains of H. pylori used in the study. This work demonstrates the effectiveness of GSE enriched in procyanidins against the main events associated with H. pylori infection.
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Affiliation(s)
- Jose Manuel Silvan
- Microbiology and Food Biocatalysis Group (MICROBIO), Department of Biotechnology and Food Microbiology, Institute of Food Science Research (CIAL, CSIC-UAM), C/Nicolás Cabrera, 9. Campus de Cantoblanco, Universidad Autonoma de Madrid, 28049 Madrid, Spain;
- Correspondence: (J.M.S.); (A.J.M.-R.); Tel.: +34-91-001-7900 (ext. 802) (J.M.S.); +34-91-001-7964 (A.J.M.-R.)
| | - Alba Gutierrez-Docio
- Department of Production and Characterization of Novel Foods, Institute of Food Science Research (CIAL, CSIC-UAM), C/Nicolas Cabrera 9, Campus de Cantoblanco, Universidad Autonoma de Madrid, 28049 Madrid, Spain; (A.G.-D.); (E.G.-H.); (M.P.)
| | - Esperanza Guerrero-Hurtado
- Department of Production and Characterization of Novel Foods, Institute of Food Science Research (CIAL, CSIC-UAM), C/Nicolas Cabrera 9, Campus de Cantoblanco, Universidad Autonoma de Madrid, 28049 Madrid, Spain; (A.G.-D.); (E.G.-H.); (M.P.)
| | - Lucia Domingo-Serrano
- Microbiology and Food Biocatalysis Group (MICROBIO), Department of Biotechnology and Food Microbiology, Institute of Food Science Research (CIAL, CSIC-UAM), C/Nicolás Cabrera, 9. Campus de Cantoblanco, Universidad Autonoma de Madrid, 28049 Madrid, Spain;
| | - Ana Blanco-Suarez
- Microbiology Department, Sanitaria Princesa Research Institute, Hospital Universitario de La Princesa, 28006 Madrid, Spain; (A.B.-S.); (T.A.-C.)
- Department of Preventive Medicine, Public Health and Microbiology, School of Medicine, Universidad Autonoma de Madrid, 28049 Madrid, Spain
| | - Marin Prodanov
- Department of Production and Characterization of Novel Foods, Institute of Food Science Research (CIAL, CSIC-UAM), C/Nicolas Cabrera 9, Campus de Cantoblanco, Universidad Autonoma de Madrid, 28049 Madrid, Spain; (A.G.-D.); (E.G.-H.); (M.P.)
| | - Teresa Alarcon-Cavero
- Microbiology Department, Sanitaria Princesa Research Institute, Hospital Universitario de La Princesa, 28006 Madrid, Spain; (A.B.-S.); (T.A.-C.)
- Department of Preventive Medicine, Public Health and Microbiology, School of Medicine, Universidad Autonoma de Madrid, 28049 Madrid, Spain
| | - Adolfo J. Martinez-Rodriguez
- Microbiology and Food Biocatalysis Group (MICROBIO), Department of Biotechnology and Food Microbiology, Institute of Food Science Research (CIAL, CSIC-UAM), C/Nicolás Cabrera, 9. Campus de Cantoblanco, Universidad Autonoma de Madrid, 28049 Madrid, Spain;
- Correspondence: (J.M.S.); (A.J.M.-R.); Tel.: +34-91-001-7900 (ext. 802) (J.M.S.); +34-91-001-7964 (A.J.M.-R.)
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Zhang Y, Feng XY, Li GQ, Xu F, Liu F, Li YY, Deng B. Epidemiological study of Helicobacter pylori infection and its relationship with pathologic changes of the antral mucosa in rural areas of Yangzhou. Shijie Huaren Xiaohua Zazhi 2021; 29:550-556. [DOI: 10.11569/wcjd.v29.i10.550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Helicobacter pylori (H. pylori) infection remains one of the world's public health problems, and socioeconomic conditions and modifiable lifestyle factors may influence the rate of H. pylori infection. As the most important controllable cause of gastric cancer, eradication of H. pylori is of great significance for the prevention of gastric cancer.
AIM To investigate the status of Helicobacter pylori infection and its relationship with the pathological change of the antral mucosa.
METHODS A total of 1412 subjects were selected from the program of Endoscopy Screening of Upper Gastrointestinal Tumor in Yangzhou from January 2019 to December 2019. Questionnaire survey, 14C-urea breath test, gastroscopy, and tissue biopsy were performed among the selected population. Statistical software was used to calculate the prevalence rate of H. pylori infection, the related influencing factors, and the relationship between H. pylori infection and the pathological changes of the antral mucosa.
