Abstract: Provided herein are bispecific polypeptides that bind IL13 and IL31 and methods of using IL13 and IL31 bispecific polypeptides to modulate the biological activity of IL13 and/or IL31. Also provided herein are nucleic acids, host cells, and methods of preparing polypeptides that bind IL13 and IL31. Uses and methods provided herein include, but are not limited to, methods of treating an IL13-associated condition and/or an IL31-associated condition, such as a pruritic condition, atopic dermatitis, prurigo nodularis, and chronic spontaneous urticaria.

Abstract: Provided are various embodiments relating to caninized, felinized, or equinized antibodies that bind canine, feline, and/or equine IL23 and/or TNF?, including bispecific antibodies that bind to both IL23 and TNF?. Such antibodies can be used alone or in combination in methods to treat canine, feline, and/or equine subjects with inflammatory conditions, such as inflammatory conditions in canines and felines, such as inflammatory bowel disease (IBD), osteoarthritis, and gastroenteritis.

Abstract: Provided are various embodiments relating to anti-IL31 antibodies having enhanced binding to canine IL31 and feline IL31. Such antibodies can be used in methods to treat IL31-induced conditions in companion animals, such as canines and felines. Antibodies with enhanced binding to canine IL31 and feline IL31 are provided. Antibody heavy chains and light chains that are capable of forming antibodies that bind canine and feline IL31 are also provided.

Abstract: Provided herein are polypeptides that bind IL31 and methods of using IL31-binding polypeptides to modulate the biological activity of IL31. Also provided herein are nucleic acids, host cells, and methods of preparing polypeptides that bind IL31. Uses and methods provided herein include, but are not limited to, methods of treating an IL31-associated condition, such as a pruritic condition, atopic dermatitis, prurigo nodularis, and chronic spontaneous urticaria. Also provided herein are methods of detecting using the polypeptides that bind IL31.

Abstract: Provided are various embodiments relating to variant IgG Fc polypeptides with altered FcRn binding activity. Also provided are polypeptides and pharmaceutical compositions comprising the variant IgG Fc polypeptides described herein. Polypeptides comprising variant IgG Fc polypeptides of the present invention may have extended half-life in vivo. Such products may be used in methods to treat disease in companion animals, such as canines, felines, and equines.

Abstract: Provided are various embodiments relating to anti-IL31 antibodies binding to canine IL31. Such antibodies can be used in methods to treat IL31-induced conditions in companion animals, such as canines, felines, and equines.

Abstract: Provided are various embodiments relating to anti-IL17A antibodies and IL17Ra ECD polypeptides that bind to IL17A. In various embodiments, such anti-IL17A antibodies or IL17Ra ECD polypeptides can be used in methods to treat IL17-induced conditions in subjects, such as humans or companion animals, such as canines, felines, and equines. Also provided are various embodiments relating to IgG Fc variant polypeptides having one or more amino acid substitutions for reducing binding to C1q and/or CD16. In some embodiments, the IgG Fc variants and/or polypeptides comprising the IgG Fc variants (e.g., fusion polypeptides comprising the IgG Fc variants and the anti-IL17A antibodies and/or IL17Ra ECD polypeptides described herein) may have reduced complement-mediated immune responses and/or antibody-dependent cell-mediated cytotoxicity.

Abstract: Provided herein are bispecific polypeptides that bind IL13 and IL31 and methods of using IL13 and IL31 bispecific polypeptides to modulate the biological activity of IL13 and/or IL31. Also provided herein are nucleic acids, host cells, and methods of preparing polypeptides that bind IL13 and IL31. Uses and methods provided herein include, but are not limited to, methods of treating an IL13-associated condition and/or an IL31-associated condition, such as a pruritic condition, atopic dermatitis, prurigo nodularis, and chronic spontaneous urticaria.

Abstract: Provided herein are bispecific polypeptides that bind IL13 and IL31 and methods of using IL13 and IL31 bispecific polypeptides to modulate the biological activity of IL13 and/or IL31. Also provided herein are nucleic acids, host cells, and methods of preparing polypeptides that bind IL13 and IL31. Uses and methods provided herein include, but are not limited to, methods of treating an IL13-associated condition and/or an IL31-associated condition, such as a pruritic condition, atopic dermatitis, prurigo nodularis, and chronic spontaneous urticaria.

