Pharmacological assessment of immunotropic activity of new gel metabiotic on cellular and humoral immunity in experimentally modeled thermal skin burns

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Abstract

Thermal skin burns were experimentally modeled in laboratory animals revealed immunotropic effects of new gel metabiotic consisting of complex biological active substances produced by Bacillus subtilis B-3679 strain as part of three gel transcutaneous bases: tizol, eftiderm and organosilicon glycerohydrogel on cellular and humoral immunity. The aim of the study was to evaluate immunotropic activity of a new gel metabiotic on cellular and humoral immunity in experimentally modeled thermal skin burns in 60 white laboratory Wistar rats, weighed 180-220 g, for metabiotic consisting of a complex biologically active substances produced by Bacillus subtilis B-3679 strain containng the three gel transcutaneous bases: tizol, ephtiderm and organosilicon glycerohydrogel (KTGG). Registered, standardized antimicrobial and wound-healing ointment levosin was used as a control. The experimental data obtained confirm the effectiveness of using the drugs studied for treatment of first and second degree thermal burns revealed by faster decreased area of affected area compared to experimental animals treated with levosin. While evaluating therapeutic effectiveness of experimental samples of metabiotic-based gel preparations, their influence on various parameters of cellular and humoral immunity in modeled thermal skin burn was examined. We assessed phagocytic activity of blood neutrophils and peritoneal macrophages, quantified T and B lymphocytes, as well as antibody-forming cells and immunoglobulins of various classes. It was found that in experimental animals reproducing models of traumatic skin injuries, there is an increase in the level of all the studied parameters of humoral immunity. Concentration of immunoglobulin M, circulating immune complexes and immunoglobulin E, as well as various cytokines, increased larger. The level of α-interferon and the receptor antagonist interleukin-1 was elevated. Thus, the study of the humoral status of experimental animals that received test metabiotic-based gel preparations in modeled thermal skin burns, allows to conclude that they significantly influenced various arms both cellular and humoral immunity. More marked effects were observed for metabiotic-based drugs containing tizol and KTGG. In general, based on the experimental data we can conclude that the relatively high therapeutic effectiveness of examined drugs in the treatment of thermal skin burn wounds in experimental animals, use of which provided earlier removal of necrotic masses, accelerated regeneration processes, and prevented development of secondary wound infection in burns.

About the authors

N. А. Zabokritskiy

Institute of immunology and physiology, Ural Branch, Russian Academy of Sciences

Author for correspondence.
Email: pharmusma@rambler.ru

Zabokritskiy Nikolai A. - PhD, МD (Medicine), Associate Professor, Senior Research Associate, Laboratory of Immunophysiology and Immunopharmacology

620049, Yekaterinburg, Pervomayskaya str., 106

Phone: 7 (922) 110-11-14

Russian Federation

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