Abstract
The experiment was performed on male BALB/c mice with modeled skin wound. Two chromatographic fractions of secondary metabolites of permafrost bacteria Bacillus sp., that represent a mixture of polyethylene-polypropylene glycols oligomers with a molecular weight from 900 to 1350 Da were used as therapeutic agents. Application of the test substances on the wound surface and their parenteral administration significantly accelerated wound epithelialization in comparison with untreated control, activated metabolic processes, and improved humoral immunity. In in vitro experiments, the fractions activated the synthesis of IFNγ and IL-4 by human peripheral blood mononuclear cells. We conclude that polyethylene-polypropylene glycol oligomers can be a part of effector molecules that determine the repair and immunomodulatory potential of secondary metabolites of permafrost microorganisms Bacillus sp.
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