Sökning: "multipotent progenitor"

Visar resultat 1 - 5 av 38 avhandlingar innehållade orden multipotent progenitor.

  1. 1. Mechanisms of survival and maintenance of Hematopoietic Stem Cells and Multipotent Progenitor Cells

    Författare :Richard Karlsson; Institutionen för translationell medicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; extracellulära vätskor; Hematologi; extracellular fluids; Haematology; hypoxia.; forkhead; Akt PKB; Bcl-2; apoptosis; Flt3; FL; c-kit; KL; cytokines; Hematopoiesis; progenitor;

    Sammanfattning : Hematopoietic stem cells and progenitor cells are maintained in the bone marrow microenvironment, where factors including soluble and membrane-bound cytokines influence the processes of self-renewal, proliferation and differentiation. Two nonreduntant cytokines with effects on hematopoiesis, Kit Ligand (KL) and Flt3 Ligand (FL), signal via related tyrosine kinase receptors, c-kit and Flt3. LÄS MER

  3. 2. Regulation of Apoptosis in Hematopoietic Progenitor Cells: Involvement of Different Signaling Pathways

    Författare :Maria Kraft; Institutionen för translationell medicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cytokines; apoptosis; cell cycle; c-Kit; Flt3; Flt3-ITD; Akt; Bcl-2; FoxO3; mouse; hematopoiesis; progenitor;

    Sammanfattning : Proliferation, differentiation, and survival of hematopoietic stem cells and multipotent progenitor cells are regulated by cytokines and cell-cell interactions. Kit ligand (KL) and Flt3 ligand (FL) have pleiotropic effects, promotes survival, but are nonredundant. LÄS MER

  4. 3. Hematopoietic stem and progenitor cells and potentials for application in fetal cell replacement therapy

    Författare :Karina Liuba; Lund Obstetrik och gynekologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; in utero hematopoietic cell transplantation; hematopoietic stem cell; multipotent progenitor; fetal therapy; heterotypic cell fusion;

    Sammanfattning : Fetal cell replacement therapy or in utero hematopoietic cell transplantation (IUHCT) is proposed as a non-myeloablative alternative to bone marrow transplantation (BMT) for a number of inborn immunologic, hematologic and metabolic disorders. IUHCT represents the method through which variable amounts of natural or genetically modified hematopoietic cells can be transferred to the fetal recipient in hope of correcting the disorder and preventing postnatal permanent organ damage. LÄS MER

  5. 4. Peripheral nerve glia as multipotent progenitors in craniofacial development

    Författare :Maryam Khatibi Shahidi; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Craniofacial development is complex. Numerous populations of progenitor cells coordinate activities to produce an array of highly integrated tissues inside the developing head. However, it is not clear how some key multipotent progenitors continue to exist in late developing head compartments. LÄS MER

  7. 5. Engineering more efficient multipotent mesenchymal stromal (stem) cells for systemic delivery as cellular therapy

    Författare :Guido Moll; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :multipotent mesenchymal stromal stem cell;

    Sammanfattning : Do mesenchymal progenitor cells naturally circulate in vivo? Are they fundamentally compatible with blood? What mechanism allows them to be in contact with blood? How do we make therapeutic cells with blood-compatible properties? Can we optimise their survival and therapeutic function upon systemic delivery? How should we best isolate and condition therapeutic multipotent mesenchymal stromal (stem) cells (MSCs) before infusion, to achieve an optimum and sustainable clinical response in patients? This thesis covers many aspects related to these questions. It describes how MSCs interact with the instant blood-mediated inflammatory reaction (IBMIR) upon infusion. LÄS MER