HUMANIZED ANTIBODIES SPECIFIC TO PROTOFIBRILLAR FORM OF -AMYLOID PEPTIDE

PROBLEM TO BE SOLVED: To provide humanized antibodies specific to the protofibrillar form of the -amyloid peptide, and the use of the antibodies in the field of Alzheimer's disease.SOLUTION: The present invention relates to an antibody which binds to the A- peptides aggregated into senile plaqu...

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Hauptverfasser: BLANCHE FRANCIS, SOUAD NAIMI, NICOLAS BAURIN, VINCENT MIKOL, DUCHESNE MARC, SHI YI, BEATRICE CAMERON, LAURENT PRADIER
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide humanized antibodies specific to the protofibrillar form of the -amyloid peptide, and the use of the antibodies in the field of Alzheimer's disease.SOLUTION: The present invention relates to an antibody which binds to the A- peptides aggregated into senile plaques and not to the diffuse deposits of A- peptides and whose affinity for the protofibrillar form of the peptide A- is at least 100 times greater than its affinity for the other forms of this peptide. The invention further relates to a recombinant vector comprising a nucleic acid encoding the antibody, and a host cell containing the vector.SELECTED DRAWING: Figure 4A 【課題】β−アミロイドペプチドのプロトフィブリル体に特異的なヒト化抗体、および該抗体のアルツハイマー病の分野における使用の提供。【解決手段】抗体が、老人斑中で凝集したA−βペプチドには結合するが、Aβペプチドのびまん性沈着物には結合しないことを特徴とし、該抗体のペプチドAβのプロトフィブリル体に対する親和性が、該抗体のこのペプチドの他の形態に対する親和性よりも少なくとも100倍の大きさであることを特徴とする抗体。更に、該抗体をコードする核酸を含む、組換えベクター、及び該ベクターを含有する宿主細胞に関する。【選択図】図4A