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Korbelik M. Optimization of Whole Tumor Cell Vaccines by Interaction with Phagocytic Receptors. Vaccines (Basel) 2021; 9:vaccines9080904. [PMID: 34452029 PMCID: PMC8402491 DOI: 10.3390/vaccines9080904] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 08/11/2021] [Indexed: 11/16/2022] Open
Abstract
The principal event in the function of whole-cell cancer vaccines is the ingestion of vaccine-delivered tumor antigen-containing material, which is performed by the patient's antigen-presenting cells (APCs) through the employment of their phagocytic receptors. The goal of the present study was to identify the phagocytic receptors critical for the therapeutic efficacy of whole-cell cancer vaccines. The model of photodynamic therapy (PDT)-generated vaccines based on mouse SCCVII tumors was utilized, with in vitro expanded SCCVII cells treated by PDT serving as the vaccine material used for treating mice bearing established SCCVII tumors. The therapeutic impact, monitored as delayed progression of vaccinated tumors, was almost completely eliminated when antibodies specifically blocking the activity of LOX-1 scavenger receptor were administered to mice 30 min before vaccination. Similar, but much less pronounced, impacts were found with antibodies neutralizing the activity of CR3/CR4 receptors recognizing complement-opsonized vaccine cells, and with those blocking activating Fcγ receptors that recognized IgG antibody-based opsonins. A strikingly contrary action, a greatly enhanced tumor control by the vaccine, was found by blocking immune inhibitory receptor, FcγRIIB. The reported findings establish, therefore, an attractive strategy that can be effectively exploited for potent therapeutic enhancement of PDT-generated (and probably other) whole-cell tumor vaccines.
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Affiliation(s)
- Mladen Korbelik
- Department of Integrative Oncology, BC Cancer, Vancouver, BC V5Z 1L3, Canada
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2
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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: 175] [Impact Index Per Article: 35.0] [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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3
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Yang Y, Wang C, Zhuge Y, Zhang J, Xu K, Zhang Q, Zhang H, Chen H, Chu M, Jia C. Photodynamic Antifungal Activity of Hypocrellin A Against Candida albicans. Front Microbiol 2019; 10:1810. [PMID: 31447816 PMCID: PMC6691099 DOI: 10.3389/fmicb.2019.01810] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 07/23/2019] [Indexed: 12/22/2022] Open
Abstract
Many studies have reported that hypocrellin A (HA) exhibits effective antimicrobial activities with proper irradiation. However, its antifungal activity and the involved mechanism have not been fully defined. In this study, HA-mediated cytotoxicity in Candida albicans cells was evaluated after antimicrobial photodynamic therapy (aPDT). The results showed that 1.0 μg/ml HA significantly decreased the survival rate of C. albicans cells with light illumination. Moreover, the ROS levels were also remarkably elevated by HA. Further study found that HA combined with illumination led to cell membrane potential depolarization and cell membrane integrity damage. To investigate the form of cell death, a series of apoptosis-related parameters, including mitochondrial transmembrane potential, metacaspase activity, DNA fragmentation, nuclear condensation, and cytosolic and mitochondrial calcium, were analyzed. Data showed that all the above mentioned apoptosis hallmarks were affected after treatment with HA, indicating that HA induced C. albicans cell apoptosis. Finally, HA-mediated aPDT was demonstrated to be low-toxic and effective in treating cutaneous C. albicans infections. This study highlights the antifungal effect and mechanism of HA-mediated aPDT against C. albicans and provides a promising photodynamic antifungal candidate for C. albicans skin infections.
