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Article Dans Une Revue Research in Veterinary Science Année : 2015

Interferon gamma response to Mycobacterium avium subsp. paratuberculosis specific lipopentapeptide antigen L5P in cattle

Résumé

After Mycobacterium avium subsp. paratuberculosis (Map) infection the cell-mediated immune (CMI) response indicative of early Th1 activation may be detected using interferon-gamma release assay (IGRA). Currently, the purified protein derivatives (PPDs), i.e., the total extract of mycobacteria antigens are used to recall CMI responses against Map. This study aimed to assess the ability of the chemically synthesized Map specific cell wall lipopentapeptide L5P to induce CMI response in cows infected by Map compared to PPD. L5P and PPD elicited an IFN-γ response in 12 and 35 animals from two Map infected herds respectively, but IFN-γ was not detected in the 13 cows recruited from a non-infected herd. Levels of IFN-γ detected were higher with PPD than with L5P. There was no correlation between the IFN-γ response and the humoral response to Map or faecal culture.
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Dates et versions

hal-01188322 , version 1 (28-08-2015)

Identifiants

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Sébastien Holbert, Maxime Branger, Armel Souriau, Bérénice Lamoureux, Christelle Ganneau, et al.. Interferon gamma response to Mycobacterium avium subsp. paratuberculosis specific lipopentapeptide antigen L5P in cattle. Research in Veterinary Science, 2015, 102, pp.118-121. ⟨10.1016/j.rvsc.2015.07.017⟩. ⟨hal-01188322⟩
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