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Zhou X, Ying X, Wu L, Liu L, Wang Y, He Y, Han M. Research Progress of Natural Product Photosensitizers in Photodynamic Therapy. PLANTA MEDICA 2024; 90:368-379. [PMID: 38423033 DOI: 10.1055/a-2257-9194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Photodynamic therapy is a noninvasive cancer treatment that utilizes photosensitizers to generate reactive oxygen species upon light exposure, leading to tumor cell apoptosis. Although photosensitizers have shown efficacy in clinical practice, they are associated with certain disadvantages, such as a certain degree of toxicity and limited availability. Recent studies have shown that natural product photosensitizers offer promising options due to their low toxicity and potential therapeutic effects. In this review, we provide a summary and evaluation of the current clinical photosensitizers that are commonly used and delve into the anticancer potential of natural product photosensitizers like psoralens, quinonoids, chlorophyll derivatives, curcumin, chrysophanol, doxorubicin, tetracyclines, Leguminosae extracts, and Lonicera japonica extract. The emphasis is on their phototoxicity, pharmacological benefits, and effectiveness against different types of diseases. Novel and more effective natural product photosensitizers for future clinical application are yet to be explored in further research. In conclusion, natural product photosensitizers have potential in photodynamic therapy and represent a promising area of research for cancer treatment.
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Affiliation(s)
- Xiaoxia Zhou
- Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine, Hangzhou, China
| | - Xufang Ying
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Linjie Wu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Liqin Liu
- Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine, Hangzhou, China
| | - Ying Wang
- Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine, Hangzhou, China
| | - Ying He
- Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine, Hangzhou, China
| | - Min Han
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
- Department of Radiation Oncology, Key Laboratory of Cancer Prevention and Intervention, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Hangzhou Institute of Innovative Medicine, Zhejiang University, Hangzhou, China
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Hayashi T, Hayashi K, Terashima T, Nishitani M, Orita N, Miyazawa M, Seki A, Nakagawa H, Nio K, Iida N, Yamada S, Takatori H, Shimakami T, Yamashita T. Photodynamic therapy with talaporfin sodium for endoscopically unresectable gastric cancer using a novel simultaneous light-emitting method. DEN OPEN 2024; 4:e334. [PMID: 38264465 PMCID: PMC10804183 DOI: 10.1002/deo2.334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/25/2023] [Accepted: 12/30/2023] [Indexed: 01/25/2024]
Abstract
We describe a case of gastric cancer treated by photodynamic therapy (PDT) with talaporfin sodium using a novel simultaneous light-emitting method. An 82-year-old man was diagnosed with gastric cancer near the cardia with suspected deep submucosal invasion. Surgical resection was deemed high-risk owing to an underlying pulmonary disease. After ruling out endoscopic procedures due to intense fibrosis resulting from the scarring, PDT with talaporfin sodium was chosen. PDT was successfully conducted using an endoscope with simultaneous light emission. The patient experienced a complete response to the treatment and showed no signs of recurrence during follow-up. This case highlights the potential of PDT with talaporfin sodium as a viable alternative for challenging cases, particularly in patients unsuitable for surgery and endoscopic resection. Furthermore, the novel simultaneous light-emitting method may improve the efficiency of the procedure. This case demonstrates the potential of PDT in gastric cancer treatment, especially for high-risk patients.
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Affiliation(s)
- Tomoyuki Hayashi
- Department of GastroenterologyKanazawa University HospitalIshikawaJapan
| | - Kotaro Hayashi
- Department of GastroenterologyKanazawa University HospitalIshikawaJapan
| | - Takeshi Terashima
- Department of GastroenterologyKanazawa University HospitalIshikawaJapan
| | - Masaki Nishitani
- Department of GastroenterologyKanazawa University HospitalIshikawaJapan
| | - Noriaki Orita
- Department of GastroenterologyKanazawa University HospitalIshikawaJapan
| | - Masaki Miyazawa
- Department of GastroenterologyKanazawa University HospitalIshikawaJapan
| | - Akihiro Seki
- Department of GastroenterologyKanazawa University HospitalIshikawaJapan
| | | | - Kouki Nio
- Department of GastroenterologyKanazawa University HospitalIshikawaJapan
| | - Noriho Iida
- Department of GastroenterologyKanazawa University HospitalIshikawaJapan
| | - Shinya Yamada
- Department of GastroenterologyKanazawa University HospitalIshikawaJapan
| | - Hajime Takatori
- Department of GastroenterologyKanazawa University HospitalIshikawaJapan
| | - Tetsuro Shimakami
- Department of GastroenterologyKanazawa University HospitalIshikawaJapan
| | - Taro Yamashita
- Department of GastroenterologyKanazawa University HospitalIshikawaJapan
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Shanazarov NA, Zare A, Mussin NM, Albayev RK, Kaliyev AA, Iztleuov YM, Smailova SB, Tamadon A. Photodynamic therapy of cervical cancer: a scoping review on the efficacy of various molecules. Ther Adv Chronic Dis 2024; 15:20406223241233206. [PMID: 38440782 PMCID: PMC10910886 DOI: 10.1177/20406223241233206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/25/2024] [Indexed: 03/06/2024] Open
Abstract
Background Cervical cancer poses a considerable worldwide health issue, where infection with the human papillomavirus (HPV) plays a vital role as a risk factor. Photodynamic therapy (PDT) is a minimally invasive treatment for HPV-related cervical lesions, which uses photosensitizers and light to selectively destroy abnormal cells. Objectives Our objective is to present a comprehensive overview of the different types of molecules employed in PDT to reduce the occurrence and fatality rates associated with cervical cancer. Design Scoping review and bibliometric analysis. Methods The article explores clinical trials investigating the efficacy of PDT in treating low-grade squamous intraepithelial lesion and high-grade squamous intraepithelial lesion, as well as preclinical approaches utilizing various molecules for PDT in cervical cancer. Furthermore, the article sheds light on potential molecules for PDT enhancement, examining their properties through computer modeling simulations, molecular docking, and assessing their advantages and disadvantages. Results Our findings demonstrate that PDT holds promise as a therapeutic approach for treating cervical lesions associated with HPV and cervical cancer. Additionally, we observe that the utilization of diverse dye classes enhances the anticancer effects of PDT. Conclusion Among the various molecules employed in PDT, functionalized fullerene exhibits a notable inclination toward overexpressed receptors in cervical cancer cells, making it a potential candidate for intensified use in PDT. However, further research is needed to evaluate its long-term effectiveness and safety.