RESULTS In this study, the male-to-female ratio was 1:1.5 and the age ranged from 36 to 76 years old. The prevalence rate of H. pylori infection was 43.8% in rural areas of Yangzhou city. According to the univariate analysis, there was a correlation between smoking, dietary preference, level of H. pylori awareness, gastrointestinal symptoms and H. pylori infection (P < 0.05). Multivariate analysis showed that smoking was an independent risk factor for H. pylori infection (odds ratio = 1.427, 95% confidence interval: 1.103-1.847). In the analysis of the relationship between H. pylori infection and the pathological changes of the gastric mucosa, the proportion of H. pylori-positive people exhibiting atrophic gastritis, intestinal chemosis, heterogeneous hyperplasia, and gastric cancer was significantly higher than that of H. pylori-negative participants.
CONCLUSION The H. pylori infection rate in Yangzhou is high, and bad habit can affect the prevalence of H. pylori infection. H. pylori infection is associated with the progression of gastric mucosal pathology. It is recommended to strengthen education among the population to improve the prevention and control of H. pylori in the region and reduce the incidence of gastric cancer.
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Affiliation(s)
- Yun Zhang
- Department of Gastroenterology, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
| | - Xin-Yi Feng
- Department of Gastroenterology, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
| | - Gui-Qing Li
- Department of Gastroenterology, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
| | - Fei Xu
- Digestive Endoscopy Center, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
| | - Fang Liu
- Digestive Endoscopy Center, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
| | - Yao-Yao Li
- Department of Gastroenterology, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
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Matos R, Amorim I, Magalhães A, Haesebrouck F, Gärtner F, Reis CA. Adhesion of Helicobacter Species to the Human Gastric Mucosa: A Deep Look Into Glycans Role. Front Mol Biosci 2021; 8:656439. [PMID: 34026832 PMCID: PMC8138122 DOI: 10.3389/fmolb.2021.656439] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 04/22/2021] [Indexed: 12/15/2022] Open
Abstract
Helicobacter species infections may be associated with the development of gastric disorders, such as gastritis, peptic ulcers, intestinal metaplasia, dysplasia and gastric carcinoma. Binding of these bacteria to the gastric mucosa occurs through the recognition of specific glycan receptors expressed by the host epithelial cells. This review addresses the state of the art knowledge on these host glycan structures and the bacterial adhesins involved in Helicobacter spp. adhesion to gastric mucosa colonization. Glycans are expressed on every cell surface and they are crucial for several biological processes, including protein folding, cell signaling and recognition, and host-pathogen interactions. Helicobacter pylori is the most predominant gastric Helicobacter species in humans. The adhesion of this bacterium to glycan epitopes present on the gastric epithelial surface is a crucial step for a successful colonization. Major adhesins essential for colonization and infection are the blood-group antigen-binding adhesin (BabA) which mediates the interaction with fucosylated H-type 1 and Lewis B glycans, and the sialic acid-binding adhesin (SabA) which recognizes the sialyl-Lewis A and X glycan antigens. Since not every H. pylori strain expresses functional BabA or SabA adhesins, other bacterial proteins are most probably also involved in this adhesion process, including LabA (LacdiNAc-binding adhesin), which binds to the LacdiNAc motif on MUC5AC mucin. Besides H. pylori, several other gastric non-Helicobacter pylori Helicobacters (NHPH), mainly associated with pigs (H. suis) and pets (H. felis, H. bizzozeronii, H. salomonis, and H. heilmannii), may also colonize the human stomach and cause gastric disease, including gastritis, peptic ulcers and mucosa-associated lymphoid tissue (MALT) lymphoma. These NHPH lack homologous to the major known adhesins involved in colonization of the human stomach. In humans, NHPH infection rate is much lower than in the natural hosts. Differences in the glycosylation profile between gastric human and animal mucins acting as glycan receptors for NHPH-associated adhesins, may be involved. The identification and characterization of the key molecules involved in the adhesion of gastric Helicobacter species to the gastric mucosa is important to understand the colonization and infection strategies displayed by different members of this genus.
