发明名称 |
METHOD OF PRODUCING FACTOR VIII PROTEINS BY RECOMBINANT METHODS |
摘要 |
Provided herein are methods and compositions for producing Factor VIII proteins. Such methods include introducing into a cell a nucleic acid molecule encoding a Factor VIII protein operably linked to a promoter, wherein the promoter is characterized by the ability to produce commercially viable Factor VIII protein; and incubating the cell under conditions for producing commercially viable Factor VIII protein. Also provided are nucleic acid molecules which encode a Factor VIII protein operably linked to a Chinese hamster elongation factor 1-a (CHEF1) promoter, which may be used in the methods provided herein. |
申请公布号 |
US2014357565(A1) |
申请公布日期 |
2014.12.04 |
申请号 |
US201414458537 |
申请日期 |
2014.08.13 |
申请人 |
The Regents of the University of Michigan ;CNJ Holdings Inc. |
发明人 |
KAUFMAN Randal J.;Pipe Steven W.;GRIFFITH Michael |
分类号 |
C07K14/755 |
主分类号 |
C07K14/755 |
代理机构 |
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代理人 |
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主权项 |
1. A method for producing a recombinant Factor VIII protein, comprising the steps of:
a. introducing into a cell a nucleic acid molecule encoding a modified human Factor VIII protein operably linked to a Chinese hamster elongation factor 1-alpha promoter, wherein said promoter is characterized by the ability to produce commercially viable Factor VIII protein and wherein said modification comprises a truncated or deleted B domain, a SQ linker, and a Pace/Furin cleavage site, characterized in that upon Pace/Furin cleavage and secretion the protein becomes a two-chain form comprising an A1-A2 chain and an A3-C1-C2 chain; and b. incubating the cell under appropriate conditions for producing commercially viable Factor VIII protein. |
地址 |
Ann Arbor MI US |