Blooding

Is there no end to the versatility of stem cells? It has recently been found that some blood-borne stem cells can be programmed to repair or even grow new blood vessels (https://www.genengnews.com/gen-news-highlights/stem-cells-in-blood-might-be-used-to-grow-new-blood-vessels/81256279). This might well be a source of medical interventions, especially in areas that are poorly vascularised.