نتایج جستجو برای: hemangioblast
تعداد نتایج: 182 فیلتر نتایج به سال:
Relatively little is known about the modulators of the vascular endothelial growth factor A (VEGF-A)/Flk1 signaling cascade. To functionally characterize this pathway, VEGF-A stimulation of endothelial cells was performed. VEGF-A-mediated Flk1 activation resulted in increased translocation of the endogenous Fps/Fes cytoplasmic tyrosine kinase to the plasma membrane and increased tyrosine phosph...
OBJECTIVE There is constant difficulty in obtaining adequate supplies of blood components, as well as disappointing performance of "universal" red blood cells. Advances in somatic cell reprogramming of human-induced pluripotent stem cells (hiPSCs) have provided a valuable alternative source to differentiate into any desired cell type as a therapeutic promise to cure many human disease. MATERI...
Autologous peripheral blood stem cell mobilization is increasingly applied in the treatment of hematological malignancies. Despite the frequent clinical use in a setting of residual disease, it is not known whether mobilization of hematopoietic stem cells might facilitate tumor outgrowth in vivo. In the bone marrow, a bipotential precursor for hematopoietic and endothelial cells called hemangio...
Autologous peripheral blood stem cell mobilization is increasingly applied in the treatment of hematological malignancies. Despite the frequent clinical use in a setting of residual disease, it is not known whether mobilization of hematopoietic stem cells might facilitate tumor outgrowth in vivo. In the bone marrow, a bipotential precursor for hematopoietic and endothelial cells called hemangio...
BMP signaling balances murine myeloid potential through SMAD-independent p38MAPK and NOTCH pathways.
Bone morphogenetic protein (BMP) signaling regulates early hematopoietic development, proceeding from mesoderm patterning through the progressive commitment and differentiation of progenitor cells. The BMP pathway signals largely through receptor-mediated activation of Mothers Against Decapentaplegic homolog (SMAD) proteins, although alternate pathways are modulated through various components o...
Relatively little is known about the modulators of the vascular endothelial growth factor A (VEGF-A)/Flk1 signaling cascade. To functionally characterize this pathway, VEGF-A stimulation of endothelial cells was performed. VEGF-A–mediated Flk1 activation resulted in increased translocation of the endogenous Fps/Fes cytoplasmic tyrosine kinase to the plasma membrane and increased tyrosine phosph...
Overexpression of miRNA, miR-24, in mouse hematopoietic progenitors increases monocytic/ granulocytic differentiation and inhibits B cell development. To determine if endogenous miR-24 is required for hematopoiesis, we antagonized miR-24 in mouse embryonic stem cells (ESCs) and performed in vitro differentiations. Suppression of miR-24 resulted in an inability to produce blood and hematopoietic...
In the adult, platelets are derived from unipotential megakaryocyte colony-forming cells (Meg-CFCs) that arise from bipotential megakaryocyte/erythroid progenitors (MEPs). To better define the developmental origin of the megakaryocyte lineage, several aspects of megakaryopoiesis, including progenitors, maturing megakaryocytes, and circulating platelets, were examined in the murine embryo. We fo...
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