After adjusting for sex and age, the expression of CAMK2A (p < 0.001), MASP2 (p < 0.001), GNG13 (p < 0.001), MUC5AC (p < 0.001), and NGFR (p = 0.035) was significantly increased in T cells from patient with RA compared with the controls. This evidence concerns the gene MASP2 and rheumatoid arthritis.