CD27 and rheumatoid arthritis: The results showed that TLR10 was mainly expressed in the CD19+CD27+ subset in both the RA subjects and HCs (72.7 ± 1.6% vs. 46.5 ± 1.8% and 73.2 ± 2.2% vs. 43.7 ± 2.4%; P ≤ 0.001 and P ≤ 0.001, respectively) and that TLR10 levels were similar between the RA subjects and HCs in both the CD19+CD27+ and the CD19+CD27− subsets (P = 0.983 and P = 0.385, respectively) (Table 2 and Figure 3(a)).