Journal
INFECTION AND IMMUNITY
Volume 87, Issue 3, Pages -Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/IAI.00613-18
Keywords
attenuated vaccine; cytokines; host response; inflammation; Mycoplasma gallisepticum; TLR; vaccine
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Funding
- USDA National Institute of Food and Agriculture, Animal Health [CONS00930, CONS00874]
- Center of Excellence for Vaccine Research
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Mycoplasmas are small bacterial commensals or pathogens that commonly colonize host mucosal tissues and avoid rapid clearance, in part by stimulating inflammatory, immunopathogenic responses. We previously characterized a wide array of transcriptomic perturbations in avian host tracheal mucosae infected with virulent, immunopathologic Mycoplasma gallisepticum; however, mechanisms delineating these from protective responses, such as those induced upon vaccination, have not been thoroughly explored. In this study, host transcriptomic responses to two experimental M. gallisepticum vaccines were assessed during the first 2 days of infection. Relative to virulent infection, host metabolic and immune gene responses to both vaccines were greatly decreased, including early innate immune responses critical to disease development and subsequent adaptive immunity. These data specify host genes and potential mechanisms contributing to maladaptive versus beneficial host responses-information critical for design of vaccines efficacious in both limiting inflammation and enabling pathogen clearance.
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