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Updated: Aug 19, 2026

Bacteriophage Removal from Infected Salmonella Cultures
Published on: June 28, 2024
The potential role of endogenous bacteriophages in controlling invading pathogens
Andrzej Górski1, Beata Weber-Dabrowska
1L. Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53114, Wroclaw, Poland. agorski@ikp.pl
Abstract:
Bacteriophages (phages) are omnipresent in our environment, and recent studies highlight their potential impact on the microbial world. Phages can also be present in mammalian organisms, including man (intestines, oral cavity, urine, sputum and serum). Data are available which suggest that those endogenous phages could play an important role in eliminating bacteria and regulating the body ecosystem. Furthermore, our most recent findings suggest that phages can exert immunosuppressive action in the gut, helping control local inflammatory and autoimmune reactions, and demonstrate anticancer activity. We hypothesize that phages could act in concert with the immune system in immunosurveillance against bacteria, viruses and cancer.
Insights
Bacteriophages (phages), viruses that infect bacteria, are found in humans and may help regulate the body
Area of Science:
- Microbiology
- Immunology
- Virology
Background:
- Bacteriophages (phages) are ubiquitous environmental microorganisms with significant ecological roles.
- Phages reside within mammalian hosts, including humans, inhabiting various body sites like the gut and oral cavity.
- Emerging research indicates endogenous phages may influence host health and microbial community dynamics.
Purpose of the Study:
- To explore the potential roles of endogenous bacteriophages in mammalian systems.
- To investigate the immunomodulatory and therapeutic capabilities of phages within the host.
- To hypothesize the synergistic interaction between phages and the host immune system.
Main Methods:
- Review of existing data on phage presence and function in mammals.
- Analysis of recent findings on phage-host interactions.
- Hypothetical modeling of phage-immune system interplay.
Main Results:
- Endogenous phages may contribute to bacterial elimination and ecosystem regulation.
- Phages exhibit potential immunosuppressive effects in the gut, aiding control of inflammation and autoimmunity.
- Evidence suggests phages possess anticancer activities.
Conclusions:
- Endogenous bacteriophages are significant components of the mammalian microbiome with diverse physiological roles.
- Phages demonstrate potential as therapeutic agents for inflammatory, autoimmune, and cancerous conditions.
- A hypothesis is proposed for phages collaborating with the immune system in host defense and immunosurveillance.
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