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Passive and electro-assisted delivery of hydrogel nanoparticles in solid tumors, visualized by optical and magnetic resonance imaging in vivo
https://repo.qst.go.jp/records/47463
https://repo.qst.go.jp/records/474630de05ee3-8337-4d0c-8c4e-3728b1749864
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2016-08-10 | |||||
| タイトル | ||||||
| タイトル | Passive and electro-assisted delivery of hydrogel nanoparticles in solid tumors, visualized by optical and magnetic resonance imaging in vivo | |||||
| 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 |
Bakalova-Zheleva, Rumiana
× Bakalova-Zheleva, Rumiana× Pancheva, Nikolova-Lefterova Biliana× Murayama, Shuhei× Atanasova, Severina× Zhelev, Zhivko× Aoki, Ichio× Kato, Masaru× Tsoneva, Iana× Saga, Tsuneo× バカロバ ルミアナ× ニコロヴァレフタロヴ＆＃６５５３３； ．咼螢▲福＆＃６５５３３；× 村山 周平× アタナソヴァ セヴァリナ× Ｚｈｅｌｅｖ Ｚｈｉｖｋｏ× 青木 伊知男× 加藤 大× 佐賀 恒夫 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The present study describes a development of nanohydrogel, loaded with QD705 and manganese (QD705@Nanogel & QD705@Mn@Nanogel), and its passive and electro-assisted delivery in solid tumours, visualized by fluorescence imaging and magnetic resonance imaging (MRI) on colon-cancer grafted mice as a model. QD705@Nanogel was delivered passively predominantly into the tumor, which was visualized in vivo and ex vivo using fluorescent imaging. The fluorescence intensity increased gradually within 30 min after injection, reached a plateau between 30 min and 2 hours, and decreased gradually to the baseline within 24 hours. The fluorescence intensity in the tumor area was about 2.5 times higher than the background fluorescence. A very weak fluorescent signal was detected in the liver area, but not in the areas of kidneys or bladder. This result was in contrast with our previous study, indicating that FITC@Mn@Nanogel did not enter into the tumor and was detected rapidly in the kidney and bladder after i.v. injection [J. Mater. Chem. B 2013, 1, 4932-4938]. We found that the embedding of a hard material (as QD) in nanohydrogel changes the physical properties of the soft material (decreases the size and negative charge and changes the shape) and alters its pharmacodynamics. Electroporation facilitated the delivery of the nanohydrogel in the tumor tissue, visualized by fluorescent imaging and MRI. Strong signal intensity was recorded in the tumor area shortly after the combined treatment (QD@Mn@Nanogel + electroporation) and it was observed even 48 hours after the electroporation. The data demonstrate more effective penetration of the nanoparticles in the tumor due to the increased permeability of blood vessels at the electroporated area. There was no rupture of blood vessels after electroporation and there were no artifacts in the images due to a bleeding. |
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| 書誌情報 |
Analytical and Bioanalytical Chemistry 巻 408, 号 3, p. 905-914, 発行日 2015-12 |
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| 出版者 | ||||||
| 出版者 | Springer-Verlag | |||||