Abstract: Provided herein are polypeptides that bind IL31 and methods of using IL31-binding polypeptides to modulate the biological activity of IL31. Also provided herein are nucleic acids, host cells, and methods of preparing polypeptides that bind IL31. Uses and methods provided herein include, but are not limited to, methods of treating an IL31-associated condition, such as a pruritic condition, atopic dermatitis, prurigo nodularis, and chronic spontaneous urticaria. Also provided herein are methods of detecting using the polypeptides that bind IL31.

Abstract: Provided herein are polypeptides that bind IL31 and methods of using IL31-binding polypeptides to modulate the biological activity of IL31. Also provided herein are nucleic acids, host cells, and methods of preparing polypeptides that bind IL31. Uses and methods provided herein include, but are not limited to, methods of treating an IL31-associated condition, such as a pruritic condition, atopic dermatitis, prurigo nodularis, and chronic spontaneous urticaria. Also provided herein are methods of detecting using the polypeptides that bind IL31.

Abstract: Provided are various embodiments relating to anti-IL31 antibodies binding to canine IL31. Such antibodies can be used in methods to treat IL31-induced conditions in companion animals, such as canines, felines, and equines.

Abstract: Provided are various embodiments relating to anti-IL31 antibodies binding to canine IL31. Such antibodies can be used in methods to treat IL31-induced conditions in companion animals, such as canines, felines, and equines.

Abstract: Provided are various embodiments relating to IL13R/IL4R heterodimeric proteins derived from companion animal species and that bind to IL13 and/or IL4. Such heterodimeric proteins can be used in methods to treat IL13 and/or IL4-induced conditions in companion animals, such as canines, felines, and equines.

Abstract: Provided are various embodiments relating to parvovirus antibodies, including caninized, felinized, and chimeric antibodies, that bind to canine and/or feline parvovirus, for example, having improved expression characteristics. In various embodiments, the parvovirus antibodies have ADCC, ADCP, and/or CDC effector functions. In various embodiments, such monoclonal parvovirus antibodies can be used in methods to prevent and/or treat parvoviral infection in subjects, such as dogs and cats. For example, the parvovirus antibodies provided may be used to provide passive immunity against infection with a canine or feline parvovirus.

Abstract: Provided are various embodiments relating to variant IgG Fc polypeptides of companion animals having increased Protein A binding for ease of purification, decreased C1q binding for reduced complement-mediated immune responses, decreased CD16 binding (e.g., for reduced antibody-dependent cellular cytotoxicity (ADCC) induction, increased stability, and/or the ability to form heterodimeric proteins. In addition, various embodiments relating to antibodies and fusion proteins comprising such variant IgG Fc polypeptides are provided. Also provided are various embodiments relating to contiguous polypeptides comprising one or more variant GLP1 polypeptide(s) having improved serum half-life. Further provided are various embodiments relating to contiguous polypeptides or heterodimeric polypeptides comprising a GLP1 polypeptide and a glucagon polypeptide as a dual GLP1 receptor and glucagon receptor agonist.

Abstract: Provided are various embodiments relating to variant IgG Fc polypeptides of companion animals having increased Protein A binding for ease of purification, decreased C1q binding for reduced complement-mediated immune responses, decreased CD16 binding (e.g., for reduced antibody-dependent cellular cytotoxicity (ADCC) induction), increased stability, and/or the ability to form multimeric proteins. In addition, various embodiments relating to antibodies and fusion proteins comprising such variant IgG Fc polypeptides are provided. In various embodiments, such polypeptides may be used to treat companion animals, such as canines, felines, and equines.

Abstract: Provided are various embodiments relating to variant asparaginase polypeptides with enhanced stability, pharmacodynamics, and/or reduced immunogenicity. The variant asparaginase polypeptides may be used as therapeutics in mammals, including human, canines, felines, and equines.

Abstract: Provided are various embodiments relating to IL13R/IL4R contiguous polypeptides derived from companion animal species and that bind to IL13 and/or IL4. Such contiguous polypeptides can be used in methods to treat IL13 and/or IL4-induced conditions in companion animals, such as canines, felines, and equines.

Abstract: Provided are various embodiments relating to IL13R/IL4R contiguous polypeptides and IL13R/IL4R heterodimeric proteins from companion animal species and that bind to IL13 and/or IL4, including long-acting contiguous polypeptides and heterodimeric proteins. Such heterodimeric proteins can be used in methods to treat IL13 and/or IL4-induced conditions in companion animals, such as canines, felines, and equines.