Figure 1

Expression of PD-1 and TIM3 is enhanced on T cells from patients with leukemia relapse post transplant. Flow cytometry analysis of surface expression of BTLA, 2B4, LAG3, CD160, TIM-3 and PD-1 was performed on PBMCs collected from AML patients post alloSCT. (a–g) Histogram displays the expression of above receptors on T cells from representative patients of relapse vs remission. CD4+ or CD8+ cells were gated. Percentage of cells expressing each receptor is shown. Panels on right are plots of expression of each receptor on CD4+ or CD8+ T cells from patients with relapse (n=4–5) vs remission (n=6). Each square represents data from one patient. **P<0.01.