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Hao Y, Gu Z, Yu Z, Schomann T, Sayedipour S, Aguilar JC, ten Dijke P, Cruz LJ. Photodynamic Therapy in Combination with the Hepatitis B Core Virus-like Particles (HBc VLPs) to Prime Anticancer Immunity for Colorectal Cancer Treatment. Cancers (Basel) 2022; 14:2724. [PMID: 35681703 PMCID: PMC9179923 DOI: 10.3390/cancers14112724] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/19/2022] [Accepted: 05/25/2022] [Indexed: 12/24/2022] Open
Abstract
Photodynamic therapy (PDT), which combines light and oxygen with a photosensitizer to induce reactive oxygen species (ROS)-mediated killing of primary tumor cells, benefits from non-invasive properties and its negligible toxicity to surrounding healthy tissues. In this study, we have shown that the second-generation photosensitizer FOSCAN can be internalized by tumor cells and effectively induce tumor cell death when exposed to laser irradiation in vitro. In addition, these dying tumor cells can be phagocytosed by dendritic cells and lead to their activation and maturation as assessed by in vitro co-culture models. While PDT induces immunogenic tumor cell apoptosis, its application for the treatment of tumors located in deep tissues and advanced malignancies has been limited. In this study, we demonstrate that hepatitis B core virus-like particles (HBc VLPs) can serve as a vaccine to enhance PDT-induced anti-cancer immunity by priming humoral immune responses and inducing CD8+ T cell responses. The combination of PDT and HBc VLPs increased the survival rate of MC-38 tumor-bearing mice to 55%, compared to 33% in PDT alone and no tumor-free mice in vaccine alone. Moreover, the combination effectively prevented tumor recurrence in vivo through enhanced immune memory T cells after therapy. Therefore, as both are clinically approved techniques, this combination provides a promising strategy for cancer therapy.
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Affiliation(s)
- Yang Hao
- Translational Nanobiomaterials and Imaging (TNI) Group, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands; (Y.H.); (Z.G.); (Z.Y.); (T.S.); (S.S.)
| | - Zili Gu
- Translational Nanobiomaterials and Imaging (TNI) Group, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands; (Y.H.); (Z.G.); (Z.Y.); (T.S.); (S.S.)
| | - Zhenfeng Yu
- Translational Nanobiomaterials and Imaging (TNI) Group, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands; (Y.H.); (Z.G.); (Z.Y.); (T.S.); (S.S.)
| | - Timo Schomann
- Translational Nanobiomaterials and Imaging (TNI) Group, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands; (Y.H.); (Z.G.); (Z.Y.); (T.S.); (S.S.)
- Percuros B.V., Zernikedreef 8, 2333 CL Leiden, The Netherlands
| | - Sana Sayedipour
- Translational Nanobiomaterials and Imaging (TNI) Group, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands; (Y.H.); (Z.G.); (Z.Y.); (T.S.); (S.S.)
| | - Julio C. Aguilar
- Center for Genetic Engineering and Biotechnology, CIGB, Havana 10600, Cuba;
| | - Peter ten Dijke
- Department of Cell and Chemical Biology and Oncode Institute, Leiden University Medical Center, Einthovenweg 20, 2300 RC Leiden, The Netherlands
| | - Luis J. Cruz
- Translational Nanobiomaterials and Imaging (TNI) Group, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands; (Y.H.); (Z.G.); (Z.Y.); (T.S.); (S.S.)
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Alzeibak R, Mishchenko TA, Shilyagina NY, Balalaeva IV, Vedunova MV, Krysko DV. Targeting immunogenic cancer cell death by photodynamic therapy: past, present and future. J Immunother Cancer 2021; 9:e001926. [PMID: 33431631 PMCID: PMC7802670 DOI: 10.1136/jitc-2020-001926] [Citation(s) in RCA: 236] [Impact Index Per Article: 78.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2020] [Indexed: 12/18/2022] Open
Abstract
The past decade has witnessed major breakthroughs in cancer immunotherapy. This development has been largely motivated by cancer cell evasion of immunological control and consequent tumor resistance to conventional therapies. Immunogenic cell death (ICD) is considered one of the most promising ways to achieve total tumor cell elimination. It activates the T-cell adaptive immune response and results in the formation of long-term immunological memory. ICD can be triggered by many anticancer treatment modalities, including photodynamic therapy (PDT). In this review, we first discuss the role of PDT based on several classes of photosensitizers, including porphyrins and non-porphyrins, and critically evaluate their potential role in ICD induction. We emphasize the emerging trend of ICD induction by PDT in combination with nanotechnology, which represents third-generation photosensitizers and involves targeted induction of ICD by PDT. However, PDT also has some limitations, including the reduced efficiency of ICD induction in the hypoxic tumor microenvironment. Therefore, we critically evaluate strategies for overcoming this limitation, which is essential for increasing PDT efficiency. In the final part, we suggest several areas for future research for personalized cancer immunotherapy, including strategies based on oxygen-boosted PDT and nanoparticles. In conclusion, the insights from the last several years increasingly support the idea that PDT is a powerful strategy for inducing ICD in experimental cancer therapy. However, most studies have focused on mouse models, but it is necessary to validate this strategy in clinical settings, which will be a challenging research area in the future.
