Immune Cell Map Reveals Why Aging Trajectories Diverge
Researchers have developed a map of human immune aging by analyzing millions of immune cells from diverse cohorts. The study identifies specific blood markers that can predict whether an individual is on a healthy or unhealthy aging trajectory.
Why it matters
This discovery could lead to early-warning diagnostic tests that identify disease risks years before clinical symptoms appear.
While birthday candles measure the number of years someone has lived, they don't always tell the full story about someone's health. Two people born on the same day can have immune systems that age differently, leaving some older adults with resilient defense systems and others with dysfunctional immune systems that increase their risk for age-related diseases.
A study led by researchers at Washington University School of Medicine in St. Louis, Nationwide Children's Hospital in Ohio and King's College London in the United Kingdom has created a map of human immune aging that helps decode these different trajectories.
The findings, published Oct. 9 in Immunity, show that a ratio between two immune cell types can reveal whether someone stays healthy or may face risk of future disease.
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