title: Antisense oligomers for selective suppression of MCP-1 synthesis in human pulmonary endothelial cells.
abstract: Endothelial synthesis of the C-C chemokine monocyte chemotactic protein-1 (MCP-1) has been implicated in the regulation of monocyte recruitment for extravascular pools under both physiologic and inflammatory conditions. We designed and characterized five antisense phosphorothioate oligodeoxynucleotides (PS-ODN) targeting MCP-1 secretion by human pulmonary artery endothelial cells (HPAEC) and pulmonary microvascular endothelial cells (HMVEC-L). The most effective PS-ODN (MCP-1 AS 2) dose-dependently suppressed the secretion of MCP-1 but not the secretion of the C-X-C chemokine interleukin-8 (IL-8) in both HPAEC and HMVEC-L in the nanomolar concentration range. Mismatch controls bearing 2 or 4 bp substitutions showed markedly reduced inhibitory capacity. MCP-1 mRNA levels were not affected even at the highest PS-ODN doses employed (ribonuclease protection assay), suggesting a translational arrest of MCP-1 production. Accordingly, PS-ODN exhibited no nonspecific side effects on immediate-early gene regulation of the transcription factor nuclear factor-kappaB (NF-kappaB), as analyzed by gel shift assays. Antisense pretreatment of HPAEC reduced the monocyte chemotactic bioactivity liberated from tumor necrosis factor-alpha (TNF-alpha)-activated endothelial cells (EC) and reduced the TNF-alpha-induced transendothelial monocyte migration. We conclude that nanomolar concentrations of specific antisense oligodeoxynucleotides effectively inhibit human endothelial MCP-1 synthesis and may thus provide a rational approach to modulate monocyte recruitment under inflammatory conditions.
authors.affiliation: Department of Internal Medicine, Justus-Liebig-University, Giessen, Germany.
authors.forename: U A
authors.initials: UA
authors.lastname: Maus
authors.forename: S
authors.initials: S
authors.lastname: Herold
authors.forename: K H
authors.initials: KH
authors.lastname: Schlingensiepen
authors.forename: R
authors.initials: R
authors.lastname: Schlingensiepen
authors.forename: T
authors.initials: T
authors.lastname: Dormayr
authors.forename: S
authors.initials: S
authors.lastname: Rosseau
authors.forename: R
authors.initials: R
authors.lastname: Maus
authors.forename: W
authors.initials: W
authors.lastname: Seeger
authors.forename: J
authors.initials: J
authors.lastname: Lohmeyer
mesh_terms: D002460:Cell Line; D002465:Cell Movement / Q000187:drug effects; D018932:Chemokine CCL2 / Q000037:antagonists & inhibitors* / Q000096:biosynthesis* / Q000235:genetics; D017077:Culture Media, Conditioned / Q000378:metabolism; D004730:Endothelium, Vascular / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism*; D006801:Humans; D016209:Interleukin-8 / Q000096:biosynthesis; D008168:Lung / Q000098:blood supply* / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D016328:NF-kappa B / Q000378:metabolism; D020319:Oligodeoxyribonucleotides, Antisense / Q000378:metabolism / Q000494:pharmacology*; D011500:Protein Synthesis Inhibitors / Q000378:metabolism / Q000494:pharmacology*; D011651:Pulmonary Artery; D011667:Pulmonary Veins; D012333:RNA, Messenger / Q000187:drug effects / Q000378:metabolism
chemical_list: D018932:Chemokine CCL2; D017077:Culture Media, Conditioned; D016209:Interleukin-8; D016328:NF-kappa B; D020319:Oligodeoxyribonucleotides, Antisense; D011500:Protein Synthesis Inhibitors; D012333:RNA, Messenger