1
|
Carvalho AL, Fonseca S, Miquel-Clopés A, Cross K, Kok KS, Wegmann U, Gil-Cordoso K, Bentley EG, Al Katy SH, Coombes JL, Kipar A, Stentz R, Stewart JP, Carding SR. Bioengineering commensal bacteria-derived outer membrane vesicles for delivery of biologics to the gastrointestinal and respiratory tract. J Extracell Vesicles 2019; 8:1632100. [PMID: 31275534 PMCID: PMC6598475 DOI: 10.1080/20013078.2019.1632100] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 05/16/2019] [Accepted: 06/10/2019] [Indexed: 12/27/2022] Open
Abstract
Gram-negative bacteria naturally produce and secrete nanosized outer membrane vesicles (OMVs). In the human gastrointestinal tract, OMVs produced by commensal Gram-negative bacteria can mediate interactions amongst host cells (including between epithelial cells and immune cells) and maintain microbial homeostasis. This OMV-mediated pathway for host-microbe interactions could be exploited to deliver biologically active proteins to the body. To test this we engineered the Gram-negative bacterium Bacteroides thetaiotaomicron (Bt), a prominent member of the intestinal microbiota of all animals, to incorporate bacteria-, virus- and human-derived proteins into its OMVs. We then used the engineered Bt OMVs to deliver these proteins to the respiratory and gastrointestinal (GI)-tract to protect against infection, tissue inflammation and injury. Our findings demonstrate the ability to express and package both Salmonella enterica ser. Typhimurium-derived vaccine antigens and influenza A virus (IAV)-derived vaccine antigens within or on the outer membrane of Bt OMVs. These antigens were in a form capable of eliciting antigen-specific immune and antibody responses in both mucosal tissues and systemically. Furthermore, immunisation with OMVs containing the core stalk region of the IAV H5 hemagglutinin from an H5N1 strain induced heterotypic protection in mice to a 10-fold lethal dose of an unrelated subtype (H1N1) of IAV. We also showed that OMVs could express the human therapeutic protein, keratinocyte growth factor-2 (KGF-2), in a stable form that, when delivered orally, reduced disease severity and promoted intestinal epithelial repair and recovery in animals administered colitis-inducing dextran sodium sulfate. Collectively, our data demonstrates the utility and effectiveness of using Bt OMVs as a mucosal biologics and drug delivery platform technology.
Collapse
Affiliation(s)
- Ana L. Carvalho
- Gut Microbes and Health Research Programme, Quadram Institute Bioscience, Norwich, UK
| | - Sonia Fonseca
- Gut Microbes and Health Research Programme, Quadram Institute Bioscience, Norwich, UK
| | - Ariadna Miquel-Clopés
- Gut Microbes and Health Research Programme, Quadram Institute Bioscience, Norwich, UK
| | - Kathryn Cross
- Core Science Resources, Quadram Institute Bioscience, Norwich, UK
| | - Khoon-S. Kok
- Gut Microbes and Health Research Programme, Quadram Institute Bioscience, Norwich, UK
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Udo Wegmann
- Gut Microbes and Health Research Programme, Quadram Institute Bioscience, Norwich, UK
| | - Katherine Gil-Cordoso
- Gut Microbes and Health Research Programme, Quadram Institute Bioscience, Norwich, UK
- Department of Biochemistry and Biotechnology, Universitat Rovira i Virgili, Tarragona, Spain
| | | | | | - Janine L. Coombes
- Department of Infection Biology, University of Liverpool, Liverpool, UK
| | - Anja Kipar
- Instiute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Regis Stentz
- Gut Microbes and Health Research Programme, Quadram Institute Bioscience, Norwich, UK
| | - James P. Stewart
- Department of Infection Biology, University of Liverpool, Liverpool, UK
| | - Simon R. Carding
- Gut Microbes and Health Research Programme, Quadram Institute Bioscience, Norwich, UK
- Norwich Medical School, University of East Anglia, Norwich, UK
| |
Collapse
|
2
|
