PDCD1 and Kaposi's sarcoma: We observed that the MFI of PD-1 and KLRG1 on CD57+ NKTdim cells from KS/HIV patients was similar to HIV+ asymptomatic men, and both treatment schemes did not modify the expression of PD-1 and KLRG1 across the follow-up weeks (Figure 9A,B, respectively).