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Oxidative Stress-Inducing Anticancer Therapies: Taking a Closer Look at Their Immunomodulating Effects. Antioxidants (Basel) 2020; 9:antiox9121188. [PMID: 33260826 PMCID: PMC7759788 DOI: 10.3390/antiox9121188] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/19/2020] [Accepted: 11/25/2020] [Indexed: 02/06/2023] Open
Abstract
Cancer cells are characterized by higher levels of reactive oxygen species (ROS) compared to normal cells as a result of an imbalance between oxidants and antioxidants. However, cancer cells maintain their redox balance due to their high antioxidant capacity. Recently, a high level of oxidative stress is considered a novel target for anticancer therapy. This can be induced by increasing exogenous ROS and/or inhibiting the endogenous protective antioxidant system. Additionally, the immune system has been shown to be a significant ally in the fight against cancer. Since ROS levels are important to modulate the antitumor immune response, it is essential to consider the effects of oxidative stress-inducing treatments on this response. In this review, we provide an overview of the mechanistic cellular responses of cancer cells towards exogenous and endogenous ROS-inducing treatments, as well as the indirect and direct antitumoral immune effects, which can be both immunostimulatory and/or immunosuppressive. For future perspectives, there is a clear need for comprehensive investigations of different oxidative stress-inducing treatment strategies and their specific immunomodulating effects, since the effects cannot be generalized over different treatment modalities. It is essential to elucidate all these underlying immune effects to make oxidative stress-inducing treatments effective anticancer therapy.
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An YW, Liu HQ, Zhou ZQ, Wang JC, Jiang GY, Li ZW, Wang F, Jin HT. Sinoporphyrin sodium is a promising sensitizer for photodynamic and sonodynamic therapy in glioma. Oncol Rep 2020; 44:1596-1604. [PMID: 32945475 PMCID: PMC7448408 DOI: 10.3892/or.2020.7695] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 06/24/2020] [Indexed: 02/06/2023] Open
Abstract
The aim of the present study was to explore the antitumor effects of sinoporphyrin sodium (DVDMS)‑mediated photodynamic therapy (PDT) and sonodynamic therapy (SDT) in glioma, and to reveal the underlying mechanisms. The uptake of DVDMS by U‑118 MG cells was detected by flow cytometry (FCM). A 630‑nm semiconductor laser and 1‑MHz ultrasound were used to perform PDT and SDT, respectively. Cell proliferation and apoptosis were evaluated using the Cell Counting Kit‑8 assay, FCM and Hoechst 33258 staining, respectively. Western blot analysis was used to detect protein expression and phosphorylation levels. BALB/c nude mice were used to establish a xenograft model of U‑118 MG cells. DVDMS was injected intravenously and PDT and SDT were performed 24 h later. An in vivo imaging system was used to evaluate the fluorescence of DVDMS, to measure tumor sizes, and to evaluate the therapeutic effects. The uptake of DVDMS by U‑118 MG cells was optimal after 4 h. PDT and SDT following DVDMS injection significantly inhibited the proliferation and increased apoptosis of glioma cells in vitro (P<0.05, P<0.01) respectively. In vivo, the fluorescence intensity of DVDMS was lower in the PDT and SDT groups compared with the DVDMS group, while tumor cell proliferation and weight were lower in the PDT and SDT groups than in the control group (P<0.05, P<0.01). However, there was no significant difference when laser, ultrasound or DVDMS were applied individually, compared with the control group. Hematoxylin and eosin staining suggested that both PDT and SDT induced significant apoptosis and vascular obstruction in cancer tissues. DVDMS‑mediated PDT and SDT inhibited the expression levels of proliferating cell nuclear antigen (PCNA) and Bcl‑xL, increased cleaved ‑caspase 3 levels, and decreased the protein phosphorylation of the PI3K/AKT/mTOR signaling pathway. Changes in the expression of PCNA, and Bcl‑xL and in the levels of cleaved‑caspase 3 were partly reversed by N‑acetyl‑L‑cysteine, a reactive oxygen species (ROS) scavenger. Similar results were obtained with FCM. DVDMS‑mediated PDT and SDT inhibited glioma cell proliferation and induced cell apoptosis in vitro and in vivo, potentially by increasing the generation of ROS and affecting protein expression and phosphorylation levels.
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Affiliation(s)
- Ya-Wen An
- School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, Guangdong 518055, P.R. China
- Science and Education Department, Shenzhen Samii Medical Center, Shenzhen, Guangdong 518118, P.R. China
| | - Han-Qing Liu
- Science and Education Department, Shenzhen Samii Medical Center, Shenzhen, Guangdong 518118, P.R. China
- Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Zi-Qian Zhou
- Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Jian-Chun Wang
- Science and Education Department, Shenzhen Samii Medical Center, Shenzhen, Guangdong 518118, P.R. China
| | - Guang-Yu Jiang
- Science and Education Department, Shenzhen Samii Medical Center, Shenzhen, Guangdong 518118, P.R. China
| | - Zhi-Wen Li
- Science and Education Department, Shenzhen Samii Medical Center, Shenzhen, Guangdong 518118, P.R. China
| | - Feng Wang
- Henan Key Laboratory of Medical Tissue Regeneration, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453002, P.R. China
| | - Hong-Tao Jin
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P.R. China
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Muniyandi K, George B, Parimelazhagan T, Abrahamse H. Role of Photoactive Phytocompounds in Photodynamic Therapy of Cancer. Molecules 2020; 25:E4102. [PMID: 32911753 PMCID: PMC7570746 DOI: 10.3390/molecules25184102] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/26/2020] [Accepted: 09/04/2020] [Indexed: 01/10/2023] Open
Abstract
Cancer is one of the greatest life-threatening diseases conventionally treated using chemo- and radio-therapy. Photodynamic therapy (PDT) is a promising approach to eradicate different types of cancers. PDT requires the administration of photosensitisers (PSs) and photoactivation using a specific wavelength of light in the presence of molecular oxygen. This photoactivation exerts an anticancer effect via apoptosis, necrosis, and autophagy of cancer cells. Recently, various natural compounds that exhibit photosensitising potentials have been identified. Photoactive substances derived from medicinal plants have been found to be safe in comparison with synthetic compounds. Many articles have focused on PDT mechanisms and types of PSs, but limited attention has been paid to the phototoxic activities of phytocompounds. The reduced toxicity and side effects of natural compounds inspire the researchers to identify and use plant extracts or phytocompounds as a potent natural PS candidate for PDT. This review focusses on the importance of common photoactive groups (furanocoumarins, polyacetylenes, thiophenes, curcumins, alkaloids, and anthraquinones), their phototoxic effects, anticancer activity and use as a potent PS for an effective PDT outcome in the treatment of various cancers.
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Affiliation(s)
- Kasipandi Muniyandi
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, 17011, Doornfontein 2028, South Africa; (K.M.); (B.G.)
- Bioprospecting Laboratory, Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu 641046, India;
| | - Blassan George
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, 17011, Doornfontein 2028, South Africa; (K.M.); (B.G.)
| | - Thangaraj Parimelazhagan
- Bioprospecting Laboratory, Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu 641046, India;
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, 17011, Doornfontein 2028, South Africa; (K.M.); (B.G.)
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Kessel D. Photodynamic therapy: apoptosis, paraptosis and beyond. Apoptosis 2020; 25:611-615. [DOI: 10.1007/s10495-020-01634-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2020] [Indexed: 11/30/2022]
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Hansda S, Ghosh G, Ghosh R. 9-phenyl acridine photosensitizes A375 cells to UVA radiation. Heliyon 2020; 6:e04733. [PMID: 32944667 PMCID: PMC7481570 DOI: 10.1016/j.heliyon.2020.e04733] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/29/2020] [Accepted: 08/12/2020] [Indexed: 01/10/2023] Open
Abstract
Acridines are an important class of bioactive molecules having varied uses. Its derivative, 9-phenylacridine (ACPH) had been found to exhibit antitumor activity both in cell lines and in vivo model. Its DNA binding ability and absorbance in the ultraviolet range encouraged us to investigate its role as a photosensitizer with UVA radiation. We investigated the effects of ACPH prior to UVA exposure on in vitro DNA through photo-cleavage assay. Effect of such treatment was also studied in cultured A375 melanoma cells. Endpoints studied included morphological changes, evaluation of cellular viability, scratch assay, intracellular reactive oxygen species (ROS) production, DNA damage, lipid peroxidation, glutathione (GSH) level, autophagy, cell cycle progression, depletion of mitochondrial membrane potential (ΔΨmt), induction of apoptosis and Hoechst dye efflux assay. Our findings indicated that ACPH could sensitize damage to DNA induced by UVA both in vitro and in cells. It could also potentiate cell killing by UVA. It arrested cells in G2/M phase and induced apoptotic death through mitochondria mediated pathway. This sensitization was through enhancement of intracellular ROS. Our findings also indicated that the stem cells side population was reduced on such treatment. The findings are important as it indicates ACPH as a promising photosensitizer and indicates its possible role in photodynamic therapy.
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Affiliation(s)
- Surajit Hansda
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani, 741235, West Bengal, India
| | - Gargi Ghosh
- Department of Molecular Biology & Biotechnology, University of Kalyani, Kalyani, 741235, West Bengal, India
| | - Rita Ghosh
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani, 741235, West Bengal, India
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Deng Y, Song P, Chen X, Huang Y, Hong L, Jin Q, Ji J. 3-Bromopyruvate-Conjugated Nanoplatform-Induced Pro-Death Autophagy for Enhanced Photodynamic Therapy against Hypoxic Tumor. ACS NANO 2020; 14:9711-9727. [PMID: 32806075 DOI: 10.1021/acsnano.0c01350] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Autophagy triggered by reactive oxygen species (ROS) in photodynamic therapy (PDT) generally exhibits an anti-apoptotic effect to promote cell survival. Herein, an innovative supramolecular nanoplatform was fabricated for enhanced PDT by converting the role of autophagy from pro-survival to pro-death. The respiration inhibitor 3-bromopyruvate (3BP), which can act as an autophagy promoter and hypoxia ameliorator, was integrated into photosensitizer chlorin e6 (Ce6)-encapsulated nanoparticles to combat hypoxic tumor. 3BP could inhibit respiration by down-regulating HK-II and GAPDH expression to significantly reduce intracellular oxygen consumption rate, which could relieve tumor hypoxia for enhanced photodynamic cancer therapy. More importantly, the autophagy level was significantly elevated by the combination of 3BP and PDT determined by Western blot, immunofluorescent imaging, and transmission electron microscopy. It was very surprising that excessively activated autophagy promoted cell apoptosis, leading to the changeover of autophagy from pro-survival to pro-death. Therefore, PDT combined with 3BP could achieve efficient cell proliferation inhibition and tumor regression. Furthermore, hypoxia-inducible factor-1α (HIF-1α) could be down-regulated after tumor hypoxia was relieved by 3BP. Tumor metastasis could then be effectively inhibited by eliminating primary tumors and down-regulating HIF-1α expression. These results provide an inspiration for future innovative approaches of cancer therapy by triggering pro-death autophagy.
