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Evaluation of rRNA expression and the effect of low-dose Actinomycin D (50 ng/mL, 2 h) treatment in lung adenocarcinoma cell lines. (A) 47/45S precursor ribosomal RNA (pre-rRNA) and (B) 28S mature rRNA. Relative transcription level of untreated H1650 cells was assumed as 1. n.s., not significant; * p < 0.05; ** p < 0.01.
