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Garcia-Castillo V, Marcial G, Albarracín L, Tomokiyo M, Clua P, Takahashi H, Kitazawa H, Garcia-Cancino A, Villena J. The Exopolysaccharide of Lactobacillus fermentum UCO-979C Is Partially Involved in Its Immunomodulatory Effect and Its Ability to Improve the Resistance against Helicobacter pylori Infection. Microorganisms 2020; 8:microorganisms8040479. [PMID: 32230910 PMCID: PMC7232353 DOI: 10.3390/microorganisms8040479] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/18/2020] [Accepted: 03/22/2020] [Indexed: 02/07/2023] Open
Abstract
Lactobacillus fermentum UCO-979C (Lf979C) beneficially modulates the cytokine response of gastric epithelial cells and macrophages after Helicobacter pylori infection in vitro. Nevertheless, no in vivo studies were performed with this strain to confirm its beneficial immunomodulatory effects. This work evaluated whether Lf979C improves protection against H. pylori infection in mice by modulating the innate immune response. In addition, we evaluated whether its exopolysaccharide (EPS) was involved in its beneficial effects. Lf979C significantly reduced TNF-α, IL-8, and MCP-1 and augmented IFN-γ and IL-10 in the gastric mucosa of H. pylori-infected mice. The differential cytokine profile induced by Lf979C in H. pylori-infected mice correlated with an improved reduction in the pathogen gastric colonization and protection against inflammatory damage. The purified EPS of Lf979C reduced IL-8 and enhanced IL-10 levels in the gastric mucosa of infected mice, while no effect was observed for IFN-γ. This work demonstrates for the first time the in vivo ability of Lf979C to increase resistance against H. pylori infection by modulating the gastric innate immune response. In addition, we advanced knowledge of the mechanisms involved in the beneficial effects of Lf979C by demonstrating that its EPS is partially responsible for its immunomodulatory effect.
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Affiliation(s)
- Valeria Garcia-Castillo
- Laboratory of Bacterial Pathogenicity, Faculty of Biological Sciences, University of Concepcion, Concepcion Bio Bio 4030000, Chile;
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman CP4000, Argentina; (G.M.); (L.A.); (P.C.)
- Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan;
| | - Guillermo Marcial
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman CP4000, Argentina; (G.M.); (L.A.); (P.C.)
| | - Leonardo Albarracín
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman CP4000, Argentina; (G.M.); (L.A.); (P.C.)
- Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan;
- Laboratory of Computing Science. Faculty of Exact Sciences and Technology. Tucuman University, Tucuman CP4000, Argentina
| | - Mikado Tomokiyo
- Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan;
| | - Patricia Clua
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman CP4000, Argentina; (G.M.); (L.A.); (P.C.)
| | - Hideki Takahashi
- Laboratory of Plant Pathology, Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan;
- Plant Immunology Unit, International Education and Research Centre for Food and Agricultural Immunology (CFAI), Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan
| | - Haruki Kitazawa
- Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan;
- Livestock Immunology Unit, International Education and Research Center for Food and Agricultural Immunology (CFAI), Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan
- Correspondence: (H.K.); (A.G.-C.); (J.V.)
| | - Apolinaria Garcia-Cancino
- Laboratory of Bacterial Pathogenicity, Faculty of Biological Sciences, University of Concepcion, Concepcion Bio Bio 4030000, Chile;
- Correspondence: (H.K.); (A.G.-C.); (J.V.)
| | - Julio Villena
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman CP4000, Argentina; (G.M.); (L.A.); (P.C.)
- Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan;
- Correspondence: (H.K.); (A.G.-C.); (J.V.)
