Abstract |
Nine dyes, all potential sensitizers for photodynamic cancer therapy ( PDT), were injected in mice with C3H mammary carcinomas. Twenty-four hours later the animals were sacrificed and the dye concentrations in tumors and 9 other tissues were measured by means of spectrofluorimetry. The 9 dyes were: Photofrin II (PII), hematoporphyrin (HP)-di-hexyl- ether, PSD-007 (a sensitizer used in clinical trials in China), tetraphenyl porphine tetrasulfonate ( TPPS4), tetra(3-hydroxy phenyl)porphyrin (3THPP), aluminium phthalocyanine tetrasulfonate (AlPCTS), aluminium phthalocyanine (AlPC), chlorin e6 (Chl e6) and merocyanine 540 ( MC 540). The porphyrin precursor delta-aminolevulinic acid was also tested and found to induce porphyrin fluorescence in tumors and some other tissues. The best tumorlocalizer of those tested was 3THPP. This drug also showed a favorable tissue distribution. The following dyes showed lower skin/ tumor concentration ratios than PII (the most widely used dye for PDT): Chl e6, PSD-007, HP-di-hexyl- ether and 3THPP. Low brain/tumor ratios were found for: PSD-007, HP-di-hexyl- ether, 3THPP, TPPS4 and AlPCTS.
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Authors | P Qian, J F Evensen, C Rimington, J Moan |
Journal | Cancer letters
(Cancer Lett)
Vol. 36
Issue 1
Pg. 1-10
(Jul 1987)
ISSN: 0304-3835 [Print] Ireland |
PMID | 3581053
(Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
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Topics |
- Animals
- Chromatography, High Pressure Liquid
- Coloring Agents
(analysis, metabolism)
- Female
- Injections, Intraperitoneal
- Mammary Neoplasms, Experimental
(analysis, metabolism)
- Mice
- Tissue Distribution
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