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GNA13 promotes the proliferation and migration of lung squamous cell carcinoma cells through regulating the PI3K/AKT signaling pathway.
Tissue & Cell 2022 June
The purpose of this study aimed to figure out the role of GNA13 in lung squamous cell carcinoma (LUSC) and the underlying mechanism. Male BALB/c mice were used to construct LUSC mouse model. Cell growth was examined using MTT and colony formation assay. Cell migration and invasion was determined using wound healing and transwell assay. The expression and phosphorylation of protein was detected by Western blotting assay. Immunohistochemistry staining was used to observe the tumor growth and metastasis. GNA13 was overexpressed in both LUSC tissues and LUSC cell lines. Knockdown of GNA13 in LUSC cells reduced cell viability and inhibited the formation of colonies in the SK-MES-1 and NCI-H520 cells. Cell migration and invasion was also prevented by inhibition of GNA13 in the LUSC cells. Phosphorylation of PI3K and AKT was downregulated by silencing GNA13 and upregulated by overexpression of GNA13 in the LUSC cells. In LUSC mouse model, tumor size and tumor weight were significantly decreased in si-GNA13 mice compared to control group. The expression of GNA13, Ki67, MMP2 and phosphorylation of AKT were significantly inhibited in si-GNA13 mice compared to control group. This study has demonstrated that knockdown of GNA13 could inhibit cell survival, migration and metastasis in LUSC.
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