Figure 2.

Presence of donor-specific HLA-A9 on lymphocytes (green) and CECs (red). (A) shows that 100% of all CECs did not express HLA-A9 prior to SCT. (B) shows that all CECs at one month following allo-SCT are of recipient origin, while virtually all lymphocytes are of donor origin and express HLA-A9. (C and D) show representative images of HLA class I and HLA class II expression on lymphocytes (green) and CECs (red). (C) Shows that HLA-B27 is expressed in 98.89% of all CECs at three months post-transplant (both donor and recipient harbored the HLA phenotype HLA-B27). (D) Shows HLA-DR expression in 84.62% of all CECs at three months post-transplant.