Just a few weeks ago, a girl in Peoria, Ill., got an experimental windpipe that used a synthetic scaffold covered in stem cells from her own bone marrow. More than a dozen patients have had similar operations.
Dozens of people are thriving with experimental bladders made from their own cells, as are more than a dozen who have urethras made from their own bladder tissue. A Swedish girl who got a vein made with her marrow cells to bypass a liver vein blockage in 2011 is still doing well, her surgeon says.
In some cases the idea has even become standard practice. Surgeons can use a patient’s own cells, processed in a lab, to repair cartilage in the knee. Burn victims are treated with lab-grown skin.