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TDX (Tesis Doctorals en Xarxa)
Doctoral thesis . 2021
License: CC BY NC SA
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Recolector de Ciencia Abierta, RECOLECTA
Doctoral thesis . 2021
License: CC BY NC SA
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Adaptive NKG2C+ NK cells and cytomegalovirus infection in kidney transplant recipients

Authors: Ataya Fernández, Michelle;

Adaptive NKG2C+ NK cells and cytomegalovirus infection in kidney transplant recipients

Abstract

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.

La infección por citomegalovirus (CMV) en el trasplante renal (TR) es frecuente, reduciendo la supervivencia de injerto y paciente. Los linfocitos T son esenciales para controlar el virus, que además promueve la diferenciación adaptativa de células NK que expresan el receptor CD94/NKG2C. Se analizaron las células NKG2C+ y los linfocitos T en una cohorte de receptores de TR CMV+. Las células NKG2C+ pre-trasplante se asociaron a una menor incidencia de infección sintomática, sin relación con los linfocitos T específicos para CMV, indicando que pueden contribuir a contener la infección. La detección en grado variable de expansiones de células NKG2C+ tras la infección post-trasplante apunta también a su participación el control del CMV, pero su papel relativo no se apreció al solaparse con cambios en los linfocitos T. El estudio conjunto de las células T y NK NKG2C+ puede contribuir a una valoración más precisa de la infección por CMV.

Programa de doctorat en Biomedicina

Country
Spain
Keywords

Limfocitos T, 616.6, Transplante renal, T lymphocytes, Citomegalovirus, Cytomegalovirus, Infección, NK cells, Kidney transplant, Infection, NK cells, T lymphocytes, kidney transplant, infection, cytomegalovirus. Español: Células NK, linfocitos T, trasplante renal, infección, citomegalovirus.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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