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Related Experiment Videos

CD34+ selected cells in clinical transplantation

R H Collins1

  • 1Charles A. Sammons Cancer Center, Baylor University Medical Center, Dallas, TX 75246.

Stem Cells (Dayton, Ohio)
|November 1, 1994
PubMed
Summary

This study reviews methods for isolating CD34+ cells, crucial for stem cell transplantation. These purified cells show promise in various therapeutic applications, including cancer treatment and gene therapy.

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Area of Science:

  • Hematology
  • Immunology
  • Cell Biology

Background:

  • The CD34 antigen is a surface marker for early hematopoietic stem cells and progenitors.
  • CD34+ cells constitute about 1% of bone marrow mononuclear cells.

Purpose of the Study:

  • To review current methods for purifying CD34+ cells from clinical samples.
  • To discuss the potential applications of purified CD34+ cells in stem cell transplantation.

Main Methods:

  • Monoclonal antibody-based techniques are used for isolation.
  • Methods include biotin-avidin affinity, panning, and immunomagnetic beads.
  • Current methods recover approximately 50% of CD34+ cells with 20-90% purity.

Main Results:

  • Clinical trials confirm hematopoietic recovery using CD34+ selected cells for high-dose therapy support.
  • Purified CD34+ cells are effective in supporting hematopoietic recovery.

Conclusions:

  • CD34+ cell purification methods are established for clinical use.
  • These cells have significant potential in stem cell transplantation, including tumor cell purging, T cell depletion, stem cell expansion, and gene therapy.

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