A process is provided for inhibiting or preventing symptoms of necrotizing enterocolitis in a subject that includes the oral administration to the subject of a human polyclonal secretory IgA formed by the conjugation of human recombinant secretory component and pooled human plasma derived dimeric and polymeric. When administered in a therapeutic quantity, symptoms of necrotizing enterocolitis in the subject are inhibited or precluded.

The present invention relates to specific binding members, particularly antibodies and fragments thereof, which bind to amplified epidermal growth factor receptor (EGFR) and to the de2-7 EGFR truncation of the EGFR. In particular, the epitope recognized by the specific binding members, particularly antibodies and fragments thereof, is enhanced or evident upon aberrant post-translational modification. These specific binding members are useful in the diagnosis and treatment of cancer. The binding members of the present invention may also be used in therapy in combination with chemotherapeutics or anti-cancer agents and/or with other antibodies or fragments thereof.

Disclosed are an anti-idiotype antibody that specifically binds to an idiotope site of an anti-c-Met antibody, the use of the anti-idiotype antibody for detecting the anti-c-Met antibody, and methods, polypeptides, polynucleotides, compositions, and vaccines related thereto.

The present disclosure relates to in vivo methods for producing anti-idiotypic antibodies. In some aspects, anti-idiotypic antibodies are generated by co-administering to a mouse a first antibody having a murine IgG2a isotype and a second antibody that targets mouse B cells and has a murine IgG2a isotype. In some embodiments, the mouse expresses the Igh-1.sup.b allele of IgG2a, and the second antibody binds a mouse B cell surface marker selected from the group consisting of CD19, CD20, CD21, CD22, CD40, CD45, IgM, and IgD.

The present invention relates to novel antibodies and their use in medicine. In particular, the invention relates to bispecific antibodies capable of binding human PD-L1 and capable of binding human CD3. Novel classes of antibodies capable of binding human PD-L1 are also provided. The invention furthermore relates to uses of the antibodies of the invention and to methods, nucleic acid constructs and host cells for producing antibodies of the invention.

The present disclosure describes antigen binding molecules, including antibodies, that specifically bind to the anti-CD20 scFv-14 or Gibbon ape leukemia virus gp70 protein, as well as molecules comprising the described sequences and cells presenting such molecules. The antigen binding molecules may be used in research, diagnostic, clinical, and other applications.

The present invention provides antibodies and antigen-binding fragments thereof that bind to the antibody pembrolizumab (pembrolizumab). These antibodies are useful, for example, for use as positive controls in assays for detecting the presence of anti-drug antibodies in a sample, e.g., the blood of a patient who has been administered pembrolizumab.

Recombinant cell surface capture proteins and detection molecules that are useful for isolating and detecting cells that produce a secreted heterodimeric protein of interest (POI) that has an immunoglobulin CH3 domain and/or substituted CH3 domain are provided. Recombinant cell surface capture proteins and detection molecules that isolate and detect bispecific antibodies are also provided. The invention also provides recombinant antigen-binding proteins that are capable of recognizing and binding to proteins of interest that contain a CH3 domain and/or a modified CH3 domain, such as a CH3 domain with or without amino acid substitutions at H95 and Y96 (IMGT).

Lockable analogs of SpyCatcher, SnoopCatcher, DogCatcher, and SilkCatcher proteins, antigen binding proteins comprising lockable analogs of SpyCatcher proteins, nucleic acid constructs encoding the lockable analogs of SpyCatcher proteins are also provided. Vectors comprising the nucleic acid constructs, host cells comprising the vectors and nucleic acid constructs are, likewise, provided.

Isolated antigen binding molecules that specifically bind to an anti-CD19 scFv comprising SEQ ID NO: 1 are provided. The antigen binding molecules can be used in the methods provided herein.