Overview of Cell Death Mechanisms Induced by Rose Bengal Acetate-Photodynamic Therapy

Photodynamic Therapy (PDT) is a non-invasive treatment for different pathologies, cancer included, using three key components: non-toxic light-activated drug (Photosensitizer, PS), visible light, and oxygen. Their interaction triggers photochemical reactions leading to Reactive Oxygen Species (ROS)...

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Main Authors: Elisa Panzarini, Valentina Inguscio, Luciana Dini
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/2011/713726
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author Elisa Panzarini
Valentina Inguscio
Luciana Dini
author_facet Elisa Panzarini
Valentina Inguscio
Luciana Dini
author_sort Elisa Panzarini
collection DOAJ
description Photodynamic Therapy (PDT) is a non-invasive treatment for different pathologies, cancer included, using three key components: non-toxic light-activated drug (Photosensitizer, PS), visible light, and oxygen. Their interaction triggers photochemical reactions leading to Reactive Oxygen Species (ROS) generation, that mediate cytotoxicity and cell death. In the present paper, the most important findings about the synthetic dye Rose Bengal Acetate (RBAc), an emerging photosensitizer for its efficient induction of cell death, will be reported with the aim to integrate RBAc phototoxicity to novel therapeutic PDT strategies against tumour cells. After its perinuclear intracellular localization, RBAc causes multiple subcellular organelles damage, that is, mitochondria, Endoplasmic Reticulum (ER), lysosomes, and Golgi complex. Indeed, RBAc exerts long-term phototoxicity through activation of both caspase-independent and- dependent apoptotic pathways and autophagic cell death. In particular, this latter cell death type may promote cell demise when apoptotic machinery is defective. The deep knowledge of RBAc photocytotoxicity will allow to better understand its potential photomedicine application in cancer.
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spelling doaj-art-fd0d59da5a764da3a024939842440c3b2025-02-03T05:54:01ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2011-01-01201110.1155/2011/713726713726Overview of Cell Death Mechanisms Induced by Rose Bengal Acetate-Photodynamic TherapyElisa Panzarini0Valentina Inguscio1Luciana Dini2Department of Biological and Environmental Science and Technology (Di.S.Te.B.A.), University of Salento, 73100 Lecce, ItalyDepartment of Biological and Environmental Science and Technology (Di.S.Te.B.A.), University of Salento, 73100 Lecce, ItalyDepartment of Biological and Environmental Science and Technology (Di.S.Te.B.A.), University of Salento, 73100 Lecce, ItalyPhotodynamic Therapy (PDT) is a non-invasive treatment for different pathologies, cancer included, using three key components: non-toxic light-activated drug (Photosensitizer, PS), visible light, and oxygen. Their interaction triggers photochemical reactions leading to Reactive Oxygen Species (ROS) generation, that mediate cytotoxicity and cell death. In the present paper, the most important findings about the synthetic dye Rose Bengal Acetate (RBAc), an emerging photosensitizer for its efficient induction of cell death, will be reported with the aim to integrate RBAc phototoxicity to novel therapeutic PDT strategies against tumour cells. After its perinuclear intracellular localization, RBAc causes multiple subcellular organelles damage, that is, mitochondria, Endoplasmic Reticulum (ER), lysosomes, and Golgi complex. Indeed, RBAc exerts long-term phototoxicity through activation of both caspase-independent and- dependent apoptotic pathways and autophagic cell death. In particular, this latter cell death type may promote cell demise when apoptotic machinery is defective. The deep knowledge of RBAc photocytotoxicity will allow to better understand its potential photomedicine application in cancer.http://dx.doi.org/10.1155/2011/713726
spellingShingle Elisa Panzarini
Valentina Inguscio
Luciana Dini
Overview of Cell Death Mechanisms Induced by Rose Bengal Acetate-Photodynamic Therapy
International Journal of Photoenergy
title Overview of Cell Death Mechanisms Induced by Rose Bengal Acetate-Photodynamic Therapy
title_full Overview of Cell Death Mechanisms Induced by Rose Bengal Acetate-Photodynamic Therapy
title_fullStr Overview of Cell Death Mechanisms Induced by Rose Bengal Acetate-Photodynamic Therapy
title_full_unstemmed Overview of Cell Death Mechanisms Induced by Rose Bengal Acetate-Photodynamic Therapy
title_short Overview of Cell Death Mechanisms Induced by Rose Bengal Acetate-Photodynamic Therapy
title_sort overview of cell death mechanisms induced by rose bengal acetate photodynamic therapy
url http://dx.doi.org/10.1155/2011/713726
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