1
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Soy R, Babu B, Mack J, Nyokong T. The photodynamic activity properties of a series of structurally analogous tetraarylporphyrin, chlorin and N-confused porphyrin dyes and their Sn(IV) complexes. Photodiagnosis Photodyn Ther 2023; 44:103815. [PMID: 37777078 DOI: 10.1016/j.pdpdt.2023.103815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/20/2023] [Accepted: 09/25/2023] [Indexed: 10/02/2023]
Abstract
A series of tetraarylporphyrin, -chlorin and N-confused porphyrin dyes with 4‑methoxy‑meso-aryl rings (1-Por, 1-Chl and 1-NCP) and their Sn(IV) complexes (1-SnPor, 1-SnChl and 1-SnNCP) have been synthesized and characterized. The heavy atom effect of the Sn(IV) ion results in relatively high singlet oxygen quantum yield values of 0.67, 0.71 and 0.85 for 1-SnPor, 1-SnChl and 1-SnNCP, respectively. The photodynamic activities of 1-Por, 1-Chl, 1-NCP, 1-SnPor, 1-SnChl and 1-SnNCP were determined against MCF-7 breast cancer cells through illumination with Thorlabs 625 or 660 nm (240 or 280 mW.cm-2) light emitting diodes (LEDs) for 20 min. The IC50 values for 1-SnChl and 1-SnNCP lie between 1.4 - 6.1 and 1.6 - 4.8 µM upon photoirradiation with the 660 and 625 nm LEDs, respectively, while higher values of >10 µM were obtained for 1-SnPor and the free base dyes. In a similar manner, 1-SnChl and 1-SnNCP were found to also have significantly higher photodynamic antimicrobial activity against planktonic Gram-(+) Staphylococcus aureus and Gram-(-) Escherichia coli bacteria than the other dyes studied. Upon illumination with Thorlabs 625 and 660 nm LEDs for 75 min, Log10 reduction values of 7.62 and > 2.40-3.69 were obtained with 1 and 5 µM solutions, respectively.
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Affiliation(s)
- Rodah Soy
- Institute for Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa
| | - Balaji Babu
- Institute for Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa; Department of Chemistry, SRM University - AP, Amaravati 522502, India
| | - John Mack
- Institute for Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa.
| | - Tebello Nyokong
- Institute for Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa
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2
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Kessel D. Photodynamic therapy: Critical PDT theory IX-Translational efforts. Photochem Photobiol 2023. [PMID: 37811552 DOI: 10.1111/php.13867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/27/2023] [Accepted: 09/29/2023] [Indexed: 10/10/2023]
Affiliation(s)
- David Kessel
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, Michigan, USA
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3
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Domka W, Bartusik-Aebisher D, Przygoda M, Dynarowicz K, Tomik J, Aebisher D. PDT-Induced Activation Enhanced by Hormone Response to Treatment. Int J Mol Sci 2023; 24:13917. [PMID: 37762219 PMCID: PMC10531063 DOI: 10.3390/ijms241813917] [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: 07/27/2023] [Revised: 09/02/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Photodynamic therapy (PDT) is a medical treatment with the use of a photosensitizing agent (PS), which, when activated by light, results in selective tissue damage with a cytotoxic effect on tumor cells. PDT leads to the induction of an acute-phase response, which results in the involvement of adrenal glucocorticoid (GC) hormones. PDT, by activating the hormonal response, affects the treatment of cancer. GC release is observed due to adrenal activity, which is driven by changes in the hypothalamic pituitary-adrenal axis triggered by stress signals emanating from the PDT treated tumor. The hormones released in this process in the context of the PDT-induced acute-phase response perform many important functions during anticancer therapy. They lead, among other things, to the systemic mobilization of neutrophils and the production of acute-phase reagents, and also control the production of immunoregulatory proteins and proteins that modulate inflammation. GCs can radically affect the activity of various inflammatory and immune cells, including the apoptosis of cancer cells. A better understanding of the modulation of GC activity could improve the outcomes of cancer patients treated with PDT.
