ALBAclone Anti-A,B (Blood Grouping Reagent)

ALBAclone Anti-A,B is a specialized blood grouping reagent used in clinical laboratory settings to determine the ABO blood type of a patient or donor. This monoclonal antibody reagent is designed to provide high-specificity identification of the A and B antigens found on the surface of human red blood cells.

Product Overview

The reagent contains a blend of monoclonal antibodies that react with both A and B antigens. By utilizing monoclonal technology, ALBAclone ensures consistent performance, high avidity, and a reduced risk of lot-to-lot variability compared to traditional polyclonal reagents. This product is an essential component in blood banking, supporting safe blood transfusions and diagnostic accuracy.

Key Features and Benefits

• Monoclonal Source: Produced using specific hybridoma cell lines, ensuring batch-to-batch consistency and high purity.
• Enhanced Sensitivity: Engineered to detect weak expressions of A or B antigens, providing a reliable safety net in ABO typing.
• Standardized Performance: Designed to meet the stringent requirements of regulatory bodies for blood banking reagents.
• Ease of Use: Optimized for standard tube or microplate testing methodologies commonly found in hospital and reference laboratories.

Intended Use

Test Principle

The principle of the test relies on direct agglutination. When the ALBAclone Anti-A,B reagent is mixed with red blood cells that express the A antigen, the B antigen, or both, the monoclonal antibodies bind to their respective epitopes. This cross-linking of antibodies between red blood cells results in visible agglutination (clumping), which indicates a positive result. Absence of agglutination indicates the absence of the corresponding antigens.

Clinical Significance

Accurate ABO grouping is the most critical step in transfusion medicine. An incorrect blood type determination can lead to acute hemolytic transfusion reactions, which can be fatal. ALBAclone Anti-A,B serves as a vital tool in the "double-check" process. By reacting with both antigens, it provides an additional layer of verification, ensuring that the results derived from separate Anti-A and Anti-B tests are consistent and correct.

Storage and Stability

To maintain the integrity of the monoclonal antibodies, ALBAclone Anti-A,B must be stored at the temperature specified by the manufacturer, typically between 2C and 8C. Users should ensure that the reagent is not frozen and is protected from light during storage. The reagent should never be used beyond the expiration date printed on the vial, as degraded antibodies may yield false-negative results.

Best Practices for Laboratory Use

• Always perform a quality control check with known positive and negative cells at the start of each shift or according to laboratory protocol.
• Ensure that the red blood cell suspension is prepared to the correct concentration (typically 2-5%) in isotonic saline.
• Observe the reaction immediately after centrifugation or according to the incubation times specified in the package insert.
• Document all results clearly, noting any discrepancies between the forward (cell) typing and the reverse (serum) typing.

Conclusion

ALBAclone Anti-A,B is a foundational reagent that contributes to the safety and reliability of modern blood banking. Through its use of monoclonal technology, it offers laboratory professionals the precision required for high-stakes transfusion testing. Adherence to proper storage and testing protocols remains essential to fully leverage the performance capabilities of this diagnostic tool.