(Life Technologies, Carlsbad, CA) and RNA isolation was performed according to
the manufacturer’s protocol. Total RNA (1μg) was converted to cDNA
using the iScript cDNA synthesis kit (BioRad, Hercules, CA). cDNA was amplified
using a ViiA7 iCycler real-time SYBR PCR detection system (Life Technologies,
Carlsbad, CA). The PAX8 primers were designed to span exon-exon junctions to
prevent binding to genomic DNA. Samples were normalized to the housekeeping
gene, RNA18S. Three biological replicates were performed.