"Signature profiles of CMV-specific T-cells in patients with CMV reactivation after hematopoietic SCT"@en . "Sedl\u00E1\u010Dek, Petr" . . "Hub\u00E1\u010Dek, Petr" . . "11130" . "GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . . . "RIV/00216208:11130/11:7027" . "46" . "7"^^ . . . . "8"^^ . "0268-3369" . . "[57D8A6D86208]" . . . . . . "Star\u00FD, Jan" . "Depletion of cellular immunity as a consequence of conditioning before allogeneic hematopoietic SCT (HSCT) frequently results in CMV reactivation, which may in turn lead to life-threatening infections and require timely antiviral treatment. We have investigated the functional signatures of CMV-specific CD4+ and CD8+ T-cells in 191 samples from 118 individuals. We compared healthy donors with both patients with high and undetectable viral loads, and those who controlled and did not control their CMV reactivations. Polychromatic flow-cytometric measurements of CD154 (CD40L), intracellular cytokines (IFN gamma, IL2) and a degranulation marker (CD107a) allowed us to assess the functional status of various T-cells simultaneously. We found that dual IFN gamma/IL2-producing CD8+ T-cells were present in patients controlling their CMV reactivations but absent from non-controllers. CD8+ T-cells that produce only IFN gamma were the most abundant subtype, but they most likely represent non-protective memory cells. Distinct functional signatures were examined by hierarchical clustering, and this revealed that, unlike polyfunctional CD8+ T-cells, CD8+ T-cells that produce IFN gamma alone were not functioning in concert with other subsets. In conclusion, our study revealed functional signatures that may be useful for immune monitoring, and it could change the interpretation of previous studies that assessed only IFN gamma. Bone Marrow Transplantation (2011) 46, 1089-1098; doi: 10.1038/bmt.2010.261; published online 8 November 2010" . . "Signature profiles of CMV-specific T-cells in patients with CMV reactivation after hematopoietic SCT" . . . . "human T-cells; hematopoietic SCT; children; CMV; immunologic monitoring; IFN-gamma; IL-2; allogeneic marrow transplantation; human cytomegalovirus-infection; immune reconstitution; functional signatures; viral-infection; cd8+t cells; recipients; cd4(+); cd8(+); disease"@en . "229211" . . "P(NS9996), Z(MSM0021620813), Z(MZ0FNM2005)" . . . "Keslov\u00E1, Petra" . "Stuchl\u00FD, Jan" . . "Signature profiles of CMV-specific T-cells in patients with CMV reactivation after hematopoietic SCT"@en . . . . . . . . "Kr\u00F3l, Ladislav" . . . "http://www.ncbi.nlm.nih.gov/pubmed/21057553" . . . "000293779000009" . . "Hru\u0161\u00E1k, Ond\u0159ej" . "10"^^ . "8" . . . . . "RIV/00216208:11130/11:7027!RIV12-MZ0-11130___" . "Depletion of cellular immunity as a consequence of conditioning before allogeneic hematopoietic SCT (HSCT) frequently results in CMV reactivation, which may in turn lead to life-threatening infections and require timely antiviral treatment. We have investigated the functional signatures of CMV-specific CD4+ and CD8+ T-cells in 191 samples from 118 individuals. We compared healthy donors with both patients with high and undetectable viral loads, and those who controlled and did not control their CMV reactivations. Polychromatic flow-cytometric measurements of CD154 (CD40L), intracellular cytokines (IFN gamma, IL2) and a degranulation marker (CD107a) allowed us to assess the functional status of various T-cells simultaneously. We found that dual IFN gamma/IL2-producing CD8+ T-cells were present in patients controlling their CMV reactivations but absent from non-controllers. CD8+ T-cells that produce only IFN gamma were the most abundant subtype, but they most likely represent non-protective memory cells. Distinct functional signatures were examined by hierarchical clustering, and this revealed that, unlike polyfunctional CD8+ T-cells, CD8+ T-cells that produce IFN gamma alone were not functioning in concert with other subsets. In conclusion, our study revealed functional signatures that may be useful for immune monitoring, and it could change the interpretation of previous studies that assessed only IFN gamma. Bone Marrow Transplantation (2011) 46, 1089-1098; doi: 10.1038/bmt.2010.261; published online 8 November 2010"@en . "Signature profiles of CMV-specific T-cells in patients with CMV reactivation after hematopoietic SCT" . "Bone Marrow Transplantation" . . "Kalina, Tom\u00E1\u0161" . .