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Affiliation(s)
- Yijia Yang
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, China
| | - Chenglu Wang
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, China
| | - Yingzhi Zhuge
- Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Jian Zhang
- Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Ke Xu
- The Institute of Life Sciences, Wenzhou University, Wenzhou, China
| | - Qilu Zhang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Haijuan Zhang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Haiyan Chen
- The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, China
| | - Maoping Chu
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, China
| | - Chang Jia
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, China
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4
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Mastrangelopoulou M, Grigalavicius M, Berg K, Ménard M, Theodossiou TA. Cytotoxic and Photocytotoxic Effects of Cercosporin on Human Tumor Cell Lines. Photochem Photobiol 2018; 95:387-396. [PMID: 30107033 DOI: 10.1111/php.12997] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 08/02/2018] [Indexed: 01/14/2023]
Abstract
Cercosporin is a naturally occurring perylenequinone. Although other perylenequinones have been extensively studied as photosensitizers in photodynamic therapy of cancer (PDT), cercosporin has been studied in this light only within the remits of phytopathology. Herein, we investigated the photocytotoxicity of cercosporin against two glioblastoma multiforme (T98G and U87) and one breast adenocarcinoma (MCF7) human cell lines. Cercosporin was found to be a potent singlet oxygen producer upon 532 nm excitation, while its cell loading was similar for MCF7 and U87, but approximately threefold higher for T98G cells. The subcellular localization of cercosporin was in all cases in both mitochondria and the endoplasmic reticulum. Light irradiation of cercosporin-incubated cells around 450 nm showed that T98G cells were more susceptible to cercosporin PDT, mainly due to their higher cercosporin uptake. Metabolic studies before and 1 h following cercosporin PDT showed that cercosporin PDT instigated a bioenergetic collapse in both the respiratory and glycolytic activities of all cell lines. In the dark, cercosporin exhibited a synergistic cytotoxicity with copper only in the most respiratory cell lines (MCF7 and T98G). Cercosporin is a potent photosensitizer, but with a short activation wavelength, mostly suitable for superficial PDT treatments, especially when it is necessary to avoid perforations.
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Affiliation(s)
- Maria Mastrangelopoulou
- Department of Radiation Biology, Institute of Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Mantas Grigalavicius
- Department of Radiation Biology, Institute of Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Kristian Berg
- Department of Radiation Biology, Institute of Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Mathilde Ménard
- Department of Radiation Biology, Institute of Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Theodossis A Theodossiou
- Department of Radiation Biology, Institute of Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
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5
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Korbelik M, Hamblin MR. The impact of macrophage-cancer cell interaction on the efficacy of photodynamic therapy. Photochem Photobiol Sci 2015; 14:1403-9. [PMID: 25620672 DOI: 10.1039/c4pp00451e] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Macrophages are one of the principal host cell populations in solid tumors. They are capable, due to their plasticity, of acquiring phenotypes that either combat (M1 type) or promote (M2 type) neoplastic growth. These cells, known as tumor-associated macrophages (TAMs), play complex but pivotal roles in the outcome of photodynamic therapy (PDT) of malignant lesions. Among the various parenchymal and stromal cell populations found in tumors, TAMs have been shown to have the greatest capacity for the uptake of systemically administered photosensitizers. Both the tumor-localizing property of photosensitizers and their tumor-localized fluorescence could be partly attributed to the activity of TAMs. Since resident TAMs with accumulated high photosensitizer content will sustain high degrees of PDT damage, this population (predominantly M2 in most tumors) is selectively destroyed, and during the ensuing inflammatory reaction is replaced with newly invading macrophages of M1 phenotype. These macrophages are sentinels responding to DAMP signals from PDT-treated tumor cells and in turn are mobilized to generate a variety of inflammatory/immune mediators and opsonins. They have a critical role in contributing to the therapeutic effect of PDT by mediating disposal of killed cancer cells and by processing/presenting tumor antigens to T lymphocytes. However, TAMs accumulating in the later post-PDT phase can acquire the M2 (healing) phenotype, and could have a role in tumor recurrence by releasing factors that promote angiogenesis and the survival/proliferation of remaining cancer cells. Various therapeutic strategies modulating TAM activity in the PDT response have potential for clinical use for improving PDT-mediated tumor control.
