A MONOCLONAL BASED ELISA FOR HUMAN u-PA QUANTIFICATION

M Camacho, A Fabra, F Carretero, M Borrell, I Millet, M Rutllant
1987 SUPPLEMENTARY ABSTRACTS   unpublished
An ELISA has been developped for quantifiing the anti gen levels of u-PA present in human plasma, tissue and cell extracts, conditioned medium and others biological fluids.The assay was set up using PVC plates coated with rabbit anti u-PA IgG and a monoclonal antibody against human u-PA as second antibody (UKM23 obtained in our laboratory as previously described).Detection was performed with a rabbit anti-mouse IgG conjugated with horseradish peroxidase.By immunoblotting technique the
more » ... nique the monoclonal antibody used UKM23 , recognizes all human molecular weight spe cies and an additional band of 81 KD in human plasma. Also recognizes the u-PA present in conditioned medium from HT-1080 cell line.The detection limit of ELISA assay is 0,1 ng of total u-PA.The first assay in human plasma from healty volun ters, shows u-PA levels of 4,39 ± 0,94 ng/ml.This study was supported by grants from the CAICYTn9 1258/81 and 3628/86.
doi:10.1055/s-0038-1644844 fatcat:yheubhbr3fbrnjqhzsfdhxx7sy