Nsd2 is required for Tfh differentiation in a cell-intrinsic manner.
(A and
B)
Nsd2CD4WT and Nsd2CD4KO OT II T cells were adoptively transferred into congenically distinct receipt mice, immunized with OVA (A) or SRBC-OVA (B), and analyzed at days 3 and 5. Data are representative of four independent experiments. (C) Nsd2CD4WT and NSD2CD4KO OT II T cells were adoptively transferred into CD28−/− mice, immunized with NP-OVA, and analyzed for GC B cells at day 7. Data are representative of three independent experiments. (D) CD4CreERT2+RosaYFP+Nsd2+/+ and CD4CreERT2+RosaYFP+Nsd2fl/fl mice on OT II TCR transgenic background were treated with tamoxifen for 5 d consecutively, and OT II T cells from these mice were adoptively transferred into recipient mice, which were subjected to OVA immunization and analyzed for Tfh at day 3. n = 10. Data were pooled from three experiments. In all bar graphs, bars represent means, and dots represent individual mice. Error bars show means ± SD. Statistical analysis was done with Student’s t test. **, P < 0.01; ***, P < 0.001.