Abstract: This invention relates to molecules, particularly polypeptides, more particularly fusion proteins that include a serpin polypeptide or an amino acid sequence that is derived from a serpin and second polypeptide comprising of at least one the following: an Fc polypeptide or an amino acid sequence that is derived from an Fc polypeptide; a cytokine targeting polypeptide or a sequence derived from a cytokine targeting polypeptide; a whey acidic protein (WAP) domain containing polypeptide or a sequence derived from a WAP containing polypeptide; and an albumin polypeptide or an amino acid sequence that is derived from a serum albumin polypeptide. This invention also relates to methods of using such molecules in a variety of therapeutic and diagnostic indications, as well as methods of producing such molecules.

Abstract: Provided herein are binding polypeptides that specifically bind PD-1. More specifically, provided herein are fusion proteins, including multivalent and/or multispecific constructs and chimeric antigen receptors, that bind PD-1. Also provided are pharmaceutical compositions containing the polypeptides, nucleic acid molecules encoding the polypeptides and vectors and cells thereof, and methods of use and uses of the provided PD-1 binding polypeptides for treating diseases and conditions, such as cancer.

Abstract: The invention relates generally to multispecific polypeptides having constrained CD3 binding. In some embodiments, the multispecific polypeptides contain cleavable linkers that, when cleaved, results in dual effector functions. Also provided are methods of making and using these multispecific polypeptides in a variety of therapeutic, diagnostic and prophylactic indications.

Abstract: Provided herein are VHH-containing polypeptides that bind CD123. Uses of the VHH-containing polypeptides are also provided.

Abstract: The invention relates generally to multispecific polypeptides having constrained CD3 binding. In some embodiments, the multispecific polypeptides contain cleavable linkers that, when cleaved, results in dual effector functions. Also provided are methods of making and using these multispecific polypeptides in a variety of therapeutic, diagnostic and prophylactic indications.

Abstract: This invention relates generally to molecules that specifically engage 41BB, a member of the TNF receptor superfamily (TNFRSF). More specifically, this invention relates to multivalent and multispecific molecules that bind at least 41BB.

Abstract: Provided herein are Siglec-8 binding proteins, and methods of using Siglec-8 binding proteins to modulate the biological activity of Siglec-8.

Abstract: This invention relates to molecules, particularly polypeptides, more particularly fusion proteins that include a serpin polypeptide or an amino acid sequence that is derived from a serpin and second polypeptide comprising of at least one the following: an Fc polypeptide or an amino acid sequence that is derived from an Fc polypeptide; a cytokine targeting polypeptide or a sequence derived from a cytokine targeting polypeptide; a (whey acidic protein) WAP domain containing polypeptide or a sequence derived from a WAP containing polypeptide; and an albumin polypeptide or an amino acid sequence that is derived from a serum albumin polypeptide. This invention also relates to methods of using such molecules in a variety of therapeutic and diagnostic indications, as well as methods of producing such molecules.

Abstract: Provided herein are binding polypeptides that specifically bind CD28. More specifically, provided herein are fusion proteins, including multivalent and/or multispecific constructs that bind at least CD28. Also provided are pharmaceutical compositions containing the polypeptides, nucleic acid molecules encoding the polypeptides and vectors thereof, and methods of use and uses of the provided CD28 binding polypeptides for treating diseases and conditions, such as cancer.

Abstract: Provided herein are VHH-containing polypeptides that bind canine PD-1. In some embodiments, VHH-containing polypeptides that bind and antagonize canine PD-1 are provided. Uses of the VHH-containing polypeptides are also provided.

Abstract: Provided herein are VHH-containing polypeptides that bind CD33. Uses of the VHH-containing polypeptides are also provided.

Abstract: The invention relates generally to multispecific polypeptides having constrained CD3 binding. In some embodiments, components of the multispecific polypeptides are connected by a non-cleavable linker. Also provided are methods of making and using these multispecific polypeptides in a variety of therapeutic, diagnostic and prophylactic indications.

Abstract: Provided herein are polypeptide comprising a modified IL-2, wherein the modified IL-2 has reduced affinity for the IL-2 receptor relative to wild type IL-2. In some embodiments, polypeptides comprising a modified IL-2 that bind and agonize activated T cells are provided. Uses of the polypeptides comprising a modified IL-2 are also provided.

Abstract: Provided herein are VHH-containing polypeptides that bind OX40. In some embodiments, VHH-containing polypeptides that bind and agonize OX40 are provided. Uses of the VHH-containing polypeptides are also provided.

Abstract: Provided herein are binding polypeptides that specifically bind B7H3. More specifically, provided herein are fusion proteins, including multivalent and/or multispecific constructs and chimeric antigen receptors, that bind B7H3. Also provided are pharmaceutical compositions containing the polypeptides, nucleic acid molecules encoding the polypeptides and vectors and cells thereof, and methods of use and uses of the provided B7H3 binding polypeptides for treating diseases and conditions, such as cancer.

Abstract: Provided herein are VHH-containing polypeptides that bind CD123. Uses of the VHH-containing polypeptides are also provided.

Abstract: This invention relates generally to molecules that specifically engage 41BB, a member of the TNF receptor superfamily (TNFRSF). More specifically, this invention relates to multivalent and multispecific molecules that bind at least 41BB.

Abstract: Provided herein are VHH-containing polypeptides that bind CD33. Uses of the VHH-containing polypeptides are also provided.

Abstract: The present disclosure provides improved CLL-1 targeting polypeptides and compositions for adoptive T cell therapies for treating, preventing, or ameliorating at least one symptom of a cancer, infectious disease, autoimmune disease, inflammatory disease, and immunodeficiency, or condition associated therewith.

Abstract: This invention relates to molecules, particularly polypeptides, more particularly fusion proteins that include a serpin polypeptide or an amino acid sequence that is derived from a serpin and second polypeptide comprising of at least one the following: an Fc polypeptide or an amino acid sequence that is derived from an Fc polypeptide; a cytokine targeting polypeptide or a sequence derived from a cytokine targeting polypeptide; a WAP domain containing polypeptide or a sequence derived from a WAP containing polypeptide; and an albumin polypeptide or an amino acid sequence that is derived from a serum albumin polypeptide. This invention also relates to methods of using such molecules in a variety of therapeutic and diagnostic indications, as well as methods of producing such molecules.