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Affiliation(s)
- Yongyan Deng
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Pengyu Song
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Xiaohui Chen
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Yue Huang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Liangjie Hong
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Qiao Jin
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
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Montaseri H, Kruger CA, Abrahamse H. Review: Organic nanoparticle based active targeting for photodynamic therapy treatment of breast cancer cells. Oncotarget 2020; 11:2120-2136. [PMID: 32547709 PMCID: PMC7275783 DOI: 10.18632/oncotarget.27596] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 04/27/2020] [Indexed: 12/27/2022] Open
Abstract
Targeted Photodynamic therapy (TPDT) is a non-invasive and site-specific treatment modality, which has been utilized to eradicate cancer tumour cells with photoactivated chemicals or photosensitizers (PSs), in the presence of laser light irradiation and molecular tissue oxygen. Breast cancer is the commonest cancer among women worldwide and is currently treated using conventional methods such as chemotherapy, radiotherapy and surgery. Despite the recent advancements made in PDT, poor water solubility and non-specificity of PSs, often affect the overall effectivity of this unconventional cancer treatment. With respect to conventional PS obstacles, great strides have been made towards the application of targeted nanoparticles in PDT to resolve these limitations. Therefore, this review provides an overview of scientific peer reviewed published studies in relation to functionalized organic nanoparticles (NPs) for effective TPDT treatment of breast cancer over the last 10 years (2009 to 2019). The main aim of this review is to highlight the importance of organic NP active based PDT targeted drug delivery systems, to improve the overall biodistribution of PSs in breast cancer tumour's.
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Affiliation(s)
- Hanieh Montaseri
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Doornfontein 2028, South Africa
| | - Cherie Ann Kruger
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Doornfontein 2028, South Africa
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Doornfontein 2028, South Africa
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58
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Teng X, Li F, Lu C, Li B. Carbon dot-assisted luminescence of singlet oxygen: the generation dynamics but not the cumulative amount of singlet oxygen is responsible for the photodynamic therapy efficacy. NANOSCALE HORIZONS 2020; 5:978-985. [PMID: 32314991 DOI: 10.1039/d0nh00128g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A novel carbon dot-based luminescence probe for singlet oxygen (1O2) with a conventional optical detector has been implemented through the specific formation of electronically excited carbonyls from the breakdown of unstable endoperoxide intermediates, and its application in the real-time in vivo monitoring of 1O2 in photodynamic therapy (PDT) is achieved. More attractively, the relationship between the dynamics details of photosensitizer-generated 1O2 and the PDT efficacy has been established through a modified multiple-target survival model, enabling a direct and easy estimate of the surviving fraction of tumor cells from the generation dynamics of 1O2. Both in vitro and in vivo therapy results revealed that the rapid generation dynamics of 1O2 rather than its cumulative amount is responsible for better treatment efficacy in PDT. Overall, the deeper insight into the important roles of the generation dynamics of 1O2 in the PDT efficacy is irreplaceably advantageous in substantially reduced risks from deleterious treatment-related side effects by screening advanced photosensitizers and determining the light exposure end point.
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Affiliation(s)
- Xu Teng
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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59
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Perini G, Palmieri V, Ciasca G, De Spirito M, Papi M. Unravelling the Potential of Graphene Quantum Dots in Biomedicine and Neuroscience. Int J Mol Sci 2020; 21:E3712. [PMID: 32466154 PMCID: PMC7279214 DOI: 10.3390/ijms21103712] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/22/2020] [Accepted: 05/22/2020] [Indexed: 02/07/2023] Open
Abstract
Quantum dots (QDs) are semiconducting nanoparticles that have been gaining ground in various applications, including the biomedical field, thanks to their unique optical properties. Recently, graphene quantum dots (GQDs) have earned attention in biomedicine and nanomedicine, thanks to their higher biocompatibility and low cytotoxicity compared to other QDs. GQDs share the optical properties of QD and have proven ability to cross the blood-brain barrier (BBB). For this reason, GQDs are now being employed to deepen our knowledge in neuroscience diagnostics and therapeutics. Their size and surface chemistry that ease the loading of chemotherapeutic drugs, makes them ideal drug delivery systems through the bloodstream, across the BBB, up to the brain. GQDs-based neuroimaging techniques and theranostic applications, such as photothermal and photodynamic therapy alone or in combination with chemotherapy, have been designed. In this review, optical properties and biocompatibility of GQDs will be described. Then, the ability of GQDs to overtake the BBB and reach the brain will be discussed. At last, applications of GQDs in bioimaging, photophysical therapies and drug delivery to the central nervous system will be considered, unraveling their potential in the neuroscientific field.
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Affiliation(s)
- Giordano Perini
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168 Roma, Italy; (G.P.); (G.C.); (M.D.S.)
- Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168 Roma, Italy
| | - Valentina Palmieri
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168 Roma, Italy; (G.P.); (G.C.); (M.D.S.)
- Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168 Roma, Italy
| | - Gabriele Ciasca
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168 Roma, Italy; (G.P.); (G.C.); (M.D.S.)
- Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168 Roma, Italy
| | - Marco De Spirito
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168 Roma, Italy; (G.P.); (G.C.); (M.D.S.)
- Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168 Roma, Italy
| | - Massimiliano Papi
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168 Roma, Italy; (G.P.); (G.C.); (M.D.S.)
- Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168 Roma, Italy
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60
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Valli F, García Vior MC, Roguin LP, Marino J. Crosstalk between oxidative stress-induced apoptotic and autophagic signaling pathways in Zn(II) phthalocyanine photodynamic therapy of melanoma. Free Radic Biol Med 2020; 152:743-754. [PMID: 31962157 DOI: 10.1016/j.freeradbiomed.2020.01.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/16/2020] [Accepted: 01/16/2020] [Indexed: 12/19/2022]
Abstract
Melanoma is the most aggressive type of skin cancer, highly resistant to conventional therapies. Photodynamic therapy (PDT) is a minimally invasive treatment modality that combines the use of a photosensitizer, visible light and molecular oxygen, leading to oxidative stress in the specific site of irradiation. The cationic zinc(II) phthalocyanine Pc13 has shown to be a potent photosensitizer in different melanoma cell lines. In this study, we explored the intracellular signaling pathways triggered by Pc13 PDT and the role of these cascades in the phototoxic action of Pc13 in human melanoma A375 cells. Activation of MAPKs p38, ERK, JNK and PI3K-I/AKT was observed after treatment and prevented by using the antioxidant trolox. Inhibition of p38 reduced Pc13 phototoxicity, whereas blockage of JNK potentiated cell death. Results obtained indicate that p38 is involved in the cleavage of PARP-1, an important mediator of apoptosis. On the other hand, Pc13 irradiation induced the activation of an autophagic program, as evidenced by enhanced levels of Beclin-1, LC3-II and GFP-LC3 punctate staining. We also demonstrated that this autophagic response is promoted by JNK and negatively regulated by PI3K-I/AKT pathway. The blockage of autophagy increased Pc13 phototoxicity and enhanced PARP-1 cleavage, revealing a protective role of this mechanism, which tends to prevent apoptotic cell death. Furthermore, reduced susceptibility to treatment and increased activation of autophagy were detected in A375 cells submitted to repeated cycles of Pc13 PDT, indicating that autophagy could represent a mechanism of resistance to PDT. The efficacy of Pc13 PDT and an improved phototoxic action in combination with chloroquine were also demonstrated in tumor spheroids. In conclusion, we showed the interplay between apoptotic and autophagic signaling pathways triggered by Pc13 PDT-induced oxidative stress. Thus, autophagy modulation represents a promising therapeutic strategy to potentiate the efficacy of PDT in melanoma.
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Affiliation(s)
- Federico Valli
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, CONICET-UBA, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, C1113AAD, Buenos Aires, Argentina
| | - María C García Vior
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Orgánica, CONICET, Junín 956, C1113AAD, Buenos Aires, Argentina
| | - Leonor P Roguin
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, CONICET-UBA, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, C1113AAD, Buenos Aires, Argentina
| | - Julieta Marino
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, CONICET-UBA, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, C1113AAD, Buenos Aires, Argentina.
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61
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Li XY, Tan LC, Dong LW, Zhang WQ, Shen XX, Lu X, Zheng H, Lu YG. Susceptibility and Resistance Mechanisms During Photodynamic Therapy of Melanoma. Front Oncol 2020; 10:597. [PMID: 32528867 PMCID: PMC7247862 DOI: 10.3389/fonc.2020.00597] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 04/01/2020] [Indexed: 12/19/2022] Open
Abstract
Melanoma is the most aggressive malignant skin tumor and arises from melanocytes. The resistance of melanoma cells to various treatments results in rapid tumor growth and high mortality. As a local therapeutic modality, photodynamic therapy has been successfully applied for clinical treatment of skin diseases. Photodynamic therapy is a relatively new treatment method for various types of malignant tumors in humans and, compared to conventional treatment methods, has fewer side effects, and is more accurate and non-invasive. Although several in vivo and in vitro studies have shown encouraging results regarding the potential benefits of photodynamic therapy as an adjuvant treatment for melanoma, its clinical application remains limited owing to its relative inefficiency. This review article discusses the use of photodynamic therapy in melanoma treatment as well as the latest progress made in deciphering the mechanism of tolerance. Lastly, potential targets are identified that may improve photodynamic therapy against melanoma cells.
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Affiliation(s)
- Xin-Ying Li
- Department of Plastic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Liu-Chang Tan
- Department of Plastic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Li-Wen Dong
- Department of Plastic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Wan-Qi Zhang
- Department of Plastic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Xiao-Xiao Shen
- Department of Plastic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Xiao Lu
- Department of Thoracic Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Hong Zheng
- Department of Thoracic Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Yuan-Gang Lu
- Department of Plastic Surgery, Daping Hospital, Army Medical University, Chongqing, China
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Zhang X, Chen X, Guo Y, Jia HR, Jiang YW, Wu FG. Endosome/lysosome-detained supramolecular nanogels as an efflux retarder and autophagy inhibitor for repeated photodynamic therapy of multidrug-resistant cancer. NANOSCALE HORIZONS 2020; 5:481-487. [PMID: 32118218 DOI: 10.1039/c9nh00643e] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The presence of drug efflux pumps and endo/lysosomal entrapment phenomena in multidrug-resistant cancer cells leads to insufficient and off-target accumulation of anticancer drugs in the cells, which severely reduces the drugs' therapeutic efficacies. Here, we prepare a novel type of photosensitizer (PS)-loaded supramolecular nanogel, which can utilize the endo/lysosomal entrapment for enhanced photodynamic therapy (PDT) of multidrug-resistant cancer. The PS-loaded nanogels can elude the drug efflux pumps, and be markedly internalized by drug-resistant cancer cells through the endocytic pathway. With their pH-sensitive properties, the internalized nanogels can aggregate in the acidic endosomes/lysosomes, thus retarding their exocytosis from the cells. Moreover, the lysosomes of the nanogel-treated cells are severely damaged after irradiation, which inhibits the protective autophagy and improves the photodynamic therapeutic performance of the nanogels. Besides, the in vivo experiments show that the nanogels significantly prolong the tumor retention of the PSs, thus enabling multiple PDT treatments after a single drug injection.