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Affiliation(s)
- Nasrulla Abdullaevich Shanazarov
- Department of Oncology, Medical Centre Hospital of President’s Affairs Administration of the Republic of Kazakhstan, Astana, Kazakhstan
| | | | | | - Rustam Kuanyshbekovich Albayev
- Department of Cardiosurgery, Medical Centre Hospital of President’s Affairs Administration of the Republic of Kazakhstan, Astana, Kazakhstan
| | | | | | - Sandugash Bakhytbekovna Smailova
- Department of Radiology, Medical Centre Hospital of President’s Affairs Administration of the Republic of Kazakhstan, Astana, Kazakhstan
- Department for Natural Sciences, West Kazakhstan Marat Ospanov Medical University, Aktobe, Kazakhstan
| | - Amin Tamadon
- PerciaVista R&D Co. Shiraz, Iran
- Department for Natural Sciences, West Kazakhstan Marat Ospanov Medical University, Maresyev St, Aktobe 030019, Kazakhstan
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Chen H, Hu Y, Zhuang Z, Wang D, Ye Z, Jing J, Cheng X. Advancements and Obstacles of PARP Inhibitors in Gastric Cancer. Cancers (Basel) 2023; 15:5114. [PMID: 37958290 PMCID: PMC10647262 DOI: 10.3390/cancers15215114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 11/15/2023] Open
Abstract
Gastric cancer (GC) is a common and aggressive cancer of the digestive system, exhibiting high aggressiveness and significant heterogeneity. Despite advancements in improving survival rates over the past few decades, GC continues to carry a worrisome prognosis and notable mortality. As a result, there is an urgent need for novel therapeutic approaches to address GC. Recent targeted sequencing studies have revealed frequent mutations in DNA damage repair (DDR) pathway genes in many GC patients. These mutations lead to an increased reliance on poly (adenosine diphosphate-ribose) polymerase (PARP) for DNA repair, making PARP inhibitors (PARPi) a promising treatment option for GC. This article presents a comprehensive overview of the rationale and development of PARPi, highlighting its progress and challenges in both preclinical and clinical research for treating GC.
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Affiliation(s)
- Hongjie Chen
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China; (H.C.); (Y.H.); (D.W.)
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China;
| | - Yangchan Hu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China; (H.C.); (Y.H.); (D.W.)
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China;
| | - Zirui Zhuang
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China;
- School of Molecular Medicine, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences (UCAS), Hangzhou 310024, China
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Dingyi Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China; (H.C.); (Y.H.); (D.W.)
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China;
| | - Zu Ye
- Department of Gastric Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China;
- Zhejiang Key Laboratory of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer, Hangzhou 310022, China
| | - Ji Jing
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China;
- Zhejiang Key Laboratory of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer, Hangzhou 310022, China
| | - Xiangdong Cheng
- Department of Gastric Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China;
- Zhejiang Key Laboratory of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer, Hangzhou 310022, China
- Zhejiang Provincial Research Center for Upper Gastrointestinal Tract Cancer, Zhejiang Cancer Hospital, Hangzhou 310022, China
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Algorri JF, López-Higuera JM, Rodríguez-Cobo L, Cobo A. Advanced Light Source Technologies for Photodynamic Therapy of Skin Cancer Lesions. Pharmaceutics 2023; 15:2075. [PMID: 37631289 PMCID: PMC10458875 DOI: 10.3390/pharmaceutics15082075] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/18/2023] [Accepted: 07/21/2023] [Indexed: 08/27/2023] Open
Abstract
Photodynamic therapy (PDT) is an increasingly popular dermatological treatment not only used for life-threatening skin conditions and other tumors but also for cosmetic purposes. PDT has negligible effects on underlying functional structures, enabling tissue regeneration feasibility. PDT uses a photosensitizer (PS) and visible light to create cytotoxic reactive oxygen species, which can damage cellular organelles and trigger cell death. The foundations of modern photodynamic therapy began in the late 19th and early 20th centuries, and in recent times, it has gained more attention due to the development of new sources and PSs. This review focuses on the latest advancements in light technology for PDT in treating skin cancer lesions. It discusses recent research and developments in light-emitting technologies, their potential benefits and drawbacks, and their implications for clinical practice. Finally, this review summarizes key findings and discusses their implications for the use of PDT in skin cancer treatment, highlighting the limitations of current approaches and providing insights into future research directions to improve both the efficacy and safety of PDT. This review aims to provide a comprehensive understanding of PDT for skin cancer treatment, covering various aspects ranging from the underlying mechanisms to the latest technological advancements in the field.
