An immunoassay for human D dimer using monoclonal antibodies

Area of Science:

• Immunology
• Biochemistry
• Clinical Chemistry

Background:

• D dimer is a marker for thrombosis and coagulation disorders.
• Existing detection methods may lack specificity or sensitivity for clinical applications.

Purpose of the Study:

• To develop and characterize monoclonal antibodies (MAb) against human D dimer.
• To establish sensitive immunoassays for detecting D dimer and related fibrin derivatives.

Main Methods:

• Generation of hybridomas producing MAb against human D dimer.
• Screening of MAb using solid-phase enzyme immunoassays against D dimer and fibrinogen degradation products.
• Characterization of MAb for antigen capture specificity and assay sensitivity.

Main Results:

• Identified two distinct MAb classes: panspecific (reacting with D dimer and Dcate) and monospecific (reacting only with D dimer).
• Developed immunoassays with a sensitivity of 10 ng/ml for D dimer and crosslinked fibrin derivatives.
• Demonstrated suitability of developed assays for detecting crosslinked derivatives in serum and plasma.

Conclusions:

• Successfully generated specific monoclonal antibodies for human D dimer detection.
• Developed sensitive and specific immunoassays applicable to clinical diagnostics.
• These MAb and assays hold potential for improved detection of thrombotic events.