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Garcia-Castillo V, Marín-Vega AM, Ilabaca A, Albarracín L, Marcial G, Kitazawa H, Garcia-Cancino A, Villena J. Characterization of the immunomodulatory and anti- Helicobacter pylori properties of the human gastric isolate Lactobacillus rhamnosus UCO-25A. BIOFOULING 2019; 35:922-937. [PMID: 31646895 DOI: 10.1080/08927014.2019.1675153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 09/27/2019] [Indexed: 06/10/2023]
Abstract
The ability to form biofilms and the potential immunomodulatory properties of the human gastric isolate Lactobacillus rhamnosus UCO-25A were characterized in vitro. It was demonstrated that L. rhamnosus UCO-25A is able to form biofilms on abiotic and cell surfaces, and to modulate the inflammatory response triggered by Helicobacter pylori infection in gastric epithelial cells and THP-1 macrophages. L. rhamnosus UCO-25A exhibited a substantial anti-inflammatory effect in both cell lines and improved IL-10 levels produced by challenged macrophages. Additionally, UCO-25A protected AGS cells against H. pylori infection with a higher pathogen inhibition when a biofilm was formed. Given the importance of inflammation in H. pylori-mediated diseases, the differential modulation of the inflammatory response in the gastric mucosa by an autochthonous strain is an attractive alternative for improving H. pylori eradication and reducing the severity of the diseases that arise from the resulting chronic inflammation.
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Affiliation(s)
- Valeria Garcia-Castillo
- Laboratory of Bacterial Pathogenicity, Faculty of Biological Sciences, University of Concepcion, Concepcion, Chile
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman, Argentina
- Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Ana María Marín-Vega
- Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Alejandra Ilabaca
- Laboratory of Bacterial Pathogenicity, Faculty of Biological Sciences, University of Concepcion, Concepcion, Chile
| | - Leonardo Albarracín
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman, Argentina
- Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
- Laboratory of Computing Science, Faculty of Exact Sciences and Technology, Tucuman University, Tucuman, Argentina
| | - Guillermo Marcial
- Laboratory of Technology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman, Argentina
| | - Haruki Kitazawa
- Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
- International Education and Research Center for Food and Agricultural Immunology (CFAI), Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Apolinaria Garcia-Cancino
- Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Julio Villena
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman, Argentina
- Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
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Garcia-Castillo V, Zelaya H, Ilabaca A, Espinoza-Monje M, Komatsu R, Albarracín L, Kitazawa H, Garcia-Cancino A, Villena J. Lactobacillus fermentum UCO-979C beneficially modulates the innate immune response triggered by Helicobacter pylori infection in vitro. Benef Microbes 2018; 9:829-841. [PMID: 29798705 DOI: 10.3920/bm2018.0019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Helicobacter pylori infection is associated with important gastric pathologies. An aggressive proinflammatory immune response is generated in the gastric tissue infected with H. pylori, resulting in gastritis and a series of morphological changes that increase the susceptibility to cancer development. Probiotics could present an alternative solution to prevent or decrease H. pylori infection. Among them, the use of immunomodulatory lactic acid bacteria represents a promising option to reduce the severity of chronic inflammatory-mediated tissue damage and to improve protective immunity against H. pylori. We previously isolated Lactobacillus fermentum UCO-979C from human gastric tissue and demonstrated its capacity to reduce adhesion of H. pylori to human gastric epithelial cells (AGS cells). In this work, the ability of L. fermentum UCO-979C to modulate immune response in AGS cells and PMA phorbol 12-myristate 13-acetate (PMA)-differentiated THP-1 (human monocytic leukaemia) macrophages in response to H. pylori infection was evaluated. We demonstrated that the UCO-979C strain is able to differentially modulate the cytokine response of gastric epithelial cells and macrophages after H. pylori infection. Of note, L. fermentum UCO-979C was able to significantly reduce the production of inflammatory cytokines and chemokines in AGS and THP-1 cells as well as increase the levels of immunoregulatory cytokines, indicating a remarkable anti-inflammatory effect. These findings strongly support the probiotic potential of L. fermentum UCO-979C and provide evidence of its beneficial effects against the inflammatory damage induced by H. pylori infection. Although our findings should be proven in appropriate experiments in vivo, in both H. pylori infection animal models and human trials, the results of the present work provide a scientific rationale for the use of L. fermentum UCO-979C to prevent or reduce H. pylori-induced gastric inflammation in humans.
