Abstract: Materials and methods for using polypeptides containing fragments and variants of the antibody(ies) or portion(s) thereof that bind CD25 to treat cancer alone or in combination with other anti-neoplastic agents.

Abstract: Provided herein are anti-Trop 2 antibodies or binding fragments thereof that bind Trop 2, e.g., human Trop 2. The anti-Trop 2 antibodies of the disclosure are useful for the treatment of proliferative disorders or cells that express Trop 2 or mutant Trop 2. Also provided herein are methods of use for the anti-Trop 2 antibodies or binding fragments thereof, as well as bi-valent or multi-valent anti-Trop 2 antibodies or binding fragments thereof that may form complexes that attract immune effectors or binding to other cells, such as, a second antibody, antigen-binding of the second antibody or fragment thereof; a target-binding protein, a cytokine; a lectin; or a toxin.

Abstract: Materials and methods for using polypeptides containing fragments and variants of the antibody(ies) or portion(s) thereof that bind CD25 to treat cancer alone or in combination with other anti-neoplastic agents.

Abstract: Provided herein are anti-CCR8 antibodies or antigen binding fragment thereof, which bind to CCR8, wherein the CCR8 is a human CCR8 and the antibody does not bind human CCR4. The anti-CCR8 antibodies or antigen binding fragment of the disclosure are useful for the treatment of cancer diseases through the elimination of regulatory T cells. Also provided herein are methods of use for the anti-CCR8 antibodies or antigen binding fragment thereof.

Abstract: Provided herein are anti-CCR8 antibodies or antigen binding fragment thereof, which bind to CCR8, wherein the CCR8 is a human CCR8 and the antibody does not bind human CCR4. The anti-CCR8 antibodies or antigen binding fragment of the disclosure are useful for the treatment of cancer diseases through the elimination of regulatory T cells. Also provided herein are methods of use for the anti-CCR8 antibodies or antigen binding fragment thereof.

Abstract: Provided herein are anti-EGFRvII antibodies and binding fragments thereof. The anti-EGFRvIII antibodies of the disclosure are useful for the treatment of cancers through, e.g., antibody-dependent cell cytotoxicity (ADCC). Also provided herein are methods of making and using the anti-EGFRvIII antibodies for the treatment of cancer, and polynucleotides that encode the same.

Abstract: Materials and methods for using polypeptides containing fragments and variants of the antibody(ies) or portion(s) thereof that bind CD25 to treat cancer alone or in combination with other anti-neoplastic agents.