Functional Profile of Cytomegalovirus (CMV)-Specific CD8+ T Cells and Kinetics of NKG2C+ NK Cells Associated With the Resolution of CMV DNAemia in Allogeneic Stem Cell Transplant Recipients
In: Journal of medical virology, Jg. 84 (2012), Heft 2, S. 259-267
Online
academicJournal
- print, 1 p.1/4
Zugriff:
Immune mechanisms involved in control of cytomegalovirus (CMV) infection in the allogeneic stem cell transplantation setting have not been fully disclosed. CMV pp65 and IE-1-specific CD8+ T cells expressing IFN-γ, TNF-α, and CD107a, alone or in combination, and NKG2C+ NK cells were prospectively enumerated during 13 episodes of CMV DNAemia. The expansion of monofunctional and polyfunctional CD8+ T cells was associated with CMV DNAemia clearance. The size and functional diversity of the expanding CD8+ T-cell population was greater in self-resolved episodes than in episodes treated with antivirals. These differences were related to the magnitude of expansion of cognate antigen IFN-γ CD4+ T cells. The resolution of CMV DNAemia was associated frequently with a marked expansion of both CD56dim/ CD16+ NK cells and NKG2C+ CD56bright/CD16― NK cells. The data lend support to the role of polyfunctional CD8+ T cells in controlling CMV replication in the allogeneic stem cell transplantation setting, and suggest that NKG2C+ NK cells may be involved critically in the resolution of CMV DNAemia episodes.
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Functional Profile of Cytomegalovirus (CMV)-Specific CD8+ T Cells and Kinetics of NKG2C+ NK Cells Associated With the Resolution of CMV DNAemia in Allogeneic Stem Cell Transplant Recipients
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Autor/in / Beteiligte Person: | MUNOZ-COBO, Beatriz ; SOLANO, Carlos ; BRAVO, Dayana ; ANGELES CLARI, María ; NAVARRO, David ; BENET, Isabel ; COSTA, Elisa ; JOSE REMIGIA, Maria ; DE LA CAMARA, Rafael ; NIETO, Jose ; LOPEZ, Javier ; AMAT, Paula ; GARCIA-NOBLEJAS, Ana |
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Zeitschrift: | Journal of medical virology, Jg. 84 (2012), Heft 2, S. 259-267 |
Veröffentlichung: | Hoboken, NJ: Wiley, 2012 |
Medientyp: | academicJournal |
Umfang: | print, 1 p.1/4 |
ISSN: | 0146-6615 (print) |
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