Abstract: Provided herein are biparatopic antigen-binding constructs that specifically bind HER2. The biparatopic antigen-binding constructs comprise one antigen-binding moiety that binds to ECD2 of HER2, a second antigen-binding moiety that binds to ECD4 of HER2, and an Fc. At least one of the antigen-binding moieties is an scFv. The biparatopic antigen-binding constructs can be used in the treatment of cancer.

Abstract: This invention relates to monovalent and multivalent, monospecific binding proteins and to multivalent, multispecific binding proteins. One embodiment of these binding proteins has one or more binding sites where each binding site binds with a target antigen or an epitope on a target antigen. Another embodiment of these binding proteins has two or more binding sites where each binding site has affinity towards different epitopes on a target antigen or has affinity towards either a target antigen or a hapten. The present invention further relates to recombinant vectors useful for the expression of these functional binding proteins in a host. More specifically, the present invention relates to the tumor-associated antigen binding protein designated RS7, and other EGP-1 binding-proteins. The invention further relates to humanized, human and chimeric RS7 antigen binding proteins, and the use of such binding proteins in diagnosis and therapy.

Abstract: The present invention relates to compositions comprising polypeptides, especially polypeptides capable of specifically binding predetermined antigens. The polypeptide in the composition comprises at least two antigen binding sites. These at least two antigen binding sites are located on a single polypeptide chain. One of the at least two antigen binding sites specifically binds the human CD3 antigen. The polypeptide may exist in both monomeric form and multimeric form. The multimeric form of the polypeptide constitutes no more than 5% of the total weight of the combined monomeric and multimeric forms of said polypeptide.

Abstract: Disclosed herein are methods and reagents for determining the responsiveness of cancer to an epidermal growth factor receptor (EGFR) targeting treatment. The detection of these mutations will allow for the administration of gefitinib, erlotinib and other tyrosine kinase inhibitors to those patients most likely to respond to the drug.

Abstract: A bispecific antibody format providing ease of isolation is provided, comprising immunoglobulin heavy chain variable domains that are differentially modified in the CH3 domain, wherein the differential modifications are non-immunogenic or substantially non-immunogenic with respect to the CH3 modifications, and at least one of the modifications results in a differential affinity for the bispecific antibody for an affinity reagent such as Protein A, and the bispecific antibody is isolable from a disrupted cell, from medium, or from a mixture of antibodies based on its affinity for Protein A.

Abstract: The present invention relates to antibodies, e.g., full length antibodies or antigen binding fragments thereof, that specifically bind to BCMA (B-Cell Maturation Antigen) and/or CD3 (Cluster of Differentiation 3). The invention also relates to antibody conjugates (e.g., antibody-drug-conjugates) comprising the BCMA antibodies, compositions comprising the BCMA antibodies, and methods of using the BCMA antibodies and their conjugates for treating conditions associated with cells expressing BCMA (e.g., cancer or autoimmune disease). The invention further relates to heteromultimeric antibodies that specifically bind to CD3 and a tumor cell antigen, (e.g., bispecific antibodies that specifically bind to CD3 and BCMA). Compositions comprising such heteromultimeric antibodies, methods for producing and purifying such heterodimeric antibodies, and their use in diagnostics and therapeutics are also provided.

Abstract: The present application discloses variants of Pertuzumab. In particular, it discloses: an unpaired cysteine variant comprising Cys23/Cys88 unpaired cysteines in one or both variable light domains of Pertuzumab, an afucosylated variant of Pertuzumab, a low-molecular-weight-species (LMWS) of Pertuzumab, and a high-molecular-weight-species (HMWS) or Pertuzumab. The application further discloses the isolated variants, compositions, pharmaceutical compositions, and articles of manufacture comprising the variants, as well as methods of making and characterizing the variants and compositions thereof.

Abstract: Monoclonal antibodies against LRP6 and that block the Wnt signaling pathway are disclosed. Methods of production and use thereof are also disclosed.

Abstract: Disclosed are antibodies (immunoglobulins) and fragments thereof that hydrolyze or bind polypeptide antigens belonging to Staphyloccus aureus, hepatitis C virus, human immunodeficiency virus and Alzheimer's disease. Also disclosed are novel methods to improve the antigen reactivity of the immunoglobulins and to treat a pathophysiological condition using the immunoglobulins as therapeutics.

Abstract: The invention is directed to novel antibody binding compounds specific for the human B7H3 and uses of such compounds for diagnostic and therapeutic purposes.

Abstract: The present disclosure relates to a nucleotide sequence comprising the sequence of SEQ ID NO: 5, and/or sequence of SEQ ID NO: 6, vector and host cell line comprising the nucleotide. The present disclosure also relates to an antibody that binds to extracellular region of human CD147, wherein the antibody comprises a heavy chain variable region having the amino acid sequence of SEQ ID NO: 2, and/or a light chain variable region having the amino acid sequence of SEQ ID NO: 1, and the antibody contains a glycoform lacking both fucose residues and xylose residues, pharmaceutical composition comprising the antibody or fragment thereof, the method of producing the antibody or fragment thereof, and use of the pharmaceutical composition in treatment of CD147 expression-related diseases.

