Abstract
We have developed methods to radiolabel large molecules, using porphyrins as bifunctional chelating agents for radiometals. The porphyrins are substituted with an N-benzyl group to activate them for radiometallation under mild reaction conditions. Porphyrins that have one functional group for covalent attachment to other molecules cannot cause crosslinking. We have examined the labeling chemistry for antibodies and have developed methods to label smaller biologically active molecules, such as autoantigenic peptides (fragments of the acetylcholine receptor), which are pertinent to myasthenia gravis research. The methods of covalent attachment of these bifunctional chelating agents to large molecules, the radiometallation chemistry, and biological characterization of the radiolabeled compounds will be discussed.
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Mercer-Smith, J.A. et al. (1991). Radiometallating Antibodies and Autoantigenic Peptides. In: Emran, A.M. (eds) New Trends in Radiopharmaceutical Synthesis, Quality Assurance, and Regulatory Control. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-0626-7_15
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DOI: https://doi.org/10.1007/978-1-4899-0626-7_15
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