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. 2012 Mar 30;7(3):e34134. doi: 10.1371/journal.pone.0034134

Figure 4. Expression of HIV-1 Gag-specific CD4+ TNF-α+ T cells expressing either CTLA-4+ or PD-1+ by participants with and without initial virologic suppression.

Figure 4

Panel A, Percentage of CD4+TNF-α+ T cells expressing CTLA-4 at week 38. Panel B, Percentage of CD4+TNF-α+ T cells expressing PD-1 at week 38.