S1.

List of oligonucleotide primers synthesized for real time PCR

Gene	Forward primer	Reverse primer
N-cadherin	5′-ATTGGACCATCACTCGGCTTA-3′	5′-CACACTGGCAAACCTTCACG-3′
Occludin	5′-TCAGGGAATATCCACCTATCACTTCAG-3′	5′-CATCAGCAGCAGCCATGTACTCTTCAC-3′
CD44	5-GACACCATGGACAAGTTTTGG-3	5-CGGCAGGTTATATTCAAATCG-3
MAPK-p38	5′-GAAGAGCCTGACCTACGAT-3′	5′- ACTGCCAAGGAGCATCTA-3′
ERK-1	5′-CCTGCGACCTTAAGATTTGTGATT-3′	5′-CAGGGAAGATGGGCCGGTTAGAGA-3′
ERK-2	5′-GCGCGGGCCCGGAGATGGTC-3′	5′-TGAAGCGCAGTAAGATTTTT-3′
NF-κB/p-65	5′-GACCTGAATGCTGTGCGG C-3′	5′-ATCTTGAGCTCGGCAGTGTT-3′
IκB-α	5′-CACTCCATCCTGAAGGCTACCAA-3′	5′-AAGGGCAGTCCGGCCATTA-3′
Snail	5′-TCTAGGCCCTGGCTGCTACAA-3′	5′-ACATCTGAGTGGGTCTGGAGGTG-3′
GAPDH	5′-TTTTTGGTTGAGCACAGG-3′	5′-TCAAGTTCCTTCATCCATTC-3′