Figure 4. Expression levels of inhibitory SMAD6 and SMAD7 distinguish YSTs and GERs.
Quantitative mRNA expression of SMAD6 and SMAD7. We performed quantitative RT-PCR to evaluate mRNA expression of SMAD6 and SMAD7: transcriptional targets of TGF-β/BMP transduction and inhibitors of TGF-β/BMP signaling. EC1: NCCIT, EC2:NTERA-2 cl.D1[NT2/D1]. Error bars indicate 95% confidence intervals.