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Friedberg JS. Intraoperative photodynamic therapy for malignant pleural mesothelioma: future or fad? Lung Cancer Manag 2013. [DOI: 10.2217/lmt.13.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
SUMMARY Malignant pleural mesothelioma is one of the most lethal cancers known to man, typically resulting in a life expectancy of approximately 1 year from the time of diagnosis. Surgery remains investigational in the treatment of this cancer, yet the treatments that appear to have the greatest potential to impact the course of the disease are those that are surgery-based. The goal of surgery, as part of a multimodal treatment plan, is to achieve a macroscopic complete resection of the cancer. There are two surgical approaches, extrapleural pneumonectomy and lung-sparing surgery. Extrapleural pneumonectomy is the most standardized approach and almost certainly achieves the most complete resection, leaving behind the least amount of microscopic disease. Essentially, no aspects of lung-sparing operations are standardized and all techniques are likely to leave behind more microscopic cancer than an extrapleural pneumonectomy, yet this approach has the principal advantage of avoiding pneumonectomy for what is rightfully considered a palliative procedure. There are some recent reports revealing more favorable survivals for patients undergoing lung-sparing rather than lung-sacrificing surgery, but there is no conclusive evidence favoring either approach due to general limitations in the surgical literature for malignant pleural mesothelioma. One multimodal approach that has produced notably long survival rates incorporated radical pleurectomy and adjuvant chemotherapy with intraoperative photodynamic therapy, a light-based cancer treatment. There is speculation that a photodynamic therapy-initiated immune response may have played a role in these results, but this has not been established. The contribution, if any, of photodynamic therapy to these results is an area of active investigation.
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Affiliation(s)
- Joseph S Friedberg
- University of Pennsylvania, W266 Wright-Saunders, 51 North 39th Street, Philadelphia, PA 19104, USA
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Kushibiki T, Hirasawa T, Okawa S, Ishihara M. Responses of Cancer Cells Induced by Photodynamic Therapy. JOURNAL OF HEALTHCARE ENGINEERING 2013; 4:87-108. [DOI: 10.1260/2040-2295.4.1.87] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Photo-killing mechanism of 2-demethoxy-2,3-ethylenediamino hypocrellin B (EDAHB) to HeLa cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2012; 117:47-54. [DOI: 10.1016/j.jphotobiol.2012.08.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 08/24/2012] [Accepted: 08/25/2012] [Indexed: 11/21/2022]
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9
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Zhou Z, Zhao C, Liu W, Li Q, Zhang L, Sheng W, Li Z, Zeng Y, Zhong R. Involvement of the mitochondria-caspase pathway in HeLa cell death induced by 2-ethanolamino-2-demethoxy-17-ethanolimino-hypocrellin B (EAHB)-mediated photodynamic therapy. Int J Toxicol 2012; 31:483-92. [PMID: 23008347 DOI: 10.1177/1091581812460696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In order to elucidate the mechanism of cytotoxicity photoinduced by 2-ethanolamino-2-demethoxy-17-ethanolimino-hypocrellin B (EAHB), a derivative of hypocrellin B (HB), cellular uptake, subcellular localization as well as photodynamic therapy (PDT) efficiency of EAHB, and cell apoptosis photoinduced by EAHB were investigated in HeLa cells by laser confocal fluorescence microscopy, 3-(4,5-Dimethylthiazol-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide assay, flow cytometry, DNA fragmentation on agarose gel, and Western blot. The results showed EAHB was distributed throughout the cytoplasm of the cell, with no detectable penetration into the nucleus. The proportion of dead cells increased with increases in both the dosage of light and the concentration of EAHB. Its phototoxicity to HeLa cells proceeded via apoptosis. The EAHB-PDT treatment induced a cytochrome c release from the mitochondria into the cytosol followed by the activation of both caspase 3 and caspase 9 in HeLa cells. The results suggested that EAHB-PDT treatment induced apoptosis in HeLa cells, and the cellular apoptosis involved a mitochondria-/caspase-dependent mechanism.
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Affiliation(s)
- Zhixiang Zhou
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing 100124, China.
