Table 1. Novel strategies to improve engraftment.

Strategy	Mechanism	Investigators	Number	Days to absolute neutrophil count > 500
Intrabone marrow injection	Homing	Kurita et al. 21	15	7
Nicotinamide	Expansion	Horwitz et al. 26	11	13
Fucosylation	Homing	Popat et al. 22	7	14
Notch	Expansion	Delaney et al. 27	10	16