To isolate soluble factors expressed in early phases of hematopoietic differentiation, we applied the signal sequence trap method to the in vitro murine hematopoietic differentiation system, in which ES cells are cocultured with OP-9 stroma cells. This strategy allowed us to isolate cDNA for a secreted protein, ESOP-1, of 160 amino acids, the sequence of which shows 64% identity with human ESOP...

Hematopoietic cell generation in the midgestation mouse embryo occurs through the natural transdifferentiation of temporally and spatially restricted set of hemogenic endothelial cells. These cells take on hematopoietic fate in the aorta, vitelline and umbilical arteries and appear as hematopoietic cell clusters that emerge from the vascular wall. Genetic and live imaging data have supported th...

Blood development has been highly conserved during evolution. Hematopoietic cells in amphibian and fish embryos, as in mammalian embryos, emerge and progressively differentiate in several locations. Hematopoiesis, including of the immune system, is similar in the amphibian, Xenopus, to mammals and the embryos are ideal for tissue transplantation and lineage labelling experiments, which have ena...

introduction: allogeneic hematopoietic cell transplantation (hsct) is the only therapeutic modality capable of correcting the hematologic manifestations of fanconi anemia (fa). the development  of well  tolerated,  immunosuppressive  conditioning  regimens  for fa patients  undergoing hsct has proven to be a rather challenging task for hematologists. methods: we analyzed the outcome of 30 fa pa...

conclusions in iran, hsct has been successfully adapted in routine clinical care. recently, new methods such as double cord blood and haploidentical transplantation have been used to treat many life-threatening diseases. results about 78.2% of the patients (2530 of 3237) remained alive between one to 211 months after stem cell transplantation. nearly, 21.8% (707) of our patients died after stem...

Mast cells are bone marrow derived hemopoietic (Kitamura, et al. [1-3]). The mast cell is one of the important in immune system. It from multipotent hematopoietic progenitor cells. produces a number cytokines to augment responses, growth, and differentiation other