Tissue Engineering will give limb regeneration

Ellen Heber-Katz forecasts the future

• 18 November 2006

I believe that the day is not far off when we will be able to prescribe drugs that cause severed spinal cords to heal, hearts to regenerate and lost limbs to regrow. People will come to expect that injured or diseased organs are meant to be repaired from within, in much the same way that we fix an appliance or automobile: by replacing the damaged part with a manufacturer-certified new part.

Advances in heart regeneration are around the corner, digits will be regrown within five to ten years, and limb regeneration will occur a few years later. Central nervous system repair will occur first with the retina and optic nerve and later with the spinal cord. Within 50 years whole-body replacement will be routine.