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. 1995 Nov 21;92(24):10980–10984. doi: 10.1073/pnas.92.24.10980

Reactivated and latent varicella-zoster virus in human dorsal root ganglia.

O Lungu 1, P W Annunziato 1, A Gershon 1, S M Staugaitis 1, D Josefson 1, P LaRussa 1, S J Silverstein 1
PMCID: PMC40554  PMID: 7479921

Abstract

Ganglia obtained at autopsy were examined by in situ hybridization from one patient with zoster (also called herpes zoster or shingles), two varicella-zoster virus (VZV)-seropositive patients with clinical evidence of zoster, one VZV-seronegative child, and one fetus. Ganglia positive for VZV had a hybridization signal in both neuronal and nonneuronal satellite cells. Ganglia obtained from the fetus and from the seronegative infant were consistently negative for VZV. Two striking observations were evident regarding the presence of VZV DNA in ganglia obtained from the individual with zoster at the time of death. First, ganglia innervating the sites of reactivation and ganglia innervating adjacent sites yielded strongly positive signals in neurons and satellite cells, whereas ganglia from distant sites were rarely positive. Second, VZV DNA was found in both the nuclei and the cytoplasm of neurons innervating areas of zoster. However, in neurons innervating zoster-free areas, VZV DNA was found only in the nucleus of neurons and their supporting satellite cells. Immunohistochemistry with a fluorescent monoclonal antibody to the VZV glycoprotein gpI, a late virus protein, revealed a positive signal in the cytoplasm of ganglia with clinical evidence of reactivation. These results illustrate that both neuronal and satellite cells become latently infected following primary VZV infection. The presence of VZV DNA and gpI in the cytoplasm of neurons demonstrates productive infection following reactivation at the site of latency.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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