Inhibition of interleukin-1 type I receptor expression in human cell-lines by an antisense phosphorothioate oligodeoxynucleotide.
A 20 mer oligodeoxynucleotide designed to hybridize to specific 3'-untranslated sequences in the type I receptor IL-1r mRNA was identified which inhibited the expression of both IL-1r mRNA and protein in human A549 lung carcinoma cells and human dermal fibroblasts. The oligodeoxynucleotide exhibited an IC50 value of approximately 100 nM in both cell lines and reduced IL-1r mRNA expression for up to 48 h. Multiple scrambled control oligonucleotides were without effect on IL-1r mRNA expression. Treatment of A549 cells with this oligodeoxynucleotide (but not scrambled controls) inhibited the IL-1 stimulated expression of the cell adhesion molecule ICAM-1 but was without effect on the TNF-alpha induction of this molecule. This study demonstrates that phosphorothioate oligodeoxynucleotides can selectively inhibit IL-1r expression leading to a reduction in IL-1 dependent gene expression.
Miraglia
L
L
Department of Molecular Pharmacology, ISIS Pharmaceuticals, Carlsbad, CA 92008, USA.
Geiger
T
T
Bennett
C F
CF
Dean
N M
NM
D002277:Carcinoma / Q000378:metabolism*; D002460:Cell Line; D005347:Fibroblasts / Q000187:drug effects / Q000378:metabolism; D006801:Humans; D008175:Lung Neoplasms / Q000378:metabolism; D016376:Oligonucleotides, Antisense / Q000494:pharmacology*; D012333:RNA, Messenger / Q000096:biosynthesis / Q000235:genetics; D017472:Receptors, Interleukin-1 / Q000037:antagonists & inhibitors* / Q000096:biosynthesis* / Q000235:genetics; D013873:Thionucleotides / Q000494:pharmacology*; D014407:Tumor Cells, Cultured
D016376:Oligonucleotides, Antisense; D012333:RNA, Messenger; D017472:Receptors, Interleukin-1; D013873:Thionucleotides