PH LOW INSERTION PEPTIDE AND COMPOSITION THEREOF

    公开(公告)号:US20240182529A1

    公开(公告)日:2024-06-06

    申请号:US16955653

    申请日:2018-11-30

    摘要: An improved pH low insertion peptide which is obtained by repeating the sequence of the extracellular domain of a pH low insertion peptide one or more times based on the sequence of the pH low insertion peptide already existing in the prior art. The pH low insertion peptide uses tumor cells cultured in vitro to prove that the improved pH low insertion peptide is targeted to the surface of tumor cells. Also disclosed are compositions composed of the pH low insertion peptide or the improved type thereof, and these compositions can be used for tumor treatment, diagnosis and identification. The experiments also find that the extracellular domain region of the pH low insertion peptide or the improved type thereof has antigenicity, and the immunized antibody can be used for tumor treatment. The above research results provide a basis for the development of tumor therapeutic drugs.

    Covalent Diabodies and Uses Thereof
    4.
    发明公开

    公开(公告)号:US20230382996A1

    公开(公告)日:2023-11-30

    申请号:US18164952

    申请日:2023-02-06

    申请人: MacroGenics, Inc.

    摘要: The present invention is directed to diabody molecules and uses thereof in the treatment of a variety of diseases and disorders, including immunological disorders, infectious disease, intoxication and cancers. The diabody molecules of the invention comprise two polypeptide chains that associate to form at least two epitope binding sites, which may recognize the same or different epitopes on the same or differing antigens. Additionally, the antigens may be from the same or different molecules. The individual polypeptide chains of the diabody molecule may be covalently bound through non-peptide bond covalent bonds, such as, but not limited to, disulfide bonding of cysteine residues located within each polypeptide chain. In particular embodiments, the diabody molecules of the present invention further comprise an Fc region, which allows antibody-like functionality to engineered into the molecule.