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Affiliation(s)
- Wojciech Domka
- Department of Otolaryngology, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland;
| | - Dorota Bartusik-Aebisher
- Department of Biochemistry and General Chemistry, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland;
| | - Maria Przygoda
- Students English Division Science Club, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland;
| | - Klaudia Dynarowicz
- Center for Innovative Research in Medical and Natural Sciences, Medical College of the University of Rzeszów, 35-310 Rzeszów, Poland;
| | - Jerzy Tomik
- Department of Otolaryngology, Collegium Medicum, Jagiellonian University, 30-688 Krakow, Poland;
| | - David Aebisher
- Department of Photomedicine and Physical Chemistry, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland
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4
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Soy R, Babu B, Mack J, Nyokong T. The Photodynamic Anticancer and Antibacterial Activity Properties of a Series of meso-Tetraarylchlorin Dyes and Their Sn(IV) Complexes. Molecules 2023; 28:molecules28104030. [PMID: 37241769 DOI: 10.3390/molecules28104030] [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: 03/28/2023] [Revised: 04/27/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
A series of tetraarylchlorins with 3-methoxy-, 4-hydroxy- and 3-methoxy-4-hydroxyphenyl meso-aryl rings (1-3-Chl) and their Sn(IV) complexes (1-3-SnChl) were synthesized and characterized so that their potential utility as photosensitizer dyes for use in photodynamic therapy (PDT) and photodynamic antimicrobial chemotherapy (PACT) can be assessed. The photophysicochemical properties of the dyes were assessed prior to in vitro PDT activity studies against MCF-7 breast cancer cells through irradiation with Thorlabs 625 or 660 nm LED for 20 min (240 or 280 mW·cm-2). PACT activity studies were performed against both planktonic bacteria and biofilms of Gram-(+) S. aureus and Gram-(-) E. coli upon irradiation with Thorlabs 625 and 660 nm LEDs for 75 min. The heavy atom effect of the Sn(IV) ion results in relatively high singlet oxygen quantum yield values of 0.69-0.71 for 1-3-SnChl. Relatively low IC50 values between 1.1-4.1 and 3.8-9.4 µM were obtained for the 1-3-SnChl series with the Thorlabs 660 and 625 nm LEDs, respectively, during the PDT activity studies. 1-3-SnChl were also found to exhibit significant PACT activity against planktonic S. aureus and E. coli with Log10 reduction values of 7.65 and >3.0, respectively. The results demonstrate that the Sn(IV) complexes of tetraarylchlorins merit further in depth study as photosensitizers in biomedical applications.
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Affiliation(s)
- Rodah Soy
- Institute for Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa
| | - Balaji Babu
- Institute for Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa
- Department of Chemistry, SRM University-AP, Amaravati 522502, India
| | - John Mack
- Institute for Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa
| | - Tebello Nyokong
- Institute for Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa
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5
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Vicente MDGH, Smith KM. Amino Acid Derivatives of Chlorin-e 6-A Review. Molecules 2023; 28:molecules28083479. [PMID: 37110713 PMCID: PMC10146174 DOI: 10.3390/molecules28083479] [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: 03/21/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Details of the structural elucidation of the clinically useful photodynamic therapy sensitizer NPe6 (15) are presented. NPe6, also designated as Laserphyrin, Talaporfin, and LS-11, is a second-generation photosensitizer derived from chlorophyll-a, currently used in Japan for the treatment of human lung, esophageal, and brain cancers. After the initial misidentification of the structure of this chlorin-e6 aspartic acid conjugate as (13), NMR and other synthetic procedures described herein arrived at the correct structure (15), confirmed using single crystal X-ray crystallography. Interesting new features of chlorin-e6 chemistry (including the intramolecular formation of an anhydride (24)) are reported, allowing chemists to regioselectively conjugate amino acids to each available carboxylic acid on positions 131 (formic), 152 (acetic), and 173 (propionic) of chlorin e6 (14). Cellular investigations of several amino acid conjugates of chlorin-e6 revealed that the 131-aspartylchlorin-e6 derivative is more phototoxic than its 152- and 173-regioisomers, in part due to its nearly linear molecular conformation.