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Affiliation(s)
- José Francisco Algorri
- Photonics Engineering Group, University of Cantabria, 39005 Santander, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain;
- Instituto de Investigación Sanitaria Valdecilla (IDIVAL), 39011 Santander, Spain
| | - José Miguel López-Higuera
- Photonics Engineering Group, University of Cantabria, 39005 Santander, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain;
- Instituto de Investigación Sanitaria Valdecilla (IDIVAL), 39011 Santander, Spain
| | - Luís Rodríguez-Cobo
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain;
| | - Adolfo Cobo
- Photonics Engineering Group, University of Cantabria, 39005 Santander, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain;
- Instituto de Investigación Sanitaria Valdecilla (IDIVAL), 39011 Santander, Spain
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Olszowy M, Nowak-Perlak M, Woźniak M. Current Strategies in Photodynamic Therapy (PDT) and Photodynamic Diagnostics (PDD) and the Future Potential of Nanotechnology in Cancer Treatment. Pharmaceutics 2023; 15:1712. [PMID: 37376160 DOI: 10.3390/pharmaceutics15061712] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/03/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023] Open
Abstract
Photodynamic diagnostics (PDD) and photodynamic therapy (PDT) are well-established medical technologies used for the diagnosis and treatment of malignant neoplasms. They rely on the use of photosensitizers, light and oxygen to visualize or eliminate cancer cells. This review demonstrates the recent advancements in these modalities with the use of nanotechnology, including quantum dots as innovative photosensitizers or energy donors, liposomes and micelles. Additionally, this literature review explores the combination of PDT with radiotherapy, chemotherapy, immunotherapy, and surgery for treating various neoplasms. The article also focuses on the latest achievements in PDD and PDT enhancements, which seem to be very promising in the field of oncology.
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Affiliation(s)
- Marta Olszowy
- Department of Clinical and Experimental Pathology, Division of General and Experimental Pathology, Wroclaw Medical University, 50-368 Wroclaw, Poland
| | - Martyna Nowak-Perlak
- Department of Clinical and Experimental Pathology, Division of General and Experimental Pathology, Wroclaw Medical University, 50-368 Wroclaw, Poland
| | - Marta Woźniak
- Department of Clinical and Experimental Pathology, Division of General and Experimental Pathology, Wroclaw Medical University, 50-368 Wroclaw, Poland
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Jia L, Fu Y, Zhang N, Liu Y, Su L, Wang H, Zhao W. Directional conjugation of Trop2 antibody to black phosphorus nanosheets for phototherapy in orthotopic gastric carcinoma. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2023; 51:102687. [PMID: 37121458 DOI: 10.1016/j.nano.2023.102687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 03/29/2023] [Accepted: 04/24/2023] [Indexed: 05/02/2023]
Abstract
Tumor-associated calcium signal transducer 2 (Trop2) highly specific expression in gastric carcinoma (GC). The combination of Trop2 antibody and phototherapy agents could exhibit synergetic antitumor activity. Black phosphorus nanosheets (BP) are covalently modified with Trop2 IgG antibodies via heterobifunctional linker of polyethylene glycol (PEG). Then the Trop2 antibody was directionally conjugated to BP via Schiff base reaction between aldehyde group from oxidized Trop2 antibody and amino group of PEG. The Trop2-funcationalzied BP can significantly increase the endocytosis of BP in Trop2-positive GC cells exhibiting a reinforced antitumor activity under near infrared (NIR) irradiation. More importantly, a murine orthotopic GC model demonstrates that Trop2 antibody modification can significantly promote the accumulation of BP at tumor tissues and strengthen antitumoral activity of phototherapy. Directional conjugation of Trop2 antibody to BP facilitates the BP with superior stability, tumor targeting ability and excellent anti-tumor activity under NIR irradiation without systemic toxicity.
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Affiliation(s)
- Lizhou Jia
- Central Laboratory, Bayannur Hospital, Bayannur 015000, China
| | - Yuhao Fu
- Central Laboratory, Bayannur Hospital, Bayannur 015000, China; Basic Medical Sciences College, Inner Mongolia Medical University, Hohhot 010050, China
| | - Ning Zhang
- Central Laboratory, Bayannur Hospital, Bayannur 015000, China
| | - Yang Liu
- Central Laboratory, Bayannur Hospital, Bayannur 015000, China
| | - Lin Su
- Otolaryngology Head and Neck Surgery, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - Haisheng Wang
- Basic Medical Sciences College, Inner Mongolia Medical University, Hohhot 010050, China.
| | - Wei Zhao
- Department of Pathology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210012, China.
