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Monensin inhibits canonical Wnt signaling in human colorectal cancer cells and suppresses tumor growth in multiple intestinal neoplasia mice
L. Tumova, AR. Pombinho, M. Vojtechova, J. Stancikova, D. Gradl, M. Krausova, E. Sloncova, M. Horazna, V. Kriz, O. Machonova, J. Jindrich, Z. Zdrahal, P. Bartunek, V. Korinek,
Jazyk angličtina Země Spojené státy americké
Typ dokumentu časopisecké články, práce podpořená grantem
Open Access Digital Library od 2001-11-01
Open Access Digital Library od 2001-11-01
Odkazy
PubMed
24552772
DOI
10.1158/1535-7163.mct-13-0625
Knihovny.cz E-zdroje
- MeSH
- antibiotika antitumorózní farmakologie terapeutické užití MeSH
- beta-katenin metabolismus MeSH
- dánio pruhované MeSH
- experimentální nádory MeSH
- HEK293 buňky MeSH
- kolorektální nádory farmakoterapie patologie MeSH
- LDL receptor related protein 6 metabolismus MeSH
- lidé MeSH
- monensin farmakologie terapeutické užití MeSH
- myši MeSH
- nádorové buněčné linie MeSH
- proliferace buněk účinky léků MeSH
- regulace genové exprese u nádorů účinky léků MeSH
- signální dráha Wnt účinky léků MeSH
- xenogenní modely - testy antitumorózní aktivity MeSH
- Xenopus MeSH
- zvířata MeSH
- Check Tag
- lidé MeSH
- myši MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
The Wnt signaling pathway is required during embryonic development and for the maintenance of homeostasis in adult tissues. However, aberrant activation of the pathway is implicated in a number of human disorders, including cancer of the gastrointestinal tract, breast, liver, melanoma, and hematologic malignancies. In this study, we identified monensin, a polyether ionophore antibiotic, as a potent inhibitor of Wnt signaling. The inhibitory effect of monensin on the Wnt/β-catenin signaling cascade was observed in mammalian cells stimulated with Wnt ligands, glycogen synthase kinase-3 inhibitors, and in cells transfected with β-catenin expression constructs. Furthermore, monensin suppressed the Wnt-dependent tail fin regeneration in zebrafish and Wnt- or β-catenin-induced formation of secondary body axis in Xenopus embryos. In Wnt3a-activated HEK293 cells, monensin blocked the phoshorylation of Wnt coreceptor low-density lipoprotein receptor related protein 6 and promoted its degradation. In human colorectal carcinoma cells displaying deregulated Wnt signaling, monensin reduced the intracellular levels of β-catenin. The reduction attenuated the expression of Wnt signaling target genes such as cyclin D1 and SP5 and decreased the cell proliferation rate. In multiple intestinal neoplasia (Min) mice, daily administration of monensin suppressed progression of the intestinal tumors without any sign of toxicity on normal mucosa. Our data suggest monensin as a prospective anticancer drug for therapy of neoplasia with deregulated Wnt signaling.
Central European Institute of Technology Masaryk University Brno Czech Republic
Department of Organic Chemistry Faculty of Science Charles University Prague Prague
Zoologisches Institut 2 Universität Karlsruhe Karlsruhe Germany
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- $a Tumova, Lucie $u Authors' Affiliations: Department of Cell and Developmental Biology, CZ-OPENSCREEN, Institute of Molecular Genetics AS CR; Department of Organic Chemistry, Faculty of Science, Charles University in Prague, Prague; and Central European Institute of Technology, Masaryk University, Brno, Czech Republic; and Zoologisches Institut II, Universität Karlsruhe, Karlsruhe, Germany.
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- $a The Wnt signaling pathway is required during embryonic development and for the maintenance of homeostasis in adult tissues. However, aberrant activation of the pathway is implicated in a number of human disorders, including cancer of the gastrointestinal tract, breast, liver, melanoma, and hematologic malignancies. In this study, we identified monensin, a polyether ionophore antibiotic, as a potent inhibitor of Wnt signaling. The inhibitory effect of monensin on the Wnt/β-catenin signaling cascade was observed in mammalian cells stimulated with Wnt ligands, glycogen synthase kinase-3 inhibitors, and in cells transfected with β-catenin expression constructs. Furthermore, monensin suppressed the Wnt-dependent tail fin regeneration in zebrafish and Wnt- or β-catenin-induced formation of secondary body axis in Xenopus embryos. In Wnt3a-activated HEK293 cells, monensin blocked the phoshorylation of Wnt coreceptor low-density lipoprotein receptor related protein 6 and promoted its degradation. In human colorectal carcinoma cells displaying deregulated Wnt signaling, monensin reduced the intracellular levels of β-catenin. The reduction attenuated the expression of Wnt signaling target genes such as cyclin D1 and SP5 and decreased the cell proliferation rate. In multiple intestinal neoplasia (Min) mice, daily administration of monensin suppressed progression of the intestinal tumors without any sign of toxicity on normal mucosa. Our data suggest monensin as a prospective anticancer drug for therapy of neoplasia with deregulated Wnt signaling.
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