Abstract: The present disclosure provides isolated monoclonal antibodies that specifically bind to LAG-3 with high affinity, particularly human monoclonal antibodies. Preferably, the antibodies bind human LAG-3. In certain embodiments, the antibodies bind both human and monkey LAG-3 but do not bind mouse LAG-3. The invention provides anti-LAG-3 antibodies that can inhibit the binding of LAG-3 to MHC Class II molecules and that can stimulate antigen-specific T cell responses. Nucleic acid molecules encoding the antibodies of the invention, expression vectors, host cells and methods for expressing the antibodies of the invention are also provided. Immunoconjugates, bispecific molecules and pharmaceutical compositions comprising the antibodies of the invention are also provided. This disclosure also provides methods for detecting LAG-3, as well as methods for treating stimulating immune responses using an anti-LAG-3 antibody of the invention.

Abstract: The present disclosure provides isolated monoclonal antibodies that specifically bind to LAG-3 with high affinity, particularly human monoclonal antibodies. Preferably, the antibodies bind human LAG-3. In certain embodiments, the antibodies bind both human and monkey LAG-3 but do not bind mouse LAG-3. The invention provides anti-LAG-3 antibodies that can inhibit the binding of LAG-3 to MHC Class II molecules and that can stimulate antigen-specific T cell responses. Nucleic acid molecules encoding the antibodies of the invention, expression vectors, host cells and methods for expressing the antibodies of the invention are also provided. Immunoconjugates, bispecific molecules and pharmaceutical compositions comprising the antibodies of the invention are also provided. This disclosure also provides methods for detecting LAG-3, as well as methods for treating stimulating immune responses using an anti-LAG-3 antibody of the invention.

Abstract: Provided herein are antibodies, or antigen-binding portions thereof, that bind to T-cell immunoglobulin and mucin-domain containing-3 (TIM3) protein. Also provided are uses of these antibodies, or antigen-binding portions thereof, in therapeutic applications, such as treatment of cancer. Further provided are cells that produce the antibodies, or antigen-binding portions thereof, polynucleotides encoding the heavy and/or light chain regions of the antibodies, or antigen-binding portions thereof, and vectors comprising the polynucleotides encoding the heavy and/or light chain regions of the antibodies, or antigen-binding portions thereof.

Abstract: The present disclosure provides isolated monoclonal antibodies that specifically bind to LAG-3 with high affinity, particularly human monoclonal antibodies. Preferably, the antibodies bind human LAG-3. In certain embodiments, the antibodies bind both human and monkey LAG-3 but do not bind mouse LAG-3. The invention provides anti-LAG-3 antibodies that can inhibit the binding of LAG-3 to MHC Class II molecules and that can stimulate antigen-specific T cell responses. Nucleic acid molecules encoding the antibodies of the invention, expression vectors, host cells and methods for expressing the antibodies of the invention are also provided. Immunoconjugates, bispecific molecules and pharmaceutical compositions comprising the antibodies of the invention are also provided. This disclosure also provides methods for detecting LAG-3, as well as methods for treating stimulating immune responses using an anti-LAG-3 antibody of the invention.

Abstract: The present invention provides isolated monoclonal antibodies (e.g., humanized and human monoclonal antibodies) that bind to human Inducible T Cell COStimulator (ICOS) and exhibit therapeutically desirable functional properties, e.g., the ability to stimulate human ICOS activity. Nucleic acid molecules encoding the antibodies of the invention, expression vectors, host cells, and methods for expressing the antibodies of the invention are also provided. Immunoconjugates, bispecific molecules, and pharmaceutical compositions comprising the antibodies of the invention are also provided. The antibodies of the invention can be used, for example, as an agonist to stimulate or enhance an immune response in a subject, e.g., antigen-specific T cell responses against a tumor or viral antigen. The antibodies of the invention can also be used in combination with other antibodies (e.g., PD-1, PD-L1, and/or CTLA-4 antibodies) to treat, for example, cancer.

