PMID- 16254342 OWN - NLM STAT- MEDLINE DCOM- 20060127 LR - 20181113 IS - 0022-538X (Print) IS - 1098-5514 (Electronic) IS - 0022-538X (Linking) VI - 79 IP - 22 DP - 2005 Nov TI - Laser-capture microdissection: refining estimates of the quantity and distribution of latent herpes simplex virus 1 and varicella-zoster virus DNA in human trigeminal Ganglia at the single-cell level. PG - 14079-87 AB - There remains uncertainty and some controversy about the percentages and types of cells in human sensory nerve ganglia that harbor latent herpes simplex virus 1 (HSV-1) and varicella-zoster virus (VZV) DNA. We developed and validated laser-capture microdissection and real-time PCR (LCM/PCR) assays for the presence and copy numbers of HSV-1 gG and VZV gene 62 sequences in single cells recovered from sections of human trigeminal ganglia (TG) obtained at autopsy. Among 970 individual sensory neurons from five subjects, 2.0 to 10.5% were positive for HSV-1 DNA, with a median of 11.3 copies/positive cell, compared with 0.2 to 1.5% of neurons found to be positive by in situ hybridization (ISH) for HSV-1 latency-associated transcripts (LAT), the classical surrogate marker for HSV latency. This indicates a more pervasive latent HSV-1 infection of human TG neurons than originally thought. Combined ISH/LCM/PCR assays revealed that the majority of the latently infected neurons do not accumulate LAT to detectable levels. We detected VZV DNA in 1.0 to 6.9% of individual neurons from 10 subjects. Of the total 1,722 neurons tested, 4.1% were VZV DNA positive, with a median of 6.9 viral genomes/positive cell. After removal by LCM of all visible neurons on a slide, all surrounding nonneuronal cells were harvested and assayed: 21 copies of HSV-1 DNA were detected in approximately 5,200 nonneuronal cells, while nine VZV genomes were detected in approximately 14,200 nonneuronal cells. These data indicate that both HSV-1 and VZV DNAs persist in human TG primarily, if not exclusively, in a moderate percentage of neuronal cells. FAU - Wang, Kening AU - Wang K AD - Medical Virology Section, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland 20892, USA. kwang@niaid.nih.gov FAU - Lau, Tsz Y AU - Lau TY FAU - Morales, Melissa AU - Morales M FAU - Mont, Erik K AU - Mont EK FAU - Straus, Stephen E AU - Straus SE LA - eng GR - Intramural NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Intramural PL - United States TA - J Virol JT - Journal of virology JID - 0113724 RN - 0 (DNA Primers) RN - 0 (DNA, Viral) RN - 0 (RNA, Viral) SB - IM MH - Base Sequence MH - DNA Primers MH - DNA, Viral/genetics/*isolation & purification/ultrastructure MH - Gene Expression Regulation, Viral MH - Herpesvirus 1, Human/*genetics/isolation & purification MH - Herpesvirus 3, Human/*genetics/isolation & purification MH - Humans MH - Lasers MH - Microdissection/methods MH - Polymerase Chain Reaction MH - RNA, Viral/genetics/isolation & purification MH - Trigeminal Ganglion/*virology PMC - PMC1280223 EDAT- 2005/10/29 09:00 MHDA- 2006/01/28 09:00 PMCR- 2005/11/01 CRDT- 2005/10/29 09:00 PHST- 2005/10/29 09:00 [pubmed] PHST- 2006/01/28 09:00 [medline] PHST- 2005/10/29 09:00 [entrez] PHST- 2005/11/01 00:00 [pmc-release] AID - 79/22/14079 [pii] AID - 1192-05 [pii] AID - 10.1128/JVI.79.22.14079-14087.2005 [doi] PST - ppublish SO - J Virol. 2005 Nov;79(22):14079-87. doi: 10.1128/JVI.79.22.14079-14087.2005.