HCMV-specific immune reconstitution in 8 patients at more than 150 days after allogeneic SCT
Patient . | Donor . | HCMV serostatus (D/R)3-150 . | Chronic GVHD . | Immune suppression . | HCMV infection3-151 . | HCMV disease . | Peptide-specific CD8+ . | Protein-specific CD4+ Count (n/μL) . | ||
---|---|---|---|---|---|---|---|---|---|---|
Duration, wk . | Peak viral load (GE/mL) . | HLA allele . | Count (n/μL) . | |||||||
53-152 | Sibl | +/+ | Limited | Pred 0.1 | 3 | 3240 | — | A2 | 9.6 | ND |
20 | Sibl | +/+ | No | CSA/pred 0.1 | 0 | < 400 | — | A2 | 7.6 | 8.3 |
213-153 | Sibl | +/+ | Limited | — | 8 | 56 900 | Late IP | A2 | 1.2 | — |
12 | MM | +/+ | Limited | — | 9 | ND | — | A2 | 52.5 | — |
153-152,3-154 | MUD | +/+ | Limited | CSA | 2 | < 400 | Late IP | A2 | 35.81 | 0.79 |
17 | MUD | −/+ | Limited | 0.1 | 12 | 210 000 | — | A1 | — | 1.51 |
22 | MUD | +/− | Limited | CSA/pred 0.2 | 8 | 11 300 | — | A2 | 5.45 | ND |
233-152 | MUD | −/+ | Limited | — | 8 | 50 400 | Late IP | A2 | — | — |
Patient . | Donor . | HCMV serostatus (D/R)3-150 . | Chronic GVHD . | Immune suppression . | HCMV infection3-151 . | HCMV disease . | Peptide-specific CD8+ . | Protein-specific CD4+ Count (n/μL) . | ||
---|---|---|---|---|---|---|---|---|---|---|
Duration, wk . | Peak viral load (GE/mL) . | HLA allele . | Count (n/μL) . | |||||||
53-152 | Sibl | +/+ | Limited | Pred 0.1 | 3 | 3240 | — | A2 | 9.6 | ND |
20 | Sibl | +/+ | No | CSA/pred 0.1 | 0 | < 400 | — | A2 | 7.6 | 8.3 |
213-153 | Sibl | +/+ | Limited | — | 8 | 56 900 | Late IP | A2 | 1.2 | — |
12 | MM | +/+ | Limited | — | 9 | ND | — | A2 | 52.5 | — |
153-152,3-154 | MUD | +/+ | Limited | CSA | 2 | < 400 | Late IP | A2 | 35.81 | 0.79 |
17 | MUD | −/+ | Limited | 0.1 | 12 | 210 000 | — | A1 | — | 1.51 |
22 | MUD | +/− | Limited | CSA/pred 0.2 | 8 | 11 300 | — | A2 | 5.45 | ND |
233-152 | MUD | −/+ | Limited | — | 8 | 50 400 | Late IP | A2 | — | — |
HCMV indicates human cytomegalovirus; SCT, stem cell transplantation; GVHD, chronic graft-versus-host disease; GE, genome equivalents; Sibl, HLA-identical sibling; pred, prednisolone; ND, not done; CSA, cyclosporin A; IP, interstitial pneumonia; MM, HLA-nonidentical family member; and MUD, matched unrelated donor.
HCMV serostatus as assessed by enzyme-linked immunosorbent assay in stem cell donor (D) and recipient (R).
Duration indicates the weeks of viremia as assessed by the in-house polymerase chain reaction method before day 100 after SCT. Viral load was measured with a COBAS Amplicor HCMV monitor. The peak viral load before day 100 is indicated.
Patients who received nonmyeloablative conditioning treatment.
Patient who received CD34+-selected stem cells obtained with use of the CliniMACS system.
This patient received donor lymphocytes for relapse of the underlying malignant disease. Severe GVHD subsequently developed and was treated with corticosteroids and OKT3. The patient later died from HCMV-induced pneumonia (Figure 4).