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Influence of LncRNA SDHAP1 on multiplication, migration and invasiveness of non-small cell lung carcinoma cells. | LitMetric
Objective : To investigate the effects of lncRNA SDHAP1 on the multiplication, migration and invasiveness of NSCLC cells.Methods : From The Cancer Genome Atlas (TCGA) database, the clinical data of NSCLC patients were retrieved to analyze the expression of lncRNA SDHAP1 in LC. In this study, lncRNA SDHAP1 in NSCLC cell lines was regulated, and its expression profiling in non- and cis-platinum (CDDP) resistant NSCLC cell lines was identified by qPCR. The levels of multidrug resistance-related protein 1 (MRP1), p-glycoprotein (P-gp) and glutathione S-transferase-π (GST-π) were measured by Western blotting (WB), the migration and invasion of LC cells were detected by Transwell assay, and the cell multiplication and activity were determined by MTT assays.Results : TCGA database identified upregulated lncRNA SDHAP1 expression in LC. qPCR results revealed that lncRNA SDHAP1 was highly expressed in NSCLC. LncRNA SDHAP1 showed higher expression in patients with stage IV than in those with stage I, II or III, as well as in people aged 21-40 years old. Compared with normal lung epithelial cells, lncRNA SDHAP1 was upregulated in NSCLC cell lines, especially in those resistant to CDDP. LncRNA SDHAP1 downregulation led to a decrease in multiplication, migration and invasiveness of NSCLC cells, and a reduction in activity, migration and invasiveness of CDDP-resistant NSCLC cell lines. In addition, lncRNA SDHAP1 knockdown down-regulated the expression levels of Multidrug resistance-associated proteins MRP1, P-gp and GST-π.Conclusions : LncRNA SDHAP1 is upregulated in NSCLC and is associated with LC staging and age of patients. Silencing lncRNA SDHAP1 can suppress the multiplication, migration, invasiveness and CDDP resistance of cancer cells. Therefore, lncRNA SDHAP1 may serve as a prognostic biomarker and treatment target for NSCLC.
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