By Nicoletta Lanese – LiveScience –
A new mRNA treatment rejuvenates key immune cells in the body, which could help them fight off infections and cancer, a mouse study suggests.
T cells help train other immune cells to fight off disease. But as the body ages, the activity of these T cells declines, and they become less responsive to threats. Additionally, the thymus gland — where T cells mature — begins to shrink with age. These impacts of aging may explain why vaccines and immune-boosting cancer therapies don’t work as well in older adults as they do in younger adults, Nature News reported.
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