Table 1.

Sequences used for qRT-PCR

Name	Primer sequences
circ_0003266	Forward: 5′-AGTTGACAGCGGTACCATCC-3′
	Reverse: 5′-TGTAGGTTCGGCAAGTCCTC-3′
miR-503-5p	Forward:5′-CCTATTTCCCATGATTCCTTCATA-3’
	Reverse:5′-GTAATACGGTTATCCACGCG-3′
U6	Forward:5′-ATTGGAACGATACAGAGAAGATT-3’
	Reverse:5′-GGAACGCTTCACGAATTTG-3’
PDCD4	Forward: 5′-ACAGGTGTATGATGTGGAGGA-3′
	Reverse: 5′-TTCTCAAATGCCCTTTCATCCAA-3′
GAPDH	Forward:5′-AACGGATTTGGTCGTATTGGG-3’
	Reverse:5′-CCTGGAAGATGGTGATGG GAT-3’