The present disclosure is directed to antibodies binding to LILRBs and methods of detecting and treating cancer therewith.

The present disclosure features methods and compositions for modulating lipid metabolism to achieve improved production and quality of recombinant products, such as next generation biologics. Modulation of lipid metabolism as described herein includes, for example, introducing a lipid metabolism modulator described herein to a cell or a cell-free system. Also encompassed by the present disclosure are engineered cells with improved production capacity and improved product quality, methods for engineering such cells, and preparations and mixtures comprising the products from such cells.

The present invention relates to the field of producing, identifying, and selecting biological binding molecules, e.g. in particular antibodies or fragments thereof, which selectively bind to autonomously active B-cell receptors or B-cell receptor complexes. The method is used in order to select a biological binding molecule which specifically binds to an autonomously active or autonomously activated B-cell receptor as the target receptor, but not to an inactive or non-activated B-cell receptor, and is carried out in a cell-based system using immature B cells which are in the pro/pre-stage and cause a ‘triple knockout’ of the genes for RAG2 or RAG1, lambda5, and SLP65.

The present disclosure discloses an anti-Claudin 6 antibody and an antibody-drug conjugate. The present disclosure relates to an antigen sequence for preparing the Claudin 6 (CLDN6) antibody, a corresponding nucleotide sequence thereof, and a gene engineering vector, engineering bacterium or cell line for expressing the nucleotide sequence. A highly specific CLDN6 antibody may be produced by immunizing an animal with the antigenic polypeptide. Further, a corresponding monoclonal antibody may be obtained by preparing a hybridoma cell with a cell of the immunized animal. The anti-Claudin 6 antibody may be combined with a linking structure and a drug to form an antibody-drug conjugate. The antibody-drug conjugate may deliver the drug to a tumor cell having a positive expression of CLDN6 depending on the targeting effect of the CLDN6, thereby achieving the efficacy of specifically killing the tumor cell, which is of great significance for the treatment of the tumor.

The present invention relates to a method for producing the anti-IL36R antibody spesolimab. More specifically, the present invention relates to a method of producing spesolimab with a serum-free cell culture medium in a fed-batch culture in the presence of reduced copper and increased iron concentrations. In addition, the present invention relates to a composition comprising low levels of basic species of spesolimab and/or low levels of spesolimab species with high mannose structures.

A population of antibodies, wherein less than 80% of the oligosaccharides covalently attached to the population of the antibodies via N297 residues thereof comprise a core fucose residue; and wherein the population of the antibodies comprises an antibody which Fc region comprises K338A and T437R mutations, or K248E and T437R mutations.

The invention describes a method of generating antibodies to a mixture of peptidogenic proteins wherein the peptidogenic protein has altered conformational dynamics as compared to a starting protein and wherein the peptidogenic protein has a similar conformation to the starting protein. The peptidogenic proteins can be used to induce an immune response, which can lead to the generation of antibodies and/or can be used to vaccinate a mammal.

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.

Polypeptides that fold into biologies are stabilized by diselenide bonds between selenocysteine amino acids. Methods to produce such polypeptides in genomically recoded organisms (GRO) can be scaled up for industrial production. Since diselenides have the same geometric bond angles and torsions as disulfides, as well as very similar bond lengths, they can be substituted into polypeptides without disrupting the three dimensional structure of the polypeptides. Diselenides render the polypeptides resistant to reduction when they are exposed to blood serum or to reducing components of blood serum or to reducing components components within cells.

A human antibody or an antigen-binding fragment which binds human IL-6 receptor (hIL-6R) with a K.sub.D of about 500 pM or less and blocks IL-6 activity with an IC.sub.50 of 200 pM or less, is provided. In preferred embodiments, the antibody the antibody or antigen-binding fragment binds hIL-6R with an affinity at least 2-fold higher relative to its binding monkey IL-6R.