Description: The human sIL-2R Instant ELISA is an enzyme-linked immunosorbent assay for the quantitative detection of soluble human Interleukin-2 Receptor (CD25). The human sIL-2R Instant ELISA is for research use only. Not for diagnostic or therapeutic procedures.
IL-2 has been described as a factor that promotes the growth and proliferation of human T-cells thus occupying a pivotal role in the generation of the immune response. This proliferation of T lymphocytes is triggered by the interaction of IL-2 with its specific cell surface receptor following T lymphocyte activation. The receptor for IL-2 is composed of at least three distinct polypeptide subunits , the IL-2R-alpha, IL-2R-beta, and the IL-2R-gamma chains giving rise to a 55-65 kD membrane bound protein.
In addition to the de-novo expression of IL-2R by activated peripheral blood T-cells, a released and fully soluble form of IL-2R (sIL-2R) has been detected. It was shown that sIL-2R is present in vivo, at low levels in the sera of healthy persons and at markedly elevated levels in various pathological conditions like neoplastic disorders.
Soluble IL-2R levels are significantly elevated in the sera of patients with adult T-cell leukemia, hairy cell leukemia, lymphocytic leukemia, Hodgkin's and Non-Hodgkin's lymphoma, liver, breast and lung cancer. In patients with systemic lupus erythematosus, rheumatoid arthritis, progressive systemic sclerosis, polymyositis, Kawasaki disease, multiple sclerosis, and Diabetes type I plasma concentrations of sIL-2 receptor are significantly elevated as compared to controls.
Components
Aluminium pouch(es) with a Microwell Plate coated with Monoclonal Antibody (murine) to human sIL-2R, Sample Diluent and HRP-Conjugate (anti-sIL-2R monoclonal (murine) antibody), lyophilized
Aluminium pouch(es) with a human sIL-2R Standard curve (coloured)
Wash Buffer Concentrate 20x (phosphate-buffered saline with 1% Tween 20)
Substrate Solution (tetramethyl-benzidine)
Sample Diluent (Use when an external predilution of the samples is needed)
Stop Solution (1M Phosphoric acid)
Adhesive Plate Covers