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Application of POLARIC (TM) fluorophores in an in vivo tumor model

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Title: Application of POLARIC (TM) fluorophores in an in vivo tumor model
Authors: Maishi, Nako Browse this author →KAKEN DB
Kawamoto, Taisuke Browse this author
Ohga, Noritaka Browse this author →KAKEN DB
Yamada, Koji Browse this author →KAKEN DB
Akiyama, Kosuke Browse this author →KAKEN DB
Yamamoto, Kazuyuki Browse this author
Osawa, Takahiro Browse this author
Hida, Yasuhiro Browse this author →KAKEN DB
Hida, Kyoko Browse this author →KAKEN DB
Keywords: tumor
fluorescent probes
in vivo imaging
Issue Date: Oct-2013
Publisher: Spandidos Publications
Journal Title: Oncology reports
Volume: 30
Issue: 4
Start Page: 1695
End Page: 1700
Publisher DOI: 10.3892/or.2013.2620
PMID: 23877868
Abstract: Fluorescent and luminescent tools are commonly used to study the dynamics of cancer progression and metastases in real-time. Fluorophores have become essential tools to study biological events. However, few can sustain fluorescence long enough during long-term studies. In the present study, we focused on a series of new amphiphilic fluorophores known as POLARIC (TM), which emit strong fluorescence in lipid bilayers and can be readily modified using the Suzuki-Miyaura cross-coupling reaction. Appropriate chemical modifications of substituent groups can improve target-site specificity, reduce cytotoxicity and prolong emission. Therefore, in contrast to conventional fluorescent probes, these fluorophores show promise for long-term monitoring of biological processes. In the present study, we conducted long-term observations of tumor growth and metastasis using a POLARIC derivative as a novel fluorescent probe. For this purpose, we studied the metastatic melanoma cell line A375-SM, which proliferates at a high rate. We compared the characteristics of the POLARIC probe with the commercially available fluorescent dye PKH26 and fluorescent protein mRFP1. A375-SM cells were labeled with these fluorescent probes and orthotopically implanted into nude mice. The fluorescence emitted by POLARIC was detected more than five weeks after implantation without causing detectable harmful effects on tumor growth. By contrast, fluorescence of cells labeled with PKH26 could not be detected at this same time. Furthermore, POLARIC-, but not PKH26-labeled cells, were also detected in lung metastases. These results indicate that labeling cells with POLARIC fluorophores can significantly extend the time course of in vivo studies on tumor cell growth.
Type: article
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 樋田 京子

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