Summarized by Masters of Longevity from Nature Aging.
Lymph node aging and T cell changes explored in a middle‑age immune‑aging study; readers will find insights into sex‑biased mechanisms and therapeutic implications.
Key Takeaways
- The immune system’s ability to recognize and respond to a wide array of antigens is directly linked to the number of naive T cells and their clonotypic diversity.
- With age, the naive T cell compartment declines due to progressive thymic involution and ongoing peripheral attrition via differentiation into memory and senescence-prone effector cells 6 , 7.
- The decline in naive T cells has been linked to reduced vaccine responses, impaired tumor surveillance and reduced efficacy of immunotherapies 6 , 8.
