Primary tumor genotype is an important determinant in identification of lung cancer propagating cells.

Published

Journal Article

Successful cancer therapy requires the elimination or incapacitation of all tumor cells capable of regenerating a tumor. Therapeutic advances therefore necessitate the characterization of the cells that are able to propagate a tumor in vivo. We show an important link between tumor genotype and isolation of tumor-propagating cells (TPCs). Three mouse models of the most common form of human lung cancer each had TPCs with a unique cell-surface phenotype. The cell-surface marker Sca1 did not enrich for TPCs in tumors initiated with oncogenic Kras, and only Sca1-negative cells propagated EGFR mutant tumors. In contrast, Sca1-positive cells were enriched for tumor-propagating activity in Kras tumors with p53 deficiency. Primary tumors that differ in genotype at just one locus can therefore have tumor-propagating cell populations with distinct markers. Our studies show that the genotype of tumor samples must be considered in studies to identify, characterize, and target tumor-propagating cells.

Full Text

Duke Authors

Cited Authors

  • Curtis, SJ; Sinkevicius, KW; Li, D; Lau, AN; Roach, RR; Zamponi, R; Woolfenden, AE; Kirsch, DG; Wong, K-K; Kim, CF

Published Date

  • July 2010

Published In

Volume / Issue

  • 7 / 1

Start / End Page

  • 127 - 133

PubMed ID

  • 20621056

Pubmed Central ID

  • 20621056

Electronic International Standard Serial Number (EISSN)

  • 1875-9777

International Standard Serial Number (ISSN)

  • 1934-5909

Digital Object Identifier (DOI)

  • 10.1016/j.stem.2010.05.021

Language

  • eng