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2015 ; 7
(3
): 1885-99
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
The Hedgehog Inhibitor Cyclopamine Reduces ?-Catenin-Tcf Transcriptional
Activity, Induces E-Cadherin Expression, and Reduces Invasion in Colorectal
Cancer Cells
#MMPMID26393651
Qualtrough D
; Rees P
; Speight B
; Williams AC
; Paraskeva C
Cancers (Basel)
2015[Sep]; 7
(3
): 1885-99
PMID26393651
show ga
Colorectal cancer is a major global health problem resulting in over 600,000
deaths world-wide every year with the majority of these due to metastatic
disease. Wnt signalling, and more specifically ?-catenin-related transcription,
has been shown to drive both tumorigenesis and the metastatic process in
colorectal neoplasia, yet its complex interactions with other key signalling
pathways, such as hedgehog, remain to be elucidated. We have previously shown
that the Hedgehog (HH) signalling pathway is active in cells from colorectal
tumours, and that inhibition of the pathway with cyclopamine induces apoptosis.
We now show that cyclopamine treatment reduces ?-catenin related transcription in
colorectal cancer cell lines, and that this effect can be reversed by addition of
Sonic Hedgehog protein. We also show that cyclopamine concomitantly induces
expression of the tumour suppressor and prognostic indicator E-cadherin.
Consistent with a role for HH in regulating the invasive potential we show that
cyclopamine reduces the expression of transcription factors (Slug, Snail and
Twist) associated with the epithelial-mesenchymal transition and reduces the
invasiveness of colorectal cancer cells in vitro. Taken together, Cancers 2015, 7
1886 these data show that pharmacological inhibition of the hedgehog pathway has
therapeutic potential in the treatment of colorectal cancer.