Disclosed are methods of treating an autoimmune or inflammatory disease using a composition comprising an isolated antibody or an antigen-binding fragment or variant thereof that is capable of binding to muramyl peptide, derivative, analog or salt thereof, wherein said muramyl peptide comprises muramic acid and an amino acid selected from the group consisting of alanine, isoglutamine, glutamic acid and a salt thereof. In one preferred embodiment, the composition can comprise of the isolated antibody or an antigen-binding fragment and one or more therapeutic agents such as Tumor Necrosis Factor (TNF) inhibitor. The autoimmune or inflammatory disease is selected from a group consisting of sepsis, septic shock, Crohn's disease, rheumatoid arthritis, asthma, allergy, atopic disorders, multiple sclerosis, pertussis, gonorrhea, inflammatory bowel disease, and antibiotic associated disorder.

Disclosed are methods of treating an autoimmune or inflammatory disease using a composition comprising an isolated antibody or an antigen-binding fragment or variant thereof that is capable of binding to muramyl peptide, derivative, analog or salt thereof, wherein said muramyl peptide comprises muramic acid and an amino acid selected from the group consisting of alanine, isoglutamine, glutamic acid and a salt thereof. In one preferred embodiment, the composition can comprise of the isolated antibody or an antigen-binding fragment and one or more therapeutic agents such as Tumor Necrosis Factor (TNF) inhibitor. The autoimmune or inflammatory disease is selected from a group consisting of sepsis, septic shock, Crohn's disease, rheumatoid arthritis, asthma, allergy, atopic disorders, multiple sclerosis, pertussis, gonorrhea, inflammatory bowel disease, and antibiotic associated disorder.

Provided are novel FcRn antagonist compositions comprising a variant Fc region that binds specifically to FcRn with increased affinity and reduced pH dependence relative to the native Fc region. Also provided are FcRn antagonists with enhanced CD16 binding affinity. Also provided are methods of treating antibody-mediated disorders (e.g. autoimmune diseases) using the these FcRn antagonist compositions, nucleic acids encoding the FcRn antagonist compositions, recombinant expression vectors and host cells for making the FcRn antagonist compositions, and pharmaceutical compositions comprising the FcRn antagonist compositions.

Disclosed herein are antibodies and ILT5-binding fragments thereof that specifically bind to ILT5, e.g., human ILT5 (hILT5), and pharmaceutical compositions comprising such ILT5-binding antibodies and ILT5-binding fragments thereof.

The present disclosure provides binding proteins (e.g., antibodies or antigen binding fragments thereof) that specifically bind to Klebsiella pneumoniae O1 and induce opsonophagocytic killing of Klebsiella (e.g., Klebsiella pneumoniae). The present disclosure also provides methods of reducing Klebsiella (e.g., Klebsiella pneumoniae) or treating or preventing Klebsiella (e.g., Klebsiella pneumoniae) infection in a subject comprising administering the Klebsiella pneumoniae O1 binding proteins, (e.g., antibodies or antigen-binding fragments thereof) to the subject.

The present disclosure provides binding proteins (e.g., antibodies or antigen binding fragments thereof) that specifically bind to Klebsiella pneumoniae O1 and induce opsonophagocytic killing of Klebsiella (e.g., Klebsiella pneumoniae). The present disclosure also provides methods of reducing Klebsiella (e.g., Klebsiella pneumoniae) or treating or preventing Klebsiella (e.g., Klebsiella pneumoniae) infection in a subject comprising administering the Klebsiella pneumoniae O1 binding proteins, (e.g., antibodies or antigen-binding fragments thereof) to the subject.

The present invention describes antibodies that target CD19, wherein the antibodies comprise at least one modification relative to a parent antibody, wherein the modification alters affinity to an FcgγR or alters effector function as compared to the parent antibody. Also disclosed are methods of using the antibodies of the invention.

The invention provides anti-wall teichoic acid antibodies and antibiotic conjugates thereof, and methods of using the same.

The invention provides anti-wall teichoic acid antibodies and antibiotic conjugates thereof, and methods of using the same.

A method and system for targeting antigens unique to a tumor site. The method can include a first phase of monoclonal antibodies that bind to the tumor site. A second phase of monoclonal antibodies can be administered that bind to the first phase. A third phase of monoclonal antibodies can be administered that bind to the second phase. The third phase can include radionuclides to allow the tumor site to be imaged. Once identified, a phase of toxins can be administered, resulting in death of the tumor cells.