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    • 9. 发明公开
    • ANTIBODIES DIRECTED AGAINST CD127
    • GEGEN CD127 GERICHTETEANTIKÖRPER
    • EP3155014A1
    • 2017-04-19
    • EP15727989.4
    • 2015-06-10
    • OSE Immunotherapeutics
    • POIRIER, NicolasMARY, CarolineVANHOVE, Bernard
    • C07K16/28A61K39/00
    • C07K16/2866A61K2039/505C07K2317/24C07K2317/34C07K2317/565C07K2317/732C07K2317/76C07K2317/77C07K2317/92C07K2317/94G01N33/5041G01N33/6854G01N2333/5418G01N2333/70546G01N2333/7155G01N2500/00
    • The invention relates to antibodies directed against CD127, the alpha chain of the interleukin 7 (IL-7) receptor IL-7R), and whichi 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 the human CD127 sequences of SEQ ID No: 110 and/or 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.
    • 本发明涉及针对CD127,白细胞介素7(IL-7)受体IL-7R的α链)及其具有IL-7-IL-7R相互作用的拮抗剂性质的抗体可能对CD127阳性细胞具有细胞毒活性 但不会增加由TSLP诱导的树突状细胞(DC)的成熟,细胞因子也使用CD127作为其受体的一部分。 或者或另外,这些抗体不诱导CD127的内化和/或抑制IL7诱导的CD127内化。 根据本发明的另一方面,提供了抗体,其识别包含SEQ ID No:110和/或SEQ ID No:111的人CD127序列的人CD127表位。本发明的抗体适用于补救 特别是当IL-7信号通路对所述发病机制作出贡献时,特别是当树突状细胞的共刺激分子的上调增加是不期望的时,特别是当增加成熟度时,由患有淋巴细胞生成的发病机制导致的人类患者诊断出的症状。