Oncological Applications of Photodynamic Therapy in Dogs and Cats

Photodynamic therapy (PDT) in small animals’ oncology has been under research focus, pointing to new treatment possibilities. Moreover, several animal studies constitute experimental human disease models due to the similarity of tumor biology between animals and man. PDT uses photosensitizing compou...

Full description

Bibliographic Details
Main Authors: Tarcísio Guerra Guimarães, Karla Menezes Cardoso, Carlos Miguel Marto, Ricardo Teixo, Beatriz Serambeque, Fernando Capela e Silva, Nuno Alexandre, Maria Filomena Botelho, Mafalda Laranjo
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/23/12276
_version_ 1827643351060447232
author Tarcísio Guerra Guimarães
Karla Menezes Cardoso
Carlos Miguel Marto
Ricardo Teixo
Beatriz Serambeque
Fernando Capela e Silva
Nuno Alexandre
Maria Filomena Botelho
Mafalda Laranjo
author_facet Tarcísio Guerra Guimarães
Karla Menezes Cardoso
Carlos Miguel Marto
Ricardo Teixo
Beatriz Serambeque
Fernando Capela e Silva
Nuno Alexandre
Maria Filomena Botelho
Mafalda Laranjo
author_sort Tarcísio Guerra Guimarães
collection DOAJ
description Photodynamic therapy (PDT) in small animals’ oncology has been under research focus, pointing to new treatment possibilities. Moreover, several animal studies constitute experimental human disease models due to the similarity of tumor biology between animals and man. PDT uses photosensitizing compounds without toxicity per se. When subjected to a specific wavelength, the photosensitizers are activated, triggering the production of reactive oxygen species (ROS) that lead to cell death. Additionally, antiangiogenic effects and immune stimulation may also be elicited. PDT is minimally invasive, non-toxic, and does not induce carcinogenic or mutagenic side effects. Thus, it is safe for non-neoplastic tissues compared with other neoplasms treatment modalities. This review describes the applications of PDT in the cancer treatment of small animals, particularly dogs and cats, focusing on the respective photosensitizers and treatment protocols used in trials in this therapeutic modality.
first_indexed 2024-03-09T17:53:10Z
format Article
id doaj.art-544e5d4e33364fa5a2b9a4393562ddd7
institution Directory Open Access Journal
issn 2076-3417
language English
last_indexed 2024-03-09T17:53:10Z
publishDate 2022-11-01
publisher MDPI AG
record_format Article
series Applied Sciences
spelling doaj.art-544e5d4e33364fa5a2b9a4393562ddd72023-11-24T10:33:52ZengMDPI AGApplied Sciences2076-34172022-11-0112231227610.3390/app122312276Oncological Applications of Photodynamic Therapy in Dogs and CatsTarcísio Guerra Guimarães0Karla Menezes Cardoso1Carlos Miguel Marto2Ricardo Teixo3Beatriz Serambeque4Fernando Capela e Silva5Nuno Alexandre6Maria Filomena Botelho7Mafalda Laranjo8Institute for Advanced Studies and Research (IIFA), University of Évora, 7002-554 Évora, PortugalInstitute for Advanced Studies and Research (IIFA), University of Évora, 7002-554 Évora, PortugalInstitute of Biophysics, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, PortugalInstitute of Biophysics, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, PortugalInstitute of Biophysics, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, PortugalMediterranean Institute for Agriculture, Environment and Development (MED) and Global Change and Sustainability Institute (CHANGE), 7006-554 Évora, PortugalMediterranean Institute for Agriculture, Environment and Development (MED) and Global Change and Sustainability Institute (CHANGE), 7006-554 Évora, PortugalInstitute of Biophysics, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, PortugalInstitute of Biophysics, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, PortugalPhotodynamic therapy (PDT) in small animals’ oncology has been under research focus, pointing to new treatment possibilities. Moreover, several animal studies constitute experimental human disease models due to the similarity of tumor biology between animals and man. PDT uses photosensitizing compounds without toxicity per se. When subjected to a specific wavelength, the photosensitizers are activated, triggering the production of reactive oxygen species (ROS) that lead to cell death. Additionally, antiangiogenic effects and immune stimulation may also be elicited. PDT is minimally invasive, non-toxic, and does not induce carcinogenic or mutagenic side effects. Thus, it is safe for non-neoplastic tissues compared with other neoplasms treatment modalities. This review describes the applications of PDT in the cancer treatment of small animals, particularly dogs and cats, focusing on the respective photosensitizers and treatment protocols used in trials in this therapeutic modality.https://www.mdpi.com/2076-3417/12/23/12276photodynamic therapyphotosensitizersveterinary oncology
spellingShingle Tarcísio Guerra Guimarães
Karla Menezes Cardoso
Carlos Miguel Marto
Ricardo Teixo
Beatriz Serambeque
Fernando Capela e Silva
Nuno Alexandre
Maria Filomena Botelho
Mafalda Laranjo
Oncological Applications of Photodynamic Therapy in Dogs and Cats
Applied Sciences
photodynamic therapy
photosensitizers
veterinary oncology
title Oncological Applications of Photodynamic Therapy in Dogs and Cats
title_full Oncological Applications of Photodynamic Therapy in Dogs and Cats
title_fullStr Oncological Applications of Photodynamic Therapy in Dogs and Cats
title_full_unstemmed Oncological Applications of Photodynamic Therapy in Dogs and Cats
title_short Oncological Applications of Photodynamic Therapy in Dogs and Cats
title_sort oncological applications of photodynamic therapy in dogs and cats
topic photodynamic therapy
photosensitizers
veterinary oncology
url https://www.mdpi.com/2076-3417/12/23/12276
work_keys_str_mv AT tarcisioguerraguimaraes oncologicalapplicationsofphotodynamictherapyindogsandcats
AT karlamenezescardoso oncologicalapplicationsofphotodynamictherapyindogsandcats
AT carlosmiguelmarto oncologicalapplicationsofphotodynamictherapyindogsandcats
AT ricardoteixo oncologicalapplicationsofphotodynamictherapyindogsandcats
AT beatrizserambeque oncologicalapplicationsofphotodynamictherapyindogsandcats
AT fernandocapelaesilva oncologicalapplicationsofphotodynamictherapyindogsandcats
AT nunoalexandre oncologicalapplicationsofphotodynamictherapyindogsandcats
AT mariafilomenabotelho oncologicalapplicationsofphotodynamictherapyindogsandcats
AT mafaldalaranjo oncologicalapplicationsofphotodynamictherapyindogsandcats