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Affiliation(s)
| | - Kevin M Smith
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
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6
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Uliana MP, da Cruz Rodrigues A, Ono BA, Pratavieira S, de Oliveira KT, Kurachi C. Photodynamic Inactivation of Microorganisms Using Semisynthetic Chlorophyll a Derivatives as Photosensitizers. Molecules 2022; 27:5769. [PMID: 36144496 PMCID: PMC9653790 DOI: 10.3390/molecules27185769] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/29/2022] [Accepted: 09/01/2022] [Indexed: 08/27/2023] Open
Abstract
In this study, we describe the semisynthesis of cost-effective photosensitizers (PSs) derived from chlorophyll a containing different substituents and using previously described methods from the literature. We compared their structures when used in photodynamic inactivation (PDI) against Staphylococcus aureus, Escherichia coli, and Candida albicans under different conditions. The PSs containing carboxylic acids and butyl groups were highly effective against S. aureus and C. albicans following our PDI protocol. Overall, our results indicate that these nature-inspired PSs are a promising alternative to selectively inactivate microorganisms using PDI.
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Affiliation(s)
- Marciana Pierina Uliana
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, São Paulo CEP 13560-970, Brazil
- Departamento de Química, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235-SP-310, São Carlos, São Paulo CEP 13565-905, Brazil
- Universidade Federal da Integração Latino-Americana, Foz do Iguaçu CEP 85866-000, Brazil
| | | | - Bruno Andrade Ono
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, São Paulo CEP 13560-970, Brazil
| | - Sebastião Pratavieira
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, São Paulo CEP 13560-970, Brazil
| | - Kleber Thiago de Oliveira
- Departamento de Química, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235-SP-310, São Carlos, São Paulo CEP 13565-905, Brazil
| | - Cristina Kurachi
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, São Paulo CEP 13560-970, Brazil
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7
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Mal'shakova MV, Belykh DV. Intramolecular cyclization of 15-carboxy-13-amide derivatives of chlorin e 6 under the action of 2-chloro-1-methylpyridinium iodide. J PORPHYR PHTHALOCYA 2022. [DOI: 10.1142/s108842462250033x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Dingiswayo S, Burgess K, Babu B, Mack J, Nyokong T. Photodynamic Antitumor and Antimicrobial Activities of Free-Base Tetra(4-methylthiolphenyl)chlorin and Its Tin(IV) Complex. Chempluschem 2022; 87:e202200115. [PMID: 35604018 DOI: 10.1002/cplu.202200115] [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: 03/31/2022] [Revised: 04/29/2022] [Indexed: 11/09/2022]
Abstract
Meso-tetra(4-methylthiolphenyl)chlorin (3) and its Sn(IV) complex (3-Sn) have been synthesized and characterized. The heavy atom effects of the Sn(IV) ion and sulfur atoms result in relatively high singlet oxygen quantum yield values of 0.40 and 0.48. The photodynamic activities against MCF-7 breast cancer cells were determined through irradiation with a Thorlabs 660 nm LED for 30 min (280 mW.cm-2 ). IC50 values of 7.8 and 3.9 μM were obtained, respectively. 3-Sn was found to have significant photodynamic antimicrobial activity against both gram-(+) S. aureus and gram-(-) E. coli bacteria upon irradiation with a Thorlabs 660 nm LED for 75 min.
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Affiliation(s)
- Somila Dingiswayo
- Institute for Nanotechnology Innovation, Department of Chemistry, Rhodes University, Makhanda, 6140, South Africa
| | - Kristen Burgess
- Institute for Nanotechnology Innovation, Department of Chemistry, Rhodes University, Makhanda, 6140, South Africa
| | - Balaji Babu
- Institute for Nanotechnology Innovation, Department of Chemistry, Rhodes University, Makhanda, 6140, South Africa
| | - John Mack
- Institute for Nanotechnology Innovation, Department of Chemistry, Rhodes University, Makhanda, 6140, South Africa
| | - Tebello Nyokong
- Institute for Nanotechnology Innovation, Department of Chemistry, Rhodes University, Makhanda, 6140, South Africa
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9
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Zhang G, Wang M, Collins BR, Vicente MGH, Smith KM. Synthesis and cellular properties of a 131substituted chlorin e6-nevirapine conjugate. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s1088424621500632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The synthesis of a chlorin e6-nevirapine conjugate is reported, in which the nevirapine moiety is attached to the 131-position of chlorin e6 via a diethylene glycol linker. This conjugate was found to be nontoxic in the dark (IC[Formula: see text] > 200 [Formula: see text]M), but highly phototoxic (IC[Formula: see text] = 0.21 [Formula: see text]M at 1.5 J/cm[Formula: see text] toward human HEp2 cells. The chlorin e6-nevirapine conjugate accumulated within cells in multiple organelles, including the Golgi, lysosomes and mitochondria. On the other hand, nevirapine was found to be nontoxic to HEp2 cells.
