Table 1. Primers for Real-time RT-PCR.

Genes	Forward primer sequence	Reverse primer sequence
Dll4	5′-CCCTGGCAATGTACTTGTGAT-3′	5′-TGGTGGGTGCAGTAGTTGAG-3′
HIF-1α	5′-TCGGCGAAGTAAAGAATCTGAA-3′	5′-CAAATCACCAGCATCCAGAAG-3′
VEGF	5′-CGCCTCTCCAAAAAGCTACAC-3′	5′-CTCACAGGAAACCGGACATC-3′
VEGFR-1	5′-CAGCATACCTCACTGTTCAAGG-3′	5′-CCACACAGGTGCATGTTAGAG-3′
VEGFR-2	5′-CGCGCCTCCTTCTAGACA-3′	5′-AGAAACACTAGGCAAACCCACA-3′
EphrinB2	5′-GAGCCCGGCGAACATTTACAT-3′	5′-TTCAGTCAATTCTCCAGCACGC-3′
EphB4	5′-TGGTCATTGTGGTCGCAGTTC-3′	5′-CCTCACAGCCTCATTAGGGTCTTC-3′
GAPDH	5′-GCGCTGAGTACGTCGTGGAG-3′	5′-CAGTTGGTGGTGCAGGAGG-3′