Abstract
The purpose of this study was to explore the role of ANXA3 in lung cancer cell resistance to oxaliplatin (OXA). After adding different concentrations of Ox, A549, and A549/Ox cell viability were examined using cell counting kit-8 (CCK-8) assay, and the mRNA and protein expressions of ANXA3 were analyzed by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) and Western blot, respectively. After treating cells with 5 μg/mL and 15 μg/mL Ox for 24 hours and knocking down ANXA3, qRT-PCR, CCK8, flow cytometry, transwell, and BrdU assays were performed to examine ANXA3 expression level, cell viability, apoptosis, migration, and proliferative capacities, respectively. In addition, Western blot was performed to detect the protein expression of c-caspase 3. The higher the concentration of Ox added, the worse the cell viability. Meanwhile, ANXA3 expression in A549/Ox cells was found remarkably higher than that in normal A549 cells. After treated with different concentrations of Ox for 24 hours, the cell viability, migration capacity and cell proliferation of A549 cells were found remarkably decreased, while the opposite results were observed in cell apoptosis and C-caspase 3 protein expression, and the Ox treatment group was evidently lower than control group. Knockdown of ANXA3 may be able to inhibit the resistance of LCa cells to OXA.
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