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Peregrino ES, Castañeda-Casimiro J, Vázquez-Flores L, Estrada-Parra S, Wong-Baeza C, Serafín-López J, Wong-Baeza I. The Role of Bacterial Extracellular Vesicles in the Immune Response to Pathogens, and Therapeutic Opportunities. Int J Mol Sci 2024; 25:6210. [PMID: 38892397 PMCID: PMC11172497 DOI: 10.3390/ijms25116210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 05/28/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024] Open
Abstract
Pathogenic bacteria have several mechanisms to evade the host's immune response and achieve an efficient infection. Bacterial extracellular vesicles (EVs) are a relevant cellular communication mechanism, since they can interact with other bacterial cells and with host cells. In this review, we focus on the EVs produced by some World Health Organization (WHO) priority Gram-negative and Gram-positive pathogenic bacteria; by spore-producing bacteria; by Mycobacterium tuberculosis (a bacteria with a complex cell wall); and by Treponema pallidum (a bacteria without lipopolysaccharide). We describe the classification and the general properties of bacterial EVs, their role during bacterial infections and their effects on the host immune response. Bacterial EVs contain pathogen-associated molecular patterns that activate innate immune receptors, which leads to cytokine production and inflammation, but they also contain antigens that induce the activation of B and T cell responses. Understanding the many effects of bacterial EVs on the host's immune response can yield new insights on the pathogenesis of clinically important infections, but it can also lead to the development of EV-based diagnostic and therapeutic strategies. In addition, since EVs are efficient activators of both the innate and the adaptive immune responses, they constitute a promising platform for vaccine development.
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Affiliation(s)
- Eliud S. Peregrino
- Posgrado en Inmunología, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), Mexico City 11340, Mexico; (E.S.P.); (J.C.-C.)
| | - Jessica Castañeda-Casimiro
- Posgrado en Inmunología, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), Mexico City 11340, Mexico; (E.S.P.); (J.C.-C.)
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), Mexico City 11340, Mexico; (S.E.-P.); (J.S.-L.)
| | - Luis Vázquez-Flores
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), Mexico City 11340, Mexico; (L.V.-F.); (C.W.-B.)
| | - Sergio Estrada-Parra
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), Mexico City 11340, Mexico; (S.E.-P.); (J.S.-L.)
| | - Carlos Wong-Baeza
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), Mexico City 11340, Mexico; (L.V.-F.); (C.W.-B.)
| | - Jeanet Serafín-López
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), Mexico City 11340, Mexico; (S.E.-P.); (J.S.-L.)
| | - Isabel Wong-Baeza
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), Mexico City 11340, Mexico; (S.E.-P.); (J.S.-L.)
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Bhattacharjee A, Sahoo OS, Sarkar A, Bhattacharya S, Chowdhury R, Kar S, Mukherjee O. Infiltration to infection: key virulence players of Helicobacter pylori pathogenicity. Infection 2024; 52:345-384. [PMID: 38270780 DOI: 10.1007/s15010-023-02159-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 12/13/2023] [Indexed: 01/26/2024]
Abstract
PURPOSE This study aims to comprehensively review the multifaceted factors underlying the successful colonization and infection process of Helicobacter pylori (H. pylori), a prominent Gram-negative pathogen in humans. The focus is on elucidating the functions, mechanisms, genetic regulation, and potential cross-interactions of these elements. METHODS Employing a literature review approach, this study examines the intricate interactions between H. pylori and its host. It delves into virulence factors like VacA, CagA, DupA, Urease, along with phase variable genes, such as babA, babC, hopZ, etc., giving insights about the bacterial perspective of the infection The association of these factors with the infection has also been added in the form of statistical data via Funnel and Forest plots, citing the potential of the virulence and also adding an aspect of geographical biasness to the virulence factors. The biochemical characteristics and clinical relevance of these factors and their effects on host cells are individually examined, both comprehensively and statistically. RESULTS H. pylori is a Gram-negative, spiral bacterium that successfully colonises the stomach of more than half of the world's population, causing peptic ulcers, gastric cancer, MALT lymphoma, and other gastro-duodenal disorders. The clinical outcomes of H. pylori infection are influenced by a complex interplay between virulence factors and phase variable genes produced by the infecting strain and the host genetic background. A meta-analysis of the prevalence of all the major virulence factors has also been appended. CONCLUSION This study illuminates the diverse elements contributing to H. pylori's colonization and infection. The interplay between virulence factors, phase variable genes, and host genetics determines the outcome of the infection. Despite biochemical insights into many factors, their comprehensive regulation remains an understudied area. By offering a panoramic view of these factors and their functions, this study enhances understanding of the bacterium's perspective, i.e. H. pylori's journey from infiltration to successful establishment within the host's stomach.
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Affiliation(s)
- Arghyadeep Bhattacharjee
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, West Bengal, 713209, India
- Department of Microbiology, Kingston College of Science, Beruanpukuria, Barasat, West Bengal, 700219, India
| | - Om Saswat Sahoo
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, West Bengal, 713209, India
| | - Ahana Sarkar
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, West Bengal, 713209, India
| | - Saurabh Bhattacharya
- Department of Microbiology and Molecular Genetics, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, The Hebrew University of Jerusalem, P.O.B. 12272, 9112001, Jerusalem, Israel
| | - Rukhsana Chowdhury
- School of Biological Sciences, RKM Vivekananda Educational and Research Institute Narendrapur, Kolkata, India
| | - Samarjit Kar
- Department of Mathematics, National Institute of Technology Durgapur, Durgapur, West Bengal, 713209, India
| | - Oindrilla Mukherjee
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, West Bengal, 713209, India.