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Affiliation(s)
- Razan Alzeibak
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russian Federation
| | - Tatiana A Mishchenko
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russian Federation
| | - Natalia Y Shilyagina
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russian Federation
| | - Irina V Balalaeva
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russian Federation
| | - Maria V Vedunova
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russian Federation
| | - Dmitri V Krysko
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russian Federation
- Cell Death Investigation and Therapy Laboratory (CDIT), Department of Human Structure and Repair, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
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Das S, Tiwari M, Mondal D, Sahoo BR, Tiwari DK. Growing tool-kit of photosensitizers for clinical and non-clinical applications. J Mater Chem B 2020; 8:10897-10940. [PMID: 33165483 DOI: 10.1039/d0tb02085k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Photosensitizers are photosensitive molecules utilized in clinical and non-clinical applications by taking advantage of light-mediated reactive oxygen generation, which triggers local and systemic cellular toxicity. Photosensitizers are used for diverse biological applications such as spatio-temporal inactivation of a protein in a living system by chromophore-assisted light inactivation, localized cell photoablation, photodynamic and immuno-photodynamic therapy, and correlative light-electron microscopy imaging. Substantial efforts have been made to develop several genetically encoded, chemically synthesized, and nanotechnologically driven photosensitizers for successful implementation in redox biology applications. Genetically encoded photosensitizers (GEPS) or reactive oxygen species (ROS) generating proteins have the advantage of using them in the living system since they can be manipulated by genetic engineering with a variety of target-specific genes for the precise spatio-temporal control of ROS generation. The GEPS variety is limited but is expanding with a variety of newly emerging GEPS proteins. Apart from GEPS, a large variety of chemically- and nanotechnologically-empowered photosensitizers have been developed with a major focus on photodynamic therapy-based cancer treatment alone or in combination with pre-existing treatment methods. Recently, immuno-photodynamic therapy has emerged as an effective cancer treatment method using smartly designed photosensitizers to initiate and engage the patient's immune system so as to empower the photosensitizing effect. In this review, we have discussed various types of photosensitizers, their clinical and non-clinical applications, and implementation toward intelligent efficacy, ROS efficiency, and target specificity in biological systems.
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Affiliation(s)
- Suman Das
- Department of Biotechnology, Faculty of Life Sciences and Environment, Goa University, Taleigao Plateau, Goa 403206, India.
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León D, Buchegger K, Silva R, Riquelme I, Viscarra T, Mora-Lagos B, Zanella L, Schafer F, Kurachi C, Roa JC, Ili C, Brebi P. Epigallocatechin Gallate Enhances MAL-PDT Cytotoxic Effect on PDT-Resistant Skin Cancer Squamous Cells. Int J Mol Sci 2020; 21:ijms21093327. [PMID: 32397263 PMCID: PMC7247423 DOI: 10.3390/ijms21093327] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/18/2020] [Accepted: 01/20/2020] [Indexed: 02/06/2023] Open
Abstract
Photodynamic therapy (PDT) has been used to treat certain types of non-melanoma skin cancer with promising results. However, some skin lesions have not fully responded to this treatment, suggesting a potential PDT-resistant phenotype. Therefore, novel therapeutic alternatives must be identified that improve PDT in resistant skin cancer. In this study, we analyzed the cell viability, intracellular protoporphyrin IX (PpIX) content and subcellular localization, proliferation profile, cell death, reactive oxygen species (ROS) detection and relative gene expression in PDT-resistant HSC-1 cells. PDT-resistant HSC-1 cells show a low quantity of protoporphyrin IX and low levels of ROS, and thus a low rate of death cell. Furthermore, the resistant phenotype showed a downregulation of HSPB1, SLC15A2, FECH, SOD2 and an upregulation of HMBS and BIRC5 genes. On the other hand, epigallocatechin gallate catechin enhanced the MAL-PDT effect, increasing levels of protoporphyrin IX and ROS, and killing 100% of resistant cells. The resistant MAL-PDT model of skin cancer squamous cells (HSC-1) is a reliable and useful tool to understand PDT cytotoxicity and cellular response. These resistant cells were successfully sensitized with epigallocatechin gallate catechin. The in vitro epigallocatechin gallate catechin effect as an enhancer of MAL-PDT in resistant cells is promising in the treatment of difficult skin cancer lesions.
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Affiliation(s)
- Daniela León
- Laboratory of Integrative Biology, Centro de Excelencia en Medicina Traslacional—Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Universidad de La Frontera, Temuco 4810296, Chile; (D.L.); (K.B.); (T.V.); (B.M.-L.); (L.Z.)
| | - Kurt Buchegger
- Laboratory of Integrative Biology, Centro de Excelencia en Medicina Traslacional—Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Universidad de La Frontera, Temuco 4810296, Chile; (D.L.); (K.B.); (T.V.); (B.M.-L.); (L.Z.)
