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    • 1. 发明申请
    • USE OF VALPROIC ACID FOR ENHANCING PRODUCTION OF RECOMBINANT PROTEINS IN MAMMALIAN CELLS
    • 用于增强在马马里亚细胞中重组蛋白生产的有效性
    • US20090023186A1
    • 2009-01-22
    • US11781252
    • 2007-07-22
    • Markus HildingerGaurav BackliwalFlorian Wurm
    • Markus HildingerGaurav BackliwalFlorian Wurm
    • C12P21/00
    • C12P21/02C07K16/00
    • Culturing cells for the commercial production of proteins for diagnosis and therapy is a costly and time consuming process. The equipment required is expensive, and production cost are high. In order to provide commercially viable processes it is desirable to use cell lines which produce large quantities of product with each production run. However, most cells do not produce large quantities of desired product per se either because they do not produce a large quantity of product per unit of time (specific productivity) or because they do not survive long enough in the culture medium (time). Here, we identified that addition of a valproic acid compound to the culture medium increases overall (batch) yield and titer. More importantly, compared to the widely used sodium butyrate, batch yields using a valproic acid compound as a medium additive are significantly higher.
    • 用于商业生产蛋白质用于诊断和治疗的培养细胞是昂贵且耗时的过程。 所需设备价格昂贵,生产成本高。 为了提供商业可行的方法,期望使用在每次生产运行时产生大量产品的细胞系。 然而,大多数细胞本身并不产生大量的所需产品,因为它们每单位时间(比生产率)不产生大量的产品,或者因为它们在培养基(时间)内不能足够长的时间生存。 在这里,我们确定向培养基中加入丙戊酸化合物提高了总体(批)产率和滴度。 更重要的是,与广泛使用的丁酸钠相比,使用丙戊酸化合物作为中等添加剂的批产量显着更高。
    • 4. 发明授权
    • Super-size adeno-associated viral vector harboring a recombinant genome larger than 5.7 kb
    • 超大尺寸腺相关病毒载体携带大于5.7kb的重组基因
    • US07943374B2
    • 2011-05-17
    • US11161890
    • 2005-08-21
    • Markus Hildinger
    • Markus Hildinger
    • C12N15/63C12N15/85
    • C12N15/86A61K48/00C12N2750/14143
    • Prior art teaches an effective packaging capacity for adeno-associated virus and adeno-associated viral vectors of 4.1 kb to 4.9 kb as well as a packaging limit of 5.2 kb to 5.6 kb. However, the inventor discovered that this packaging limit as well as that effective packaging capacity does not apply to all AAV serotypes: Whereas it is true that efficient packaging of AAV serotype 2 is limited to less than 5 kb, the inventor discovered that one can efficiently package more than 6 kb of genetic information into AAV capsids of other AAV serotypes, particularly into capsids of AAV serotype 5 and—to a lesser extent—into capsids of AAV serotype 7. This discovery will be useful in the context of gene therapy where large transgenes will have to be transferred such as the ABCA4 coding sequence, the Factor VIII coding sequence, the B-deleted Factor VIII coding sequence or minidystrophin genes.
    • 现有技术教导了4.1kb至4.9kb的腺相关病毒和腺相关病毒载体的有效包装能力以及5.2kb至5.6kb的包装限制。 然而,发明人发现,这种包装限制以及有效的包装能力并不适用于所有AAV血清型:鉴于AAV血清型2的有效包装确实被限制在小于5kb,发明人发现可以有效地 将超过6kb的遗传信息包装到其他AAV血清型的AAV衣壳中,特别是AAV血清型5的衣壳中,并且在较小程度上包装到AAV血清型7的衣壳中。该发现将在基因治疗的背景下有用,其中大的 必须转移转基因,如ABCA4编码序列,因子VIII编码序列,缺失B因子VIII编码序列或微小营养不良蛋白基因。