Abstract: Disclosed herein are antibodies which specifically bind to at least one epitope defined by the immunogenic glycopeptide. Other aspects of the present disclosure are pharmaceutical composition comprising the antibody; and method for preventing and/or treating Globo-H-positive cancer.

Abstract: The present application relates to compositions of humanized and humanized/deimmunized anti-endoglin antibodies and antigen-binding fragments thereof. One aspect relates to antibodies having one or more modifications in at least one amino acid residue of at least one of the framework regions of the variable heavy chain, the variable light chain or both. Another aspect relates to antibodies which bind endoglin and inhibit angiogenesis. Another aspect relates to the deimmunization of humanized antibodies to reduce immunogenicity. Another aspect relates to the use of humanized and humanized/deimmunized antibodies which bind endoglin for the detection, diagnosis or treatment of a disease or condition associated with endoglin, angiogenesis or a combination thereof.

Abstract: The present disclosure provides anti-CD73 binding molecules, e.g., antibodies and antigen binding fragments thereof. Also provided are pharmaceutical formulations comprising the disclosed compositions, and methods for the diagnosis and treatment of diseases associated with CD73-expression, e.g., cancer. Such diseases can be treated, e.g., by direct therapy with the anti-CD73 binding molecules disclosed herein (e.g., naked antibodies or antibody-drug conjugates that bind CD73), by adjuvant therapy with other antigen-binding anticancer agents such as immune checkpoint inhibitors (e.g., anti-CTLA-4 and anti-PD-1 monoclonal antibodies), and/or by combination therapies where the anti-CD73 molecules are administered before, after, or concurrently with chemotherapy.

Abstract: This invention relates to humanized antibodies that selectively bind the 31.1 epitope on the A33 protein differentially expressed in cancers including, lung cancer, ovarian cancer, pancreas cancer, breast cancer, and colon cancer, and diagnostic and therapeutic usages.

Abstract: There is disclosed compositions and methods relating to or derived from anti-ErbB3 antibodies. More specifically, there is disclosed fully human antibodies that bind ErbB3, ErbB3-binding fragments and derivatives of such antibodies, and ErbB3-binding polypeptides comprising such fragments. Further still, there is disclosed nucleic acids encoding such antibodies, antibody fragments and derivatives and polypeptides, cells comprising such polynucleotides, methods of making such antibodies, antibody fragments and derivatives and polypeptides, and methods of using such antibodies, antibody fragments and derivatives and polypeptides, including methods of treating or diagnosing subjects having ErbB3 related disorders or conditions, including various inflammatory disorders and various cancers.

Abstract: The present invention relates to compounds that bind to human vascular endothelial growth factor A (VEGFA) and human angiopoietin-2 (Ang2), and may be useful for treating angiogenic eye diseases, such as diabetic and other proliferative retinopathies, and for cancer, especially solid tumors driven by VEGFA and Ang2, including gastric, lung, hepatocellular carcinoma, ovarian, colorectal, and breast cancers.

Abstract: Disclosed herein are single domain serum albumins binding proteins with improved thermal stability, binding affinities, and robust aggregation profiles. Also described are multispecific binding proteins comprising a single domain serum albumin binding protein according to the instant disclosure. Pharmaceutical compositions comprising the binding proteins disclosed herein and methods of using such formulations are provided.

Abstract: The present invention provides agents with tumor-inhibiting activity, and which are selective for cells expressing or abnormally expressing a tumor-associated antigen. Said tumor-associated antigen has a nucleotide sequence selected from the group consisting of: (a) a nucleotide sequence selected from the specific sequences set forth herein, or a 6-50 contiguous nucleotide residue portion thereof; (b) a nucleotide sequence of a nucleic acid which hybridizes with a nucleic acid having the nucleotide sequence of (a) under stringent conditions; (c) a nucleotide sequence which is degenerate with respect to the nucleotide sequence of (a) or (b); and (d) a nucleotide sequence which is complementary to the nucleotide sequence of (a), (b) or (c). Pharmaceutical compositions and kits comprising the agents are also provided, as well as methods treating, diagnosing or monitoring a disease characterized by expression or abnormal expression of the tumor-associated antigen.

Abstract: This invention concerns the discovery of two distinct PCA3 mRNA sequences. One of these sequences corresponds to a short PCA3 mRNA molecule whereas the other PCA3 RNA molecule is longer as it comprises an additional sequence between exon 3 and exon 4a. The short RNA is associated with prostate cancer whereas the long RNA sequence is associated with a non-malignant state of the prostate. Based on the differential expression levels of these two PCA3 RNA sequences, protocols for the diagnosis of prostate disease are provided. The invention also relates to therapeutic approaches to prostate cancer.