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Xiao M, Li G, Yang H. Microbe-host interactions: structure and functions of Gram-negative bacterial membrane vesicles. Front Microbiol 2023; 14:1225513. [PMID: 37720140 PMCID: PMC10500606 DOI: 10.3389/fmicb.2023.1225513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 08/17/2023] [Indexed: 09/19/2023] Open
Abstract
Bacteria-host interaction is a common, relevant, and intriguing biological phenomena. The host reacts actively or passively to the bacteria themselves, their products, debris, and so on, through various defense systems containing the immune system, the bacteria communicate with the local or distal tissues of the host via their own surface antigens, secreted products, nucleic acids, etc., resulting in relationships of attack and defense, adaptation, symbiosis, and even collaboration. The significance of bacterial membrane vesicles (MVs) as a powerful vehicle for the crosstalk mechanism between the two is growing. In the recent decade, the emergence of MVs in microbial interactions and a variety of bacterial infections, with multiple adhesions to host tissues, cell invasion and evasion of host defense mechanisms, have brought MVs to the forefront of bacterial pathogenesis research. Whereas MVs are a complex combination of molecules not yet fully understood, research into its effects, targeting and pathogenic components will advance its understanding and utilization. This review will summarize structural, extraction and penetration information on several classes of MVs and emphasize the role of MVs in transport and immune response activation. Finally, the potential of MVs as a therapeutic method will be highlighted, as will future research prospects.
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Affiliation(s)
- Min Xiao
- Yunnan Key Laboratory of Stomatology, Kunming Medical University, Kunming, Yunnan, China
- Department of Dental Research, The Affiliated Stomatology Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Guiding Li
- Yunnan Key Laboratory of Stomatology, Kunming Medical University, Kunming, Yunnan, China
- Department of Dental Research, The Affiliated Stomatology Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Hefeng Yang
- Yunnan Key Laboratory of Stomatology, Kunming Medical University, Kunming, Yunnan, China
- Department of Dental Research, The Affiliated Stomatology Hospital of Kunming Medical University, Kunming, Yunnan, China
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Luo D, Luo H, Yan X, Lei A, He J, Liao Y, Peng K, Li X, Ye Y, Chen L, Zeng Z, Xiao H, Zeng Y. Mycoplasma genitalium Protein of Adhesion Suppresses T Cell Activation via CypA-CaN-NFAT Pathway. Microbiol Spectr 2023; 11:e0450322. [PMID: 37074201 PMCID: PMC10269615 DOI: 10.1128/spectrum.04503-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 03/21/2023] [Indexed: 04/20/2023] Open
Abstract
Mycoplasma genitalium is a prokaryotic microorganism that causes urogenital tract infections. M. genitalium protein of adhesion (MgPa) was essential for M. genitalium attachment and subsequent invasion into host cells. Our prior research confirmed that Cyclophilin A (CypA) was the binding receptor for MgPa and MgPa-CypA interaction can lead to the production of inflammatory cytokines. In this study, we revealed that the recombinant MgPa (rMgPa) could inhibit the CaN-NFAT signaling pathway to reduce the level of IFN-γ, IL-2, CD25, and CD69 in Jurkat cells by binding to the CypA receptor. Moreover, rMgPa inhibited the expressions of IFN-γ, IL-2, CD25, and CD69 in primary mouse T cells. Likewise, the expressions of these T cells activation-related molecules in CypA-siRNA-transfected cells and CypA-/- mouse primary T cell was strengthened by rMgPa. These findings showed that rMgPa suppressed T cell activation by downregulating the CypA-CaN-NFAT pathway, and as a result, acted as an immunosuppressive agent. IMPORTANCE Mycoplasma genitalium is a sexually transmitted bacterium that can co-infect with other infections and causes nongonococcal urethritis in males, cervicitis, pelvic inflammatory disease, premature birth, and ectopic pregnancy in women. The adhesion protein of M. genitalium (MgPa) is the primary virulence factor in the complicated pathogenicity of M. genitalium. This research proved that MgPa could interact with host cell Cyclophilin A (CypA) and prevent T cell activation by inhibiting Calcineurin (CaN) phosphorylation and NFAT nuclear translocation, which clarified the immunosuppression mechanism of M. genitalium to host T cells. Therefore, this study can provide a new idea that CypA can be used for a therapeutic or prophylactic target for M. genitalium infection.
