13 results about "Lymphocyte activation" patented technology

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. Combination therapy, in which an anti-LAG-3 antibody is co-administered with at least one additional immunostimulatory antibody, is also provided.

The present application relates to scaffolds for treating solid tumor cells and evasion variants. Implantable stents are described that treat solid tumors and evasion variants and provide effective vaccination against cancer recurrence. The scaffold includes a genetically reprogrammed lymphocyte and a lymphocyte activating portion.

The present disclosure provides compositions and methods for the delivery of immune cells to treat un-resectable or non-resected tumor cells and tumor relapse. The compositions comprise (i) a structure comprising an injectable polymer or scaffold comprising pores; (ii) lymphocytes disposed within the structure, (iii) at least one lymphocyte-adhesion moiety associated with the structure; and (iv) at least one lymphocyte-activating moiety associated with the structure, and optionally an immune stimulant.

The disclosure provides a method of treating a human subject afflicted with lung cancer with a lymphocyte activation gene-3 (LAG-3) antagonist. In some aspects, the method comprises combination of the LAG-3 antagonist with an additional therapeutic agent (e.g., a programmed death-1 pathway inhibitor) and / or anti-cancer therapy (e.g., chemotherapy such as a platinum doublet chemotherapy).

The present disclosure provides compositions and methods for the delivery of immune cells to treat un-resectable or non-resected tumor cells and tumor relapse. The compositions comprise (i) a structure comprising an injectable polymer or scaffold comprising pores; (ii) lymphocytes disposed within the structure, (iii) at least one lymphocyte-adhesion moiety associated with the structure; and (iv) at least one lymphocyte-activating moiety associated with the structure, and optionally an immune stimulant.

This invention discloses a targeted adjuvant influenza vaccine composition for atrial fibrillation patients with atrial fibrosis. The vaccine antigen components are selected from the surface antigens of currently prevalent influenza virus strains, such as hemagglutinin (HA) and neuraminidase (NA). High-purity influenza virus antigens are prepared through cell culture or recombinant DNA technology. For example, influenza virus is cultured using Madin-Darby canine kidney (MDCK) cells, and purified through centrifugation, filtration, and chromatography to obtain high-purity HA and NA antigens. After injection into the human body, the influenza virus antigens (HA and NA) are taken up and processed by antigen-presenting cells (such as macrophages and dendritic cells). The antigen-presenting cells present antigen peptides to T lymphocytes and B lymphocytes, activating a specific immune response. B lymphocytes differentiate into plasma cells with the help of T lymphocytes, producing specific antibodies that recognize and bind to the influenza virus, preventing it from infecting host cells and thus preventing influenza virus infection.

Compositions and methods for preventing or treating autoimmune diseases are provided. The composition comprises a binding partner configured to bring LAG-3 and a T cell receptor closer to each other than in the absence of the binding partner, thereby providing an immunosuppressive effect on activated T cells.

This application provides a method for treating cancer in an individual, the method comprising administering a myeloid cell activator or myeloid cell activation therapy (such as a TLR agonist or STING agonist) and a TNFα inhibitor to the individual. In some cases, the method further comprises administering an SHP-1 inhibitor and / or a tyrosine kinase inhibitor to the individual, and optionally further comprising administering a lymphocyte activator, such as a cytokine (such as IL-2) and / or an immune checkpoint inhibitor (such as anti-PD-1).

The present disclosure provides antibodies, or antigen binding domains thereof, specific for CD228, as well as fusion proteins specific for both CD137 and CD228, which can be used to co-stimulate lymphocyte activation in a CD228 target dependent manner. Such antibodies, antigen binding domains or fusion proteins may be used in many pharmaceutical applications, for example, as anticancer agents and / or immunomodulators. The disclosure also relates to methods of making the antibodies, antigen binding domains, or fusion proteins described herein, and compositions comprising such antibodies, antigen binding domains, or fusion proteins. The disclosure further relates to nucleic acid molecules encoding such antibodies, antigen binding domains or fusion proteins. In addition, the application discloses therapeutic and / or diagnostic uses of such antibodies, antigen binding domains or fusion proteins.

The present invention provides isolated monoclonal antibodies that specifically bind LAG-3, and have optimized functional properties compared to previously described anti-LAG-3 antibodies, such as antibody 25F7 (US 2011 / 0150891 A1). These properties include reduced deamidation sites, while still retaining high affinity binding to human LAG-3, and physical (I.e., thermal and chemical) stability. 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, as well as immunoconjugates, bispecific molecules and pharmaceutical compositions comprising the antibodies. The present invention 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. Combination therapy, in which the antibodies are co-administered with at least one additional immunostimulatory antibody, is also provided.

The present disclosure relates to systems and methods for immune therapy. For example, a method can be used to enhance the proliferation of chimeric antigen receptor (CAR) T cells in a subject, The method comprises administering to the subject an effective amount of a pharmaceutical composition comprising one or more lymphocyte activation agents and one or more recombinant viral particles comprising a polynucleotide encoding a CAR, wherein the proliferation of CAR T cells in the subject is greater than in a subject administered with the one or more recombinant viral particles but without the lymphocyte activation agent.

The present disclosure provides isolated human monoclonal antibodies and antigen-binding fragments thereof that bind to human LAG-3, particularly antibodies and antigen-binding antibody fragments 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 and antigen-binding fragments of the invention as well as compositions and immunoconjugates of the antibodies and antigen-binding antibody fragments of the invention are also provided. This disclosure also provides for the use of the antibodies and antigen-binding antibody fragments of the invention in therapy.

The present application provides a method of treating a cancer in an individual that involves administering to the individual a lymphocyte activating agent (e.g., a T cell activating agent) and an agent that inhibits SHP-1 signaling (e.g., TPI-1, PTP-1). In some cases, the method optionally further involves administering a TNFα inhibitor and / or a pro-inflammatory agent (such as TLR or STING agonists).