To reveal the early events and dynamics of hematopoietic reconstitution in living animals in real-time, we used bioluminescence imaging to monitor engraftment from single luciferase-labeled hematopoietic stem cells (HSC) in irradiated recipients. Transplanted HSC generated discrete foci in the spleen and bone marrow (BM), at a frequency that correlated with BM compartment size. Initially detected foci could expand locally, seed other sites in BM or spleen, and/or recede with different kinetics. These studies reveal dynamic and variable patterns of engraftment from highly purified HSC and indicate that the final overall contribution of individual HSC to hematopoietic chimerism does not depend on the specific site of initial engraftment and expansion.
SciCrunch is a data sharing and display platform. Anyone can create a custom portal where they can select searchable subsets of hundreds of data sources, brand their web pages and create their community. SciCrunch will push data updates automatically to all portals on a weekly basis. User communities can also add their own data to SciCrunch, however this is not currently a free service.