摘要:
Disclosed is an advancement in provoked chemical cleavage. Thereby the invention provides the use of a diene as a chemically cleavable group attached to a Construct, and the use of a dienophile to provoke the release of the Construct by allowing the diene to react with a dienophile capable of undergoing an inverse electron demand Diels Alder reaction with the diene. The invention includes a kit for releasing a Construct C A bound to a Trigger T R , the kit comprising a tetrazine and a dienophile, wherein the Trigger is the tetrazine. The invention also includes the use of the formation of a pyridazine by reacting a tetrazine comprising a Construct C A bound thereto and a dienophile, as a chemical tool for the release, in a chemical, biological or physiological environment, of said Construct.
摘要:
Bispecific antigen-binding constructs e.g., antibodies conjugated to drugs (ADCs), which bind CD3 and other cell-surface target antigen such as tumor antigens e.g., CD19, CDH3, HER2, HER3 and EGFR antigens and methods of use are disclosed.
摘要:
Disclosed are linkers containing a 2,3-disubstituted succinic group, or 2-monosubstituted, or 2,3-disubstituted fumaric or maleic group for conjugation of two or more compounds/cytotoxic agents per linker to a cell-binding molecule through bridge linking pairs of thiols on the cell-binding molecule, as well as methods of making such linkers, of using such linkers in making homogeneous conjugates, and of application of the conjugates in treatment of cancers, infections and autoimmune disorders.
摘要:
The present invention relates to dimers comprising a first polypeptide and a second polypeptide, wherein each of said first and second polypeptide comprises at least one immunoglobulin single variable domain (1ISVD) and a C-terminal extension comprising a cysteine moiety (preferably at the C-terminus), wherein said first polypeptide and said second polypeptide are covalently linked via a disulfide bond between the cysteine moiety of said first polypeptide and the cysteine moiety of said second polypeptide, in which the dimer outperformed the benchmark constructs, e.g. cognate multivalent and multispecific constructs, in various assays. The present invention provides methods for making the dimers of the invention.
摘要:
Cysteine engineered antibodies comprising a free cysteine amino acid in the heavy chain or light chain are prepared by mutagenizing a nucleic acid sequence of a parent antibody and replacing one or more amino acid residues by cysteine to encode the cysteine engineered antibody; expressing the cysteine engineered antibody; and isolating the cysteine engineered antibody.
摘要:
The present invention provides, inter alia, methods for treating or ameliorating the effects of a disease, such as cancer, in a subject. The methods include: administering to a subject in need thereof (a) a therapeutically effective amount of an agent selected from an anti-metabolite agent or analog thereof and combinations thereof; and (b) a therapeutically effective amount of a monoclonal antibody or antigen binding fragment thereof, wherein the monoclonal antibody contains: (i) a heavy chain variable region (VH), which includes an amino acid sequence selected from SEQ ID NO:1, SEQ ID NO:3, SEQ ID NO:5, and SEQ ID NO:7; and (ii) a light chain variable region (VL), which includes an amino acid sequence selected from SEQ ID NO:2, SEQ ID NO:4, SEQ ID NO:6, and SEQ ID NO:8. Compositions, including pharmaceutical compositions, and kits for treating diseases, such as cancer, are also provided herein.
摘要翻译:本发明尤其提供了在受试者中治疗或改善疾病如癌症的作用的方法。 所述方法包括:向有需要的受试者施用(a)治疗有效量的选自抗代谢物或其类似物的药剂及其组合; 和(b)治疗有效量的单克隆抗体或其抗原结合片段,其中所述单克隆抗体含有:(i)重链可变区(VH),其包含选自SEQ ID NO:1的氨基酸序列, SEQ ID NO:3,SEQ ID NO:5和SEQ ID NO:7; 和(ii)轻链可变区(VL),其包含选自SEQ ID NO:2,SEQ ID NO:4,SEQ ID NO:6和SEQ ID NO:8的氨基酸序列。 本文还提供了组合物,包括药物组合物和用于治疗疾病如癌症的试剂盒。
摘要:
The present invention relates to linkers, containing amide surrogates with a regular or a novel lysosomal enzymatic cleavable dipeptidic unit, to connect cytotoxic drugs to antibodies. The present invention also relates to ADCs (antibody-drug conjugates) derived from these amide surrogate linkers for the treatment of cancers.
摘要:
A solid phase method of synthesising biomolecule-drug-conjugates (e.g. antibody-drug- conjugates) using photocleavable moieties. The method comprises: (i) providing an immobilised photocleavable group-biomolecule conjugate; (ii) optionally contacting the immobilised photocleavable group-biomolecule conjugate with a chemical modification agent or activating agent to provide an immobilised photocleavable group-biomolecule conjugate that is chemically modified or activated at the biomolecule portion;(iii) contacting the immobilised photocleavable group-biomolecule conjugate of step (i) or the chemically modified or activated immobilised photocleavable group-biomolecule conjugate of step (ii) with a drug component to form an immobilised photocleavable group-biomolecule-drug- conjugate; and (iv) irradiating the immobilised photocleavable group-biomolecule-drug- conjugate of step (iii) with radiation thereby releasing the biomolecule-drug-conjugate.