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Affiliation(s)
- Dan Luo
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, China
- Department of Clinical Laboratory, the Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Haodang Luo
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, China
- Department of Clinical Laboratory, the Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Xiaoliang Yan
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, China
| | - Aihua Lei
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, China
| | - Jun He
- Department of Clinical Laboratory, the Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yating Liao
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, China
| | - Kailan Peng
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, China
| | - Xia Li
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, China
| | - Youyuan Ye
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, China
| | - Li Chen
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, China
| | - Zhuo Zeng
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, China
| | - Hua Xiao
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, China
| | - Yanhua Zeng
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, China
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Luo R, Chang Y, Liang H, Zhang W, Song Y, Li G, Yang C. Interactions between extracellular vesicles and microbiome in human diseases: New therapeutic opportunities. IMETA 2023; 2:e86. [PMID: 38868436 PMCID: PMC10989913 DOI: 10.1002/imt2.86] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/21/2022] [Accepted: 01/14/2023] [Indexed: 06/14/2024]
Abstract
In recent decades, accumulating research on the interactions between microbiome homeostasis and host health has broadened new frontiers in delineating the molecular mechanisms of disease pathogenesis and developing novel therapeutic strategies. By transporting proteins, nucleic acids, lipids, and metabolites in their versatile bioactive molecules, extracellular vesicles (EVs), natural bioactive cell-secreted nanoparticles, may be key mediators of microbiota-host communications. In addition to their positive and negative roles in diverse physiological and pathological processes, there is considerable evidence to implicate EVs secreted by bacteria (bacterial EVs [BEVs]) in the onset and progression of various diseases, including gastrointestinal, respiratory, dermatological, neurological, and musculoskeletal diseases, as well as in cancer. Moreover, an increasing number of studies have explored BEV-based platforms to design novel biomedical diagnostic and therapeutic strategies. Hence, in this review, we highlight the recent advances in BEV biogenesis, composition, biofunctions, and their potential involvement in disease pathologies. Furthermore, we introduce the current and emerging clinical applications of BEVs in diagnostic analytics, vaccine design, and novel therapeutic development.
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Affiliation(s)
- Rongjin Luo
- Department of Orthopaedics, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Department of Spine Surgery, Honghui HospitalXi'an Jiaotong UniversityXi'anChina
| | - Yanmin Chang
- Department of Neurology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Huaizhen Liang
- Department of Orthopaedics, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Weifeng Zhang
- Department of Orthopaedics, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Yu Song
- Department of Orthopaedics, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Gaocai Li
- Department of Orthopaedics, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Cao Yang
- Department of Orthopaedics, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
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Jalalifar S, Morovati Khamsi H, Hosseini-Fard SR, Karampoor S, Bajelan B, Irajian G, Mirzaei R. Emerging role of microbiota derived outer membrane vesicles to preventive, therapeutic and diagnostic proposes. Infect Agent Cancer 2023; 18:3. [PMID: 36658631 PMCID: PMC9850788 DOI: 10.1186/s13027-023-00480-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 01/12/2023] [Indexed: 01/20/2023] Open
Abstract
The role of gut microbiota and its products in human health and disease is profoundly investigated. The communication between gut microbiota and the host involves a complicated network of signaling pathways via biologically active molecules generated by intestinal microbiota. Some of these molecules could be assembled within nanoparticles known as outer membrane vesicles (OMVs). Recent studies propose that OMVs play a critical role in shaping immune responses, including homeostasis and acute inflammatory responses. Moreover, these OMVs have an immense capacity to be applied in medical research, such as OMV-based vaccines and drug delivery. This review presents a comprehensive overview of emerging knowledge about biogenesis, the role, and application of these bacterial-derived OMVs, including OMV-based vaccines, OMV adjuvants characteristics, OMV vehicles (in conjugated vaccines), cancer immunotherapy, and drug carriers and delivery systems. Moreover, we also highlight the significance of the potential role of these OMVs in diagnosis and therapy.
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Affiliation(s)
- Saba Jalalifar
- grid.411746.10000 0004 4911 7066Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran ,grid.411705.60000 0001 0166 0922Microbial Biotechnology Research Center, University of Medical Sciences, Tehran, Iran
| | - Hassan Morovati Khamsi
- grid.418970.3Department of Quality Control, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Seyed Reza Hosseini-Fard
- grid.411705.60000 0001 0166 0922Department of Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sajad Karampoor
- grid.411746.10000 0004 4911 7066Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Bahar Bajelan
- grid.411705.60000 0001 0166 0922School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Gholamreza Irajian
- grid.411746.10000 0004 4911 7066Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran ,grid.411705.60000 0001 0166 0922Microbial Biotechnology Research Center, University of Medical Sciences, Tehran, Iran
| | - Rasoul Mirzaei
- grid.420169.80000 0000 9562 2611Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
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Bolori S, Shegefti S, Baghaei K, Yadegar A, Moon KM, Foster LJ, Nasiri MJ, Dabiri H. The Effects of Helicobacter pylori-Derived Outer Membrane Vesicles on Hepatic Stellate Cell Activation and Liver Fibrosis In Vitro. BIOMED RESEARCH INTERNATIONAL 2023; 2023:4848643. [PMID: 37090196 PMCID: PMC10116224 DOI: 10.1155/2023/4848643] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 11/05/2022] [Accepted: 03/05/2023] [Indexed: 04/25/2023]
Abstract
Introduction Helicobacter pylori is a prevalent pathogenic bacterium that resides in the human stomach. Outer membrane vesicles (OMVs) are known as nanosized cargos released by H. pylori, which have been proposed to have a key role in disease progression, pathogenesis, and modulation of the immune system. There are multiple evidences for the role of H. pylori in extragastroduodenal illnesses especially liver-related disorders. However, the precise mechanism of H. pylori extragastroduodenal pathogenesis still remains unclear. In the current study, we aimed to determine the impact of H. pylori-isolated OMVs on hepatic stellate cell (HSC) activation and expression of liver fibrosis markers. Materials and Methods Five H. pylori clinical strains with different genotype profiles were used. Helicobacter pylori OMVs were isolated using ultracentrifugation and were analyzed by scanning electron microscopy (SEM) and dynamic light scattering (DLS). Liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) analysis was applied to determine protein components of H. pylori-derived OMVs. Cell viability of LX-2 human hepatic stellate cell line exposed to OMVs was measured by MTT assay. LX-2 cells were treated with OMVs for 24 h. The gene expression of α-SMA, E-cadherin, vimentin, snail, and β-catenin was analyzed using quantitative real-time PCR. The protein expression of α-SMA, as a well-studied profibrotic marker, was evaluated with immunocytochemistry. Results Our results showed that H. pylori strains released round shape nanovesicles ranging from 50 to 500 nm. Totally, 112 various proteins were identified in OMVs by proteomic analysis. The isolated OMVs were negative for both CagA and VacA virulence factors. Treatment of HSCs with H. pylori-derived OMVs significantly increased the expression of fibrosis markers. Conclusions In conclusion, the present study demonstrated that H. pylori-derived OMVs could promote HSC activation and induce the expression of hepatic fibrosis markers. Further research is required to elucidate the definite role of H. pylori-derived OMVs in liver fibrosis and liver-associated disorders.
