Again, the combination of IL-15 and α-GalCer resulted in greater increase of iNKT cell recovery ratio compared to α-GalCer alone in controls (128.7±54.2 vs. 11.3±5.6, p = 0.002) and SLE patients (50.4±34.7 vs. 2.0±0.4, p<0.001) as well. The gene discussed is IL15; the disease is systemic lupus erythematosus.