Table 2. Primer sequences for RT-qPCR.
| Target | Primer sequences (5’-3’) |
| hsa-miR-503-5p RT-primer | GTCGTATCCAGTGCAGGGTCCGAGGTATTCGCACTGGATACGAC |
| hsa-miR-503-5p | F: TAGCAGCGGGAACAGTTCTGCAG |
| R: GTGCAGGGTCCGAGGT | |
| U6 | F: CTCGCTTCGGCAGCACA |
| R: AACGCTTCACGAATTTGCGT | |
| Human smad7 | F: CCTTAGCCGACTCTGCGAACTA |
| R: CCAGATAATTCGTTCCCCCTGT | |
| Human Smurf1 | F: CTGGATGCTTTTGGTCTGGT |
| R: CCTGATAGACGCGAACACAG | |
| Human Smurf2 | F: CGATGGCTGTTAGCAGCTTTTC |
| R: 5'-TGCCTCTGCAGGGCTTCAAAG | |
| Human TGF-β | F: CGATGGCTGTTAGCAGCTTTTC |
| R: TGCCTCTGCAGGGCTTCAAAG | |
| Human GAPDH | F:CATCGAAGGTGGAAGAGTGG |
| R: CATCAAGAAGGTGGTGAAGC | |
| Cel-miR-39-3p | F: GGTCACCGGGTGTAAATCAGCTTG |
| Mmu-miR-503-5p | F:TAGCAGCGGGAACAGTACTGC |
| Mmu-U6 | F: CTCGCTTCGGCAGCACA |
| Mmu-Smurf1 | F: AGTTCGTGGCCAAATAGTGG |
| R: GTTCCTTCGTTCTCCAGCAG | |
| Mmu-Smurf2 | F: GTGAAGAGCTCGGTCCTTTG |
| R: AGAGCCGGGGATCTGTAAAT | |
| Mmu-smad7 | F: GTGGCATACTGGGAGGAGAA |
| R: GATGGAGAAACCAGGGAACA | |
| Mmu-TGF-β | F: ACTGCTATGCTGCCTGCTCTTACT |
| R: TGGCCTTGTAGACACCTTGGTCTT | |
| Mmu-GAPDH | F: CATCAAGAAGGTGGTGAAGC |
| R: CATCGAAGGTGGAAGAGTTGG |
F, forward; R, reverse