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Kurumi H, Kanda T, Ikebuchi Y, Yoshida A, Kawaguchi K, Yashima K, Isomoto H. Current Status of Photodynamic Diagnosis for Gastric Tumors. Diagnostics (Basel) 2021; 11:diagnostics11111967. [PMID: 34829314 PMCID: PMC8618298 DOI: 10.3390/diagnostics11111967] [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: 08/30/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 01/06/2023] Open
Abstract
Although the recent development and widespread use of image-enhanced endoscopy and magnifying endoscopy have improved endoscopic diagnosis of gastric cancer, it is somewhat complicated, requires a higher level of expertise, and is still subjective. Photodynamic endoscopic diagnosis (PDED) is based on the fluorescence of photosensitizers that accumulate in tumors, which enables objective evaluation independent of the endoscopist’s experience, and is useful for tumor detection. The objective of this work was to perform a narrative review of PDED for gastric tumors and to introduce our approach to PDED in gastric tumors in our hospital. In our review there have been case reports of PDED for gastric cancer, but its usefulness has not been established because no prospective studies evaluating its usefulness have been performed. In our previous study, 85.7% (42/49) of gastric tumors exhibited fluorescence in PDED. PDED may be useful in the diagnosis of early gastric cancer. Our previous studies were pilot studies in cancer patients; therefore, future prospective studies are required to verify the usefulness of PDED.
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Affiliation(s)
| | | | | | | | | | | | - Hajime Isomoto
- Correspondence: ; Tel.: +81-859-38-6527; Fax: +81-859-38-6529
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Hayashi T, Asahina Y, Nakanishi H, Terashima T, Okamoto K, Yamada S, Takatori H, Kitamura K, Mizukoshi E, Ninomiya I, Kaneko S. Evaluation of the efficacy and safety of salvage photodynamic therapy by talaporfin sodium for cervical esophageal cancers and lesions larger than 3 cm. Esophagus 2021; 18:645-654. [PMID: 33201316 DOI: 10.1007/s10388-020-00799-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/04/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND Salvage photodynamic therapy with talaporfin sodium has a high local control rate for esophageal cancer after definitive chemoradiotherapy. The eligibility criteria for photodynamic therapy include the absence of invasion to the cervical esophagus and a 3 cm maximum longitudinal lesion length. There is little evidence regarding the efficacy and safety of lesions outside the eligibility criteria. This retrospective cohort study evaluated the efficacy and safety of photodynamic therapy of such lesions. METHODS Patients with consecutive lesions between February 2016 and May 2020 (n = 36) were enrolled. The local complete response rates and adverse events were compared between patients with cervical and non-cervical lesions and those with lesions larger and smaller than 3 cm. RESULTS The local complete response rate was 77.8% and was significantly lower in cervical than in non-cervical lesions (20.0% vs 80.6%, p = 0.005). Esophageal stricture, laryngeal pain, and fever were significantly higher in the cervical than in the non-cervical lesion group; however, the detected adverse events were up to grade 2. Laser exposure dose was high in lesions larger than 3 cm (median, 650 vs 400 J; p < 0.001). No significant differences in local complete response rates and adverse effects were noted. One case involving a lesion larger than 3 cm needed balloon dilations for esophageal stricture. CONCLUSIONS Although salvage esophageal photodynamic therapy was effective for local control with acceptable safety after definitive chemoradiotherapy failure, photodynamic therapy toward cervical lesions had a statistically lower local complete response rate. Lesions larger than 3 cm may be considered treatable.
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Affiliation(s)
- Tomoyuki Hayashi
- Department of Gastroenterology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan.
| | - Yoshiro Asahina
- Department of Gastroenterology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hiroyoshi Nakanishi
- Department of Gastroenterology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Takeshi Terashima
- Department of Gastroenterology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Koichi Okamoto
- Department of Gastrointestinal Surgery, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Shinya Yamada
- Department of Gastroenterology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hajime Takatori
- Department of Gastroenterology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Kazuya Kitamura
- Department of Gastroenterology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Eishiro Mizukoshi
- Department of Gastroenterology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Itasu Ninomiya
- Department of Gastrointestinal Surgery, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Shuichi Kaneko
- Department of Gastroenterology, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan
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10
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Clinical Practice of Photodynamic Therapy Using Talaporfin Sodium for Esophageal Cancer. J Clin Med 2021; 10:jcm10132785. [PMID: 34202917 PMCID: PMC8268336 DOI: 10.3390/jcm10132785] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/18/2021] [Accepted: 06/21/2021] [Indexed: 12/28/2022] Open
Abstract
Photodynamic therapy (PDT) using a conventional photosensitizer was approved for esophageal cancer in the early 1990s; however, it was replaced by other conventional treatment modalities in clinical practice because of the high frequency of cutaneous phototoxicity and esophageal stricture after the procedure. The second-generation photosensitizer, talaporfin sodium, which features more rapid clearance from the body, was developed to reduce skin phototoxicity, and talaporfin sodium can be excited at longer-wavelength lights comparing with a conventional photosensitizer. Endoscopic PDT using talaporfin sodium was initially developed for the curative treatment of central-type early lung cancer in Japan, and was approved in the early 2000s. After preclinical experiments, PDT using talaporfin sodium was investigated for patients with local failure after chemoradiotherapy, which was the most serious unmet need in the practice of esophageal cancer. According to the favorable results of a multi-institutional clinical trial, PDT using talaporfin sodium was approved as an endoscopic salvage treatment for patients with local failure after chemoradiotherapy for esophageal cancer. While PDT using talaporfin sodium is gradually spreading in clinical practice, further evaluation at the point of clinical benefit is necessary to determine the importance of PDT in the treatment of esophageal cancer.
