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In Vivo PET Imaging of the α4β2 Nicotinic Acetylcholine Receptor As a Marker for Brain Inflammation after Cerebral Ischemia
https://repo.qst.go.jp/records/47270
https://repo.qst.go.jp/records/47270442948ab-4046-4100-96d7-6e913994e99a
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2015-09-15 | |||||
| タイトル | ||||||
| タイトル | In Vivo PET Imaging of the α4β2 Nicotinic Acetylcholine Receptor As a Marker for Brain Inflammation after Cerebral Ischemia | |||||
| 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 |
Martin, Abraham
× Martin, Abraham× Szcaupak, Boguslaw× Gomez-Vallejo, Vanessa× Domercq, Maria× Cano, Ainhoa× Padro, Daniel× Munoz, Clara× Higuchi, Makoto× Matute, Carlos× Llop, Jordi× 樋口 真人 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | PET imaging of nicotinic acetylcholine receptors (nAChRs) could become an effective tool for the diagnosis and therapy evaluation of neurologic diseases. Despite this, the role of nAChRs 4 2 receptors after brain diseases such as cerebral ischemia and its involvement in inflammatory reaction is still largely unknown. To investigate this, we performed in parallel in vivo magnetic resonance imaging (MRI) and positron emission tomography (PET) with 2[ 18F]-fluoro-A85380 and [ 11C]PK11195 at 1, 3, 7, 14, 21, and 28 d after middle cerebral artery occlusion (MCAO) in rats. In the ischemic territory, PET with 2[ 18F]-fluoro-A85380 and [ 11C]PK11195 showed a progressive binding increase from days 3–7, followed by a progressive decrease from days 14 –28 after cerebral ischemia onset. Ex vivo immunohistochemistry for the nicotinic 4 2 receptor and the mitochondrial translocator protein (18 kDa) (TSPO) confirmed the PET findings and demonstrated the overexpression of 4 2 receptors in both microglia/macrophages and astrocytes from days 7–28 after experimental ischemic stroke. Likewise, the role played by 4 2 receptors on neuroinflammation was supported by the increase of [ 11C]PK11195 binding in ischemic rats treated with the 4 2 antagonist dihydro- -erythroidine hydrobromide (DHBE) at day 7 after MCAO. Finally, both functional and behavioral testing showed major impaired outcome at day 1 after ischemia onset, followed by a recovery of the sensorimotor function and dexterity from days 21–28 after experimental stroke. Together, these results suggest that the nicotinic 4 2 receptor could have a key role in the inflammatory reaction underlying cerebral ischemia in rats. |
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| 書誌情報 |
Journal of Neuroscience 巻 35, 号 15, p. 5998-6009, 発行日 2015-04 |
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| 出版者 | ||||||
| 出版者 | Society for Neuroscience | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0270-6474 | |||||
| PubMed番号 | ||||||
| 識別子タイプ | PMID | |||||
| 関連識別子 | 25878273 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1523/JNEUROSCI.3670-14.2015 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.jneurosci.org/content/35/15/5998.short | |||||
| 関連名称 | http://www.jneurosci.org/content/35/15/5998.short | |||||
