Blood grouping with monoclonal antibodies

Area of Science:

• Immunology
• Hematology
• Biotechnology

Background:

• Automated blood grouping systems are crucial for transfusion medicine.
• Monoclonal antibodies offer potential for improved blood typing accuracy and efficiency.
• Conventional serological methods require validation with new reagent technologies.

Purpose of the Study:

• To evaluate the performance of monoclonal anti-A and anti-B antibodies in automated blood grouping.
• To assess the utility of a monoclonal anti-N reagent in microplate assays.
• To compare monoclonal antibody results with conventional human antisera and lectins.

Main Methods:

• Utilized the Technicon BG15 automated blood grouping machine for ABO typing of over 32,000 donors.
• Employed a monoclonal anti-N reagent in microplate assays for N typing of 10,000 donors.
• Performed parallel testing with conventional human antisera, Vicia graminea anti-N lectin, and rabbit anti-N.

Main Results:

• Monoclonal anti-A and anti-B antibodies demonstrated complete correlation with conventional reagents in automated typing.
• The monoclonal anti-N reagent showed complete correlation with Vicia graminea anti-N lectin and rabbit anti-N in microplate assays.
• Preliminary data from the Groupamatic 2000 using a different anti-A were also presented.

Conclusions:

• Monoclonal antibodies are reliable and accurate reagents for automated blood grouping.
• These findings support the clinical utility of monoclonal antibodies in transfusion services.
• The study validates the use of monoclonal reagents as effective alternatives to conventional methods.