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Sonokawa T, Matsumoto M, Takegahara K, Inoue T, Enomoto Y, Usuda J. Usefulness of simultaneous type image-enhanced endoscope system in photodynamic therapy for centrally located lung cancer. Photodiagnosis Photodyn Ther 2021; 35:102345. [PMID: 34033936 DOI: 10.1016/j.pdpdt.2021.102345] [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: 01/11/2021] [Revised: 05/09/2021] [Accepted: 05/14/2021] [Indexed: 11/15/2022]
Abstract
BACKGROUND Photodynamic therapy (PDT) is established as one of the standard treatment options for centrally located early lung cancer. In order to improve the effectiveness of PDT, it is very important to accurately diagnose the extent of the tumor and focus the laser irradiation accurately. With the use of the conventional video-endoscope system, which adopts the frame-sequential (RGB-based) display method, mainly used in Japan, for PDT laser irradiation, the system only recognizes the strong white light, and color information is lost. Therefore, it is difficult to irradiate the lesion while simultaneously observing the lesion. In this study, we investigated the usefulness of a new type of video-endoscope system during PDT. METHODS We used ELUXEO 7000® (FUJIFILM, Japan), which is a simultaneous-type video-endoscope system that has been in use at Nippon Medical School Hospital since October 2018. We analyzed the clinical usefulness of the ELUXEO® system for PDT as compared to other endoscope systems, such as EVIS LUCERA ELITE® (Olympus, Japan), an autofluorescence imaging (AFI) system. RESULTS After the administration of talaporfin sodium for PDT, the tumor lesion was not visualized in magenta color with AFI, yielding false-negative results. On the other hand, no false-negative results after the administration of talaporfin sodium were obtained with the use of ELUXEO®. Using the ELUXEO® system in the blue light imaging (BLI) mode, we were able to deliver a red laser light while observing the extent of the tumor. Missed laser exposure was avoided and the accuracy of PDT was improved with the use of this system. CONCLUSIONS ELUXEO® is useful for accurate evaluation of the extent of centrally located lung cancer and therefore, for accurate laser irradiation of the tumor lesion.
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Affiliation(s)
- Takumi Sonokawa
- Department of Thoracic Surgery, Nippon Medical School Hospital, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Mitsuo Matsumoto
- Department of Thoracic Surgery, Nippon Medical School Hospital, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Kyoshiro Takegahara
- Department of Thoracic Surgery, Nippon Medical School Hospital, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Tatsuya Inoue
- Department of Thoracic Surgery, Nippon Medical School Hospital, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Yutaka Enomoto
- Department of Thoracic Surgery, Nippon Medical School Hospital, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Jitsuo Usuda
- Department of Thoracic Surgery, Nippon Medical School Hospital, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan.
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Ogbonna SJ, Hazama H, Awazu K. Mass Spectrometric Analysis of the Photobleaching of Protoporphyrin IX Used in Photodynamic Diagnosis and Therapy of Cancer. Photochem Photobiol 2021; 97:1089-1096. [PMID: 33687739 DOI: 10.1111/php.13411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 11/30/2022]
Abstract
Photobleaching and photoproduct formations are considered essential phenomena in improving the efficacy of photodynamic diagnosis and therapy (PDD and PDT). We investigated the photobleaching of protoporphyrin IX (PpIX) by measuring its concentration with mass spectrometry (MS). The reduction in the concentration of PpIX dissolved in dimethyl sulfoxide was measured during PDD and PDT conditions using lasers with wavelengths of 405 and 635 nm, respectively, at a power density of 10, 50 or 100 mW/cm2 . The obtained results were compared with the results of conventional fluorescence spectroscopy and previously reported results. Our results demonstrate the variation in the MS-based photobleaching coefficient of PpIX with the power density, while the fluorescence-based photobleaching coefficient was independent of the power density. The results of MS also show faster photobleaching of PpIX in comparison with that obtained from fluorescence. The difference may be attributed to the change in the fluorescence quantum yield of PpIX with its concentration and the effect of fluorescence emission from the PpIX photoproducts. Thus, an MS-based investigation of the photobleaching poses to be a more stable investigation form. Our finding highlights the importance of recognizing the potential significance of these discoveries in the PDD and PDT dosimetry and efficacy.
