Radioimmunodetection of a transplantable human bladder carcinoma in a nude mouse

Invest Radiol. Nov-Dec 1984;19(6):530-4. doi: 10.1097/00004424-198411000-00011.


The results of an in vitro mixed hemadsorption (MHA) assay predicted the success of in vivo tumor localization using a radioiodinated, monoclonal, IgG1 antibody (A2) with reactivity to the human bladder carcinoma cell line RT4. In vitro, murine monoclonal antibodies A2 and G6, demonstrated reactivity to RT4 with titers of 1/1024 and 1/4 by MHA assay, respectively. In vivo results obtained with RT4 xenografts in athymic nude, Balb/c, mice indicated tumor uptakes of 1.10% dose/gram with A2 and 0.29% dose/gram with G6 at seven days after radiotracer injection. Successful scintigraphic imaging of tumor xenografts was achieved with A2 but not with G6 or radioiodinated mouse serum albumin.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Animals
  • Antibodies, Monoclonal*
  • Humans
  • Iodine Radioisotopes*
  • Isotope Labeling
  • Mice
  • Mice, Inbred BALB C
  • Mice, Nude
  • Neoplasm Transplantation
  • Radionuclide Imaging
  • Transplantation, Heterologous
  • Urinary Bladder Neoplasms / diagnostic imaging*
  • Urinary Bladder Neoplasms / immunology


  • Antibodies, Monoclonal
  • Iodine Radioisotopes