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10
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Korbelik M, Merchant S. Photodynamic therapy-generated cancer vaccine elicits acute phase and hormonal response in treated mice. Cancer Immunol Immunother 2012; 61:1387-94. [PMID: 22270715 PMCID: PMC11029775 DOI: 10.1007/s00262-012-1206-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Accepted: 01/12/2012] [Indexed: 12/25/2022]
Abstract
Photodynamic therapy (PDT)-generated cancer vaccines have shown promising results in preclinical studies and are being introduced in the clinics. Using an SCCVII mouse squamous cell carcinoma-based whole-cell autologous PDT vaccine model developed in our previous work, we have examined systemic effects in vaccinated mice that could be related to the induction of acute phase response. The upregulation of gene encoding serum amyloid P component (prototypic mouse acute phase reactant) was detected in the liver and to a lesser degree in the tumor of vaccinated mice at 24 h post-PDT vaccine treatment. A strong upregulation of gene for heat shock protein 70 was found in both the liver and tumor of mice at 4 h after their PDT vaccine treatment. Changes in the expression of genes for glucocorticoid-induced leucine zipper and serum- and glucocorticoid-regulated kinase 1 that are highly responsive to glucocorticoid modulation were uncovered in both the tumor and liver of vaccinated mice. A rise in the levels of serum corticosterone was detected in mice at 24 h after PDT vaccine treatment. The results indicate that a sudden appearance of a large number of PDT vaccine cells elicits host responses for securing their optimized clearance, which in addition to producing seminal acute phase reactants includes the engagement of glucocorticoid hormones. It is becoming increasingly clear that a consummate execution of this process of PDT vaccine cell removal is critical for tumor antigen recognition and the attainment of potent antitumor immune response.
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Affiliation(s)
- Mladen Korbelik
- British Columbia Cancer Agency, BC Cancer Research Centre, 675 West 10th Avenue, Vancouver, BC V5Z 1L3, Canada.
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11
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Korbelik M, Madiyalakan R, Woo T, Haddadi A. Antitumor Efficacy of Photodynamic Therapy Using Novel Nanoformulations of Hypocrellin Photosensitizer SL052. Photochem Photobiol 2011; 88:188-93. [DOI: 10.1111/j.1751-1097.2011.01035.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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12
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Friedberg JS. Photodynamic therapy for malignant pleural mesothelioma: the future of treatment? Expert Rev Respir Med 2011; 5:49-63. [PMID: 21348586 DOI: 10.1586/ers.11.1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Malignant pleural mesothelioma is a deadly incurable cancer, with a median survival of approximately 9 months. The best available chemotherapy, arguably the standard of care, only yields a 40% response rate and an 11-week extension in median survival. Surgery, the modality most likely to be associated with prolonged remission, remains investigational and must always be combined with other modalities in an effort to treat the microscopic disease that will remain even after the most aggressive operations. One such modality, photodynamic therapy, is a light-based cancer treatment that has features making it particularly well suited as a component of a surgery-based multimodal treatment plan. Utilizing intraoperative photodynamic therapy has enabled development of a less drastic surgical procedure that is also yielding some encouraging survival results. A unique aspect of photodynamic therapy is its stimulation of a tumor-directed immune response, a feature that offers promise for designing future treatments.
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Affiliation(s)
- Joseph S Friedberg
- Division of Thoracic Surgery, University of Pennsylvania School of Medicine, Penn-Presbyterian Medical Center, 51 N 39th Street, Philadelphia, PA 19104, USA.
