Abstract:Aging coincides with major changes in brain immunity that aid in a decline in neuronal function. Here, we postulate that systemic, pro-aging factors contribute to immunological changes that occur within the brain during aging. To investigate this hypothesis, we first characterized the immune landscape upon aging in 20-month-old mice using cytometry by time-of-flight (CyTOF) and observed that memory T cells expanded in the circulation and that specifically effector CD8+ T cells expressing programmed cell death … Show more
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