Phenotypic heterogeneity among tumorigenic melanoma cells from patients that is reversible and not hierarchically organized

Elsa Quintana, Mark Shackleton, Hannah R. Foster, Douglas R. Fullen, Michael S. Sabel, Timothy M. Johnson, Sean J. Morrison

Research output: Contribution to journalArticle

417 Scopus citations

Abstract

We investigated whether melanoma is hierarchically organized into phenotypically distinct subpopulations of tumorigenic and nontumorigenic cells or whether most melanoma cells retain tumorigenic capacity, irrespective of their phenotype. We found 28% of single melanoma cells obtained directly from patients formed tumors in NOD/SCID IL2Rγnull mice. All stage II, III, and IV melanomas obtained directly from patients had common tumorigenic cells. All tumorigenic cells appeared to have unlimited tumorigenic capacity on serial transplantation. We were unable to find any large subpopulation of melanoma cells that lacked tumorigenic potential. None of 22 heterogeneously expressed markers, including CD271 and ABCB5, enriched tumorigenic cells. Some melanomas metastasized in mice, irrespective of whether they arose from CD271- or CD271+ cells. Many markers appeared to be reversibly expressed by tumorigenic melanoma cells.

Original languageEnglish (US)
Pages (from-to)510-523
Number of pages14
JournalCancer Cell
Volume18
Issue number5
DOIs
StatePublished - Nov 16 2010

ASJC Scopus subject areas

  • Oncology
  • Cell Biology
  • Cancer Research

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