The adult brain can repair itself better than scientists thought
The adult brain may be far better at repairing itself than scientists once believed. In mice, researchers discovered a special group of support cells called astrocytes that respond to damaged brain tissue by rebuilding lost cellular networks. Rather than simply moving into the injured area, these cells perform a remarkable maneuver: they create new nuclei and send them traveling through long…
Adult brains may possess a more robust capacity for self-repair than previously thought, according to a study from the University of Zurich. Researchers discovered that particular support cells, called astrocytes, can regrow in a unique manner after injury or autoimmune diseases. Typically, it was believed that once astrocytes were lost, the adult brain could not fully replace them.
However, the study identified specialized regenerative astrocytes that gather around damaged areas and help rebuild the lost network. These cells do not just divide, but also transport newly formed nuclei through their extensions to repopulate the damaged tissue. This unexpected mechanism adds a new layer to our understanding of brain repair after certain types of damage.
By identifying the genes and signaling pathways activated during this process, the research opens up potential avenues for future therapies to enhance recovery from neurological disorders caused by astrocyte loss.
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