Cited by 231Wnt/β-catenin signaling in development and cancerHedgehog Signaling Pathway StudiesDrug Transport and Resistance Mechanisms

Niclosamide Suppresses Cancer Cell Growth By Inducing Wnt Co-Receptor LRP6 Degradation and Inhibiting the Wnt/β-Catenin Pathway

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Lu, Wenyan, Lin, Cuihong, Roberts, Michael J., Waud, William R., Piazza, Gary A., Li, Yonghe·2011·PLoS ONE

Abstract

The Wnt/β-catenin signaling pathway is important for tumor initiation and progression. The low density lipoprotein receptor-related protein-6 (LRP6) is an essential Wnt co-receptor for Wnt/β-catenin signaling and represents a promising anticancer target. Recently, the antihelminthic drug, niclosamide was found to inhibit Wnt/β-catenin signaling, although the mechanism was not well defined. We found that niclosamide was able to suppress LRP6 expression and phosphorylation, block Wnt3A-induced β-catenin accumulation, and inhibit Wnt/β-catenin signaling in HEK293 cells. Furthermore, the inhibitory effects of niclosamide on LRP6 expression/phosphorylation and Wnt/β-catenin signaling were conformed in human prostate PC-3 and DU145 and breast MDA-MB-231 and T-47D cancer cells. Moreover, we showed that the mechanism by which niclosamide suppressed LRP6 resulted from increased degradation as evident by a shorter half-life. Finally, we demonstrated that niclosamide was able to induce cancer cell apoptosis, and displayed excellent anticancer activity with IC(50) values less than 1 µM for prostate PC-3 and DU145 and breast MDA-MB-231 and T-47D cancer cells. The IC(50) values are comparable to those shown to suppress the activities of Wnt/β-catenin signaling in prostate and breast cancer cells. Our data indicate that niclosamide is a unique small molecule Wnt/β-catenin signaling inhibitor targeting the Wnt co-receptor LRP6 on the cell surface, and that niclosamide has a potential to be developed a novel chemopreventive or therapeutic agent for human prostate and breast cancer.

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Authors
Lu, W., Lin, C., Roberts, M. J., Waud, W. R., Piazza, G. A., & Li, Y.
Affiliations
  • Southern Research Institute (US)
  • University of South Alabama (US)
Corresponding author
Li, Yonghe
Venue
PLoS ONE
Published
2011-12-16
Volume
6
Issue
12
Pages
e29290
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2007145040
Cited by
230
References
50
Citations by year
2026: 14 · 2025: 13 · 2024: 16 · 2023: 10 · 2022: 12 · 2021: 18 · 2020: 22 · 2019: 19 · 2018: 17 · 2017: 20 · 2016: 21 · 2015: 21 · 2014: 14 · 2013: 8 · 2012: 5
FWCI
3.51
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • University of Rochester
  • National Institutes of Health (RO1CA124531)
  • National Cancer Institute (R01CA124531)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Hedgehog Signaling Pathway Studies
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
Keywords
niclosamide, LRP6, Wnt/β-catenin signaling, Wnt co-receptor, protein degradation, prostate cancer, breast cancer, apoptosis, anticancer drug repurposing, antihelminthic drugs, chemoprevention
MeSH terms
Dishevelled Proteins, Breast Neoplasms, Drug Screening Assays, Antitumor, Female, Humans, Male, Neoplasm Proteins, Neoplasms, Niclosamide, Phosphoproteins, Phosphorylation, Prostatic Neoplasms, Apoptosis, Cell Line, Tumor, Adaptor Proteins, Signal Transducing, Cell Proliferation, Wnt Proteins, beta Catenin, HEK293 Cells, Proteolysis, Wnt Signaling Pathway, Low Density Lipoprotein Receptor-Related Protein-6, Wnt3A Protein

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