Table 1. Oligonucleotide sequences for primer pairs used in RT-PCR.

Gene	Primer sequence (5′-3′)
Krt1 (Forward)	GTGCTACAAACCAAATGGGAGC
Krt1 (Reverse)	CTGGCAAATGCTATCATACTGGG
Krt10 (Forward)	GGTCTGGAGATTGAACTACAGTCCC
Krt10 (Reverse)	GGTCCTTTAGATGATTGGTCGCC
Krt12 (Forward)	TCCTCCTGCAGATTGACAACG
Krt12 (Reverse)	TTCCAGGGACGACTTCATGG
Krt14 (Forward)	TGCTGGATGTGAAGACAAGGC
Krt14 (Reverse)	GACAAGGGTCAAGTAAAGAGTGAAGC
Krt15 (Forward)	CAGAGATGAGGGAGCAGTATGAAGC
Krt15 (Reverse)	TTCCAGCCGAGTCTTGATGTCC
Krt18 (Forward)	CACCACCAAGTCTGCCGAAATCAGG
Krt18 (Reverse)	AATCTTCTCCATCCTCCAGCAAGCG
Krt19 (Forward)	GGACCCTCCCGAGATTACAACC
Krt19 (Reverse)	TAGGTGGCTTCAGCATCCTTCC
Gapdh (Forward)	CAAAAGGGTCATCATCTCCGC
Gapdh (Reverse)	AGACAACCTGGTCCTCAGTGTAGC