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Affiliation(s)
| | - Hisanao Hazama
- Graduate School of Engineering, Osaka University, Osaka, Japan
| | - Kunio Awazu
- Graduate School of Engineering, Osaka University, Osaka, Japan.,Global Center for Medical Engineering and Informatics, Osaka University, Osaka, Japan.,Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
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Tanaka M, Sasaki M, Suzuki T, Nishie H, Kataoka H. Combination of talaporfin photodynamic therapy and Poly (ADP-Ribose) polymerase (PARP) inhibitor in gastric cancer. Biochem Biophys Res Commun 2021; 539:1-7. [PMID: 33388624 DOI: 10.1016/j.bbrc.2020.12.073] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 12/20/2020] [Indexed: 01/02/2023]
Abstract
Photodynamic therapy (PDT) utilizes photochemical reactions induced by a photosensitizer and light in the target tissue and is used to treat various cancers. There is a high degree of anticipation of success regarding the application of PDT with talaporfin (photosensitizer) for gastric cancer. Olaparib is an oral inhibitor of Poly (ADP-Ribose) polymerase (PARP) and has demonstrated optimal efficacy and clinical activity in trials. Therefore, the aim of the present study was to investigate the efficacy of talaporfin PDT combined with olaparib for gastric cancer. MKN45, a gastric cancer cell line, was incubated with talaporfin, followed by irradiation, in the presence/absence of olaparib. Talaporfin PDT and olaparib exhibited excellent synergistic action in a concentration-dependent manner. PARP-DNA complexes were characterized based on bound chromatin using Western blot analyses. The combination of talaporfin PDT and olaparib enhanced PARP1 accumulation (the entrapment of PARP1-DNA complexes) in bound chromatin. The combination of talaporfin PDT and olaparib induced DNA double-strand breaks, which was confirmed by evaluating phosphorylated histone H2AX. Xenograft tumor mouse models were established, and antitumor effects were analyzed. In vivo, tumor growth was significantly suppressed following PDT with talaporfin and olaparib. Our results demonstrated that olaparib enhances the efficacy of talaporfin PDT by inducing the formation of PARP-DNA complexes. Therefore, our results suggest that the combination of talaporfin PDT and olaparib is a potential antitumor therapy for gastric cancer.
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Affiliation(s)
- Mamoru Tanaka
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan.
| | - Makiko Sasaki
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan
| | - Taketo Suzuki
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan
| | - Hirotada Nishie
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan
| | - Hiromi Kataoka
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan
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14
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Clinical application of the mirror irradiation technique in photodynamic therapy for malignant glioma. Photodiagnosis Photodyn Ther 2020; 31:101956. [PMID: 32818648 DOI: 10.1016/j.pdpdt.2020.101956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/22/2020] [Accepted: 08/10/2020] [Indexed: 11/23/2022]
Abstract
BACKGROUND Intraoperative photodynamic therapy (PDT) using talaporfin sodium for malignant glioma is effective both in the experimental and in the clinical setting. Because the irradiation unit is fixed to the objective lens of the operating microscope, blind spots for irradiation exist. To overcome this problem, we developed a mirror reflecting system using a modified dental mirror. METHODS The developed mirror is made of stainless steel, has a mirror-polished surface, and is rhodium coated on 1 side, which is the reflecting surface. The reflection rate was measured using He-Ne laser irradiation. The reflection intensity was measured using a laser power meter when the incident angle to the mirror was changed to 60°, 45°, and 30°, and the reflectance was calculated by the direct received light intensity from the laser. After confirming the safety of the fundamental experiment, PDT was performed with this developed mirror on 9 patients with malignant glioma (4 with recurrence and 5 newly diagnosed). RESULTS The energy efficiency of the mirror was approximately 70 %, and apparent irregular reflection was not observed. Even during clinical use, apparent complications, such as irregular reflection, did not occur upon using the mirror in any of the patients. In all patients, recurrence did not occur in the site where mirror irradiation was performed, but in a deep site or a distant site to which sufficient laser irradiation did not reach. CONCLUSION PDT using our newly developed mirror involves few instrumental changes compared with the conventional irradiation method, and is effective, safe, and inexpensive.
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Mae Y, Kanda T, Sugihara T, Takata T, Kinoshita H, Sakaguchi T, Hasegawa T, Tarumoto R, Edano M, Kurumi H, Ikebuchi Y, Kawaguchi K, Isomoto H. Verteporfin-photodynamic therapy is effective on gastric cancer cells. Mol Clin Oncol 2020; 13:10. [PMID: 32754324 DOI: 10.3892/mco.2020.2081] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 05/15/2020] [Indexed: 01/18/2023] Open
Abstract
Photodynamic therapy (PDT) induces photochemical reactions, resulting in the destruction of tumor cells via singlet (S1) oxygen production. This cellular destruction occurs specifically in tumor cells, following selective accumulation of a photosensitizer and its excitation by a specific wavelength. Verteporfin (VP) is a second-generation photosensitizer that is currently being used worldwide in PDT to treat age-related macular degeneration. In addition, clinical trials with VP-PDT demonstrated anti-tumor efficacy and overall safety when used to treat locally advanced pancreatic cancer. In the present study, we examined the anti-tumor effect of VP-PDT on gastric cancer (GC) cell lines in vitro to conduct an initial assessment of its potential clinical applicability to this specific type of cancer. We evaluated the viability of MKN45 and MKN74 cancer cell lines after VP-PDT exposure and calculated the half maximal effective concentration (EC50) values for VP. Apoptosis in VP-PDT-exposed GC cells was observed. Furthermore, the EC50 values for a 30-min treatment with VP (2.5 J/cm2 of 660 nm LED light) were 0.61 and 1.21 µM for MKN45 and MKN74, respectively. When VP treatment times were increased, the EC50 values decreased. In conclusion, VP-PDT may be developed as an effective treatment for GC.
