Fig. 3From: Phospholipase D4 as a signature of toll-like receptor 7 or 9 signaling is expressed on blastic T-bet + B cells in systemic lupus erythematosusTLR7 or TLR9 stimulation is sufficient to induce PLD4 + B cells in healthy donors. A, B PBMCs from HDs were cultured in vitro with stimulants. A shows representative plots in one donor. In B, the ratios of induced PLD4 + B cells were represented by dots in the boxplots and compared between the stimulants. C Naive B cells isolated from three HDs were cultured with or without TLR9 ligand for 2 days, after which PLD4 mRNA expressions were measured by RT-qPCR. *P < 0.05, ***P < 0.01, ***P < 0.005, by Mann–Whitney U test in B and by the Wilcoxon signed-rank test in CBack to article page