发明名称 |
METHOD FOR PRODUCTION OF A THERAPEUTICALLY PURE GRANULOCYTE MACROPHAGE - COLONY STIMULATING FACTOR |
摘要 |
<p>A simple and scaleable process is provided for obtaining recombinant human GM CSF expressed in microbial cells, secreting mature GM-CSF, culturing these cells and purifying the protein in good yield and of a therapeutic grade quality. The steps include cloning, fermentation and purification of the protein. The purified protein is got by a process that involves lysing the microorganism, extraction of the processed and unprocessed forms of GM-CSF from the membrane pellet and selectively purifying the processed form of the protein from the unprocessed form by a two-step chromatography procedure. The purity of the processed form of GM-CSF (without signal peptide) obtained has endotoxin units, host cell proteins and host cell DNA within the specified compendial limits for therapeutic proteins.</p> |
申请公布号 |
EP1833846(A2) |
申请公布日期 |
2007.09.19 |
申请号 |
EP20050732861 |
申请日期 |
2005.03.18 |
申请人 |
ZENOTECH LABORATORIES LIMITED |
发明人 |
KOMATH, UMA DEVI;SAMADDAR, MITALI;LODHA, SANJAY;HAZARI, VENKATESWAR RAO;CHAKRAVARTHY, S. N.;MOVVA, LALITHA;CHIGURUPATI, JAYARAM |
分类号 |
C12N15/00;C07K5/00;C12P21/00 |
主分类号 |
C12N15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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