E. qRT-PCR analysis of ER-phagy receptors in RCS chondrocytes. Gene expression was analyzed after FGF18 (50 ng/mL) treatment for 16 hours. Fold change values were relative to vehicle (5% ABS) and normalized to Cyclophilin gene. Mean +/- standard error of the mean (sem) of N=3 biological replicates/treatment. Student's paired T-test **p<0.005; *p<0.05. 