Abstract: The present invention relates to binding compounds specific for BTLA and uses thereof. More specifically, the invention relates to fully human antibodies that recognize human BTLA and modulate its activity in cancer, inflammatory, and autoimmune disorders.

Abstract: The present invention provides isolated monoclonal antibodies (e.g., humanized and human monoclonal antibodies) that bind to human Inducible T Cell COStimulator (ICOS) and exhibit therapeutically desirable functional properties, e.g., the ability to stimulate human ICOS activity. Nucleic acid molecules encoding the antibodies of the invention, expression vectors, host cells, and methods for expressing the antibodies of the invention are also provided. Immunoconjugates, bispecific molecules, and pharmaceutical compositions comprising the antibodies of the invention are also provided. The antibodies of the invention can be used, for example, as an agonist to stimulate or enhance an immune response in a subject, e.g., antigen-specific T cell responses against a tumor or viral antigen. The antibodies of the invention can also be used in combination with other antibodies (e.g., PD-1, PD-L1, and/or CTLA-4 antibodies) to treat, for example, cancer.

Abstract: The present invention provides isolated monoclonal antibodies (e.g., humanized and human monoclonal antibodies) that bind to human Inducible T Cell COStimulator (ICOS) and exhibit therapeutically desirable functional properties, e.g., the ability to stimulate human ICOS activity. Nucleic acid molecules encoding the antibodies of the invention, expression vectors, host cells, and methods for expressing the antibodies of the invention are also provided. Immunoconjugates, bispecific molecules, and pharmaceutical compositions comprising the antibodies of the invention are also provided. The antibodies of the invention can be used, for example, as an agonist to stimulate or enhance an immune response in a subject, e.g., antigen-specific T cell responses against a tumor or viral antigen. The antibodies of the invention can also be used in combination with other antibodies (e.g., PD-1, PD-L1, and/or CTLA-4 antibodies) to treat, for example, cancer.

Abstract: The present invention provides anti-CTLA-4 antibodies having enhanced ADCC activity, and their use in treating cancer. In one embodiment, the anti-CTLA-4 antibody is ipilimumab, and ADCC activity is enhanced by introducing G236A, S239D, A330L and I332E mutations (“GASDALIE”) into the Fc region of the heavy chain constant domain.

Abstract: The present invention relates to binding compounds specific for BTLA and uses thereof. More specifically, the invention relates to fully human antibodies that recognize human BTLA and modulate its activity in cancer, inflammatory, and autoimmune disorders.

Abstract: Provided herein are antibodies, or antigen binding portions thereof, that bind to glucocorticoid-inducible TNF receptor (GITR). Also provided are uses of these proteins in therapeutic applications, such as in the treatment of cancer. Further provided are cells that produce the antibodies, polynucleotides encoding the heavy and/or light chain variable region of the antibodies, and vectors comprising the polynucleotides encoding the heavy and/or light chain variable region of the antibodies.

Abstract: Provided herein are heavy chain constant regions (referred to as “modified heavy chain constant regions”), or functionally equivalent fragments thereof, that enhance biological properties of antibodies relative to the same antibodies in unmodified form. An exemplary modified heavy chain constant region includes an IgG2 hinge and three constant domains (i.e., CH1, CH2, and CH3 domains), wherein one or more of the constant region domains are of a non-IgG2 isotype (e.g., IgG1, IgG3 or IgG4). The heavy chain constant region may comprise wildtype human IgG domain sequences, or variants of these sequences. Also provided herein are methods for enhancing certain biological properties of antibodies that comprise a non-IgG2 hinge, such as internalization, agonism and antagonism, wherein the method comprises replacing the non-IgG2 hinge of the antibody with an IgG2 hinge.

