Fig. 1

IL-15 complex has a systemic effect on NK cells, but also in the lungs. The numbers of NK cells (NKP46⁺, DX5⁺, CD3⁻) were respectively measured in (a) lungs, (b) mediastinal lymph nodes and (c) spleen by flow cytometry. The dissected lungs, mediastinal lymph nodes, and spleen from control mice (CTL) and mice treated by IL-15 complex (IL-15 Cx) were crushed, filtered, and then lysed by Red Blood Cell lysis (RBC) for lungs and spleen. The data are represented as mean ± SEM (between 5 and 6 mice per group); * p < 0.05, ** p < 0.01, using non parametric Mann-Whitney test. ns = not significant