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Affiliation(s)
- Shahin Bolori
- Microbiology Department, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saina Shegefti
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kaveh Baghaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorder Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Yadegar
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kyung-Mee Moon
- Department of Biochemistry & Molecular Biology, Michael Smith Laboratories, University of British Columbia, Canada
| | - Leonard J. Foster
- Department of Biochemistry & Molecular Biology, Michael Smith Laboratories, University of British Columbia, Canada
| | - Mohammad Javad Nasiri
- Microbiology Department, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Dabiri
- Microbiology Department, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Abstract
This review focuses on nonlytic outer membrane vesicles (OMVs), a subtype of bacterial extracellular vesicles (BEVs) produced by Gram-negative organisms focusing on the mechanisms of their biogenesis, cargo, and function. Throughout, we highlight issues concerning the characterization of OMVs and distinguishing them from other types of BEVs. We also highlight the shortcomings of commonly used methodologies for the study of BEVs that impact the interpretation of their functionality and suggest solutions to standardize protocols for OMV studies.
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Affiliation(s)
| | - Simon R. Carding
- Quadram Institute Bioscience, Norwich, United Kingdom
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom
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Han L, Shu X, Wang J. Helicobacter pylori-Mediated Oxidative Stress and Gastric Diseases: A Review. Front Microbiol 2022; 13:811258. [PMID: 35211104 PMCID: PMC8860906 DOI: 10.3389/fmicb.2022.811258] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 01/10/2022] [Indexed: 12/12/2022] Open
Abstract
Gastric cancer is considered to be a type of gastrointestinal tumor and is mostly accompanied by Helicobacter pylori (HP) infection at the early stage. Hence, the long-term colonization of the gastric mucosa by HP as a causative factor for gastrointestinal diseases cannot be ignored. The virulence factors secreted by the bacterium activate the signaling pathway of oxidative stress and mediate chronic inflammatory response in the host cells. The virulence factors also thwart the antibacterial effect of neutrophils. Subsequently, DNA methylation is induced, which causes continuous cell proliferation and evolution toward low-grade-differentiated gastric cells. This process provides the pathological basis for the occurrence of progressive gastric cancer. Therefore, this review aims to summarize the oxidative stress response triggered by HP in the gastric mucosa and the subsequent signaling pathways. The findings are expected to help in the formulation of new targeted drugs for preventing the occurrence of early gastric cancer and its progression to middle and advanced cancer.
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Affiliation(s)
- Lu Han
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xu Shu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jian Wang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
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Jiang J, Mei J, Ma Y, Jiang S, Zhang J, Yi S, Feng C, Liu Y, Liu Y. Tumor hijacks macrophages and microbiota through extracellular vesicles. EXPLORATION (BEIJING, CHINA) 2022; 2:20210144. [PMID: 37324578 PMCID: PMC10190998 DOI: 10.1002/exp.20210144] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/16/2021] [Indexed: 06/17/2023]
Abstract
The tumor microenvironment (TME) is a biological system with sophisticated constituents. In addition to tumor cells, tumor-associated macrophages (TAMs) and microbiota are also dominant components. The phenotypic and functional changes of TAMs are widely considered to be related to most tumor progressions. The chronic colonization of pathogenic microbes and opportunistic pathogens accounts for the generation and development of tumors. As messengers of cell-to-cell communication, tumor-derived extracellular vesicles (TDEVs) can transfer various malignant factors, regulating physiological and pathological changes in the recipients and affecting TAMs and microbes in the TME. Despite the new insights into tumorigenesis and progress brought by the above factors, the crosstalk among tumor cells, macrophages, and microbiota remain elusive, and few studies have focused on how TDEVs act as an intermediary. We reviewed how tumor cells recruit and domesticate macrophages and microbes through extracellular vehicles and how hijacked macrophages and microbiota interact with tumor-promoting feedback, achieving a reciprocal coexistence under the TME and working together to facilitate tumor progression. It is significant to seek evidence to clarify those specific interactions and reveal therapeutic targets to curb tumor progression and improve prognosis.
