Abstract: Provided herein are isolated antibodies that immunospecifically bind to ROR1, bispecific antibodies comprising an antigen-binding site that immunospecifically binds to ROR1 and an antigen-binding site that immunospecifically binds to CD3, and methods of using the same.

Abstract: Provided herein are antibodies that specifically bind to IL1RAP. Also described are related polynucleotides capable of encoding the provided IL1RAP-specific antibodies or antigen-binding fragments, cells expressing the provided antibodies or antigen-binding fragments, as well as associated vectors and detectably labeled antibodies or antigen-binding fragments. In addition, methods of using the provided antibodies are described. For example, the provided antibodies may be used to diagnose, treat, or monitor IL1RAP-expressing cancer progression, regression, or stability; to determine whether or not a patient should be treated for cancer; or to determine whether or not a subject is afflicted with IL1RAP-expressing cancer and thus may be amenable to treatment with an IL1RAP-specific anti-cancer therapeutic, such as the multispecific antibodies against IL1RAP and CD3 described herein.

Abstract: Provided herein are antibodies that immunospecifically bind to BCMA. Also described are related polynucleotides capable of encoding the provided BCMA-specific antibodies or antigen-binding fragments, cells expressing the provided antibodies or antigen-binding fragments, as well as associated vectors and detectably labeled antibodies or antigen-binding fragments. In addition, methods of using the provided antibodies are described. For example, the provided antibodies may be used to diagnose, treat, or monitor BCMA-expressing cancer progression, regression, or stability; to determine whether or not a patient should be treated for cancer; or to determine whether or not a subject is afflicted with BCMA-expressing cancer and thus may be amenable to treatment with a BCMA-specific anti-cancer therapeutic, such as the multispecific antibodies against BCMA and CD3 described herein.

Abstract: Provided herein are isolated CD3×PSMA-bispecific antigen-binding molecules or bispecific antigen-binding fragment thereof wherein a FN3 domain specifically binds human prostate specific membrane antigen (PSMA) and a second antigen-binding site immunospecifically binds CD3. Also described are fusion proteins and related polynucleotides capable of encoding the provided fusion proteins and, cells expressing the provided fusion proteins. In addition, methods of using the provided isolated CD3×PSMA-bispecific antigen-binding molecules or bispecific antigen-binding fragment thereof are described.

Abstract: Provided herein are antibodies that immunospecifically bind to CD123. Also described are related polynucleotides capable of encoding the provided CD123-specific antibodies or antigen-binding fragments, cells expressing the provided antibodies or antigen-binding fragments, as well as associated vectors and detectably labeled antibodies or antigen-binding fragments. In addition, methods of using the provided antibodies are described. For example, the provided antibodies may be used to diagnose, treat, or monitor CD123-expressing cancer progression, regression, or stability; to determine whether or not a patient should be treated for cancer; or to determine whether or not a subject is afflicted with CD123-expressing cancer and thus may be amenable to treatment with a CD123-specific anti-cancer therapeutic, such as the multispecific antibodies against CD123 and CD3 described herein.