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The wnt/β‐catenin signaling pathway: A potential therapeutic target in the treatment of triple negative breast cancer
Author(s) -
King Taj D.,
Suto Mark J.,
Li Yonghe
Publication year - 2012
Publication title -
journal of cellular biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.028
H-Index - 165
eISSN - 1097-4644
pISSN - 0730-2312
DOI - 10.1002/jcb.23350
Subject(s) - wnt signaling pathway , lrp6 , frizzled , triple negative breast cancer , cancer research , lrp5 , breast cancer , gene knockdown , catenin , cancer stem cell , signal transduction , cancer , medicine , biology , microbiology and biotechnology , apoptosis , biochemistry
Breast cancer continues to be a serious health problem particularly in developed countries. Of particular concern is triple negative breast cancer (TNBC) which does not respond well to standard hormone therapy and is associated with poor overall patient prognosis. Recent studies indicate that Wnt/β‐catenin signaling is particularly activated in TNBC, such that the Wnt receptor frizzled‐7 (FZD7) and the Wnt co‐receptor LRP6 were found to be up regulated in TNBC. In addition, it has been demonstrated that transcriptional knockdown of LRP6 or FZD7 in TNBC cells suppressed tumor growth in vivo. Furthermore, salinomycin, a selective breast cancer stem cell killer, was recently demonstrated to be an inhibitor of Wnt/β‐catenin signaling by inducing LRP6 degradation. Therefore, the Wnt/β‐catenin signaling pathway and particularly the Wnt receptors on the cell surface may serve as novel therapeutic targets for the treatment of TNBC. J. Cell. Biochem. 113: 13–18, 2012. © 2011 Wiley Periodicals, Inc.