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Inhibition of lncRNA PCAT-1 increases the expression of p21 in tongue squamous cell carcinoma cell lines. Representative images and quantitative analysis of p21 western blotting in (A) CAL27 and (B) Tca-8113 cells. *P<0.05 vs. NC group. Each assay was performed in triplicate. lncRNA PCAT-1, long non-coding RNA prostate cancer-associated transcript-1; NC, negative control; shRNA, small hairpin RNA.
