WEKO3
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Model rats were\ninduced by carbon tetrachloride (CCl4), and liver fibrosis was assessed. Positron emission tomography\n(PET) with N-benzyl-N-methyl-2-[7,8-dihydro-7-(2-[18F]fluoroethyl)-8-oxo-2-phenyl-9H-purin-9-yl]\n-acetamide ([18F]FEDAC), a radioprobe specific for TSPO, was used for noninvasive visualisation\nin vivo. PET scanning, immunohistochemical staining, ex vivo autoradiography, and quantitative\nreverse-transcription polymerase chain reaction were performed to elucidate the relationships\namong radioactivity uptake, TSPO levels, and cellular sources enriching TSPO expression in damaged\nlivers. PET showed that uptake of radioactivity in livers increased significantly after 2, 4, 6, and 8\nweeks of CCl4 treatment. Immunohistochemistry demonstrated that TSPO was mainly expressed in\nmacrophages and hepatic stellate cells (HSCs). TSPO-expressing macrophages and HSCs increased\nwith the progression of liver fibrosis. 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Utility of Translocator Protein (18 kDa) as a Molecular Imaging Biomarker to Monitor the Progression of Liver Fibrosis
https://repo.qst.go.jp/records/47425
https://repo.qst.go.jp/records/474259353d9b6-880e-4c60-8ce4-d2eaf845205f
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-05-19 | |||||
タイトル | ||||||
タイトル | Utility of Translocator Protein (18 kDa) as a Molecular Imaging Biomarker to Monitor the Progression of Liver Fibrosis | |||||
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 |
Hatori, Akiko
× Hatori, Akiko× Yui, Joji× Xie, Lin× Kumata, Katsushi× Yamasaki, Tomoteru× Fujinaga, Masayuki× Wakizaka, Hidekatsu× Ogawa, Masanao× Nengaki, Nobuki× Kawamura, Kazunori× Wang, Feng× Zhang, Ming-Rong× 羽鳥 晶子× 由井 譲二× 謝 琳× 熊田 勝志× 山崎 友照× 藤永 雅之× 脇坂 秀克× 小川 政直× 念垣 信樹× 河村 和紀× 張 明栄 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Hepatic fibrosis is the wound healing response to chronic hepatic injury caused by various factors. In this study, we aimed to evaluate the utility of translocator protein (18 kDa) (TSPO) as a molecular imaging biomarker for monitoring the progression of hepatic fibrosis to cirrhosis. Model rats were induced by carbon tetrachloride (CCl4), and liver fibrosis was assessed. Positron emission tomography (PET) with N-benzyl-N-methyl-2-[7,8-dihydro-7-(2-[18F]fluoroethyl)-8-oxo-2-phenyl-9H-purin-9-yl] -acetamide ([18F]FEDAC), a radioprobe specific for TSPO, was used for noninvasive visualisation in vivo. PET scanning, immunohistochemical staining, ex vivo autoradiography, and quantitative reverse-transcription polymerase chain reaction were performed to elucidate the relationships among radioactivity uptake, TSPO levels, and cellular sources enriching TSPO expression in damaged livers. PET showed that uptake of radioactivity in livers increased significantly after 2, 4, 6, and 8 weeks of CCl4 treatment. Immunohistochemistry demonstrated that TSPO was mainly expressed in macrophages and hepatic stellate cells (HSCs). TSPO-expressing macrophages and HSCs increased with the progression of liver fibrosis. Interestingly, the distribution of radioactivity from [18F]FEDAC was well correlated with TSPO expression, and TSPO mRNA levels increased with the severity of liver damage. TSPO was a useful molecular imaging biomarker and could be used to track the progression of hepatic fibrosis to cirrhosis with PET. |
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書誌情報 |
Scientific Reports (Online Only URL:http://www.nature.com/srep/index.html) 巻 5, p. 17327, 発行日 2015-12 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2045-2322 | |||||
PubMed番号 | ||||||
識別子タイプ | PMID | |||||
関連識別子 | 26612465 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | DOI: 10.1038/srep17327 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | www.nature.com/scientificreports | |||||
関連名称 | www.nature.com/scientificreports |