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- W3038132912 abstract "Abstract Aging is associated with a decline in immune function that is not fully understood including vaccine failure. Here we report transcriptomic analysis on B cells from naive or influenza-vaccinated mice of 3 ages: young (15–23 weeks), middle-aged (63–81 weeks), and old mice (103–119 weeks). Our goal was expression profiling of B cells by age and history of vaccination to identify novel changes at the transcriptome level. We observed waning vaccine responses with age. In B cell transcripts, age and vaccination history were both important with notable differences observed in conducted analyses (eg, principal component, gene set enrichment, differentially expressed [DE] genes, and canonical pathways). Only 39 genes were significantly DE with age irrespective of vaccine history. This included age-related changes to box C/D small nucleolar (sno) RNAs, Snord123 and Snord1a. Box C/D snoRNAs regulate rRNAs through methylation and are linked to neurodegenerative, inflammatory, and cancer diseases but not specifically B cells or age. Canonical pathway changes implicated with age irrespective of vaccination history included EIF2, mTOR signaling, p53, Paxillin, and Tec kinase signaling pathways as well as cell cycle checkpoint. Importantly, we identified DE genes and pathways that were progressively altered starting in middle-age (eg, signaling by Rho family GTPases) or only altered in middle-age (eg, sphingosine-1-phosphate signaling), despite minimal differences in the ability of these mice to respond to vaccination compared to younger mice. Our results indicate the importance of vaccination or immune stimulation and analyses of multiple age ranges for aging B cell studies and validate an experimental model for future studies." @default.
- W3038132912 created "2020-07-10" @default.
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- W3038132912 date "2020-08-01" @default.
- W3038132912 modified "2023-09-26" @default.
- W3038132912 title "Unique Transcriptome Changes in Peripheral B Cells Revealed by Comparing Age Groups From Naive or Vaccinated Mice, Including snoRNA and <i>Cdkn2a</i>" @default.
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- W3038132912 doi "https://doi.org/10.1093/gerona/glaa165" @default.
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