- Department of Basic Sciences, School of Medicine, Universidad de La Frontera, Temuco 4811230, Chile
| | - Ramón Silva
- Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud. Universidad Autónoma de Chile, Temuco 4810101, Chile; (R.S.); (I.R.)
| | - Ismael Riquelme
- Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud. Universidad Autónoma de Chile, Temuco 4810101, Chile; (R.S.); (I.R.)
| | - Tamara Viscarra
- Laboratory of Integrative Biology, Centro de Excelencia en Medicina Traslacional—Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Universidad de La Frontera, Temuco 4810296, Chile; (D.L.); (K.B.); (T.V.); (B.M.-L.); (L.Z.)
| | - Bárbara Mora-Lagos
- Laboratory of Integrative Biology, Centro de Excelencia en Medicina Traslacional—Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Universidad de La Frontera, Temuco 4810296, Chile; (D.L.); (K.B.); (T.V.); (B.M.-L.); (L.Z.)
| | - Louise Zanella
- Laboratory of Integrative Biology, Centro de Excelencia en Medicina Traslacional—Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Universidad de La Frontera, Temuco 4810296, Chile; (D.L.); (K.B.); (T.V.); (B.M.-L.); (L.Z.)
| | - Fabiola Schafer
- Department of Medical Specialties, School of Medicine, Universidad de La Frontera, Temuco 4811230, Chile;
| | - Cristina Kurachi
- São Carlos Institute of Physics, University of São Paulo (USP), P.O. Box 369, São Carlos 13560-970, São Paulo, Brazil;
| | - Juan Carlos Roa
- Department of Pathology, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile;
| | - Carmen Ili
- Laboratory of Integrative Biology, Centro de Excelencia en Medicina Traslacional—Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Universidad de La Frontera, Temuco 4810296, Chile; (D.L.); (K.B.); (T.V.); (B.M.-L.); (L.Z.)
- Correspondence: (C.I.); (P.B.); Tel.: +56-45-2-596693 (C.I.); +56-45-2-596583 (P.B.)
| | - Priscilla Brebi
- Laboratory of Integrative Biology, Centro de Excelencia en Medicina Traslacional—Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Universidad de La Frontera, Temuco 4810296, Chile; (D.L.); (K.B.); (T.V.); (B.M.-L.); (L.Z.)
- Correspondence: (C.I.); (P.B.); Tel.: +56-45-2-596693 (C.I.); +56-45-2-596583 (P.B.)
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Lamberti MJ, Nigro A, Mentucci FM, Rumie Vittar NB, Casolaro V, Dal Col J. Dendritic Cells and Immunogenic Cancer Cell Death: A Combination for Improving Antitumor Immunity. Pharmaceutics 2020; 12:pharmaceutics12030256. [PMID: 32178288 PMCID: PMC7151083 DOI: 10.3390/pharmaceutics12030256] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/05/2020] [Accepted: 03/10/2020] [Indexed: 02/07/2023] Open
Abstract
The safety and feasibility of dendritic cell (DC)-based immunotherapies in cancer management have been well documented after more than twenty-five years of experimentation, and, by now, undeniably accepted. On the other hand, it is equally evident that DC-based vaccination as monotherapy did not achieve the clinical benefits that were predicted in a number of promising preclinical studies. The current availability of several immune modulatory and targeting approaches opens the way to many potential therapeutic combinations. In particular, the evidence that the immune-related effects that are elicited by immunogenic cell death (ICD)-inducing therapies are strictly associated with DC engagement and activation strongly support the combination of ICD-inducing and DC-based immunotherapies. In this review, we examine the data in recent studies employing tumor cells, killed through ICD induction, in the formulation of anticancer DC-based vaccines. In addition, we discuss the opportunity to combine pharmacologic or physical therapeutic approaches that can promote ICD in vivo with in situ DC vaccination.
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Affiliation(s)
- María Julia Lamberti
- Departamento de Biología Molecular, Universidad Nacional de Río Cuarto, Río Cuarto 5800, Córdoba, Argentina; (M.J.L.); (F.M.M.)
- INBIAS, CONICET-UNRC, Río Cuarto 5800, Córdoba, Argentina
| | - Annunziata Nigro
- Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Salerno, Italy; (A.N.); (V.C.)
| | - Fátima María Mentucci
- Departamento de Biología Molecular, Universidad Nacional de Río Cuarto, Río Cuarto 5800, Córdoba, Argentina; (M.J.L.); (F.M.M.)
- INBIAS, CONICET-UNRC, Río Cuarto 5800, Córdoba, Argentina
| | - Natalia Belén Rumie Vittar
- Departamento de Biología Molecular, Universidad Nacional de Río Cuarto, Río Cuarto 5800, Córdoba, Argentina; (M.J.L.); (F.M.M.)
- INBIAS, CONICET-UNRC, Río Cuarto 5800, Córdoba, Argentina
- Correspondence: (N.B.R.V.); (J.D.C.); Tel.: +39-089-965-210 (J.D.C.)
| | - Vincenzo Casolaro
- Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Salerno, Italy; (A.N.); (V.C.)
| | - Jessica Dal Col
- Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84081 Baronissi, Salerno, Italy; (A.N.); (V.C.)
- Correspondence: (N.B.R.V.); (J.D.C.); Tel.: +39-089-965-210 (J.D.C.)
