Comparative analysis of immune responses to intraperitoneal administration of lytic E. coli bacteriophages in mice

With the global spread of bacterial resistance and the decreasing effectiveness of antibiotics, the relevance of phage therapy is constantly growing. However, for systemic use of bacteriophages in medical practice, a complete understanding of their interaction not only with bacterial cells but also...

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Main Authors: Madina S. Alexyuk, Andrey P. Bogoyavlenskiy, Irina A. Zaitseva, Elmira S. Omirtaeva, Yergali S. Moldakhanov, Kuralay S. Akanova, Elmira I. Anarkulova, Vladimir E. Berezin, Pavel G. Alexyuk
Format: Article
Language:English
Published: Elsevier 2025-09-01
Series:Virus Research
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Online Access:http://www.sciencedirect.com/science/article/pii/S0168170225000887
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author Madina S. Alexyuk
Andrey P. Bogoyavlenskiy
Irina A. Zaitseva
Elmira S. Omirtaeva
Yergali S. Moldakhanov
Kuralay S. Akanova
Elmira I. Anarkulova
Vladimir E. Berezin
Pavel G. Alexyuk
author_facet Madina S. Alexyuk
Andrey P. Bogoyavlenskiy
Irina A. Zaitseva
Elmira S. Omirtaeva
Yergali S. Moldakhanov
Kuralay S. Akanova
Elmira I. Anarkulova
Vladimir E. Berezin
Pavel G. Alexyuk
author_sort Madina S. Alexyuk
collection DOAJ
description With the global spread of bacterial resistance and the decreasing effectiveness of antibiotics, the relevance of phage therapy is constantly growing. However, for systemic use of bacteriophages in medical practice, a complete understanding of their interaction not only with bacterial cells but also with human and animal organisms in the context of co-administered therapy is required.This article presents the studies into the effects of lytic Escherichia coli bacteriophages on various immune response factors after their intraperitoneal administration in mice. It was found using Real-Time PCR and ELISA methods that the administration of the vB_EcoM_SCS4 and vB_EcoM_SCS57 phages did not increase the gene expression of TLR3, TLR9, IL-4, IL-5, IL-6 and the concentration of IL-2, IL-4, IL-5 and IL-6 in mice, but led to a multi-fold increase in the gene expression and concentration of IFNγ. Whereas, the injection of the vB_EcoS_SCS44 phage into mice increased the expression of the studied genes, except for the IL-5 gene, by 4 to 7 times and increased the concentration of IL-2, IL-4, IL-6 and IFNγ, except for IL-5, by 2 to 3 times. When determining the titer of virus-specific antibodies, it was found that after the administration of phages vB_EcoM_SCS4 and vB_EcoM_SCS57, the titer of IgA, IgG and IgM did not differ from that of the control animals, but the administration of phage vB_EcoS_SCS44 stimulated a twofold increase in the titer of phage-specific IgA, IgG, IgM.
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spelling doaj-art-8f2ea0ddc803499cbc4eb46c5a54531c2025-08-22T04:54:49ZengElsevierVirus Research1872-74922025-09-0135919961010.1016/j.virusres.2025.199610Comparative analysis of immune responses to intraperitoneal administration of lytic E. coli bacteriophages in miceMadina S. Alexyuk0Andrey P. Bogoyavlenskiy1Irina A. Zaitseva2Elmira S. Omirtaeva3Yergali S. Moldakhanov4Kuralay S. Akanova5Elmira I. Anarkulova6Vladimir E. Berezin7Pavel G. Alexyuk8Research and Production Center for Microbiology and Virology, Almaty, KazakhstanResearch and Production Center for Microbiology and Virology, Almaty, KazakhstanResearch and Production Center for Microbiology and Virology, Almaty, KazakhstanResearch and Production Center for Microbiology and Virology, Almaty, KazakhstanResearch and Production Center for Microbiology and Virology, Almaty, KazakhstanResearch and Production Center for Microbiology and Virology, Almaty, KazakhstanResearch and Production Center for Microbiology and Virology, Almaty, KazakhstanResearch and Production Center for Microbiology and Virology, Almaty, KazakhstanCorresponding author at: Research and Production Center for Microbiology and Virology, 050010, Almaty, Kazakhstan.; Research and Production Center for Microbiology and Virology, Almaty, KazakhstanWith the global spread of bacterial resistance and the decreasing effectiveness of antibiotics, the relevance of phage therapy is constantly growing. However, for systemic use of bacteriophages in medical practice, a complete understanding of their interaction not only with bacterial cells but also with human and animal organisms in the context of co-administered therapy is required.This article presents the studies into the effects of lytic Escherichia coli bacteriophages on various immune response factors after their intraperitoneal administration in mice. It was found using Real-Time PCR and ELISA methods that the administration of the vB_EcoM_SCS4 and vB_EcoM_SCS57 phages did not increase the gene expression of TLR3, TLR9, IL-4, IL-5, IL-6 and the concentration of IL-2, IL-4, IL-5 and IL-6 in mice, but led to a multi-fold increase in the gene expression and concentration of IFNγ. Whereas, the injection of the vB_EcoS_SCS44 phage into mice increased the expression of the studied genes, except for the IL-5 gene, by 4 to 7 times and increased the concentration of IL-2, IL-4, IL-6 and IFNγ, except for IL-5, by 2 to 3 times. When determining the titer of virus-specific antibodies, it was found that after the administration of phages vB_EcoM_SCS4 and vB_EcoM_SCS57, the titer of IgA, IgG and IgM did not differ from that of the control animals, but the administration of phage vB_EcoS_SCS44 stimulated a twofold increase in the titer of phage-specific IgA, IgG, IgM.http://www.sciencedirect.com/science/article/pii/S0168170225000887BacteriophageE. coliImmune responseGene expressionInterleukins
spellingShingle Madina S. Alexyuk
Andrey P. Bogoyavlenskiy
Irina A. Zaitseva
Elmira S. Omirtaeva
Yergali S. Moldakhanov
Kuralay S. Akanova
Elmira I. Anarkulova
Vladimir E. Berezin
Pavel G. Alexyuk
Comparative analysis of immune responses to intraperitoneal administration of lytic E. coli bacteriophages in mice
Virus Research
Bacteriophage
E. coli
Immune response
Gene expression
Interleukins
title Comparative analysis of immune responses to intraperitoneal administration of lytic E. coli bacteriophages in mice
title_full Comparative analysis of immune responses to intraperitoneal administration of lytic E. coli bacteriophages in mice
title_fullStr Comparative analysis of immune responses to intraperitoneal administration of lytic E. coli bacteriophages in mice
title_full_unstemmed Comparative analysis of immune responses to intraperitoneal administration of lytic E. coli bacteriophages in mice
title_short Comparative analysis of immune responses to intraperitoneal administration of lytic E. coli bacteriophages in mice
title_sort comparative analysis of immune responses to intraperitoneal administration of lytic e coli bacteriophages in mice
topic Bacteriophage
E. coli
Immune response
Gene expression
Interleukins
url http://www.sciencedirect.com/science/article/pii/S0168170225000887
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