Figure 6. Decreased expression of IL-21, CD40L, pSTAT3 and Bcl-6 in splenic Tfh cells of MRL/lpr mice treated with MCC950.
(A) Serum IL-21 level was significantly lower in MCC950-treated group than that in vehicle group. (B) and (C) The expressions of IL-21 in Tfh cells was also significantly lower in the MCC950-treated group. (D)–(I) Similar increases of CD40L, pSTAT3 and Bcl-6 expressions in Tfh cells were detected. These increases were inhibited by MCC950.