title: Oligonucleotides antisense to the interleukin 1 receptor mRNA block the effects of interleukin 1 in cultured murine and human fibroblasts and in mice.
abstract: Phosphodiester and phosphorothioate oligodeoxynucleotides (18 mers) were constructed antisense to sequences of the recently cloned murine and human IL-1 receptors. Murine antisense oligonucleotides inhibited IL-1-stimulated PGE2 synthesis by murine fibroblasts in culture in a time (days) and concentration-dependent (3 microM-30 microM) fashion. Murine sense oligonucleotide and an oligonucleotide antisense to human IL-1 receptor were without effect. Moreover, murine antisense oligonucleotides did not affect tumor necrosis factor- or bradykinin-stimulated PGE2 synthesis by murine fibroblasts. Similarly, antisense oligonucleotides to the human, but not the murine, IL-1 receptor inhibited IL-1-stimulated PGE2 synthesis by cultured human fibroblasts. The attenuation of the cellular response to IL-1 caused by the antisense oligonucleotides correlated with a loss in cell surface receptors for IL-1, without any change in the number of bradykinin receptors on these cells. When antisense oligonucleotides were encapsulated in liposomes, they blocked completely the appearance of newly synthesized IL-1 receptors and IL-1-stimulated PGE2 synthesis. In mice, subcutaneous injection with an oligonucleotide antisense to the murine IL-1 receptor markedly inhibited the infiltration of neutrophils in response to subsequent injection of IL-1. These data suggest that antisense oligodeoxynucleotides may share a role in the design of antiinflammatory therapeutics.
authors.affiliation: Nova Pharmaceutical Corporation, Baltimore, Maryland 21224.
authors.forename: R M
authors.initials: RM
authors.lastname: Burch
authors.forename: L C
authors.initials: LC
authors.lastname: Mahan
mesh_terms: D000818:Animals; D001483:Base Sequence; D002478:Cells, Cultured; D015232:Dinoprostone / Q000096:biosynthesis; D004305:Dose-Response Relationship, Drug; D005347:Fibroblasts / Q000187:drug effects; D006801:Humans; D007375:Interleukin-1 / Q000037:antagonists & inhibitors* / Q000378:metabolism; D008081:Liposomes / Q000008:administration & dosage; D051379:Mice; D008969:Molecular Sequence Data; D016376:Oligonucleotides, Antisense / Q000494:pharmacology*; D012333:RNA, Messenger / Q000235:genetics*; D011971:Receptors, Immunologic / Q000032:analysis / Q000235:genetics* / Q000502:physiology; D017472:Receptors, Interleukin-1
chemical_list: D007375:Interleukin-1; D008081:Liposomes; D016376:Oligonucleotides, Antisense; D012333:RNA, Messenger; D011971:Receptors, Immunologic; D017472:Receptors, Interleukin-1; D015232:Dinoprostone