Table 1.

Number of CD34-Enriched Cells Before and After Prestimulation and Transduction, CD34 Purity, Transduction Conditions, Hematopoietic Recovery and Survival in Dogs Transplanted With Transduced CD34-Enriched Cells

Dog No. No. of CD34- enriched Cells/kg ×106 Before Culture (% CD34+) Growth Factor Combination*No. of CD34- Enriched cells/kg ×106After Prestimulation Transduction Conditions for Indicated Vector No. of Cells Infused/kg ×106 (LN/LNX/LNY) (total)ANC >500/μL Survival in Months (cause of death)
LN LNX LNY
E585  4.5 (17)  FSM  2.0 Cocultivation  BSA  CH-296  0.6/0.3/0.3 (1.2)  25 >10  
E617  1.1 (80)  FSM  1.1 Cocultivation  BSA  CH-296  0.1/0.2/0.3 (0.6)  35  >9  
E649  6.8 (63)  FSG  5.1 Cocultivation  BSA  CH-296  1.8/2.4/1.8 (6.0)  10  >8  
E680  2.4 (89) FSG  2.2  CH-296  No BSA  control  Cocultivation 1.3/1.5 (2.8)  18   5 (infection) 
Dog No. No. of CD34- enriched Cells/kg ×106 Before Culture (% CD34+) Growth Factor Combination*No. of CD34- Enriched cells/kg ×106After Prestimulation Transduction Conditions for Indicated Vector No. of Cells Infused/kg ×106 (LN/LNX/LNY) (total)ANC >500/μL Survival in Months (cause of death)
LN LNX LNY
E585  4.5 (17)  FSM  2.0 Cocultivation  BSA  CH-296  0.6/0.3/0.3 (1.2)  25 >10  
E617  1.1 (80)  FSM  1.1 Cocultivation  BSA  CH-296  0.1/0.2/0.3 (0.6)  35  >9  
E649  6.8 (63)  FSG  5.1 Cocultivation  BSA  CH-296  1.8/2.4/1.8 (6.0)  10  >8  
E680  2.4 (89) FSG  2.2  CH-296  No BSA  control  Cocultivation 1.3/1.5 (2.8)  18   5 (infection) 

Abbreviations: ANC, absolute neutrophil count; BSA, bovine serum albumin.

*

Growth factor combinations used for prestimulation (24 hours) and transduction (48 hours): FLT3L, cSCF, MGDF (FSM) and FLT3L, cSCF, cG-CSF (FSG).

Days to reach a sustained neutrophil count greater than 500/μL.

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