193 results about "Lymphoid Tumor" patented technology

Recombinant immunotoxins are fusion proteins composed of the Fv domains of antibodies fused to bacterial or plant toxins. RFB4 (Fv)-PE38 is an immunotoxin that targets CD22 expressed on B cells and B cell malignancies. The present invention provides antibodies and antibody fragments that have improved ability to bind the CD22 antigen of B cells and B cell malignancies compared to RFB4. Immunotoxins made with the antibodies and antibody fragments of the invention have improved cytotoxicity to CD22-expressing cancer cells. Compositions that incorporate these antibodies into chimeric immunotoxin molecules that can be used in medicaments and methods for inhibiting the growth and proliferation of leukemia and lymphoma cells.

The present invention relates to antibodies or fragments thereof that specifically bind FcγRIIB, particularly human FcγRIIB, with greater affinity than said antibodies or fragments thereof bind FcγRIIA, particularly human FcγRIIA. The present invention also encompasses the use of an anti-FcγRIIB antibody or an antigen-binding fragment thereof, as a single agent therapy for the treatment, prevention, management, or amelioration of a cancer, preferably a B-cell malignancy, particularly, B-cell chronic lymphocytic leukemia or non-Hodgkin's lymphoma, an autoimmune disorder, an inflammatory disorder, an IgE-mediated allergic disorder, or one or more symptoms thereof. The present invention also encompasses the use of an anti-FcγRIIB antibody or an antigen-binding fragment thereof, in combination with other cancer therapies. The present invention provides pharmaceutical compositions comprising an anti-FcγRIIB antibody or an antigen-binding fragment thereof, in amounts effective to prevent, treat, manage, or ameliorate a cancer, such as a B-cell malignancy, an autoimmune disorder, an inflammatory disorder, an IgE-mediated allergic disorder, or one or more symptoms thereof. The invention further provides methods of enhancing the therapeutic effect of therapeutic antibodies by administering the antibodies of the invention to enhance the effector function of the therapeutic antibodies. The invention also provides methods of enhancing efficacy of a vaccine composition by administering the antibodies of the invention with a vaccine composition.

The present application discloses the preparation and use of attenuated tumor-targeted bacteria vectors for the delivery of one or more primary effector molecule(s) to the site of a solid tumor. The primary effector molecule(s) of the invention is used in the methods of the invention to treat a solid tumor cancer such as a carcinoma, melanoma, lymphoma, or sarcoma. The invention relates to the surprising discovery that effector molecules, which may be toxic when administered systemically to a host, can be delivered locally to tumors by attenuated tumor-targeted bacteria with reduced toxicity to the host. The application also discloses to the delivery of one or more optional effector molecule(s) (termed secondary effector molecules) which may be delivered by the attenuated tumor-targeted bacteria in conjunction with the primary effector molecule(s).

In accordance with the invention, novel gene deletions and translocations involving chromosome 2 resulting in fusion proteins combining part of Anaplastic Lymphoma Kinase (ALK) kinase with part of a secondary protein have now been identified in human solid tumors, e.g. non-small cell lung carcinoma (NSCLC). Secondary proteins include Echinoderm Microtubule-Associated Protein-Like 4 (EML-4) and TRK-Fusion Gene (TFG). The EML4-ALK fusion protein, which retains ALK tyrosine kinase activity, was confirmed to drive the proliferation and survival of NSCLC characterized by this mutation. The invention therefore provides, in part, isolated polynucleotides and vectors encoding the disclosed mutant ALK kinase polypeptides, probes for detecting it, isolated mutant polypeptides, recombinant polypeptides, and reagents for detecting the fusion and truncated polypeptides. The disclosed identification of this new fusion protein enables new methods for determining the presence of these mutant ALK kinase polypeptides in a biological sample, methods for screening for compounds that inhibit the proteins, and methods for inhibiting the progression of a cancer characterized by the mutant polynucleotides or polypeptides, which are also provided by the invention.