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Nath S, Obaid G, Hasan T. The Course of Immune Stimulation by Photodynamic Therapy: Bridging Fundamentals of Photochemically Induced Immunogenic Cell Death to the Enrichment of T-Cell Repertoire. Photochem Photobiol 2019; 95:1288-1305. [PMID: 31602649 PMCID: PMC6878142 DOI: 10.1111/php.13173] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 10/04/2019] [Indexed: 12/15/2022]
Abstract
Photodynamic therapy (PDT) is a potentially immunogenic and FDA-approved antitumor treatment modality that utilizes the spatiotemporal combination of a photosensitizer, light and oftentimes oxygen, to generate therapeutic cytotoxic molecules. Certain photosensitizers under specific conditions, including ones in clinical practice, have been shown to elicit an immune response following photoillumination. When localized within tumor tissue, photogenerated cytotoxic molecules can lead to immunogenic cell death (ICD) of tumor cells, which release damage-associated molecular patterns and tumor-specific antigens. Subsequently, the T-lymphocyte (T cell)-mediated adaptive immune system can become activated. Activated T cells then disseminate into systemic circulation and can eliminate primary and metastatic tumors. In this review, we will detail the multistage cascade of events following PDT of solid tumors that ultimately lead to the activation of an antitumor immune response. More specifically, we connect the fundamentals of photochemically induced ICD with a proposition on potential mechanisms for PDT enhancement of the adaptive antitumor response. We postulate a hypothesis that during the course of the immune stimulation process, PDT also enriches the T-cell repertoire with tumor-reactive activated T cells, diversifying their tumor-specific targets and eliciting a more expansive and rigorous antitumor response. The implications of such a process are likely to impact the outcomes of rational combinations with immune checkpoint blockade, warranting investigations into T-cell diversity as a previously understudied and potentially transformative paradigm in antitumor photodynamic immunotherapy.
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Affiliation(s)
- Shubhankar Nath
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Girgis Obaid
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Tayyaba Hasan
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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Donohoe C, Senge MO, Arnaut LG, Gomes-da-Silva LC. Cell death in photodynamic therapy: From oxidative stress to anti-tumor immunity. Biochim Biophys Acta Rev Cancer 2019; 1872:188308. [PMID: 31401103 DOI: 10.1016/j.bbcan.2019.07.003] [Citation(s) in RCA: 183] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 07/25/2019] [Accepted: 07/25/2019] [Indexed: 01/11/2023]
Abstract
Photodynamic therapy is a promising approach for cancer treatment that relies on the administration of a photosensitizer followed by tumor illumination. The generated oxidative stress may activate multiple mechanisms of cell death which are counteracted by cells through adaptive stress responses that target homeostasis rescue. The present renaissance of PDT was leveraged by the acknowledgment that this therapy has an immediate impact locally, in the illumination volume, but that subsequently it may also elicit immune responses with systemic impact. The investigation of the mechanisms of cell death under the oxidative stress of PDT is of paramount importance to understand how the immune system is activated and, ultimately, to make PDT a more appealing/relevant therapeutic option.
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Affiliation(s)
- Claire Donohoe
- CQC, Coimbra Chemistry Center, University of Coimbra, Portugal; Medicinal Chemistry, Trinity Translational Medicine Institute, Trinity Centre for Health Sciences, Trinity College Dublin, The University of Dublin, St. James's Hospital, Dublin 8, Ireland
| | - Mathias O Senge
- Medicinal Chemistry, Trinity Translational Medicine Institute, Trinity Centre for Health Sciences, Trinity College Dublin, The University of Dublin, St. James's Hospital, Dublin 8, Ireland
| | - Luís G Arnaut
- CQC, Coimbra Chemistry Center, University of Coimbra, Portugal
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Wu C, Guan X, Xu J, Zhang Y, Liu Q, Tian Y, Li S, Qin X, Yang H, Liu Y. Highly efficient cascading synergy of cancer photo-immunotherapy enabled by engineered graphene quantum dots/photosensitizer/CpG oligonucleotides hybrid nanotheranostics. Biomaterials 2019; 205:106-119. [PMID: 30913486 DOI: 10.1016/j.biomaterials.2019.03.020] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 02/04/2019] [Accepted: 03/14/2019] [Indexed: 12/29/2022]
Abstract
Currently, photoimmunotherapy based on a theranostic nanoplatform emerges as a promising modality in advanced cancer therapy. In this study, a new type of versatile nanoassemblies (denoted as PC@GCpD(Gd)) was rationally designed by integrating the polydopamine stabilized graphene quantum dots (GQD)-photosensitizer nanocomposites (denoted as GCpD), immunostimulatory polycationic polymer/CpG oligodeoxynucleotide (CpG ODN) nanoparticles (denoted as PC) and Gd3+/Cy3 imaging probes for dual magnetic resonance/fluorescence imaging-guided photoimmunotherapy. PC@GCpD(Gd) effectively killed the tumor cells through the amplified photothermal and photodynamic effects mediated by GCpD, and contemporaneously delivered CpG ODN to the targeted endosomal Toll-like receptor 9 (TLR9) to continuously stimulate the secretion of proinflammatory cytokines and the maturation of dendritic cells, thereby resulting in the activation and infiltration of T lymphocytes. As a result, PC@GCpD(Gd) achieved robust inhibition efficiency to almost completely suppress the EMT6 murine mammary cancer model under laser irradiation, implying the superior synergy of combined photoimmunotherapy. Moreover, the in vivo delivery and biodistribution of PC@GCpD(Gd) could be tracked using the high-quality bimodal magnetic resonance imaging/fluorescence imaging. This study highlighted the potent prospect of hybrid PC@GCpD(Gd) nanoassemblies for precise cancer photoimmunotherapy with a cascading effect.