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Affiliation(s)
- V Garcia-Castillo
- 1 Laboratory of Bacterial Pathogenicity, Faculty of Biological Sciences, University of Concepcion, Chacabuco s/n, Concepcion, Bio Bio 4030000, Chile.,2 Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman 4000, Argentina.,3 Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai 84-0051, Japan
| | - H Zelaya
- 2 Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman 4000, Argentina
| | - A Ilabaca
- 1 Laboratory of Bacterial Pathogenicity, Faculty of Biological Sciences, University of Concepcion, Chacabuco s/n, Concepcion, Bio Bio 4030000, Chile
| | - M Espinoza-Monje
- 1 Laboratory of Bacterial Pathogenicity, Faculty of Biological Sciences, University of Concepcion, Chacabuco s/n, Concepcion, Bio Bio 4030000, Chile
| | - R Komatsu
- 2 Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman 4000, Argentina
| | - L Albarracín
- 2 Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman 4000, Argentina.,3 Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai 84-0051, Japan.,5 Laboratory of Computing Science, Faculty of Exact Sciences and Technology, Tucuman University, Av. Independencia 1800, Tucuman 4000, Argentina
| | - H Kitazawa
- 3 Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai 84-0051, Japan.,4 International Education and Research Center for Food and Agricultural Immunology (CFAI), Graduate School of Agricultural Science, Tohoku University, Sendai 984-0051, Japan
| | - A Garcia-Cancino
- 3 Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai 84-0051, Japan
| | - J Villena
- 2 Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman 4000, Argentina.,3 Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai 84-0051, Japan
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Mejías-Luque R, Zöller J, Anderl F, Loew-Gil E, Vieth M, Adler T, Engler DB, Urban S, Browning JL, Müller A, Gerhard M, Heikenwalder M. Lymphotoxin β receptor signalling executes Helicobacter pylori-driven gastric inflammation in a T4SS-dependent manner. Gut 2017; 66:1369-1381. [PMID: 27196595 DOI: 10.1136/gutjnl-2015-310783] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 03/14/2016] [Accepted: 03/21/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Lymphotoxin β receptor (LTβR) signalling has been implicated in inflammation-associated tumour development in different tissues. We have analysed the role of LTβR and alternative NF-κB signalling in Helicobacter pylori-mediated gastric inflammation and pathology. DESIGN We analysed several ligands and receptors of the alternative NF-κB pathway, RelB, p52 nuclear translocation and target genes in tissue samples of H. pylori-infected patients with different degrees of gastritis or early gastric tumours by in situ hybridisation, immunohistochemistry, Western blot and real-time PCR analyses. Molecular mechanisms involved in LTβR activation by H. pylori were assessed in vitro using human gastric cancer cell lines and distinct H. pylori isolates. The effects of blocking or agonistically activating LTβR on gastric pathology during challenge with a human pathogenic H. pylori strain were studied in a mouse model. RESULTS Among the tested candidates, LT was significantly increased and activated alternative NF-κB signalling was observed in the gastric mucosa of H. pylori-infected patients. H. pyloriinduced LTβR-ligand expression in a type IV secretion system-dependent but CagA-independent manner, resulting in activation of the alternative NF-κB pathway, which was further enhanced by blocking canonical NF-κB during infection. Blocking LTβR signalling in vivo suppressed H. pylori-driven gastritis, whereas LTβR activation in gastric epithelial cells of infected mice induced a broadened pro-inflammatory chemokine milieu, resulting in exacerbated pathology. CONCLUSIONS LTβR-triggered activation of alternative NF-κB signalling in gastric epithelial cells executes H. pylori-induced chronic gastritis, representing a novel target to restrict gastric inflammation and pathology elicited by H. pylori, while exclusively targeting canonical NF-κB may aggravate pathology by enhancing the alternative pathway.
