Human Gene Set: QI_PBMC_ZOSTAVAX_AGE_50_75YO_CORRELATED
      _WITH_T_CELL_RESPONSES_EXPANSION_AND
      _CONTRACTION_1D_NOT_INFORMATIVE_OF_LONG
      _TERM_RESPONSES_POSITIVE


Standard name QI_PBMC_ZOSTAVAX_AGE_50_75YO_CORRELATED_WITH_T_CELL_RESPONSES_EXPANSION_AND_CONTRACTION_1D_NOT_INFORMATIVE_OF_LONG_TERM_RESPONSES_POSITIVE
Systematic name M40978
Brief description Genes positively correlated with T cell responses (expansion and contraction, not long term) in peripheral blood mononuclear cell in seniors (50-75) after exposure to Zostavax , time point 1D. Comment: (A) Network of genes for which the change in expression correlated with both expansion and contraction and therefore not with long-term outcome
Full description or abstract Vaccination with attenuated live varicella zoster virus (VZV) can prevent zoster reactivation, but protection is incomplete especially in an older population. To decipher the molecular mechanisms underlying variable vaccine responses, T- and B-cell responses to VZV vaccination were examined in individuals of different ages including identical twin pairs. Contrary to the induction of VZV-specific antibodies, antigen-specific T cell responses were significantly influenced by inherited factors. Diminished generation of long-lived memory T cells in older individuals was mainly caused by increased T cell loss after the peak response while the expansion of antigen-specific T cells was not affected by age. Gene expression in activated CD4 T cells at the time of the peak response identified gene modules related to cell cycle regulation and DNA repair that correlated with the contraction phase of the T cell response and consequently the generation of long-lived memory cells. These data identify cell cycle regulatory mechanisms as targets to reduce T cell attrition in a vaccine response and to improve the generation of antigen-specific T cell memory, in particular in an older population.
Collection C7: Immunologic Signature
      VAX: HIPC Vaccine Response
Source publication Pubmed 27764254   Authors: Qi Q,Cavanagh MM,Le Saux S,Wagar LE,Mackey S,Hu J,Maecker H,Swan GE,Davis MM,Dekker CL,Tian L,Weyand CM,Goronzy JJ
Exact source Suppl Fig 2A
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External links https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5072604/bin/ppat.1005892.s008.docx
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Organism Homo sapiens
Contributed by HIPC SIGNATURES (NIAID/HIPC SIGNATURES)
Source platform HUMAN_GENE_SYMBOL
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Version history 7.3: First Introduced.

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