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Affiliation(s)
- Guanyu Zhang
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Maodie Wang
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Brittany R. Collins
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - M. Graça H. Vicente
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Kevin M. Smith
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
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10
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Constituents of Aquilaria sinensis Leaves Upregulate the Expression of Matrix Metalloproteases 2 and 9. Molecules 2021; 26:molecules26092537. [PMID: 33926142 PMCID: PMC8123650 DOI: 10.3390/molecules26092537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 04/16/2021] [Accepted: 04/24/2021] [Indexed: 11/16/2022] Open
Abstract
In this novel study, we isolated 28 compounds from the leaves of Aquilaria sinensis (Lour.) Gilg based on a bioassay-guided procedure and also discovered the possible matrix metalloprotease 2 (MMP-2) and 9 (MMP-9) modulatory effect of pheophorbide A (PA). To evaluate the regulatory activity on MMP-2 and MMP-9, the HT-1080 human fibrosarcoma cells were treated with various concentrations of extracted materials and isolated compounds. PA was extracted by methanol from the leaves of A. sinensis and separated from the fraction of the partitioned ethyl acetate layer. PA is believed to be an active component for MMP expression since it exhibited significant stimulation on MMP-2 and proMMP-9 activity. When treating with 50 μM of PA, the expression of MMP-2 and MMP-9 were increased 1.9-fold and 2.3-fold, respectively. PA also exhibited no cytotoxicity against HT-1080 cells when the cell viability was monitored. Furthermore, no significant MMP activity was observed when five PA analogues were evaluated. This study is the first to demonstrate that C-17 of PA is the deciding factor in determining the bioactivity of the compound. The MMP-2 and proMMP-9 modulatory activity of PA indicate its potential applications for reducing scar formation and comparative medical purposes.
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11
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Soyama T, Sakuragi A, Oishi D, Kimura Y, Aoki H, Nomoto A, Yano S, Nishie H, Kataoka H, Aoyama M. Photodynamic therapy exploiting the anti-tumor activity of mannose-conjugated chlorin e6 reduced M2-like tumor-associated macrophages. Transl Oncol 2021; 14:101005. [PMID: 33401079 PMCID: PMC7785959 DOI: 10.1016/j.tranon.2020.101005] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 12/26/2020] [Indexed: 02/06/2023] Open
Abstract
M2-like tumor-associated macrophages (M2-TAMs) in cancer tissues are intimately involved in cancer immunosuppression in addition to growth, invasion, angiogenesis, and metastasis. Hence, considerable attention has been focused on cancer immunotherapies targeting M2-TAMs. However, systemic therapies inhibit TAMs as well as other macrophages important for normal immune responses throughout the body. To stimulate tumor immunity with fewer side effects, we targeted M2-TAMs using photodynamic therapy (PDT), which damages cells via a nontoxic photosensitizer with harmless laser irradiation. We synthesized a light-sensitive compound, mannose-conjugated chlorin e6 (M-chlorin e6), which targets mannose receptors highly expressed on M2-TAMs. M-chlorin e6 accumulated more in tumor tissue than normal skin tissue of syngeneic model mice and was more rapidly excreted than the second-generation photosensitizer talaporfin sodium. Furthermore, M-chlorin e6 PDT significantly reduced the volume and weight of tumor tissue. Flow cytometric analysis revealed that M-chlorin e6 PDT decreased the proportion of M2-TAMs and increased that of anti-tumor macrophages, M1-like TAMs. M-chlorin e6 PDT also directly damaged and killed cancer cells in vitro. Our data indicate that M-chlorin e6 is a promising new therapeutic agent for cancer PDT.
