ArticleInternational journal of molecular sciences2023
PLA2G7/PAF-AH as Potential Negative Regulator of the Wnt Signaling Pathway Mediates Protective Effects in BRCA1 Mutant Breast Cancer.
Article in International journal of molecular sciences, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 12 citations in OpenAlex.
- Lp‑PLA2 in the cancer landscape: From molecular mechanisms to therapeutic potential (Review).International journal of oncology · 2025Review
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- Alteration of mMolecules (Basel, Switzerland) · 2025Article
- Role of the Wnt signaling pathway in the complex microenvironment of breast cancer and prospects for therapeutic potential (Review).International journal of oncology · 2025Review
- Wnt signaling pathways in biology and disease: mechanisms and therapeutic advances.Signal transduction and targeted therapy · 2025Review
- PLA2G7 promotes immune evasion of bladder cancer through the JAK-STAT-PDL1 axis.Cell death & disease · 2025Article
- Platelet-Activating Factor-Induced Inflammation in Obesity: A Two-Sided Coin of Protection and Risk.Cells · 2025Review
- Knockdown of SIGLEC1 inhibits osteogenic differentiation to alleviate ankylosing spondylitis progression by suppressing the TGF-β1/SMAD signaling pathway.Naunyn-Schmiedeberg's archives of pharmacology · 2025Article
- An end-to-end deep learning method for mass spectrometry data analysis to reveal disease-specific metabolic profiles.Nature communications · 2024Article
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- Investigating the potential mechanism of quercetin against cervical cancer.Discover oncology · 2023Article
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Authors and funding
13 authors at 3 institutions in 2 countries.
Funding
Abstract
Past studies have confirmed that aberrant activation of the Wnt/β-catenin signaling is associated with tumorigenesis and metastasis in breast cancer, while the role of platelet-activating factor acetylhydrolase (PLA2G7/PAF-AH) in this signaling pathway remains unclear. In this study, we analyze the functional impact of PAF-AH on BRCA1 mutant breast cancer and explore its relationship to the Wnt signaling pathway. By performing immunohistochemistry, PAF-AH expression and β-catenin expression were examined in both BRCA1 WT and BRCA1 mutant breast cancer specimens. The BRCA1 mutant breast cancer cell line HCC1937 was used for in vitro experiments to assess the impact of PAF-AH on cellular functions. The intracellular distribution of β-catenin depending on PLA2G7/PAF-AH expression was investigated by immunocytochemistry. Significantly higher nuclear expression levels of PAF-AH were found in BRCA1 mutant tissue specimens than in BRCA1 WT samples. Cell viability, proliferation, and the motility rate of HCC1937 were significantly enhanced after PLA2G7 silencing, which indicated a protective role of PAF-AH in breast cancer. Nuclear PAF-AH expressed correlatedly with membranous β-catenin. PLA2G7 silencing provoked the β-catenin translocation from the membrane to the nucleus and activated Wnt signaling downstream genes. Our data showed a protective effect of high PAF-AH expression in BRCA1 mutant breast cancer. PAF-AH may achieve its protective effect by negatively regulating the Wnt pathway. In conclusion, our research sheds new light on the regulatory pathways in BRCA1 mutant breast cancer.
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