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Affiliation(s)
- Rita Matos
- Instituto de Investigação e Inovação Em Saúde (i3S), Universidade do Porto, Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar da Universidade do Porto (ICBAS), Porto, Portugal
| | - Irina Amorim
- Instituto de Investigação e Inovação Em Saúde (i3S), Universidade do Porto, Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar da Universidade do Porto (ICBAS), Porto, Portugal
| | - Ana Magalhães
- Instituto de Investigação e Inovação Em Saúde (i3S), Universidade do Porto, Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, Portugal
| | - Freddy Haesebrouck
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
| | - Fátima Gärtner
- Instituto de Investigação e Inovação Em Saúde (i3S), Universidade do Porto, Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, Portugal
| | - Celso A. Reis
- Instituto de Investigação e Inovação Em Saúde (i3S), Universidade do Porto, Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar da Universidade do Porto (ICBAS), Porto, Portugal
- Faculdade de Medicina da Universidade do Porto (FMUP), Porto, Portugal
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González MF, Díaz P, Sandoval-Bórquez A, Herrera D, Quest AFG. Helicobacter pylori Outer Membrane Vesicles and Extracellular Vesicles from Helicobacter pylori-Infected Cells in Gastric Disease Development. Int J Mol Sci 2021; 22:ijms22094823. [PMID: 34062919 PMCID: PMC8124820 DOI: 10.3390/ijms22094823] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 02/08/2023] Open
Abstract
Extracellular vesicles (EVs) are cell-derived vesicles important in intercellular communication that play an essential role in host-pathogen interactions, spreading pathogen-derived as well as host-derived molecules during infection. Pathogens can induce changes in the composition of EVs derived from the infected cells and use them to manipulate their microenvironment and, for instance, modulate innate and adaptive inflammatory immune responses, both in a stimulatory or suppressive manner. Gastric cancer is one of the leading causes of cancer-related deaths worldwide and infection with Helicobacter pylori (H. pylori) is considered the main risk factor for developing this disease, which is characterized by a strong inflammatory component. EVs released by host cells infected with H. pylori contribute significantly to inflammation, and in doing so promote the development of disease. Additionally, H. pylori liberates vesicles, called outer membrane vesicles (H. pylori-OMVs), which contribute to atrophia and cell transformation in the gastric epithelium. In this review, the participation of both EVs from cells infected with H. pylori and H. pylori-OMVs associated with the development of gastric cancer will be discussed. By deciphering which functions of these external vesicles during H. pylori infection benefit the host or the pathogen, novel treatment strategies may become available to prevent disease.
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Affiliation(s)
- María Fernanda González
- Center for studies on Exercise, Metabolism and Cancer (CEMC), Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Faculty of Medicine, Institute of Biomedical Sciences (ICBM), Universidad de Chile, Santiago 8380453, Chile; (M.F.G.); (P.D.); (A.S.-B.); (D.H.)
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile
| | - Paula Díaz
- Center for studies on Exercise, Metabolism and Cancer (CEMC), Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Faculty of Medicine, Institute of Biomedical Sciences (ICBM), Universidad de Chile, Santiago 8380453, Chile; (M.F.G.); (P.D.); (A.S.-B.); (D.H.)
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile
| | - Alejandra Sandoval-Bórquez
- Center for studies on Exercise, Metabolism and Cancer (CEMC), Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Faculty of Medicine, Institute of Biomedical Sciences (ICBM), Universidad de Chile, Santiago 8380453, Chile; (M.F.G.); (P.D.); (A.S.-B.); (D.H.)
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile
| | - Daniela Herrera
- Center for studies on Exercise, Metabolism and Cancer (CEMC), Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Faculty of Medicine, Institute of Biomedical Sciences (ICBM), Universidad de Chile, Santiago 8380453, Chile; (M.F.G.); (P.D.); (A.S.-B.); (D.H.)
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile
| | - Andrew F. G. Quest
- Center for studies on Exercise, Metabolism and Cancer (CEMC), Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Faculty of Medicine, Institute of Biomedical Sciences (ICBM), Universidad de Chile, Santiago 8380453, Chile; (M.F.G.); (P.D.); (A.S.-B.); (D.H.)
