Author: ["Nobuaki Miyahara","Bradley J Swanson","Katsuyuki Takeda","Christian Taube","Satoko Miyahara","Taku Kodama","Azzeddine Dakhama","Vanessa L Ott","Erwin W Gelfand"]
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Abstract
Allergic asthma is a complex syndrome characterized by airway obstruction, airway inflammation and airway hyper-responsiveness (AHR). Using a mouse model of allergen-induced AHR, we previously demonstrated that CD8-deficient mice develop significantly lower AHR, eosinophilic inflammation and interleukin (IL)-13 levels in bronchoalveolar lavage fluid compared with wild-type mice. These responses were restored by adoptive transfer of antigen-primed CD8+ T cells1. Previously, two distinct populations of antigen-experienced CD8+ T cells, termed effector (TEFF) and central memory (TCM) cells, have been described2,3,4,5. After adoptive transfer into CD8-deficient mice, TEFF, but not TCM, cells restored AHR, eosinophilic inflammation and IL-13 levels. TEFF, but not TCM, cells accumulated in the lungs, and intracellular cytokine staining showed that the transferred TEFF cells were a source of IL-13. These data suggest an important role for effector CD8+ T cells in the development of AHR and airway inflammation, which may be associated with their Tc2-type cytokine production and their capacity to migrate into the lung.Cite this article
Miyahara, N., Swanson, B., Takeda, K. et al. Effector CD8+ T cells mediate inflammation and airway hyper-responsiveness. Nat Med 10, 865–869 (2004). https://doi.org/10.1038/nm1081 