Gene expression profiling of the tumor microenvironment during breast cancer progression.

ABSTRACT:

Introduction

The importance of the tumor microenvironment in breast cancer has been increasingly recognized. Critical molecular changes in the tumor stroma accompanying cancer progression, however, remain largely unknown. We conducted a comparative analysis of global gene expression changes in the stromal and epithelial compartments during breast cancer progression from normal to preinvasive to invasive ductal carcinoma.

Methods

We combined laser capture microdissection and gene expression microarrays to analyze 14 patient-matched normal epithelium, normal stroma, tumor epithelium and tumor-associated stroma specimens. Differential gene expression and gene ontology analyses were performed.

Results

Tumor-associated stroma undergoes extensive gene expression changes dur

SUBMITTER: Ma XJ 

PROVIDER: S-EPMC2687710 | biostudies-literature | 2009

REPOSITORIES: biostudies-literature