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile
- Corporación Centro de Estudios Científicos de las Enfermedades Crónicas (CECEC), Santiago 7680201, Chile
- Correspondence: ; Tel.: +56-2-29786832
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Zoaiter M, Nasser R, Hage-Sleiman R, Abdel-Sater F, Badran B, Zeaiter Z. Helicobacter pylori outer membrane vesicles induce expression and secretion of oncostatin M in AGS gastric cancer cells. Braz J Microbiol 2021; 52:1057-66. [PMID: 33851342 DOI: 10.1007/s42770-021-00490-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 04/06/2021] [Indexed: 01/01/2023] Open
Abstract
Helicobacter pylori, a human pathogen that colonizes the stomach of 50% of the world's population, is associated with gastritis, gastric adenocarcinoma, and mucosa-associated lymphoid tissue (MALT) lymphoma. Diseases are characterized by severe inflammatory responses in the stomach that are induced by various chemokines and cytokines. Recently, oncostatin M (OSM), an IL-6 family cytokine, was detected in early gastric cancer biopsies. In this study, we showed that Helicobacter pylori induced secretion of OSM and overexpression of its type II receptor OSMRβ (OSM/OSMRβ) in a human gastric adenocarcinoma cell line (AGS) over 24 h of infection. Furthermore, we showed that the induction of OSM and OSMRβ was carried out by heat-sensitive Helicobacter pylori outer membrane vesicle (OMV) protein. Collectively, our results established, for the first time, a direct relation between Helicobacter pylori OMVs and the OSM/OSMRβ signaling axis.
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Xue Z, You Y, He L, Gong Y, Sun L, Han X, Fan R, Zhai K, Yang Y, Zhang M, Yan X, Zhang J. Diversity of 3' variable region of cagA gene in Helicobacter pylori strains isolated from Chinese population. Gut Pathog 2021; 13:23. [PMID: 33849660 PMCID: PMC8042891 DOI: 10.1186/s13099-021-00419-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 04/01/2021] [Indexed: 12/18/2022] Open
Abstract
Background The cytotoxin-associated gene A (cagA) is one of the most important virulence factors of Helicobacter pylori (H. pylori). There is a highly polymorphic Glu-Pro-Ile-Tyr-Ala (EPIYA) repeat region in the C-terminal of CagA protein. This repeat region is thought to play an important role in the pathogenesis of gastrointestinal diseases. The aim of this study was to investigate the diversity of cagA 3′ variable region and the amino acid polymorphisms in the EPIYA segments of the CagA C-terminal region of H. pylori, and their association with gastroduodenal diseases. Methods A total of 515 H. pylori strains from patients in 14 different geographical regions of China were collected. The genomic DNA from each strain was extracted and the cagA 3′ variable region was amplified by polymerase chain reaction (PCR). The PCR products were sequenced and analyzed using MEGA 7.0 software. Results A total of 503 (97.7%) H. pylori strains were cagA-positive and 1,587 EPIYA motifs were identified, including 12 types of EPIYA or EPIYA-like sequences. In addition to the four reported major segments, several rare segments (e.g., B′, B″ and D′) were defined and 20 different sequence types (e.g., ABD, ABC) were found in our study. A total of 481 (95.6%) strains carried the East Asian type CagA, and the ABD subtypes were most prevalent (82.1%). Only 22 strains carried the Western type CagA, which included AC, ABC, ABCC and ABCCCC subtypes. The CagA-ABD subtype had statistical difference in different geographical regions (P = 0.006). There were seven amino acid polymorphisms in the sequences surrounding the EPIYA motifs, among which amino acids 893 and 894 had a statistical difference with gastric cancer (P = 0.004). Conclusions In this study, 503 CagA sequences were studied and analyzed in depth. In Chinese population, most H. pylori strains were of the CagA-ABD subtype and its presence was associated with gastroduodenal diseases. Amino acid polymorphisms at residues 893 and 894 flanking the EPIYA motifs had a statistically significant association with gastric cancer.
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Affiliation(s)
- Zhijing Xue
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing, China
| | - Yuanhai You
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing, China
| | - Lihua He
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing, China
| | - Yanan Gong
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing, China
| | - Lu Sun
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing, China
| | - Xiurui Han
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing, China
| | - Ruyue Fan
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing, China
| | - Kangle Zhai
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing, China
| | - Yaming Yang
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing, China
| | - Maojun Zhang
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing, China
| | - Xiaomei Yan
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing, China
| | - Jianzhong Zhang
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing, China.
