Abstract
Using the cyclic DTPA derivatisation procedure developed by Hnatowich, conditions have been optimised for labelling three tumour-associated monoclonal antibodies with 90Y. High labelling efficiencies (>95%) at modest specific activities (1 mCi/mg) could be routinely obtained. Radiochemical stability of the radiolabelled preparations in vitro was good, but radiolysis resulted in early losses of antibody immunoreactivity.
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Abbreviations
- PBS:
-
Phosphate buffered saline
- BSA:
-
Bovine Serum Albumin
- HSA:
-
Human Serum Albumin
- ITLC:
-
Instant thin layer chromatography
- HPLC:
-
High pressure liquid chromatography
- CAE:
-
Cellulose acetate electrophoresis
- ELISA:
-
Enzyme linked immunosorbent assay
- RIA:
-
Radioimmune assay
- DTPA:
-
Diethylenetriaminepentaacetic acid
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Mather, S.J., Tolley, D.M. & White, G.W. Labelling monoclonal antibodies with Yttrium-90. Eur J Nucl Med 15, 307–312 (1989). https://doi.org/10.1007/BF00435471
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DOI: https://doi.org/10.1007/BF00435471