Human umbilical vein endothelial cells (HUVECs) were grown on 0.1% gelatin coating in EndoGRO basal medium (Millipore) containing 5% fetal bovine serum (FBS) as previously described30 (link). Passage number did not exceed P7. Human epithelial kidney cells (HEK293) were used in promoter activity experiments. HEK293 were grown in 10% FBS DMEM media. Human TNFα (R&D Systems) was used in all in vitro experiments at 10ng/ml. Protein knockdown by siRNA (Ambion) in HUVECs was done by Oligofectamine (Invitrogen) for 3h and followed by 48h growth. Transfection of HEK293 by plasmid DNA was accomplished through Polyfect (Qiagen) according to manufacturer protocol. Transfection was allowed for 18h prior to treatment with harvest or TNFα treatment. THP-1 monocytes were grown in RPMI media containing 10% FBS.
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