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Affiliation(s)
- Tatsuki Soyama
- Department of Pathobiology, Nagoya City University Graduate School of Pharmaceutical Sciences, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan
| | - Akira Sakuragi
- Department of Pathobiology, Nagoya City University Graduate School of Pharmaceutical Sciences, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan
| | - Daisuke Oishi
- Department of Pathobiology, Nagoya City University Graduate School of Pharmaceutical Sciences, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan
| | - Yuka Kimura
- Department of Pathobiology, Nagoya City University Graduate School of Pharmaceutical Sciences, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan
| | - Hiromasa Aoki
- Department of Pathobiology, Nagoya City University Graduate School of Pharmaceutical Sciences, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan
| | - Akihiro Nomoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Shigenobu Yano
- KYOUSEI Science Center for Life and Nature, Nara Women's University, Kitauoya-Higashimachi, Nara 630-8506, Japan
| | - Hirotada Nishie
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Nagoya 467-8601, Japan
| | - Hiromi Kataoka
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Nagoya 467-8601, Japan
| | - Mineyoshi Aoyama
- Department of Pathobiology, Nagoya City University Graduate School of Pharmaceutical Sciences, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan.
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12
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Novel Photosensitizer β-Mannose-Conjugated Chlorin e6 as a Potent Anticancer Agent for Human Glioblastoma U251 Cells. Pharmaceuticals (Basel) 2020; 13:ph13100316. [PMID: 33081106 PMCID: PMC7602738 DOI: 10.3390/ph13100316] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 10/13/2020] [Accepted: 10/13/2020] [Indexed: 12/12/2022] Open
Abstract
A photosensitizer is a molecular drug for photodynamic diagnosis and photodynamic therapy (PDT) against cancer. Many studies have developed photosensitizers, but improvements in their cost, efficacy, and side effects are needed for better PDT of patients. In the present study, we developed a novel photosensitizer β-mannose-conjugated chlorin e6 (β-M-Ce6) and investigated its PDT effects in human glioblastoma U251 cells. U251 cells were incubated with β-M-Ce6, followed by laser irradiation. Cell viability was determined using the Cell Counting Kit-8 assay. The PDT effects of β-M-Ce6 were compared with those of talaporfin sodium (TS) and our previously reported photosensitizer β-glucose-conjugated chlorin e6 (β-G-Ce6). Cellular uptake of each photosensitizer and subcellular distribution were analyzed by fluorescence microscopy. β-M-Ce6 showed 1000× more potent PDT effects than those of TS, and these were similar to those of β-G-Ce6. β-M-Ce6 accumulation in U251 cells was much faster than TS accumulation and distributed to several organelles such as the Golgi apparatus, mitochondria, and lysosomes. This rapid cellular uptake was inhibited by low temperature, which suggested that β-M-Ce6 uptake uses biological machinery. β-M-Ce6 showed potent PDT anti-cancer effects compared with clinically approved TS, which is a possible candidate as a next generation photosensitizer in cancer therapy.
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13
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Synthesis of Fluorinated Chlorophylls‐
a
and Their Bio/Physico‐Chemical Properties. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Guo X, Wang S, Zhang F, Li G, Li Y, Zhao W. Derivatization of chlorin e6 with maleimide enhances its photodynamic efficacy in HepG2 cells. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424620500248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Three derivatives of chlorin e6 (1–3) were synthesized by introduction of maleimide, cysteine and glutathione at C-13 carboxyl of the chlorin scaffold. The evaluation of their PDT effects showed that compound 1, the derivative with a maleimide group, exhibited more potent photocytotoxicity against HepG2 cells (IC[Formula: see text] 3.2 [Formula: see text]M) than 2 (IC[Formula: see text] 6.7 [Formula: see text]M) and 3 (IC[Formula: see text] 10.2 [Formula: see text]M), although the cellular uptake of 1 was slightly lower than that of 2 and 3. The high PDT effect of 1 was found to be in agreement with the high level of intracellular singlet oxygen. Further investigation of the mechanism revealed that 1 can significantly lower the GSH level in HepG2 cells due to the addiction reaction of maleimide and GSH, thus resulting in the reduction of ROS scavenging and the enhancement of cellular oxidative stress. This approach to improve PDT effects of photosensitizers by means of interfering with the cellular redox system and enhancing cellular oxidative stress offers a new strategy for development of photosensitizers in cancer therapy.
