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Cancers 2016, 8(9), 83; doi:10.3390/cancers8090083

Prospects in the Application of Photodynamic Therapy in Oral Cancer and Premalignant Lesions

1
Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
2
Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada
*
Author to whom correspondence should be addressed.
Academic Editor: Michael R. Hamblin
Received: 26 July 2016 / Revised: 26 August 2016 / Accepted: 30 August 2016 / Published: 2 September 2016
(This article belongs to the Special Issue Photodynamic Cancer Therapy)
View Full-Text   |   Download PDF [239 KB, uploaded 2 September 2016]

Abstract

Oral cancer is a global health burden with significantly poor survival, especially when the diagnosis is at its late stage. Despite advances in current treatment modalities, there has been minimal improvement in survival rates over the last five decades. The development of local recurrence, regional failure, and the formation of second primary tumors accounts for this poor outcome. For survivors, cosmetic and functional compromises resulting from treatment are often devastating. These statistics underscore the need for novel approaches in the management of this deadly disease. Photodynamic therapy (PDT) is a treatment modality that involves administration of a light-sensitive drug, known as a photosensitizer, followed by light irradiation of an appropriate wavelength that corresponds to an absorbance band of the sensitizer. In the presence of tissue oxygen, cytotoxic free radicals that are produced cause direct tumor cell death, damage to the microvasculature, and induction of inflammatory reactions at the target sites. PDT offers a prospective new approach in controlling this disease at its various stages either as a stand-alone therapy for early lesions or as an adjuvant therapy for advanced cases. In this review, we aim to explore the applications of PDT in oral cancer therapy and to present an overview of the recent advances in PDT that can potentially reposition its utility for oral cancer treatment. View Full-Text
Keywords: photodynamic therapy; tumor vaccine; precancer; topical treatment; oral cancers photodynamic therapy; tumor vaccine; precancer; topical treatment; oral cancers
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Saini, R.; Lee, N.V.; Liu, K.Y.P.; Poh, C.F. Prospects in the Application of Photodynamic Therapy in Oral Cancer and Premalignant Lesions. Cancers 2016, 8, 83.

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