Receptor Blocker Reverses Aging in Mice | Science News

Science News Today | 2 Min News | The Daily News Now! · Sep 3, 2026 · 1m

Scientists have uncovered a surprising link between aging and immune system dysfunction, pinpointing tissue-resident macrophages as key players. As we age, these immune cells lose their ability to clear out damaged neutrophils due to overstimulation by an inflammatory hormone, leading to chronic inflammation and accelerated aging across organs like the brain, heart, and muscles. But here’s the breakthrough: blocking a specific receptor on these macrophages restored their cleanup function in mice, reversing signs of aging—making them leaner, stronger, and smarter. The same pattern was seen in…