Scientists Say They’ve Invented a Serum That Activates a Dormant Ability to Regrow Lost Limbs in Mammals

Texas A&M researchers report a two-step, serum-driven method that shifts mammalian cells away from scar formation and toward regeneration.

In lab mice, the approach reportedly enabled regrowth of bones, joints, and ligaments in a limb-like pattern inspired by salamanders.

The work, published in Nature Communications, centers on inducing a blastema-like regeneration program in mammals.

If confirmed, the findings could lead to better recovery after traumatic injuries and a new way to think about tissue reprogramming.