Co-inoculation of Borrelia afzelii with tick salivary gland extract influences distribution of immunocompetent cells in the skin and lymph nodes of mice.
The impact of Ixodes ricinus salivary gland extract (SGE) on inflammatory changes in the skin and draining lymph nodes of mice, elicited by the infection with the important human pathogen, B. afzelii, was determined using flow cytometry. SGE injected together with spirochetes reduced the numbers of leukocytes and gammadelta-T lymphocytes in infected epidermis at early time-points post infection. In draining lymph nodes, the anti-inflammatory effect of SGE was manifested by the decrease of total cell count compared with that in mice treated with inactivated SGE. Changes in subpopulations of immunocompetent cells apparently reflected the effect of SGE on the proliferation of spirochetes in the host. The significance of tick saliva anti-inflammatory effect for saliva activated transmission of B. afzelii is shown.
Institute of Parasitology, Academy of Sciences of the Czech Republic and Faculty of Biological Sciences, University of South Bohemia, 370 05 Ceské Budĕjovice, Czechia.
J
J
Severinová
J
J
Salát
Z
Z
Krocová
J
J
Reznícková
H
H
Demová
H
H
Horká
J
J
Kopecký
D000818:Animals; D015748:Borrelia burgdorferi Group / Q000254:growth & development*; D005260:Female; D008193:Lyme Disease / Q000276:immunology* / Q000473:pathology / Q000635:transmission; D008198:Lymph Nodes / Q000276:immunology* / Q000473:pathology; D018655:Lymphocyte Count; D016131:Lymphocyte Subsets; D051379:Mice; D008810:Mice, Inbred C57BL; D012469:Salivary Glands / Q000276:immunology; D012867:Skin / Q000276:immunology* / Q000473:pathology; D013987:Ticks / Q000276:immunology*; D014020:Tissue Extracts / Q000276:immunology
D014020:Tissue Extracts