cross-reaction


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cross-reaction

[′krȯs rē′ak·shən]
(immunology)
Reaction between an antibody and a closely related, but not complementary, antigen.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
To the best of our knowledge this is the first study evaluating cross-reaction in the Platelia Aspergillus EIA test using piperacillin-tazobactam batches commercialized in Brazil.
Furthermore, due to the specificity of real-time PCR, false positive due to cross-reaction from heterologous flaviviruses in serological assays would no longer be a problem.
The immunoblot approach was 100% sensitive and proved to be useful in the identification of asymptomatic carriers as well as to establish a differential diagnosis between CL and other diseases frequently reported as responsible for cross-reactions. Asymptomatic patients and those with positive serology deserve some attention because they may either develop the illness or immunity without presenting clinical signs.
Cross-reaction with luteinizing hormone R-core is responsible for the age-dependent increase of immunoreactive [beta]-core fragment of human chorionic gonadotropin in women with nonmalignant conditions.
However, attempts to definitively ascribe this increase to PSA were not successful either by immunohistochemistry with PSA monoclonal antibodies (1, 2) or by amplification of PSA by reverse transcription-PCR (RTPCR) (3), suggesting cross-reaction with a PSA-like protein.
Immunological cross-reaction with PSA was <0.01% in weight units at PSA-T concentrations of 0.08-165 [micro]g/L.
To avoid any visible cross-reaction in the dipstick assay, we optimized LAg concentration, test serum dilution, and control serum dilution.
Cross-reaction of immune sera from patients with rickettsial diseases.
Cross-reaction with the assay antibody is one of the mechanisms of NSAID interference (3).
Signal ratios generated by wild-type probe reacted with PCR products from the control construct were all close to unity (i.e., there was no cross-reaction), as were those from wild-type PCR products reacted with the control sequence probe.