Figure Legend
Figure 1. Immune reconstitution following umbilical cord blood transplantation (UCBT). A . Time frame of immune recovery is depicted in this illustration. TREC (T cell receptor excision circles) presented in cells/mcL; STR (short tandem repeat) in percent values; PHA (Phytohemagglutinin); PWM (Pokeweed); Con A (Concanavalin A).B . Post-UCBT immune reconstitution course of T cells (CD3+), recent thymic emigrants (RTE) that are CD3+CD4+CD45RA+CD31+, CD5-dim T cells, CD4+ T cells and CD8+ T cells in percent values of the denominator population. Higher CD5-dim T cell ratios in earlier days of immune reconstitution may reflect greater release of maturing thymocytes into circulation. C . Flow cytometry histograms reflecting the pattern of CD3+/CD4+ cells, RTE, CD56+/CD16+/– cells and CD5-dim T cells (all gated on lymphocyte population) 10 months following UCBT.