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    Antibodies Directed Against CD127
    2.
    发明公开
    Antibodies Directed Against CD127 审中-公开

    公开(公告)号：US20230340133A1

    公开(公告)日：2023-10-26

    申请号：US17941885

    申请日：2022-09-09

    申请人： OSE Immunotherapeutics

    发明人： Nicolas Poirier ,  Caroline Mary ,  Bernard Vanhove

    IPC分类号： C07K16/28 ,  G01N33/50 ,  G01N33/68

    CPC分类号： C07K16/2866 ,  G01N33/5041 ,  G01N33/6854 ,  A61K2039/505

    摘要： The invention relates to antibodies directed against CD127, the alpha chain of the interleukin 7 (IL-7) receptor IL-7R), and which have antagonist properties for IL-7-IL-7R interaction, may present cytotoxic activity against CD127 positive cells but do not increase the maturation of dendritic cells (DCs) induced by TSLP, a cytokine also using CD127 as part of its receptor. Alternatively, or in addition, these antibodies do not induce the internalization of CD127 and/or inhibit the IL7-induced internalization of CD127. According to another aspect of the invention antibodies are provided which recognize a human CD127 epitope comprising sequences from the 2b site of CD127, in particular the epitope comprising comprises the human CD127 sequences of domain D1 and of the 2b site of CD127, in particular the epitope comprises at least one sequence from D1 comprising SEQ ID No: 115 (in particular comprising SEQ ID No: 110) and/or SEQ ID No: 111 and/or a sequence from the 2b site comprising the sequence of SEQ ID No: 116 and optionally also comprises SEQ ID No: 117 (in particular comprises SEQ ID No: 111). The antibodies of the invention are suitable for use in order to remedy to a condition diagnosed in a human patient which results from pathogenesis related to lymphopoiesis, when IL-7 signalling pathways provide contribution to said pathogenesis, especially when an increase in the maturation, more precisely the upregulation of costimulatory molecules, of dendritic cells is undesirable.

    Recombinant Monovalent Antibodies
    4.
    发明申请
    Recombinant Monovalent Antibodies 审中-公开

    公开(公告)号：US20170166643A1

    公开(公告)日：2017-06-15

    申请号：US15416513

    申请日：2017-01-26

    申请人： OSE Immunotherapeutics ,  Institut National de la Sante et de la Recherche Medicale (INSERM)

    发明人： Bernard Vanhove ,  Caroline Mary ,  Flora Coulon

    IPC分类号： C07K16/28

    摘要： The invention relates to recombinant monovalent antibodies which are heterodimers of a first protein chain comprising the variable domain of the heavy chain of an antibody of interest and the CH2 and CH3 domains of an IgG immunoglobulin and a second protein chain comprising the variable domain of the light chain of said immunoglobulin of interest and the CH2 and CH3 domains of said IgG immunoglobulin. These antibodies can be used in particular as therapeutic agents in all cases where monovalent binding to a ligand such a cellular receptor is required.