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Related Experiment Videos

Stem cell plasticity.

Uma Lakshmipathy1, Catherine Verfaillie

  • 1Stem Cell Institute, Hematology, Oncology and Transplantation Division, Department of Medicine, University of Minnesota, 420 Delaware Street, Minneapolis, MN 55455, USA.

Blood Reviews
|December 2, 2004
PubMed
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Stem cell plasticity allows cells to differentiate beyond their original tissue. This review critically evaluates evidence for stem cell plasticity, focusing on multi-lineage differentiation, functionality, and engraftment.

Area of Science:

  • Stem Cell Biology
  • Developmental Biology
  • Cellular Plasticity

Background:

  • The traditional view held that tissue-specific stem cells differentiate only within their resident lineages.
  • Emerging research suggests significant stem cell plasticity, enabling cells to cross lineage boundaries.
  • Ambiguity in defining plasticity and inconsistent experimental results have created confusion in the field.

Purpose of the Study:

  • To critically evaluate existing studies reporting stem cell plasticity.
  • To establish rigorous criteria for defining and confirming stem cell plasticity.
  • To address the confusion and reproducibility issues in stem cell plasticity research.

Main Methods:

  • Review and critical analysis of published studies on stem cell plasticity.

Related Experiment Videos

  • Application of three strict criteria: single-cell multi-lineage differentiation, in vitro/in vivo functionality, and robust engraftment.
  • Assessment of the validity and reproducibility of reported plasticity findings.

    • Main Results:

    • Many studies reporting stem cell plasticity lack clear definitions and rigorous validation.
    • Inconsistent results and lack of independent confirmation cast doubt on some claims.
    • Few studies meet the proposed stringent criteria for demonstrating true stem cell plasticity.

    Conclusions:

    • Clear, rigid criteria are essential for defining and validating stem cell plasticity.
    • Further research with robust methodologies is needed to confirm stem cell plasticity.
    • Revisiting the concept of stem cell plasticity requires stringent, reproducible evidence.