Table 1. Primer Sequences for qRT-PCR.

	primer sequence: (5′-3′)
gene name	forward	reverse
GAPDH	CCTGCACCACCAACTGCTTA	GGCCATCCACAGTCTTCTGAG
MMP2	TGCTGGAGACAAATTCTGGA	TTGGTTCTCCAGCTTCAGGT
MMP9	TCTATGGTCCTCGCCCTGAA	CATCGTCCACCGGACTCAAA
E-cadherin	AGTCACTGACACCAACGATAAT	ATCGTTGTTCACTGGATTTGTG
Vimentin	GACGCCATCAACACCGAGTT	CTTTGTCGTTGGTTAGCTGGT
P2Y2	GGTGTCTGGGCGTCTTACG	TGGTGGTGACAAAGTAGAGCA
Snail	CCTTCGTCCTTCTCCTCTACTT	GCTTCGGATGTGCATCTTGA
Src	CAAGCAGACATAGAAGAGCCAAGA	TGAAATGCCACGGGACAAAGTA
EGFR	ATCATACGCGGCAGGACCA	TCTGACCGGAGGTCCCAAAC