38 results about "Lymphocyte disorder" patented technology

The invention relates to immunotherapeutic compositions and methods for the treatment and prevention of GVHD, humoral rejection, and post-transplantation lymphoproliferative disorder in human subjects using therapeutic antibodies that bind to the human CD19 antigen and that preferably mediate human ADCC. The present invention relates to pharmaceutical compositions comprising human or humanized anti-CD 19 antibodies of the IgG1 or IgG3 human isotype. The present invention relates to pharmaceutical compositions comprising human or humanized anti-CD19 antibodies of the IgG2 or IgG4 human isotype that preferably mediate human ADCC. The present invention also relates to pharmaceutical compositions comprising chimerized anti-CD19 antibodies of the IgG1, IgG2, IgG3, or IgG4 isotype that mediate human ADCC. In preferred embodiments, the present invention relates to pharmaceutical compositions comprising monoclonal human, humanized, or chimeric anti-CD19 antibodies.

The present invention provides chimeric and humanized versions of anti-CD22 mouse monoclonal antibody, HB22.7. The anti-CD22 antibodies of the invention comprise four human or humanized framework regions of the immunoglobulin heavy chain variable region (“VH”) and four human or humanized framework regions of the immunoglobulin light chain variable region (“VK”). The invention further comprises heavy and/or light chain FW regions that contain one or more backmutations in which a human FW residue is exchanged for the corresponding residue present in the parental mouse heavy or light chain. Human or humanized VH framework regions of antibodies of the invention may comprise one or more of the following residues: a valine (V) at position 24 of framework region 1, a glycine (G) at position 49 of framework region 2, and an asparagine (N) at position 73 of framework region 3, numbered according to Kabat. The invention further relates to pharmaceutical compositions, immunotherapeutic compositions, and methods using therapeutic antibodies that bind to the human CD22 antigen and that preferably mediate human ADCC, CDC, and/or apoptosis for: the treatment of B cell diseases and disorders in human subjects, such as, but not limited to, B cell malignancies, for the treatment and prevention of autoimmune disease, and for the treatment and prevention of graft-versus-host disease (GVHD), humoral rejection, and post-transplantation lymphoproliferative disorder in human transplant recipients.

The present invention is based, in part, on the discovery that galectin-1 (Gal1) plays a role in viral-associated PTLD, e.g., EBV-associated PTLD and hypoxia associated angiogenesis disorders. Accordingly, the invention relates to compositions, kits, and methods for diagnosing, prognosing, monitoring, treating and modulating viral-associated PTLD, e.g., EBV-associated PTLD and hypoxia associated angiogenesis disorders.

Acadesine (also known as AICA riboside or AICAR) does not inhibit apoptosis in lymphocytes, as it might be expected, but it induces apoptosis in B cells from patients with B-cell lymphoproliferative disorders such as B-cell chronic lymphocytic leukemia (B-CLL), splenic marginal zone lymphoma (SMZL), mantle cell lymphoma (MCL), follicular lymphoma (FL), lymphoplasmacytic lymphoma (LPL), and Waldenstrom syndrome (WS). T cells are not affected. This makes acadesine and its bioprecursors (eg. its mono-, di- and tri-5′-phosphates) useful as therapeutic agents for B-cell lymphoproliferative disorders in humans. The surprising feature that T cells are virtually not affected means that the side effect (immunosuppression) is minor, what represents a therapeutical advantage of acadesine over cladribine, fludarabine and other nucleosides known in the art.

The disclosure relates to methods to prevent, treat, or slow the progression viral-associated lymphoproliferative disorders, EBV-associated lymphoproliferative disorders, and post-transplant lymphoproliferative disorders. In the methods, a TGF-β antagonist, e.g., an anti-TGF-β antibody is administered to a subject. Methods for treating viral-associated lymphoproliferative disorders and for enhancing T-cell responsiveness to a viral-associated lymphoproliferative disorder by administering a TGF-β antagonist are also described.

The present invention provides for a transgenic animal model that constitutively expresses a protein encoded by the NPM-ALK gene in lymphoid tissue, and exhibits enhanced and accelerated development of a T cell lymphoproliferative disorder or B cell plasma cell tumor, together with the identification of cells transduced with the ALK tyrosine kinase gene or fusion proteins thereof, and methods for using this animal model and cells for screening compounds or treatments for antitumor activity. In preferred embodiments, the animal is a transgenic mouse that expresses a human NPM-ALK gene operably linked to human regulatory sequences, and the cells of the mouse have at least one copy of the NPM-ALK transgene, whereby the mouse constitutively expresses a protein encoded by the NPM-ALK transgene. The animals and cells of the invention are useful in the study of NPM-ALK-dependent lymphomagenesis and plasma cell tumors and in the development of treatments for these conditions.

A transgenic zebrafish animal model for the study of haemopoietic cell differentiation, control, and screening of therapeutic agents.

