摘要:
Cell-free or released T cell antigen receptors, immunoassays which allow the detection of the released T cell antigen receptor in cell culture supernatants, cell lysates, and biological fluids, as well as diagnostic and therapeutic compositions and methods for monitoring and treating certain diseases or disorders which elicit or involve a T cell response are described. The released T cell antigen receptors described herein differ from the cell membrane bound antigen receptors and appear to exist in a variety of forms, some of which may be complexed with other T cell determinants such as the T3 antigen. Despite the size heterogeneity of the released T cell antigen receptors or receptor/complexes, these may be reliably identified using anti-receptor antibodies, including, but not limited to, anti-major framework, anti-minor frarmework and anti-clonotypic antibodies which define particular epitopes of the released T cell receptor or receptor/complex. The immunoassays described herein may be used to test for the presence of the released receptor or receptor/complex in biological samples and may be used to diagnose or monitor patients with disorders or diseases that elicit or involve T cell response who exhibit elevated serum level of the receptor or receptor/complex. In addition, the cell free T cell antigen receptors themselves may be used diagnostically and/or therapeutically for diseases or conditions that are not easily addressed using immunoglobulins.
摘要:
Methods are provided for detecting and determining the amount in a sample of an antigenic determinant from an antigen receptor derived and released from a T cell or NK cell. Methods are also provided for detecting and determining the amount in a sample of an antigenic determinant from a complex of at least a portion of an antigen receptor derived from and released from a T cell or NK cell and a protein complex. These methods form the bases for methods of diagnosing and monitoring in a subject a disease characterized by the presence or an amount different from a normal subject of one of these antigenic determinants in a body fluid. A soluble antigen receptor or complex thereof derived from a T cell or a NK cell but free of such T cell or NK cell is also provided.
摘要:
The present invention is directed to the measurement of soluble T cell growth factor receptors, soluble T cell differentiation antigens, or related soluble molecules or fragments thereof, and the use of such measurements in the diagnosis, staging, and therapy of diseases and disorders. Specific embodiments involve the diagnosis and monitoring of therapy using absolute values of such soluble molecules. Further embodiments involve detecting a change in the levels of such soluble molecules, in the diagnosis and therapy of diseases and disorders. In specific embodiments, measurements of interleukin-2 receptor levels can be made to detect lung cancer, or to stage squamous cell lung carcinoma. In other embodiments, detection of increases in both soluble IL2R and creatinine in the body fluid of a transplant patient can be used to differentially diagnose renal allograft rejection from infection. The invention is also directed to methods for measurement of soluble CD4 antigens, which measurements can be used, in a specific embodiment, to diagnose a state of immune activation, to diagnose rheumatoid arthritis, to monitor therapeutic efficacy (e.g. of AIDS treatments), or to stage adult T cell leukemia in a patient. In another aspect, the invention relates to the detection, staging, and monitoring of therapy of diseases and disorders by measuring a plurality of soluble T cell markers.
摘要:
The present invention relates to monoclonal antibodies which recognize defined regions of the T-cell receptor (TCR). In a specific embodiment, the invention provides monoclonal antibodies which are reactive with a constant region of the alpha chain of the TCR. In particular embodiments, the invention relates to two monoclonal antibodies, termed .alpha.F1 and .alpha.F2, which react with two different epitopes on the framework region of the .alpha. monomer of the TCR molecule. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the beta chain of the TCR. In particular, the invention provides two monoclonal antibodies, termed W112 and 2D1, which react with .beta. chain variable regions V.beta.5.3 and V.beta.8.1, respectively. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the delta chain of the TCR. In particular, the invention provides monoclonal antibody .delta.TCS1, isotype IgG2a. The monoclonal antibodies of the invention have value in diagnosis and therapy and are useful tools for study of the immune system.
