Abstract
The development of therapies which are selective for tumor tissues is one of the most important goals in anticancer research. Within this framework photochemotherapy can be considered a very promising approach. Its therapeutic effectiveness depends on two connected factors: drug and light. The drug (photosensitizer) is able to exert an antiproliferative effect only after interaction with suitable light. Both the photosensitizing drug and light alone are ineffective at doses used for these treatments. Nowadays, photochemotherapy is used in the treatment of cutaneous T-cell lymphoma and cavitary tumors. In the first case the photosensitizer is a psoralen derivative (P) and long-wavelength ultraviolet radiation (UVA) is used (PUVA therapy). In the second case, the treatment with porphyrins, porphyrin-based and non porphyrin-based photosensitizers is followed by irradiation with 600-1000 nm light (photodynamic therapy, PDT). This review is concerned with PUVA and PDT treatments of cancer. The molecular mechanisms considered accountable for the photochemotherapeutic effects are discussed, the development of new chemical structures aimed at improving the effectiveness and / or overcoming some undesired side effects will also be reported. Moreover, some clinical applications will be described.
Keywords: Photochemotherapy, Cancer, ultraviolet radiation (UVA), PUVA therapy, porphyrins, photodynamic therapy, lupus vulgaris, Cutaneous T-cell Lymphoma, Psoralen, 5-Methoxypsoral en (5-MOP)
Current Medicinal Chemistry
Title: Photochemotherapy in the Treatment of Cancer
Volume: 8 Issue: 12
Author(s): Lisa Dalla Via and Sebastiano Marciani Magno
Affiliation:
Keywords: Photochemotherapy, Cancer, ultraviolet radiation (UVA), PUVA therapy, porphyrins, photodynamic therapy, lupus vulgaris, Cutaneous T-cell Lymphoma, Psoralen, 5-Methoxypsoral en (5-MOP)
Abstract: The development of therapies which are selective for tumor tissues is one of the most important goals in anticancer research. Within this framework photochemotherapy can be considered a very promising approach. Its therapeutic effectiveness depends on two connected factors: drug and light. The drug (photosensitizer) is able to exert an antiproliferative effect only after interaction with suitable light. Both the photosensitizing drug and light alone are ineffective at doses used for these treatments. Nowadays, photochemotherapy is used in the treatment of cutaneous T-cell lymphoma and cavitary tumors. In the first case the photosensitizer is a psoralen derivative (P) and long-wavelength ultraviolet radiation (UVA) is used (PUVA therapy). In the second case, the treatment with porphyrins, porphyrin-based and non porphyrin-based photosensitizers is followed by irradiation with 600-1000 nm light (photodynamic therapy, PDT). This review is concerned with PUVA and PDT treatments of cancer. The molecular mechanisms considered accountable for the photochemotherapeutic effects are discussed, the development of new chemical structures aimed at improving the effectiveness and / or overcoming some undesired side effects will also be reported. Moreover, some clinical applications will be described.
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Cite this article as:
Via Dalla Lisa and Magno Marciani Sebastiano, Photochemotherapy in the Treatment of Cancer, Current Medicinal Chemistry 2001; 8 (12) . https://dx.doi.org/10.2174/0929867013372076
DOI https://dx.doi.org/10.2174/0929867013372076 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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