Regulation of In Situ to Invasive Breast Carcinoma Transition

Min Hu, Jun Yao, Danielle K. Carroll, Stanislawa Weremowicz, Haiyan Chen, Daniel Carrasco, Andrea Richardson, Shelia Violette, Tatiana Nikolskaya, Yuri Nikolsky, Erica L. Bauerlein, William C. Hahn, Rebecca S. Gelman, Craig Allred, Mina J. Bissell, Stuart Schnitt, Kornelia Polyak

Research output: Contribution to journalArticlepeer-review


The transition of ductal carcinoma in situ (DCIS) to invasive carcinoma is a poorly understood key event in breast tumor progression. Here, we analyzed the role of myoepithelial cells and fibroblasts in the progression of in situ carcinomas using a model of human DCIS and primary breast tumors. Progression to invasion was promoted by fibroblasts and inhibited by normal myoepithelial cells. Molecular profiles of isolated luminal epithelial and myoepithelial cells identified an intricate interaction network involving TGFβ, Hedgehog, cell adhesion, and p63 required for myoepithelial cell differentiation, the elimination of which resulted in loss of myoepithelial cells and progression to invasion.

Original languageEnglish (US)
Pages (from-to)394-406
Number of pages13
JournalCancer cell
Issue number5
StatePublished - May 6 2008
Externally publishedYes



ASJC Scopus subject areas

  • Oncology
  • Cell Biology
  • Cancer Research


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