In cooperation with the German Cancer Research Centre (DKFZ), it was demonstrated that coinjection of USSC together with CD34+ cells in a NOD/SCID mice model enhanced the engraftment of the human haematopoietic cells to the bone marrow as compared to CD34+ cells alone [18], while the stromal cells themselves did not engraft into the host. The gene discussed is CD34; the disease is cancer.