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Affiliation(s)
- Yukari Mae
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Tsutomu Kanda
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Takaaki Sugihara
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Tomoaki Takata
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Hidehito Kinoshita
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Takuki Sakaguchi
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Takashi Hasegawa
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Ryohei Tarumoto
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Mirai Edano
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Hiroki Kurumi
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Yuichiro Ikebuchi
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Koichiro Kawaguchi
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Hajime Isomoto
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
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Yano T, Wang KK. Photodynamic Therapy for Gastrointestinal Cancer. Photochem Photobiol 2020; 96:517-523. [DOI: 10.1111/php.13206] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/25/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Tomonori Yano
- Department of Gastroenterology and Endoscopy National Cancer Center Hospital East Kashiwa Japan
| | - Kenneth K. Wang
- Division of Gastroenterology and Hepatology Mayo Clinic Rochester MN
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Nishie H, Kataoka H, Yano S, Yamaguchi H, Nomoto A, Tanaka M, Kato A, Shimura T, Mizoshita T, Kubota E, Tanida S, Joh T. Excellent antitumor effects for gastrointestinal cancers using photodynamic therapy with a novel glucose conjugated chlorin e6. Biochem Biophys Res Commun 2018; 496:1204-1209. [PMID: 29408755 DOI: 10.1016/j.bbrc.2018.01.171] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 01/28/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND Photodynamic therapy (PDT) exploits the reaction between photosensitizer and irradiated light to generate potentially therapeutic reactive oxygen species such as singlet oxygen in cancer cells. We have reported several sugar-conjugated chlorins that express stronger antitumor effects in PDT than talaporfin sodium (TS), a second-generation photosensitizer clinically used in Japan. In this study, we developed a novel glucose-conjugated chlorin e6 (G-chlorin e6) and evaluated its antitumor effects. METHODS G-chlorin e6 was synthesized with a core photosensitizer chlorin e6 conjugated to glucose. We measured the half maximal inhibitory concentration (IC50) to compare the PDT effects of G-chlorin e6 and TS, and flow cytometry was performed to examine the accumulation of G-chlorin e6 in cancer cells. We also compared the accumulation of G-chlorin e6 between normal immortalized esophageal epithelial cells and esophageal cancer cells. Antitumor effects of G-chlorin e6 PDT were finally analyzed in allograft tumor mouse models. RESULTS PDT in vitro using G-chlorin e6 elicited 9, 000-34,000 times stronger antitumor effects than TS, and there was 70-190 times more G-chlorin e6 accumulated than TS by flow cytometry. G-chlorin e6 accumulated more selectively in esophageal cancer cells than in esophageal immortalized epithelial cells, and in an allograft model, PDT with G-chlorin e6 showed very strong antitumor effects and a 40% complete response (CR) rate. CONCLUSIONS G-chlorin e6 showed excellent tumor selectivity, and PDT using G-chlorin e6 revealed the strongest anti-tumor effects among all sugar-conjugated chlorins that we have studied. G-chlorin e6 is considered to be the best photosensitizer for next-generation PDT.
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Affiliation(s)
- Hirotada Nishie
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiromi Kataoka
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
| | - Shigenobu Yano
- Graduate School of Materials Science, Nara Institute of Science and Technology, Nara, Japan; Minerva Light Laboratory, L. C. C., Kyoto 619-0237, Japan; KYOUSEI Science Center for Life and Nature, Nara Women's University, Nara, Japan
| | - Hiroaki Yamaguchi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Akihiro Nomoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Mamoru Tanaka
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Akihisa Kato
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takaya Shimura
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Tsutomu Mizoshita
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Eiji Kubota
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Satoshi Tanida
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takashi Joh
- Departments of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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van Straten D, Mashayekhi V, de Bruijn HS, Oliveira S, Robinson DJ. Oncologic Photodynamic Therapy: Basic Principles, Current Clinical Status and Future Directions. Cancers (Basel) 2017; 9:cancers9020019. [PMID: 28218708 PMCID: PMC5332942 DOI: 10.3390/cancers9020019] [Citation(s) in RCA: 556] [Impact Index Per Article: 79.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/10/2017] [Accepted: 02/12/2017] [Indexed: 12/12/2022] Open
Abstract
Photodynamic therapy (PDT) is a clinically approved cancer therapy, based on a photochemical reaction between a light activatable molecule or photosensitizer, light, and molecular oxygen. When these three harmless components are present together, reactive oxygen species are formed. These can directly damage cells and/or vasculature, and induce inflammatory and immune responses. PDT is a two-stage procedure, which starts with photosensitizer administration followed by a locally directed light exposure, with the aim of confined tumor destruction. Since its regulatory approval, over 30 years ago, PDT has been the subject of numerous studies and has proven to be an effective form of cancer therapy. This review provides an overview of the clinical trials conducted over the last 10 years, illustrating how PDT is applied in the clinic today. Furthermore, examples from ongoing clinical trials and the most recent preclinical studies are presented, to show the directions, in which PDT is headed, in the near and distant future. Despite the clinical success reported, PDT is still currently underutilized in the clinic. We also discuss the factors that hamper the exploration of this effective therapy and what should be changed to render it a more effective and more widely available option for patients.
