Characterization of two monoclonal antibodies to human apolipoprotein A-I that also bind to rabbit apolipoprotein A-I. Application to ELISA evaluation of rabbit serum apo A-I

Clinica Chimica Acta; International Journal of Clinical Chemistry
A LeroyJ C Fruchart

Abstract

Two monoclonal antibodies against human apolipoprotein A-I were characterized to recognize rabbit apo A-I. By immunoblotting we determined that while neither antibody reacted with the other rabbit apolipoproteins they both recognized all rabbit apo A-I isoforms. Cotitration revealed that each antibody bound to different apo A-I epitopes. Then we developed a noncompetitive enzyme-linked immunosorbent assay (ELISA) to measure the concentration of total apolipoprotein A-I in rabbit serum. The ELISA curves of the different lipoprotein class and serum showed the similarity of the expression of the apo A-I epitopes recognized in each of them and in serum. This assay, as opposed to other techniques, offers several advantages such as sensitivity, specificity, and simplicity and avoids the use of radioisotope.

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Citations

Oct 1, 1993·Journal of Protein Chemistry·Z W GuC Y Yang
Jun 15, 1992·Clinica Chimica Acta; International Journal of Clinical Chemistry·A GaverL Wong

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