INFLUENCE OF BACTERIOCINS ON THE FUNCTIONS OF INNATE IMMUNE CELLS IN VIVO AND IN VITRO
- Authors: Gein S.1,2, Polyudova T.1, Ibatullin M.1,2
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Affiliations:
- Institute of Ecology and Genetics of Microorganism, Perm Federal Research Center, Russian Academy of Sciences, Perm, Russian Federation
- Perm State University, Perm, Russian Federation
- Section: Immunological readings in Chelyabinsk
- Submitted: 31.03.2025
- Accepted: 25.05.2025
- URL: https://rusimmun.ru/jour/article/view/17145
- DOI: https://doi.org/10.46235/1028-7221-17145-IOB
- ID: 17145
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Abstract
Abstract
Aim. The aim of this study was to investigate the effect of warnerin and hominin, lantibiotics isolated from the growth media of Staphylococcus warneri and Staphylococcus hominis, respectively, as well as nisin and the synthetic polyamino acid poly-L-arginine, on the functional activity of innate immune cells in vivo and in vitro.
Materials and methods. The work investigated the lantibiotics warnerin (APD ID: AP02801), obtained from the growth medium of Staphylococcus warneri DSM 16081 bacteria, hominin, isolated from the growth media of Staphylococcus hominis GISK-284 and nisin from Lactococcus lactis (Sigma, USA), as well as a polycationic synthetic peptide with antibacterial properties - poly-L-arginine hydrochloride with a molecular weight of 5000-15000 Da (Sigma, USA).
In vivo studies were performed using peritoneal cells of white laboratory Swiss mice weighing 20-22 g. Leukocytes from the peripheral blood of healthy volunteer donors were used as an object of in vitro studies. The absorption activity of peritoneal cavity cells was assessed flow cytometry, and the production of reactive oxygen species was assessed using luminol-dependent chemiluminescence.
Results. It was found that warnerin and hominin reliably modulated ROS production in vivo. Both peptides enhanced ROS generation by peritoneal macrophages in the entire range of doses studied, nisin demonstrated a weaker stimulating effect, increasing ROS production only at a dose of 0.1 mg/kg. Warnerin in vivo had a statistically significant inhibitory effect on the absorptive activity of peritoneal cells, while hominin and nisin did not affect the percentage of phagocytosis in the entire range of doses studied. In vitro, warnerin in both spontaneous and stimulated tests at high concentrations inhibited, and at low concentrations stimulated, the formation of active oxygen forms. Hominin, on the contrary, enhanced the microbicidal potential in unstimulated cultures, but decreased zyozane-induced ROS production; both peptides decreased the scavenging activity of monocytes and neutrophils in vitro. Nisin and poly-L-arginine had no effect on phagocytic activity and microbicidal potential.
Conclusion. The obtained data confirm the hypothesis that antimicrobial peptides inhibit the growth of competitive microflora and have a modulating effect on innate immunity.
About the authors
Sergey Gein
Institute of Ecology and Genetics of Microorganism, Perm Federal Research Center, Russian Academy of Sciences, Perm, Russian Federation;Perm State University, Perm, Russian Federation
Email: hein73@mail.ru
ORCID iD: 0000-0002-0799-3397
MD, director of Institute of Ecology and Genetics of Microorganisms - Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences; professor of department of microbiology and immunology Perm State National Research University
Russian FederationTatyana Polyudova
Institute of Ecology and Genetics of Microorganism, Perm Federal Research Center, Russian Academy of Sciences, Perm, Russian Federation
Email: poludova76@mail.ru
PhD, Researcher, head of the Laboratory of Biochemistry of Microbial Development, Institute of Ecology and Genetics of Microorganisms of the Institute of Ecology and Genetics of Microorganisms - Perm Federal Research Center of the Ural Branch of the Russian Academy of Sciences
Russian FederationMatvey Ibatullin
Institute of Ecology and Genetics of Microorganism, Perm Federal Research Center, Russian Academy of Sciences, Perm, Russian Federation;Perm State University, Perm, Russian Federation
Author for correspondence.
Email: manovvi@yandex.ru
master's student at the Department of Microbiology and Immunology, Perm State University; Laboratory Assistant, Laboratory of Molecular Immunology; Engineer, Laboratory of Biochemistry of Microbial Development, Institute of Ecology and Genetics of Microorganisms of the Institute of Ecology and Genetics of Microorganisms - Perm Federal Research Center of the Ural Branch of the Russian Academy of Sciences
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