Development of a bispecific monoclonal antibody for use in molecular hybridisation

J Auriol1, J L Guesdon, J C Mazié

  • 1Laboratoire de Prédéveloppement des Sondes, Institut Pasteur, Paris, France.

A mouse hybrid hybridoma (tetradoma) was prepared by fusing hybridomas producing monoclonal antibody to acetyl-aminofluorene with hybridomas producing antibody against calf intestine alkaline phosphatase. The tetradoma line established secreted immunoglobulin manifesting parental and bispecific binding characteristics. Bispecific monoclonal antibody was purified and used for a one-step immunodetection assay of non-radioactive DNA and RNA probes. The immunoassay developed was able to detect 5 pg DNA within 2 h and gave low background noise.