Cancer Stem Cells: Impact, Heterogeneity, and Uncertainty

Jeffrey A. Magee, Elena Piskounova, Sean J. Morrison

Research output: Contribution to journalReview article

747 Scopus citations

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.

Original languageEnglish
Pages (from-to)283-296
Number of pages14
JournalCancer Cell
Volume21
Issue number3
DOIs
StatePublished - Mar 20 2012
Externally publishedYes

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