Methods of expanding tumor infiltrating lymphocytes (TILs), including peripheral blood lymphocytes (PBLs) and marrow infiltrating lymphocytes (MILs), from blood and / or bone marrow of patients with hematological malignancies, such as liquid tumors, including lymphomas and leukemias, and genetic modifications of expanded TILs, PBLs, and MILs to incorporate chimeric antigen receptors, genetically modified T-cell receptors, and other genetic modifications, and uses of such expanded and / or modified TILs, PBLs, and MILs in the treatment of diseases such as cancers and hematological malignancies are disclosed herein.

Compounds useful for inducing apoptosis in proliferative cells, particularly cancer cells, including but not limited to prostate cancer, leukemia, non-smalll cell lung cancer, colon cancer, CNS cancer, melanoma, ovarian cancer, renal cancer, bladder cancer, lymphoma, and breast cancer. These compounds are particularly useful in the treatment of androgen-independent cancers, including hormone-refractory prostate cancer. Further provided are methods of treating cancer in a subject in need of such treatment using the compounds of the present invention. Further provided are methods for using the compounds of the present invention to treat, inhibit, or delay the onset of cancer in a subject. Further provided are methods of inducing apoptosis in rapidly proliferating cells, particularly, though not necessarily cancer cells, using the compounds of the present invention.

The present invention features an isolated, intact virus associated with human lymphoma, and originally isolated from a mantle cell lymphoma, referred to herein as a mantle histiocyte retrovirus (MHRV). The invention also features compositions and methods for detecting MHRV, as well as methods and compositions for propagating MHRV in vitro, screening for anti-MHRV agents, and generation of attenuated MHRV strains.

The present invention relates to a compositions for and methods for cancer treatment, for example, hematopoietic cancers (e.g. B-cell Lymphoma). In other aspects, the invention provides methods for treating particular types of hematopoietic cancers, such as B-cell lymphoma, using a combination of one or more of the disclosed compounds and, for example, 26S proteasome inhibitors, such as, for example, Bortezomib. In another aspect the present invention relates to autoimmune treatment with the disclosed compounds. In another aspect, this invention relates to methods for identifying compounds, for example, compounds of the BH3 mimic class, that have unique in vitro properties that predict in vivo efficacy against B-cell lymphoma tumors and other cancers as well as autoimmune disease.

The invention discloses a chimeric antigen receptor CD19-CD8H&TM-41BB-CD3zeta-mbIL15 and use thereof. The chimeric antigen receptor is formed by series connection of a heavy chain and light chain variable region (CD19scFV) of a mouse anti-human CD19 monoclonal antibody (with a cloning number being FMC63), a human CD8alpha hinge region, a transmembrane region, a human 41BB intracellular region, a human CD3zeta intracellular region and an IL15+IL15Ralphla structure. The chimeric antigen receptor is used for modifying a human T-lymphocyte, and the modified T-cell (CAR-T cell) can be used for expressing CD19 positive acute / chronic lymphocytic leukemia and treating lymphoma. The prepared CD19 mbIL15 CAR-T cell has a strong killing function on specific tumor cells.

A method for the treatment of cancer by administering a therapeutically effective amount of a cyclin-dependent kinase (CDK) inhibitor with a therapeutically effective amount of a B cell chronic lymphocytic leukemia / lymphoma 2 inhibitor (“B Cell CLL / Lymphoma 2”, or “BCL-2”). Administration of the CDK inhibitor and BCL-2 inhibitor can be simultaneous, successive or separate.

The present invention discloses process of producing anti-human CD20 monoclonal antibody in animal mammary gland bioreactor. The process of producing anti-human CD20 monoclonal antibody in animal mammary gland bioreactor is superior to available process of producing in mammal cell line, and has higher expression amount, chimeric antibody with higher capacity of combining with human B lymphoma cell surface antigen CD20 and obviously lowered production cost.