Figure 8.
DNA Damage Repair mechanisms activation after hTERT knockdown (siRNA) in HNSCC cell lines. (A) Analysis of DDR-related genes expression at the transcriptional level in FaDu cells by qPCR; (B) Analysis of DDR-related genes expression at the transcriptional level in H103 cells by qPCR; (C) Analysis of DDR-related genes expression at the protein level by Western blot analysis. Semi-quantitative analysis of Western blot results using ImageJ software. CTRL – control cells transfected with non-specific siRNA; d3/d7 - cells transfected with hTERT gene-targeted siRNA on day 3rd and 7th respectively. Data are presented as the mean ± standard deviation. *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001 with comparisons indicated by lines.