Study Finds Exercise Restores Age‑Related Decline in Muscle‑Derived Cancer‑Suppressing Vesicles
Scientists have discovered that aging muscle may contribute to cancer growth by releasing fewer extracellular vesicles, tiny particles that cells use to communicate with one another. Their study also found that composition of these particles changes with age, weakening protective signals that help suppress tumor development. Encouragingly, exercise appears to restore this protective function. Published in Nature Communications , the findings offer fresh insights into healthy
Researchers discovered that aging muscle cells release fewer extracellular vesicles, which help prevent tumor growth. The vesicles also lose micro‑RNA miR‑7a‑5p, a molecule that restrains cancer development. In older adults, especially those with sarcopenia, this decline may promote tumor progression. The team showed that regular exercise can reactivate vesicle production and restore miR‑7a‑5p levels. The findings, published in Nature Communications, suggest exercise as a potential strategy for cancer prevention in seniors. The study points to new biomarkers and therapeutic targets tailored to older patients.
It links physical activity to reduced cancer risk in aging populations.
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