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Article Dans Une Revue Antioxidants and Redox Signaling Année : 2016

Imaging Reactive Oxygen Species-Induced Modifications in Living Systems

Résumé

Significance: Reactive Oxygen Species (ROS) may regulate signaling, ion channels, transcription factors, and biosynthetic processes. ROS-related diseases can be due to either a shortage or an excess of ROS. Recent Advances: Since the biological activity of ROS depends on not only concentration but also spatiotemporal distribution, real-time imaging of ROS, possibly ''in vivo,'' has become a need for scientists, with potential for clinical translation. New imaging techniques as well as new contrast agents in clinically established modalities were developed in the previous decade. Critical Issues: An ideal imaging technique should determine ROS changes with high spatiotemporal resolution, detect physiologically relevant variations in ROS concentration, and provide specificity toward different redox couples. Furthermore, for in vivo applications, bioavailability of sensors, tissue penetration, and a high signal-to-noise ratio are additional requirements to be satisfied. Future Directions: None of the presented techniques fulfill all requirements for clinical translation. The obvious way forward is to incorporate anatomical and functional imaging into a common hybrid-imaging platform.
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hal-01331330 , version 1 (13-06-2016)

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Giuseppe Maulucci, Goran Bačić, Lori Bridal, Harald H.H.W. Schmidt, Bertrand Tavitian, et al.. Imaging Reactive Oxygen Species-Induced Modifications in Living Systems. Antioxidants and Redox Signaling, 2016, 24 (16), pp.939-958. ⟨10.1089/ars.2015.6415⟩. ⟨hal-01331330⟩
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