ArticleMolecular imaging and biology2015
Molecular Imaging of PDE10A Knockout Mice with a Novel PET Radiotracer: [(11)C]T-773.
Article in Molecular imaging and biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 12 citations in OpenAlex.
- Translational Development Strategies for TAK-063, a Phosphodiesterase 10A Inhibitor.The international journal of neuropsychopharmacology · 2020Article
- A novel thermoregulatory role for PDE10A in mouse and human adipocytes.EMBO molecular medicine · 2016Article
- Novel Radioligands for Cyclic Nucleotide Phosphodiesterase Imaging with Positron Emission Tomography: An Update on Developments Since 2012.Molecules (Basel, Switzerland) · 2016Review
- Synthesis of Fluorine-Containing Phosphodiesterase 10A (PDE10A) Inhibitors and the In Vivo Evaluation of F-18 Labeled PDE10A PET Tracers in Rodent and Nonhuman Primate.Journal of medicinal chemistry · 2015Article
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Authors and funding
11 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purpose[(11)C]T-773 is a new radioligand for positron emission tomography (PET) targeting the phosphodiesterase 10A enzyme (PDE10A). PDE10A is highly expressed in the striatum by medium spiny neurons, and it has been demonstrated to be involved in the regulation of striatal signaling through the reduction of medium spiny neuronal sensitivity towards glutamatergic excitation. PDE10A is associated with Parkinson's disease and different neuropsychiatric disorders such as Huntington's disease, obsessive-compulsive disorders (OCD) and schizophrenia. Studies have indicated that the inhibition of PDE10A may represent a novel therapeutic approach to the treatment of the aforementioned diseases characterized by the reduced activity of medium spiny neurons. An appropriate PET radioligand for PDE10A would help to facilitate drug development and drug evaluation. PROCEDURES: We have evaluated the [(11)C]T-773 ligand in PDE10A knockout mice (heterozygous [HET] and homozygous [HOM]) as well as in normal control animals (WILD) with PET.
resultsThe regional percent standardized uptake values (%SUV; mean ± SD) in the striatum were 48.2 ± 1.0 (HOM), 63.6 ± 5.3 (HET) and 85.1 ± 6.3 (WILD). Between each animal group the striatal %SUV values were significantly different (p < 0.0001). The striatal BPND values (mean ± SD) were 0.0 ± 0.0 (HOM), 0.14 ± 0.07 (HET) and 0.56 ± 0.15 (WILD). The BPND values were significantly lower in homozygous and heterozygous animals compared to wild type (p < 0.0001).
conclusionsThe novel PDE10A radioligand [(11)C]T-773 shows increased signals with higher levels of PDE10A and acceptable binding in the striatum in control animals compared to knockout mice.
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