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Affiliation(s)
- Chunhui Wu
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China; Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China
| | - Xiaotian Guan
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China
| | - Jiming Xu
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China
| | - Yingxue Zhang
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China
| | - Qiuyue Liu
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China
| | - Yuan Tian
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China
| | - Shun Li
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China; Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China
| | - Xiang Qin
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China; Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China
| | - Hong Yang
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China; Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China
| | - Yiyao Liu
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China; Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, 610054, PR China; Hospital of Chengdu University of Traditional Chinese Medicine, No.39 Shi-er-qiao Road, Chengdu, 610072, Sichuan, PR China.
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Chen B. 14 Vascular imaging in photodynamic therapy. IMAGING IN PHOTODYNAMIC THERAPY 2017:275-292. [DOI: 10.1201/9781315278179-15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Photodynamic Efficiency of Xanthene Dyes and Their Phototoxicity against a Carcinoma Cell Line: A Computational and Experimental Study. J CHEM-NY 2017. [DOI: 10.1155/2017/7365263] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The aim of this study is to assess the insights of molecular properties of the xanthene dyes [fluorescein (FL), Rose Bengal (RB), erythrosin B (EB), and eosin Y (EY)] to correlate systematically their photodynamic efficiency as well as their phototoxicity against a carcinoma cell line. The phototoxicity was evaluated by comparing the values of the medium inhibitory concentration (IC50) upon HEp-2 cells with the xanthene corresponding photodynamic activity using the uric acid as a chemical dosimeter and their octanol-water partition coefficient (logP). RB was the more cytotoxic dye against HEp-2 cell line and the most efficient photosensitizer in causing photoxidation of uric acid; nevertheless it was the only one characterized as being hydrophobic among the xanthenes studied here. On the other hand, it was observed that the halogen substituents increased the hydrophilicity and photodynamic activity, consistent with the cytotoxic experiments. Furthermore, the reactivity index parameters, electric dipole moment, molecular volume, and the frontier orbitals were also obtained by the Density Functional Theory (DFT). The lowest dipole moment and highest molecular volume of RB corroborate with its highest hydrophobicity due to heavy atom substituents like halogens, while the halogen substituents did not affect expressively the electronic features at all.
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Yang Y, Hu Y, Wang H. Targeting Antitumor Immune Response for Enhancing the Efficacy of Photodynamic Therapy of Cancer: Recent Advances and Future Perspectives. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:5274084. [PMID: 27672421 PMCID: PMC5031843 DOI: 10.1155/2016/5274084] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 08/04/2016] [Indexed: 02/06/2023]
Abstract
Photodynamic therapy (PDT) is a minimally invasive therapeutic strategy for cancer treatment, which can destroy local tumor cells and induce systemic antitumor immune response, whereas, focusing on improving direct cytotoxicity to tumor cells treated by PDT, there is growing interest in developing approaches to further explore the immune stimulatory properties of PDT. In this review we summarize the current knowledge of the innate and adaptive immune responses induced by PDT against tumors, providing evidence showing PDT facilitated-antitumor immunity. Various immunotherapeutic approaches on different cells are reviewed for their effectiveness in improving the treatment efficiency in concert with PDT. Future perspectives are discussed for further enhancing PDT efficiency via intracellular targetable drug delivery as well as optimized experimental model development associated with the study of antitumor immune response.
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Affiliation(s)
- Yamin Yang
- Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, 169 Sheng Tai West Road, Nanjing, Jiangsu 211106, China
| | - Yue Hu
- Department of Biological and Environmental Engineering, Cornell University, 120 Riley Robb, Ithaca, NY 14853, USA
| | - Hongjun Wang
- Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, NJ 07030, USA
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12
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Abstract
Heat shock protein 70, (Hsp70) constitutes a powerful system of cytoprotection in all organisms studied to date. Exerting such activity, Hsp70 rescues cancer cells from antitumor therapy, posing a great challenge for oncologists. In contrast to its protective action, Hsp70 was found to be released from cancer cells, prompting cytotoxic lymphocytes to target and kill the tumor. A great number of vaccines have been developed on the basis of the ability of Hsp70 to present tumor antigen or to elevate the sensitivity of cancer cells to cytotoxic lymphocytes. In this commentary, we consider novel data on the employment of pure Hsp70 in the therapy of glioma and melanoma malignancies. We show that intratumorally delivered Hsp70 penetrates cancer cells and pulls its intracellular analog outside of the cell. This displacement may activate cells, constituting both innate and adaptive immunity. In vivo delivery of Hsp70 was found to inhibit tumor growth and to extend survival. The technology of intratumoral injection of pure Hsp70 passed through preclinical trials and was investigated in clinics for children with brain cancer; the results show the safety and feasibility of a new approach.
