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Synthesis, physicochemical and biological evaluation of tacrine derivative labeled with technetium-99m and gallium-68 as a prospective diagnostic tool for early diagnosis of Alzheimer's disease

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dc.abstract.enDesign, physicochemical and biological studies of novel radioconjugates for the early diagnosis of Alzheimer's disease, based on the newly synthesized tacrine derivatives were performed. Novel tacrine analogues were labeled with technetium-99m and gallium-68. For all obtained radioconjugates ([99mTc]Tc-Hynic-(tricine)2NH(CH2)ntacrine and [68Ga]Ga-DOTA-NH(CH2)9tacrine, where n = 2-9 denotes the number of methylene groups CH2) the studies of physicochemical properties (lipophilicity, stability in the presence of an excess of standard amino acids cysteine or histidine, human serum and in cerebrospinal fluid) were performed. For two selected radioconjugates [99mTc]Tc-Hynic-(tricine)2NH(CH2)9Tac and [68Ga]Ga-DOTA-NH(CH2)9tacrine (characterized with the highest lipophilicity values) the biological tests (inhibition of cholinesterases action, molecular docking and biodistribution studies) have been performed. All novel radioconjugates showed high stability in biological solutions used. Both selected radioconjugates proved to be good inhibitors of cholinesterases and be able to cross the blood-brain barrier. Radioconjugates [99mTc]Tc-Hynic-(tricine)2NH(CH2)9tacrine and [68Ga]Ga-DOTA-NH(CH2)9tacrine fulfil the conditions for application in nuclear medicine. Radiopharmaceutical [68Ga]Ga-DOTA-NH(CH2)9tacrine, due to increased accuracy and improved sensitivity in PET imaging, may be better potential diagnostic tool for early diagnosis of Alzheimer's disease.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorKilian, Krzysztof
dc.contributor.authorMikiciuk-Olasik, Elżbieta
dc.contributor.authorBajda, Marek
dc.contributor.authorMasłowska, Katarzyna
dc.contributor.authorCzarnecka, Kamila
dc.contributor.authorHalik, Paweł
dc.contributor.authorRogulski, Zbigniew
dc.contributor.authorGniazdowska, Ewa
dc.contributor.authorKoźmiński, Przemysław
dc.contributor.authorCheda, Łukasz
dc.contributor.authorSZYMAŃSKI, Paweł
dc.date.accessioned2024-01-26T09:27:04Z
dc.date.available2024-01-26T09:27:04Z
dc.date.issued2019
dc.description.financeNie dotyczy
dc.description.volume91
dc.identifier.doi10.1016/J.BIOORG.2019.103136
dc.identifier.issn0045-2068
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/121324
dc.identifier.weblinkhttps://publicum.umed.lodz.pl/info/article/AMLb90edcc0a1ff42fcaf2ce89f22adfc4e/
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofBioorganic Chemistry
dc.relation.pages1-12
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enAlzheimer’s disease
dc.subject.enGallium-68
dc.subject.enPET/CT
dc.subject.enRadiopharmaceuticals
dc.subject.enSPECT/CT
dc.subject.enTacrine
dc.subject.enTechnetium-99m
dc.titleSynthesis, physicochemical and biological evaluation of tacrine derivative labeled with technetium-99m and gallium-68 as a prospective diagnostic tool for early diagnosis of Alzheimer's disease
dc.typeJournalArticle
dspace.entity.typePublication