Researchers have identified a population of cells that can start the process of programmed cell death and then survive it. Instead of completing the usual cell-death program, these cells appear to switch into a repair role and help rebuild damaged tissue quickly.
The team found that descendants of these surviving cells are far more resistant to later damage. That lasting change reveals a mechanism that could potentially be harnessed to improve healing after injury.
The discovery opens avenues for therapies aimed at faster tissue repair. It also suggests the same behavior may carry risks, though the source release does not describe what those risks might be.