Al-Nedawi K, Mian MF, Hossain N, Karimi K, Mao YK, Forsythe P, Min KK, Stanisz AM, Kunze WA, Bienenstock J. Gut commensal microvesicles reproduce parent bacterial signals to host immune and enteric nervous systems. FASEB J 2014; 29:684-95. [PMID: 25392266 DOI: 10.1096/fj.14-259721] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Ingestion of a commensal bacteria, Lactobacillus rhamnosus JB-1, has potent immunoregulatory effects, and changes nerve-dependent colon migrating motor complexes (MMCs), enteric nerve function, and behavior. How these alterations occur is unknown. JB-1 microvesicles (MVs) are enriched for heat shock protein components such as chaperonin 60 heat-shock protein isolated from Escherichia coli (GroEL) and reproduce regulatory and neuronal effects in vitro and in vivo. Ingested labeled MVs were detected in murine Peyer's patch (PP) dendritic cells (DCs) within 18 h. After 3 d, PP and mesenteric lymph node DCs assumed a regulatory phenotype and increased functional regulatory CD4(+)25(+)Foxp3+ T cells. JB-1, MVs, and GroEL similarly induced phenotypic change in cocultured DCs via multiple pathways including C-type lectin receptors specific intercellular adhesion molecule-3 grabbing non-integrin-related 1 and Dectin-1, as well as TLR-2 and -9. JB-1 and MVs also decreased the amplitude of neuronally dependent MMCs in an ex vivo model of peristalsis. Gut epithelial, but not direct neuronal application of, MVs, replicated functional effects of JB-1 on in situ patch-clamped enteric neurons. GroEL and anti-TLR-2 were without effect in this system, suggesting the importance of epithelium neuron signaling and discrimination between pathways for bacteria-neuron and -immune communication. Together these results offer a mechanistic explanation of how Gram-positive commensals and probiotics may influence the host's immune and nervous systems.
Collapse
Affiliation(s)
- Khalid Al-Nedawi
- *Division of Nephrology, Departments of Medicine, Psychiatry and Behavioral Neurosciences, and Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada; and McMaster Brain-Body Institute at St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - M Firoz Mian
- *Division of Nephrology, Departments of Medicine, Psychiatry and Behavioral Neurosciences, and Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada; and McMaster Brain-Body Institute at St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Nazia Hossain
- *Division of Nephrology, Departments of Medicine, Psychiatry and Behavioral Neurosciences, and Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada; and McMaster Brain-Body Institute at St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Khalil Karimi
- *Division of Nephrology, Departments of Medicine, Psychiatry and Behavioral Neurosciences, and Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada; and McMaster Brain-Body Institute at St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Yu-Kang Mao
- *Division of Nephrology, Departments of Medicine, Psychiatry and Behavioral Neurosciences, and Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada; and McMaster Brain-Body Institute at St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Paul Forsythe
- *Division of Nephrology, Departments of Medicine, Psychiatry and Behavioral Neurosciences, and Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada; and McMaster Brain-Body Institute at St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Kevin K Min
- *Division of Nephrology, Departments of Medicine, Psychiatry and Behavioral Neurosciences, and Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada; and McMaster Brain-Body Institute at St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Andrew M Stanisz
- *Division of Nephrology, Departments of Medicine, Psychiatry and Behavioral Neurosciences, and Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada; and McMaster Brain-Body Institute at St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Wolfgang A Kunze
- *Division of Nephrology, Departments of Medicine, Psychiatry and Behavioral Neurosciences, and Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada; and McMaster Brain-Body Institute at St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - John Bienenstock
- *Division of Nephrology, Departments of Medicine, Psychiatry and Behavioral Neurosciences, and Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada; and McMaster Brain-Body Institute at St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| |
Collapse
|