Abstract: The present disclosure provides a method for enhancing the anti-tumor efficacy of an Fc fusion protein which binds specifically to a target, e.g., a co-inhibitory or co-stimulatory receptor of ligand, on a T cell in a subject afflicted with a cancer or a disease caused by an infectious agent and alters the activity of the immunomodulatory target, thereby potentiating an endogenous immune response against cells of the cancer or the infectious agent, wherein the method comprises selecting, designing or modifying the Fc region of the Fc fusion protein so as to enhance the binding of said Fc region to an activating Fc receptor (FcR). The disclosure also provides an Fc fusion protein produced by said method and its use in treating a subject afflicted with a cancer or a disease caused by an infectious agent.

Abstract: Provided herein are antibodies, or antigen-binding portions thereof, that bind to T-cell immunoglobulin and mucin-domain containing-3 (TIM3) protein. Also provided are uses of these antibodies, or antigen-binding portions thereof, in therapeutic applications, such as treatment of cancer. Further provided are cells that produce the antibodies, or antigen-binding portions thereof, polynucleotides encoding the heavy and/or light chain regions of the antibodies, or antigen-binding portions thereof, and vectors comprising the polynucleotides encoding the heavy and/or light chain regions of the antibodies, or antigen-binding portions thereof.

Abstract: The present invention provides isolated monoclonal antibodies (e.g., humanized and human monoclonal antibodies) that bind to human Inducible T Cell COStimulator (ICOS) and exhibit therapeutically desirable functional properties, e.g., the ability to stimulate human ICOS activity. Nucleic acid molecules encoding the antibodies of the invention, expression vectors, host cells, and methods for expressing the antibodies of the invention are also provided. Immunoconjugates, bispecific molecules, and pharmaceutical compositions comprising the antibodies of the invention are also provided. The antibodies of the invention can be used, for example, as an agonist to stimulate or enhance an immune response in a subject, e.g., antigen-specific T cell responses against a tumor or viral antigen. The antibodies of the invention can also be used in combination with other antibodies (e.g., PD-1, PD-L, and/or CTLA-4 antibodies) to treat, for example, cancer.

Abstract: Provided are methods for clinical treatment of tumors (e.g., advanced solid tumors) using an anti-LAG-3 antibody in combination with an anti-PD-1 antibody.

Abstract: Provided herein are antibodies, or antigen-binding portions thereof, that bind to T-cell immunoglobulin and mucin-domain containing-3 (TIM3) protein. Also provided are uses of these antibodies, or antigen-binding portions thereof, in therapeutic applications, such as treatment of cancer. Further provided are cells that produce the antibodies, or antigen-binding portions thereof, polynucleotides encoding the heavy and/or light chain regions of the antibodies, or antigen-binding portions thereof, and vectors comprising the polynucleotides encoding the heavy and/or light chain regions of the antibodies, or antigen-binding portions thereof.

Abstract: Provided are methods for clinical treatment of hematological malignancies, such as relapsed or refractory chronic lymphocytic leukemia or lymphoma using an anti-LAG-3 antibody. Particular malignancies include, e.g., chronic lymphocytic leulcemia (CLL), Hodgkin lymphoma (HL), or non-Hodgkin lymphoma (NHL).

Abstract: Provided herein are antibodies, or antigen binding portions thereof, that bind to OX40. Also provided are uses of these proteins in therapeutic applications, such as in the treatment of cancer. Further provided are cells that produce the antibodies, polynucleotides encoding the heavy and/or light chain variable region of the antibodies, and vectors comprising the polynucleotides encoding the heavy and/or light chain variable region of the antibodies.

Abstract: Provided herein are antibodies, or antigen-binding portions thereof, that bind to T-cell immunoglobulin and mucin-domain containing-3 (TIM3) protein. Also provided are uses of these antibodies, or antigen-binding portions thereof, in therapeutic applications, such as treatment of cancer. Further provided are cells that produce the antibodies, or antigen-binding portions thereof, polynucleotides encoding the heavy and/or light chain regions of the antibodies, or antigen-binding portions thereof, and vectors comprising the polynucleotides encoding the heavy and/or light chain regions of the antibodies, or antigen-binding portions thereof.