Identification of a genetic signature of activated signal transducer and activator of transcription 3 in human tumors.


Journal Article

Signal transducer and activator of transcription 3 (STAT3) is a transcription factor that is activated in diverse human tumors and may play a direct role in malignant transformation. However, the full complement of target genes that STAT3 regulates to promote oncogenesis is not known. We created a system to express a constitutively active form of STAT3, STAT3-C, in mouse fibroblasts and used it to identify STAT3 targets. We showed that a subset of these targets, which include transcription factors regulating cell growth, survival, and differentiation, are coexpressed in a range of human tumors. Using immunohistochemical staining of tissue microarrays, we showed that these targets are enriched in breast and prostate tumors harboring activated STAT3. Finally, we showed that STAT3 is required for the expression of these genes in a breast cancer cell line. Taken together, these results identify a cohort of STAT3 targets that may mediate its role in oncogenesis.

Full Text

Duke Authors

Cited Authors

  • Alvarez, JV; Febbo, PG; Ramaswamy, S; Loda, M; Richardson, A; Frank, DA

Published Date

  • June 15, 2005

Published In

Volume / Issue

  • 65 / 12

Start / End Page

  • 5054 - 5062

PubMed ID

  • 15958548

Pubmed Central ID

  • 15958548

International Standard Serial Number (ISSN)

  • 0008-5472

Digital Object Identifier (DOI)

  • 10.1158/0008-5472.CAN-04-4281


  • eng

Conference Location

  • United States