Scientists show that so-called senescent cells, i.e., cells that have permanently stopped dividing, boost production of new muscle cells to enhance regeneration of lost limbs in salamanders. Senescent cells, linked to aging and disease, may also have regenerative properties. Studying salamanders, researchers found senescent cells accelerate limb regeneration by signaling muscle fibers to dedifferentiate, potentially … Continue reading From Aging to Regeneration: The Unexpected Benefits of Senescent “Zombie” Cells