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    • 2. 发明授权
    • Bivalent IgY antibody constructs for diagnostic and therapeutic applications
    • 用于诊断和治疗应用的二价IgY抗体构建体
    • US07696323B2
    • 2010-04-13
    • US11510329
    • 2006-08-25
    • Reinhard BredehorstKerstin GreunkeThomas GrunwaldEdzard Spillner
    • Reinhard BredehorstKerstin GreunkeThomas GrunwaldEdzard Spillner
    • C07K16/00A61K39/395
    • C07K16/40C07K16/10C07K16/462C07K2317/23C07K2317/41C07K2317/622C07K2317/64
    • This invention relates to the field of recombinant antibody technology. It provides novel recombinant IgY antibody constructs for diagnostic and therapeutical applications. The bivalent antibody constructs display a heterotetrameric or homodimeric format stabilized by disulfide bonds. The constant heavy chain domains CH2-CH4 are partly or completely of avian origin, whereas the VH, VL, CL, and CH1 domains as well as the hinge region may be of avian origin or derived from any other species. The invention allows to combine the advantages of IgY antibodies with those of established mammalian monoclonal antibodies. IgY antibody constructs comprising nonglycosylated IgY constant heavy chain domains allow to reduce unwanted interactions with C-type lectins, e.g., in human sera. Furthermore, chimeric IgY antibody containing mammalian VH, VL, CL, and CH1 domains as well as a mammalian hinge region provide a higher molecular stability than IgY antibodies in acidic conditions and, thereby, are especially suited for peroral therapeutic applications.
    • 本发明涉及重组抗体技术领域。 它提供用于诊断和治疗应用的新型重组IgY抗体构建体。 二价抗体构建物显示通过二硫键稳定的异四聚体或同二聚体形式。 恒定的重链结构域CH2-CH4部分或完全是鸟类来源的,而VH,VL,CL和CH1结构域以及铰链区可以是鸟类来源的或衍生自任何其它物种。 本发明允许将IgY抗体的优点与已建立的哺乳动物单克隆抗体的优点相结合。 包含非糖基化IgY恒定重链结构域的IgY抗体构建体允许减少与C型凝集素的不期望的相互作用,例如在人血清中。 此外,含有哺乳动物VH,VL,CL和CH1结构域以及哺乳动物铰链区的嵌合IgY抗体在酸性条件下提供比IgY抗体更高的分子稳定性,因此特别适用于口服治疗应用。
    • 4. 发明申请
    • Bivalent IgY antibody constructs for diagnostic and therapeutic applications
    • 用于诊断和治疗应用的二价IgY抗体构建体
    • US20070141049A1
    • 2007-06-21
    • US11510329
    • 2006-08-25
    • Reinhard BredehorstKerstin GreunkeThomas GrunwaldEdzard Spillner
    • Reinhard BredehorstKerstin GreunkeThomas GrunwaldEdzard Spillner
    • A61K39/395C07K16/44
    • C07K16/40C07K16/10C07K16/462C07K2317/23C07K2317/41C07K2317/622C07K2317/64
    • This invention relates to the field of recombinant antibody technology. It provides novel recombinant IgY antibody constructs for diagnostic and therapeutical applications. The bivalent antibody constructs display a heterotetrameric or homodimeric format stabilized by disulfide bonds. The constant heavy chain domains CH2-CH4 are partly or completely of avian origin, whereas the VH, VL, CL, and CH1 domains as well as the hinge region may be of avian origin or derived from any other species. The invention allows to combine the advantages of IgY antibodies with those of established mammalian monoclonal antibodies. IgY antibody constructs comprising nonglycosylated IgY constant heavy chain domains allow to reduce unwanted interactions with C-type lectins, e.g., in human sera. Furthermore, chimeric IgY antibody containing mammalian VH, VL, CL, and CH1 domains as well as a mammalian hinge region provide a higher molecular stability than IgY antibodies in acidic conditions and, thereby, are especially suited for peroral therapeutic applications.
    • 本发明涉及重组抗体技术领域。 它提供用于诊断和治疗应用的新型重组IgY抗体构建体。 二价抗体构建物显示通过二硫键稳定的异四聚体或同二聚体形式。 恒定的重链结构域C H-2-C H 4部分或完全是鸟类来源的,而V H H, L,C L和C H 1结构域以及铰链区域可以是鸟类来源的或衍生自任何其它物种。 本发明允许将IgY抗体的优点与已建立的哺乳动物单克隆抗体的优点相结合。 包含非糖基化IgY恒定重链结构域的IgY抗体构建体允许减少与C型凝集素的不期望的相互作用,例如在人血清中。 此外,含有哺乳动物V H,V L,C L和C H H 1结构域的嵌合IgY抗体为 以及哺乳动物铰链区域在酸性条件下提供比IgY抗体更高的分子稳定性,因此特别适合于口服治疗应用。