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Microbiol Immunol. 2000;44(12):1027-31.

IL-12, IFN-gamma, and TNF-alpha released from mononuclear cells inhibit the spread of varicella-zoster virus at an early stage of varicella.

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1
Department of Pediatrics, Yokkaichi Social Insurance Hospital, Mie, Japan. yokkab32@pmet.or.jp

Abstract

The activity of mononuclear cells to inhibit plaque formation of varicella-zoster virus (VZV) was investigated by an in vitro infectious center assay. Peripheral blood mononuclear cells (PBMC) inhibited VZV plaque formation by co-cultivation with VZV-infected fibroblasts. As compared to mononuclear cells from normal individuals, mononuclear cells from umbilical cord blood and from patients receiving corticosteroids showed a significant decrease in the ability to inhibit viral replication. This ability was significantly increased for mononuclear cells collected during the acute phase of varicella. PBMC obtained from patients in the acute phase of varicella produced significantly higher amounts of interferon (IFN)-gamma, tumor necrosis factor (TNF)-alpha, and interleukin (IL)-12 in the supernatant compared with those of healthy individuals. These data suggest that the cytokines have an important role in the inhibition of the spread of VZV at an early stage of varicella. Th1 type adaptive immunity might play a major role in VZV infection.

PMID:
11220676
[Indexed for MEDLINE]
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