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Related Experiment Videos

A method to enrich mouse hematopoietic stem cells.

J E Barker, E C McFarland

    Blood
    |October 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Researchers developed a method to enrich spleen colony-forming cells, a type of hematopoietic stem cell, by sevenfold. This technique preserves stem cell function, crucial for treating anemia and repopulating bone marrow.

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    Area of Science:

    • Hematology
    • Stem Cell Biology
    • Cellular Fractionation

    Background:

    • Hematopoietic stem cells (HSCs) are vital for blood cell formation and can be quantified by their ability to form spleen colonies in irradiated mice.
    • Assessing and isolating functional HSCs is critical for regenerative medicine and understanding hematopoiesis.

    Purpose of the Study:

    • To develop and validate a technique for significantly enriching spleen colony-forming cells (SCFCS) from mouse bone marrow.
    • To confirm that the enrichment process preserves the long-term pluripotency and functionality of HSCs.

    Main Methods:

    • Bone marrow cells were separated into "red" and "white" fractions using Ficoll-Paque density gradient centrifugation.
    • The "white" cell fraction underwent further density gradient centrifugation using 75% Percoll to concentrate SCFCS.

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    Main Results:

    • A seven-fold enrichment of spleen colony-forming cells was achieved using the described two-step density gradient centrifugation method.
    • Enriched SCFCS demonstrated the ability to repopulate bone marrow and cure anemia in WBB6F1-W/Wv mice, indicating preserved stem cell function.
    • The enrichment procedure was effective for both normal and thalassemic mouse bone marrow cells.

    Conclusions:

    • The developed technique effectively enriches functional, long-term pluripotent hematopoietic stem cells.
    • This method offers a valuable tool for stem cell research, potentially aiding in the development of therapies for hematological disorders.