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dbGaP phs001082 T Cell Responses to Varicella Zoster Virus - pht005378.v1.p1

- 22/06/2023 - 6 Formulários, 1 Grupo de itens, 2 Elementos de dados, 1 Idioma
Grupo de itens: pht005378
Principal Investigator: Jorg J. Goronzy, MD PhD, Stanford University, Stanford, CA, USA MeSH: Herpes Zoster,Receptors, Antigen, T-Cell, alpha-beta,Vaccination https://www.ncbi.nlm.nih.gov/projects/gap/cgi-bin/study.cgi?study_id=phs001082 Diversity and size of the antigen-specific T cell receptor (TCR) repertoire are two critical determinants for successful control of chronic infection. Varicella zoster virus (VZV) that establishes latency during childhood is able to escape control mechanisms, in particular with increasing age. We examined the TCR diversity of VZV-specific CD4 T cells in individuals older than 50 years by studying three identical twin pairs and three unrelated individuals before and after vaccination with live attenuated VZV. While all individuals had a small number of dominant T cell clones, the breadth of the VZV-specific repertoire differed markedly among different individuals. A genetic influence was seen for the sharing of individual TCR sequences from antigen-specific cells, but not for repertoire richness or the selection of clonal dominance. VZV vaccination favored the expansion of infrequent VZV-specific TCRs including those from naïve T cells while leaving dominant T cell clones mostly unaffected.

Eligibility

1 Grupo de itens 26 Elementos de dados

pht005379.v1.p1

1 Grupo de itens 3 Elementos de dados

pht005380.v1.p1

1 Grupo de itens 6 Elementos de dados

pht005381.v1.p1

1 Grupo de itens 7 Elementos de dados

pht005382.v1.p1

1 Grupo de itens 5 Elementos de dados

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