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Related Experiment Videos

A rapid method for obtaining murine bone marrow cells in high yield.

M Levite1, A Meshorer, Y Reisner

  • 1Department of Biophysics, Weizmann Institute of Science, Rehovot, Israel.

Bone Marrow Transplantation
|September 1, 1991
PubMed
Summary

A new method efficiently extracts more murine bone marrow cells by breaking bones, offering a faster, viable alternative to traditional flushing for research and transplantation.

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Area of Science:

  • * Hematology
  • * Immunology
  • * Cell Biology

Background:

  • * Conventional murine bone marrow extraction relies on flushing, which can be time-consuming and yield limited cell quantities.
  • * Optimizing bone marrow cell yield and viability is crucial for preclinical research and transplantation studies.
  • * Existing methods may lead to contamination from surrounding tissues.

Purpose of the Study:

  • * To introduce a novel, rapid, and efficient method for isolating murine bone marrow cells.
  • * To compare the yield, viability, and purity of bone marrow cells obtained by the new method versus the conventional flushing technique.
  • * To evaluate the functional capacity of bone marrow cells obtained via the new method in transplantation models.

Main Methods:

  • * Murine femoral and tibial bones were partially fractured using an Omni-Mixer in phosphate-buffered saline.

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  • * Bone marrow cells were extruded into the suspension, followed by collection and processing.
  • * Cell viability and differential counts were assessed, and T-cell-depleted bone marrow was used for transplantation studies.

    • Main Results:

    • * The extrusion method yielded up to twice the number of bone marrow cells compared to flushing.
    • * Over 95% cell viability was achieved with the new method, with comparable differential counts to the flushing method.
    • * Transplantation of extruded bone marrow cells resulted in stable chimeras with effective hematopoietic reconstitution, and no observed contamination.

    Conclusions:

    • * The described extrusion method provides a significantly more efficient and time-sparing alternative for obtaining murine bone marrow cells.
    • * This technique ensures high cell viability and purity, making it suitable for transplantation and other research applications.
    • * The method's efficacy and potential applicability in other animal models warrant further investigation.