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Affiliation(s)
- Xiaodong Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
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Zhuang Z, Dai J, Yu M, Li J, Shen P, Hu R, Lou X, Zhao Z, Tang BZ. Type I photosensitizers based on phosphindole oxide for photodynamic therapy: apoptosis and autophagy induced by endoplasmic reticulum stress. Chem Sci 2020; 11:3405-3417. [PMID: 34745515 PMCID: PMC8515424 DOI: 10.1039/d0sc00785d] [Citation(s) in RCA: 137] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 02/20/2020] [Indexed: 12/21/2022] Open
Abstract
Photodynamic therapy (PDT) is considered a pioneering and effective modality for cancer treatment, but it is still facing challenges of hypoxic tumors. Recently, Type I PDT, as an effective strategy to address this issue, has drawn considerable attention. Few reports are available on the capability for Type I reactive oxygen species (ROS) generation of purely organic photosensitizers (PSs). Herein, we report two new Type I PSs, α-TPA-PIO and β-TPA-PIO, from phosphindole oxide-based isomers with efficient Type I ROS generation abilities. A detailed study on photophysical and photochemical mechanisms is conducted to shed light on the molecular design of PSs based on the Type I mechanism. The in vitro results demonstrate that these two PSs can selectively accumulate in a neutral lipid region, particularly in the endoplasmic reticulum (ER), of cells and efficiently induce ER-stress mediated apoptosis and autophagy in PDT. In vivo models indicate that β-TPA-PIO successfully achieves remarkable tumor ablation. The ROS-based ER stress triggered by β-TPA-PIO-mediated PDT has high potential as a precursor of the immunostimulatory effect for immunotherapy. This work presents a comprehensive protocol for Type I-based purely organic PSs and highlights the significance of considering the working mechanism in the design of PSs for the optimization of cancer treatment protocols. Phosphindole oxide-based photosensitizers with Type I reactive oxygen species generation ability are developed and used for endoplasmic reticulum stress-mediated photodynamic therapy of tumors.![]()
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Affiliation(s)
- Zeyan Zhuang
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- South China University of Technology
- Guangzhou 510640
- China
| | - Jun Dai
- Department of Obstetrics and Gynecology
- Tongji Hospital
- Tongji Medical College
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Maoxing Yu
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- South China University of Technology
- Guangzhou 510640
- China
| | - Jianqing Li
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- South China University of Technology
- Guangzhou 510640
- China
| | - Pingchuan Shen
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- South China University of Technology
- Guangzhou 510640
- China
| | - Rong Hu
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- South China University of Technology
- Guangzhou 510640
- China
| | - Xiaoding Lou
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Faculty of Materials Science and Chemistry
- China University of Geosciences
- Wuhan 430074
- China
| | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- South China University of Technology
- Guangzhou 510640
- China
| | - Ben Zhong Tang
- State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates
- South China University of Technology
- Guangzhou 510640
- China
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64
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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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Duan X, Chen B, Cui Y, Zhou L, Wu C, Yang Z, Wen Y, Miao X, Li Q, Xiong L, He J. Ready player one? Autophagy shapes resistance to photodynamic therapy in cancers. Apoptosis 2019; 23:587-606. [PMID: 30288638 DOI: 10.1007/s10495-018-1489-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Photodynamic therapy (PDT) is a procedure used in cancer therapy that has been shown to be useful for certain indications. Considerable evidence suggests that PDT might be superior to conventional modalities for some indications. In this report, we examine the relationship between PDT responsiveness and autophagy, which can exert a cytoprotective effect. Autophagy is an essential physiological process that maintains cellular homeostasis by degrading dysfunctional or impaired cellular components and organelles via a lysosome-based pathway. Autophagy, which includes macroautophagy and microautophagy, can be a factor that decreases or abolishes responses to various therapeutic protocols. We systematically discuss the mechanisms underlying cell-fate decisions elicited by PDT; analyse the principles of PDT-induced autophagy, macroautophagy and microautophagy; and present evidence to support the notion that autophagy is a critical mechanism in resistance to PDT. A combined strategy involving autophagy inhibitors may be able to further enhance PDT efficacy. Finally, we provide suggestions for future studies, note where our understanding of the relevant molecular regulators is deficient, and discuss the correlations among PDT-induced resistance and autophagy, especially microautophagy.
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Affiliation(s)
- Xian Duan
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, China
| | - Bo Chen
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Yanan Cui
- Department of Respiratory Medicine, Second Xiangya Hospital, Central South University, Changsha, China
| | - Lin Zhou
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, China
| | - Chenkai Wu
- Department of Respiratory Medicine, Second Xiangya Hospital, Central South University, Changsha, China
| | - Zhulin Yang
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Yu Wen
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiongying Miao
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Qinglong Li
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Li Xiong
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China.
| | - Jun He
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China.
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66
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Doustvandi MA, Mohammadnejad F, Mansoori B, Tajalli H, Mohammadi A, Mokhtarzadeh A, Baghbani E, Khaze V, Hajiasgharzadeh K, Moghaddam MM, Hamblin MR, Baradaran B. Photodynamic therapy using zinc phthalocyanine with low dose of diode laser combined with doxorubicin is a synergistic combination therapy for human SK-MEL-3 melanoma cells. Photodiagnosis Photodyn Ther 2019; 28:88-97. [PMID: 31454716 DOI: 10.1016/j.pdpdt.2019.08.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 08/01/2019] [Accepted: 08/23/2019] [Indexed: 01/16/2023]
Abstract
Chemotherapy is a generally used anticancer strategy for melanoma and it may have improved outcomes in combination with other approaches. One such strategy is photodynamic therapy (PDT), where a photosensitizer (PS) generates reactive oxygen species (ROS) after illumination of target cells. Interestingly, in low doses and high doses of light sources, special cellular responses can be induced. Regarding this fact, in this study, the combination of zinc phthalocyanine (ZnPc)-PDT and Doxorubicin (DOX) was applied at low and high dose of diode laser to treat SK-MEL-3 cells. Cytotoxic effects were determined by MTT assay for assessment synergistic effects were estimated by calculation of Combination Index (CI); that synergistic effects were observed in most groups. In low dose of laser irradiation higher synergism effects were observed. Significant changes of ROS were not observed with combinations, but autophagy, subG1 and G2/M phase cell cycle arrest, decreased cell migration ability and apoptosis induction were significantly increased compared to either treatment alone. The expression of caspase-8, -9, -3 and Bcl-2 genes revealed caspase-dependent apoptosis in all groups. Moreover, ZnPc-PDT and chemo-PDT down-regulated the expression of MMP-9 and Vimentin genes that impaired cell migration. In conclusion, it can be suggested that pre-treatment with ZnPc-PDT has high effects to sensitize SK-MEL-3 cells to DOX, in particular with low dose of diode laser.
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Affiliation(s)
| | - Fateme Mohammadnejad
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Behzad Mansoori
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark.
| | - Habib Tajalli
- Research Institute for Applied Physics and Astronomy, University of Tabriz, Tabriz, Iran; Biophotonic Research Center, Islamic Azad University, Tabriz Branch, Tabriz, Iran.
| | - Ali Mohammadi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark.
| | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biotechnology, Higher Education Institute of Rab-Rashid, Tabriz, Iran.
| | - Elham Baghbani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Vahid Khaze
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | | | | | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA.
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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67
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Lange C, Lehmann C, Mahler M, Bednarski PJ. Comparison of Cellular Death Pathways after mTHPC-mediated Photodynamic Therapy (PDT) in Five Human Cancer Cell Lines. Cancers (Basel) 2019; 11:cancers11050702. [PMID: 31117328 PMCID: PMC6587334 DOI: 10.3390/cancers11050702] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/15/2019] [Accepted: 05/19/2019] [Indexed: 02/07/2023] Open
Abstract
One of the most promising photosensitizers (PS) used in photodynamic therapy (PDT) is the porphyrin derivative 5,10,15,20-tetra(m-hydroxyphenyl)chlorin (mTHPC, temoporfin), marketed in Europe under the trade name Foscan®. A set of five human cancer cell lines from head and neck and other PDT-relevant tissues was used to investigate oxidative stress and underlying cell death mechanisms of mTHPC-mediated PDT in vitro. Cells were treated with mTHPC in equitoxic concentrations and illuminated with light doses of 1.8-7.0 J/cm2 and harvested immediately, 6, 24, or 48 h post illumination for analyses. Our results confirm the induction of oxidative stress after mTHPC-based PDT by detecting a total loss of mitochondrial membrane potential (Δψm) and increased formation of ROS. However, lipid peroxidation (LPO) and loss of cell membrane integrity play only a minor role in cell death in most cell lines. Based on our results, apoptosis is the predominant death mechanism following mTHPC-mediated PDT. Autophagy can occur in parallel to apoptosis or the former can be dominant first, yet ultimately leading to autophagy-associated apoptosis. The death of the cells is in some cases accompanied by DNA fragmentation and a G2/M phase arrest. In general, the overall phototoxic effects and the concentrations as well as the time to establish these effects varies between cell lines, suggesting that the cancer cells are not all dying by one defined mechanism, but rather succumb to an individual interplay of different cell death mechanisms. Besides the evaluation of the underlying cell death mechanisms, we focused on the comparison of results in a set of five identically treated cell lines in this study. Although cells were treated under equitoxic conditions and PDT acts via a rather unspecific ROS formation, very heterogeneous results were obtained with different cell lines. This study shows that general conclusions after PDT in vitro require testing on several cell lines to be reliable, which has too often been ignored in the past.
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Affiliation(s)
- Carsten Lange
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, University of Greifswald, Friedrich-Ludwig-Jahn-Straße 17, 17489 Greifswald, Germany.
| | - Christiane Lehmann
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, University of Greifswald, Friedrich-Ludwig-Jahn-Straße 17, 17489 Greifswald, Germany.
| | - Martin Mahler
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, University of Greifswald, Friedrich-Ludwig-Jahn-Straße 17, 17489 Greifswald, Germany.
| | - Patrick J Bednarski
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, University of Greifswald, Friedrich-Ludwig-Jahn-Straße 17, 17489 Greifswald, Germany.
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68
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Rapozzi V, D’Este F, Xodo LE. Molecular pathways in cancer response to photodynamic therapy. J PORPHYR PHTHALOCYA 2019. [DOI: 10.1142/s1088424619300064] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This minireview describes the complexity of the molecular mechanisms involved in the tumor response to photodynamic treatment (PDT). Different aspects of reactive oxygen (ROS) and nitrogen species (RNS) induced by PDT will be examined. In particular, we will discuss the effect of ROS and RNS on cell compartments and the main mechanisms of cell death induced by the treatment. Moreover, we will also examine host defense mechanisms as well as resistance to PDT.
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Affiliation(s)
- Valentina Rapozzi
- Department of Medicine, University of Udine, P.le Kolbe 4, Udine, 33100, Italy
| | - Francesca D’Este
- Department of Medicine, University of Udine, P.le Kolbe 4, Udine, 33100, Italy
| | - Luigi E. Xodo
- Department of Medicine, University of Udine, P.le Kolbe 4, Udine, 33100, Italy
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69
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A Hopeful Natural Product, Pristimerin, Induces Apoptosis, Cell Cycle Arrest, and Autophagy in Esophageal Cancer Cells. Anal Cell Pathol (Amst) 2019; 2019:6127169. [PMID: 31218209 PMCID: PMC6536960 DOI: 10.1155/2019/6127169] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 04/18/2019] [Indexed: 02/07/2023] Open
Abstract
Esophageal cancer is one of the most common malignant digestive diseases worldwide. Although many approaches have been established for the treatment of esophageal cancer, the survival outcome has not improved. Pristimerin is a quinone methide triterpenoid with anticancer, antiangiogenic, anti-inflammatory, and antiprotozoal activities. However, the role of pristimerin in cancers such as esophageal cancer is unclear. In this study, we investigated the role and mechanisms of action of pristimerin in esophageal cancer. First, we found that pristimerin can induce apoptosis in esophageal cancer in vivo and in vitro. CCK-8 and clonogenic assays showed that pristimerin decreased the growth of Eca109 cells. In addition, we found that pristimerin decreased the protein expression of CDK2, CDK4, cyclin E, and BCL-2 and increased the expression of CDKN1B. Meanwhile, pristimerin elevated the ratio of LC3-II/LC3-I. Otherwise, downregulation of CDKN1B can reduce the esophageal cancer tumor growth induced by pristimerin. In conclusion, our findings revealed an important role of pristimerin in esophageal cancer and suggest that pristimerin might be a potential therapeutic agent for this cancer.
