Abstract
Photodynamic therapy (PDT) is a clinically approved method for treatment of cancer, microbial infections, and some other diseases. PDT has proved effective in the treatment of malignancies of various organs, including lung, bladder, gastrointestinal tract, and skin, and in the therapy of bacterial infection of skin wounds and carious lesions. It employs a combination of light and a drug (photosensitizer, PS) to induce phototoxicity against cancerous cells or bacteria. The efficiency of currently used PSs is limited due to their hydrophobic nature, which causes aggregation of the PS in aqueous media and low tumor selectivity (a low value of the tumor-to-normal tissue ratio). The purpose of this review is to present some aspects of the current state of knowledge on nanostructural carriers for the PS delivery. In this paper we reviewed studies on the development of nanostructural materials for PDT, especially those based on the polymeric and liposomal formulation of PS. We focused mainly on the nanostructural PSs obtained by the covalent attachment of hydrophilic polymer chain to the low-molecular-weight PS, the incorporation of PS into polymeric nanostructures such as micelles, and the solubilization of PS in liposome carriers.
Keywords: Photodynamic therapy, tumor cells, antibacterial treatment, polymeric photosensitizers, liposomes, porphyrins, poly(ethylene glycol), microbial infections, skin wounds, carious lesions
Current Pharmaceutical Design
Title:Nanostructural Hybrid Sensitizers for Photodynamic Therapy
Volume: 18 Issue: 18
Author(s): Mariusz Kepczynski, Monika Dzieciuch and Maria Nowakowska
Affiliation:
Keywords: Photodynamic therapy, tumor cells, antibacterial treatment, polymeric photosensitizers, liposomes, porphyrins, poly(ethylene glycol), microbial infections, skin wounds, carious lesions
Abstract: Photodynamic therapy (PDT) is a clinically approved method for treatment of cancer, microbial infections, and some other diseases. PDT has proved effective in the treatment of malignancies of various organs, including lung, bladder, gastrointestinal tract, and skin, and in the therapy of bacterial infection of skin wounds and carious lesions. It employs a combination of light and a drug (photosensitizer, PS) to induce phototoxicity against cancerous cells or bacteria. The efficiency of currently used PSs is limited due to their hydrophobic nature, which causes aggregation of the PS in aqueous media and low tumor selectivity (a low value of the tumor-to-normal tissue ratio). The purpose of this review is to present some aspects of the current state of knowledge on nanostructural carriers for the PS delivery. In this paper we reviewed studies on the development of nanostructural materials for PDT, especially those based on the polymeric and liposomal formulation of PS. We focused mainly on the nanostructural PSs obtained by the covalent attachment of hydrophilic polymer chain to the low-molecular-weight PS, the incorporation of PS into polymeric nanostructures such as micelles, and the solubilization of PS in liposome carriers.
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Cite this article as:
Kepczynski Mariusz, Dzieciuch Monika and Nowakowska Maria, Nanostructural Hybrid Sensitizers for Photodynamic Therapy, Current Pharmaceutical Design 2012; 18 (18) . https://dx.doi.org/10.2174/138161212800492877
DOI https://dx.doi.org/10.2174/138161212800492877 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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