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Agostinis P, Berg K, Cengel KA, Foster TH, Girotti AW, Gollnick SO, Hahn SM, Hamblin MR, Juzeniene A, Kessel D, Korbelik M, Moan J, Mroz P, Nowis D, Piette J, Wilson BC, Golab J. Photodynamic therapy of cancer: an update. CA Cancer J Clin 2011; 61:250-81. [PMID: 21617154 PMCID: PMC3209659 DOI: 10.3322/caac.20114] [Citation(s) in RCA: 3226] [Impact Index Per Article: 248.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Photodynamic therapy (PDT) is a clinically approved, minimally invasive therapeutic procedure that can exert a selective cytotoxic activity toward malignant cells. The procedure involves administration of a photosensitizing agent followed by irradiation at a wavelength corresponding to an absorbance band of the sensitizer. In the presence of oxygen, a series of events lead to direct tumor cell death, damage to the microvasculature, and induction of a local inflammatory reaction. Clinical studies revealed that PDT can be curative, particularly in early stage tumors. It can prolong survival in patients with inoperable cancers and significantly improve quality of life. Minimal normal tissue toxicity, negligible systemic effects, greatly reduced long-term morbidity, lack of intrinsic or acquired resistance mechanisms, and excellent cosmetic as well as organ function-sparing effects of this treatment make it a valuable therapeutic option for combination treatments. With a number of recent technological improvements, PDT has the potential to become integrated into the mainstream of cancer treatment.
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Affiliation(s)
- Patrizia Agostinis
- Department of Molecular Cell Biology, Cell Death Research & Therapy Laboratory, Catholic University of Leuven, B-3000 Leuven, Belgium,
| | - Kristian Berg
- Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, N-0310 Oslo, Norway, ;
| | - Keith A. Cengel
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA 19004, USA, ;
| | - Thomas H. Foster
- Department of Imaging Sciences, University of Rochester, Rochester, NY 14642, USA,
| | - Albert W. Girotti
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, 53226-3548, USA,
| | - Sandra O. Gollnick
- Department of Cell Stress Biology, Roswell Park Cancer Institute, Elm and Carlton Sts, Buffalo, NY, 14263, USA,
| | - Stephen M. Hahn
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA 19004, USA, ;
| | - Michael R. Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114-2696, USA, ;
- Department of Dermatology, Harvard Medical School, Boston MA 02115
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Asta Juzeniene
- Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, N-0310 Oslo, Norway, ;
| | - David Kessel
- Department of Pharmacology, Wayne State University School of Medicine, Detroit MI 48201, USA,
| | | | - Johan Moan
- Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, N-0310 Oslo, Norway, ;
- Institute of Physics, University of Oslo, Blindern 0316 Oslo, Norway;
| | - Pawel Mroz
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114-2696, USA, ;
- Department of Dermatology, Harvard Medical School, Boston MA 02115
| | - Dominika Nowis
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Poland, ;
| | - Jacques Piette
- GIGA-Research, Laboratory of Virology & Immunology, University of Liège, B-4000 Liège Belgium,
| | - Brian C. Wilson
- Ontario Cancer Institute/University of Toronto, Toronto, ON M5G 2M9, Canada,
| | - Jakub Golab
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Poland, ;
- Institute of Physical Chemistry, Polish Academy of Sciences, Department 3, Warsaw, Poland
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Abstract
The development of photodynamic therapy (PDT)-generated cancer vaccines is potentially one of the most significant achievements in the field of PDT. Employing vaccine protocols optimizes the capacity of PDT of inducing a strong immune response against treated tumor due to the establishment of highly favourable conditions for maximizing the avidity of the immune reaction while sustaining and prolonging its tumor-destroying attack. While the introduction of PDT vaccines into the clinics and testing on patients is still in a very early phase, much work can still be done on further improvement of the potency of PDT vaccines. Considerable advances can be expected by identifying the most effective adjuvants to be used with PDT vaccines, which will most likely be different with different types of cancerous lesions.
