Cited by 313Wnt/β-catenin signaling in development and cancerMesenchymal stem cell researchCancer Cells and Metastasis

Dkk-1 secreted by mesenchymal stem cells inhibits growth of breast cancer cells via depression of Wnt signalling

Qiao, Ling, Xu, Zhi-li, Zhao, Tie-jun, Ye, Li-hong, Zhang, Xiao-dong·2008·Cancer Letters

Abstract

We determined the molecular mechanism of inhibitory effect of human mesenchymal stem cells (hMSCs) on the growth of human MCF-7 breast cancer cells. Our finding showed that beta-catenin was down-regulated in MCF-7 cells by conditioned media from Z3 hMSCs, and the expression level of dickkopf-1 (Dkk-1) was higher in Z3 cells than that in MCF-7 cells. Neutralization of Dkk-1 and small interference RNA targeting Dkk-1 mRNA in Z3 cells attenuated the inhibitory effect of Z3 cells on MCF-7 cells. Overexpression of Dkk-1 in Z3 cells enhanced the inhibition. Therefore, Dkk-1 secreted by Z3 cells involves the inhibition via the Wnt pathway.

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Crossref · 10.1016/j.canlet.2008.04.032

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  • Disruption of PI3K/AKT via upregulation of PTEN and of WNT/β-catenin signaling by MSC-secreted DKK-1 contributes to inhibition of tumor cell migration, invasion, and survival.

    “the disruption of the cancer-associated signaling pathways, such as PI3K/AKT [107], [113], via upregulation of PTEN, and of WNT/β-catenin signaling pathway by MSCs-secreted antagonist of the Wnt signaling DKK-1 [114] contributes to the inhibition of tumor cell migration, invasion, and survival [114], [115], [116], [117], [118].”

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Authors
Qiao, L., Xu, Z.-L., Zhao, T.-J., Ye, L.-H., & Zhang, X.-D.
Affiliations
Nankai University (CN)
Venue
Cancer Letters
Publisher
Elsevier BV
Published
2008-09
Volume
269
Issue
1
Pages
67-77
ISSN
0304-3835 (ISSN-L)
OpenAlex
W2076704745
Cited by
313
References
43
Citations by year
2026: 5 · 2025: 7 · 2024: 9 · 2023: 19 · 2022: 22 · 2021: 29 · 2020: 19 · 2019: 17 · 2018: 16 · 2017: 19 · 2016: 20 · 2015: 26 · 2014: 27 · 2013: 25 · 2012: 20
FWCI
4.37
Type
journal article
Language
en
Open access
closed
Locations
  • Cancer Letters (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
Keywords
DKK1, mesenchymal stem cells, breast cancer, MCF-7 cells, Wnt signaling, β-catenin, conditioned medium, tumor growth inhibition, secreted factors, paracrine signaling
MeSH terms
Animals, Breast Neoplasms, Cells, Cultured, Humans, Signal Transduction, Mice, SCID, Culture Media, Conditioned, Intercellular Signaling Peptides and Proteins, Cell Proliferation, Wnt Proteins, beta Catenin, Mice, Mesenchymal Stem Cells

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