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Affiliation(s)
- Irina V Guzhova
- a Institute of Cytology of Russian Academy of Sciences , St. Petersburg , Russia
| | - Boris A Margulis
- a Institute of Cytology of Russian Academy of Sciences , St. Petersburg , Russia
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13
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Vandenberk L, Belmans J, Van Woensel M, Riva M, Van Gool SW. Exploiting the Immunogenic Potential of Cancer Cells for Improved Dendritic Cell Vaccines. Front Immunol 2016; 6:663. [PMID: 26834740 PMCID: PMC4712296 DOI: 10.3389/fimmu.2015.00663] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 12/26/2015] [Indexed: 12/31/2022] Open
Abstract
Cancer immunotherapy is currently the hottest topic in the oncology field, owing predominantly to the discovery of immune checkpoint blockers. These promising antibodies and their attractive combinatorial features have initiated the revival of other effective immunotherapies, such as dendritic cell (DC) vaccinations. Although DC-based immunotherapy can induce objective clinical and immunological responses in several tumor types, the immunogenic potential of this monotherapy is still considered suboptimal. Hence, focus should be directed on potentiating its immunogenicity by making step-by-step protocol innovations to obtain next-generation Th1-driving DC vaccines. We review some of the latest developments in the DC vaccination field, with a special emphasis on strategies that are applied to obtain a highly immunogenic tumor cell cargo to load and to activate the DCs. To this end, we discuss the effects of three immunogenic treatment modalities (ultraviolet light, oxidizing treatments, and heat shock) and five potent inducers of immunogenic cell death [radiotherapy, shikonin, high-hydrostatic pressure, oncolytic viruses, and (hypericin-based) photodynamic therapy] on DC biology and their application in DC-based immunotherapy in preclinical as well as clinical settings.
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Affiliation(s)
- Lien Vandenberk
- Laboratory of Pediatric Immunology, Department of Immunology and Microbiology, KU Leuven University of Leuven , Leuven , Belgium
| | - Jochen Belmans
- Laboratory of Pediatric Immunology, Department of Immunology and Microbiology, KU Leuven University of Leuven , Leuven , Belgium
| | - Matthias Van Woensel
- Laboratory of Experimental and Neuroanatomy, Department of Neurosciences, KU Leuven University of Leuven, Leuven, Belgium; Laboratory of Pharmaceutics and Biopharmaceutics, Université Libre de Bruxelles, Brussels, Belgium
| | - Matteo Riva
- Laboratory of Pediatric Immunology, Department of Immunology and Microbiology, KU Leuven University of Leuven, Leuven, Belgium; Department of Neurosurgery, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy
| | - Stefaan W Van Gool
- Laboratory of Pediatric Immunology, Department of Immunology and Microbiology, KU Leuven University of Leuven, Leuven, Belgium; Kinderklinik, RWTH, Aachen, Germany; Immunologic-Oncologic Centre Cologne (IOZK), Köln, Germany
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14
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Rodríguez ME, Cogno IS, Milla Sanabria LS, Morán YS, Rivarola VA. Heat shock proteins in the context of photodynamic therapy: autophagy, apoptosis and immunogenic cell death. Photochem Photobiol Sci 2016; 15:1090-1102. [DOI: 10.1039/c6pp00097e] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Heat shock proteins can mediate resistance to photodynamic therapy by inhibiting apoptosis and modulating autophagy which, in turn, prevents apoptosis and immunogenic cell death.
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Affiliation(s)
- Matías E. Rodríguez
- Departamento de Biología Molecular
- Universidad Nacional de Río Cuarto
- Río Cuarto (5800)
- Argentina
| | - Ingrid S. Cogno
- Departamento de Biología Molecular
- Universidad Nacional de Río Cuarto
- Río Cuarto (5800)
- Argentina
| | - Laura S. Milla Sanabria
- Departamento de Biología Molecular
- Universidad Nacional de Río Cuarto
- Río Cuarto (5800)
- Argentina
| | - Yanina S. Morán
- Departamento de Biología Molecular
- Universidad Nacional de Río Cuarto
- Río Cuarto (5800)
- Argentina
| | - Viviana A. Rivarola
- Departamento de Biología Molecular
- Universidad Nacional de Río Cuarto
- Río Cuarto (5800)
- Argentina
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15
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Shirmanova M, Yuzhakova D, Snopova L, Perelman G, Serebrovskaya E, Lukyanov K, Turchin I, Subochev P, Lukyanov S, Kamensky V, Zagaynova E. Towards PDT with Genetically Encoded Photosensitizer KillerRed: A Comparison of Continuous and Pulsed Laser Regimens in an Animal Tumor Model. PLoS One 2015; 10:e0144617. [PMID: 26657001 PMCID: PMC4686120 DOI: 10.1371/journal.pone.0144617] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 10/20/2015] [Indexed: 01/12/2023] Open
Abstract
The strong phototoxicity of the red fluorescent protein KillerRed allows it to be considered as a potential genetically encoded photosensitizer for the photodynamic therapy (PDT) of cancer. The advantages of KillerRed over chemical photosensitizers are its expression in tumor cells transduced with the appropriate gene and direct killing of cells through precise damage to any desired cell compartment. The ability of KillerRed to affect cell division and to induce cell death has already been demonstrated in cancer cell lines in vitro and HeLa tumor xenografts in vivo. However, the further development of this approach for PDT requires optimization of the method of treatment. In this study we tested the continuous wave (593 nm) and pulsed laser (584 nm, 10 Hz, 18 ns) modes to achieve an antitumor effect. The research was implemented on CT26 subcutaneous mouse tumors expressing KillerRed in fusion with histone H2B. The results showed that the pulsed mode provided a higher rate of photobleaching of KillerRed without any temperature increase on the tumor surface. PDT with the continuous wave laser was ineffective against CT26 tumors in mice, whereas the pulsed laser induced pronounced histopathological changes and inhibition of tumor growth. Therefore, we selected an effective regimen for PDT when using the genetically encoded photosensitizer KillerRed and pulsed laser irradiation.
