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Proc Natl Acad Sci U S A. 2000 Apr 11;97(8):4262-6.

Beta-catenin, a novel prognostic marker for breast cancer: its roles in cyclin D1 expression and cancer progression.

Author information

  • 1Department of Molecular and Cellular Oncology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA.

Abstract

Beta-catenin can function as an oncogene when it is translocated to the nucleus, binds to T cell factor or lymphoid enhancer factor family members, and transactivates its target genes. In this study, we demonstrate that cyclin D1 is one of the targets of beta-catenin in breast cancer cells. Transactivation of beta-catenin correlated significantly with cyclin D1 expression both in eight breast cell lines in vitro and in 123 patient samples. More importantly, we found that high beta-catenin activity significantly correlated with poor prognosis of the patients and was a strong and independent prognostic factor in breast cancer. Our studies, therefore, indicated that beta-catenin can be involved in breast cancer formation and/or progression and may serve as a target for breast cancer therapy.

PMID:
10759547
[PubMed - indexed for MEDLINE]
PMCID:
PMC18221
Free PMC Article

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