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Cancer Cell. 2012 Mar 20;21(3):283-96. doi: 10.1016/j.ccr.2012.03.003.

Cancer stem cells: impact, heterogeneity, and uncertainty.

Author information

  • 1Howard Hughes Medical Institute, Children's Research Institute, and Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.

Abstract

The differentiation of tumorigenic cancer stem cells into nontumorigenic cancer cells confers heterogeneity to some cancers beyond that explained by clonal evolution or environmental differences. In such cancers, functional differences between tumorigenic and nontumorigenic cells influence response to therapy and prognosis. However, it remains uncertain whether the model applies to many, or few, cancers due to questions about the robustness of cancer stem cell markers and the extent to which existing assays underestimate the frequency of tumorigenic cells. In cancers with rapid genetic change, reversible changes in cell states, or biological variability among patients, the stem cell model may not be readily testable.

PMID:
22439924
PMCID:
PMC4504432
DOI:
10.1016/j.ccr.2012.03.003
[PubMed - indexed for MEDLINE]
Free PMC Article
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