Table I.

Oligonucleotide sequences of the primer pairs used for RT-PCR.

	Sequence of primers (5′-3′)
Name	Sense	Antisense
MMP-2	GGC-CCT-GTC-ACT-CCT-GAG-AT	GGC-ATC-CAG-GTT-ATC-GGG-GA
MMP-9	CGG-AGC-ACG-GAG-ACG-GGT-AT	TGA-AGG-GGA-AGA-CGC-ACA-GC
TIMP-1	TGG-GGA-CAC-CAG-AAG-TCA-AC	TTT-TCA-GAG-CCT-TGG-AGG-AG
β-catenin	GAA-ACG-GCT-TTC-AGT-TGA-GC	CTG-GCC-ATA-TCC-ACC-AGA-GT
E-cadherin	GAA-CAG-CAC-GTA-CAC-AGC-CCT	GCA-GAA-GTG-TCC-CTG-TTC-CAG
Claudin-1	TCA-GCA-CTG-CCC-TGC-CCC-AGT	TGG-TGT-TGG-GTA-AGA-GGT-TGT
Claudin-2	ACA-CAC-AGC-ACA-GGC-ATC-AC	TCT-CCA-ATC-TCA-AAT-TTC-ATG-C
Claudin-3	AAG-GCC-AAG-ATC-ACC-ATC-GTG	AGA-CGT-AGT-CCT-TGC-GGT-CGT
Claudin-4	TGG-ATG-AAC-TGC-GTG-GTG-CAG	GCA-GAA-GTG-TCC-CTG-TTC-CAG
Occludin	TCA-GGG-AAT-ATC-CAC-CTA-TCA-CTT-CAG	CAT-CAG-CAG-CAG-CCA-TGT-ACT-CTT-CAC
Zo-1	GAA-GCT-TCA-TCT-CCA-GTC-CCT	TGG-GTA-GGG-CTG-TTT-GTC-ATC-ATA
β-actin	CGT-ACC-ACT-GGC-ATC-GTG	GTG-TTG-GCG-TAC-AGG-TCT-TTG

MMP, matrix metalloproteinase; TIMP, tissue inhibitors of metalloproteinases.