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70
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Synthesis and photodynamic activity of novel non-symmetrical diaryl porphyrins against cancer cell lines. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 195:39-50. [PMID: 31075653 DOI: 10.1016/j.jphotobiol.2019.04.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 03/23/2019] [Accepted: 04/25/2019] [Indexed: 12/28/2022]
Abstract
Photodynamic therapy (PDT) of cancer uses photosensitizers (PS), a light source and oxygen to generate high levels of reactive oxygen species (ROS), that exert a cytotoxic action on tumor cells. Recently, it has been shown that mixed non-symmetrical diaryl porphyrins, with two different pendants, are more photodynamically active than symmetrical diaryl porphyrins. In the present study, we investigate the in vitro photodynamic effects of four novel non-symmetrical diaryl porphyrins, two of which bear one pentafluoro-phenyl and one bromo-alkyl (apolar) pendant, whereas the two others bear one pentafluoro-phenyl and one cationic pyridine pendant. The four compounds were tested in a small panel of human cancer cell lines, and their photodynamic activities were compared with that of m-THPC (Foscan), currently the most successful PS approved for clinical use in cancer PDT. The results of the cytotoxicity studies indicate that the two molecules bearing the cationic pendant are more potent in vitro than those with the apolar pendant, and that they are as potent as Foscan. To gain further insights into the mechanism of PS-induced phototoxicity, induction of apoptotic, autophagic and necrotic cell death, and generation of reactive oxygen species (ROS) were evaluated in cancer cells following exposure to the PSs and irradiation. The effect of the PSs on the migratory activity of the cells was also assessed. The data obtained from this work support a greater potency of diaryl porphyrins with a positive charge in inducing cell death, as compared to those with the bromo-alkyl pendant; most importantly, some of these novel compounds exhibit features that might make them superior to the clinically approved PS Foscan.
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71
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Manda G, Hinescu ME, Neagoe IV, Ferreira LF, Boscencu R, Vasos P, Basaga SH, Cuadrado A. Emerging Therapeutic Targets in Oncologic Photodynamic Therapy. Curr Pharm Des 2019; 24:5268-5295. [DOI: 10.2174/1381612825666190122163832] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 01/18/2019] [Indexed: 12/20/2022]
Abstract
Background:Reactive oxygen species sustain tumorigenesis and cancer progression through deregulated redox signalling which also sensitizes cancer cells to therapy. Photodynamic therapy (PDT) is a promising anti-cancer therapy based on a provoked singlet oxygen burst, exhibiting a better toxicological profile than chemo- and radiotherapy. Important gaps in the knowledge on underlining molecular mechanisms impede on its translation towards clinical applications.Aims and Methods:The main objective of this review is to critically analyse the knowledge lately gained on therapeutic targets related to redox and inflammatory networks underlining PDT and its outcome in terms of cell death and resistance to therapy. Emerging therapeutic targets and pharmaceutical tools will be documented based on the identified molecular background of PDT.Results:Cellular responses and molecular networks in cancer cells exposed to the PDT-triggered singlet oxygen burst and the associated stresses are analysed using a systems medicine approach, addressing both cell death and repair mechanisms. In the context of immunogenic cell death, therapeutic tools for boosting anti-tumor immunity will be outlined. Finally, the transcription factor NRF2, which is a major coordinator of cytoprotective responses, is presented as a promising pharmacologic target for developing co-therapies designed to increase PDT efficacy.Conclusion:There is an urgent need to perform in-depth molecular investigations in the field of PDT and to correlate them with clinical data through a systems medicine approach for highlighting the complex biological signature of PDT. This will definitely guide translation of PDT to clinic and the development of new therapeutic strategies aimed at improving PDT.
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Affiliation(s)
| | | | | | - Luis F.V. Ferreira
- CQFM-Centro de Fisica Molecular and IN-Institute for Nanosciences and Nanotechnologies and IBB-Institute for Bioengineering and Biosciences, Instituto Superior Tecnico, Universidade de Lisboa, Lisbon, Portugal
| | | | - Paul Vasos
- Research Centre of the University of Bucharest, Bucharest, Romania
| | - Selma H. Basaga
- Molecular Biology Genetics & Program, Faculty of Engineering & Natural Sciences, Sabanci University, Istanbul, Turkey
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72
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Lenkavska L, Blascakova L, Jurasekova Z, Macajova M, Bilcik B, Cavarga I, Miskovsky P, Huntosova V. Benefits of hypericin transport and delivery by low- and high-density lipoproteins to cancer cells: From in vitro to ex ovo. Photodiagnosis Photodyn Ther 2019; 25:214-224. [DOI: 10.1016/j.pdpdt.2018.12.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/12/2018] [Accepted: 12/27/2018] [Indexed: 01/29/2023]
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Wan SS, Zhang L, Zhang XZ. An ATP-Regulated Ion Transport Nanosystem for Homeostatic Perturbation Therapy and Sensitizing Photodynamic Therapy by Autophagy Inhibition of Tumors. ACS CENTRAL SCIENCE 2019; 5:327-340. [PMID: 30834321 PMCID: PMC6396388 DOI: 10.1021/acscentsci.8b00822] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Indexed: 05/08/2023]
Abstract
In this article, an adenosine-triphosphate-regulated (ATP-regulated) ion transport nanosystem [SQU@PCN, porphyrinic porous coordination network (PCN) incorporated with squaramide (SQU)] was designed and synthesized for homeostatic perturbation therapy (HPT) and sensitizing photodynamic therapy (PDT) of tumors. It was found that this nanotransporter SQU@PCN easily accumulated in tumor sites while avoiding metabolic clearance and side effects. In response to a high expression of ATP in the tumor, SQU@PCN was decomposed because of the strong coordination of ATP with metal ligand of PCN. Subsequently, incorporated SQU was released and then simultaneously transported chloride ions across membrane of the cell and lysosome along with the chloride ion concentration gradient. On one hand, influx of chloride ions by SQU increased intracellular ion concentration, which disrupted ion homeostasis and further induced tumor cell apoptosis. On the other hand, SQU-medicated coupling transport of H+/Cl- across the lysosomal membrane alkalized the lysosome, resulting in inhibition of autophagy. This SQU-mediated autophagy inhibition would sensitize PCN-based PDT since activated autophagy by traditional PDT would resist and weaken the therapeutic efficacy. In vivo animal test results revealed that combined HPT and sensitized PDT could realize tumor eradication while blocking metastasis, which provided a paradigm for complementary multimodal tumor treatment.
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Affiliation(s)
| | | | - Xian-Zheng Zhang
- Key Laboratory of Biomedical
Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
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74
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Martins WK, Santos NF, Rocha CDS, Bacellar IOL, Tsubone TM, Viotto AC, Matsukuma AY, Abrantes ABDP, Siani P, Dias LG, Baptista MS. Parallel damage in mitochondria and lysosomes is an efficient way to photoinduce cell death. Autophagy 2019; 15:259-279. [PMID: 30176156 PMCID: PMC6333451 DOI: 10.1080/15548627.2018.1515609] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 07/30/2018] [Accepted: 08/15/2018] [Indexed: 01/12/2023] Open
Abstract
Cells challenged by photosensitized oxidations face strong redox stresses and rely on autophagy to either survive or die. However, the use of macroautophagy/autophagy to improve the efficiency of photosensitizers, in terms of inducing cell death, remains unexplored. Here, we addressed the concept that a parallel damage in the membranes of mitochondria and lysosomes leads to a scenario of autophagy malfunction that can greatly improve the efficiency of the photosensitizer to cause cell death. Specific damage to these organelles was induced by irradiation of cells pretreated with 2 phenothiazinium salts, methylene blue (MB) and 1,9-dimethyl methylene blue (DMMB). At a low concentration level (10 nM), only DMMB could induce mitochondrial damage, leading to mitophagy activation, which did not progress to completion because of the parallel damage in lysosome, triggering cell death. MB-induced photodamage was perceived almost instantaneously after irradiation, in response to a massive and nonspecific oxidative stress at a higher concentration range (2 µM). We showed that the parallel damage in mitochondria and lysosomes activates and inhibits mitophagy, leading to a late and more efficient cell death, offering significant advantage (2 orders of magnitude) over photosensitizers that cause unspecific oxidative stress. We are confident that this concept can be used to develop better light-activated drugs. Abbreviations: ΔΨm: mitochondrial transmembrane inner potential; AAU: autophagy arbitrary units; ATG5, autophagy related 5; ATG7: autophagy related 7; BAF: bafilomycin A1; BSA: bovine serum albumin; CASP3: caspase 3; CF: carboxyfluorescein; CTSB: cathepsin B; CVS: crystal violet staining; DCF: dichlorofluorescein; DCFH2: 2',7'-dichlorodihydrofluorescein; DMMB: 1,9-dimethyl methylene blue; ER: endoplasmic reticulum; HaCaT: non-malignant immortal keratinocyte cell line from adult human skin; HP: hydrogen peroxide; LC3B-II: microtubule associated protein 1 light chain 3 beta-II; LMP: lysosomal membrane permeabilization; LTG: LysoTracker™ Green DND-26; LTR: LysoTracker™ Red DND-99; 3-MA: 3-methyladenine; MB: methylene blue; mtDNA: mitochondrial DNA; MitoSOX™: red mitochondrial superoxide probe; MTDR: MitoTracker™ Deep Red FM; MTO: MitoTracker™ Orange CMTMRos; MT-ND1: mitochondrially encoded NADH:ubiquinone oxidoreductase core subunit 1; MTT: methylthiazolyldiphenyl-tetrazolium bromide; 1O2: singlet oxygen; OH. hydroxil radical; PRKN/parkin: parkin RBR E3 ubiquitin protein ligase; PBS: phosphate-buffered saline; PI: propidium iodide; PDT: photodynamic therapy; PS: photosensitizer; QPCR: gene-specific quantitative PCR-based; Rh123: rhodamine 123; ROS: reactive oxygen species RTN: rotenone; SQSTM1/p62: sequestosome 1; SUVs: small unilamellar vesicles; TBS: Tris-buffered saline.
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Affiliation(s)
- Waleska K. Martins
- Instituto de Química, Departamento de Bioquímica, Universidade de São Paulo, São Paulo, Brazil
- Programa de Pós-graduação Stricto Sensue Pesquisa, Universidade Anhanguera de São Paulo, São Paulo, Brazil
| | - Nayra Fernandes Santos
- Instituto de Química, Departamento de Bioquímica, Universidade de São Paulo, São Paulo, Brazil
| | - Cleidiane de Sousa Rocha
- Instituto de Química, Departamento de Bioquímica, Universidade de São Paulo, São Paulo, Brazil
- Programa de Pós-graduação Stricto Sensue Pesquisa, Universidade Anhanguera de São Paulo, São Paulo, Brazil
| | - Isabel O. L. Bacellar
- Instituto de Química, Departamento de Bioquímica, Universidade de São Paulo, São Paulo, Brazil
| | - Tayana Mazin Tsubone
- Instituto de Química, Departamento de Bioquímica, Universidade de São Paulo, São Paulo, Brazil
| | - Ana Cláudia Viotto
- Instituto de Química, Departamento de Bioquímica, Universidade de São Paulo, São Paulo, Brazil
| | | | - Aline B. de P. Abrantes
- Instituto de Química, Departamento de Bioquímica, Universidade de São Paulo, São Paulo, Brazil
| | - Paulo Siani
- FFCLRP, Departamento de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Luís Gustavo Dias
- FFCLRP, Departamento de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Mauricio S. Baptista
- Instituto de Química, Departamento de Bioquímica, Universidade de São Paulo, São Paulo, Brazil
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75
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Guo W, Sun C, Jiang G, Xin Y. Recent Developments of Nanoparticles in the Treatment of Photodynamic Therapy for Cervical Cancer. Anticancer Agents Med Chem 2019; 19:1809-1819. [PMID: 30973114 DOI: 10.2174/1871520619666190411121953] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 02/08/2019] [Accepted: 03/01/2019] [Indexed: 01/06/2023]
Abstract
Photodynamic therapy (PDT) is a photoactivation or photosensitization process, wherein the photosensitizer
(PS) is activated under appropriate wavelengths. Conventional antitumor therapy for cervical cancer
includes surgery, radiotherapy, and chemotherapy. However, these techniques are accompanied by some evident
shortcomings. PDT is considered an emerging minimally invasive treatment for cervical cancer. In recent years,
new PSs have been synthesized because of the long absorption wavelength, good solubility, and high tumor
targeting ability. Studies also showed that the synergistic combination of nanomaterials with PSs resulted in
considerable benefits compared with the use of small-molecule PSs alone. The compounds can act both as a
drug delivery system and PS and enhance the photodynamic effect. This review summarizes the application of
some newly synthesized PSs and PS-combined nanoparticles in cervical cancer treatment to enhance the efficiency
of PDT. The mechanism and influencing factors of PDT are further elaborated.