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Affiliation(s)
- Xiuhan Guo
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
| | - Shisheng Wang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
| | - Fan Zhang
- The Second Hospital of Dalian Medical Universty, Dalian, 116024, P. R. China
| | - Guangzhe Li
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yueqing Li
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Weijie Zhao
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
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15
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Grin MA, Suvorov NV, Mironov AF. Natural chlorins as a promising platform for creating targeted theranostics in oncology. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.07.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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16
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Belykh DV. C–O, C–S, C–N, and C–C Bond Formation at the Periphery of the Macrocycle during Chemical Modification of Phytochlorins: Key Methods and Synthetic Applications. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363219120430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Hamblin MR. Photodynamic Therapy for Cancer: What's Past is Prologue. Photochem Photobiol 2020; 96:506-516. [PMID: 31820824 DOI: 10.1111/php.13190] [Citation(s) in RCA: 136] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 11/03/2019] [Indexed: 12/25/2022]
Abstract
Thomas J Dougherty from Roswell Park Cancer Center played a major role in the progress of photodynamic therapy (PDT) from a laboratory science into a real-world clinical therapy to treat patients with cancer. Nevertheless over the succeeding 45 years, it is fair to say that the overall progress of clinical PDT for cancer has been somewhat disappointing. The goal of this perspective article is to summarize some of the clinical trials run by various companies using photosensitizers with different structures that have been conducted for different types of cancer. While some have been successful, others have failed, and several are now ongoing. I will attempt to touch on some factors, which have influenced this checkered history and look forward to the future of clinical PDT for cancer.
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Affiliation(s)
- Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA.,Department of Dermatology, Harvard Medical School, Boston, MA.,Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa
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18
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Mironov AF. Chemical Transformations of Chlorophyll a and Possible Areas for Application of Its Derivatives. RUSS J GEN CHEM+ 2019. [DOI: 10.1134/s1070363219090354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Zhang Z, Yu HJ, Wu S, Huang H, Si LP, Liu HY, Shi L, Zhang HT. Synthesis, characterization, and photodynamic therapy activity of 5,10,15,20-Tetrakis(carboxyl)porphyrin. Bioorg Med Chem 2019; 27:2598-2608. [PMID: 30992204 DOI: 10.1016/j.bmc.2019.03.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/25/2019] [Accepted: 03/26/2019] [Indexed: 01/22/2023]
Abstract
Water-soluble porphyrins are considered promising drug candidates for photodynamic therapy (PDT). This study investigated the PDT activity of a new water-soluble, anionic porphyrin (1-Zn), which possesses four negative charges. The photodynamic anticancer activity of 1-Zn was investigated by the MTT assay, with mTHPC as a positive control. The cellular distribution was determined by fluorescence microscopy. Holographic and phase contrast images were recorded after 1-Zn treatment with a HoloMonitor™ M3 instrument. The inhibition of A549 cell growth achieved by inducing apoptosis was investigated by flow cytometry and fluorescence microscopy. DNA damage was investigated by the comet assay. The expression of apoptosis-related proteins was also measured by western blot assays. 1-Zn had better phototoxicity against A549 cells than HeLa and HepG2 cancer cells. Interestingly, 1-Zn was clearly located almost entirely in the cell cytoplasmic region/organelles. The late apoptotic population was less than 1.0% at baseline in the untreated and only light-treated cells and increased to 40.5% after 1-Zn treatment and irradiation (P < 0.05). 1-Zn triggered significant ROS generation after irradiation, causing ΔΨm disruption (P < 0.01) and DNA damage. 1-Zn induced A549 cell apoptosis via the mitochondrial apoptosis pathway. In addition, 1-Zn bound in the groove of DNA via an outside binding mode by pi-pi stacking and hydrogen bonding. 1-Zn exhibits good photonuclease activity and might serve as a potential photosensitizer (PS) for lung cancer cells.
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Affiliation(s)
- Zhao Zhang
- Department of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, PR China
| | - Hua-Jun Yu
- Department of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, PR China
| | - Shang Wu
- Department of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, PR China
| | - Hui Huang
- Department of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, PR China
| | - Li-Ping Si
- School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, PR China
| | - Hai-Yang Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou 510640, PR China.
| | - Lei Shi
- Department of Chemistry, Guangdong University of Education, Guangzhou 510303, PR China.
| | - Hai-Tao Zhang
- Department of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, PR China.
