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    • 8. 发明公开
    • METHOD FOR POSITIONING, IN CYTOPLASM, ANTIBODY HAVING COMPLETE IMMUNOGLOBULIN FORM BY PENETRATING ANTIBODY THROUGH CELL MEMBRANE, AND USE FOR SAME
    • EP3173428A4
    • 2018-01-24
    • EP15825418
    • 2015-07-22
    • ORUM THERAPEUTICS INC
    • KIM YONG SUNGCHOI DONG KISHIN SEUNG MINKIM SUNG HOON
    • C07K16/46A61K39/395A61K47/50A61P35/00C07K16/32
    • C07K16/32A61K2039/505C07K16/00C07K16/2863C07K16/30C07K16/40C07K16/46C07K2317/24C07K2317/515C07K2317/56C07K2317/565C07K2317/569C07K2317/73C07K2317/77C07K2317/82C07K2317/92G01N33/574
    • The present invention relates to a method of localizing an intact immunoglobulin-format antibody in cytosol by permeating membrane of cells. The present invention also relates to a light-chain variable region (VL) that induces an intact immunoglobulin-format antibody to penetrate the membrane of living cells and be localized in the cytosol, and to an antibody comprising the same. The present invention also relates to a biologically active molecule fused to the antibody and selected from the group consisting of peptides, proteins, small-molecule drugs, nanoparticles and liposomes. The present invention also relates to a composition for prevention, treatment or diagnosis of cancer, comprising: the antibody; or a biological active molecule fused to the antibody and selected from the group consisting of peptides, proteins, small-molecule drugs, nanoparticles and liposomes. The present invention also relates to a polynucleotide that encodes the light-chain variable region and the antibody. The present invention also relates to a method for producing an antibody which penetrates cells and is localized in the cytosol. According to the method of the present invention, which allows an intact immunoglobulin-format antibody to actively penetrate living cells and be localized in the cytosol, the antibody can penetrate living cells and be localized in the cytosol, without having to use a special external protein delivery system. Moreover, the use of the cytosol-penetrating light-chain variable region according to the present invention and the intact immunoglobulin-format antibody comprising the same can penetrate cells and remain in the cytosol, without affecting the high specificity and affinity of a human antibody heavy-chain variable region (VH) for antigens, and thus can be localized in the cytosol which is currently classified as a target in disease treatment based on small-molecule drugs, and at the same time, can exhibit high effects on the treatment and diagnosis of tumor and disease-related factors that show structurally complex interactions through a wide and flat surface between protein and protein. In addition, these can selectively inhibit KRas mutants, which are major drug resistance-associated factors in the use of various conventional tumor therapeutic agents, and at the same time, can be used in combination with conventional therapeutic agents to thereby exhibit effective anticancer activity.
    • 9. 发明公开
    • ANTI-GAP43 ANTIBODY
    • 抗GAP43抗体
    • EP2769988A1
    • 2014-08-27
    • EP12842284.7
    • 2012-10-19
    • Niigata University
    • TAKEUCHI, KoseiIGARASHI, MichihiroNOZUMI, MotohiroKAWASAKI, Asami
    • C07K16/18C12N5/10G01N33/53G01N33/543G01N33/577C12N15/09C12P21/08
    • G01N33/566C07K16/18C07K16/44C07K2317/33C07K2317/82G01N33/6854G01N2440/14
    • An anti-GAP43 antibody which is capable of distinguishing a non-phosphorylated threonine residue at position 89 (T89) from a phosphorylated threonine residue at position 89 (pT89) of mouse GAP43 set forth in SEQ ID NO: 13, and which is capable of specifically detecting a growth cone; an anti-GAP43 antibody which is capable of distinguishing a non-phosphorylated serine residue at position 96 (S96) from a phosphorylated serine residue at position 96 (pS96) of mouse GAP43, and which is capable of specifically detecting a growth cone; an anti-GAP43 antibody which is capable of distinguishing a non-phosphorylated threonine residue at position 172 (T172) from a phosphorylated threonine residue at position 172 (pT172) of mouse GAP43, and which is capable of specifically detecting a growth cone; and an immunological analysis method using these anti-GAP43 antibodies.
    • 能够区分89位(T89)的非磷酸化苏氨酸残基和SEQ ID NO:13所示的小鼠GAP43的89位(pT89)的磷酸化苏氨酸残基的抗GAP43抗体,其能够 具体检测生长锥; 抗GAP43抗体,其能够区分96位上的非磷酸化丝氨酸残基(S96)与小鼠GAP43的96位磷酸化丝氨酸残基(pS96),并且能够特异性检测生长锥; 能够区分位置172(T172)处的非磷酸化苏氨酸残基与小鼠GAP43的位置172(pT172)处的磷酸化苏氨酸残基并且能够特异性检测生长锥的抗GAP43抗体; 以及使用这些抗GAP43抗体的免疫学分析方法。