Chemical-genetic screen identifies riluzole as an enhancer of Wnt/β-catenin signaling in melanoma.
Chemical-genetic screen identifies riluzole as an enhancer of Wnt/β-catenin signaling in melanoma.
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DOI:
10.1016/j.chembiol.2010.08.012
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发表时间:
2010-11-24
影响因子:
--
通讯作者:
Moon RT
中科院分区:
文献类型:
--
作者:
Biechele TL;Camp ND;Fass DM;Kulikauskas RM;Robin NC;White BD;Taraska CM;Moore EC;Muster J;Karmacharya R;Haggarty SJ;Chien AJ;Moon RT
To identify new protein and pharmacological regulators of Wnt/β-catenin signaling we used a cell-based reporter assay to screen a collection of 1857 human-experienced compounds for their ability to enhance activation of the β-catenin reporter by a low concentration of WNT3A. This identified 44 unique compounds, including the FDA-approved drug riluzole, which is presently in clinical trials for treating melanoma. We found that treating melanoma cells with riluzole in vitro enhances the ability of WNT3A to regulate gene expression, to promote pigmentation, and to decrease cell proliferation. Furthermore riluzole, like WNT3A, decreases metastases in a mouse melanoma model. Interestingly, siRNAs targeting the metabotropic glutamate receptor, GRM1, a reported indirect target of riluzole, enhance β-catenin signaling. The unexpected regulation of β-catenin signaling by both riluzole and GRM1 has implications for the future uses of this drug.
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