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Proceedings Paper

Specific labeling of microtumors in the hen's egg test system by dimethoxyhematoporphyrin
Author(s): Anja Vervoorts; Joerg G. Moser; Gelii V. Ponomarev; H. Achim Rood
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Paper Abstract

The accumulation of fluorescent dyes and anticancer drugs in tumors is a fundamental requirement for tumor-diagnosis and therapy. We tested various photosensitizers on vascularized microtumors in the hen's egg test system according to their distribution and accumulation by in-situ videofluorescence microscopy and their influence on tumor blood flow by laser- Doppler spectroscopy. Only 2,4-di((alpha) -methoxyethyl)- hematoporphyrin showed strict tumor localization while diglucosamidyl-heptyl-chlorin labeled cell membranes exclusively. Results from laser-Doppler spectroscopy did not show any influence on tumor blood flow. Intelligent combining of the properties of these sensitizers with accumulation strategies should show in principle strict tumor localization without targeting of non-tumor tissues.

Paper Details

Date Published: 4 December 1996
PDF: 8 pages
Proc. SPIE 2924, Photochemotherapy: Photodynamic Therapy and Other Modalities II, (4 December 1996); doi: 10.1117/12.260791
Show Author Affiliations
Anja Vervoorts, Institute of Laser Medicine/Univ. of Duesseldorf (Germany)
Joerg G. Moser, Institute of Laser Medicine/Univ. of Duesseldorf (Germany)
Gelii V. Ponomarev, Institute of Biomedical Chemistry (Russia)
H. Achim Rood, Institute of Laser Medicine/Univ. of Duesseldorf (Germany)


Published in SPIE Proceedings Vol. 2924:
Photochemotherapy: Photodynamic Therapy and Other Modalities II
Stanley B. Brown; Benjamin Ehrenberg; Johan Moan, Editor(s)

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