IL17A and systemic lupus erythematosus: However, there was no significant difference of the percentage of IL-17+γδ T cells and Foxp3+γδ T cells between SLE patients and healthy controls (0.14 ± 0.24% versus 0.18 ± 0.31%, and 0.44 ± 0.85% versus 0.49 ± 0.44%, resp., P > 0.05).