Animal models for photodynamic therapy (PDT)

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Animal models for photodynamic therapy (PDT)

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Title: Animal models for photodynamic therapy (PDT)
Author: Silva, Zenildo Santos; Bussadori, Sandra Kalil; Fernandes, Kristianne Porta Santos; Huang, Ying-Ying; Hamblin, Michael R.

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Citation: Silva, Zenildo Santos, Sandra Kalil Bussadori, Kristianne Porta Santos Fernandes, Ying-Ying Huang, and Michael R. Hamblin. 2015. “Animal models for photodynamic therapy (PDT).” Bioscience Reports 35 (6): e00265. doi:10.1042/BSR20150188. http://dx.doi.org/10.1042/BSR20150188.
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Abstract: Photodynamic therapy (PDT) employs non-toxic dyes called photosensitizers (PSs), which absorb visible light to give the excited singlet state, followed by the long-lived triplet state that can undergo photochemistry. In the presence of ambient oxygen, reactive oxygen species (ROS), such as singlet oxygen and hydroxyl radicals are formed that are able to kill cancer cells, inactivate microbial pathogens and destroy unwanted tissue. Although there are already several clinically approved PSs for various disease indications, many studies around the world are using animal models to investigate the further utility of PDT. The present review will cover the main groups of animal models that have been described in the literature. Cancer comprises the single biggest group of models including syngeneic mouse/rat tumours that can either be subcutaneous or orthotopic and allow the study of anti-tumour immune response; human tumours that need to be implanted in immunosuppressed hosts; carcinogen-induced tumours; and mice that have been genetically engineered to develop cancer (often by pathways similar to those in patients). Infections are the second biggest class of animal models and the anatomical sites include wounds, burns, oral cavity, ears, eyes, nose etc. Responsible pathogens can include Gram-positive and Gram-negative bacteria, fungi, viruses and parasites. A smaller and diverse group of miscellaneous animal models have been reported that allow PDT to be tested in ophthalmology, atherosclerosis, atrial fibrillation, dermatology and wound healing. Successful studies using animal models of PDT are blazing the trail for tomorrow's clinical approvals.
Published Version: doi:10.1042/BSR20150188
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4643327/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:23845280
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