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Expression of NT5E (CD73) on T helper cell subsets. Histograms depict expression of NT5E (CD73) on (A) CD45RA+ naïve cells and (B) four subsets of CD45RA- memory/effector cells. These subsets were distinguished by their expression of β7 and CCR7, a marker for central memory cells, as shown in Fig. 2B. Black lines indicate NT5E staining and filled red lines indicate staining obtained with an isotype control antibody.
