cell suspensions were obtained from BM and stained with CD16/32,BV
421-TCRβ (clone H57–597), PerCP/Cy5.5-CD4 (clone
RM4–5), PE-CD25 (clone PC61) and BV 711-CD8-(clone 53–6.7)
(Biolegend, San Diego, CA). 1 X106 cells were sorted on a BD Arya
cell sorter. The sorted cells were collected in complete RPMI-1640 media.
Purified cells were then collected by centrifugation and dissolved in Trizol
reagent for RNA isolation.