- Design, synthesis, and validation of a novel [11c]promethazine pet probe for imaging abeta using autoradiography
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Promethazine, an antihistamine drug used in the clinical treatment of nausea, has been demonstrated the ability to bind Abeta in a transgenic mouse model of Alzheimer’s disease. However, so far, all of the studies were performed in vitro using extracted tissues. In this work, we report the design and synthesis of a novel [11C]promethazine PET radioligand for future in vivo studies. The [11C]promethazine was isolated by RP-HPLC with radiochemical purity >95% and molar activity of 48 TBq/mmol. The specificity of the probe was demonstrated using human hippocampal tissues via autoradiography.
- Behof, William J.,Boules, Mariam I.,Haynes, Justin R.,Koktysh, Dmitry,Pham, Wellington,Rosenberg, Adam J.,Tantawy, Mohammed N.,Whitmore, Clayton A.
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- AMYLOID-BINDING COMPOUNDS AND METHODS OF USE THEREOF
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A method of screening for amyloid-binding compounds, amyloid-binding compounds, and a method of detecting amyloid-β (Abeta) plaques in a subject are disclosed. The method of screening for amyloid-binding compounds includes combining amyloid, a dye, and at least one test compound to form a sample solution; equilibrating the sample solution; measuring a fluorescence signal of the sample solution; and comparing the measured fluorescence signal of the sample to a control; wherein attenuation of the fluorescence signal, as compared to the control, indicates that one or more of the test compounds bind amyloid. The amyloid-binding compound includes a compound detected by the screening method. The method of detecting amyloid-β (Abeta) plaques in a subject includes administering one or more of the amyloid-binding compounds to the subject, and detecting the compound within the subject.
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Paragraph 0078-0079
(2021/01/25)
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- Coupling body-benzonorbornene oligomer- (by machine translation)
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The invention relates to (among other things) oligomer-phenothiazine conjugates and related compounds. A conjugate of the invention, when administered by any of a number of administration routes, exhibits advantages over un-conjugated phenothiazine compounds.
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