Recent research identifies the proteins that kickstart limb formation in embryos. Just 3 gene-transcription factor proteins in mice were enough to convert certain non-limb-forming stem cells into limb-forming versions. The findings are a next step toward regenerative medicine in limbs.

Recent research identifies the proteins that kickstart limb formation in embryos. Just 3 gene-transcription factor proteins in mice were enough to convert certain non-limb-forming stem cells into limb-forming versions. The findings are a next step toward regenerative medicine in limbs.