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  1. 医学獣医学総合研究科
  1. 医学獣医学総合研究科
  2. 医学獣医学総合研究科学術雑誌掲載論文

Translocator protein imaging with 18F-FEDAC-positron emission tomography in rabbit atherosclerosis and its presence in human coronary vulnerable plaques

http://hdl.handle.net/10458/0002000040
http://hdl.handle.net/10458/0002000040
8e7c4c1d-8061-4248-b8a6-9adc210c495f
名前 / ファイル ライセンス アクション
177_本文.pdf Fulltext (11.9 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2023-09-04
タイトル
タイトル Translocator protein imaging with 18F-FEDAC-positron emission tomography in rabbit atherosclerosis and its presence in human coronary vulnerable plaques
言語 en
言語
言語 eng
キーワード
言語 en
キーワード Imaging
キーワード
言語 en
キーワード Nuclear cardiology and PET
キーワード
言語 en
キーワード Acute coronary syndrome
キーワード
言語 en
キーワード Atherosclerosis
資源タイプ
資源タイプ journal article
アクセス権
アクセス権 open access
著者 前川, 和也

× 前川, 和也

WEKO 34339
e-Rad_Researcher 30754171

en Maekawa, Kazunari
University of Miyazaki

ja 前川, 和也
宮崎大学

ja-Kana マエカワ, カズナリ

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Tsuji, Atsushi B.

× Tsuji, Atsushi B.

WEKO 34341

en Tsuji, Atsushi B.

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山下, 篤

× 山下, 篤

WEKO 9416
e-Rad_Researcher 90372797

ja 山下, 篤
宮崎大学

ja-Kana ヤマシタ, アツシ

en Yamashita, Atsushi
University of Miyazaki

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Sugyo, Aya

× Sugyo, Aya

en Sugyo, Aya

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Katoh, Chietsugu

× Katoh, Chietsugu

en Katoh, Chietsugu

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Tang, Minghui

× Tang, Minghui

en Tang, Minghui

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Nishihira, Kensaku

× Nishihira, Kensaku

en Nishihira, Kensaku

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Shibata, Yoshisato

× Shibata, Yoshisato

en Shibata, Yoshisato

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越本, 知大

× 越本, 知大

WEKO 2792
e-Rad_Researcher 70295210

ja 越本, 知大
宮崎大学

ja-Kana コシモト, チヒロ

en Koshimoto, Chihiro
University of Miyazaki

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Zhang, Ming-Rong

× Zhang, Ming-Rong

en Zhang, Ming-Rong

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Nishii, Ryuichi

× Nishii, Ryuichi

en Nishii, Ryuichi

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Yoshinaga, Keiichiro

× Yoshinaga, Keiichiro

en Yoshinaga, Keiichiro

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浅田, 祐士郎

× 浅田, 祐士郎

WEKO 7742
e-Rad_Researcher 70202588

en Asada, Yujiro

ja 浅田, 祐士郎

ja-Kana アサダ, ユウジロウ

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抄録
内容記述タイプ Abstract
内容記述 Background and aims
This study aimed to investigate whether N-benzyl-N-methyl-2-[7,8-dihydro-7-(2-[18F]fluoroethyl)-8-oxo-2-phenyl-9H-purin-9-yl]acetamide (18F-FEDAC), a probe for translocator protein (TSPO), can visualize atherosclerotic lesions in rabbits and whether TSPO is localized in human coronary plaques.

Methods
18F-FEDAC-PET of a rabbit model of atherosclerosis induced by a 0.5% cholesterol diet and balloon injury of the left carotid artery (n = 7) was performed eight weeks after the injury. The autoradiography intensity of 18F-FEDAC in carotid artery tissue sections was measured, and TSPO expression was evaluated immunohistochemically. TSPO expression was examined in human coronary arteries obtained from autopsy cases (n = 16), and in human coronary plaques (n = 12) aspirated from patients with acute myocardial infarction (AMI).

Results
18F-FEDAC-PET visualized the atherosclerotic lesions in rabbits as high-uptake areas, and the standard uptake value was higher in injured arteries (0.574 ± 0.24) than in uninjured arteries (0.277 ± 0.13, p < 0.05) or myocardium (0.189 ± 0.07, p < 0.05). Immunostaining showed more macrophages and more TSPO expression in atherosclerotic lesions than in uninjured arteries. TSPO was localized in macrophages, and arterial autoradiography intensity was positively correlated with macrophage concentration (r = 0.64) and TSPO (r = 0.67). TSPO expression in human coronary arteries was higher in AMI cases than in non-cardiac death, or in the vulnerable plaques than in early or stable lesions, respectively. TSPO was localized in macrophages in all aspirated coronary plaques with thrombi.

Conclusions
18F-FEDAC-PET can visualize atherosclerotic lesions, and TSPO-expression may be a marker of high-risk coronary plaques.
言語 en
内容記述
内容記述タイプ Other
内容記述 Citation:
Kazunari Maekawa, Atsushi B. Tsuji, Atsushi Yamashita, Aya Sugyo, Chietsugu Katoh, Minghui Tang, Kensaku Nishihira, Yoshisato Shibata, Chihiro Koshimoto, Ming-Rong Zhang, Ryuichi Nishii, Keiichiro Yoshinaga, Yujiro Asada, Translocator protein imaging with 18F-FEDAC-positron emission tomography in rabbit atherosclerosis and its presence in human coronary vulnerable plaques, Atherosclerosis, Volume 337, 2021, Pages 7-17, ISSN 0021-9150, https://doi.org/10.1016/j.atherosclerosis.2021.10.003.
(https://www.sciencedirect.com/science/article/pii/S0021915021013873)
言語 en
書誌情報 en : Atherosclerosis

巻 337, p. 7-17, 発行日 2021-11
出版者
出版者 Elsevier
言語 en
ISSN
収録物識別子タイプ ISSN
収録物識別子 00219150
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1016/j.atherosclerosis.2021.10.003
権利
言語 en
権利情報 © 2021 The Authors. Published by Elsevier B.V.
著者版フラグ
出版タイプ VoR
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