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Affiliation(s)
- Raquel Mejías-Luque
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Technische Universität München, Munich, Germany.,German Centre for Infection Research (DZIF), partner site Munich, Munich, Germany
| | - Jessica Zöller
- Institut für Virologie, Technische Universität München, Helmholtz Zentrum München, Neuherberg, Germany
| | - Florian Anderl
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Technische Universität München, Munich, Germany
| | - Elena Loew-Gil
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Technische Universität München, Munich, Germany
| | - Michael Vieth
- Institut für Pathologie, Klinikum Bayreuth, Bayreuth, Germany
| | - Thure Adler
- Immunology Screen, German Mouse Clinic, Helmholtz Zentrum München, Neuherberg, Germany
| | - Daniela B Engler
- Institute of Molecular Cancer Research, University of Zürich, Zürich, Switzerland
| | - Sabine Urban
- Institute of Molecular Cancer Research, University of Zürich, Zürich, Switzerland
| | | | - Anne Müller
- Institute of Molecular Cancer Research, University of Zürich, Zürich, Switzerland
| | - Markus Gerhard
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Technische Universität München, Munich, Germany.,German Centre for Infection Research (DZIF), partner site Munich, Munich, Germany
| | - Mathias Heikenwalder
- Institut für Virologie, Technische Universität München, Helmholtz Zentrum München, Neuherberg, Germany.,Division of Chronic Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
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Devi S, Ansari SA, Tenguria S, Kumar N, Ahmed N. Multipronged regulatory functions of a novel endonuclease (TieA) from Helicobacter pylori. Nucleic Acids Res 2016; 44:9393-9412. [PMID: 27550181 PMCID: PMC5100599 DOI: 10.1093/nar/gkw730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 08/11/2016] [Indexed: 12/29/2022] Open
Abstract
Helicobacter pylori portrays a classical paradigm of persistent bacterial infections. A well balanced homeostasis of bacterial effector functions and host responses is purported to be the key in achieving long term colonization in specific hosts. H. pylori nucleases have been shown to assist in natural transformation, but their role in virulence and colonization remains elusive. Therefore, it is imperative to understand the involvement of these nucleases in the pathogenesis of H. pylori. Here, we report the multifaceted role of a TNFR-1 interacting endonuclease A (TieA) from H. pylori. tieA expression is differentially regulated in response to environmental stress and post adherence to gastric epithelial cells. Studies with isogenic knockouts of tieA revealed it to be a secretory protein which translocates into the host gastric epithelial cells independent of a type IV secretion system, gets phosphorylated by DNA-PK kinase and auto-phosphorylates as serine kinase. Furthermore, TieA binds to and cleaves DNA in a non-specific manner and promotes Fas mediated apoptosis in AGS cells. Additionally, TieA induced pro-inflammatory cytokine secretion via activation of transcription factor AP-1 and signaled through MAP kinase pathway. Collectively, TieA with its multipronged and moonlighting functions could facilitate H. pylori in maintaining a balance of bacterial adaptation, and elimination by the host responses.
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Affiliation(s)
- Savita Devi
- Pathogen Biology Laboratory, Department of Biotechnology and Bioinformatics, University of Hyderabad, Gachibowli, Hyderabad 500046, India
| | - Suhail A Ansari
- Pathogen Biology Laboratory, Department of Biotechnology and Bioinformatics, University of Hyderabad, Gachibowli, Hyderabad 500046, India
| | - Shivendra Tenguria
- Pathogen Biology Laboratory, Department of Biotechnology and Bioinformatics, University of Hyderabad, Gachibowli, Hyderabad 500046, India
| | - Naveen Kumar
- Pathogen Biology Laboratory, Department of Biotechnology and Bioinformatics, University of Hyderabad, Gachibowli, Hyderabad 500046, India
| | - Niyaz Ahmed
- Pathogen Biology Laboratory, Department of Biotechnology and Bioinformatics, University of Hyderabad, Gachibowli, Hyderabad 500046, India
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