6533b85ffe1ef96bd12c1db5
RESEARCH PRODUCT
gd T cells condition dendritic cells in vivo for priming pulmonary CD8 T cell responses against Mycobacterium tuberculosis
Nadia CaccamoGuido SireciJuraj IvanyiFrancesco DieliSerena MeravigliaAlfredo Salernosubject
MaleT cellImmunologyBiologyCD8-Positive T-LymphocytesLymphocyte ActivationInterleukin 21Interferon-gammaMiceT-Lymphocyte SubsetsmedicineImmunology and AllergyCytotoxic T cellAnimalsTuberculosisIL-2 receptorAntigen-presenting cellLungFollicular dendritic cellsReceptors Antigen T-Cell gamma-deltaDendritic CellsMycobacterium tuberculosisNatural killer T cellFlow CytometryInterleukin-12Mice Mutant StrainsMice Inbred C57BLmedicine.anatomical_structureImmunologyInterleukin 12Femaledescription
gammadelta T cells and dendritic cells are quickly recruited to the lungs shortly after intranasal vaccination with BCG, but the functional in vivo interplay between these two cell populations and its role in the induction of adaptive immune responses is unclear. Using TCR-deficient mice and bone marrow chimeras, we show here that gammadelta T cells provide a non-redundant early source of IFN-gamma in vivo, which enhances IL-12 production by lung dendritic cells. The in vivo-conditioned dendritic cells, in turn, prime a more efficient lung CD8 T cell response against Mycobacterium tuberculosis. Thus, strategies exploiting gammadelta T cell function and IFN-gamma production could be valuable for the design and testing of mucosal vaccines.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-09-19 |