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Journal of Environmental Pathology, Toxicology and Oncology
Impact-faktor: 1.241 5-jähriger Impact-Faktor: 1.349 SJR: 0.356 SNIP: 0.613 CiteScore™: 1.61

ISSN Druckformat: 0731-8898
ISSN Online: 2162-6537

Journal of Environmental Pathology, Toxicology and Oncology

DOI: 10.1615/JEnvironPatholToxicolOncol.v26.i2.100
pages 149-155

Utility of the F98 Rat Glioma Model for Photodynamic Therapy

Steen J. Madsen
Department of Health Physics and Diagnostic Sciences, University of Nevada, Las Vegas, 4505 S. Maryland Pkwy., Box 453037, Las Vegas, NV 89154
Khishigzaya Kharkhuu
Department of Health Physics, University of Nevada, Las Vegas, 4505 Maryland Pkwy. Box 453037, Las Vegas, NV 89154-3037, USA
Henry Hirschberg
Beckman Laser Institute, University of California, Irvine, 1002 Health Sciences Rd. E, Irvine, CA 92612

ABSTRAKT

A syngeneic rat brain tumor model consisting of F98 glioma cells in Fischer rats was investigated for its utility in PDT studies. Results of in vitro studies demonstrated that the F98 cell line was sensitive to ALA-PDT, especially at low light irradiances. Histological examination revealed that F98 tumors share many fundamental characteristics with human GBMs, including rapid growth and infiltrative behavior. ALA-PDT in normal brain showed that high light fluencies (26 J) delivered at relatively low powers (10 mW) are capable of causing significant edema. These findings suggest that light irradiation parameters should be chosen carefully when treating tumor-bearing animals. Rats inoculated with F98 cells preincubated in ALA showed a significant survival advantage following light exposure. Taken together, the results suggest that the F98 rat glioma model is appropriate for PDT studies of malignant gliomas.