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Enzyme-linked immunosorbent assay models

The use of independent methods, other than IFIC, for quantitative demonstration of proteins is particularly important. Both enzyme-linked immunosorbent assay (ELISA) and Western blot may be employed to confirm the amount of protein in a cell/tissue model, and in the protein-embedding bar code model under both comparable fresh and FFPE samples for accurate... [Pg.148]

The model immunoassay is the enzyme-linked immunosorbent assay (ELISA) in which a non-specific capture antibody is bound to a surface, such as a multi-well plate or small tube [13]. In the basic form of ELISA, a second antibody tagged with an enzyme interacts specifically with the analyte. The enzyme assay produces a colored product that is read with a spectrophotometer. There are many variations on the basic immunoassay format that serve to increase sensitivity, specificity, linear range, and speed. Many commercial instruments have been developed to take advantage of various technologies for reporter molecules. The immunoassay may be coupled to an electronic sensor and transducer, such as a surface acoustical wave (SAW) sensor. Electrochemiluminescence (ECL) is a method in which the detector antibody is tagged with a ruthenium-containing chelate [13-15]. When the tag is... [Pg.777]

Currently there are few methods for specific investigation of immunotoxic effects, which are regarded as sufficiently validated for routine use (EC 2003). The plaque forming assay or the equivalent using the ELISA method (Enzyme-linked Immunosorbent Assay) are recommended to identify altered T-cell-dependent humoral responses. Of particular value for hazard assessment are the so-called host resistance models, in which the clinical relevance of immunotoxicity can be evaluated. Other methods may also be of value to provide information on the mode of immunotoxic action, e.g., mitogen stimulation tests and leucocyte phenotyping. However, further work is needed on standardization and validation of these test methods. [Pg.139]

Kontrawelert, R, Francis, D.L., Brooks, RM., Ghosh, R. (1989) Application of an enzyme-linked immunosorbent-inhibition assay to quantitate the release of KS peptides into fluids of the rat subcutaneous air pouch model and the effects of chondroprotective drugs on the release process. Rheumatology International, 9 (2), 77-83. [Pg.70]


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