Fig. 9

The mRNA expression of BNIPL, KRT4, IGFBP3, MMP10, MMP3, and TGFBI in cells. The mRNA expression levels of BNIPL, KRT4, IGFBP3, MMP10, MMP3, and TGFBI in TU212 and TU686 cells were detected by quantitative real time polymerase chain reaction. ^*P < 0.05, ^**P < 0.01, ^***P < 0.001 vs. normal laryngeal epithelial cells (n = 3)