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Preparation of alkyne-labeled 2-nitroimidazoles for identification of tumor hypoxia by Raman spectroscopy.

Abstract：

:Hypoxia is a characteristic feature of solid tumors. Herein, we have developed novel hypoxia-sensitive probes (IM-ACs) for Raman spectroscopic analysis, consisting of nitroimidazole as a hypoxia-targeting unit and acetylene group as the signal-emitting unit. Among IM-ACs synthesized in this study, IM-AC possessing a diacetylene group (IM-AC 3), showed suitable properties as a hypoxia indicator. When administered to A549 cells, we observed a strong signal of IM-AC 3 around 2200cm-1 in the Raman spectra from hypoxic cells. Ex vivo experiments suggest that IM-AC 3 remained in hypoxic tumor tissue and emitted a strong signal.

journal_name

Bioorg Med Chem Lett

journal_title

Bioorganic & medicinal chemistry letters

authors

Kurihara R,Ikemura Y,Tanabe K

doi

10.1016/j.bmcl.2016.09.024

subject

Has Abstract

pub_date

2016-10-15 00:00:00

pages

4892-4894

issue

20

eissn

0960-894X

issn

1464-3405

pii

S0960-894X(16)30964-7

journal_volume

26

pub_type

杂志文章

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