Table 1.
Method | Organ and D/R status | Number of infused cells | Number of infusions | Cell line phenotype | Stimulation method | Post-infusion clinical outcomes |
---|---|---|---|---|---|---|
Direct selection by IFN-γ capture Brestrich et al. (41) |
1 Lung +/+ |
Fresh 1 × 107
T-cells/m2 |
2 | 95% CD3+ cells with 2.7% and 92.3% CD4+ and CD8+ cells. No CD16+ natural killer cells and only 0.1% CD19+ B cells | Overlapping IE-1/pp65 peptide pools | No side effects occurred after the infusion. The number of CMV-specific T-cells increased, while viral load decreased. The patient died from graft failure |
Ex vivo expansion from a third party donor (43) |
1 Kidney +/− |
Frozen 1.6 x107
T-cells/m2 |
1 | 16.6% CD4+ and 79.4% CD8+ cells | Overlapping pp65 peptide pool | The patient developed a mild fever but no other adverse effects were noted and within 4 months his CMV viral load decreased from >5×106 copies to 682 copies/mL and remained controlled up to 1 year |
Autologous Ex vivo expansion (46) |
1 Lung +/− |
Fresh 3 × 107 T-cells |
4 | 82.6% CD3+ cells, including 14% CD4+ and 73.8% CD8+ cells | PBMC coated with HLA class I-restricted CMV epitopes |
Decrease in viral load. No graft rejection |
Autologous Ex vivo expansion (47) |
1 Lung +/− |
Frozen two of 1.9 x107 cells and one of 22.2 x 106 T-cells | 3 | Two first infusions 41.6% CD8+ cells Third infusion 4.43% CD8+ cells |
HLA Class I restricted epitopes from pp65, pp50 and IE-1 | The patient did not have any documented rejection or acute change in lung function after the T-cell infusions but finally died due to clinical complications unrelated to CMV |
Autologous Ex vivo expansion (48) |
13 kidney, 8 lung and 1 heart +/− +/+ −/− |
Frozen 22.2-245 × 106 T-cells | 6 | 20% CD4+ and 70% CD8+ cells | HLA class I– and class II–restricted epitopes from pp65, pp50, IE-1, gH, and gB | None of the patients who received adoptive CMV-specific T-cell therapy showed treatment-related grade 3, 4, or 5 adverse events. Reduction or resolution of CMV reactivation and/or disease and improved response to antiviral drug therapy |