Anti-Epstein Barr Virus (EBV) antibodies and vaccines are described herein. The antibodies and vaccines can be used to treat and/or reduce the risk of EBV infection and to treat and/or reduce the risk of complications associated with EBV infection, such as infectious mononucleosis, lymphoproliferative disorders, carcinomas, and smooth muscle tumors.

The invention provides an antibody composition and an application thereof in screening of post-transplant lymphoproliferative disorders (PTLD). The antibody composition comprises a first group of antibodies and a second group of antibodies, wherein the first group of antibodies comprises an anti-CD19 antibody, an anti-CD38 antibody, an anti-CD20 antibody, an anti-CD56 antibody and an anti-CD45 antibody; and the second group of antibodies comprises an anti-cytoplasm (cytoplasmatic, c) kappa antibody and an anti-cytoplasm lambda antibody. The antibody composition disclosed by the invention can be used for PTLD screening of patients suffering from fever and lymphadenitis after transplantation, can be used for monitoring PTLD in the early stage, and is high in sensitivity, good in specificity,convenient to operate, simple, convenient, economical and high in cost performance.

Methods of treating malignant ly mphopr oli ferati ve disorders in a patient, comprising administering an effective amount of a GSK-3beta inhibitor, for example 9-ING-41, are provided. Also provided are methods for treating malignant lymphoprohferative disorders comprising administering a (GSK-3beta inhibitor, for example 9-ING-41, in combination with a second or multiple therapeutic agents.

The invention relates to treatment of cancer. More specifically the invention relates to methods of treating cancer selected from the group consisting of squamous cell cancer, lung cancer including small-cell lung cancer, non-small cell lung cancer, adenocarcinoma of the lung, and squamous carcinoma of the lung, cancer of the peritoneum, hepatocellular cancer, gastric or stomach cancer including gastrointestinal cancer, pancreatic cancer, glioblastoma, cervical cancer, ovarian cancer, liver cancer, bladder cancer, hepatoma, breast cancer, colon cancer, colorectal cancer, endometrial or uterine carcinoma, salivary gland carcinoma, kidney or renal cancer, liver cancer, prostate cancer, vulval cancer, thyroid cancer, hepatic carcinoma and various types of head and neck cancer, as well as B-cell lymphoma including low grade/follicular non-Hodgkin's lymphoma (NHL); small lymphocytic (SL) NHL; intermediate grade/follicular NHL; intermediate grade diffuse NHL; high grade immunoblastic NHL; high grade lymphoblastic NHL; high grade small non-cleaved cell NHL; bulky disease NHL; mantle cell lymphoma; AIDS-related lymphoma; and Waldenstrom's Macroglobulinemia; chronic lymphocytic leukemia (CLL); acute lymphoblastic leukemia (ALL); Hairy cell leukemia; chronic myeloblastic leukemia; and post-transplant lymphoproliferative disorder (PTLD), as well as abnormal vascular proliferation associated with phakomatoses, edema such as that associated with brain tumors, Meigs' syndrome, melanoma, mesothelioma, multiple myeloma, fibrosarcoma, osteosarcoma and epidermoid carcinoma, by administering antibodies directed to α2β1 integrin.

The present invention provides chimeric and humanized versions of anti-CD22 mouse monoclonal antibody, HB22.7. The anti-CD22 antibodies of the invention comprise four human or humanized framework regions of the immunoglobulin heavy chain variable region (“VH”) and four human or humanized framework regions of the immunoglobulin light chain variable region (“VK”). The invention further comprises heavy and/or light chain FW regions that contain one or more backmutations in which a human FW residue is exchanged for the corresponding residue present in the parental mouse heavy or light chain. Human or humanized VH framework regions of antibodies of the invention may comprise one or more of the following residues: a valine (V) at position 24 of framework region 1, a glycine (G) at position 49 of framework region 2, and an asparagine (N) at position 73 of framework region 3, numbered according to Kabat. The invention further relates to pharmaceutical compositions, immunotherapeutic compositions, and methods using therapeutic antibodies that bind to the human CD22 antigen and that preferably mediate human ADCC, CDC, and/or apoptosis for: the treatment of B cell diseases and disorders in human subjects, such as, but not limited to, B cell malignancies, for the treatment and prevention of autoimmune disease, and for the treatment and prevention of graft-versus-host disease (GVHD), humoral rejection, and post-transplantation lymphoproliferative disorder in human transplant recipients.

Covalently reactive antigen analogs are disclosed herein. The antigens of the invention may be used to stimulate production of catalytic antibodies specific for predetermined antigens associated with particular medical disorders. The antigen analogs may also be used to permanently inactivate endogenously produced catalytic antibodies produced in certain autoimmune diseases as well as in certain lymphoproliferative disorders.

The invention provides human AML-specific binding compounds that are able to bind a cell surface component of AML cells. Therapeutic uses of binding compounds against AML are also provided.