Establishment of Radioimmunoassay system for Prostate Specific antigen as a diagnostic tool for prostatic diseases

Document Type : Original Article

Authors

1 1Department of labeled compounds , Hot labs Centre, Atomic Energy Authority, Egypt.

2 2Chemistry Department, Faculty of Science, Zagazig University, Egypt.

Abstract

 




 Background: Prostate specific antigen (PSA), a glycoprotein secreted exclusively from epithelial cell lining the prostate gland. The level of PSA in human serum may play a critical role in diagnosis of prostatic diseases. Objectives: This study was carried out to set up Radioimmunoassay system for PSA estimation in human serum as a diagnostic tool for Prostatic diseases. Methods: locally produced highly purified PSA was used for preparation of radioimmunoassay components; PSA Polyclonal antibody, radioiodinated PSA Tracer and PSA standards. Optimization and Formulation have been achieved, then validity of this technique confirmed by measuring the quality control parameters; Sensitivity, accuracy, crossreactivity, intra and inter assay precision and method comparison. Results: we found that; Optimized and Characterized Radioimmunoassay system is the most Sensitive, specific, precise and accurate tool for estimation of prostate specific antigen level in human serum. Conclusion: Estimation of PSA with locally produced radioimmunoassay system can be used as a diagnostic tool for diagnosis of prostatic diseases. 

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