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Affiliation(s)
- Marina Shirmanova
- Nizhny Novgorod State Medical Academy, Nizhny Novgorod, Russia
- * E-mail:
| | - Diana Yuzhakova
- Nizhny Novgorod State Medical Academy, Nizhny Novgorod, Russia
- Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Ludmila Snopova
- Nizhny Novgorod State Medical Academy, Nizhny Novgorod, Russia
| | - Gregory Perelman
- Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Ekaterina Serebrovskaya
- Nizhny Novgorod State Medical Academy, Nizhny Novgorod, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - Konstantin Lukyanov
- Nizhny Novgorod State Medical Academy, Nizhny Novgorod, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - Ilya Turchin
- Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia
| | - Pavel Subochev
- Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia
| | - Sergey Lukyanov
- Nizhny Novgorod State Medical Academy, Nizhny Novgorod, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - Vladislav Kamensky
- Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia
| | - Elena Zagaynova
- Nizhny Novgorod State Medical Academy, Nizhny Novgorod, Russia
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16
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Weijer R, Broekgaarden M, Kos M, van Vught R, Rauws EA, Breukink E, van Gulik TM, Storm G, Heger M. Enhancing photodynamic therapy of refractory solid cancers: Combining second-generation photosensitizers with multi-targeted liposomal delivery. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2015. [DOI: 10.1016/j.jphotochemrev.2015.05.002] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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17
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Panzarini E, Inguscio V, Fimia GM, Dini L. Rose Bengal acetate photodynamic therapy (RBAc-PDT) induces exposure and release of Damage-Associated Molecular Patterns (DAMPs) in human HeLa cells. PLoS One 2014; 9:e105778. [PMID: 25140900 PMCID: PMC4139382 DOI: 10.1371/journal.pone.0105778] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 07/21/2014] [Indexed: 02/01/2023] Open
Abstract
The new concept of Immunogenic Cell Death (ICD), associated with Damage Associated Molecular Patterns (DAMPs) exposure and/or release, is recently becoming very appealing in cancer treatment. In this context, PhotoDynamic Therapy (PDT) can give rise to ICD and to immune response upon dead cells removal. The list of PhotoSensitizers (PSs) able to induce ICD is still short and includes Photofrin, Hypericin, Foscan and 5-ALA. The goal of the present work was to investigate if Rose Bengal Acetate (RBAc), a powerful PS able to trigger apoptosis and autophagy, enables photosensitized HeLa cells to expose and/or release pivotal DAMPs, i.e. ATP, HSP70, HSP90, HMGB1, and calreticulin (CRT), that characterize ICD. We found that apoptotic HeLa cells after RBAc-PDT exposed and released, early after the treatment, high amount of ATP, HSP70, HSP90 and CRT; the latter was distributed on the cell surface as uneven patches and co-exposed with ERp57. Conversely, autophagic HeLa cells after RBAc-PDT exposed and released HSP70, HSP90 but not CRT and ATP. Exposure and release of HSP70 and HSP90 were always higher on apoptotic than on autophagic cells. HMGB1 was released concomitantly to secondary necrosis (24 h after RBAc-PDT). Phagocytosis assay suggests that CRT is involved in removal of RBAc-PDT generated apoptotic HeLa cells. Altogether, our data suggest that RBAc has all the prerequisites (i.e. exposure and/or release of ATP, CRT, HSP70 and HSP90), that must be verified in future vaccination experiments, to be considered a good PS candidate to ignite ICD. We also showed tha CRT is involved in the clearance of RBAc photokilled HeLa cells. Interestingly, RBAc-PDT is the first cancer PDT protocol able to induce the translocation of HSP90 and plasma membrane co-exposure of CRT with ERp57.
