Journal
JOURNAL OF IMMUNOLOGICAL METHODS
Volume 351, Issue 1-2, Pages 71-74Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jim.2009.09.010
Keywords
Varicella-zoster virus; Cell-mediated immunity; Interferon-gamma
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Herpes zoster is closely related to decreased varicella-zoster virus (VZV)-specific cell-mediated immunity. We validated a new assay for measuring VZV-specific immunity. We cultured the whole blood of healthy subjects with live attenuated VZV vaccine. Cultured supernatants were harvested at 24-h intervals and assayed for interferon-gamma (IFN-gamma) by an enzyme-linked immunosorbent assay (ELISA). The 48-h culture was suitable for estimating IFN-gamma release. IFN-gamma production was stable after standing for at least 4 h at room temperature. IFN-gamma production was observed in whole blood from subjects with recent VZV infection, but not in blood from subjects naive to the virus. Thus, the IFN-gamma release assay may be useful as a new surrogate assay for measuring VZV-specific immunity. (C) 2009 Elsevier B.V. All rights reserved.
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