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Meng Y, Zou C, Madiyalakan R, Woo T, Huang M, Yang X, Swanson E, Chen J, Xing JZ. Water-soluble and biocompatible sono/photosensitizer nanoparticles for enhanced cancer therapy. Nanomedicine (Lond) 2010; 5:1559-69. [DOI: 10.2217/nnm.10.91] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aims: Most sono/photosensitizers of cancer sonodynamic/photodynamic therapy (SDT/PDT), such as hypocrellin SL052, are water-insoluble, therefore restricting their clinical applications. In this article, we present a water-soluble nanocarrier to load the SDT/PDT sensitizer SL052 with improved pharmacokinetics and therapeutic efficacy. Materials & methods: Nanoclusters of polyvinylpyrrolidones with SL052 formed water-soluble nanoparticles (SL052-NPs) while retaining the chemical structure of SL052. Results: The experimental results show that SL052-NPs improve the drug’s physicochemical properties and significantly enhance the efficacy of SL052 in terms of pharmacokinetics and cancer killing. Water-soluble SL052-NPs can be used to deliver the drug to deep cancer tissues. A potential benefit of SL052-NPs is that polyvinylpyrrolidones can help SL052 evade the reticuloendothelial system, thereby increasing circulation half-life and improving drug biodistribution. Conclusion: SL052-NPs greatly improved the physicochemical properties of SL052 without modifying its chemical structure, allowing for deep-site cancer drug delivery, imaging for diagnosis, and ultrasound or photocontrolled localized cancer therapy.
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Affiliation(s)
- Yongde Meng
- Department of Biomedical Engineering, University of Alberta, Edmonton, AB, Canada
| | - Chunpu Zou
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | | | - Thomas Woo
- Quest PharmaTech Inc., Edmonton, AB, Canada
| | - Min Huang
- Department of Biomedical Engineering, University of Alberta, Edmonton, AB, Canada
| | - Xiaoyan Yang
- Department of Biomedical Engineering, University of Alberta, Edmonton, AB, Canada
| | - Eric Swanson
- IRAP, National Research Council, Edmonton, AB, Canada
| | - Jie Chen
- Department of Biomedical Engineering, University of Alberta, Edmonton, AB, Canada
| | - James Z Xing
- Department of Radiation Oncology, Cross Cancer Institute, 11560 University Avenue, Edmonton, AB, T6G 1Z2, Canada
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Expression of complement and pentraxin proteins in acute phase response elicited by tumor photodynamic therapy: The engagement of adrenal hormones. Int Immunopharmacol 2010; 10:1595-601. [DOI: 10.1016/j.intimp.2010.09.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2010] [Revised: 09/04/2010] [Accepted: 09/22/2010] [Indexed: 11/22/2022]
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17
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Barnes LD, Giuliano EA, Ota J. Cellular localization of Visudyne as a function of time after local injection in an in vivo model of squamous cell carcinoma: an investigation into tumor cell death. Vet Ophthalmol 2010; 13:158-65. [PMID: 20500715 DOI: 10.1111/j.1463-5224.2010.00775.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To evaluate the effects of time on cellular localization of Visudyne after local injection. ANIMALS Twenty athymic nude mice. PROCEDURES A squamous cell carcinoma (SCC) cell line (A-431) was injected into right and left dorsolumbar subcutaneous tissue of each mouse, representing treatment (T) and control (C) tumors. In experiment 1 (Exp 1; n = 10) and 2 (Exp 2; n = 10), the T tumors received a local injection of Visudyne (0.1 mg/cm(3)), and C tumors received an equal dose of 5% dextrose in water (D5W). Mice were randomly subdivided into two groups (A and B; n = 5 per group). Mice in Exp 1A and B were sacrificed 1 and 30 min after local injection, respectively. Experiment 1A and B tumors were evaluated by fluorescence microscopy to determine drug localization. Experiment 2A and B tumors were exposed to LED illumination 1 and 30 min after injection, respectively, and evaluated by transmission electron microscopy (TEM) to determine ultrastructural tumor cell damage. RESULTS Fluorescence was detected within the cytoplasm of T tumors in both Exp 1A and B. Significance was detected in fluorescence intensity between T1 min vs. T30 min (P = 0.03) and between T1 min and C1 min tumors (P = 0.01), respectively. Tumors in Exp 2A and B demonstrated evidence of apoptotic cell death. CONCLUSIONS Fluorescence microscopy demonstrated higher Visudyne concentration within SCC cytoplasm of 1 min compared with 30-min tumors. Transmission electron microscopy results revealed that tumors treated by photodynamic therapy (PDT) within 30 min of local injection undergo cellular apoptosis.
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Affiliation(s)
- Laura D Barnes
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, 900 East Campus Drive, Columbia, MO 65211, USA
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