title: Inhibition of human interferon-gamma expression by antisense oligodeoxynucleotides.
abstract: We investigated 12 antisense oligodeoxynucleotides, complementary to different regions of the human interferon-gamma (HuIFN-gamma) gene, for their ability to inhibit HuIFN-gamma production in cultures of single donor total leukocytes or lymphocytes (95% purity). Out of seven oligomers, specific for a sequence including the translation initiation codon, 15 to 21 nucleotides long, the one resulting in the greatest inhibition was the 16-mer. An inhibitory effect of 90% could be achieved when the oligomer was added to cultures of lymphocytes in separate doses. Three other 16-mers, complementary to a sequence in the 5' noncoding region, in the coding region, or at the donor splice junction of the third intron respectively, were inhibitory to a lesser extent. Two 16-mers, one complementary to a sequence at the donor splice junction of the second intron and one specific for a sequence in the 3' untranslated region, showed no effect.
authors.affiliation: Laboratory for Biochemistry, Katholieke Universiteit Leuven, Belgium.
authors.forename: C M
authors.initials: CM
authors.lastname: Boeve
authors.forename: M
authors.initials: M
authors.lastname: De Ley
mesh_terms: D001483:Base Sequence; D002478:Cells, Cultured; D015870:Gene Expression / Q000187:drug effects*; D006801:Humans; D007371:Interferon-gamma / Q000096:biosynthesis*; D007700:Kinetics; D008214:Lymphocytes / Q000187:drug effects / Q000276:immunology / Q000378:metabolism*; D008969:Molecular Sequence Data; D016376:Oligonucleotides, Antisense / Q000494:pharmacology*; D013329:Structure-Activity Relationship; D013997:Time Factors
chemical_list: D016376:Oligonucleotides, Antisense; D007371:Interferon-gamma