СОВРЕМЕННЫЕ ПРЕДСТАВЛЕНИЯ О МОЛЕКУЛЯРНЫХ МЕХАНИЗМАХ ПАТОГЕНЕЗА ЧУМЫ

The review presents brief analysis of the published over the past decade results of investigations devoted to studies of currently known molecular action mechanisms of Yersinia pestis virulence factors. Analyzed are different Y. pestis components, synthesized by the bacteria at four stages of infectious process in case of bubonic plague: in derma, lymph nodes, parenchymal organs, and blood. Described are the factors and mechanisms that induce microbe protection from bactericidal action of humoral and cell factors of innate host immunity, which effect the organism of animals in different ways, stimulating pro- or anti-inflammatory reaction of a host to the infection, and contribute to the shift of bacterial life cycle inside the host, providing for the transfer from intracellular propagation in phagocytes at early stages to extracellular propagation in lymph node, spleen, liver and blood at later stages. Discussed are only those factors of Y. pestis the interaction of which with host molecules and cells at different stages of infectious process in case of bubonic plague is experimentally proved.