Abstract
Naïve T cells are critical for protection against emerging viral and bacterial infections. However, the ability of these cells to elicit effective long-term immune responses declines with age and contributes to increased disease susceptibility in older individuals. This decline has been linked with the breakdown of cellular quiescence that causes partial differentiation of naïve T cells with age, but the underlying mediators of this breakdown are unclear. Comparisons to stem cell quiescence in mice and man offer insight into naïve T cells and aging. However, the utilization of single cell technologies in combination with advances in the biology of human tissue aging is needed to provide further understanding of naïve T cell complexity and quiescence breakdown with age.
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