Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Regular Articles
In Cellullo and ex Vivo Availability of a Yellowish-Green-Light-Controllable NO Releaser
Naoya IedaYuji HottaMitsuyasu KawaguchiKazunori KimuraHidehiko Nakagawa
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2019 Volume 67 Issue 6 Pages 576-579


Spatiotemporally controllable nitric oxide (NO) releasers are very attractive chemical tools for investigating the biological activities of NO, which is involved in the regulation of vasodilation, neurotransmission, and immune responses. We previously developed an easily synthesized, yellowish-green-light-controllable NO releaser, NO-Rosa5, and characterized its photoredox reaction mechanism. Here, we aimed to establish the biological applicability of NO-Rosa5 for in cellullo and ex vivo experiments. We successfully demonstrated yellowish-green-light-controlled NO release in HEK293T cells in vitro, as well as photomanipulation of the rat aorta response to NO in an ex vivo system. Furthermore, NO-Rosa5 showed lower toxicity than NOBL-1, a previously reported blue-light-controllable NO releaser, as determined by tetrazolium salt cell viability assay. Overall, our results indicate that NO-Rosa5 is a biocompatible, photocontrollable NO releaser with low toxicity and potentially broad applicability.

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© 2019 The Pharmaceutical Society of Japan
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