| Literature DB >> 12168102 |
Scott A Friesen1, Geir Olav Hjortland, Steen J Madsen, Henry Hirschberg, Olav Engebraten, Jahn M Nesland, Qian Peng.
Abstract
With current treatment methods the prognosis for patients with aggressive brain tumors is dismal. Treatment failure is usually due to local recurrence of tumor. Intra-operative photodynamic detection (PDD) of tumor tissue and post-surgical photodynamic therapy (PDT) of the resection cavity may be of benefit. The utility of 5-aminolevulinic acid (ALA) has been recognized in many different treatment fields over the past decade. Following administration of exogenous ALA, the endogenous photosensitizer, protoporphyrin IX (PpIX), accumulates in tumor tissue. A photodynamic effect occurs upon light activation of the target tissue. This article reviews the current preclinical and clinical studies and potential future applications of ALA and its ester-induced PpIX as a photosensitizing agent in the detection and treatment of brain tumors.Entities:
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Year: 2002 PMID： 12168102
Source DB: PubMed Journal: Int J Oncol ISSN： 1019-6439 Impact factor: 5.650