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Preparation of polymer-based magnetic resonance imaging contrast agent to visualize therapeutic angiogenesis.
https://repo.qst.go.jp/records/47262
https://repo.qst.go.jp/records/47262508f1f80-8d27-4fcd-9f5e-584a6b0d88cf
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2015-08-19 | |||||
| タイトル | ||||||
| タイトル | Preparation of polymer-based magnetic resonance imaging contrast agent to visualize therapeutic angiogenesis. | |||||
| 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 |
Jo, Jun-ichiro
× Jo, Jun-ichiro× Nakahara, Teppei× Aoki, Ichio× Saga, Tsuneo× Tabata, Yasuhiko× et.al× 城 潤一郎× 中原 鉄平× 青木 伊知男× 佐賀 恒夫 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The objective of this study was to design and prepare a new contrast agent of magnetic resonance (MR) imaging for the evaluation of therapeutic angiogenesis. Diethylenetriaminepentaacetic acid (DTPA) residue of a chelator was chemically introduced to dextran with a molecular weight of 74,000 (dextran-DTPA). Cyclic peptide containing an arginine-glycine-aspartic acid (RGD) sequence (cyclic RGD) with an inherent affinity for the a(v)B(3) integrin was then introduced to dextran-DTPA (Cyclic RGD-dextran-DTPA). Gd(3+) was added to cyclic RGD-dextran-DTPA to prepare a dextran-based MR contrast agent (Cyclic RGD-dextran-DTPA-Gd). Cyclic RGD-dextran-DTPA-Gd had affinity for cells expressing the a(v)B(3) integrin and showed a higher longitudinal relaxivity compared with DTPA-Gd of an MR contrast agent clinically used. Right femoral, external iliac, and deep femoral and circumflex arteries and veins were surgically ligated to prepare a mouse model of hindlimb ischemia. A laser Doppler analysis and histological evaluation confirmed that hindlimb ischemia healed naturally and was accompanied by angiogenesis, while a(v)B(3) integrin was expressed in the ischemic-angiogenic region without any treatment. Mice at 7 days after vascular ligation were used as an angiogenesis model. When intravenously injected into mice with hindlimb ischemia, cyclic RGD-dextran-DTPA accumulated in the ischemic-angiogenic region and showed the MR ability to detect the ischemic-angiogenic region. It is concluded that cyclic RGD-dextran-DTPA-Gd is a promising material for evaluation of therapeutic angiogenesis. | |||||
| 書誌情報 |
Tissue Engineering. Part A 巻 19, 号 1/2, p. 30-39, 発行日 2012-09 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1937-3341 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1089/ten.tea.2012.0131 | |||||
