Pre-targeting amyloid-β with antibodies for potential molecular imaging of Alzheimer's disease
Chemical communications (Cambridge, England)(2023)
Abstract
With the aim of developing the concept of pretargeted click chemistry for the diagnosis of Alzheimer's disease two antibodies specific for amyloid-β were modified to incorporate -cyclooctene functional groups. Two bis(thiosemicarbazone) compounds with pendant 1,2,4,5-tetrazine functional groups were prepared and radiolabelled with positron emitting copper-64. The new copper-64 complexes rapidly react with the -cyclooctene functionalized antibodies in a bioorthogonal click reaction and cross the blood-brain barrier in mice.
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Key words
alzheimer disease,antibodies,potential molecular imaging,pre-targeting
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