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  • Title: Production and characterization of monoclonal antibodies against 17alpha-hydroxyprogesterone.
    Author: Chong H, Cheah SH, Ragavan M, Johgalingam VT.
    Journal: Hybridoma (Larchmt); 2006 Feb; 25(1):34-40. PubMed ID: 16475880.
    Abstract:
    Hybridomas secreting monoclonal antibodies (MAbs) against 17alpha-hydroxyprogesterone (17OHP) have been generated. These MAbs are highly specific and have an affinity of 7-12 x 10(7) M(1). The hybridomas were obtained by fusion of spleen cells from immunized mice with mouse myeloma P3X63 Ag8.653 cells. The antigen used for immunization was 17OHP conjugated to bovine serum albumin (17OHP:BSA). Fused cells were plated and cloned in 96-well microtiter plates. Wells containing hybridomas were screened simultaneously for specific gamma globulin (IgG) and anti-17OHP activity using an enzyme-linked immunosorbent assay (ELISA)-based method, which is faster than the conventional radioimmunoassay (RIA) screening procedure. Limiting dilution methods were used to obtain single hybridoma clones producing MAb. The stable hybridomas secreting anti-17OHP MAbs were expanded into bioreactors or ascites fluid for large-scale production of the required antibodies. These MAbs will be used in the formulation of a 17OHP assay kit to screen for congenital adrenal hyperplasia (CAH) in local newborn human population.
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