Phycoerythrin (PE) and peptide:MHCII (p:MHCII) reactive monoclonal antibodies; methods to generate monoclonal antibodies including, for example, peptide:MHC (p:MHC) reactive monoclonal antibodies; compositions including monoclonal antibodies; and uses thereof.

The present invention is directed to antigen binding proteins and in particular to IL-1β antigen binding proteins. The present invention further provides compositions comprising the antigen binding proteins, use of the antigen binding proteins and methods for production.

Hyperimmune IgG and/or IgM compositions and method for preparing thereof and method for obtaining hyperimmune human plasma from a donor. A liquid therapeutic hyperimmune globulin composition including human plasma-derived immunoglobulin G (IgG) having antibody titre between 250 and 2,500 per mg/mL of IgG and/or a SARS-CoV-2 neutralization activity (IC50 neutralization titer) between 1.5 and 15 per mg/mL of IgG for use in the treatment of coronavirus disease 2019 (COVID-19) in a patient in need thereof. A liquid therapeutic or prophylactic hyperimmune immunoglobulin composition including human plasma-derived immunoglobulin M (IgM) having a SARS-CoV-2 titre between 2,000 and 17,000 and/or a SARS-CoV-2 neutralization activity (IC50 neutralization titre) between 200 and 70,000, methods for preparing thereof, and the use thereof for the treatment or prophylaxis of COVID-19. A method for obtaining hyperimmune human plasma from a donor for use in the treatment of COVID-19.

The present disclosure relates to vectors for cloning and expressing genetic material including but not limiting to antibody gene or parts thereof and methods of generating said vectors. Said vectors express the antibody genes in different formats such as Fab or scFv as a part of intertransfer system, intratransfer system or direct cloning and expression in individual display systems. In particular, phage display technology is used to clone and screen potential antibody genes in phagemid which is followed by the transfer of said genes to yeast vector for further screening and identification of lead molecules against antigens. The present vectors have numerous advantages including uniquely designed inserts/expression cassettes resulting in efficient and smooth transfer of clonal population from phage to yeast vectors resulting in efficient library preparation and identification of lead molecules.

The present invention provides compositions, systems, kits, and methods for expression of one or more biomolecules in a subject, human or non-human mammal, (e.g., at therapeutic levels for the extended periods of time required to produce therapeutic effects). In certain embodiments, compositions, systems, kits, and methods are provided that comprise a first composition comprising polycationic structures (e.g., empty cationic liposomes, cationic micelles, cationic emulsions, or cationic polymers) and a second composition comprising expression vectors (e.g., non-viral expression vectors not associated with liposomes or other carriers) encoding one or more biomolecules of interest.

The present invention relates to an anti-MRS monoclonal antibody and, more specifically, to an antibody or a fragment thereof characterized by specifically binding to a fragment represented by amino acid 861-900 of a human-derived methionyl-tRNA synthetase (MRS) protein set forth in SEQ ID NO:1, a method for producing the same, and a composition for diagnosing cancer comprising the same. The antibody or the fragment thereof of the present invention specifically binds to the human-derived MRS, and has no cross-reactivity with other proteins comprising the same ARS family. Therefore, as MRS detection is possible, the antibody or a fragment thereof can be effectively used for diagnosing MRS-related cancer.

Antigen binding proteins that specifically recognize a target Melanoma-Associated Antigen A4 (MAGE-A4) peptide-MHC (pMHC), and nucleic acids encoding the same, are provided. Methods of producing antigen binding proteins that specifically recognize a target MAGE-A4 pMHC, and nucleic acid libraries encoding the same, are also provided.

The present invention provides a retroviral or lentiviral vector having a viral envelope which comprises a mitogenic T-cell activating transmembrane protein which comprises: (i) a mitogenic domain which binds a mitogenic tetraspanin, and (ii) a transmembrane domain; wherein the mitogenic T-cell activating transmembrane protein is not part of a viral envelope glycoprotein. When cells such as T-cells or Natural Killer cells are transduced by such a viral vector, they are activated by the mitogenic T-cell activating transmembrane protein.

The present disclosure is directed at an antibody conjugate having an antibody and a tag, wherein one or more element(s) present in the antibody exhibit an isotope ratio which differs from the naturally occurring isotope ratio of the one or more element(s), wherein the amount of the isotope which is less-common in nature, is increased to at least 4% of the atoms of the respective element in the antibody, as well as uses thereof.

Disclosed herein are nucleic acid constructs that can be used to build genetic circuits for producing antibodies comprising split toxins. Also disclosed herein are methods of producing platelets comprising the antibodies. The platelets produced by the methods disclosed herein can be used to target circulating tumor cells.