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    • 8. 发明授权
    • Recombinant modified adenovirus fiber protein
    • 重组修饰型腺病毒纤维蛋白
    • US07611868B2
    • 2009-11-03
    • US10556877
    • 2004-05-10
    • Paolo MonaciLaura Fontana
    • Paolo MonaciLaura Fontana
    • C07K14/75C07K14/005C12N15/861A61K38/00A61K48/00
    • C07K14/005A61K48/00C07K2319/00C07K2319/735C12N15/86C12N2710/10322C12N2710/10343C12N2710/10345C12N2810/40C12N2810/80C12N2840/20
    • Recombinant adenoviruses comprising modified fiber proteins which expand the tropism of the adenovirus in comparison to wild-type virus are disclosed. The modified fiber proteins described herein contain a peptide ligand for a cell surface binding site other than CAR comprising a 14 amino acid core sequence containing both fixed and variable amino acid residues. The invention includes isolated nucleic acid molecules encoding the modified adenovirus fiber proteins disclosed, as well as recombinant vectors and host cells containing said nucleic acid molecules. Methods of identifying peptide ligands that bind to cell binding sites other than CAR are included comprising screening a phage-display library of peptide ligands expressed within an adenovirus fiber knob context on CAR-negative cells. Recombinant adenoviruses of the present invention will increase the ability of an adenovirus to transduce important cell and tissue targets as part of a gene therapy/gene vaccination regime that have been shown to be refractory to adenoviral infection.
    • 公开了包含与野生型病毒相比扩展腺病毒嗜性的修饰的纤维蛋白质的重组腺病毒。 本文所述的修饰的纤维蛋白质包含除CAR之外的细胞表面结合位点的肽配体,其包含含有固定和可变氨基酸残基的14个氨基酸核心序列。 本发明包括编码公开的修饰的腺病毒纤维蛋白的分离的核酸分子,以及含有所述核酸分子的重组载体和宿主细胞。 包括鉴定结合除CAR以外的细胞结合位点的肽配体的方法包括筛选在CAR阴性细胞上的腺病毒纤维旋钮上下文中表达的肽配体的噬菌体展示文库。 本发明的重组腺病毒将增加腺病毒转导重要细胞和组织靶标的能力,作为已被证明对腺病毒感染难治的基因治疗/基因疫苗接种方案的一部分。