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PET imaging of colony-stimulating factor 1 receptor: A head-to-head comparison of a novel radioligand, 11C-GW2580, and 11C-CPPC, in mouse models of acute and chronic neuroinflammation and a rhesus monkey
https://repo.qst.go.jp/records/82553
https://repo.qst.go.jp/records/825533a106c34-8a71-49fc-af6d-35c3d6325844
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-03-30 | |||||
タイトル | ||||||
タイトル | PET imaging of colony-stimulating factor 1 receptor: A head-to-head comparison of a novel radioligand, 11C-GW2580, and 11C-CPPC, in mouse models of acute and chronic neuroinflammation and a rhesus monkey | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Zhou, Xiaoyun
× Zhou, Xiaoyun× Ji, Bin× Seki, Chie× Nagai, Yuji× Minamimoto, Takafumi× Fujinaga, Masayuki× Ming-Rong, Zhang× Saito, Takashi× C Saido, Takaomi× Suhara, Tetsuya× Kimura, Yasuyuki× Higuchi, Makoto× Xiaoyun, Zhou× Ji, Bin× Chie, Seki× Yuji, Nagai× Takafumi, Minamimoto× Masayuki, Fujinaga× Zhang, Ming-Rong× Tetsuya, Suhara× Yasuyuki, Kimura× Makoto, Higuchi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Colony-stimulating factor 1 receptor (CSF1R) is a specific biomarker for microglia. In this study, we developed a novel PET radioligand for CSF1R, C-GW2580, and compared it to a reported CSF1R tracer, C-CPPC, in mouse models of acute and chronic neuroinflammation and a rhesus monkey. Dynamic C-GW2580- and C-CPPC-PET images were quantified by reference tissue-based models and standardized uptake value ratio. Both tracers exhibited increased uptake in the lesioned striata of lipopolysaccharide-injected mice and in the forebrains of -knock-in mice, spatially in agreement with an increased 18-kDa translocator protein radioligand retention. Moreover, C-GW2580 captured changes in CSF1R availability more sensitively than C-CPPC, with a larger dynamic range and a smaller inter-individual variability, in these model animals. PET imaging of CSF1R in a rhesus monkey displayed moderate-to-high tracer retention in the brain at baseline. Homologous blocker (i. e. unlabeled tracer) treatment reduced the uptake of C-GW2580 by ∼30% in all examined brain regions except for centrum semi-ovale white matter, but did not affect the retention of C-CPPC. In summary, our results demonstrated that C-GW2580-PET captured inflammatory microgliosis in the mouse brain with higher sensitivity than a reported radioligand, and displayed saturable binding in the monkey brain, potentially providing an imaging-based quantitative biomarker for reactive microgliosis. | |||||
書誌情報 |
Journal of cerebral blood flow and metabolism 巻 41, 号 9, p. 2410-2422, 発行日 2021-03 |
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出版者 | ||||||
出版者 | SAGE Publications | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0271-678X | |||||
PubMed番号 | ||||||
識別子タイプ | PMID | |||||
関連識別子 | 33757319 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1177/0271678X211004146 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://journals.sagepub.com/doi/10.1177/0271678X211004146 |