Figure 7From: Long-term cultivation of colorectal carcinoma cells with anti-cancer drugs induces drug resistance and telomere elongation: an in vitrostudyEffect of long-term culture with anti-cancer drugs on the mRNA expression of the three major gene components of telomerase, hTERT, hTR and TEP-1. An RT-PCR analysis of the hTERT, hTR and TEP-1 genes was performed by using the cells at each PDL. The G3PDH gene was used as an internal control.Back to article page