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2016 ; 12
(7
): 768-75
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Inhibition of wnt/?-catenin Signaling in Hepatocellular Carcinoma by an
Antipsychotic Drug Pimozide
#MMPMID27313491
Fako V
; Yu Z
; Henrich CJ
; Ransom T
; Budhu AS
; Wang XW
Int J Biol Sci
2016[]; 12
(7
): 768-75
PMID27313491
show ga
Hepatocellular carcinoma (HCC) is one of the most common forms of malignant
cancers in the world, yet very few effective systemic treatments for HCC patients
exist. Thus, the development of new treatment modalities presents a great need.
The wnt/?-catenin signaling pathway is highly activated in stem cell-like
aggressive HCC, which is associated with chemoresistance and poor survival in HCC
patients. In a previous study, we found that an FDA-approved psychiatric drug,
pimozide (PMZ), has anti-cancer properties in HCC cell lines that express
epithelial cell adhesion molecule (EpCAM), a hepatic stem cell marker that is a
functional down-stream target of the wnt/?-catenin pathway. In this study, we
demonstrate that PMZ effectively inhibits cell growth of HCC cells by disrupting
the wnt/?-catenin signaling pathway and reducing EpCAM expression. Thus, PMZ may
be a useful molecular entity that could be repurposed as an anti-cancer therapy
for treatment of HCC.