| Item type |
文献 / Documents(1) |
| 公開日 |
2018-11-12 |
| アクセス権 |
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アクセス権 |
open access |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 出版社版DOI |
|
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|
関連識別子 |
https://doi.org/10.1038/s41598-017-06857-x |
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関連名称 |
10.1038/s41598-017-06857-x |
| 出版タイプ |
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|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| タイトル |
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|
タイトル |
Molecular imaging of aberrant crypt foci in the human colon targeting glutathione S-transferase P1-1 |
| 著者 |
六車, 直樹
岡本, 耕一
中川, 忠彦
サンノミヤ, カツタカ
フジモト, ショウタ
三井, 康裕
木村, 哲夫
宮本, 弘志
東島, 潤
島田, 光生
ホリノ, ヨウコ
マツモト, シンヤ
ハナオカ, ケンジロウ
ナガノ, テツオ
シブタニ, マコト
高山, 哲治
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| 抄録 |
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内容記述 |
Aberrant crypt foci (ACF), the earliest precursor lesion of colorectal cancers (CRCs), are a good surrogate marker for CRC risk stratification and chemoprevention. However, the conventional ACF detection method with dye-spraying by magnifying colonoscopy is labor- and skill-intensive. We sought to identify rat and human ACF using a fluorescent imaging technique that targets a molecule specific for ACF. We found that glutathione S-transferase (GST) P1-1 was overexpressed in ACF tissues in a screening experiment. We then synthesized the fluorogenic probe, DNAT-Me, which is fluorescently quenched but is activated by GSTP1-1. A CRC cell line incubated with DNAT-Me showed strong fluorescence in the cytosol. Fluorescence intensities correlated significantly with GST activities in cancer cell lines. When we sprayed DNAT-Me onto colorectal mucosa excised from azoxymethane-treated rats and surgically resected from CRC patients, ACF with strong fluorescent signals were clearly observed. The ACF number determined by postoperative DNAT-Me imaging was almost identical to that determined by preoperative methylene blue staining. The signal-to-noise ratio for ACF in DNAT-Me images was significantly higher than that in methylene blue staining. Thus, we sensitively visualized ACF on rat and human colorectal mucosa by using a GST-activated fluorogenic probe without dye-spraying and magnifying colonoscopy. |
| 書誌情報 |
en : Scientific Reports
巻 7,
p. 6536,
発行日 2017-07-26
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| 収録物ID |
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|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
20452322 |
| 出版者 |
|
|
出版者 |
Springer Nature |
| 備考 |
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|
値 |
Supplementary information : srep_7_6536_s1.pdf |
| 権利情報 |
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|
権利情報 |
© The Author(s) 2017 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
| EID |
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|
識別子 |
332060 |
| 言語 |
|
|
言語 |
eng |
srep_7_6536.pdf (6.18 MB)
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