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Title:
HUMAN TRANSFERRIN RECEPTOR-BINDING ANTIBODY-PEPTIDE CONJUGATE
Document Type and Number:
WIPO Patent Application WO/2023/027125
Kind Code:
A1
Abstract:
[Problem] To provide an art for crossing the blood-brain barrier. [Solution] A conjugate comprising the following: (1) a transferrin receptor-binding peptide, wherein (i) the peptide contains the amino acid sequence from the 1st to the 15th (Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Arg-Arg-Tyr-MeY-Cys) of the amino acid sequence given by SEQ ID NO: 1; (ii) the peptide has an amino acid sequence exhibiting a substitution, deletion, addition, and/or insertion of from 1 to 11 amino acid residues in the amino acid sequence from the 1st to the 15th of the amino acid sequence given by SEQ ID NO: 1; (iii) the peptide contains the amino acid sequence from the 1st to the 12th (Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Ser-Cys) of the amino acid sequence given by SEQ ID NO: 14; or (iv) the peptide has an amino acid sequence exhibiting a substitution, deletion, addition, and/or insertion of from 1 to 8 amino acid residues in the amino acid sequence from the 1st to the 10th of the amino acid sequence given by SEQ ID NO: 14, and (2) a compound containing an antibody or an antigen-binding fragment thereof.

Inventors:
TAKAHASHI KENICHI (JP)
YODEN EIJI (JP)
HASHIMOTO HIDEHIKO (JP)
FUJIYAMA SAKI (JP)
OHUCHI MASAKI (JP)
SAWAI NAOKI (JP)
INABA SHINNOSUKE (JP)
Application Number:
PCT/JP2022/031933
Publication Date:
March 02, 2023
Filing Date:
August 24, 2022
Export Citation:
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Assignee:
PEPTIDREAM INC (JP)
JAPAN CHEM RES (JP)
International Classes:
C07K19/00; A61K38/10; A61K39/395; A61K47/68; A61P9/10; A61P17/02; A61P25/00; A61P25/14; A61P25/16; A61P25/18; A61P25/24; A61P25/28; A61P31/04; A61P31/12; A61P35/00; C07K7/08; C07K16/00; C07K16/18; C12N15/62
Domestic Patent References:
WO2020206093A12020-10-08
WO2012105595A12012-08-09
WO2021167107A12021-08-26
WO2016208695A12016-12-29
WO2019151539A12019-08-08
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Foreign References:
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JP2015528452A2015-09-28
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Attorney, Agent or Firm:
HIROSE Takayuki (JP)
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