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. 2015 Oct 20;11(10):e1005177. doi: 10.1371/journal.ppat.1005177

Fig 2. CD39 expressed by CD8+ T cells in HCV infection is enzymatically active.

Fig 2

(A) Flow cytometry sorting gates of CD39+ and CD39– CD8+ T cells and CD39+ CD25+ CD4+ Tregs used for rpHPLC analysis of CD39 activity. (B) Summary of CD39 expression level relative to Tregs in the same subjects. (C) ATP hydrolysis by CD8+ T cell populations relative to Tregs. Data represent 6 patients with chronic HCV infection. Error bars represent SEM. Statistical significance was assessed by paired Student’s t-test (B, C). *P <0.05, **P <0.01.