Abstract
Introduction. In this study, we estimated features of modifying effects produced by benzo(a)pyrene well as by vaccine antigens of the SARS-CoV-2 and Influenzavirus viruses on the cytokine profile indicators under experimental conditions in vitro.
Materials and methods. To assess the cytokine-producing function, there was studied a mixed population of immunocytes, which was cultured for 72 hours, followed by analyzing the cytokine profile by enzyme immunoassay. Benzo(a)pyrene and viral vaccine antigens S protein of SARS-CoV-2 and hemagglutinins
of Influenzaviruses of types A and B were used as inducing factors (modifiers).
Results. For exposure to benzo(a)pyrene in vitro there was noted multidirectional modification of cytokine mediator production with activation of IL-8 expression and suppression of IL-6 production (p=0.003–0.047). Similar changes in cytokine expression persisted under combined load with SARS-CoV-2 and Influenzavirus viral antigens. SARS-CoV-2 antigens predominantly stimulated the expression of cytokines (IL-1β, IL-10 and IL-8), while activation of the cytokine profile by Influenzavirus antigens was limited by an increase in IL-8 expression with its maximum achieved under combined (SARS-CoV-2 + Influenzavirus) viral load (p=0.002–0.047). Simultaneous introduction of benzo(a)pyrene and viral antigens into the cell culture involved an increase in expression of pro-inflammatory cytokines IL-1β and TNF-α (p=0.004–0.038).
Limitations. The limitations of the in vitro methodological approach are associated with ambiguity as regards translation and extrapolation of the results and conclusions obtained using cellular and subcellular models to processes formed within a macroorganism.
Conclusion. The results of the study clarify and supplement the ideas about participation of cytokine compartments of intercellular interactions in development of immune and inflammatory processes associated with persisting SARS-CoV-2 and Influenzavirus and modifying effects of benzo(a)pyrene. This made it possible to verify features of combined effects produced by chemical and biological factors in experimental models in vitro (imbalance in expression of IL-8 and IL-6), to identify markers of their effects for evaluating effectiveness of measures aimed at preventing socially significant viral infections under destabilization of the environment.
About the authors
Federal Scientific Center for Medical and Preventive Technologies for Health Risk Management
Email: znv@fcrisk.ru
DSc (Medicine), Professor, Academician of the RAS, Scientific Director of the Federal Scientific Center for Medical and Preventive Health Risk Management Technologies, Perm, 614045, Russian Federation
Federal Scientific Center for Medical and Preventive Technologies for Health Risk Management
Email: skg@fcrisk.ru
PhD (Biology), head of the Laboratory of immunology and allergology, Federal Scientific Center for Medical and Preventive Health Risk Management Technologies, Perm, 614045, Russian Federation
Federal Scientific Center for Medical and Preventive Technologies for Health Risk Management
Email: oleg@fcrisk.ru
DSc (Medicine), Professor, Head of the Department of Immunobiological Diagnostic Methods of the Federal Scientific Center for Medical and Preventive Health Risk Management Technologies, Perm, 614045, Russian Federation
Federal Scientific Center for Medical and Preventive Technologies for Health Risk Management
Email: shirinkina.ali@yandex.ru
researcher of the Department of Immunobiological Diagnostic Methods of the Federal Scientific Center for Medical and Preventive Health Risk Management Technologies, Perm, 614045, Russian Federation