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Affiliation(s)
- Jipeng Jiang
- Postgraduate SchoolMedical School of Chinese PLABeijingP. R. China
- Department of Thoracic SurgeryThe First Medical Center of Chinese PLA General HospitalBeijingP. R. China
| | - Jie Mei
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology of ChinaBeijingP. R. China
- University of Chinese Academy of ScienceBeijingP. R. China
| | - Yongfu Ma
- Department of Thoracic SurgeryThe First Medical Center of Chinese PLA General HospitalBeijingP. R. China
| | - Shasha Jiang
- Postgraduate SchoolMedical School of Chinese PLABeijingP. R. China
- Department of Thoracic SurgeryThe First Medical Center of Chinese PLA General HospitalBeijingP. R. China
| | - Jian Zhang
- Department of Thoracic SurgeryThe First Medical Center of Chinese PLA General HospitalBeijingP. R. China
| | - Shaoqiong Yi
- Department of Thoracic SurgeryThe First Medical Center of Chinese PLA General HospitalBeijingP. R. China
| | - Changjiang Feng
- Department of Thoracic SurgeryThe First Medical Center of Chinese PLA General HospitalBeijingP. R. China
| | - Yang Liu
- Postgraduate SchoolMedical School of Chinese PLABeijingP. R. China
- Department of Thoracic SurgeryThe First Medical Center of Chinese PLA General HospitalBeijingP. R. China
| | - Ying Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology of ChinaBeijingP. R. China
- GBA National Institute for Nanotechnology InnovationGuangdongP. R. China
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11
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Jiang J, Mei J, Yi S, Feng C, Ma Y, Liu Y, Liu Y, Chen C. Tumor associated macrophage and microbe: The potential targets of tumor vaccine delivery. Adv Drug Deliv Rev 2022; 180:114046. [PMID: 34767863 DOI: 10.1016/j.addr.2021.114046] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 10/29/2021] [Accepted: 11/04/2021] [Indexed: 02/08/2023]
Abstract
The occurrence and development of tumors depend on the tumor microenvironment (TME), which is made of various immune cells, activated fibroblasts, basement membrane, capillaries, and extracellular matrix. Tumor associated macrophages (TAMs) and microbes are important components in TME. Tumor cells can recruit and educate TAMs and microbes, and the hijacked TAMs and microbes can promote the progression of tumor reciprocally. Tumor vaccine delivery remodeling TME by targeting TAM and microbes can not only enhance the specificity and immunogenicity of antigens, but also contribute to the regulation of TME. Tumor vaccine design benefits from nanotechnology which is a suitable platform for antigen and adjuvant delivery to catalyze new candidate vaccines applying to clinical therapy at unparalleled speed. In view of the characteristics and mechanisms of TME development, vaccine delivery targeting and breaking the malignant interactions among tumor cells, TAMs, and microbes may serve as a novel strategy for tumor therapy.
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12
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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] [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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13
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Gilmore WJ, Johnston EL, Zavan L, Bitto NJ, Kaparakis-Liaskos M. Immunomodulatory roles and novel applications of bacterial membrane vesicles. Mol Immunol 2021; 134:72-85. [PMID: 33725501 DOI: 10.1016/j.molimm.2021.02.027] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/15/2021] [Accepted: 02/24/2021] [Indexed: 12/19/2022]
Abstract
Bacteria release extracellular vesicles (EVs) known as bacterial membrane vesicles (BMVs) during their normal growth. Gram-negative bacteria produce BMVs termed outer membrane vesicles (OMVs) that are composed of a range of biological cargo and facilitate numerous bacterial functions, including promoting pathogenesis and mediating disease in the host. By contrast, less is understood about BMVs produced by Gram-positive bacteria, which are referred to as membrane vesicles (MVs), however their contribution to mediating bacterial pathogenesis has recently become evident. In this review, we summarise the mechanisms whereby BMVs released by Gram-negative and Gram-positive bacteria are produced, in addition to discussing their key functions in promoting bacterial survival, mediating pathogenesis and modulating host immune responses. Furthermore, we discuss the mechanisms whereby BMVs produced by both commensal and pathogenic organisms can enter host cells and interact with innate immune receptors, in addition to how they modulate host innate and adaptive immunity to promote immunotolerance or drive the onset and progression of disease. Finally, we highlight current and emerging applications of BMVs in vaccine design, biotechnology and cancer therapeutics.
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Affiliation(s)
- William J Gilmore
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, VIC, Australia; Research Centre for Extracellular Vesicles, School of Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Ella L Johnston
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, VIC, Australia; Research Centre for Extracellular Vesicles, School of Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Lauren Zavan
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, VIC, Australia; Research Centre for Extracellular Vesicles, School of Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Natalie J Bitto
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, VIC, Australia; Research Centre for Extracellular Vesicles, School of Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Maria Kaparakis-Liaskos
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, VIC, Australia; Research Centre for Extracellular Vesicles, School of Molecular Science, La Trobe University, Melbourne, VIC, Australia.
