Adaptive NKG2C+ NK cells and cytomegalovirus infection in kidney transplant recipients
Cytomegalovirus (CMV) infection in kidney transplant recipients (KTR) is frequent and may reduce graft and patient survival. T lymphocytes are essential to control the virus, which promotes the adaptive differentiation of NK cells characterized by CD94/NKG2C receptor expression. NKG2C+ NK cells and...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | CBUC, CESCA |
| Repositorio: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/671368 |
| Acceso en línea: | http://hdl.handle.net/10803/671368 |
| Access Level: | acceso abierto |
| Palabra clave: | NK cells, T lymphocytes, kidney transplant, infection, cytomegalovirus. Español: Células NK, linfocitos T, trasplante renal, infección, citomegalovirus. NK cells T lymphocytes Kidney transplant Infection Cytomegalovirus Limfocitos T Transplante renal Infección Citomegalovirus 616.6 |
| Sumario: | Cytomegalovirus (CMV) infection in kidney transplant recipients (KTR) is frequent and may reduce graft and patient survival. T lymphocytes are essential to control the virus, which promotes the adaptive differentiation of NK cells characterized by CD94/NKG2C receptor expression. NKG2C+ NK cells and T lymphocytes were analyzed in a cohort of CMV seropositive KTR. Pretransplant NKG2C+ NK cells were associated with reduced incidence of symptomatic infection, and appeared unrelated with CMV-specific T cells in a parallel study, indicating that they may contribute to contain infection progression. Moreover, NKG2C+ NK cell expansions of variable magnitude developed following posttransplant infection. The data suggested that they participate in restoring the long-term CMV control, though their relative role could not be appreciated due to the overlapping effects of the infection on the T cell compartment. Combined assessment of T and NKG2C+ NK cells might allow a more precise assessment of CMV infection in KTR. |
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