CD40Ig treatment results in allograft acceptance mediated by CD8+CD45RClow T cells, IFN-γ, and indoleamine 2,3-dioxygenase
J. Clin. Invest. Carole Guillonneau, et al. 117:1096 doi:10.1172/JCI28801 [
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Figure 3Expression of IFN-γ and regulatory molecules by CD8
+CD45RC
low T cells.
(
A) Intracytoplasmic analysis of IFN-γ production in total splenocytes and in CD8
+CD45RC
low and CD8
+CD45RC
high cells from CD40Ig-treated or adoptively transferred animals. Cells were harvested, stimulated for 7 hours using phorbol myristate acetate and ionomycin, and analyzed with a FITC-labeled anti–IFN-γ mAb. Results are expressed as percent of positive cells. Each symbol indicates a value for an individual animals. Lines indicate mean ± SD. ATS, adoptively transferred. *
P < 0.05, **
P < 0.01, and ***
P < 0.001. (
B) Quantitative analysis of transcript accumulation was performed after isolation in CD8
+CD45RC
low or CD8
+CD45RC
high T cells isolated from CD40Ig-treated recipients or in CD8
+CD45RC
low cells from naive animals. Results are expressed in arbitrary units of molecules normalized to HPRT ± SD. GITR, glucocorticoid-induced tumor necrosis factor receptor family–related gene. *
P < 0.05, **
P < 0.01, and ***
P < 0.001.