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14
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Abstract
The release of extracellular vesicles (EVs) is a process conserved across the three domains of life. Amongst prokaryotes, EVs produced by Gram-negative bacteria, termed outer membrane vesicles (OMVs), were identified more than 50 years ago and a wealth of literature exists regarding their biogenesis, composition and functions. OMVs have been implicated in benefiting numerous metabolic functions of their parent bacterium. Additionally, OMVs produced by pathogenic bacteria have been reported to contribute to pathology within the disease setting. By contrast, the release of EVs from Gram-positive bacteria, known as membrane vesicles (MVs), has only been widely accepted within the last decade. As such, there is a significant disproportion in knowledge regarding MVs compared to OMVs. Here we provide an overview of the literature regarding bacterial membrane vesicles (BMVs) produced by pathogenic and commensal bacteria. We highlight the mechanisms of BMV biogenesis and their roles in assisting bacterial survival, in addition to discussing their functions in promoting disease pathologies and their potential use as novel therapeutic strategies.
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Affiliation(s)
- William J Gilmore
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, VIC, Australia
- Research Centre for Extracellular Vesicles, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Natalie J Bitto
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, VIC, Australia
- Research Centre for Extracellular Vesicles, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Maria Kaparakis-Liaskos
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, VIC, Australia.
- Research Centre for Extracellular Vesicles, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia.
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15
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Helicobacter pylori-Derived Outer Membrane Vesicles (OMVs): Role in Bacterial Pathogenesis? Microorganisms 2020; 8:microorganisms8091328. [PMID: 32878302 PMCID: PMC7564109 DOI: 10.3390/microorganisms8091328] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 08/24/2020] [Accepted: 08/31/2020] [Indexed: 01/06/2023] Open
Abstract
Persistent infections with the human pathogen Helicobacter pylori (H. pylori) have been closely associated with the induction and progression of a wide range of gastric disorders, including acute and chronic gastritis, ulceration in the stomach and duodenum, mucosa-associated lymphoid tissue (MALT) lymphoma, and gastric adenocarcinoma. The pathogenesis of H. pylori is determined by a complicated network of manifold mechanisms of pathogen–host interactions, which involves a coordinated interplay of H. pylori pathogenicity and virulence factors with host cells. While these molecular and cellular mechanisms have been intensively investigated to date, the knowledge about outer membrane vesicles (OMVs) derived from H. pylori and their implication in bacterial pathogenesis is not well developed. In this review, we summarize the current knowledge on H. pylori-derived OMVs.
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16
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Huang T, Song C, Zheng L, Xia L, Li Y, Zhou Y. The roles of extracellular vesicles in gastric cancer development, microenvironment, anti-cancer drug resistance, and therapy. Mol Cancer 2019; 18:62. [PMID: 30925929 PMCID: PMC6441168 DOI: 10.1186/s12943-019-0967-5] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 02/21/2019] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer (GC) is one of the leading causes of cancer-related death in both men and women due to delayed diagnosis and high metastatic frequency. Extracellular vesicles (EVs) are membrane-bound nanovesicles which are released by cells into body fluids such as plasma, saliva, breast milk, cerebrospinal fluid, semen, urine, lymphatic fluid, amniotic fluid, sputum and synovial fluid. EVs deliver almost all types of biomolecules such as proteins, nucleic acids, metabolites, and even pharmacological compounds. These bioactive molecules can be delivered to recipient cells to influence their biological properties, modify surrounding microenvironment and distant targets. The extensive exploration of EVs enhances our comprehension of GC biology referring to tumor growth, metastasis, immune response and evasion, chemoresistance and treatment. In this review, we will sum up the effects of GC-derived EVs to the tumor microenvironment. Moreover, we will also summarize the function of microenvironment-derived EVs in GC and discuss how the bidirectional communication between tumor and microenvironment affect GC growth, metastatic behavior, immune response, and drug resistance. At last, we prospect the clinical application viewpoint of EVs in GC.
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Affiliation(s)
- Tingting Huang
- Department of Clinical Laboratory Medicine, Shenzhen Hospital, Southern Medical University, No. 1333, Xinhu Road, Baoan District, Shenzhen, 518020, Guangdong, People's Republic of China.
| | - Chunli Song
- Department of Clinical Laboratory Medicine, Shenzhen Hospital, Southern Medical University, No. 1333, Xinhu Road, Baoan District, Shenzhen, 518020, Guangdong, People's Republic of China
| | - Lei Zheng
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, No.1838 North Guangzhou Avenue, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Ligang Xia
- Department of Gastrointestinal Surgery, Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, 518020, Guangdong, People's Republic of China
| | - Yang Li
- Department of Gastrointestinal Surgery, Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, 518020, Guangdong, People's Republic of China.
| | - Yiwen Zhou
- Department of Clinical Laboratory Medicine, Shenzhen Hospital, Southern Medical University, No. 1333, Xinhu Road, Baoan District, Shenzhen, 518020, Guangdong, People's Republic of China.
