Monoclonal antibodies against haptens
- PMID: 1303451
Monoclonal antibodies against haptens
Abstract
Four kinds of monoclonal antibodies (moAbs) specific to paraquat, diquat, methamphetamine (MA) and melatonin (MT) were produced. 1-Methyl,1'-hexanoic acid-4,4'-bi-pyridinium, 4-amino-D,L-phenylalanine-diazo-coupled diquat, p-amino-methamphetamine as haptens were synthesized and coupled to bovine serum albumin (BSA) directly or to BSA via glutaraldehyde, and an antigen of MT was prepared by binding MT to BSA with the Mannich reaction. These immunogens of BSA conjugates were immunized i.p. to BALB/C mice. Usable moAbs were established 4 to 6 months after the first immunization. Amounts of paraquat, diquat, MA and MT causing a 50% of inhibition by enzyme-linked immunosorbent assay or radioimmunoassay with one of the most specific moAbs from each hapten were 1.1 ng, 0.67 nmol, 10.0 ng and 1.4 ng, respectively.
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