Table 3

Engraftment data for human lymphomyeloid progenitor transplants assessed by FACS

Mouse IDVectorCIDDay post BMT% huCD45+ cells%CD34+Lin/huCD45+Fold increase CD34+Lin human cells
Experiment A       
    1 F36V-MPL 35 22.4 46 215.3 
    2 F36V-MPL 49 52.8 36.1 345 
    3 F36V-MPL − 35 0.71 0.1 0.02 
    4 F36V-MPL − 49 
    5 F36V-MPL − 49 0.05 
    6 Control (no transplant)  49 
Experiment B       
    1 F36V-MPL 49 21.9 23.2 75.7 
    2 F36V-MPL 49 26.1 13.1 31.8 
    3 F36V-MPL − 49 0.76 20.6 0.6 
    4 F36V-MPL − 49 0.83 18.3 0.5 
    5 F36V-MPL − 49 
    6 F36V − 49 0.64 22.2 0.5 
    7 F36V − 49 
    8 Control (no transplant)  49 
Summary    Mean % human CD45+ cells Mean %CD34+Lin/huCD45+ cells Mean fold increase CD34+Lin human cells 
 F36V-MPL  30.8 29.6 167 
 F36V-MPL −  0.4 6.5 0.2 
Mouse IDVectorCIDDay post BMT% huCD45+ cells%CD34+Lin/huCD45+Fold increase CD34+Lin human cells
Experiment A       
    1 F36V-MPL 35 22.4 46 215.3 
    2 F36V-MPL 49 52.8 36.1 345 
    3 F36V-MPL − 35 0.71 0.1 0.02 
    4 F36V-MPL − 49 
    5 F36V-MPL − 49 0.05 
    6 Control (no transplant)  49 
Experiment B       
    1 F36V-MPL 49 21.9 23.2 75.7 
    2 F36V-MPL 49 26.1 13.1 31.8 
    3 F36V-MPL − 49 0.76 20.6 0.6 
    4 F36V-MPL − 49 0.83 18.3 0.5 
    5 F36V-MPL − 49 
    6 F36V − 49 0.64 22.2 0.5 
    7 F36V − 49 
    8 Control (no transplant)  49 
Summary    Mean % human CD45+ cells Mean %CD34+Lin/huCD45+ cells Mean fold increase CD34+Lin human cells 
 F36V-MPL  30.8 29.6 167 
 F36V-MPL −  0.4 6.5 0.2 

Fold expansion of human CD34+Lin cells is derived from the percentage of huCD45+CD34+Lin cells and total cells harvested from bone marrow (femurs, tibias) divided by the number of CD34+CD38LinCD7 human cells transplanted (n = 14 mice, 2 independent experiments). Fold expansion of F36V-MPL–transduced CD34+Lin cells in CID-treated group is significantly (P = .004) greater compared with all other groups.

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