HIF-1α	forward	5′-AAGAAACCGCCTATGACGTG-3′
	reverse	5′-CCACCTCTTTTTGCAAGCAT-3′
HIF-2α	forward	5′-CCCCAGGGGATGCTATTATT-3′
	reverse	5′-GGCGAAGAGCTTCTCGATTA-3′
MMP-2	forward	5′-CATCGCTGCACCATCGCCCATCATC-3′
	reverse	5′-CCCAGGGTCCACAGCTCATCATCATCAAAG-3′
MMP-9	forward	5′-GAAGACTTGCCGCGAGACCTGATCGATG-3′
	reverse	5′-GCACCAGCGATAACCATCCGAGCGAC-3′