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Long-term human bone marrow cultures

W G Hocking, D W Golde

    Blood
    |July 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    This study adapted a flask culture system for prolonged human bone marrow growth. The system supports hematopoietic and lymphoid progenitor proliferation and differentiation in vitro.

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    Area of Science:

    • Hematology
    • Cell Biology
    • Immunology

    Background:

    • Prolonged in vitro culture of murine bone marrow is achievable.
    • Human bone marrow culture presents unique challenges for sustained cell growth.

    Purpose of the Study:

    • To adapt a murine bone marrow culture technique for human samples.
    • To establish a system for studying human hematopoietic and lymphoid cell proliferation and differentiation in vitro.
    • To investigate stromal cell interactions with progenitor cells.

    Main Methods:

    • Flask culture system adapted for human bone marrow.
    • Assessment of colony-forming units granulocyte-macrophage (CFU-GM) and colony-forming units erythroid (CFU-E) viability.
    • Morphological evaluation of granulopoiesis and erythropoiesis.

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  • Functional assessment of T lymphocytes.
  • Characterization of the adherent stromal cell population.

    • Main Results:

    • Sustained culture of human bone marrow for up to 9 weeks.
    • CFU-GM maintained for 4-9 weeks; CFU-E for 1.5-2.5 weeks.
    • Granulopoiesis observed for 4-6 weeks; T lymphocytes functional for at least 5 weeks.
    • Adherent cells include macrophages and fibroblast-like cells; fat cells are not prominent.

    Conclusions:

    • The adapted flask culture system effectively supports prolonged in vitro growth of human bone marrow.
    • This system enables the study of human hematopoietic cell proliferation, differentiation, and stromal cell interactions.
    • Provides a valuable tool for research in human hematopoiesis and immunology.