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Translocator protein (18kDa), a potential molecular imaging biomarker for non-invasively distinguishing non-alcoholic fatty liver disease
https://repo.qst.go.jp/records/46460
https://repo.qst.go.jp/records/4646087130ea4-94b7-4372-b894-d34db35fd609
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2012-12-04 | |||||
| タイトル | ||||||
| タイトル | Translocator protein (18kDa), a potential molecular imaging biomarker for non-invasively distinguishing non-alcoholic fatty liver disease | |||||
| 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 |
Xie, Lin
× Xie, Lin× Yui, Joji× Hatori, Akiko× Yamasaki, Tomoteru× Kumata, Katsushi× Wakizaka, Hidekatsu× Yoshida, Yuichirou× Fujinaga, Masayuki× Kawamura, Kazunori× Zhang, Ming-Rong× 謝 琳× 由井 譲二× 羽鳥 晶子× 山崎 友照× 熊田 勝志× 脇坂 秀克× 吉田 勇一郎× 藤永 雅之× 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 | Background & Aims Mitochondrial dysfunction is responsible for liver damage and disease progression in non-alcoholic fatty liver disease (NAFLD). Translocator protein (18 kDa) (TSPO), a mitochondrial transmembrane protein, plays important roles in modulating mitochondrial function. This study explored whether TSPO can be used as an imaging biomarker of non-invasive diagnosis and staging of NAFLD, monitored using positron emission tomography (PET) with a TSPO radioligand [18F]FEDAC. \nMethods PET with [18F]FEDAC, non-enhanced computerized tomography (CT), autoradiography, histopathology, and gene analysis were performed to evaluate and quantify TSPO levels and NAFLD progression in methionine and choline-deficient diet-fed mice. Correlations were analyzed between uptake ratio of radioactivity and NAFLD activity score (NAS) in the liver. \nResults Uptake of [18F]FEDAC obviously increased with disease progression from simple steatosis to non-alcoholic steatohepatitis (NASH) (p <0.01). A close correlation was identified between [18F]FEDAC uptake ratio and NAS in the liver (Pearson's r = 0.922, p = 0.000). Specific binding of [18F]FEDAC to TSPO in the NAFLD livers was assessed in competition studies with the unlabelled TSPO-selective ligand PK11195. Autoradiography and histopathology confirmed the PET imaging results. Further, the mRNA levels of the functional macromolecular signaling complex composed of TSPO were obviously higher compared to controls. \nConclusions TSPO expression increases in NAFLD and closely correlates with NAFLD progression. TSPO as a specific molecular imaging biomarker may open a novel avenue for non-invasive, reliable, and quantitative diagnosis and staging of NAFLD. |
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| 書誌情報 |
Journal of Hepatology 巻 57, 号 5, p. 1076-1082, 発行日 2012-07 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0168-8278 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | org/10.1016/j.jhep.2012.07.002, how to cite or link using do | |||||
