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    • 9. 发明授权
    • IL-7 drug substance, composition, preparation and uses
    • IL-7药物,成分,制剂及用途
    • US07585947B2
    • 2009-09-08
    • US10522883
    • 2003-08-06
    • Michel Christian MorreBrigitte AssoulinePierre CortezAnne Gregoire
    • Michel Christian MorreBrigitte AssoulinePierre CortezAnne Gregoire
    • C07K14/52C07K14/00C07K1/00A61K38/00
    • C07K14/5418A61K38/00C12N2799/022
    • The present invention relates, generally, to the fields of immunology and molecular biology. The invention discloses, more particularly, new and improved interleukin-7 drug substances, corresponding specific immunoreactive antibodies, as well as compositions comprising the same, their preparation and uses. The invention also discloses methods to characterize the impurity profile of a r-hIL-7 drug substance used for therapeutic purpose, as well as optimized nucleotide sequences encoding mammalian IL-7, recombinant expression vectors and methods for preparing and purifying said polypeptides. The present invention stems from the unexpected discovery that the long term activity of recombinant IL-7 is mostly expressed by a specific conformer and that other conformers, potential product-related substances, product-related impurities, and process-related impurities, which would normally be included in the specification of the drug substance and/or drug product, although bioactive, should be strictly minimized because they are able to trigger an immune reaction against the desired IL-7 molecule.
    • 本发明一般涉及免疫学和分子生物学领域。 本发明更具体地公开了新的和改进的白细胞介素-7药物物质,相应的特异性免疫反应性抗体,以及包含其的组合物,其制备和用途。 本发明还公开了表征用于治疗目的的r-hIL-7药物的杂质分布的方法,以及编码哺乳动物IL-7的优化的核苷酸序列,重组表达载体以及用于制备和纯化所述多肽的方法。 本发明源于意想不到的发现,即重组IL-7的长期活性主要由特定构象异构体表达,并且其它构象异构体,潜在的产品相关物质,与产品有关的杂质和与工艺有关的杂质通常 被包括在药物物质和/或药物产品的说明书中,尽管生物活性物质应被严格地最小化,因为它们能够引发针对所需IL-7分子的免疫反应。