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Updated: Feb 8, 2026
08:07
Personalized Peptide Arrays for Detection of HLA Alloantibodies in Organ Transplantation
Published on: September 6, 2017
10.6K
Red Cell Alloantibody Screening: Comparative Analysis of Three Different Technologies.
Nicoletta Orlando1, Maria Bianchi1, Caterina Giovanna Valentini1
1Istituto di Ematologia, Università Cattolica del Sacro Cuore - Fondazione Policlinico Universitario A. Gemelli, Rome, Italy.
Summary
This study compared automated analyzers for irregular antibody detection in blood transfusions. The four-cell panel micro-column agglutination technique (CAT) system showed the highest sensitivity and specificity for Type & Screen (T&S) procedures.
Area of Science:
- Transfusion Medicine
- Immunology
- Clinical Diagnostics
Background:
- Detecting irregular antibodies is crucial for safe red blood cell transfusions.
- Type & Screen (T&S) practice relies on accurate antibody screening.
- Evaluating automated analyzers is key for implementing efficient T&S procedures.
Purpose of the Study:
- To compare the performance of three automated analyzers for pre-transfusion antibody screening.
- To assess the suitability of column agglutination technique (CAT) and solid phase red cell adherence assay (SPACA) methods for T&S implementation.
Main Methods:
- Pre-transfusion antibody screening was conducted on 986 patients using three kits: ID-DiaCell I-II-III (micro-CAT), Capture-R Ready Screen-4 (SPACA), and Serascan Diana-4 (micro-CAT).
- Positive and discrepant results were further investigated using corresponding identification panels and all tested systems.
Main Results:
- Out of 986 samples, 98.1% showed concordant negative results, 0.8% concordant positive, and 1.1% were discrepant.
- Alloantibodies (anti-M and anti-Kpª) were identified in two discrepant samples using specific analyzer combinations.
Conclusions:
- The four-cell panel micro-CAT system demonstrated superior sensitivity and specificity.
- This technology shows promise for routine implementation in T&S transfusion strategies, improving transfusion safety.
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