Table 1. Sequences of primers used for qRT-PCR.

	Primers	Sequence
CircEIF6	Sense	5'- GTCAGTGGTGGAGAGTGTCT -3'
	Antisense	5'- AGTAACAAGCTCCGCACGC -3'
TGF-α	Sense	5'- GAGTGACTCACCCGTGGC -3'
	Antisense	5'- CTCACAGTGCTTGCGGAC -3'
β-actin	Sense	5'- GACCTCTATGCCAACACAGTGC -3'
	Antisense	5'- GTACTCCTGCTTGCTGATCCAC -3'
miR-144	Stem-loop Sense	5'- CTCAACTGGTGTCGTGGACTCG GCAATTCAGTTGAGAGTACATC- 3' 5'- CCTCGCACCTGGAGGCTGGCTG -3'
	Antisense	5'- TTATCAGTTGGGAAAATAGTTA -3'
U6	Sense	5'- CTCGCT TCG GCAGCACA -3'
	Antisense	5'- AACGCT TCACGAATTTGCGT -3'