Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2007-10-8
pubmed:abstractText
The latent persistence of herpes simplex virus type 1 (HSV-1) in human trigeminal ganglia (TG) is accompanied by a chronic CD8 T-cell infiltrate. The focus of the current work was to look for HSV-1 transcription activity as a potential trigger of the immune response and to characterize the immune cell infiltrates by this feature. We combined in situ hybridization, laser cutting microscopy, and single cell RT-PCR to demonstrate the expression of the HSV-1 immediate early (IE) genes ICP0 and ICP4 in human trigeminal neurons. Using CDR3 spectratyping, we showed that the infiltrating T-cells are clonally expanded, indicating an antigen-driven immune response. Moreover, the persisting CD8+ T-cells had features of the memory effector phenotype. The voltage-gated potassium channel Kv1.3, a marker of chronic activated memory effector cells, and the chemokines CCL5 and CXCL10 were expressed by a subpopulation of infiltrating cells. The corresponding chemokine receptors CCR5 and CXCR3 were co-expressed on virtually all CD8 T-cells. In addition, T-cells expressed granzymes and perforin. In contrast to animal models of HSV-1 latency, hardly any FoxP3-positive regulatory T-cells were detected in human TG. Thus, HSV-1 IE genes are expressed in human TG and the infiltrating T-cells bear several characteristics that suggest viral antigenic stimulation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1015-6305
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
389-98
pubmed:meshHeading
pubmed-meshheading:17784877-Adult, pubmed-meshheading:17784877-Aged, pubmed-meshheading:17784877-Aged, 80 and over, pubmed-meshheading:17784877-CD8-Positive T-Lymphocytes, pubmed-meshheading:17784877-Chemokines, pubmed-meshheading:17784877-Chemotaxis, Leukocyte, pubmed-meshheading:17784877-Clone Cells, pubmed-meshheading:17784877-Female, pubmed-meshheading:17784877-Gene Expression Regulation, Viral, pubmed-meshheading:17784877-Genes, Immediate-Early, pubmed-meshheading:17784877-Genes, Viral, pubmed-meshheading:17784877-Herpes Simplex, pubmed-meshheading:17784877-Herpesvirus 1, Human, pubmed-meshheading:17784877-Humans, pubmed-meshheading:17784877-Immunologic Memory, pubmed-meshheading:17784877-Kv1.3 Potassium Channel, pubmed-meshheading:17784877-Male, pubmed-meshheading:17784877-Middle Aged, pubmed-meshheading:17784877-Neurons, Afferent, pubmed-meshheading:17784877-Phenotype, pubmed-meshheading:17784877-Receptors, Chemokine, pubmed-meshheading:17784877-T-Lymphocytes, pubmed-meshheading:17784877-Trigeminal Ganglion, pubmed-meshheading:17784877-Virus Latency
pubmed:year
2007
pubmed:articleTitle
Presence of HSV-1 immediate early genes and clonally expanded T-cells with a memory effector phenotype in human trigeminal ganglia.
pubmed:affiliation
Institute of Clinical Neuroimmunology, University Clinic, Munich, Germany. tsderfus@neuro.mpg.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't