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Affiliation(s)
- Elisa Panzarini
- Department of Biological and Environmental Science and Technology (Di.S.Te.B.A.), University of Salento, Lecce, Italy
| | - Valentina Inguscio
- Department of Biological and Environmental Science and Technology (Di.S.Te.B.A.), University of Salento, Lecce, Italy
| | - Gian Maria Fimia
- Department of Biological and Environmental Science and Technology (Di.S.Te.B.A.), University of Salento, Lecce, Italy
- National Institute for Infectious Diseases IRCCS “L. Spallanzani,” Rome, Italy
| | - Luciana Dini
- Department of Biological and Environmental Science and Technology (Di.S.Te.B.A.), University of Salento, Lecce, Italy
- * E-mail:
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18
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Li Z, Agharkar P, Chen B. Therapeutic enhancement of vascular-targeted photodynamic therapy by inhibiting proteasomal function. Cancer Lett 2013; 339:128-34. [DOI: 10.1016/j.canlet.2013.07.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 07/02/2013] [Accepted: 07/10/2013] [Indexed: 10/26/2022]
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19
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Guzhova IV, Shevtsov MA, Abkin SV, Pankratova KM, Margulis BA. Intracellular and extracellular Hsp70 chaperone as a target for cancer therapy. Int J Hyperthermia 2013; 29:399-408. [DOI: 10.3109/02656736.2013.807439] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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20
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Immunocytochemical studies on the nuclear ubiquitous casein and cyclin-dependent kinases substrate following 5-aminolevulinicacid-mediated photodynamic therapy on MCF-7 cells. Photodiagnosis Photodyn Ther 2013; 10:518-25. [PMID: 24284105 DOI: 10.1016/j.pdpdt.2013.03.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 03/22/2013] [Accepted: 03/25/2013] [Indexed: 01/10/2023]
Abstract
BACKGROUND Recent data indicates that nuclear ubiquitous casein and cyclin-dependent kinases substrate (NUCKS) may play role in tumor growth. In present study authors examined whether photodynamic therapy with 5-aminolevulinic acid (5-ALA) induces NUCKS expression in breast cancer cell line, MCF-7. METHODS In the experiment concentration of 5-ALA was 6.5mM. Excitation wavelength was 630 ± 20 nm, total light dose of light 5 or 10 J/cm(2) and irradiance 60 mW/cm(2) was used. Cells were collected at established time points and Western blot and immunocytochemical studies were performed using antibody against NUCKS. RESULTS Studies proved strong cytotoxic effects in cells following PDT with 6.5mM of precursor and 10 J/cm(2). Western blot analysis revealed the strongest expression of NUCKS at 7h after PDT. At next time points, 18 and 24h, expression of NUCKS decreased and became similar to that of control group. Further immunocytochemical studies showed very strong expression of NUCKS following PDT with 5-ALA and light irradiation of 5 J/cm(2). Early, at 0 h, that expression was predominantly seen in nuclei, while at 7h expression of NUCKS was observed in disseminated manner within entire cells in both nuclei and cytoplasm, with prevalence of cytoplasmic staining. CONCLUSIONS Authors suggest that NUCKS is involved in cellular responses following PDT, and since parallel induction of NUCKS and proapoptotic marker Bax and inhibition of anti-apoptotic Bcl-2 was observed, this protein might also be involved in induction of apoptosis following PDT.
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21
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Panzarini E, Inguscio V, Dini L. Immunogenic cell death: can it be exploited in PhotoDynamic Therapy for cancer? BIOMED RESEARCH INTERNATIONAL 2012; 2013:482160. [PMID: 23509727 PMCID: PMC3591131 DOI: 10.1155/2013/482160] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 09/18/2012] [Accepted: 10/01/2012] [Indexed: 12/22/2022]
Abstract
Immunogenic Cell Death (ICD) could represent the keystone in cancer management since tumor cell death induction is crucial as well as the control of cancer cells revival after neoplastic treatment. In this context, the immune system plays a fundamental role. The concept of Damage-Associated Molecular Patterns (DAMPs) has been proposed to explain the immunogenic potential of stressed or dying/dead cells. ICD relies on DAMPs released by or exposed on dying cells. Once released, DAMPs are sensed by immune cells, in particular Dendritic Cells (DCs), acting as activators of Antigen-Presenting Cells (APCs), that in turn stimulate both innate and adaptive immunity. On the other hand, by exposing DAMPs, dying cancer cells change their surface composition, recently indicated as vital for the stimulation of the host immune system and the control of residual ill cells. It is well established that PhotoDynamic Therapy (PDT) for cancer treatment ignites the immune system to elicit a specific antitumor immunity, probably linked to its ability in inducing exposure/release of certain DAMPs, as recently suggested. In the present paper, we discuss the DAMPs associated with PDT and their role in the crossroad between cancer cell death and immunogenicity in PDT.
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Affiliation(s)
| | | | - Luciana Dini
- Department of Biological and Environmental Science and Technology (Di.S.Te.B.A.), University of Salento, Via per Monteroni, 73100 Lecce, Italy
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22
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Gyenge EB, Lüscher D, Forny P, Antoniol M, Geisberger G, Walt H, Patzke G, Maake C. Photodynamic mechanisms induced by a combination of hypericin and a chlorin based-photosensitizer in head and neck squamous cell carcinoma cells. Photochem Photobiol 2012; 89:150-62. [PMID: 22882495 DOI: 10.1111/j.1751-1097.2012.01217.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 07/30/2012] [Accepted: 08/02/2012] [Indexed: 01/16/2023]
Abstract
The aim of this study was to elucidate photodynamic therapy (PDT) effects mediated by hypericin and a liposomal meso-tetrahydroxyphenyl chlorin (mTHPC) derivative, with focus on their 1:1 mixture, on head and neck squamous cell carcinoma cell lines. Absorption, excitation and photobleaching were monitored using fluorescence spectrometry, showing the same spectral patterns for the mixture as measured for single photosensitizers. In the mixture mTHPC showed a prolonged photo-stability. Singlet oxygen yield for light-activated mTHPC was Φ(Δ) = 0.66, for hypericin Φ(Δ) = 0.25 and for the mixture Φ(Δ) = ~0.4. A linear increase of singlet oxygen yield for mTHPC and the mixture was found, whereas hypericin achieved saturation after 35 min. Reactive oxygen species fluorescence was only visible after hypericin and mixture-induced PDT. Cell viability was also more affected with these two treatment options under the selected conditions. Examination of death pathways showed that hypericin-mediated cell death was apoptotic, with mTHPC necrotic and the 1:1 mixture showed features of both. Changes in gene expression after PDT indicated strong up-regulation of selected heat-shock proteins. The application of photosensitizer mixtures with the features of reduced dark toxicity and combined apoptotic and necrotic cell death may be beneficial in clinical PDT. This will be the focus of our future investigations.
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