ArticleBMC microbiology2020
Probiotic Escherichia coli Nissle 1917-derived outer membrane vesicles enhance immunomodulation and antimicrobial activity in RAW264.7 macrophages.
Article in BMC microbiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.
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Who cites it
70 citing papers in PubMed, 104 citations in OpenAlex.
- Probiotic extracellular vesicles reprogram macrophage immunometabolism: From gut crosstalk to host health.Gut microbes · 2026Review
- Gram-Positive and Gram-Negative Probiotic Extracellular Vesicles: Mechanisms of Immune Modulation and Therapeutic Opportunities in Atopic Dermatitis.Clinical reviews in allergy & immunology · 2026Review
- Postbiotics and Paraprobiotics as Next-Generation Gut Microbiome Modulators in Sustainable Aquaculture Health.Antibiotics (Basel, Switzerland) · 2026Review
- Engineered outer membrane vesicle-like nanoparticles from Lactobacillus plantarum for oral IL-22 mRNA delivery and treatment of DSS-induced colitis.Molecular and cellular biochemistry · 2026Article
- Bacterial Extracellular Vesicles at the Crossroads of Immune Regulation and Biofilm Dynamics: Biogenesis, Comparative Analysis, and Translational Challenges.Biomolecules · 2026Review
- Extracellular Vesicles fromPathogens (Basel, Switzerland) · 2026Article
- Review
- Exploring the Role of E. Coli Nissle 1917 Postbiotics as Antimicrobial and Antioxidant Agents for Enhancing Buffalo Sperm Quality.Probiotics and antimicrobial proteins · 2026Article
- Construction of an engineered Escherichia coli strain with enhanced intestinal colonization and anti-inflammatory efficacy in colitis.Cellular & molecular immunology · 2026Article
- Escherichia coli Nissle 1917 alleviates Alzheimer's disease in mice through OmpA-containing outer membrane vesicles.Cell reports. Medicine · 2026Article
- Membrane Vesicles from Lacticaseibacillus Casei BL23 Exhibit Antimicrobial Activity Against Escherichia coli and Immunostimulatory Effects on Human Peripheral Blood Mononuclear Cells.Advanced healthcare materials · 2026Article
- Gut Microbiota Dysbiosis and LPS/NLRP3/GSDMD Pyroptosis Drive Hepatic Fibrosis: Therapeutic Potential of a Synbiotic Intervention.Probiotics and antimicrobial proteins · 2026Article
- Membrane Vesicles fromInternational journal of molecular sciences · 2026Article
- Strain-Specific microRNA Reprogramming of Human Dendritic Cells by Probiotic and CommensalMicroorganisms · 2026Article
- Clinical features ofFrontiers in cellular and infection microbiology · 2026Article
- Towards a safer probiotic:Frontiers in cellular and infection microbiology · 2026Article
- Current and emerging approaches to manage chronic inflammatory gut disorders.Frontiers in cellular and infection microbiology · 2026Review
- Article
- Immunomodulatory properties of probiotic extracellular vesicles- do they have the potential to fill the gap in therapeutic strategies for allergies?Cell communication and signaling : CCS · 2025Review
- The Role of the Microbiome in the Resolution of Infection-Induced Inflammation.ACS infectious diseases · 2025Review
10 more citing papers are in PubMed but not listed here.
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundProbiotic Escherichia coli Nissle 1917 (EcN) has been widely studied for the treatment of intestinal inflammatory diseases and infectious diarrhea, but the mechanisms by which they communicate with the host are not well-known. Outer membrane vesicles (OMVs) are produced by Gram-negative bacteria and deliver microbial molecules to distant target cells in the host, which play a very important role in mediating bacteria-host communication. Here, we aimed to investigate whether EcN-derived OMVs (EcN_OMVs) could mediate immune regulation in macrophages.
resultsIn this study, after the characterization of EcN_OMVs using electron microscopy, nanoparticle tracking and proteomic analyses, we demonstrated by confocal fluorescence microscopy that EcN_OMVs could be internalized by RAW 264.7 macrophages. Stimulation with EcN_OMVs at appropriate concentrations promoted proliferation, immune-related enzymatic activities and phagocytic functions of RAW264.7 cells. Moreover, EcN_OMVs induced more anti-inflammatory responses (IL-10) than pro-inflammatory responses (IL-6 and TNF-α) in vitro, and also modulated the production of Th1-polarizing cytokine (IL-12) and Th2-polarizing cytokine (IL-4). Treatments with EcN_OMVs effectively improved the antibacterial activity of RAW 264.7 macrophages.
conclusionsThese findings indicated that EcN_OMVs could modulate the functions of the host immune cells, which will enrich the existing body of knowledge of EVs as an important mechanism for the communication of probiotics with their hosts.
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