Scientists find a youth protein that helps aging brain cells act young again
Researchers have identified the protein TIMP2 as a key factor in maintaining the health of microglia, the brain's immune cells. Restoring this protein in older mice helped the cells clear debris and reduce inflammation, suggesting a potential target for treating neurodegenerative diseases.
Why it matters
This research offers a promising avenue for addressing age-related cognitive decline and Alzheimer's disease by targeting the brain's natural defense systems.
A protein associated with youth may help aging brain cells regain some of their lost abilities. Scientists at the Icahn School of Medicine at Mount Sinai have discovered that TIMP2 plays an important role in keeping the brain's immune cells healthy, offering new clues about how the brain changes with age.
In a study published in Nature Communications , researchers found that removing TIMP2 caused brain immune cells, known as microglia, to develop characteristics linked to aging and neurodegenerative disease. When the scientists restored TIMP2 in the bloodstream of older mice, these cells became better at removing cellular debris and showed fewer molecular signs of inflammation and other potentially harmful changes.
The discovery suggests that proteins associated with youth may help preserve the brain's natural defenses as it ages. It also identifies TIMP2 as a potentially important factor in maintaining healthy immune activity in the brain.
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