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Related Experiment Videos

[Study on large-scale CD34+ cell enrichment using immunomagnetic isolation apparatus].

Hong Liu1, Sui Cao, Xiu-Bao Ren

  • 1Department of Immunology, Affiliated Hospital of Oncology, Tianjing Medical University, Tianjing 300060, China. abcd-lh@eyou.com

Zhongguo Shi Yan Xue Ye Xue Za Zhi
|January 6, 2005
PubMed
Summary

The Isolex 300i effectively enriches large quantities of CD34(+) cells for clinical use. This method ensures high purity and biological viability for stem cell transplantation.

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Area of Science:

  • Hematology
  • Immunology
  • Biotechnology

Context:

  • Autologous peripheral blood stem cell transplantation requires efficient methods for collecting and purifying CD34(+) cells.
  • Large-scale CD34(+) cell enrichment is crucial for successful transplantation outcomes.

Purpose:

  • To evaluate the suitability of the Isolex 300i immunomagnetic isolation system for large-scale CD34(+) cell purification.
  • To assess the purity, yield, and biological viability of CD34(+) cells processed by the Isolex 300i.

Summary:

  • The Isolex 300i processed large volumes of peripheral blood stem cells, yielding (2.0-3.0) x 10(8) CD34(+) cells with 75-85% purity and 40-65% yield.
  • Enriched CD34(+) cells demonstrated robust colony-forming ability and expanded 2-3 fold in vitro with specific growth factors, confirming their biological viability.

Related Experiment Videos

  • Flow cytometry confirmed CD34(+) cell phenotypes, while colony-forming and cell expansion assays validated their functional capacity.

    • Impact:

    • The Isolex 300i system is suitable for clinical applications requiring the enrichment of substantial numbers of viable CD34(+) cells.
    • This study validates a scalable method for obtaining high-quality CD34(+) cells for transplantation.
    • The findings support the use of immunomagnetic separation for efficient and reliable stem cell processing in clinical settings.