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Affiliation(s)
- Wenwen Guo
- Department of Radiation, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
| | - Chao Sun
- Department of Dermatology, Xinyi People's Hospital, Xuzhou 221002, China
| | - Guan Jiang
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
| | - Yong Xin
- Department of Radiation, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
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76
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Rizvi I, Nath S, Obaid G, Ruhi MK, Moore K, Bano S, Kessel D, Hasan T. A Combination of Visudyne and a Lipid-anchored Liposomal Formulation of Benzoporphyrin Derivative Enhances Photodynamic Therapy Efficacy in a 3D Model for Ovarian Cancer. Photochem Photobiol 2019; 95:419-429. [PMID: 30499113 DOI: 10.1111/php.13066] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 11/27/2018] [Indexed: 01/08/2023]
Abstract
A major objective in developing new treatment approaches for lethal tumors is to reduce toxicity to normal tissues while maintaining therapeutic efficacy. Photodynamic therapy (PDT) provides a mechanistically distinct approach to treat tumors without the systemic toxicity of chemotherapy drugs. PDT involves the light-based activation of a small molecule, a photosensitizer (PS), to generate reactive molecular species (RMS) that are toxic to target tissue. Depending on the PS localization, various cellular and subcellular components can be targeted, causing selective photodamage. It has been shown that targeted lysosomal photodamage followed by, or simultaneous with, mitochondrial photodamage using two different PS results in a considerable enhancement in PDT efficacy. Here, two liposomal formulations of benzoporphyrin derivative (BPD): (1) Visudyne (clinically approved) and (2) an in-house formulation entrapping a lipid conjugate of BPD are used in combination with direct PS localization to mitochondria, endoplasmic reticulum and lysosomes, enabling simultaneous photodamage to all three organelles using a single wavelength of light. Building on findings by our group, and others, this study demonstrates, for the first time in a 3D model for ovarian cancer, that BPD-mediated photodestruction of lysosomes and mitochondria/ER significantly enhances PDT efficacy at lower light doses than treatment with either PS formulation alone.
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Affiliation(s)
- Imran Rizvi
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Shubhankar Nath
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Girgis Obaid
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Mustafa Kemal Ruhi
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA.,Institute of Biomedical Engineering, Bogazici University, Istanbul, Turkey
| | - Kaitlin Moore
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Shazia Bano
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - David Kessel
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI
| | - Tayyaba Hasan
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA
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77
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Cabrera-González J, Soriano J, Conway-Kenny R, Wang J, Lu Y, Zhao J, Nogués C, Draper SM. Multinuclear Ru(ii) and Ir(iii) decorated tetraphenylporphyrins as efficient PDT agents. Biomater Sci 2019; 7:3287-3296. [DOI: 10.1039/c9bm00192a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Two novel multi-metallic porphyrin complexes were synthesised and evaluated as effective PDT agents against human breast epithelial cells (SKBR-3).
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Affiliation(s)
| | - Jorge Soriano
- Departament de Biologia Cellular
- Fisiologia i Immunologia
- Universitat Autònoma de Barcelona
- E-08193-Bellaterra, Barcelona
- Spain
| | | | - Junsi Wang
- School of Chemistry
- Trinity College Dublin
- College Green
- Dublin 2
- Ireland
| | - Yue Lu
- School of Chemistry
- Trinity College Dublin
- College Green
- Dublin 2
- Ireland
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116012
- P. R. China
| | - Carme Nogués
- Departament de Biologia Cellular
- Fisiologia i Immunologia
- Universitat Autònoma de Barcelona
- E-08193-Bellaterra, Barcelona
- Spain
| | - Sylvia M. Draper
- School of Chemistry
- Trinity College Dublin
- College Green
- Dublin 2
- Ireland
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78
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Rodríguez ME, Arévalo DE, Milla Sanabria L, Cuello Carrión FD, Fanelli MA, Rivarola VA. Heat shock protein 27 modulates autophagy and promotes cell survival after photodynamic therapy. Photochem Photobiol Sci 2019; 18:546-554. [DOI: 10.1039/c8pp00536b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Photodynamic therapy (PDT) induces HSP27 over-expression which promotes autophagy and inhibits apoptosis.
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Affiliation(s)
| | - Daniela Elisa Arévalo
- Department of Molecular Biology
- National University of Río Cuarto
- Río Cuarto (5800)
- Argentina
| | - Laura Milla Sanabria
- Department of Molecular Biology
- National University of Río Cuarto
- Río Cuarto (5800)
- Argentina
| | | | - Mariel Andrea Fanelli
- Oncology Laboratory
- Institute of Experimental Medicine and Biology of Cuyo
- IMBECU-CRICYT
- Mendoza (5500)
- Argentina
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79
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Zhu B, Li S, Yu L, Hu W, Sheng D, Hou J, Zhao N, Hou X, Wu Y, Han Z, Wei L, Zhang L. Inhibition of Autophagy with Chloroquine Enhanced Sinoporphyrin Sodium Mediated Photodynamic Therapy-induced Apoptosis in Human Colorectal Cancer Cells. Int J Biol Sci 2019; 15:12-23. [PMID: 30662343 PMCID: PMC6329935 DOI: 10.7150/ijbs.27156] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 09/28/2018] [Indexed: 01/08/2023] Open
Abstract
To evaluate the antitumor effect of sinoporphyrin sodium mediated photodynamic therapy (DVDMS-PDT) against human colorectal cancer (CRC) and to investigate the role of autophagy in its effect. Shrunken cells, condensed nuclei and increased levels of cleaved caspase-3 and Bax were observed in DVDMS-PDT treated HCT116 cells, reminiscent of apoptosis. DVDMS-PDT showed better antitumor efficiency in HCT116 cells than Photofrin mediated photodynamic therapy (PF-PDT) both in vitro and in vivo. And DVDMS-PDT caused autophagic characteristics: double membrane autophagosome structures and changes in autophagy-related protein expression (ATG7, P62, Bcl-2 and LC3-Ⅱ). In addition, inhibition of autophagy by chloroquine (CQ) promoted apoptosis, suggesting a possible protective role of autophagy in DVDMS-PDT-treated HCT116 cells, which was proved by flow cytometry and western blotting. The results of xenograft mouse model showed markedly increased apoptosis and significantly reduced tumor size in DVDMS-PDT treated group than Control, and DVDMS-PDT exhibited better antitumor efficiency than PF-PDT. Further, no visible tumor was observed in the CQ+DVDMS-PDT group at the end of the xenograft mouse experiment, which confirmed the hypothesis that autophagy was protective to DVDMS-PDT treated HCT116 cells. Our findings suggest that DVDMS is a promising photosensitizer and the combined use of autophagy inhibitor can remarkably enhance the DVDMS-PDT mediated anti-cancer efficiency in HCT116 cells both in vitro and in vivo.
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Affiliation(s)
- Bing Zhu
- Department of Pharmacy, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - Shanxin Li
- Department of Pharmacy, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - Lei Yu
- Department of Information, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Wei Hu
- Department of Pharmacy, The Second Hospital of Anhui Medical University, Hefei, China
| | - Dandan Sheng
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Jing Hou
- GCP Office, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Naping Zhao
- Department of Pharmacy, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - Xiaojuan Hou
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Yechen Wu
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Zhipeng Han
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Lixin Wei
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Li Zhang
- Department of Pharmacy, Changhai Hospital, The Second Military Medical University, Shanghai, China
- Department of Pharmacy, The Second Hospital of Anhui Medical University, Hefei, China
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80
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Abrantes ABDP, Dias GC, Souza-Pinto NC, Baptista MS. p53-Dependent and p53-Independent Responses of Cells Challenged by Photosensitization. Photochem Photobiol 2018; 95:355-363. [PMID: 30240018 DOI: 10.1111/php.13019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 09/03/2018] [Indexed: 01/22/2023]
Abstract
The p53 protein exerts fundamental roles in cell responses to a variety of stress stimuli. It has clear roles in controlling cell cycle, triggering apoptosis, activating autophagy and modulating DNA damage response. Little is known about the role of p53 in autophagy-associated cell death, which can be induced by photoactivation of photosensitizers within cells. The photosensitizer 1,9-dimethyl methylene blue (DMMB) within nanomolar concentration regimes has specific intracellular targets (mitochondria and lysosomes), photoinducing a typical scenario of cell death with autophagy. Importantly, in consequence of its subcellular localization, photoactive DMMB induces selective damage to mitochondrial DNA, saving nuclear DNA. By challenging cells having different p53 protein levels, we investigated whether p53 modulates DMMB/light-induced phototoxicity and cell cycle dynamics. Cells lacking p53 activity were slightly more resistant to photoactivated DMMB, which was correlated with a smaller sub-G1 population, indicative of a lower level of apoptosis. DMMB photosensitization seems to induce mostly autophagy-associated cell death and S-phase cell cycle arrest with replication stress. Remarkably, these responses were independent on the p53 status, indicating that p53 is not involved in either process. Despite describing some p53-related responses in cells challenged by photosensitization, our results also provide novel information on the consequences of DMMB phototoxicity.
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Affiliation(s)
- Aline B de P Abrantes
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Gustavo C Dias
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Nadja C Souza-Pinto
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Mauricio S Baptista
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
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81
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Shi Y, Zhang B, Feng X, Qu F, Wang S, Wu L, Wang X, Liu Q, Wang P, Zhang K. Apoptosis and autophagy induced by DVDMs-PDT on human esophageal cancer Eca-109 cells. Photodiagnosis Photodyn Ther 2018; 24:198-205. [PMID: 30268863 DOI: 10.1016/j.pdpdt.2018.09.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/11/2018] [Accepted: 09/24/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Esophageal cancer is a common gastrointestinal cancer. About 300,000 people die from esophageal cancer every year in the world. Photodynamic therapy (PDT) has attracted attention as a feasible cancer therap for this diagnosis. Sinoporphyrin sodium (DVDMs) is a novel sensitizer isolated from photofrin. In this study, we aimed to investigate the effects of DVDMs mediated photodynamic therapy and the possible mechanism on human esophageal cancer Eca-109 cells. METHODS Cell viability was measured by MTT assay and cell apoptosis was determined by Annexin V-PE/7-AAD and western blot. MDC staining and western blot were used to evaluate cell autophagy. The production of intracellular reactive oxygen species (ROS) was detected by flow cytometry. The expression of MAPK and HO-1 were detected by western blot. RESULTS DVDMs-PDT decreased cell viability and induced cell apoptosis and autophagy. Autophagy inhibition reduced cell apoptosis triggered by DVDMs-PDT in Eca-109 cells. Generation of ROS was detected in DVDMs-PDT group. p38MAPK, JNK and HO-1 were activated after PDT treatment and the activation were reversed by adding ROS scavenger NAC. CONCLUSIONS Our studies demonstrated that DVDMs-PDT induced apoptosis and autophagy in Eca-109 cells. DVDMs-PDT induced ROS generation in Eca-109 cells, and the generation of ROS activated p38MAPK and JNK. Activation of p38MAPK and JNK may be involved in PDT-induced apoptosis.
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Affiliation(s)
- Yin Shi
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Boli Zhang
- Department of Nephrology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, China
| | - Xiaolan Feng
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Fei Qu
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Shuang Wang
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Lijie Wu
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Xiaobing Wang
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Quanhong Liu
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Pan Wang
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Kun Zhang
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, China.
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82
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Wang T, Hu J, Luo H, Li H, Zhou J, Zhou L, Wei S. Photosensitizer and Autophagy Promoter Coloaded ROS-Responsive Dendrimer-Assembled Carrier for Synergistic Enhancement of Tumor Growth Suppression. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1802337. [PMID: 30152186 DOI: 10.1002/smll.201802337] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/26/2018] [Indexed: 06/08/2023]
Abstract
Reactive oxygen species (ROS) generated during photodynamic therapy (PDT) can trigger autophagy. However, little research is focused on whether there is a synergistic anticancer effect with PDT if extra autophagy promoter or inhibitor is added. Here, it is found that autophagy promotion significantly enhances the PDT activity to cancer cells. Based on this preliminary result, a ROS-sensitive self-assembled dendrimer nanoparticle is exploited as a carrier to codeliver an autophagy promoter (rapamycin, Rapa) and photosensitizer (phthalocyanine, Pc) to the tumor. After entrapped by cancer cells and irradiated by light, the ROS generated in PDT process of Pc can trigger nanoparticle destruction to release Rapa, thus initiating the autophagy process and remarkably enhancing the efficacy of PDT, leading to efficient tumor suppression.
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Affiliation(s)
- Ting Wang
- College of Chemistry and Materials Science, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Jinhui Hu
- College of Chemistry and Materials Science, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Hao Luo
- College of Chemistry and Materials Science, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Huiyang Li
- College of Chemistry and Materials Science, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Jiahong Zhou
- College of Chemistry and Materials Science, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Lin Zhou
- College of Chemistry and Materials Science, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Shaohua Wei
- College of Chemistry and Materials Science, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
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83
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Ao C, Xie J, Wang L, Li S, Li J, Jiang L, Liu H, Zeng K. 5-aminolevulinic acid photodynamic therapy for anal canal condyloma acuminatum: A series of 19 cases and literature review. Photodiagnosis Photodyn Ther 2018; 23:230-234. [PMID: 30224029 DOI: 10.1016/j.pdpdt.2018.06.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 06/19/2018] [Accepted: 06/27/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Anal canal condyloma acuminata are common, sexually transmitted lesions, most often caused by the human papillomavirus. The relatively high recurrence rate of anal canal condyloma acuminata can be attributed to the unsuccessful elimination of viruses in areas of subclinical and latent infection. This study aimed to observe and evaluate the effectiveness of 5-aminolevulinic acid-photodynamic therapy combined with monitoring of human papillomavirus load changes in patients with anal canal condyloma acuminata. METHODS A total of 19 patients with anal genital warts were recruited for this study. Firstly, visible warts around the anus were removed. Next, an anoscope examination was performed. Human papillomavirus detection, using real-time polymerase chain reaction assays, was performed before every cycle of treatment. Absorbent cotton rolls soaked with a concentration of 20% 5-aminolevulinic acid were inserted into the anus for 3 h. Finally, photodynamic therapy was applied to the lesions. Each patient required multiple PDT sessions to achieve complete response. RESULTS All patients achieved complete clinical remission one week after the last session of treatment, and human papillomavirus loads decreased significantly. Six months follow-up after completion of therapy, none of the patients had recurrence. CONCLUSIONS 5-aminolevulinic acid-photodynamic therapy is an effective and safe approach for anal canal condyloma acuminata. Dynamic human papillomavirus viral quantitative monitoring can aid in the evaluation of therapeutic effects and lead to better treatment outcomes.
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Affiliation(s)
- Chunping Ao
- Department of Dermatology and Venereology, Nanfang hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Jiajia Xie
- Department of Dermatology and Venereology, Nanfang hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Li Wang
- Department of Dermatology and Venereology, Nanfang hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Songshan Li
- Department of Dermatology and Venereology, Nanfang hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Junpeng Li
- Department of Dermatology and Venereology, Nanfang hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Lifen Jiang
- Department of Dermatology and Venereology, Nanfang hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Hui Liu
- Department of Dermatology and Venereology, Nanfang hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Kang Zeng
- Department of Dermatology and Venereology, Nanfang hospital, Southern Medical University, Guangzhou, 510515, China.
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84
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Kessel D. Apoptosis, Paraptosis and Autophagy: Death and Survival Pathways Associated with Photodynamic Therapy. Photochem Photobiol 2018; 95:119-125. [PMID: 29882356 DOI: 10.1111/php.12952] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 05/31/2018] [Indexed: 12/14/2022]
Abstract
The ability of photosensitizing agents to create photodamage at specific subcellular sites has proved useful for characterizing pathway(s) to cell death and for selecting optimal targets for anti-tumor efficacy. Both apoptosis and autophagy can occur after photodamage directed at mitochondria, lysosomes or the ER, with the balance often a determinant of overall efficacy. A combination of lysosomal + mitochondrial targets is associated with enhanced efficacy. More recently, ER photodamage was found to evoke a mainly unexplored mode of photokilling that involves extensive cytoplasmic vacuole formation but does not represent autophagy. This has been termed "paraptosis" and appears to be a reaction to the appearance of misfolded ER proteins. This report is designed to summarize current knowledge relating to death pathways and update information relating to paraptosis as a PDT response.
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Affiliation(s)
- David Kessel
- Wayne State University School of Medicine, Detroit, MI
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85
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Korbelik M. Role of cell stress signaling networks in cancer cell death and antitumor immune response following proteotoxic injury inflicted by photodynamic therapy. Lasers Surg Med 2018; 50:491-498. [DOI: 10.1002/lsm.22810] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Mladen Korbelik
- Department of Integrative OncologyBritish Columbia Cancer Agency VancouverBritish ColumbiaCanada
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Xiong L, Liu Z, Ouyang G, Lin L, Huang H, Kang H, Chen W, Miao X, Wen Y. Autophagy inhibition enhances photocytotoxicity of Photosan-II in human colorectal cancer cells. Oncotarget 2018; 8:6419-6432. [PMID: 28031534 PMCID: PMC5351642 DOI: 10.18632/oncotarget.14117] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 12/13/2016] [Indexed: 12/19/2022] Open
Abstract
Photodynamic therapy (PDT) has emerged as an attractive therapeutic treatment for colorectal cancer because of its accessibility through endoscopy and its ability to selectively target tumors without destroying the anatomical integrity of the colon. We therefore investigated the therapeutic relevance of the interplay between autophagy and apoptosis in Photosan-II (PS-II)-mediated photodynamic therapy (PS-PDT) in in vitro and in vivo models for human colorectal cancer. We observed that PS-PDT-induced dose-dependently triggered apoptosis and autophagy in both SW620 and HCT116 cells. PS-PDT-treated SW620 cells exhibited nuclear condensation and increased levels of cleaved caspase-3, PARP and Bax, which is reminiscent of apoptosis. PS-PDT also induced autophagic vacuoles, double membrane autophagosome structures and the autophagy-related proteins P62, Bcl-2, ATG7 and LC3-II. In addition, the AKT-mTOR pathway was downregulated, while AMPK was upregulated in PS-PDT-treated cells. Inhibiting autophagy using chloroquine or by downregulating ATG7 using shRNA further upregulated apoptosis, suggesting autophagy was probably was protective to PS-PDT-treated tumor cells. In vivo relevance was demonstrated when a combination of chloroquine and PS-PDT significantly reduced the tumor size in a xenograft mice model. Our findings demonstrate that combination therapy using PS-PDT and autophagy inhibitors may be an effective approach to treating colorectal cancer patients.
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Affiliation(s)
- Li Xiong
- General Surgery Department of Second Xiangya Hospital, Central South University, Changsha, HN, China
| | - Zhipeng Liu
- General Surgery Department of Second Xiangya Hospital, Central South University, Changsha, HN, China
| | - Guoqing Ouyang
- General Surgery Department of Second Xiangya Hospital, Central South University, Changsha, HN, China
| | - Liangwu Lin
- China State Key Laboratory for Powder Metallurgy, Central South University, Changsha, HN, China
| | - He Huang
- Department of Histology and Embryology, Xiangya School of Medicine, Central South University, Changsha, HN, China
| | - Hongxiang Kang
- Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing, China
| | - Wei Chen
- Department of Physics, University of Texas at Arlington, Arlington, TX, USA
| | - Xiongying Miao
- General Surgery Department of Second Xiangya Hospital, Central South University, Changsha, HN, China
| | - Yu Wen
- General Surgery Department of Second Xiangya Hospital, Central South University, Changsha, HN, China
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87
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Domagala A, Stachura J, Gabrysiak M, Muchowicz A, Zagozdzon R, Golab J, Firczuk M. Inhibition of autophagy sensitizes cancer cells to Photofrin-based photodynamic therapy. BMC Cancer 2018; 18:210. [PMID: 29463237 PMCID: PMC5819678 DOI: 10.1186/s12885-018-4126-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 02/12/2018] [Indexed: 12/16/2022] Open
Abstract
Background Accumulating evidence suggest that autophagy plays a pivotal role in various anticancer therapies, including photodynamic therapy (PDT), acting as a pro-death or pro-survival mechanism in a context-dependent manner. Therefore, we aimed to determine the role of autophagy in Photofrin-based PDT. Methods In vitro cytotoxic/cytostatic effects of PDT were evaluated with crystal violet cell viability assay. Autophagy induction was analyzed by immunoblotting and immunofluorescence using anti-LC3 antibody. Autophagy was inhibited by shRNA-mediated ATG5 knockdown or CRISPR/Cas9-mediated ATG5 knockout. Apoptosis was assessed by flow cytometry analysis of propidium iodide and anexin V-positive cells as well as by detection of cleaved PARP and caspase 3 proteins using immunoblotting. Protein carbonylation was evaluated by the 2,4-dinitrophenylhydrazine (DNPH) method. Results Photofrin-PDT leads to robust autophagy induction in two cancer cell lines, Hela and MCF-7. shRNA-mediated knockdown of ATG5 only partially blocks autophagic response and only marginally affects the sensitivity of Hela and MCF-7 cells to PDT. ATG5 knockout in HeLa cell line utilizing CRISPR/Cas9 genome editing results in increased PDT-mediated cytotoxicity, which is accompanied by an enhanced apoptotic response and increased accumulation of carbonylated proteins. Conclusions Altogether, these observations imply that autophagy contributes to Photofrin-PDT resistance by enabling clearance of carbonylated and other damaged proteins. Therefore, autophagy inhibition may serve as a strategy to improve PDT efficacy.
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Affiliation(s)
- Antoni Domagala
- Department of Immunology, Medical University of Warsaw, 1A Banacha Str., F building, 02-097, Warsaw, Poland
| | - Joanna Stachura
- Department of Immunology, Medical University of Warsaw, 1A Banacha Str., F building, 02-097, Warsaw, Poland.,Postgraduate School of Molecular Medicine, Warsaw, Poland
| | - Magdalena Gabrysiak
- Department of Immunology, Medical University of Warsaw, 1A Banacha Str., F building, 02-097, Warsaw, Poland.,Immunity&Cancer Laboratory, The Francis Crick Institute, London, UK
| | - Angelika Muchowicz
- Department of Immunology, Medical University of Warsaw, 1A Banacha Str., F building, 02-097, Warsaw, Poland
| | - Radoslaw Zagozdzon
- Department of Immunology, Medical University of Warsaw, 1A Banacha Str., F building, 02-097, Warsaw, Poland.,Department of Clinical Immunology, Transplantation Institute, Medical University of Warsaw, Warsaw, Poland.,Department of Bioinformatics, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Jakub Golab
- Department of Immunology, Medical University of Warsaw, 1A Banacha Str., F building, 02-097, Warsaw, Poland.,Centre for Preclinical Research and Technology, Medical University of Warsaw, Warsaw, Poland
| | - Malgorzata Firczuk
- Department of Immunology, Medical University of Warsaw, 1A Banacha Str., F building, 02-097, Warsaw, Poland.
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88
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Kessel D, Oleinick NL. Cell Death Pathways Associated with Photodynamic Therapy: An Update. Photochem Photobiol 2018; 94:213-218. [PMID: 29143339 DOI: 10.1111/php.12857] [Citation(s) in RCA: 140] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 10/18/2017] [Indexed: 12/13/2022]
Abstract
Photodynamic therapy (PDT) has the potential to make a significant impact on cancer treatment. PDT can sensitize malignant tissues to light, leading to a highly selective effect if an appropriate light dose can be delivered. Variations in light distribution and drug delivery, along with impaired efficacy in hypoxic regions, can reduce the overall tumor response. There is also evidence that malignant cells surviving PDT may become more aggressive than the initial tumor population. Promotion of more effective direct tumor eradication is therefore an important goal. While a list of properties for the "ideal" photosensitizing agent often includes formulation, pharmacologic and photophysical elements, we propose that subcellular targeting is also an important consideration. Perspectives relating to optimizing PDT efficacy are offered here. These relate to death pathways initiated by photodamage to particular subcellular organelles.
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Affiliation(s)
- David Kessel
- Wayne State University School of Medicine, Detroit, MI
| | - Nancy L Oleinick
- Case Western Reserve University School of Medicine and the Case Comprehensive Cancer Center, Cleveland, OH
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89
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Lund K, Olsen CE, Wong JJW, Olsen PA, Solberg NT, Høgset A, Krauss S, Selbo PK. 5-FU resistant EMT-like pancreatic cancer cells are hypersensitive to photochemical internalization of the novel endoglin-targeting immunotoxin CD105-saporin. J Exp Clin Cancer Res 2017; 36:187. [PMID: 29258566 PMCID: PMC5738190 DOI: 10.1186/s13046-017-0662-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 12/07/2017] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Development of resistance to 5-fluorouracil (5-FU) is a major problem in treatment of various cancers including pancreatic cancer. In this study, we reveal important resistance mechanisms and photochemical strategies to overcome 5-FU resistance in pancreatic adenocarcinoma. METHODS 5-FU resistant (5-FUR), epithelial-to-mesenchymal-like sub-clones of the wild type pancreatic cancer cell line Panc03.27 were previously generated in our lab. We investigated the cytotoxic effect of the endosomal/lysosomal-localizing photosensitizer TPCS2a (fimaporfin) combined with light (photochemical treatment, PCT) using MTS viability assay, and used fluorescence microscopy to show localization of TPCS2a and to investigate the effect of photodamage of lysosomes. Flow cytometric analysis was performed to investigate uptake of photosensitizer and to assess intracellular ROS levels. Expression and localization of LAMP1 was assessed using RT-qPCR, western blotting, and structured illumination microscopy. MTS viability assay was used to assess the effect of combinations of 5-FU, chloroquine (CQ), and photochemical treatment. Expression of CD105 was investigated using RT-qPCR, western blotting, flow cytometry, and fluorescence microscopy, and co-localization of TPCS2a and anti-CD105-saporin was assessed using microscopy. Lastly, the MTS assay was used to investigate cytotoxic effects of photochemical internalization (PCI) of the anti-CD105-immunotoxin. RESULTS The 5-FUR cell lines display hypersensitivity to PCT, which was linked to increased uptake of TPCS2a, altered lysosomal distribution, lysosomal photodamage and increased expression of the lysosomal marker LAMP-1 in the 5-FUR cells. We show that inhibition of autophagy induced by either chloroquine or lysosomal photodamage increases the sensitivity to 5-FU in the resistant cells. The three 5-FUR sub-clones overexpress Endoglin (CD105). Treatment with the immunotoxin anti-CD105-saporin alone significantly reduced the viability of the CD105-expressing 5-FUR cells, whereas little effect was seen in the CD105-negative non-resistant parental cancer cell lines. Strikingly, using the intracellular drug delivery method photochemical internalization (PCI) by combining light-controlled activation of the TPCS2a with nanomolar levels of CD105-saporin resulted in strong cytotoxic effects in the 5-FUR cell population. CONCLUSION Our findings suggested that autophagy is an important resistance mechanism against the chemotherapeutic drug 5-FU in pancreatic cancer cells, and that inhibition of the autophagy process, either by CQ or lysosomal photodamage, can contribute to increased sensitivity to 5-FU. For the first time, we demonstrate the promise of PCI-based targeting of CD105 in site-specific elimination of 5-FU resistant pancreatic cancer cells in vitro. In conclusion, PCI-based targeting of CD105 may represent a potent anticancer strategy and should be further evaluated in pre-clinical models.
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Affiliation(s)
- Kaja Lund
- Unit for Cell Signaling, Institute of Microbiology, Rikshospitalet, 0372 Oslo, Norway
- Hybrid Technology Hub - Centre of Excellence, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, PO Box 1112, Blindern, 0317 Oslo, Norway
| | - Cathrine Elisabeth Olsen
- Department of Radiation Biology, Institute for Cancer Research, Norwegian Radium Hospital, Oslo University Hospital, 0379 Oslo, Norway
| | - Judith Jing Wen Wong
- Department of Radiation Biology, Institute for Cancer Research, Norwegian Radium Hospital, Oslo University Hospital, 0379 Oslo, Norway
| | - Petter Angell Olsen
- Unit for Cell Signaling, Institute of Microbiology, Rikshospitalet, 0372 Oslo, Norway
- Hybrid Technology Hub - Centre of Excellence, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, PO Box 1112, Blindern, 0317 Oslo, Norway
| | - Nina Therese Solberg
- Unit for Cell Signaling, Institute of Microbiology, Rikshospitalet, 0372 Oslo, Norway
- Hybrid Technology Hub - Centre of Excellence, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, PO Box 1112, Blindern, 0317 Oslo, Norway
| | - Anders Høgset
- PCI Biotech AS, Ullernchaussèn 64, 0379 Oslo, Norway
| | - Stefan Krauss
- Unit for Cell Signaling, Institute of Microbiology, Rikshospitalet, 0372 Oslo, Norway
- Hybrid Technology Hub - Centre of Excellence, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, PO Box 1112, Blindern, 0317 Oslo, Norway
| | - Pål Kristian Selbo
- Department of Radiation Biology, Institute for Cancer Research, Norwegian Radium Hospital, Oslo University Hospital, 0379 Oslo, Norway
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90
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Impact of genotypic and phenotypic differences in sarcoma models on the outcome of photochemical internalization (PCI) of bleomycin. Photodiagnosis Photodyn Ther 2017; 20:35-47. [DOI: 10.1016/j.pdpdt.2017.08.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 08/11/2017] [Accepted: 08/15/2017] [Indexed: 02/03/2023]
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91
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Horne TK, Cronjé MJ. Novel carbohydrate-substituted metallo-porphyrazine comparison for cancer tissue-type specificity during PDT. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 173:412-422. [PMID: 28662468 DOI: 10.1016/j.jphotobiol.2017.06.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 06/07/2017] [Accepted: 06/10/2017] [Indexed: 12/14/2022]
Abstract
A longstanding obstacle to cancer eradication centers on the heterogeneous nature of the tissue that manifests it. Variations between cancer cell resistance profiles often result in a survival percentage following classic therapeutics. As an alternative, photodynamic therapys' (PDT) unique non-specific cell damage mechanism and high degree of application control enables it to potentially deliver an efficient treatment regime to a broad range of heterogeneous tissue types thereby overcoming individual resistance profiles. This study follows on from previous design, characterization and solubility analyses of three novel carbohydrate-ligated zinc-porphyrazine (Zn(II)Pz) derivatives. Here we report on their PDT application potential in the treatment of five common cancer tissue types in vitro. Following analyses of metabolic homeostasis, toxicity and cell death induction, overall Zn(II)Pz-PDT proved comparably efficient between all cancer tissue populations. Differential localization patterns of Zn(II)Pz derivatives between cell types did not appear to influence the overall PDT effect. All cell types exhibited significant disruptions to mitochondrial activity and associated ATP production levels. Toxicity and chromatin structure profiles revealed indiscernible patterns of damage between Zn(II)Pz derivatives and cell type. The subtle differences observed between individual Zn(II)Pz derivatives is most likely due to a combination of carbohydrate moiety characteristics on energy transfer processes and associated dosage optimization requirements per tissue type. Collectively, this indicates that resistance profiles are negated to a significant extent by Zn(II)Pz-PDT making these derivatives attractive candidates for PDT applications across multiple tissue types and subtypes.
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Affiliation(s)
- Tamarisk K Horne
- Dept of Biochemistry, Faculty of Science, University of Johannesburg, Auckland Park, 2006, Gauteng, South Africa
| | - Marianne J Cronjé
- Dept of Biochemistry, Faculty of Science, University of Johannesburg, Auckland Park, 2006, Gauteng, South Africa.
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92
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Lin S, Yang L, Shi H, Du W, Qi Y, Qiu C, Liang X, Shi W, Liu J. Endoplasmic reticulum-targeting photosensitizer Hypericin confers chemo-sensitization towards oxaliplatin through inducing pro-death autophagy. Int J Biochem Cell Biol 2017; 87:54-68. [DOI: 10.1016/j.biocel.2017.04.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 03/28/2017] [Accepted: 04/04/2017] [Indexed: 12/12/2022]
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93
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Malatesti N, Munitic I, Jurak I. Porphyrin-based cationic amphiphilic photosensitisers as potential anticancer, antimicrobial and immunosuppressive agents. Biophys Rev 2017; 9:149-168. [PMID: 28510089 PMCID: PMC5425819 DOI: 10.1007/s12551-017-0257-7] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 03/05/2017] [Indexed: 12/15/2022] Open
Abstract
Photodynamic therapy (PDT) combines a photosensitiser, light and molecular oxygen to induce oxidative stress that can be used to kill pathogens, cancer cells and other highly proliferative cells. There is a growing number of clinically approved photosensitisers and applications of PDT, whose main advantages include the possibility of selective targeting, localised action and stimulation of the immune responses. Further improvements and broader use of PDT could be accomplished by designing new photosensitisers with increased selectivity and bioavailability. Porphyrin-based photosensitisers with amphiphilic properties, bearing one or more positive charges, are an effective tool in PDT against cancers, microbial infections and, most recently, autoimmune skin disorders. The aim of the review is to present some of the recent examples of the applications and research that employ this specific group of photosensitisers. Furthermore, we will highlight the link between their structural characteristics and PDT efficiency, which will be helpful as guidelines for rational design and evaluation of new PSs.
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Affiliation(s)
- Nela Malatesti
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000, Rijeka, Croatia.
| | - Ivana Munitic
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000, Rijeka, Croatia
| | - Igor Jurak
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000, Rijeka, Croatia
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94
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dos Santos AF, Terra LF, Wailemann RAM, Oliveira TC, Gomes VDM, Mineiro MF, Meotti FC, Bruni-Cardoso A, Baptista MS, Labriola L. Methylene blue photodynamic therapy induces selective and massive cell death in human breast cancer cells. BMC Cancer 2017; 17:194. [PMID: 28298203 PMCID: PMC5353937 DOI: 10.1186/s12885-017-3179-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 03/08/2017] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Breast cancer is the main cause of mortality among women. The disease presents high recurrence mainly due to incomplete efficacy of primary treatment in killing all cancer cells. Photodynamic therapy (PDT), an approach that causes tissue destruction by visible light in the presence of a photosensitizer (Ps) and oxygen, appears as a promising alternative therapy that could be used adjunct to chemotherapy and surgery for curing cancer. However, the efficacy of PDT to treat breast tumours as well as the molecular mechanisms that lead to cell death remain unclear. METHODS In this study, we assessed the cell-killing potential of PDT using methylene blue (MB-PDT) in three breast epithelial cell lines that represent non-malignant conditions and different molecular subtypes of breast tumours. Cells were incubated in the absence or presence of MB and irradiated or not at 640 nm with 4.5 J/cm2. We used a combination of imaging and biochemistry approaches to assess the involvement of classical autophagic and apoptotic pathways in mediating the cell-deletion induced by MB-PDT. The role of these pathways was investigated using specific inhibitors, activators and gene silencing. RESULTS We observed that MB-PDT differentially induces massive cell death of tumour cells. Non-malignant cells were significantly more resistant to the therapy compared to malignant cells. Morphological and biochemical analysis of dying cells pointed to alternative mechanisms rather than classical apoptosis. MB-PDT-induced autophagy modulated cell viability depending on the cell model used. However, impairment of one of these pathways did not prevent the fatal destination of MB-PDT treated cells. Additionally, when using a physiological 3D culture model that recapitulates relevant features of normal and tumorous breast tissue morphology, we found that MB-PDT differential action in killing tumour cells was even higher than what was detected in 2D cultures. CONCLUSIONS Finally, our observations underscore the potential of MB-PDT as a highly efficient strategy which could use as a powerful adjunct therapy to surgery of breast tumours, and possibly other types of tumours, to safely increase the eradication rate of microscopic residual disease and thus minimizing the chance of both local and metastatic recurrence.
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Affiliation(s)
- Ancély F. dos Santos
- Biochemistry Department, Chemistry Institute, University of São Paulo, São Paulo, 05508-000 SP Brazil
| | - Letícia F. Terra
- Biochemistry Department, Chemistry Institute, University of São Paulo, São Paulo, 05508-000 SP Brazil
| | - Rosangela A. M. Wailemann
- Biochemistry Department, Chemistry Institute, University of São Paulo, São Paulo, 05508-000 SP Brazil
| | - Talita C. Oliveira
- Biochemistry Department, Chemistry Institute, University of São Paulo, São Paulo, 05508-000 SP Brazil
| | - Vinícius de Morais Gomes
- Biochemistry Department, Chemistry Institute, University of São Paulo, São Paulo, 05508-000 SP Brazil
| | - Marcela Franco Mineiro
- Biochemistry Department, Chemistry Institute, University of São Paulo, São Paulo, 05508-000 SP Brazil
| | - Flávia Carla Meotti
- Biochemistry Department, Chemistry Institute, University of São Paulo, São Paulo, 05508-000 SP Brazil
| | - Alexandre Bruni-Cardoso
- Biochemistry Department, Chemistry Institute, University of São Paulo, São Paulo, 05508-000 SP Brazil
| | - Maurício S. Baptista
- Biochemistry Department, Chemistry Institute, University of São Paulo, São Paulo, 05508-000 SP Brazil
| | - Leticia Labriola
- Biochemistry Department, Chemistry Institute, University of São Paulo, São Paulo, 05508-000 SP Brazil
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95
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Hirschberg H, Madsen SJ. Synergistic efficacy of ultrasound, sonosensitizers and chemotherapy: a review. Ther Deliv 2017; 8:331-342. [PMID: 28361613 PMCID: PMC6367792 DOI: 10.4155/tde-2016-0080] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 03/03/2017] [Indexed: 12/13/2022] Open
Abstract
Chemotherapeutic agents, either in the form of systemically injected free drug or encapsulated in nanoparticles transport vehicles, must overcome three main obstacles prior to reaching and interacting with their intended target inside tumor cells. Drugs must leave the circulation, overcome the tissue-tumor barrier and penetrate the cell's plasma membrane. Since, many agents enter the cell by endocytosis, they must avoid entrapment and degradation by the intracellular endolysosome complex. Ultrasound has demonstrated potential to enhance the efficacy of chemotherapy by reducing these barriers. The purpose of this review is to highlight the potential of ultrasound in combination with sonosensitizers to enhance the efficacy of chemotherapy by optimizing the anticancer agent's intracellular ability to engage and interact with its target.
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Affiliation(s)
- Henry Hirschberg
- Beckman Laser Institute & Medical Clinic, University of California, Irvine, CA 92612, USA
- Department of Health Physics & Diagnostic Sciences, University of Nevada, Las Vegas, NV 89154, USA
| | - Steen J Madsen
- Department of Health Physics & Diagnostic Sciences, University of Nevada, Las Vegas, NV 89154, USA
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96
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Christie C, Pomeroy A, Nair R, Berg K, Hirschberg H. Photodynamic therapy enhances the efficacy of gene-directed enzyme prodrug therapy. Photodiagnosis Photodyn Ther 2017; 18:140-148. [PMID: 28257943 DOI: 10.1016/j.pdpdt.2017.02.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 02/10/2017] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Gene-directed enzyme prodrug therapy (GDEPT) employing the cytosine deaminase (CD) gene, which encodes an enzyme that converts the nontoxic agent 5-fluorocytosine (5-FC) into the chemotherapeutic drug 5-fluorouracil (5-FU), has shown promise both in experimental animals and in clinical trials. Nevertheless, with the transfection systems available presently the percentage of tumor cells incorporating the desired gene is usually too low for successful therapy. We have examined the ability of photodynamic therapy (PDT) to enhance the efficacy of the metabolites, converted from 5-FC by CD gene transfected rat glioma cells. METHODS Hybrid tumor cell spheroids consisting of CD poitive and CD negative F98 glioma cells in varying ratios were used as in vitro tumor models. PDT was performed with the photosensitizer AlPcS2a and λ=670nm laser irradiance, both before and after confrontation with 5-FC. RESULTS PDT increased the toxicity of 5-FU either as pure drug or derived from monolayers of CD positive cells chalanged with 5-FC. PDT in combination with 5-FC resulted in a significantly enhanced inhibition of hybrid spheroid growth compared to non light treated controls. This was the case even at tumor to producer cell ratios as high as 40:1. CONCLUSION The results of the present study show that GDEPT and PDT interact in a synergistic manner over a range of prodrug concentration and tumor to transfected cell ratios. The degree of synergy was significant regardless if PDT treatment was given before or after 5-FC administration. The highest degree of interaction was observed though, when PDT was delivered prior to prodrug exposure.
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Affiliation(s)
- Catherine Christie
- Beckman Laser Institute and Medical Clinic, University of California, Irvine 1002 Health Sciences Rd Irvine, CA 92617, USA
| | - Aftin Pomeroy
- Beckman Laser Institute and Medical Clinic, University of California, Irvine 1002 Health Sciences Rd Irvine, CA 92617, USA
| | - Rohit Nair
- Beckman Laser Institute and Medical Clinic, University of California, Irvine 1002 Health Sciences Rd Irvine, CA 92617, USA
| | - Kristian Berg
- Dept. of Radiation Biology, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Henry Hirschberg
- Beckman Laser Institute and Medical Clinic, University of California, Irvine 1002 Health Sciences Rd Irvine, CA 92617, USA.
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97
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Abstract
The high degree of selectivity for photodamage to subcellular organelles can provide a means for evaluation of autophagic death pathways. While many current reports rely on ambiguous criteria, there are glimmers of unequivocal evidence.
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Affiliation(s)
- David Kessel
- a Department of Pharmacology, Wayne State University School of Medicine ; Detroit , MI USA
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98
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Ziółkowska B, Woźniak M, Ziółkowski P. Co-expression of autophagic markers following photodynamic therapy in SW620 human colon adenocarcinoma cells. Mol Med Rep 2016; 14:2548-54. [PMID: 27485939 PMCID: PMC4991753 DOI: 10.3892/mmr.2016.5541] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 05/31/2016] [Indexed: 12/19/2022] Open
Abstract
Photodynamic therapy (PDT) is a minimally invasive cancer treatment. It involves the combination of a photosensitizer and light of a specific wavelength to generate singlet oxygen and other reactive oxygen species that lead to tumor cell death. Autophagy is one of the pathways that tumor cells undergo during photodamage and it is common in photodynamic therapy. The aim of this study was to examine the effect of in vitro PDT on the expression of autophagy‑related proteins, autophagy related 7 (Atg7), light chain 3 (LC3) and Beclin‑1. Human SW620 colon carcinoma cells were treated with 5-aminolevulinic acid (ALA)‑based PDT at a dose of 3 mM. The irradiation was performed using 4.5 J/cm2 total light and a fluence rate of 60 mW/cm2. Autophagy was evaluated by immunocytochemistry using specific antibodies to Atg7, Beclin‑1 and LC3. The evaluation was repeated at several time points (0, 4, 8 and 24 h) following irradiation. The induction of autophagy was observed directly following the 5‑ALA‑mediated PDT procedure with the strongest expression of autophagy-related proteins at 4 and 8 h after irradiation as demonstrated using immunocytochemistry. It was characterized by significantly increased expression of Beclin‑1, Atg7 and LC3. To the best of our knowledge this is the first study to analyze Beclin‑1, Atg7 and LC3 expression in a PDT‑related experiment. This study enhances the understanding of the role of autophagy in PDT, which may contribute to better and more effective tumor responses to this therapy.
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Affiliation(s)
- Barbara Ziółkowska
- Department of Pathology, Wrocław Medical University, 50‑368 Wrocław, Poland
| | - Marta Woźniak
- Department of Pathology, Wrocław Medical University, 50‑368 Wrocław, Poland
| | - Piotr Ziółkowski
- Department of Pathology, Wrocław Medical University, 50‑368 Wrocław, Poland
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99
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Kessel D, Evans CL. Promotion of Proapoptotic Signals by Lysosomal Photodamage: Mechanistic Aspects and Influence of Autophagy. Photochem Photobiol 2016; 92:620-3. [PMID: 27096545 DOI: 10.1111/php.12592] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 03/31/2016] [Indexed: 02/02/2023]
Abstract
Prior studies demonstrated that a low level (LD10-15 ) of lysosomal photodamage can sensitize cells to the apoptotic death that results from subsequent mitochondrial photodamage. We have proposed that this process occurs via a calpain-catalyzed cleavage of the autophagy-associated protein ATG5 to form a proapoptotic fragment. In this report, we provide evidence for the postulated ATG5 cleavage and show that the sequential photodynamic therapy (PDT) protocol can also partly overcome the adverse effect of hypoxia on the initiation of apoptosis. While autophagy can offer cytoprotection after mitochondrial photodamage, this does not appear to apply when lysosomes are the target. This may account for the ability of very low PDT doses directed at lysosomes to evoke ATG5 cleavage. The resulting proapoptotic effect overcomes intrinsic cytoprotection from mitochondrial photodamage along with a further stimulation of phototoxicity.
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Affiliation(s)
- David Kessel
- Department of Pharmacology, Wayne State University, Detroit, MI
| | - Conor L Evans
- Wellman Center for Photomedicine, Harvard Medical School Massachusetts General Hospital, Boston, MA
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100
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Baldassarre F, Foglietta F, Vergaro V, Barbero N, Capodilupo AL, Serpe L, Visentin S, Tepore A, Ciccarella G. Photodynamic activity of thiophene-derived lysosome-specific dyes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 158:16-22. [DOI: 10.1016/j.jphotobiol.2016.02.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 02/10/2016] [Accepted: 02/11/2016] [Indexed: 11/30/2022]
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