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- W1994031700 abstract "Serological analysis of the infection status with the human cytomegalovirus (CMV) may be inaccurate after transfusion of blood products due to the variable content of CMV-specific antibodies.In this situation, analysis of cellular immunity may represent a more accurate parameter to assign the individual CMV-infection status. This hypothesis was assessed in a sequence of clinically defined events where a CMV-seronegative patient received human immunoglobulins before AB0 incompatible transplantation of a graft from his CMV-seropositive mother and developed CMV-primary infection thereafter.Humoral immunity was analyzed using ELISA, and CMV-specific CD4 T-cells were flow-cytometrically quantified using intracellular cytokine staining after a 6 h-stimulation with a CMV-antigen lysate.Prior to transplantation, both CMV-specific antibody-titers and T-cell frequencies were below detection limit. After plasma infusion, the patient was temporarily seropositive but remained T-cell negative indicating passive immunity. CMV-specific T-cells became stably detectable after graft-related primary infection, thereby confirming a truly positive infection status.This case provides an instructive proof of principle to show that CMV-specific CD4 T-cells may serve as an accurate marker to define the true CMV-infection status in situations where serological testing is limited by the presence of passively administered antibodies." @default.
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- W1994031700 date "2012-07-01" @default.
- W1994031700 modified "2023-10-16" @default.
- W1994031700 title "Cytomegalovirus-specific T-cell immunity to assign the infection status in individuals with passive immunity: A proof of principle" @default.
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- W1994031700 doi "https://doi.org/10.1016/j.jcv.2012.03.001" @default.
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