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beta-Sitosterol blo...
beta-Sitosterol blocks the LEF-1-mediated Wnt/beta-catenin pathway to inhibit proliferation of human colon cancer cells
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Gu, S. L. (author)
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- Liu, Fahui (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för medicinsk kemi och cellbiologi,Institute of Biomedicine, Department of Medical Biochemistry and Cell Biology
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Xie, X. H. (author)
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Ding, M. (author)
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Wang, Z. (author)
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Xing, X. Y. (author)
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Xiao, T. B. (author)
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Sun, X. B. (author)
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(creator_code:org_t)
- Elsevier BV, 2023
- 2023
- English.
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In: Cellular Signalling. - : Elsevier BV. - 0898-6568. ; 104
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https://doi.org/10.1...
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Abstract
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- Objectives: This study aimed to investigate the LEF-1-mediated Wnt/beta-catenin pathway for its biological functions and prognostic value in colon cancer (CC). Furthermore, the potential molecular mechanism of beta-sitosterol in CC was investigated in vitro.Methods: Clinical information and gene expression profiles from CC patients were obtained based on Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) databases. In addition, we applied R software "Limma" package for the differential analysis of LEF-1 between cancer and para-carcinoma tissue samples. Kaplan-Meier (KM) survival analysis was adopted for analyzing whether LEF-1 was of prognostic significance. Moreover, gene set enrichment analysis (GSEA) was adopted for pathway enrichment analysis and visualization. In addition, CCK8, plate cloning, scratch and high-content screening (HCS) imaging assays were performed to examine the therapeutic efficacy of beta-sitosterol in human CC HCT116 cells. siRNA technology was employed to knock down LEF1 expression in HCT116 cells. qRT-PCR and Western-blot (WB) analysis were carried out to analyze the HCT-116 mRNA and protein expression levels, respectively.Results: LEF-1 was up-regulated within CC and acted as an oncogenic gene. LEF-1 up-regulation predicted the dismal prognostic outcome and activated the Wnt/beta-catenin pathway. beta-sitosterol effectively suppressed HCT116 cells proliferation and invasion. For the mechanism underlying beta-sitosterol, beta-sitosterol was found to significantly down-regulate LEF-1 gene and protein expression and disrupt Wnt/beta-catenin pathway transmission in HCT116 cells. After suppressing LEF-1 expression, its downstream targets including C-myc, Survivin and CCND1 were also down-regulated.Conclusion: According to our results, LEF-1 down-regulation can effectively block Wnt/beta-catenin pathway, inhibit CC cell growth and migration. Collectively, beta-sitosterol can be used to treat CC, which can provide anti-tumor activity by targeting LEF-1.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Cell- och molekylärbiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Cell and Molecular Biology (hsv//eng)
Keyword
- Colon cancer
- ?-Sitosterol
- LEF-1
- Wnt
- ?-catenin pathway
- Proliferation
- Bioinformatic analysis
- epithelial-mesenchymal transition
- target
- statistics
- expression
- mutations
- Cell Biology
Publication and Content Type
- ref (subject category)
- art (subject category)
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