CT‑based measures of thymus size and composition can be scored to produce a 'thymic health' metric that correlates with lower all‑cause mortality and better cancer immunotherapy outcomes; lifestyle factors (smoking, obesity, inactivity) are associated with worse thymic health. The metric could become a biomarker for immune aging and a stratifier in clinical trials and prevention programs.
— If validated, a thymic‑health biomarker would shift aging and cancer policy by adding an imaging‑based indicator to prioritize prevention, tailor immunotherapy, and target immune‑restorative interventions.
Jake Currie
2026.03.20
100% relevant
Mass General Brigham researchers used AI to score thymuses on >2,500 Framingham CT scans (finding ~50% lower overall death risk for high scores), and a separate study of >1,200 lung cancer patients linked thymic health to immunotherapy outcomes.
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