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Search for antibodies for immunoenzymatic assay of human lutropin
A Szewczuk1, M Kuropatwa, I Kochanowska
1Biochemical Laboratory, Polish Academy of Sciences, Wrocław.
Five peptides corresponding to human lutropin (hLH) subunit fragments were synthesized by a solid phase method and their physicochemical characteristics are presented. Antibodies induced in rabbits with 3 peptides of beta hLH fragments coupled to thyrotropin did not bind hLH and human chorionic gonadotropin (hCG). Also 2 synthetic peptides of alpha hLH fragments did not react with rabbit anti-hLH, anti-hCG and anti-alpha hCG antibodies. Using 2 monoclonal anti-alpha hCG and anti-beta hLH antibodies a sensitive sandwich ELISA technique was elaborated. Using this technique stability of hLH was investigated. The ELISA was also applied for assays of urine hLH in normal and ovulation days.
Five peptides corresponding to human lutropin (hLH) subunit fragments were synthesized by a solid phase method and their physicochemical characteristics are presented. Antibodies induced in rabbits with 3 peptides of beta hLH fragments coupled to thyrotropin did not bind hLH and human chorionic gonadotropin (hCG). Also 2 synthetic peptides of alpha hLH fragments did not react with rabbit anti-hLH, anti-hCG and anti-alpha hCG antibodies. Using 2 monoclonal anti-alpha hCG and anti-beta hLH antibodies a sensitive sandwich ELISA technique was elaborated. Using this technique stability of hLH was investigated. The ELISA was also applied for assays of urine hLH in normal and ovulation days.