The metabolic regulator ERRα, a downstream target of HER2/IGF-1R, as a therapeutic target in breast cancer.

Journal Article (Journal Article)

A genomic signature designed to assess the activity of the estrogen-related receptor alpha (ERRα) was used to profile more than 800 breast tumors, revealing a shorter disease-free survival in patients with tumors exhibiting elevated receptor activity. Importantly, this signature also predicted the ability of an ERRα antagonist, XCT790, to inhibit proliferation in cellular models of breast cancer. Using a chemical genomic approach, it was determined that activation of the Her2/IGF-1R signaling pathways and subsequent C-MYC stabilization upregulate the expression of peroxisome proliferator-activated receptor gamma coactivator-1 beta (PGC-1β), an obligate cofactor for ERRα activity. PGC-1β knockdown in breast cancer cells impaired ERRα signaling and reduced cell proliferation, implicating a functional role for PGC-1β/ERRα in the pathogenesis of breast cancers.

Full Text

Duke Authors

Cited Authors

  • Chang, C-Y; Kazmin, D; Jasper, JS; Kunder, R; Zuercher, WJ; McDonnell, DP

Published Date

  • October 18, 2011

Published In

Volume / Issue

  • 20 / 4

Start / End Page

  • 500 - 510

PubMed ID

  • 22014575

Pubmed Central ID

  • PMC3199323

Electronic International Standard Serial Number (EISSN)

  • 1878-3686

Digital Object Identifier (DOI)

  • 10.1016/j.ccr.2011.08.023


  • eng

Conference Location

  • United States