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17
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Abstract
Outer membrane vesicles (OMVs) are nanosized proteoliposomes derived from the outer membrane of Gram-negative bacteria. They are ubiquitously produced both in culture and during infection and are now recognized to play crucial roles during host-microbe interactions. OMVs can transport a broad range of chemically diverse cargoes, including lipids and lipopolysaccharides, membrane-embedded and associated proteins and small molecules, peptidoglycan, and nucleic acids. Particularly, virulence factors such as adhesins and toxins are often enriched in OMVs. Here we discuss a variety of ways in which OMVs facilitate host-microbe interactions, including their contributions to biofilm formation, nutrient scavenging, and modulation of host cell function. We particularly examine recent findings regarding OMV-host cell interactions in the oral cavity and the gastrointestinal tract.
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18
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Cai W, Kesavan DK, Wan J, Abdelaziz MH, Su Z, Xu H. Bacterial outer membrane vesicles, a potential vaccine candidate in interactions with host cells based. Diagn Pathol 2018; 13:95. [PMID: 30537996 PMCID: PMC6290530 DOI: 10.1186/s13000-018-0768-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 11/07/2018] [Indexed: 02/07/2023] Open
Abstract
Both Gram-Positive and Gram-Negative bacteria can secrete outer membrane vesicles (OMVs) in their growth and metabolism process. Originally, OMVs were considered as a by-product of bacterial merisis. However, many scientists have reported the important role of OMVs in many fields recently. In this review, we briefly introduce OMVs biological functions and then summarize the findings about the OMVs interactions with host cells. At last, we will make an expectation about the prospects of the application of OMVs as vaccines.
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Affiliation(s)
- Wei Cai
- Department of Immunology, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | | | - Jie Wan
- Department of Immunology, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | | | - Zhaoliang Su
- Department of Immunology, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.,The Central Laboratory, the Fourth Affiliated of Jiangsu University, Zhenjiang, 212001, China
| | - Huaxi Xu
- Department of Immunology, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.
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19
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Avila-Calderón ED, Otero-Olarra JE, Flores-Romo L, Peralta H, Aguilera-Arreola MG, Morales-García MR, Calderón-Amador J, Medina-Chávez O, Donis-Maturano L, Ruiz-Palma MDS, Contreras-Rodríguez A. The Outer Membrane Vesicles of Aeromonas hydrophila ATCC ® 7966 TM: A Proteomic Analysis and Effect on Host Cells. Front Microbiol 2018; 9:2765. [PMID: 30519218 PMCID: PMC6250952 DOI: 10.3389/fmicb.2018.02765] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 10/29/2018] [Indexed: 01/26/2023] Open
Abstract
Gram-negative bacteria release outer membrane vesicles (OMVs) into the extracellular environment. OMVs have been studied extensively in bacterial pathogens, however, information related with the composition of Aeromonas hydrophila OMVs is missing. In this study we analyzed the composition of purified OMVs from A. hydrophila ATCC® 7966TM by proteomics. Also we studied the effect of OMVs on human peripheral blood mononuclear cells (PBMCs). Vesicles were grown in agar plates and then purified through ultracentrifugation steps. Purified vesicles showed an average diameter of 90-170 nm. Moreover, 211 unique proteins were found in OMVs from A. hydrophila; some of them are well-known as virulence factors such as: haemolysin Ahh1, RtxA toxin, extracellular lipase, HcpA protein, among others. OMVs from A. hydrophila ATCC® 7966TM induced lymphocyte activation and apoptosis in monocytes, as well as over-expression of pro-inflammatory cytokines. This work contributed to the knowledge of the composition of the vesicles of A. hydrophila ATCC® 7966TM and their interaction with the host cell.
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Affiliation(s)
- Eric Daniel Avila-Calderón
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Jorge Erick Otero-Olarra
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Leopoldo Flores-Romo
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Humberto Peralta
- Programa de Genómica Funcional de Procariotes, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Ma. Guadalupe Aguilera-Arreola
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | | | - Juana Calderón-Amador
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Olin Medina-Chávez
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Luis Donis-Maturano
- Departamento de Innovación Biomédica, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Mexico
| | - María del Socorro Ruiz-Palma
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
- División Químico-Biológicas, Universidad Tecnológica de Tecámac, Tecámac, Mexico
| | - Araceli Contreras-Rodríguez
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
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20
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Zhang X, Liu CJ. Immune response and immune escape mechanism in Helicobacter pylori infection. Shijie Huaren Xiaohua Zazhi 2018; 26:1832-1842. [DOI: 10.11569/wcjd.v26.i31.1832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori (H. pylori) is a Gram-negative bacterium which is parasitic on the surface of the gastric mucosa, and it is a causative agent in the development of chronic gastritis, gastric and duodenal peptic ulcer, gastric adenocarcinoma, and lymphoid tissue lymphoma associated with the gastric mucosa. After H. pylori infection, the bacterium is first recognized by the pattern recognition receptors of immune cells, which in turn causes the innate immune and adaptive immune responses, but these responses are usually insufficient to eliminate bacterial infections. H. pylori can evade the identification and clearance by the immune system by modifying and attenuating the immunogenicity of its pathogen-associated molecular patterns, regulating the immune responses of innate immune cells and T cells, and leading to persistent infection. A thorough understanding of the immune response and immune escape mechanism in H. pylori infection is of great significance for eliminating H. pylori infection and controlling the occurrence of H. pylori infection-related diseases.
