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Related Experiment Videos

CFU-F circulating in cord blood.

G Prindull, Z Ben-Ishay, W Ebell

    Blut
    |June 1, 1987
    PubMed
    Summary

    Cord blood contains fewer colony-forming units-fibroblast (CFU-F) than bone marrow. However, these CFU-F generate fibroblasts that support blood cell formation by producing growth factors and releasing stem cells.

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    Area of Science:

    • Hematology
    • Stem Cell Biology
    • Developmental Biology

    Background:

    • Hematopoiesis relies on a supportive microenvironment.
    • Stromal cells play a crucial role in maintaining hematopoietic stem cells.
    • Cord blood is a valuable source of neonatal stem cells.

    Purpose of the Study:

    • To investigate the presence and function of clonogenic stromal cells in human cord blood.
    • To characterize the properties of fibroblasts derived from cord blood colony-forming units-fibroblast (CFU-F).
    • To assess the hematopoietic supportive capacity of cord blood-derived fibroblasts.

    Main Methods:

    • Isolation and culture of colony-forming units-fibroblast (CFU-F) from cord blood and bone marrow.
    • Cytomorphological analysis and immunophenotyping of CFU-F progeny.
    • Assessment of colony-stimulating factor (CSF) production by fibroblasts.
    • Evaluation of secondary colony formation by released cells.

    Main Results:

    • Cord blood exhibits a 10-fold lower CFU-F frequency compared to adult bone marrow.
    • CFU-F progeny were identified as fibroblasts.
    • Cord blood fibroblasts produced CSF, stimulating cord blood CFU-GM colony formation.
    • Fibroblast colonies released clonogenic cells supporting secondary CFU-F and CFU-GM colony formation.

    Conclusions:

    • Fetal blood harbors clonogenic stromal cells (CFU-F).
    • These CFU-F differentiate into fibroblasts with significant hematopoietic supportive functions.
    • Cord blood-derived fibroblasts contribute to the hematopoietic microenvironment.

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