Table 2.

Donor T-Cell Expansion and Engraftment After Transplantation

Donors Day-7 SplenocytesDay-60 PBC % H2-Kb+/H-2Dd−
Cells (×106/spleen) % T Cells
B6  1.48  75.0 ND  
GCSF-B6  1.75  60.2  99.0 
pfp−/− 1.90  69.6  ND 
GCSF-pfp−/− 2.05  64.4  99.0  
B6D2F1 2.60  13.6   0.5 
Donors Day-7 SplenocytesDay-60 PBC % H2-Kb+/H-2Dd−
Cells (×106/spleen) % T Cells
B6  1.48  75.0 ND  
GCSF-B6  1.75  60.2  99.0 
pfp−/− 1.90  69.6  ND 
GCSF-pfp−/− 2.05  64.4  99.0  
B6D2F1 2.60  13.6   0.5 

Total body irradiated B6D2F1 recipients received 1 × 107 splenocytes from control B6 donors, G-CSF–mobilized B6 donors, pfp−/− donors, G-CSF–mobilized pfp−/− donors, or control B6D2F1 donors. On day-7 posttransplant, splenocytes were harvested (n = 5/group) and were counted using a hemocytometer. The percentage of T cells was determined by staining with FITC-conjugated anti-CD4 and PE-conjugated anti-CD8 Abs. On day 60 posttransplant, peripheral blood (N = 4) was collected and stained with FITC-conjugated anti–H-2Kb and PE-conjugated anti–H-2Dd.

Abbreviation: ND, not determined.