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Abstract
Background Mucosal immunity plays an important role in the pathogenesis of IgA nephropathy (IgAN). This study aimed to investigate if infection of Helicobacter pylori (H. pylori), a common bacteria in the gastrointestinal tract, associated with IgAN. Methods This study included 261 patients with IgAN and 46 healthy controls. Clinical information and plasma samples were collected from patients and healthy controls. H. pylori infection was confirmed by western blot. Plasma IgA1 and galactose-deficient IgA1 (Gd-IgA1) levels were detected by specific enzyme-linked immunosorbent assay. Results Total H. pylori infection rates showed no statistical differences between IgAN patients and healthy controls, but the infection rates of type I H. pylori in IgAN patients were significantly higher than those in healthy controls (44.4 vs. 28.3%, p = 0.040). Compared with uninfected patients, the systolic blood pressure, 24-h proteinuria, and blood urea nitrogen levels were significantly higher in patients with H. pylori infection (126.0 ± 15.5 vs. 119.6 ± 14.5 mmHg, p = 0.010; 1.8 ± 2.7 vs. 1.2 ± 1.4 g/24h, p = 0.013; 7.9 ± 5.4 vs. 6.7 ± 3.9 μmol/L, p = 0.042), especially in patients with type I infection (126.5 ± 15.4 vs. 119.6 ± 14.5 mmHg, p = 0.002; 1.9 ± 2.9 vs. 1.2 ± 1.4 g/24 h, p = 0.033; 8.1 ± 5.6 vs. 6.7 ± 3.9 μmol/L, p = 0.041). Similarly, patients with IgAN and type I H. pylori infection showed higher plasma Gd-IgA1 levels than uninfected patients (5.5 ± 2.2 vs. 4.5 ± 2.2 μg/mL, p = 0.037). Conclusions Virulent type I H. pylori infection is more common in patients with IgAN. Patients with IgAN and type I H. pylori infection showed lower renal function and higher underglycosylation of plasma IgA1.
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Affiliation(s)
- Xing-Zi Liu
- Renal Division, Peking University First Hospital, Peking University Institute of Nephrology, Beijing, People's Republic of China.,Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, People's Republic of China
| | - Yue-Miao Zhang
- Renal Division, Peking University First Hospital, Peking University Institute of Nephrology, Beijing, People's Republic of China.,Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, People's Republic of China
| | - Ni-Ya Jia
- Renal Division, Peking University First Hospital, Peking University Institute of Nephrology, Beijing, People's Republic of China.,Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, People's Republic of China
| | - Hong Zhang
- Renal Division, Peking University First Hospital, Peking University Institute of Nephrology, Beijing, People's Republic of China.,Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, People's Republic of China
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Wu Y, Song Z, Deng G, Jiang K, Wang H, Zhang X, Han H. Gastric Acid Powered Nanomotors Release Antibiotics for In Vivo Treatment of Helicobacter pylori Infection. Small 2021; 17:e2006877. [PMID: 33619851 DOI: 10.1002/smll.202006877] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/04/2021] [Indexed: 05/18/2023]
Abstract
Helicobacter pylori (H. pylori) infection has ≈75% probability of causing gastric cancer, so it is considered to be the strongest single risk factor for gastric malignancies. However, the harsh gastric acid environment has created obstacles to medical treatment. This work reports a nanomotor with a bottle-shaped container that can be loaded with small molecules of clarithromycin, nano calcium peroxide (CaO2 ), and Pt nanoparticles (Pt NPs) by ultrasound. Nanomotors can quickly consume gastric acid through the chemical reaction of CaO2 to temporarily neutralize gastric acid. The product hydrogen peroxide (H2 O2 ) is catalytically decomposed into a large amount of oxygen (O2 ) by Pt NPs. The local concentration gradient of O2 bubbles causes it to be expelled from the nanobottles through a narrow opening, and then push the nanobottles forward to provide maximum release and prodrug efficacy. Experiments in animal models show that 15 mg nanomotors can safely and quickly neutralize gastric acid in the stomach and simultaneously release prodrugs to achieve good therapeutic effects without causing acute toxicity. H. pylori burden in mice was 2.6 orders of magnitude lower than that in the control group. The stomach returns to normal pH within 1 d after administration.