摘要:
The present invention relates to monoclonal antibodies which recognize defined regions of the T-cell receptor (TCR). In a specific embodiment, the invention provides monoclonal antibodies which are reactive with a constant region of the alpha chain of the TCR. In particular embodiments, the invention relates to two monoclonal antibodies, termed .alpha.F1 and .alpha.F2, which react with two different epitopes on the framework region of the .alpha. monomer of the TCR molecule. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the beta chain of the TCR. In particular, the invention provides two monoclonal antibodies, termed W112 and 2D1, which react with .beta. chain variable regions V.beta.5.3 and V.beta.8.1, respectively. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the delta chain of the TCR. In particular, the invention provides monoclonal antibody .delta.TCS1, isotype IgG2a. The monoclonal antibodies of the invention have value in diagnosis and therapy and are useful tools for study of the immune system.
摘要:
The present invention relates to monoclonal antibodies which recognize defined regions of the T-cell receptor (TCR). In a specific embodiment, the invention provides monoclonal antibodies which are reactive with a constant region of the alpha chain of the TCR. In particular embodiments, the invention relates to two monoclonal antibodies, termed .alpha.F1 and .alpha.F2, which react with two different epitopes on the framework region of the .alpha. monomer of the TCR molecule. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the beta chain of the TCR. In particular, the invention provides two monoclonal antibodies, termed W112 and 2D1, which react with .beta. chain variable regions V.beta.5.3 and V.beta.8.1, respectively. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the delta chain of the TCR. In particular, the invention provides monoclonal antibody .delta.TCS1, isotype IgG2a. The monoclonal antibodies of the invention have value in diagnosis and therapy and are useful tools for study of the immune system.
摘要:
The present invention relates to monoclonal antibodies which recognize defined regions of the T-cell receptor (TCR). In a specific embodiment, the invention provides monoclonal antibodies which are reactive with a constant region of the alpha chain of the TCR. In particular embodiments, the invention relates to two monoclonal antibodies, termed &agr;F1 and &agr;F2, which react with two different epitopes on the framework region of the &agr; monomer of the TCR molecule. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the beta chain of the TCR. In particular, the invention provides two monoclonal antibodies, termed W112 and 2D1, which react with &bgr; chain variable regions V&bgr;5.3 and V&bgr;8.1, respectively. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the delta chain of the TCR. In particular, the invention provides monoclonal antibody &dgr;TCS1, isotype IgG2a. The monoclonal antibodies of the invention have value in diagnosis and therapy and are useful tools for study of the immune system.
摘要:
The present invention relates to monoclonal antibodies which recognize defined regions of the T-cell receptor (TCR). In a specific embodiment, the invention provides monoclonal antibodies which are reactive with a constant region of the alpha chain of the TCR. In particular embodiments, the invention relates to two monoclonal antibodies, termed .alpha.F1 and .alpha.F2, which react with two different epitopes on the framework region of the .alpha. monomer of the TCR molecule. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the beta chain of the TCR. In particular, the invention provides two monoclonal antibodies, termed W112 and 2D1, which react with .beta. chain variable regions V.beta.5.3 and V.beta.8.1, respectively. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the delta chain of the TCR. In particular, the invention provides monoclonal antibody .delta.TCS1, isotype IgG2a. The monoclonal antibodies of the invention have value in diagnosis and therapy and are useful tools for study of the immune system.
摘要:
The invention is directed to monoclonal antibodies reactive with a member of the V.beta.3 family variable region of the beta chain of the TCR. More particularly, the invention provides for detection of the V.beta.3.1 subfamily. In a specific embodiment the invention provides for detection of V.beta.3.1, without cross-reacting with other V.beta.3 family variable regions. In a specific embodiment, the monoclonal antibodies of the invention do not react with V.beta.3.2. In particular, the invention provides monoclonal antibodies, termed 5E4 and 8F10, which react with the variable region of a member of the V.beta.3 family. In various embodiments of the invention, these antibodies, or fragments or derivatives thereof, can be used to bind with a member of the V.beta.3 family TCR variable region amino acid sequences, either as part of an intact TCR or peptide, or T cell-surface molecule, or a fragment thereof. The monoclonal antibodies are useful for diagnosis and therapy of autoimmune disease, in particular rheumatoid arthritis.
摘要:
Hybrid cell line for production of monoclonal antibody to an antigen found on normal human monocytes and granulocytes. The hybrid is formed by fusing splenocytes from immunized BALB/cJ mice with P3X63Ag8U1 myeloma cells. Diagnostic and therapeutic uses of the monoclonal antibody are also disclosed.