FBXW2 inhibits the progression of gastric cancer via promoting β-catenin ubiquitylation
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View abstract on PubMed
Summary
This summary is machine-generated.F-box and WD-repeat-containing protein 2 (FBXW2) suppresses gastric cancer by promoting β-catenin ubiquitination. Downregulation of FBXW2 increases cancer cell viability and invasion, indicating its therapeutic potential.
Area Of Science
- Oncology
- Molecular Biology
- Biochemistry
Background
- F-box and WD-repeat-containing protein 2 (FBXW2) is an E3 ubiquitin ligase implicated in tumorigenesis.
- The specific role of FBXW2 in gastric cancer pathogenesis is currently unknown.
Purpose Of The Study
- To investigate the expression and function of FBXW2 in gastric cancer.
- To elucidate the relationship between FBXW2 and β-catenin in gastric cancer progression.
Main Methods
- Quantitative RT-PCR and immunohistochemistry were used to analyze FBXW2 and β-catenin expression in gastric cancer tissues.
- Gastric cancer cell lines were manipulated to assess the impact of FBXW2 knockdown on cell viability, invasion, and protein expression.
- Ubiquitination and immunoprecipitation assays were performed to determine the interaction and ubiquitination of β-catenin by FBXW2.
Main Results
- FBXW2 expression was significantly downregulated in gastric cancer tissues, inversely correlated with β-catenin upregulation (r = -0.52, P < 0.001).
- FBXW2 knockdown enhanced gastric cancer cell viability and invasion, increased β-catenin levels, and decreased GSK3β and Axin2 expression.
- FBXW2 directly binds to β-catenin, promoting its ubiquitination and subsequent nuclear translocation.
Conclusions
- FBXW2 acts as a tumor suppressor in gastric cancer by facilitating β-catenin ubiquitination.
- FBXW2's role in regulating β-catenin ubiquitination suggests its potential as a novel therapeutic target for gastric cancer treatment.
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