Thymus regrowth research targets ageing process
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Researchers are racing to regrow the thymus, a transient immune organ, in hopes of slowing ageing. The thymus, which shrinks after childhood, plays a key role in immune function. Early trials show potential for rejuvenation.
The Thymus Role
The thymus, located behind the breastbone, produces T-cells essential for fighting infections. It begins shrinking after puberty, a process linked to immune decline in older adults. Researchers at institutions like the University of California, San Francisco, are exploring ways to reverse this atrophy.
Regrowth Approaches
Two main strategies are under investigation: gene therapy to stimulate thymic regeneration and hormone treatments to restore its function. A 2025 study in Nature Aging showed that blocking a protein called IL-7 in mice increased thymus size by 30%. Human trials are expected to begin in 2027.
Longevity Implications
If successful, thymus regrowth could extend healthspan by bolstering immunity in the elderly. The global anti-ageing market, valued at $63 billion in 2025, is closely watching these developments. However, experts caution that benefits may take decades to prove.
What's Next
The first human trial for thymus gene therapy is scheduled for 2027 at Stanford University. It remains unclear whether the approach will translate from mice to humans or yield meaningful longevity gains.
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Thymus regrowth research targets ageing process
