Table 1.

Quantitation of absolute numbers of EBV-specific and alloreactive T cells

Day 0Day 7Day 14Day 21Day 28
Donor A      
 Intracellular IFN-γ production*      
  Anti-EBV CD3+ 700 3 100 15 600 13 500 23 100 
  Anti-allo CD3+ 1 100 500 600 400 200  
  Anti-EBV CD3+CD8+ 315 1 880 11 407 9 928 16 660 
  Anti-allo CD3+CD8+ 495 564 366 204 136 
  Anti-EBV CD3+CD4+ 80 810 2 520 4 536 5 848 
  Anti-allo CD3+CD4+ ND 54 42 72 170 
 Limiting-dilution analysis      
  Anti-EBV CD3+ 28 35 274 300 333  
  Anti-allo CD3+ 36 6.6 4.1 1.4 0.9  
Donor B      
 Intracellular IFN-γ production*      
  Anti-EBV CD3+ 900 1 000 5 100 6 700 5 200 
  Anti-allo CD3+ 600 400 200 100 ND 
  Anti-EBV CD3+CD8+ 448 580 2 117 6 298 7 200 
  Anti-allo CD3+CD8+ 288 435 232 67 ND 
  Anti-EBV CD3+CD4+ 657 420 2 982 1 800 561 
  Anti-allo CD3+CD4+ 365 70 71 ND ND 
 Limiting-dilution analysis      
  Anti-EBV CD3+ 10 22 38 70 132  
  Anti-allo CD3+ 23 0.8 
Day 0Day 7Day 14Day 21Day 28
Donor A      
 Intracellular IFN-γ production*      
  Anti-EBV CD3+ 700 3 100 15 600 13 500 23 100 
  Anti-allo CD3+ 1 100 500 600 400 200  
  Anti-EBV CD3+CD8+ 315 1 880 11 407 9 928 16 660 
  Anti-allo CD3+CD8+ 495 564 366 204 136 
  Anti-EBV CD3+CD4+ 80 810 2 520 4 536 5 848 
  Anti-allo CD3+CD4+ ND 54 42 72 170 
 Limiting-dilution analysis      
  Anti-EBV CD3+ 28 35 274 300 333  
  Anti-allo CD3+ 36 6.6 4.1 1.4 0.9  
Donor B      
 Intracellular IFN-γ production*      
  Anti-EBV CD3+ 900 1 000 5 100 6 700 5 200 
  Anti-allo CD3+ 600 400 200 100 ND 
  Anti-EBV CD3+CD8+ 448 580 2 117 6 298 7 200 
  Anti-allo CD3+CD8+ 288 435 232 67 ND 
  Anti-EBV CD3+CD4+ 657 420 2 982 1 800 561 
  Anti-allo CD3+CD4+ 365 70 71 ND ND 
 Limiting-dilution analysis      
  Anti-EBV CD3+ 10 22 38 70 132  
  Anti-allo CD3+ 23 0.8 

Absolute numbers were determined per 105 T lymphocytes by LDA and intracellular IFN-γ production. EBV-specific and alloreactive CD3+ cells per 105 T lymphocytes were determined by LDA at weekly incremental time points from day 0 to day 28 during the generation of EBV-specific T-cell lines of donors A and B. Results were compared to EBV-specific and alloreactive CD3+ cells producing intracellular IFN-γ per 105 T lymphocytes. FACS analysis also determined the CD8+IFN-γ+ and CD4+IFN-γ+ subpopulations per 105T cells.

ND indicates not detectable.

*

Absolute numbers of EBV-specific and alloreactive T cells per 105 T lymphocytes by intracellular IFN-γ production.

Absolute numbers of EBV-specific and alloreactive T cells per 105 T lymphocytes obtained by LDA.

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