Aging rewires the jobs your cells do, and that slow transformation can result in scarring, weakness, and organ failure.
Scientists now see a way to push some cells back toward healthier roles, raising hopes for treating age-linked diseases.
Across the body, tissues stay functional because each cell keeps a clear identity and follows the instructions embedded in its genetic material.
At Altos Labs, researchers tracked how aging blurred those instructions across many organs and cell types.
The work was led by Dr. Juan Carlos Izpisua Belmonte, Ph.D., who studies cell reprogramming and tissue repair. By focusing on identity loss, the team treated aging less like wear and tear and more like bad instructions.
Aging cells drift toward scarring
One paper compared gene activity patterns in samples from aging individuals,…