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Affiliation(s)
- Yang Wu
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhiyong Song
- State Key Laboratory of Agriculture Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Guiyun Deng
- State Key Laboratory of Agriculture Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Kai Jiang
- State Key Laboratory of Agriculture Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Huajuan Wang
- State Key Laboratory of Agriculture Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Heyou Han
- State Key Laboratory of Agriculture Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- State Key Laboratory of Agriculture Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
- State Key Laboratory of Agriculture Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
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Xu X, Chen J, Huang X, Feng S, Zhang X, She F, Wen Y. The Role of a Dipeptide Transporter in the Virulence of Human Pathogen, Helicobacter pylori. Front Microbiol 2021; 12:633166. [PMID: 33732225 PMCID: PMC7959749 DOI: 10.3389/fmicb.2021.633166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/05/2021] [Indexed: 12/16/2022] Open
Abstract
Helicobacter pylori harbors a dipeptide (Dpp) transporter consisting of a substrate-binding protein (DppA), two permeases (DppB and C), and two ATPases (DppD and F). The Dpp transporter is responsible for the transportation of dipeptides and short peptides. We found that its expression is important for the growth of H. pylori. To understand the role of the Dpp transporter in the pathogenesis of H. pylori, the expression of virulence factors and H. pylori-induced IL-8 production were investigated in H. pylori wild-type and isogenic H. pylori Dpp transporter mutants. We found that expression of CagA was downregulated, while expression of type 4 secretion system (T4SS) components was upregulated in Dpp transporter mutants. The DppA mutant strain expressed higher levels of outer membrane proteins (OMPs), including BabA, HopZ, OipA, and SabA, and showed a higher adhesion level to gastric epithelial AGS cells compared with the H. pylori 26695 wild-type strain. After infection of AGS cells, H. pylori ΔdppA induced a higher level of NF-κB activation and IL-8 production compared with wild-type. These results suggested that in addition to supporting the growth of H. pylori, the Dpp transporter causes bacteria to alter the expression of virulence factors and reduces H. pylori-induced NF-κB activation and IL-8 production in gastric epithelial cells.
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Affiliation(s)
- Xiaohong Xu
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Department of Medical Microbiology, Fujian Medical University, Fuzhou, China.,Fujian Medical University Union Hospital, Fuzhou, China
| | - Junwei Chen
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Department of Medical Microbiology, Fujian Medical University, Fuzhou, China
| | - Xiaoxing Huang
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Department of Medical Microbiology, Fujian Medical University, Fuzhou, China
| | - Shunhang Feng
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Department of Medical Microbiology, Fujian Medical University, Fuzhou, China
| | - Xiaoyan Zhang
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Department of Medical Microbiology, Fujian Medical University, Fuzhou, China
| | - Feifei She
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Department of Medical Microbiology, Fujian Medical University, Fuzhou, China
| | - Yancheng Wen
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China.,Fujian Key Laboratory of Tumor Microbiology, Department of Medical Microbiology, Fujian Medical University, Fuzhou, China
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Khani D, Hedayati MA, Nasseri S, Sheikhesmaeili F, Ghadiany R. ZAK Gene Expression in Patients with Helicobacter pylori Infection. J Gastrointest Cancer 2021; 53:326-332. [PMID: 33620708 DOI: 10.1007/s12029-021-00611-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/11/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND ZAK protein is a member of the MLK family proteins defined as mediators in the cell cycle. A survey of ZAK gene expression in gastric antral epithelial cells (GAECs) of gastritis and gastric adenocarcinoma patients with Helicobacter pylori genotypes infection can elucidate carcinogenesis of H. pylori genotypes. METHODS In a case-control study, ZAK gene expression was evaluated in GAECs biopsy samples of gastritis and gastric adenocarcinoma patients with (n 23, 21) and without H. pylori infection (n 27, 32), respectively. Total RNA was extracted from each gastric antral biopsy samples and cDNA synthesized by using Takara kits. H. pylori virulence genes֝ cDNA were detected by traditional PCR and specific primers. The ZAK gene expression was measured using the relative Real-Time RT PCR. RESULTS The prevalence of gastric adenocarcinoma was the highest in man and 61-85 aged groups (p < .05). There was no significant correlation between the prevalence of H. pylori infection and patients' demographic groups. This study showed that ZAK gene overexpression gradually increases with increasing age and tumor grade among gastric adenocarcinoma patients. The gastric antral biopsy samples with H. pylori vacA s1m2 genotype infection showed a weak correlation with ZAK gene overexpression (p < .1). CONCLUSION ZAK gene expression was higher in GAECs of gastritis cancer than in gastric adenocarcinoma, indicating the protective effect of ZAK against gastric cancer (p < .005). Reducing ZAK gene expression shows the negative correlations with H. pylori infection and gastric adenocarcinoma.
