IMMUNE REGULATORY PROPERTIES OF BIFIDOBACTERIA METABOLITES DURING EUBIOSIS AND DYSBIOSIS OF THE HUMAN COLON

Evaluate immune regulatory properties of bifidobacteria metabolites during eubiosis and dysbiosis of the human colon. Anti-cytokine activity of metabolites of bifidobacteria clinical strains and their ability to influence the production of pro- and anti-inflammatory cytokines (IL-10) by peripheral b...

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Published in:	Žurnal mikrobiologii, ėpidemiologii i immunobiologii Vol. 92; no. 4; pp. 89 - 96
Main Authors:	Bukharin, O V, Ivanova, E V, Perunova, N B, Chainikova, I N, Nikoforov, I A, Bondarenko, T A
Format:	Journal Article
Language:	Russian
Published:	Russia (Federation) Central Research Institute for Epidemiology 01-07-2015
Subjects:	Adolescent Adult anti-cytokine activity bifidobacteria Bifidobacterium - immunology Bifidobacterium - metabolism Child Child, Preschool Colon - immunology Colon - metabolism Colon - microbiology cytokines Cytokines - immunology Cytokines - metabolism dysbiosis Dysbiosis - immunology Dysbiosis - metabolism Dysbiosis - microbiology eubiosis Female Humans Infant Leukocytes, Mononuclear - immunology Leukocytes, Mononuclear - metabolism Male Middle Aged
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Summary:	Evaluate immune regulatory properties of bifidobacteria metabolites during eubiosis and dysbiosis of the human colon. Anti-cytokine activity of metabolites of bifidobacteria clinical strains and their ability to influence the production of pro- and anti-inflammatory cytokines (IL-10) by peripheral blood mononuclear cells of healthy humans was studied, taking into account microecological state of the human intestine. Determination of final concentration of cytokines in experimental and control samples was carried out by EIA. Sensitive parameters, that are suitable for evaluation of stability of human intestine microsymbiocenosis, were detected. The level of microbial seeding, concentration of TNF-α and anti-lysozyme activity turned out to be informative for bifidobacteria in eubiosis conditions. The ability of bifidoflora metabolites to influence the production of pro-inflammatory cytokines (INF-γ, TNF-α, IL-8) by human mononuclears was a significant parameter during formation of 1 - 3 degree dysbiosis. The maintenance of physiological state of intestine homeostasis is determined by immune regulatory properties of bifidobacteria metabolites, that is realized via their interaction with both cytokines (anti-cytokine activity) and production of cytokines by host immune cells (peripheral blood mononuclears).
ISSN:	0372-9311 2686-7613