CD8+ T cells showed a similar expression, characterized by more raised TL1A levels in patients with active sarcoidosis (17.3 % ± 4.9), as compared to inactive disease (7.7 % ± 4.7 of CD8+ T cells; p < 0.01 vs active disease), and to controls (2.4 % ± 1.6 of CD8+ T lymphocytes; p < 0.01 vs active disease; ANOVA p < 0.01). This evidence concerns the gene CD8A and sarcoidosis.