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Affiliation(s)
- Delniya Khani
- Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran.,Department of Microbiology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Manouchehr Ahmadi Hedayati
- Department of Microbiology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran. .,Liver and Digestive Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran.
| | - Sherko Nasseri
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Farshad Sheikhesmaeili
- Liver and Digestive Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Roghaie Ghadiany
- Liver and Digestive Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
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Raj R, Agarwal N, Raghavan S, Chakraborti T, Poluri KM, Pande G, Kumar D. Epigallocatechin Gallate with Potent Anti- Helicobacter pylori Activity Binds Efficiently to Its Histone-like DNA Binding Protein. ACS Omega 2021; 6:3548-3570. [PMID: 33585739 PMCID: PMC7876696 DOI: 10.1021/acsomega.0c04763] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 01/21/2021] [Indexed: 05/10/2023]
Abstract
Helicobacter pylori (H. pylori)-a human gastric pathogen-forms a major risk factor for the development of various gastric pathologies such as chronic inflammatory gastritis, peptic ulcer, lymphomas of mucosa-associated lymphoid tissues, and gastric carcinoma. The complete eradication of infection is the primary objective of treating any H. pylori-associated gastric condition. However, declining eradication efficiencies, off-target effects, and patient noncompliance to prolong and broad-spectrum antibiotic treatments has spurred the clinical interest to search for alternative effective and safer therapeutic options. As natural compounds are safe and privileged with high levels of antibacterial-activity, previous studies have tested and reported a plethora of such compounds with potential in vitro/in vivo anti-H. pylori activity. However, the mode of action of majority of these natural compounds is unclear. The present study has been envisaged to compile the information of various such natural compounds and to evaluate their binding with histone-like DNA-binding proteins of H. pylori (referred here as Hup) using in silico molecular docking-based virtual screening experiments. Hup-being a major nucleoid-associated protein expressed by H. pylori-plays a strategic role in its survival and persistent colonization under hostile stress conditions. The ligand with highest binding energy with Hup-that is, epigallocatechin-(-)gallate (EGCG)-was rationally selected for further computational and experimental testing. The best docking poses of EGCG with Hup were first evaluated for their solution stability using long run molecular dynamics simulations and then using fluorescence and nuclear magnetic resonance titration experiments which demonstrated that the binding of EGCG with Hup is fairly strong (the resultant apparent dissociation constant (k D) values were equal to 2.61 and 3.29 ± 0.42 μM, respectively).
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Affiliation(s)
- Ritu Raj
- Centre
of Biomedical Research (CBMR), SGPGIMS Campus, Raibareli Road, Lucknow 226014, Uttar Pradesh, India
- Department
of Biochemistry & Biophysics, University
of Kalyani, Kalyani 741235, West Bengal, India
| | - Nipanshu Agarwal
- Department
of Biotechnology and Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Sriram Raghavan
- Computational
Structural Biology Team, RIKEN Center for
Computational Science (R-CCS), Kobe 650-0047, Japan
| | - Tapati Chakraborti
- Department
of Biochemistry & Biophysics, University
of Kalyani, Kalyani 741235, West Bengal, India
| | - Krishna Mohan Poluri
- Department
of Biotechnology and Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Gaurav Pande
- Department
of Gastroeneterology, SGPGIMS, Lucknow 226014, Uttar Pradesh, India
- . Phone: +91-9170689999
| | - Dinesh Kumar
- Centre
of Biomedical Research (CBMR), SGPGIMS Campus, Raibareli Road, Lucknow 226014, Uttar Pradesh, India
- . Phone: +91-8953261506
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48
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Suárez-Jaramillo A, Baldeón ME, Prado B, Fornasini M, Cohen H, Flores N, Salvador I, Cargua O, Realpe J, Cárdenas PA. Duodenal microbiome in patients with or without Helicobacter pylori infection. Helicobacter 2020; 25:e12753. [PMID: 32896972 DOI: 10.1111/hel.12753] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/06/2020] [Accepted: 07/25/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Intestinal microbiota are recognized as an organ with important physiological functions whose alterations have been associated with common diseases including inflammatory intestinal conditions, malnutrition, type-2 diabetes, and cardiovascular diseases. The composition and function of the microbiota in the distal part of the intestine has been mainly described, while there is limited information on the small intestine microbiota. The objective of the present study was to describe the duodenal microbiome in individuals with dyspepsia in the presence or absence of Helicobacter pylori gastric infection. MATERIALS AND METHODS Thirty-eight biopsies from the proximal duodenum of uninfected and 37 from H pylori-infected individuals were analyzed. Microbiota composition was assessed by PCR amplification and sequencing of 16S rRNA and ITS genes; sequences were analyzed with QIIME2. RESULTS AND CONCLUSIONS At the phyla level, Proteobacteria, Bacteroidetes, Firmicutes, Actinobacteria, and Fusobacteria were predominant in the mucosal associated duodenal microbiota (MAM); at the genera level, we observed the predominance of Ralstonia, Streptococcus, Pseudomonas, Haemophilus, Herbaspirillum, Neisseria, and Veillonella. Microbiota α-diversity was higher in H pylori-infected individuals than in non-infected ones. In terms of β-diversity metrics, there was a statistically significant difference between groups. Also, relative abundance of Haemophilus, Neisseria, Prevotella pallens, Prevotella 7, and Streptococcus was greater in H pylori-infected patients. In infected patients, several types of H pylori were present in duodenal MAM. Finally, the majority of duodenal samples had fungi sequences; the most common taxa observed were Recurvomyces followed by Ascomycota and Basidiomycota.
