Transplantation with HCs mobilized via G-CSF or G-CSF plus plerixafor results in similar time to engraftment. (A) The days to neutrophil (left, n(G) = 20, n(G+P) = 6) and PLT engraftment (right, n(G) = 19, n(G+P) = 5) after transplantation with G-CSF– or G-CSF plus plerixafor–mobilized HCs are shown in box plot format. (B) Correlation of transplanted CD34+ cell numbers/kg (mobilized by G-CSF or G-CSF plus plerixafor) with time to neutrophil (left, n = 26) and PLT engraftment (right, n = 24). Correlations of neutrophil (left) and PLT engraftment (right) with surface levels of CXCR4 (C, n(Neutrophils) = 23 and n(PLTs) = 21), CD49d (D, n(Neutrophils) = 24 and n(PLTs) = 22), CD11a (E, n(Neutrophils) = 24 and n(PLTs) = 22), and CD44 (F, n(Neutrophils) = 15 and n(PLTs) = 14). G = G-CSF; G+P = G-CSF plus plerixafor. *p < 0.05; **p < 0.01; ns = not significant.