Table 1. Primer sequences used for RT-qPCR.

Genes	Primer sequences (5’-3’)
circ_0000345	Forward (F): 5’-ATGTGGCCTTCCAAACCATCC-3’
	Reverse (R): 5’-AGAACATTGGCTGTAGAACGG-3’
PAPD5	F: 5’-CTCCATGCGGCCTCGTC-3’
	R: 5’-TCGTCTCTAGGGGCAGGAAG-3’
miR-647	F: 5’-GCCGAGGTGGCTGCACTCACT-3’
	R: 5’-AGCAGGGAGATAACGGACTGAC-3’
GAPDH	F: 5’-GACAGTCAGCCGCATCTTCT-3’
	R: 5’-GCGCCCAATACGACCAAATC-3’
U6	F: 5’-CTCGCTTCGGCAGCACA-3’
	R: 5’-AACGCTTCACGAATTTGCGT-3’
RSF1	F: 5’-TACTCCACAGTTGATGAAGGCA-3’
	R: 5’-CATCTCCCATGCCCAGGTACT-3’