Abstract
This study was aimed at determining (a) the extent of proliferation of peripheral blood mononuclear cells (PBMC) in response to stimulation by cytomegalovirus (CMV)-infected fibroblasts and (b) the levels of Th1 and Th2 cytokine production in kidney transplant recipients with and without active CMV infection. Thirty patients with, and 39 without active CMV infection, diagnosed by a CMV antigenemia assay (AA), were studied. PBMC of patients with active CMV infection showed significantly lower proliferation than those without ongoing CMV infection (P<0.0001). The levels of Th2-type cytokines (interleukin (IL-) 4 and IL-10) in AA-negative and AA-positive kidney transplant recipients were similar but the levels of the Th1-type cytokines interferon-gamma, tumor necrosis factor-alpha (P<0.05) and IL-2 were significantly lower in AA-positive kidney transplant recipients (P<0.0005).
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