C - Chemistry – Metallurgy – 07 – H
Patent
C - Chemistry, Metallurgy
07
H
C07H 21/00 (2006.01) A61K 31/70 (2006.01) A61K 48/00 (2006.01) C12N 15/11 (2006.01)
Patent
CA 2122132
2122132 9310138 PCTABS00022 The invention includes oligonucleotides which are complementary to the 3'-end untranslated regions or to at least some of the splicing recognition region of an mRNA transcript precursor for a particular immunoglobulin heavy chain. More particularly, the oligonucleotides are complementary to at least a continuous 12 nucleotide segment of the sequence upstream to the 3' splice junction up to and including the branch point A residue. Sequences of some of the oligonucleotides of the invention are the underlined portions of SEQ ID NOS: 3-33. These oligonucleotides will hybridize with the splicing recognition region and prevent or inhibit maturation of the mRNA. This will prevent production of mRNA encoding a complete immunoglobulin, so that it will not be translated into a functional immunoglobulin. The invention also pertains to the preparation of these anti-sense oligonucleotides for specifically suppressing IgG and/or IgM production in patients suffering from autoimmune diseases and for specifically suppressing IgE in patients suffering from allergic diseases manifested by immediate-type hypersensitivities.
Sim & Mcburney
Tanox Biosystems Inc.
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