Evidence for type II cells as cells of origin of K-Ras-induced distal lung adenocarcinoma.

Journal Article (Journal Article)

Identifying the cells of origin of lung cancer may lead to new therapeutic strategies. Previous work has focused upon the putative bronchoalveolar stem cell at the bronchioalveolar duct junction as a cancer cell of origin when a codon 12 K-Ras mutant is induced via adenoviral Cre inhalation. In the present study, we use two "knock-in" Cre-estrogen receptor alleles to inducibly express K-RasG12D in CC10(+) epithelial cells and Sftpc(+) type II alveolar cells of the adult mouse lung. Analysis of these mice identifies type II cells, Clara cells in the terminal bronchioles, and putative bronchoalveolar stem cells as cells of origin for K-Ras-induced lung hyperplasia. However, only type II cells appear to progress to adenocarcinoma.

Full Text

Duke Authors

Cited Authors

  • Xu, X; Rock, JR; Lu, Y; Futtner, C; Schwab, B; Guinney, J; Hogan, BLM; Onaitis, MW

Published Date

  • March 27, 2012

Published In

Volume / Issue

  • 109 / 13

Start / End Page

  • 4910 - 4915

PubMed ID

  • 22411819

Pubmed Central ID

  • PMC3323959

Electronic International Standard Serial Number (EISSN)

  • 1091-6490

Digital Object Identifier (DOI)

  • 10.1073/pnas.1112499109


  • eng

Conference Location

  • United States