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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Fluorescence molecular tomography resolves protease activity in vivo.
J. Nat. Med. 8, 757-760 (2002)
Systematic efforts are under way to develop novel technologies that would allow molecular sensing in intact organisms in vivo. Using near-infrared fluorescent molecular beacons and inversion techniques that take into account the diffuse nature of photon propagation in tissue, we were able to obtain three-dimensional in vivo images of a protease in orthopic gliomas. We demonstrate that enzyme-activatable fluorochromes can be detected with high positional accuracy in deep tissues, that molecular specificities of different beacons towards enzymes can be resolved and that tomography of beacon activation is linearly related to enzyme concentration. The tomographic imaging method offers a range of new capabilities for studying biological function; for example, identifying molecular-expression patterns by multispectral imaging or continuously monitoring the efficacy of therapeutic drugs.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
ISSN (print) / ISBN
1340-3443
e-ISSN
1861-0293
Zeitschrift
Journal of natural medicines
Quellenangaben
Band: 8,
Heft: 7,
Seiten: 757-760
Verlag
Springer
Verlagsort
Tokyo [u.a.]
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed