1
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Kessel D. Critical PDT Theory VII: Preclinical Translation. Photochem Photobiol 2023; 99:1361-1363. [PMID: 36862007 DOI: 10.1111/php.13797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 02/27/2023] [Indexed: 03/03/2023]
Abstract
The translation of photodynamic effects into clinical practice is a complex process that involves the pharmacokinetics of photosensitizing agents, light dosimetry and oxygenation levels. But even the 'translation' of basic photobiology into meaningful preclinical information can be challenging. Some thoughts on directions for progress in clinical trials are suggested.
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Affiliation(s)
- David Kessel
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, Michigan, USA
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2
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Ishchenko AA, Syniugina AT. Structure and Photosensitaizer Ability of Polymethine Dyes in Photodynamic Therapy: A Review. THEOR EXP CHEM+ 2023. [DOI: 10.1007/s11237-023-09754-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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3
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Ali MM, Ramadan MA, Ghazawy NA, Afify A, Mousa SA. Photochemical effect of silver nanoparticles on flesh fly larval biological system. Acta Histochem 2022; 124:151871. [PMID: 35247817 DOI: 10.1016/j.acthis.2022.151871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 11/25/2022]
Abstract
With the progress of nanoscience and its applications, silver nanoparticles (AgNPs) have become one of the most interesting nanoparticles owing to their use in different fields. However, the excessive use of AgNPs and its products may cause toxicity in both the environment and in human health. The main goal of this research is to study the toxic and photochemical effects of AgNPs against Sarcophaga argyrostoma larvae through ultrastructure, morphological change, and DNA damage. Treating midgut epithelium with AgNPs led to many alterations in dark conditions, disintegrated epithelium, swollen cells, and shrunken nucleus. Organelles appeared in a loose manner and mitochondria were without cristae, endoplasmic reticulum had dark spots, and peritrophic membrane was loose in appearance. Fatty tissues were vacuolized and muscle fibers lacked normal striations and had many gaps and lysosomal bodies. In the light conditions, the epithelium appeared with detached cells and many vacuoles, organelles were ruptured with many gaps in between, and secretory vesicles were scattered. Peritrophic membrane disappeared. Muscles collapsed and vacuolized loosed fatty tissues were detected. On the other hand, control larvae epithelium appeared regularly distinct, with organelles intact and muscles had clear normal striations. Data showed that AgNPs caused ultrastructural and morphological changes of the external cuticle of the 4th instar larvae along with a significant effect on DNA damage that occurred after the larval treatment, reflecting the toxicity of AgNPs.
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4
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Kessel D. Photodynamic Therapy: Critical PDT Theory. Photochem Photobiol 2022; 99:199-203. [PMID: 35290667 DOI: 10.1111/php.13616] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 02/13/2022] [Indexed: 12/01/2022]
Abstract
Photodynamic therapy can be useful for eradication of malignant cells at sites that are accessible to light delivery. There are few adverse effects, with many clinical reports indicating that PDT has curative potential. Patients with minimal disease, where success is more likely, are also sought by those promoting other protocols. New photosensitizing agents that initiate light-catalyzed reactions continue to be discovered. Reports describing advances in understanding fundamental aspects of photobiology are always of interest. But implications for treatment of neoplasia and other diseases are not always justified, especially when poorly-penetrating wavelengths of light are employed, often at very high light doses. Efficacy is sometimes estimated by protocols that may not accurately measure photokilling. Many reports claiming potential clinical relevance for in vitro observations are based on a limited understanding of the determinants of clinical efficacy. The future of photodynamic therapy depends on an appreciation of what can be accomplished, especially when used with other modalities, but will also depend on the goals and interests of granting agencies, pharmaceutical groups and clinical personnel. This commentary is intended to provide some thoughts on current research efforts, especially where clinical implications are suggested, hinted at or otherwise implied.
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Affiliation(s)
- David Kessel
- Department of Pharmacology, Wayne State University School of Medicine, Detroit
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5
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Carobeli LR, Meirelles LEDF, Damke GMZF, Damke E, de Souza MVF, Mari NL, Mashiba KH, Shinobu-Mesquita CS, Souza RP, da Silva VRS, Gonçalves RS, Caetano W, Consolaro MEL. Phthalocyanine and Its Formulations: A Promising Photosensitizer for Cervical Cancer Phototherapy. Pharmaceutics 2021; 13:pharmaceutics13122057. [PMID: 34959339 PMCID: PMC8705941 DOI: 10.3390/pharmaceutics13122057] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 12/13/2022] Open
Abstract
Cervical cancer is one of the most common causes of cancer-related deaths in women worldwide. Despite advances in current therapies, women with advanced or recurrent disease present poor prognosis. Photodynamic therapy (PDT) has emerged as an effective therapeutic alternative to treat oncological diseases such as cervical cancer. Phthalocyanines (Pcs) are considered good photosensitizers (PS) for PDT, although most of them present high levels of aggregation and are lipophilic. Despite many investigations and encouraging results, Pcs have not been approved as PS for PDT of invasive cervical cancer yet. This review presents an overview on the pathophysiology of cervical cancer and summarizes the most recent developments on the physicochemical properties of Pcs and biological results obtained both in vitro in tumor-bearing mice and in clinical tests reported in the last five years. Current evidence indicates that Pcs have potential as pharmaceutical agents for anti-cervical cancer therapy. The authors firmly believe that Pc-based formulations could emerge as a privileged scaffold for the establishment of lead compounds for PDT against different types of cervical cancer.
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Affiliation(s)
- Lucimara R. Carobeli
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Maringá 87020-900, PR, Brazil; (L.R.C.); (L.E.d.F.M.); (G.M.Z.F.D.); (E.D.); (M.V.F.d.S.); (N.L.M.); (K.H.M.); (C.S.S.-M.); (R.P.S.); (V.R.S.d.S.)
| | - Lyvia E. de F. Meirelles
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Maringá 87020-900, PR, Brazil; (L.R.C.); (L.E.d.F.M.); (G.M.Z.F.D.); (E.D.); (M.V.F.d.S.); (N.L.M.); (K.H.M.); (C.S.S.-M.); (R.P.S.); (V.R.S.d.S.)
| | - Gabrielle M. Z. F. Damke
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Maringá 87020-900, PR, Brazil; (L.R.C.); (L.E.d.F.M.); (G.M.Z.F.D.); (E.D.); (M.V.F.d.S.); (N.L.M.); (K.H.M.); (C.S.S.-M.); (R.P.S.); (V.R.S.d.S.)
| | - Edilson Damke
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Maringá 87020-900, PR, Brazil; (L.R.C.); (L.E.d.F.M.); (G.M.Z.F.D.); (E.D.); (M.V.F.d.S.); (N.L.M.); (K.H.M.); (C.S.S.-M.); (R.P.S.); (V.R.S.d.S.)
| | - Maria V. F. de Souza
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Maringá 87020-900, PR, Brazil; (L.R.C.); (L.E.d.F.M.); (G.M.Z.F.D.); (E.D.); (M.V.F.d.S.); (N.L.M.); (K.H.M.); (C.S.S.-M.); (R.P.S.); (V.R.S.d.S.)
| | - Natália L. Mari
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Maringá 87020-900, PR, Brazil; (L.R.C.); (L.E.d.F.M.); (G.M.Z.F.D.); (E.D.); (M.V.F.d.S.); (N.L.M.); (K.H.M.); (C.S.S.-M.); (R.P.S.); (V.R.S.d.S.)
| | - Kayane H. Mashiba
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Maringá 87020-900, PR, Brazil; (L.R.C.); (L.E.d.F.M.); (G.M.Z.F.D.); (E.D.); (M.V.F.d.S.); (N.L.M.); (K.H.M.); (C.S.S.-M.); (R.P.S.); (V.R.S.d.S.)
| | - Cristiane S. Shinobu-Mesquita
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Maringá 87020-900, PR, Brazil; (L.R.C.); (L.E.d.F.M.); (G.M.Z.F.D.); (E.D.); (M.V.F.d.S.); (N.L.M.); (K.H.M.); (C.S.S.-M.); (R.P.S.); (V.R.S.d.S.)
| | - Raquel P. Souza
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Maringá 87020-900, PR, Brazil; (L.R.C.); (L.E.d.F.M.); (G.M.Z.F.D.); (E.D.); (M.V.F.d.S.); (N.L.M.); (K.H.M.); (C.S.S.-M.); (R.P.S.); (V.R.S.d.S.)
| | - Vânia R. S. da Silva
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Maringá 87020-900, PR, Brazil; (L.R.C.); (L.E.d.F.M.); (G.M.Z.F.D.); (E.D.); (M.V.F.d.S.); (N.L.M.); (K.H.M.); (C.S.S.-M.); (R.P.S.); (V.R.S.d.S.)
| | - Renato S. Gonçalves
- Department of Chemistry, Universidade Estadual de Maringá, Maringá 87020-900, PR, Brazil; (R.S.G.); (W.C.)
| | - Wilker Caetano
- Department of Chemistry, Universidade Estadual de Maringá, Maringá 87020-900, PR, Brazil; (R.S.G.); (W.C.)
| | - Márcia E. L. Consolaro
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Maringá 87020-900, PR, Brazil; (L.R.C.); (L.E.d.F.M.); (G.M.Z.F.D.); (E.D.); (M.V.F.d.S.); (N.L.M.); (K.H.M.); (C.S.S.-M.); (R.P.S.); (V.R.S.d.S.)
- Correspondence: ; Tel.: +55-44-3011-5455
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Jin ZY, Fatima H, Zhang Y, Shao Z, Chen XJ. Recent Advances in Bio‐Compatible Oxygen Singlet Generation and Its Tumor Treatment. ADVANCED THERAPEUTICS 2021. [DOI: 10.1002/adtp.202100176] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zheng Yang Jin
- The First Affiliated Hospital of Wenzhou Medical University Wenzhou Zhejiang 325015 P. R. China
| | - Hira Fatima
- Western Australia School of Mines: Minerals Energy and Chemical Engineering (WASM‐MECE) Curtin University Perth Western Australia 6102 Australia
| | - Yue Zhang
- The First Affiliated Hospital of Wenzhou Medical University Wenzhou Zhejiang 325015 P. R. China
| | - Zongping Shao
- Western Australia School of Mines: Minerals Energy and Chemical Engineering (WASM‐MECE) Curtin University Perth Western Australia 6102 Australia
- State Key Laboratory of Materials‐Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University Nanjing Jiangsu 211816 P. R. China
| | - Xiang Jian Chen
- The First Affiliated Hospital of Wenzhou Medical University Wenzhou Zhejiang 325015 P. R. China
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7
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Photodynamic therapy of prostate cancer using porphyrinic formulations. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 223:112301. [PMID: 34492530 DOI: 10.1016/j.jphotobiol.2021.112301] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/01/2021] [Accepted: 08/24/2021] [Indexed: 01/21/2023]
Abstract
Prostate cancer (PCa) is the second most frequent cancer diagnosed in men worldwide. Among the common treatment options, photodynamic therapy (PDT) is being considered a promising local therapy to treat this cancer. Although PDT is an established treatment modality approved for several types of cancer, the low solubility, the reduced tumor selectivity, the absorption in the therapeutic window and the poor clearance from the body of the currently approved photosensitizers (PS) hampers its wide clinical application. In this regard, herein we synthesized three fluorinated porphyrinoid derivatives and entrapped them into polyvinylpyrrolidone (PVP) to prevent their aggregation and preserve their desirable photophysical properties under the physiological environment. In vitro studies revealed the negligible dark cytotoxicity of all PVP formulations (PS1@PVP, PS2@PVP and PS3@PVP) at the tested concentrations (5.0 to 20 μM), but also confirmed the significant photodynamic effect of PS2@PVP and PS3@PVP towards the PCa cell line PC-3, upon red light irradiation at an irradiance of 17.6 mW.cm-2. To provide insight into the underlying mechanisms of cell death under PDT treatment induced by PS2@PVP and PS3@PVP, their intracellular localization in PC-3 cells was firstly investigated by confocal microscopy. Since both PS2@PVP and PS3@PVP nanoparticles were mainly localized in mitochondria, the involvement of this organelle in PDT-induced apoptosis mediated by both formulations was further explored. Western blot analysis revealed that PDT treatment of PC-3 cells with either PS2@PVP or PS3@PVP resulted in the reduction of the expression level of the anti-apoptotic protein Bcl-2. As the photodamage to Bcl-2 after PDT with PS2@PVP and PS3@PVP was accompanied by the further activation of pro-caspase-3, we assumed that upon irradiation the photogenerated reactive oxygen species (ROS) were able to activate a caspase-dependent apoptotic response as a consequence of a post-mitochondrial event. Taken together, these findings demonstrate that among the tested fluorinated porphyrinoids, PS2@PVP and, particularly, PS3@PVP, are significantly more effective in overall PC-3 cell killing than PS1@PVP, thus highlighting their great potential as therapeutic agents for PCa.
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Zeng L, Zou Q, Huang P, Xiong L, Cheng Y, Chen Q, Li Y, He H, Yi W, Wei W. Inhibition of autophagy with Chloroquine enhanced apoptosis induced by 5-aminolevulinic acid-photodynamic therapy in secondary hyperparathyroidism primary cells and organoids. Biomed Pharmacother 2021; 142:111994. [PMID: 34411921 DOI: 10.1016/j.biopha.2021.111994] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/26/2021] [Accepted: 07/30/2021] [Indexed: 11/17/2022] Open
Abstract
Secondary hyperparathyroidism (SHPT), the most common complication in the later stage of chronic kidney disease (CKD), seriously affects quality of life and the survival time of patients. At present, the conventional drugs and surgical methods still cannot fully meet the needs of clinical treatment. It is quite significant to develop effective and minimally invasive treatment methods. 5-Aminolevulinic acid-mediated photodynamic therapy (5-ALA-PDT), an alternative treatment relying on light irradiation, photosensitizer, and oxygen to produce a series of cytotoxic effects on tissue, is a promising technique for treating SHPT. We have successfully cultivated SHPT primary cells and organoids, and further proved that the amount of 5-ALA transformed into protoporphyrin IX in a time- and concentration-dependent manner. Also, 5-ALA-PDT exerted a cytotoxic effect on both primary cells and organoids by the cell counting kit (CCK-8) assay. Mechanically, 5-ALA-PDT increased the number of autophagosomes, and autophagy- and apoptosis-related proteins were upregulated markedly by western-blotting. The autophagy inhibitor Chloroquine (CQ) significantly increased the proportion of apoptotic cells, while the autophagy inducer rapamycin decreased the inhibitory ability of 5-ALA-PDT in SHPT primary cells. In brief, 5-ALA-PDT exhibits a phototoxic effect on SHPT primary cells and organoids. Autophagy and apoptosis are involved in the mechanism, and autophagy plays a role in promoting survival and inhibiting apoptosis. Therefore, the use of autophagy inhibitors can increase the sensitivity of SHPT cells and organoids treated with 5-ALA-PDT.
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Affiliation(s)
- Liyun Zeng
- Department of General Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan Province 410000, China.
| | - Qiongyan Zou
- Department of General Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan Province 410000, China.
| | - Peng Huang
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province 410000, China.
| | - Li Xiong
- Department of General Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan Province 410000, China.
| | - Yan Cheng
- Department of Pharmacy, the Second Xiangya Hospital, Central South University, China.
| | - Qitong Chen
- Department of General Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan Province 410000, China.
| | - Yitong Li
- Department of General Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan Province 410000, China.
| | - Hongye He
- Department of General Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan Province 410000, China.
| | - Wenjun Yi
- Department of General Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan Province 410000, China.
| | - Wu Wei
- Department of General Surgery, the Third Xiangya Hospital, Central South University, Changsha, Hunan Province 410000, China.
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Gunaydin G, Gedik ME, Ayan S. Photodynamic Therapy-Current Limitations and Novel Approaches. Front Chem 2021; 9:691697. [PMID: 34178948 PMCID: PMC8223074 DOI: 10.3389/fchem.2021.691697] [Citation(s) in RCA: 176] [Impact Index Per Article: 58.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 05/14/2021] [Indexed: 12/17/2022] Open
Abstract
Photodynamic therapy (PDT) mostly relies on the generation of singlet oxygen, via the excitation of a photosensitizer, so that target tumor cells can be destroyed. PDT can be applied in the settings of several malignant diseases. In fact, the earliest preclinical applications date back to 1900’s. Dougherty reported the treatment of skin tumors by PDT in 1978. Several further studies around 1980 demonstrated the effectiveness of PDT. Thus, the technique has attracted the attention of numerous researchers since then. Hematoporphyrin derivative received the FDA approval as a clinical application of PDT in 1995. We have indeed witnessed a considerable progress in the field over the last century. Given the fact that PDT has a favorable adverse event profile and can enhance anti-tumor immune responses as well as demonstrating minimally invasive characteristics, it is disappointing that PDT is not broadly utilized in the clinical setting for the treatment of malignant and/or non-malignant diseases. Several issues still hinder the development of PDT, such as those related with light, tissue oxygenation and inherent properties of the photosensitizers. Various photosensitizers have been designed/synthesized in order to overcome the limitations. In this Review, we provide a general overview of the mechanisms of action in terms of PDT in cancer, including the effects on immune system and vasculature as well as mechanisms related with tumor cell destruction. We will also briefly mention the application of PDT for non-malignant diseases. The current limitations of PDT utilization in cancer will be reviewed, since identifying problems associated with design/synthesis of photosensitizers as well as application of light and tissue oxygenation might pave the way for more effective PDT approaches. Furthermore, novel promising approaches to improve outcome in PDT such as selectivity, bioengineering, subcellular/organelle targeting, etc. will also be discussed in detail, since the potential of pioneering and exceptional approaches that aim to overcome the limitations and reveal the full potential of PDT in terms of clinical translation are undoubtedly exciting. A better understanding of novel concepts in the field (e.g. enhanced, two-stage, fractional PDT) will most likely prove to be very useful for pursuing and improving effective PDT strategies.
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Affiliation(s)
- Gurcan Gunaydin
- Department of Basic Oncology, Hacettepe University Cancer Institute, Sihhiye, Ankara, Turkey
| | - M Emre Gedik
- Department of Basic Oncology, Hacettepe University Cancer Institute, Sihhiye, Ankara, Turkey
| | - Seylan Ayan
- Department of Chemistry, Bilkent University, Ankara, Turkey
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10
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Kessel D. Death Pathways Associated with Photodynamic Therapy. Photochem Photobiol 2021; 97:1101-1103. [PMID: 33884636 DOI: 10.1111/php.13436] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 04/15/2021] [Indexed: 12/27/2022]
Abstract
This report describes studies involving ER vs. lysosomal targeting and is designed to assess the initiation of different death pathways as a function of subcellular targeting and PDT dose. Photodamage directed at mitochondria or lysosomes initiates apoptosis, a death pathway generally considered to be irreversible. Photodamage that involves the ER can lead to another death pathway termed paraptosis. This does not involve caspase activation, can eradicate cell types with impaired apoptosis; at high levels of irradiation, apoptosis and necrosis were observed. Autophagy has a cytoprotective function unless lysosomes are targeted; loss of lysosomal integrity can interfere with the autophagic recycling processes.
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Affiliation(s)
- David Kessel
- Wayne State University School of Medicine, Detroit, MI
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11
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Calori IR, Bi H, Tedesco AC. Expanding the Limits of Photodynamic Therapy: The Design of Organelles and Hypoxia-Targeting Nanomaterials for Enhanced Photokilling of Cancer. ACS APPLIED BIO MATERIALS 2021; 4:195-228. [PMID: 35014281 DOI: 10.1021/acsabm.0c00945] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Photodynamic therapy (PDT) is a minimally invasive clinical protocol that combines a nontoxic photosensitizer (PS), appropriate visible light, and molecular oxygen for cancer treatment. This triad generates reactive oxygen species (ROS) in situ, leading to different cell death pathways and limiting the arrival of nutrients by irreversible destruction of the tumor vascular system. Despite the number of formulations and applications available, the advancement of therapy is hindered by some characteristics such as the hypoxic condition of solid tumors and the limited energy density (light fluence) that reaches the target. As a result, the use of PDT as a definitive monotherapy for cancer is generally restricted to pretumor lesions or neoplastic tissue of approximately 1 cm in size. To expand this limitation, researchers have synthesized functional nanoparticles (NPs) capable of carrying classical photosensitizers with self-supplying oxygen as well as targeting specific organelles such as mitochondria and lysosomes. This has improved outcomes in vitro and in vivo. This review highlights the basis of PDT, many of the most commonly used strategies of functionalization of smart NPs, and their potential to break the current limits of the classical protocol of PDT against cancer. The application and future perspectives of the multifunctional nanoparticles in PDT are also discussed in some detail.
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Affiliation(s)
- Italo Rodrigo Calori
- Department of Chemistry, Center of Nanotechnology and Tissue Engineering, Photobiology and Photomedicine Research Group, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo-Ribeirão Preto, São Paulo 14040-901, Brazil
| | - Hong Bi
- School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, 111 Jiulong Road, Hefei 230601, China
| | - Antonio Claudio Tedesco
- Department of Chemistry, Center of Nanotechnology and Tissue Engineering, Photobiology and Photomedicine Research Group, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo-Ribeirão Preto, São Paulo 14040-901, Brazil.,School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, 111 Jiulong Road, Hefei 230601, China
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12
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Alzeibak R, Mishchenko TA, Shilyagina NY, Balalaeva IV, Vedunova MV, Krysko DV. Targeting immunogenic cancer cell death by photodynamic therapy: past, present and future. J Immunother Cancer 2021; 9:e001926. [PMID: 33431631 PMCID: PMC7802670 DOI: 10.1136/jitc-2020-001926] [Citation(s) in RCA: 221] [Impact Index Per Article: 73.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2020] [Indexed: 12/18/2022] Open
Abstract
The past decade has witnessed major breakthroughs in cancer immunotherapy. This development has been largely motivated by cancer cell evasion of immunological control and consequent tumor resistance to conventional therapies. Immunogenic cell death (ICD) is considered one of the most promising ways to achieve total tumor cell elimination. It activates the T-cell adaptive immune response and results in the formation of long-term immunological memory. ICD can be triggered by many anticancer treatment modalities, including photodynamic therapy (PDT). In this review, we first discuss the role of PDT based on several classes of photosensitizers, including porphyrins and non-porphyrins, and critically evaluate their potential role in ICD induction. We emphasize the emerging trend of ICD induction by PDT in combination with nanotechnology, which represents third-generation photosensitizers and involves targeted induction of ICD by PDT. However, PDT also has some limitations, including the reduced efficiency of ICD induction in the hypoxic tumor microenvironment. Therefore, we critically evaluate strategies for overcoming this limitation, which is essential for increasing PDT efficiency. In the final part, we suggest several areas for future research for personalized cancer immunotherapy, including strategies based on oxygen-boosted PDT and nanoparticles. In conclusion, the insights from the last several years increasingly support the idea that PDT is a powerful strategy for inducing ICD in experimental cancer therapy. However, most studies have focused on mouse models, but it is necessary to validate this strategy in clinical settings, which will be a challenging research area in the future.
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Affiliation(s)
- Razan Alzeibak
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russian Federation
| | - Tatiana A Mishchenko
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russian Federation
| | - Natalia Y Shilyagina
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russian Federation
| | - Irina V Balalaeva
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russian Federation
| | - Maria V Vedunova
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russian Federation
| | - Dmitri V Krysko
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russian Federation
- Cell Death Investigation and Therapy Laboratory (CDIT), Department of Human Structure and Repair, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
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13
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Kessel D, Reiners JJ. Photodynamic therapy: autophagy and mitophagy, apoptosis and paraptosis. Autophagy 2020; 16:2098-2101. [PMID: 32584644 PMCID: PMC7595601 DOI: 10.1080/15548627.2020.1783823] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/07/2020] [Accepted: 05/20/2020] [Indexed: 12/21/2022] Open
Abstract
Macroautophagy/autophagy can play a cytoprotective role after photodynamic damage to malignant cells, depending on the site of subcellular damage initiated by reactive oxygen species. There is evidence for such protection when mitochondria are among the targets. Targeting lysosomes has been reported to be more effective for photokilling, perhaps because autophagy offers no cytoprotection. Photodynamic damage to both lysosomes and mitochondria can, however, markedly enhance the overall level of photokilling. Two mechanisms have been proposed to account for this result. Lysosomal photodamage leads to the release of calcium ions, resulting in the activation of the protease CAPN (calpain). CAPN then cleaves ATG5 to a fragment (tATG5) capable of interacting with mitochondria to enhance pro-apoptotic signals. It has also been proposed that targeting lysosomes for photodynamic damage can impair mitophagy, a process that could mitigate the pro-apoptotic effects of mitochondrial targeting. The level of lysosomal photodamage required for suppression of mitophagy is unclear. The "tATG5 route" involves the catalytic action of CAPN, activated by a degree of lysosomal photodamage barely detectible by a viability assay. ER photodamage can also initiate paraptosis, a death pathway functional even in cell types with impaired apoptosis and apparently unaffected by autophagy. Abbreviations: ALLN: N-acetyl-Leu-Leu-norleucinal (cell-permeable inhibitor of calpain); ATG: autophagy related; BPD: benzoporphyrin derivative (Visudyne); ER: endoplasmic reticulum; EtNBS: 5-ethylamino-9-diethyl-aminobenzo[a]phenothiazinium chloride; MTT: a tetrazolium dye; NPe6: mono N-aspartyl chlorin e6; PDT: photodynamic therapy; ROS: reactive oxygen species.
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Affiliation(s)
| | - John J. Reiners
- Department of Pharmacology, School of Medicine
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, USA
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14
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Justiniano R, de Faria Lopes L, Perer J, Hua A, Park SL, Jandova J, Baptista MS, Wondrak GT. The Endogenous Tryptophan-derived Photoproduct 6-formylindolo[3,2-b]carbazole (FICZ) is a Nanomolar Photosensitizer that Can be Harnessed for the Photodynamic Elimination of Skin Cancer Cells in Vitro and in Vivo. Photochem Photobiol 2020; 97:180-191. [PMID: 32767762 DOI: 10.1111/php.13321] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/03/2020] [Indexed: 01/10/2023]
Abstract
UV-chromophores contained in human skin may act as endogenous sensitizers of photooxidative stress and can be employed therapeutically for the photodynamic elimination of malignant cells. Here, we report that 6-formylindolo[3,2-b]carbazole (FICZ), a tryptophan-derived photoproduct and endogenous aryl hydrocarbon receptor agonist, displays activity as a nanomolar sensitizer of photooxidative stress, causing the photodynamic elimination of human melanoma and nonmelanoma skin cancer cells in vitro and in vivo. FICZ is an efficient UVA/Visible photosensitizer having absorbance maximum at 390 nm (ε = 9180 L mol-1 cm-1 ), and fluorescence and singlet oxygen quantum yields of 0.15 and 0.5, respectively, in methanol. In a panel of cultured human squamous cell carcinoma and melanoma skin cancer cells (SCC-25, HaCaT-ras II-4, A375, G361, LOX), photodynamic induction of cell death was elicited by the combined action of solar simulated UVA (6.6 J cm-2 ) and FICZ (≥10 nm), preceded by the induction of oxidative stress as substantiated by MitoSOX Red fluorescence microscopy, comet detection of Fpg-sensitive oxidative genomic lesions and upregulated stress response gene expression (HMOX1, HSPA1A, HSPA6). In SKH1 "high-risk" mouse skin, an experimental FICZ/UVA photodynamic treatment regimen blocked the progression of UV-induced tumorigenesis suggesting feasibility of harnessing FICZ for the photooxidative elimination of malignant cells in vivo.
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Affiliation(s)
- Rebecca Justiniano
- Department of Pharmacology and Toxicology, College of Pharmacy and UA Cancer Center, University of Arizona, Tucson, AZ, USA
| | - Lohanna de Faria Lopes
- Biochemistry Department, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Jessica Perer
- Department of Pharmacology and Toxicology, College of Pharmacy and UA Cancer Center, University of Arizona, Tucson, AZ, USA
| | - Anh Hua
- Department of Pharmacology and Toxicology, College of Pharmacy and UA Cancer Center, University of Arizona, Tucson, AZ, USA
| | - Sophia L Park
- Department of Pharmacology and Toxicology, College of Pharmacy and UA Cancer Center, University of Arizona, Tucson, AZ, USA
| | - Jana Jandova
- Department of Pharmacology and Toxicology, College of Pharmacy and UA Cancer Center, University of Arizona, Tucson, AZ, USA
| | - Maurício S Baptista
- Biochemistry Department, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Georg T Wondrak
- Department of Pharmacology and Toxicology, College of Pharmacy and UA Cancer Center, University of Arizona, Tucson, AZ, USA
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15
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Kessel D. Hypericin Accumulation as a Determinant of PDT Efficacy. Photochem Photobiol 2020; 96:1144-1147. [PMID: 32599667 DOI: 10.1111/php.13302] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 06/22/2020] [Indexed: 01/27/2023]
Abstract
Efficacy of photodynamic therapy (PDT) with hypericin was compared using two cell lines in monolayer culture. Photokilling was substantially impaired in the A549 (human-derived lung tumor) when compared with the 1c1c7 murine hepatoma. The efficacy of PDT with regard to photokilling was correlated with the steady-state intracellular hypericin concentration. There was otherwise no difference in subcellular targets or the pathway to cell death: paraptosis. In a prior study involving cell lines derived from patients with head and neck cancer, differences in response to PDT had shown no correlation with photosensitizer uptake.
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Affiliation(s)
- David Kessel
- Department of Pharmacology, Wayne State University, Detroit, MI, USA
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16
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Clinical development and potential of photothermal and photodynamic therapies for cancer. Nat Rev Clin Oncol 2020; 17:657-674. [DOI: 10.1038/s41571-020-0410-2] [Citation(s) in RCA: 723] [Impact Index Per Article: 180.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/17/2020] [Indexed: 02/07/2023]
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17
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Howarth A, Madureira PA, Lockwood G, Storer LCD, Grundy R, Rahman R, Pilkington GJ, Hill R. Modulating autophagy as a therapeutic strategy for the treatment of paediatric high-grade glioma. Brain Pathol 2019; 29:707-725. [PMID: 31012506 PMCID: PMC8028648 DOI: 10.1111/bpa.12729] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 04/17/2019] [Indexed: 12/18/2022] Open
Abstract
Paediatric high-grade gliomas (pHGG) represent a therapeutically challenging group of tumors. Despite decades of research, there has been minimal improvement in treatment and the clinical prognosis remains poor. Autophagy, a highly conserved process for recycling metabolic substrates is upregulated in pHGG, promoting tumor progression and evading cell death. There is significant crosstalk between autophagy and a plethora of critical cellular pathways, many of which are dysregulated in pHGG. The following article will discuss our current understanding of autophagy signaling in pHGG and the potential modulation of this network as a therapeutic target.
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Affiliation(s)
- Alison Howarth
- Brain Tumour Research Centre, Institute of Biomedical and Biomolecular Sciences, IBBSUniversity of PortsmouthPortsmouthUK
| | - Patricia A. Madureira
- Brain Tumour Research Centre, Institute of Biomedical and Biomolecular Sciences, IBBSUniversity of PortsmouthPortsmouthUK
- Centre for Biomedical Research (CBMR)University of AlgarveFaroPortugal
| | - George Lockwood
- Children’s Brain Tumour Research Centre, School of Medicine, Queen’s Medical CentreUniversity of NottinghamNottinghamUK
| | - Lisa C. D. Storer
- Children’s Brain Tumour Research Centre, School of Medicine, Queen’s Medical CentreUniversity of NottinghamNottinghamUK
| | - Richard Grundy
- Children’s Brain Tumour Research Centre, School of Medicine, Queen’s Medical CentreUniversity of NottinghamNottinghamUK
| | - Ruman Rahman
- Children’s Brain Tumour Research Centre, School of Medicine, Queen’s Medical CentreUniversity of NottinghamNottinghamUK
| | - Geoffrey J. Pilkington
- Brain Tumour Research Centre, Institute of Biomedical and Biomolecular Sciences, IBBSUniversity of PortsmouthPortsmouthUK
| | - Richard Hill
- Brain Tumour Research Centre, Institute of Biomedical and Biomolecular Sciences, IBBSUniversity of PortsmouthPortsmouthUK
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18
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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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19
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Inglut CT, Baglo Y, Liang BJ, Cheema Y, Stabile J, Woodworth GF, Huang HC. Systematic Evaluation of Light-Activatable Biohybrids for Anti-Glioma Photodynamic Therapy. J Clin Med 2019; 8:E1269. [PMID: 31438568 PMCID: PMC6780262 DOI: 10.3390/jcm8091269] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/14/2019] [Accepted: 08/16/2019] [Indexed: 12/24/2022] Open
Abstract
Photosensitizing biomolecules (PSBM) represent a new generation of light-absorbing compounds with improved optical and physicochemical properties for biomedical applications. Despite numerous advances in lipid-, polymer-, and protein-based PSBMs, their effective use requires a fundamental understanding of how macromolecular structure influences the physicochemical and biological properties of the photosensitizer. Here, we prepared and characterized three well-defined PSBMs based on a clinically used photosensitizer, benzoporphyrin derivative (BPD). The PSBMs include 16:0 lysophosphocholine-BPD (16:0 Lyso PC-BPD), distearoyl-phosphoethanolamine-polyethylene-glycol-BPD (DSPE-PEG-BPD), and anti-EGFR cetuximab-BPD (Cet-BPD). In two glioma cell lines, DSPE-PEG-BPD exhibited the highest singlet oxygen yield but was the least phototoxic due to low cellular uptake. The 16:0 Lyso PC-BPD was most efficient in promoting cellular uptake but redirected BPD's subcellular localization from mitochondria to lysosomes. At 24 h after incubation, proteolyzed Cet-BPD was localized to mitochondria and effectively disrupted the mitochondrial membrane potential upon light activation. Our results revealed the variable trafficking and end effects of PSBMs, providing valuable insights into methods of PSBM evaluation, as well as strategies to select PSBMs based on subcellular targets and cytotoxic mechanisms. We demonstrated that biologically informed combinations of PSBMs to target lysosomes and mitochondria, concurrently, may lead to enhanced therapeutic effects against gliomas.
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Affiliation(s)
- Collin T Inglut
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
| | - Yan Baglo
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
| | - Barry J Liang
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
| | - Yahya Cheema
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
| | - Jillian Stabile
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
| | - Graeme F Woodworth
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Huang-Chiao Huang
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA.
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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20
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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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21
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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: 92] [Impact Index Per Article: 18.4] [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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22
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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: 50] [Impact Index Per Article: 10.0] [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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23
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Kaleta-Richter M, Kawczyk-Krupka A, Aebisher D, Bartusik-Aebisher D, Czuba Z, Cieślar G. The capability and potential of new forms of personalized colon cancer treatment: Immunotherapy and Photodynamic Therapy. Photodiagnosis Photodyn Ther 2019; 25:253-258. [PMID: 30611864 DOI: 10.1016/j.pdpdt.2019.01.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 12/19/2018] [Accepted: 01/02/2019] [Indexed: 02/07/2023]
Abstract
INTRODUCTION PDT can interfere with cytokine-mediated responses that play an important role in the processes of cancer progression, tumor angiogenesis and metastasis. Therefore, based on the identification of these cancer biomarkers, the therapy of combining various forms of treatment, including immunotherapy and PDT, may be a justified strategy for colorectal cancer treatment that focuses on individualized comprehensive therapy. METHOD We reviewed the major approaches on the use of immunotherapy in colorectal cancer, with the special regard to photodynamic therapy, its immunological effect and new oncological treatment directions, connected with adjuvant immunotherapy including use of nanoparticles. Databases such as PubMed, ScienceDirect and Springer were utilized to search the literature for relevant articles. PURPOSE To review studies of the immunotherapy in colon cancer and immune response to PDT. CONCLUSION Based on the identification of immunological cancer biomarkers, the therapy of combining various forms of treatment, including immunotherapy and PDT, may be a justified strategy for colorectal cancer treatment that focuses on individualized comprehensive therapy.
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Affiliation(s)
- Marta Kaleta-Richter
- School of Medicine with the Division of Dentistry in Zabrze, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Batorego Street 15, 41-902 Bytom, Poland; School of Medicine with the Division of Dentistry in Zabrze, Department of Internal Medicine, Dermatology and Allergology, Medical University of Silesia in Katowice, Marii Curie - Skłodowskiej Street 10, 41-800 Zabrze, Poland.
| | - Aleksandra Kawczyk-Krupka
- School of Medicine with the Division of Dentistry in Zabrze, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Batorego Street 15, 41-902 Bytom, Poland.
| | - David Aebisher
- Department of Photomedicine and Physical Chemistry, Faculty of Medicine, University of Rzeszów, Tadeusza Rejtana Avenue 16 C, 35-310 Rzeszów, Poland.
| | - Dorota Bartusik-Aebisher
- Department of Biochemistry and General Chemistry, Faculty of Medicine, University of Rzeszów, Tadeusza Rejtana Avenue 16 C, 35-310 Rzeszów, Poland.
| | - Zenon Czuba
- School of Medicine with the Division of Dentistry in Zabrze, Department of Microbiology and Immunology, Medical University of Silesia in Katowice, 19 Jordana St., 41- 808 Zabrze, Poland.
| | - Grzegorz Cieślar
- School of Medicine with the Division of Dentistry in Zabrze, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Batorego Street 15, 41-902 Bytom, Poland.
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24
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Spring BQ, Kessel D. 3D Culture Models of Malignant Mesothelioma Reveal a Powerful Interplay Between Photodynamic Therapy and Kinase Suppression Offering Hope to Reduce Tumor Recurrence. Photochem Photobiol 2018; 95:462-463. [PMID: 30485439 DOI: 10.1111/php.13059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 11/19/2018] [Indexed: 11/28/2022]
Abstract
In this issue, Cramer et al. introduce 3D culture models of metastatic mesothelioma to investigate basic cancer biology and new combination therapies for combating this complex and lethal disease. The results suggest that erlotinib-enhanced photodynamic therapy could further improve the efficacy of intraoperative light-activation to mop up residual tumor deposits in the clinic following surgical removal of macroscopic mesothelioma metastases.
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Affiliation(s)
- Bryan Q Spring
- Translational Biophotonics Cluster, Northeastern University, Boston, MA.,Department of Physics, Northeastern University, Boston, MA.,Department of Bioengineering, Northeastern University, Boston, MA
| | - David Kessel
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI
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25
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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: 100] [Impact Index Per Article: 16.7] [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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26
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Kessel D, Reiners JJ. Effects of Combined Lysosomal and Mitochondrial Photodamage in a Non-small-Cell Lung Cancer Cell Line: The Role of Paraptosis. Photochem Photobiol 2017; 93:1502-1508. [PMID: 28696570 DOI: 10.1111/php.12805] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 06/14/2017] [Indexed: 12/16/2022]
Abstract
We previously reported that a low level of lysosomal photodamage potentiated the phototoxic effect of subsequent mitochondrial photodamage mediated by the benzoporphyrin derivative (BPD) in murine hepatoma 1c1c7 cells. This was attributed to release of Ca2+ from damaged lysosomes and a calpain-mediated conversion of the autophagy-related protein ATG5 to a pro-apoptotic fragment. We now report a comparison of these results with those obtained with the human non-small-cell lung cancer A549 cell line. A549 cells contained lower levels of ATG5 and were less responsive than 1c1c7 cultures to the PDT combination. A rapid appearance of caspase 3/7 activation together with formation of condensed chromatin indicated initiation of apoptosis in both cell lines, but to a lesser extent in A549 cultures. Both cell lines became highly vacuolated within 16 h of combination PDT or an equivalent phototoxic dose from BPD alone. The vacuole periphery was labeled with a fluorescent probe for the endoplasmic reticulum (ER), and vacuole formation was prevented by presence of the protein synthesis inhibitor cycloheximide. These effects are characteristics of a caspase-independent death mode termed paraptosis previously associated with ER stress. These studies suggest that paraptosis may be a more frequent outcome of PDT than has hitherto been realized.
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Affiliation(s)
- David Kessel
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI
| | - John J Reiners
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI.,Institute of Environmental Health Sciences, Wayne State University, Detroit, MI
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27
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Kessel D. Subcellular Targeting as a Determinant of the Efficacy of Photodynamic Therapy. Photochem Photobiol 2017; 93:609-612. [PMID: 27935055 PMCID: PMC5352468 DOI: 10.1111/php.12692] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 11/11/2016] [Indexed: 01/22/2023]
Abstract
In prior studies, we have identified the ability of low-level lysosomal photodamage to potentiate the phototoxic effect of subsequent photodamage to mitochondria. The mechanism involves calpain-mediated cleavage of the autophagy-associated protein ATG5 to form a proapoptotic fragment (tATG5). In this report, we explore the permissible time lag between the two targeting procedures along with the effect of simultaneously targeting both lysosomes and mitochondria. This was found to be as effective as the sequential protocol with no gap between the irradiation steps. Inhibition of calpain reversed the enhanced efficacy of the "simultaneous" protocol. It appears that even a minor level of lysosomal photodamage can have a significant effect on the efficacy of subsequent mitochondrial photodamage. We propose that these results may explain the efficacy of Photofrin, a photosensitizing product that also targets both lysosomes and mitochondria for photodamage.
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Affiliation(s)
- David Kessel
- Department of Pharmacology, Wayne State University School of Medicine, Detroit MI 48201
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28
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Ruiz-González R, Milán P, Bresolí-Obach R, Stockert JC, Villanueva A, Cañete M, Nonell S. Photodynamic Synergistic Effect of Pheophorbide a and Doxorubicin in Combined Treatment against Tumoral Cells. Cancers (Basel) 2017; 9:cancers9020018. [PMID: 28218672 PMCID: PMC5332941 DOI: 10.3390/cancers9020018] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 01/20/2017] [Accepted: 02/11/2017] [Indexed: 11/16/2022] Open
Abstract
A combination of therapies to treat cancer malignancies is at the forefront of research with the aim to reduce drug doses (ultimately side effects) and diminish the possibility of resistance emergence given the multitarget strategy. With this goal in mind, in the present study, we report the combination between the chemotherapeutic drug doxorubicin (DOXO) and the photosensitizing agent pheophorbide a (PhA) to inactivate HeLa cells. Photophysical studies revealed that DOXO can quench the excited states of PhA, detracting from its photosensitizing ability. DOXO can itself photosensitize the production of singlet oxygen; however, this is largely suppressed when bound to DNA. Photodynamic treatments of cells incubated with DOXO and PhA led to different outcomes depending on the concentrations and administration protocols, ranging from antagonistic to synergic for the same concentrations. Taken together, the results indicate that an appropriate combination of DOXO with PhA and red light may produce improved cytotoxicity with a smaller dose of the chemotherapeutic drug, as a result of the different subcellular localization, targets and mode of action of the two agents.
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Affiliation(s)
- Rubén Ruiz-González
- Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain.
| | - Paula Milán
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Darwin 2, 28049 Cantoblanco-Madrid, Spain.
| | - Roger Bresolí-Obach
- Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain.
| | - Juan Carlos Stockert
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Darwin 2, 28049 Cantoblanco-Madrid, Spain.
| | - Angeles Villanueva
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Darwin 2, 28049 Cantoblanco-Madrid, Spain.
| | - Magdalena Cañete
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Darwin 2, 28049 Cantoblanco-Madrid, Spain.
| | - Santi Nonell
- Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain.
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29
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Champa D, Orlacchio A, Patel B, Ranieri M, Shemetov AA, Verkhusha VV, Cuervo AM, Di Cristofano A. Obatoclax kills anaplastic thyroid cancer cells by inducing lysosome neutralization and necrosis. Oncotarget 2016; 7:34453-71. [PMID: 27144341 PMCID: PMC5085168 DOI: 10.18632/oncotarget.9121] [Citation(s) in RCA: 17] [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: 03/16/2016] [Accepted: 04/16/2016] [Indexed: 12/03/2022] Open
Abstract
Poorly differentiated and anaplastic thyroid carcinomas are very aggressive, almost invariably lethal neoplasms for which no effective treatment exists. These tumors are intrinsically resistant to cell death, even when their driver oncogenic signaling pathways are inhibited.We have undertaken a detailed analysis, in mouse and human thyroid cancer cells, of the mechanism through which Obatoclax, a pan-inhibitor of the anti-apoptotic proteins of the BCL2 family, effectively reduces tumor growth in vitro and in vivo.We demonstrate that Obatoclax does not induce apoptosis, but rather necrosis of thyroid cancer cells, and that non-transformed thyroid cells are significantly less affected by this compound. Surprisingly, we show that Obatoclax rapidly localizes to the lysosomes and induces loss of acidification, block of lysosomal fusion with autophagic vacuoles, and subsequent lysosomal permeabilization. Notably, prior lysosome neutralization using different V-ATPase inhibitors partially protects cancer cells from the toxic effects of Obatoclax. Although inhibition of autophagy does not affect Obatoclax-induced cell death, selective down-regulation of ATG7, but not of ATG5, partially impairs Obatoclax effects, suggesting the existence of autophagy-independent functions for ATG7. Strikingly, Obatoclax killing activity depends only on its accumulation in the lysosomes, and not on its interaction with BCL2 family members.Finally, we show that also other lysosome-targeting compounds, Mefloquine and LLOMe, readily induce necrosis in thyroid cancer cells, and that Mefloquine significantly impairs tumor growth in vivo, highlighting a clear vulnerability of these aggressive, apoptosis-resistant tumors that can be therapeutically exploited.
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Affiliation(s)
- Devora Champa
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Arturo Orlacchio
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Bindi Patel
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Michela Ranieri
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Anton A Shemetov
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Vladislav V Verkhusha
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Ana Maria Cuervo
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Antonio Di Cristofano
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
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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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31
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Abstract
Photodynamic therapy (PDT) offers a new approach to selective tumor eradication. Modifications designed to increase and optimize efficacy continue to emerge. Selective photodamage to malignant cells and their environment can bring about tumor cell destruction, shutdown of the tumor vasculature, stimulation of immunologic anti-tumor effects and potentiation of other therapeutic effects. Current development of combination protocols may provide a better rationale for integration of PDT into clinical practice. An example described here is the ability of a sequential (two-sensitizer) PDT protocol to enhance the efficacy of photokilling. The first step involves low-level lysosomal photodamage that has been shown to promote the apoptotic response to subsequent photodynamic effects directed at mitochondria. In this report, we demonstrate the ability of Photofrin, an FDA-approved photosensitizing agent, to serve as either the first or second element of the sequential protocol.
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Affiliation(s)
- David Kessel
- Department of Pharmacology, Wayne State University School of Medicine, Detroit MI, USA
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32
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Aggarwal N, Santiago AM, Kessel D, Sloane BF. Photodynamic therapy as an effective therapeutic approach in MAME models of inflammatory breast cancer. Breast Cancer Res Treat 2015; 154:251-62. [PMID: 26502410 DOI: 10.1007/s10549-015-3618-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 10/20/2015] [Indexed: 12/18/2022]
Abstract
Photodynamic therapy (PDT) is a minimally invasive, FDA-approved therapy for treatment of endobronchial and esophageal cancers that are accessible to light. Inflammatory breast cancer (IBC) is an aggressive and highly metastatic form of breast cancer that spreads to dermal lymphatics, a site that would be accessible to light. IBC patients have a relatively poor survival rate due to lack of targeted therapies. The use of PDT is underexplored for breast cancers but has been proposed for treatment of subtypes for which a targeted therapy is unavailable. We optimized and used a 3D mammary architecture and microenvironment engineering (MAME) model of IBC to examine the effects of PDT using two treatment protocols. The first protocol used benzoporphyrin derivative monoacid A (BPD) activated at doses ranging from 45 to 540 mJ/cm(2). The second PDT protocol used two photosensitizers: mono-L-aspartyl chlorin e6 (NPe6) and BPD that were sequentially activated. Photokilling by PDT was assessed by live-dead assays. Using a MAME model of IBC, we have shown a significant dose-response in photokilling by BPD-PDT. Sequential activation of NPe6 followed by BPD is more effective in photokilling of tumor cells than BPD alone. Sequential activation at light doses of 45 mJ/cm(2) for each agent resulted in >90 % cell death, a response only achieved by BPD-PDT at a dose of 360 mJ/cm(2). Our data also show that effects of PDT on a volumetric measurement of 3D MAME structures reflect efficacy of PDT treatment. Our study is the first to demonstrate the potential of PDT for treating IBC.
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Affiliation(s)
- Neha Aggarwal
- Department of Physiology, Wayne State University School of Medicine, 540 East Canfield, Detroit, MI, 48201, USA.
| | - Ann Marie Santiago
- Department of Pharmacology, Wayne State University School of Medicine, 540 East Canfield, Detroit, MI, 48201, USA.
| | - David Kessel
- Department of Pharmacology, Wayne State University School of Medicine, 540 East Canfield, Detroit, MI, 48201, USA.
| | - Bonnie F Sloane
- Department of Pharmacology, Wayne State University School of Medicine, 540 East Canfield, Detroit, MI, 48201, USA.
- Department of Oncology, Wayne State University School of Medicine, 540 East Canfield, Detroit, MI, 48201, USA.
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Mehraban N, Freeman HS. Developments in PDT Sensitizers for Increased Selectivity and Singlet Oxygen Production. MATERIALS (BASEL, SWITZERLAND) 2015; 8:4421-4456. [PMID: 28793448 PMCID: PMC5455656 DOI: 10.3390/ma8074421] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 06/29/2015] [Accepted: 07/07/2015] [Indexed: 12/20/2022]
Abstract
Photodynamic therapy (PDT) is a minimally-invasive procedure that has been clinically approved for treating certain types of cancers. This procedure takes advantage of the cytotoxic activity of singlet oxygen (¹O₂) and other reactive oxygen species (ROS) produced by visible and NIR light irradiation of dye sensitizers following their accumulation in malignant cells. The main two concerns associated with certain clinically-used PDT sensitizers that have been influencing research in this arena are low selectivity toward malignant cells and low levels of ¹O₂ production in aqueous media. Solving the selectivity issue would compensate for photosensitizer concerns such as dark toxicity and aggregation in aqueous media. One main approach to enhancing dye selectivity involves taking advantage of key methods used in pharmaceutical drug delivery. This approach lies at the heart of the recent developments in PDT research and is a point of emphasis in the present review. Of particular interest has been the development of polymeric micelles as nanoparticles for delivering hydrophobic (lipophilic) and amphiphilic photosensitizers to the target cells. This review also covers methods employed to increase ¹O₂ production efficiency, including the design of two-photon absorbing sensitizers and triplet forming cyclometalated Ir(III) complexes.
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Affiliation(s)
- Nahid Mehraban
- Fiber & Polymer Science Program, North Carolina State University, Raleigh, NC 27695-8301, USA
| | - Harold S Freeman
- Fiber & Polymer Science Program, North Carolina State University, Raleigh, NC 27695-8301, USA.
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34
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Kessel D. More Adventures in Photodynamic Therapy. Int J Mol Sci 2015; 16:15188-93. [PMID: 26151850 PMCID: PMC4519894 DOI: 10.3390/ijms160715188] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 06/23/2015] [Accepted: 06/23/2015] [Indexed: 11/21/2022] Open
Abstract
Photodynamic therapy is a procedure that can provide a selective eradication of neoplastic disease if sufficient drug, light, and oxygen are available. As this description suggests, it involves the photosensitization of malignant tissues to irradiation with photons in the visible range. While not suitable for tumors at unknown loci, it can be of use for eradication of cancer at surgical margins and therapy at sites where substantial surgery might otherwise be involved. Drug development has been delayed by several factors including the reluctance of major pharmaceutical firms in the United States to invest in this technology along with some unwise approaches in the past.
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Affiliation(s)
- David Kessel
- Department of Pharmacology, Wayne State University School of Medicine, 540 E Canfield Street, Detroit, MI 48201, USA.
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