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Affiliation(s)
- Demian van Straten
- Cell Biology, Department of Biology, Science Faculty, Utrecht University, Utrecht 3584 CH, The Netherlands.
| | - Vida Mashayekhi
- Cell Biology, Department of Biology, Science Faculty, Utrecht University, Utrecht 3584 CH, The Netherlands.
| | - Henriette S de Bruijn
- Center for Optical Diagnostics and Therapy, Department of Otolaryngology-Head and Neck Surgery, Erasmus Medical Center, Postbox 204, Rotterdam 3000 CA, The Netherlands.
| | - Sabrina Oliveira
- Cell Biology, Department of Biology, Science Faculty, Utrecht University, Utrecht 3584 CH, The Netherlands.
- Pharmaceutics, Department of Pharmaceutical Sciences, Science Faculty, Utrecht University, Utrecht 3584 CG, The Netherlands.
| | - Dominic J Robinson
- Center for Optical Diagnostics and Therapy, Department of Otolaryngology-Head and Neck Surgery, Erasmus Medical Center, Postbox 204, Rotterdam 3000 CA, The Netherlands.
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Oinuma T, Nakamura T, Nishiwaki Y. Report on the National Survey of Photodynamic Therapy (PDT) for Gastric Cancer in Japan (a secondary publication). Laser Ther 2016; 25:87-98. [PMID: 27721560 DOI: 10.5978/islsm.16-or-06] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background and Aims: A national survey of photodynamic therapy (PDT) was carried out in order to understand the present situation in Japan and the efficacy of PDT for gastric cancer. Materials and Methods: A questionnaire concerning with PDT was sent to all hospitals performing or previously performed PDT. The answers were collected and analyzed. An additional investigation about efficacy of PDT for gastric cancer was conducted for the main 3 hospitals. Results: In 18 of 19 responded hospitals, PDT was performed for 386 cases of superficial early gastric cancer and for 27 cases of advanced gastric cancer. In the 3 main hospitals, a complete response was achieved in 42 of 57 patients (73.7%) of superficial early gastric cancer not indicated for surgery or other endoscopic treatments such as endoscopic submucosal dissection. No serious complication occurred. Conclusions: PDT has been shown to be a safe and effective treatment for early gastric cancer, not only for the intramucosal type, but also for the submucosal invasion. PDT will be one of the important endoscopic treatments for gastric cancer especially in a super ageing society like Japan.
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Affiliation(s)
- Takeshi Oinuma
- Nigamido Medical Clinic; Department of Gastroenterology, Dokkyo Medical University School of Medicine
| | - Tetsuya Nakamura
- Department of Gastroenterology, Dokkyo Medical University School of Medicine; Department of Medical Informatics, Dokkyo Medical University School of Medicine
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Abstract
Worldwide, the number of cancer cases is increasing. Typically, they are treated by either surgery or chemotherapy. However, these treatments may be undesirable in elderly patients or those who are under medication with antiplatelet drugs. Photodynamic therapy (PDT) represents a potentially attractive treatment option for these types of patients, since it does not involve surgery and has considerably reduced side effects compared to chemotherapy. Porphyrin, one of the most commonly used photosensitizers, has the convenient property of cancer-specific accumulation and therefore, is commonly used in PDT. However, the mechanism by which this cancer-specific accumulation occurs remains unclear. We previously reported that a heme-transport protein, HCP1, was capable of transporting porphyrin compounds. HCP1 expression is associated with increased hypoxia, although the detailed mechanism by which this regulation occurs is also unknown. Here, we review available data on the mechanism of regulation of HCP1 expression through mitochondrial reactive oxygen species (mitROS). Specifically, cancer cells show increased expression of HCP1 compared to normal cells and this over-expression is reduced in cancer cells over-expressing the mitROS scavenging enzyme manganese superoxide dismutase (MnSOD). Thus we conclude that mitROS is involved in regulating HCP1 expression.
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Affiliation(s)
- Hiromu Ito
- University of Tsukuba, Faculty of Medicine, Tsukuba, Japan
| | - Hirofumi Matsui
- University of Tsukuba, Faculty of Medicine, Tsukuba, Japan; Kyoto Prefectural University of Medicine, Kyoto, Japan
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Current status of photodynamic therapy in digestive tract carcinoma in Japan. Int J Mol Sci 2015; 16:3434-40. [PMID: 25690028 PMCID: PMC4346905 DOI: 10.3390/ijms16023434] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 01/15/2015] [Accepted: 01/30/2015] [Indexed: 12/17/2022] Open
Abstract
Photodynamic therapy (PDT) is an effective local treatment modality as a cancer-specific laser ablation in malignancy of some organs including digestive tracts or bile duct. In Japan, PDT has been applied at the early period after the first clinical induction in 1980’s. Although the useful efficacy was clarified, PDT has not been fully applied because of the phototoxicity of the porfimer sodium. The next generated talaporfin-sodium was used for PDT, in which phototoxicity was reduced and, however, the clinical efficacy for digestive tract malignancy has not yet been clarified. By proceeding the experimental and clinical trials, it is necessary to clarify the evidence of efficacy as a local powerful treatment with the conventional surgery, brachiotherapy and chemotherapy in the future step.
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