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Tytuł pozycji:

Multiple Roles of Myd88 in the Immune Response to the Plague F1-V Vaccine and in Protection against an Aerosol Challenge of Yersinia pestis CO92 in Mice.

Tytuł :
Multiple Roles of Myd88 in the Immune Response to the Plague F1-V Vaccine and in Protection against an Aerosol Challenge of Yersinia pestis CO92 in Mice.
Autorzy :
Dankmeyer, Jennifer L.
Fast, Randy L.
Cote, Christopher K.
Worsham, Patricia L.
Fritz, David
Fisher, Diana
Kern, Steven J.
Merkel, Tod
Kirschning, Carsten J.
Amemiya, Kei
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Temat :
YERSINIA diseases
ENTEROBACTERIACEAE
ANTIGENIC variation
IMMUNE response
LABORATORY mice
Źródło :
Journal of Immunology Research; 2014, p1-13, 13p
Czasopismo naukowe
The current candidate vaccine against Yersinia pestis infection consists of two subunit proteins: the capsule protein or F1 protein and the low calcium response V protein or V-antigen. Little is known of the recognition of the vaccine by the host's innate immune system and how it affects the acquired immune response to the vaccine. Thus, we vaccinated Toll-like receptor (Tlr) 2, 4, and 2/4-double deficient, as well as signal adaptor protein Myd88-deficient mice. We found that Tlr4 and Myd88 appeared to be required for an optimal immune response to the F1-V vaccine but not Tlr2 when compared to wild-type mice. However, there was a difference between the requirement for Tlr4 and MyD88 in vaccinated animals. When F1-V vaccinated Tlr4 mutant (lipopolysaccharide tolerant) and Myd88-deficient mice were challenged by aerosol with Y. pestis CO92, all but one Tlr4 mutant mice survived the challenge, but no vaccinated Myd88-deficient mice survived the challenge. Spleens from these latter nonsurviving mice showed that Y pestis was not cleared from the infected mice. Our results suggest that MyD88 appears to be important for both an optimal immune response to F1-V and in protection against a lethal challenge of Y pestis CO92 in F1-V vaccinated mice. [ABSTRACT FROM AUTHOR]
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