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Title:
ANTI-AQUAPORIN-4 ANTIBODY THAT ANTAGONIZES NMO-IgG
Document Type and Number:
WIPO Patent Application WO/2014/196658
Kind Code:
A1
Abstract:
Provided is a therapeutic drug for neuromyelitis optica. Specifically provided is an antibody or a functional fragment thereof that specifically binds to the extracellular domain of aquaporin-4, and includes: a heavy chain variable region comprising an amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 3, or SEQ ID NO: 5; and a light chain variable region comprising an amino acid sequence represented by SEQ ID NO: 2, SEQ ID NO: 4, or SEQ ID NO: 6.

Inventors:
YASUI MASATO (JP)
ABE YOICHIRO (JP)
MIYAZAKI KAORI (JP)
HAMAKUBO TAKAO (JP)
SAKIHAMA TOSHIKO (JP)
IWANARI HIROKO (JP)
ARAI OSAMU (JP)
Application Number:
PCT/JP2014/065398
Publication Date:
December 11, 2014
Filing Date:
June 04, 2014
Export Citation:
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Assignee:
UNIV KEIO (JP)
International Classes:
C07K16/28; A61K31/573; A61K39/395; A61P25/00; A61P27/02; A61P29/00; A61P43/00; C12N15/09; C12P21/08
Domestic Patent References:
WO2012145746A12012-10-26
Other References:
TRADTRANTIP L. ET AL.: "Anti-aquaporin-4 monoclonal antibody blocker therapy for neuromyelitis optica.", ANN. NEUROL., vol. 71, no. 3, 2012, pages 314 - 322
TANI T ET AL.: "Identification of binding sites for anti-aquaporin 4 antibodies in patients with neuromyelitis optica.", J. NEUROIMMUNOL., vol. 211, no. 1-2, 2009, pages 110 - 113, XP026170879, DOI: doi:10.1016/j.jneuroim.2009.04.001
PISANI F. ET AL.: "Identification of two major conformational aquaporin-4 epitopes for neuromyelitis optica autoantibody binding.", J. BIOL. CHEM., vol. 286, no. 11, 2011, pages 9216 - 9224
MIYAZAKI K. ET AL.: "Establishment of monoclonal antibodies against the extracellular domain that block binding of NMO-IgG to AQP4.", J. NEUROIMMUNOL., vol. 260, no. 1-2, July 2013 (2013-07-01), pages 107 - 116
Attorney, Agent or Firm:
HIRAKI, Yusuke et al. (JP)
Yusuke Hiraki (JP)
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