ArticleTranslational cancer research2024
SYT7 promotes breast cancer cells growth through the PI3K/AKT pathway.
Article in Translational cancer research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Sodium alginate-based dual-responsive nanoparticles co-loaded with baicalin and doxorubicin induce ferroptosis in hepatocellular carcinoma associated with the PI3K/AKT/FoxO3α axis regulation.Frontiers in cell and developmental biology · 2026Article
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Abstract
Background: Breast cancer is one of the most malignant tumors in the reproductive system and has a poor prognosis. The aim of this study was to investigate the function and underlying mechanism of synaptotagmin 7 (SYT7) in breast cancer. Methods: We utilized The Cancer Genome Atlas (TCGA) database and the Kaplan-Meier plotter database to assess the correlation between SYT7 expression and the prognosis of breast cancer patients. The efficacy of SYT7 knockdown was evaluated through reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and Western blotting. Furthermore, we examined the impact of SYT7 on breast cancer cell proliferation and apoptosis using Cell Counting Kit-8 (CCK-8), clone formation assays, and flow cytometry. Through Western blot analysis, we investigated the influence of SYT7 on the expression of apoptosis-related markers and the PI3K/AKT signaling pathway in breast cancer. Results: The TCGA database data analysis revealed a significant up-regulation of SYT7 expression in breast cancer tissues compared to normal tissues (P<0.001). A correlation was observed between SYT7 expression and tumor size (P=0.009), as well as estrogen receptor (ER) expression level (P<0.001) and progesterone receptor (PR) expression level (P<0.001) in breast cancer patients. Analysis of the Kaplan-Meier plotter database indicated that high SYT7 expression was associated with a shorter overall survival (OS) (P=0.009). The mRNA expression results indicated higher SYT7 expression in breast cancer tissues compared to adjacent normal tissues (P=0.005). CCK-8, clone formation assay, and flow cytometry results demonstrated that SYT7 promoted the proliferation and inhibited the apoptosis of breast cancer cells. Western blot assay confirmed the activation of PI3K/AKT signaling by SYT7. Conclusions: The findings suggest that SYT7 is highly expressed in breast cancer and that its high expression is linked to clinical characteristics and prognosis. Inhibition of SYT7 through knockdown can suppress proliferation and promote apoptosis of breast cancer cells, making it a potential target for breast cancer diagnosis and treatment.
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