Table 1.

CRA and cell expansion results after IVS with unmodified and ubiquitinated pp65-VV



% Cytotoxicity to pp65 MCE

HLA, donor UPN, and IVS VV-pp65
A2495-503
B7417-426
Expansion, fold
A*0201    
   001     67  
      Unmodified   66   —   
      Ubiquitinated   91   —   
   002     7  
      Unmodified   28   —   
      Ubiquitinated   41   —   
   003     190  
      Unmodified   40   —   
      Ubiquitinated   70   —   
   004     151  
      Unmodified   66   —   
      Ubiquitinated   76   —   
B*0702    
   005     23  
      Unmodified   —   46   
      Ubiquitinated   —   75   
   006     10  
      Unmodified   —   74   
      Ubiquitinated   —   79   
   007     65  
      Unmodified   —   42   
      Ubiquitinated   —   72   
   008     340  
      Unmodified   —   41   
      Ubiquitinated
 

 
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% Cytotoxicity to pp65 MCE

HLA, donor UPN, and IVS VV-pp65
A2495-503
B7417-426
Expansion, fold
A*0201    
   001     67  
      Unmodified   66   —   
      Ubiquitinated   91   —   
   002     7  
      Unmodified   28   —   
      Ubiquitinated   41   —   
   003     190  
      Unmodified   40   —   
      Ubiquitinated   70   —   
   004     151  
      Unmodified   66   —   
      Ubiquitinated   76   —   
B*0702    
   005     23  
      Unmodified   —   46   
      Ubiquitinated   —   75   
   006     10  
      Unmodified   —   74   
      Ubiquitinated   —   79   
   007     65  
      Unmodified   —   42   
      Ubiquitinated   —   72   
   008     340  
      Unmodified   —   41   
      Ubiquitinated
 

 
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CRA, described in “Materials and methods,” was performed after 7 to 12 days IVS with pp65-VV (unmodified) or UbRpp65-VV (ubiquitinated) for each CMV-positive donor. The lysis percentages to autologous LCL targets, pulsed with pp65495-503 for HLA A*0201 donors or with pp65417-426 for HLA A*0702 donors, are shown at E/T 20, except for donor 004 reported at E/T 5. In the last column, the highest cell expansion obtained after unmodified or ubiquitinated VV-pp65 IVS is shown for each donor. — indicates not applicable.

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