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Affiliation(s)
- Xin Zhang
- Department of Pharmacy and Pharmacology, the Fourth Medical Center of the PLA General Hospital, Beijing 100048, China,Institute of Biotechnology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Chun-Jie Liu
- Institute of Biotechnology, Academy of Military Medical Sciences, Beijing 100071, China
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21
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Bravo D, Hoare A, Soto C, Valenzuela MA, Quest AFG. Helicobacter pylori in human health and disease: Mechanisms for local gastric and systemic effects. World J Gastroenterol 2018; 24:3071-3089. [PMID: 30065554 PMCID: PMC6064966 DOI: 10.3748/wjg.v24.i28.3071] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/17/2018] [Accepted: 06/27/2018] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori (H. pylori) is present in roughly 50% of the human population worldwide and infection levels reach over 70% in developing countries. The infection has classically been associated with different gastro-intestinal diseases, but also with extra gastric diseases. Despite such associations, the bacterium frequently persists in the human host without inducing disease, and it has been suggested that H. pylori may also play a beneficial role in health. To understand how H. pylori can produce such diverse effects in the human host, several studies have focused on understanding the local and systemic effects triggered by this bacterium. One of the main mechanisms by which H. pylori is thought to damage the host is by inducing local and systemic inflammation. However, more recently, studies are beginning to focus on the effects of H. pylori and its metabolism on the gastric and intestinal microbiome. The objective of this review is to discuss how H. pylori has co-evolved with humans, how H. pylori presence is associated with positive and negative effects in human health and how inflammation and/or changes in the microbiome are associated with the observed outcomes.
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Affiliation(s)
- Denisse Bravo
- Oral Microbiology Laboratory, Pathology and Oral Medicine Department, Faculty of Dentistry, Universidad de Chile, Santiago 8380492, Chile
| | - Anilei Hoare
- Oral Microbiology Laboratory, Pathology and Oral Medicine Department, Faculty of Dentistry, Universidad de Chile, Santiago 8380492, Chile
| | - Cristopher Soto
- Oral Microbiology Laboratory, Pathology and Oral Medicine Department, Faculty of Dentistry, Universidad de Chile, Santiago 8380492, Chile
| | - Manuel A Valenzuela
- Advanced Center for Chronic Diseases, Institute for Health-Related Research and Innovation, Faculty of Health Sciences, Universidad Central de Chile, Santiago 8380447, Chile
| | - Andrew FG Quest
- Advanced Center for Chronic Diseases, Center for Studies on Exercise, Metabolism and Cancer, Biomedical Science Institute, Faculty of Medicine, Universidad de Chile, Santiago 8380447, Chile
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22
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Polakovicova I, Jerez S, Wichmann IA, Sandoval-Bórquez A, Carrasco-Véliz N, Corvalán AH. Role of microRNAs and Exosomes in Helicobacter pylori and Epstein-Barr Virus Associated Gastric Cancers. Front Microbiol 2018; 9:636. [PMID: 29675003 PMCID: PMC5895734 DOI: 10.3389/fmicb.2018.00636] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 03/19/2018] [Indexed: 12/17/2022] Open
Abstract
Emerging evidence suggests that chronic inflammation caused by pathogen infection is connected to the development of various types of cancer. It is estimated that up to 20% of all cancer deaths is linked to infections and inflammation. In gastric cancer, such triggers can be infection of the gastric epithelium by either Helicobacter pylori (H. pylori), a bacterium present in half of the world population; or by Epstein-Barr virus (EBV), a double-stranded DNA virus which has recently been associated with gastric cancer. Both agents can establish lifelong inflammation by evolving to escape immune surveillance and, under certain conditions, contribute to the development of gastric cancer. Non-coding RNAs, mainly microRNAs (miRNAs), influence the host innate and adaptive immune responses, though long non-coding RNAs and viral miRNAs also alter these processes. Reports suggest that chronic infection results in altered expression of host miRNAs. In turn, dysregulated miRNAs modulate the host inflammatory immune response, favoring bacterial survival and persistence within the gastric mucosa. Given the established roles of miRNAs in tumorigenesis and innate immunity, they may serve as an important link between H. pylori- and EBV-associated inflammation and carcinogenesis. Example of this is up-regulation of miR-155 in H. pylori and EBV infection. The tumor environment contains a variety of cells that need to communicate with each other. Extracellular vesicles, especially exosomes, allow these cells to deliver certain type of information to other cells promoting cancer growth and metastasis. Exosomes have been shown to deliver not only various types of genetic information, mainly miRNAs, but also cytotoxin-associated gene A (CagA), a major H. pylori virulence factor. In addition, a growing body of evidence demonstrates that exosomes contain genetic material of viruses and viral miRNAs and proteins such as EBV latent membrane protein 1 (LMP1) which are delivered into recipient cells. In this review, we focus on the dysregulated H. pylori- and EBV-associated miRNAs while trying to unveil possible causal mechanisms. Moreover, we discuss the role of exosomes as vehicles for miRNA delivery in H. pylori- and EBV-related carcinogenesis.
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Affiliation(s)
- Iva Polakovicova
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile.,UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Hematology-Oncology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Sofia Jerez
- Department of Hematology-Oncology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ignacio A Wichmann
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile.,UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Hematology-Oncology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - Nicolás Carrasco-Véliz
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alejandro H Corvalán
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile.,UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Hematology-Oncology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
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