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. 2014 Jun 16;25(6):794-808.
doi: 10.1016/j.ccr.2014.03.036. Epub 2014 May 15.

Myelodysplastic syndromes are propagated by rare and distinct human cancer stem cells in vivo

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Myelodysplastic syndromes are propagated by rare and distinct human cancer stem cells in vivo

Petter S Woll et al. Cancer Cell. .
Free article

Erratum in

  • Cancer Cell. 2014 Jun 16;25(6):861
  • Cancer Cell. 2015 Apr 13;27(4):603-5

Abstract

Evidence for distinct human cancer stem cells (CSCs) remains contentious and the degree to which different cancer cells contribute to propagating malignancies in patients remains unexplored. In low- to intermediate-risk myelodysplastic syndromes (MDS), we establish the existence of rare multipotent MDS stem cells (MDS-SCs), and their hierarchical relationship to lineage-restricted MDS progenitors. All identified somatically acquired genetic lesions were backtracked to distinct MDS-SCs, establishing their distinct MDS-propagating function in vivo. In isolated del(5q)-MDS, acquisition of del(5q) preceded diverse recurrent driver mutations. Sequential analysis in del(5q)-MDS revealed genetic evolution in MDS-SCs and MDS-progenitors prior to leukemic transformation. These findings provide definitive evidence for rare human MDS-SCs in vivo, with extensive implications for the targeting of the cells required and sufficient for MDS-propagation.

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