Table 2. Primer sequence for quantitative real-time polymerase chain reaction (qTR-PCR) assay.

Target gene	Primer sequence
miR-21	F: 5′-ACACTCCAGCTGGGTAGCTTAT-3′
	R: 5′-TGGTGTCGTGGAGTCG-3′
U6	F: 5′-CTGCTTCGGCAGCACA-3′
	R: 5′-AACGCTTCACGAATTTGCGT-3′
E-cadherin	F: 5′- CAACGACCCAACCCAAGAA-3′
	R: 5′- CCGAAGAAACAGCAAGAGCA-3′
N-cadherin	F: 5′-TTGGTTTGGGGAGGGAGA-3′
	R: 5′-CTGGGGTCAGAGGTGTATCATTT-3′
β-catenin	F: 5′-TGCCAAGTGGGTGGTATAGAGG-3′
	R: 5′-CGCTGGGTATCCTGATGT-3′
Vimentin	F: 5′-GGCTCAGATTCAGGAACAGC-3′
	R: 5′-GCTTCAACGGCAAAGTTCTC-3′
Slug	F: 5′-CAAGGACACATTAGAACTCACAC-3′
	R: 5′-CTACACAGCAGCCAGATTC-3′
PTEN	F: 5′-CCAAGCTTATGACAGCCATCATC-3′
	R: 5′-CGCGGATCCTCAGACTTTTGTAA-3′
β-actin	F: 5′-GAATCAATGCAAGTTCGGTTCC-3′
	R: 5′-TCATCTCCGCTATTAGCTCCG-3′

Note: F, forward; R, reverse.