Extremely important. I was answering the question when i hit a wrong button, and it went off into the clouds......What else is new. In case we can't find it, the summary is that if we can regenerate our own very specific tissue, there will be no such thing as rejection. The best and purest therapies in medicine have always been when we enhance or stimulate in some way our own body's remarkable ability to heal itself.
Likely the future. Likely the future of medicine.