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Affiliation(s)
| | - Manuel E Baldeón
- Facultad de Ciencias de la Salud Eugenio Espejo, Centro de Investigación Biomédica, Universidad Tecnológica Equinoccial, Quito, Ecuador
| | - Belén Prado
- Instituto de Microbiología, COCIBA, Universidad San Francisco de Quito, Quito, Ecuador
| | - Marco Fornasini
- Facultad de Ciencias de la Salud Eugenio Espejo, Centro de Investigación Biomédica, Universidad Tecnológica Equinoccial, Quito, Ecuador
| | - Henry Cohen
- Facultad de Medicina, Universidad de la República Uruguay, Montevideo, Uruguay
| | - Nancy Flores
- Facultad de Ciencias de la Salud Eugenio Espejo, Centro de Investigación Biomédica, Universidad Tecnológica Equinoccial, Quito, Ecuador
| | - Iván Salvador
- Facultad de Ciencias de la Salud Eugenio Espejo, Centro de Investigación Biomédica, Universidad Tecnológica Equinoccial, Quito, Ecuador
| | - Oswaldo Cargua
- Facultad de Ciencias de la Salud Eugenio Espejo, Centro de Investigación Biomédica, Universidad Tecnológica Equinoccial, Quito, Ecuador
| | - José Realpe
- Facultad de Ciencias de la Salud Eugenio Espejo, Centro de Investigación Biomédica, Universidad Tecnológica Equinoccial, Quito, Ecuador
| | - Paul A Cárdenas
- Instituto de Microbiología, COCIBA, Universidad San Francisco de Quito, Quito, Ecuador
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49
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Algood HMS. T Cell Cytokines Impact Epithelial Cell Responses during Helicobacter pylori Infection. J Immunol 2020; 204:1421-1428. [PMID: 32152211 DOI: 10.4049/jimmunol.1901307] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 12/08/2019] [Indexed: 12/24/2022]
Abstract
The goal of this Brief Review is to highlight literature that demonstrates how cytokines made by T lymphocytes impact the gastric epithelium, especially during Helicobacter pylori infection. These cytokines effect many of the diverse functions of the epithelium and the epithelium's interactions with H. pylori The focal point of this Brief Review will be on how T cell cytokines impact antimicrobial function and barrier function and how T cell cytokines influence the development and progression of cancer. Furthermore, the modulation of epithelial-derived chemokines by H. pylori infection will be discussed.
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Affiliation(s)
- Holly M Scott Algood
- Veterans Affairs Tennessee Valley Healthcare Services, Nashville, TN 37212; Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37212; and Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN 37212
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50
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Zheng M, Sun S, Zhou J, Liu M. Virulence factors impair epithelial junctions during bacterial infection. J Clin Lab Anal 2020; 35:e23627. [PMID: 33070380 PMCID: PMC7891540 DOI: 10.1002/jcla.23627] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/10/2020] [Accepted: 09/28/2020] [Indexed: 12/14/2022] Open
Abstract
Epithelial cells are typically connected through different types of cell junctions that are localized from the apical membrane to the basal surface. In this way, epithelium cells form the first barrier against pathogenic microorganisms and prevent their entry into internal organs and the circulatory system. Recent studies demonstrate that bacterial pathogens disrupt epithelial cell junctions through targeting junctional proteins by secreted virulence factors. In this review, we discuss the diverse strategies used by common bacterial pathogens, including Pseudomonas aeruginosa, Helicobacter pylori, and enteropathogenic Escherichia coli, to disrupt epithelial cell junctions during infection. We also discuss the potential of targeting the pathogenic mechanisms in the treatment of pathogen-associated diseases.
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Affiliation(s)
- Manxi Zheng
- Institute of Biomedical Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Shuang Sun
- Institute of Biomedical Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Jun Zhou
- Institute of Biomedical Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Min Liu
- Institute of Biomedical Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
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