Restricted Transcription of Varicella-Zoster Virus in Latently Infected Human Trigeminal and Thoracic Ganglia

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Abstract
Normal human trigeminal and thoracic ganglia latently infected with varicella-zoster virus (VZV) were identified bypolymerase chain reaction (PCR). Total RNA wasextracted from these ganglia and treated with DNase until ganglionic RNA was free of VZV DNA as determined by PCR. Radiolabeled cDNA synthesized by priming with random oligonucleotides was hybridized to Southern blots containing recombinant clones that spanned >95% of the VZV genome. The single region of the VZV genome detected was the 12.5-kb SalI C fragment located in the unique long segment of the viral genome. Two additional regions of the VZV genome, EcoRI G and SalI B, were detected in RNA from adult dorsal root ganglia and infant nervous system tissue.

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