Abstract: Described herein are methods of preparing a hypersialylated human immunoglobulin G (hsIgG) preparations.

Abstract: The present application features antibodies that bind to human neonatal Fc receptor (FcRn). These anti-FcRn antibodies are useful, e.g., to promote clearance of autoantibodies in a subject, to suppress antigen presentation in a subject, to block an immune response, e.g., block an immune complex-based activation of the immune response in a subject, and to treat immunological diseases (e.g., autoimmune diseases) in a subject. These anti-FcRn antibodies are also useful, e.g., to decrease pathogenic antibody transport across the placenta of a pregnant subject, to increase pathogenic antibody catabolism in a pregnant subject, and to treat an antibody-mediated enhancement of viral disease in a fetus or a neonate.

Abstract: The present application features antibodies that bind to human neonatal Fc receptor (FcRn). These anti-FcRn antibodies are useful, e.g., to promote clearance of autoantibodies in a subject, to suppress antigen presentation in a subject, to block an immune response, e.g., block an immune complex-based activation of the immune response in a subject, and to treat immunological diseases (e.g., autoimmune diseases) in a subject. These anti-FcRn antibodies are also useful, e.g., to decrease pathogenic antibody transport across the placenta of a pregnant subject, to increase pathogenic antibody catabolism in a pregnant subject, and to treat an antibody-mediated enhancement of viral disease in a fetus or a neonate.

Abstract: The present application features antibodies that bind to human neonatal Fc receptor (FcRn). These anti-FcRn antibodies are useful, e.g., to promote clearance of autoantibodies in a subject, to suppress antigen presentation in a subject, to block an immune response, e.g., block an immune complex-based activation of the immune response in a subject, and to treat immunological diseases (e.g., autoimmune diseases) in a subject. These anti-FcRn antibodies are also useful, e.g., to decrease pathogenic antibody transport across the placenta of a pregnant subject, to increase pathogenic antibody catabolism in a pregnant subject, and to treat an antibody-mediated enhancement of viral disease in a fetus or a neonate.

Abstract: The present disclosure relates to methods of evaluating, identifying, and/or producing (e.g., manufacturing) pharmaceutical products (e.g., protein therapeutics). In some instances, methods herein allow highly resolved evaluation of the disulfide bond profiles of protein therapeutics.

Abstract: Modified glycoproteins, and methods of making and using such modified glycoproteins, are described.

Abstract: The present invention features methods of treating a subject having an autoimmune disease and/or inflammation including determining the genotype, and/or the glycophenotype of the subject and administering to the subject an Fc-activity modulating agent or an anti-TNF? agent based on the genotype and/or the glycophenotype of the subject. The invention also features methods of predicting the responsiveness of a patient to an anti-TNF? treatment by identifying a patient having inflammation or an autoimmune disease, determining the genotype, or glycophenotype of the subject, and selecting the patient for treatment with an Fc-activity modulating agent or an anti-TNF? agent based on the genotype and/or the glycophenotype of the subject.

Abstract: Glycoproteins having particular sialylation patterns, and methods of making and using such glycoproteins, are described.

Abstract: Methods of producing recombinant therapeutic fusion proteins described herein can include culturing Chinese hamster ovary (CHO) cells under conditions suitable for expression of a recombinant therapeutic fusion protein including one or more glycans, where the CHO cells have not been genetically engineered to produce terminal alpha-galactosyl residues on glycans; treating the one or more glycans of the recombinant glycoprotein with one or more exoglycosidases; measuring glycans containing terminal galactose-alpha-1-3-galactose residues on the fusion protein by nuclear magnetic resonance (NMR); and producing a recombinant therapeutic fusion protein in the CHO cells if a target level of terminal galactose-alpha-1-3-galactose residues is measured.

Abstract: The present invention provides methods of evaluating a glycoprotein preparation for the absence, presence or amount of an N-acetylhexosamine glycan, e.g., an N-acetylglucosamine glycan.

Abstract: Modified glycoproteins, and methods of making and using such modified glycoproteins, are described.

Abstract: Modified glycoproteins, and methods of making and using such modified glycoproteins, are described.

Abstract: Glycoproteins having particular sialylation patterns, and methods of making and using such glycoproteins, are described.

Abstract: The present invention provides methods of evaluating a glycoprotein preparation for the absence, presence or amount of an N-acetylhexosamine glycan, e.g., an N-acetylglucosamine glycan.

Abstract: The present invention provides methods of evaluating CHO cells.

Abstract: Modified glycoproteins, and methods of making and using such modified glycoproteins, are described.

Abstract: The present disclosure relates to methods of evaluating, identifying, and/or producing (e.g., manufacturing) pharmaceutical products (e.g., protein therapeutics). In some instances, methods herein allow highly resolved evaluation of the disulfide bond profiles of protein therapeutics.

Abstract: Glycoproteins having particular sialylation patterns, and methods of making and using such glycoproteins, are described.

Abstract: The present invention provides methods of evaluating CHO cells.

Abstract: The present invention provides methods of evaluating CHO cells.