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20
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Nagano Y, Ogasawara S, Tamiaki H. Regioisomeric synthesis of chlorin-e6 dimethyl esters and their optical properties. J PORPHYR PHTHALOCYA 2018. [DOI: 10.1142/s1088424618501043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Chlorin-[Formula: see text] dimethyl esters possessing a single carboxy group at the 13-, 151-, or 172-position were prepared by chemically modifying chlorophyll-[Formula: see text]. These three synthetic regioisomers were fully characterized by their mass, NMR, and visible absorption spectra. Their molecular structures were unambiguously identified by the specific 1H–[Formula: see text]C correlation at the 13-, 15-, and/or 17-substituents in their respective HMBC spectra. Methyl esterification of 13/151-COOH and hydrolysis of 13/151-COOMe affected small shifts of the Qy absorption and fluorescence emission maxima in a diluted CH2Cl2 solution, while no substitution effect of 172-COOH/Me was observed.
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Affiliation(s)
- Yasunobu Nagano
- Graduate School of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
| | - Shin Ogasawara
- Graduate School of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
| | - Hitoshi Tamiaki
- Graduate School of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
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21
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Zhu W, Gao YH, Liao PY, Chen DY, Sun NN, Nguyen Thi PA, Yan YJ, Wu XF, Chen ZL. Comparison between porphin, chlorin and bacteriochlorin derivatives for photodynamic therapy: Synthesis, photophysical properties, and biological activity. Eur J Med Chem 2018; 160:146-156. [DOI: 10.1016/j.ejmech.2018.10.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 09/28/2018] [Accepted: 10/01/2018] [Indexed: 10/28/2022]
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22
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Suvorov NV, Machulkin AE, Ivanova AV, Popkov AM, Bondareva EA, Plotnikova EA, Yakubovskaya RI, Majouga AG, Mironov AF, Grin MA. Synthesis of PSMA-targeted 131- and 152-substituted chlorin e6 derivatives and their biological properties. J PORPHYR PHTHALOCYA 2018. [DOI: 10.1142/s1088424618501006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Prostate cancer is an extremely common cancer among older men. Conventional chemotherapy has proven to be not effective enough in battling it due to its high systemic toxicity and low selectivity. An alternative method of cancer treatment known as photodynamic therapy (PDT) has been shown to be effective. It is not without its faults either: one of the issues it’s been known to have is the insufficient selectivity of photosensitizer accumulation in tumor tissues. Recent studies, however, seem to indicate that introducing a PSMA-targeted moiety into photosensitizer might prove to be a solution to this problem. The present paper is concerned with synthesis of PSMA-targeted 131- and 152-substituted chlorin e6 conjugates and their biological characteristics. Our data suggests that the developed conjugates show potential as targeted agents for photodynamic therapy.
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Affiliation(s)
- Nikita V. Suvorov
- MIREA — Russian Technological University, Institute of Fine Chemical Technology, 86, Vernadskogo Avenue, Moscow, 119571, Russian Federation
| | - Alexey E. Machulkin
- Lomonosov Moscow State University, 1, Leninskie Gori, Building 3, Moscow, 119991, Russian Federation
| | - Anna V. Ivanova
- MIREA — Russian Technological University, Institute of Fine Chemical Technology, 86, Vernadskogo Avenue, Moscow, 119571, Russian Federation
| | - Alexander M. Popkov
- MIREA — Russian Technological University, Institute of Fine Chemical Technology, 86, Vernadskogo Avenue, Moscow, 119571, Russian Federation
| | - Elizaveta A. Bondareva
- MIREA — Russian Technological University, Institute of Fine Chemical Technology, 86, Vernadskogo Avenue, Moscow, 119571, Russian Federation
| | - Ekaterina A. Plotnikova
- P. A. Herzen Moscow Oncology Research Institute, 3, 2th Botkinsky Driveway, Moscow, 125284, Russian Federation
| | - Raisa I. Yakubovskaya
- P. A. Herzen Moscow Oncology Research Institute, 3, 2th Botkinsky Driveway, Moscow, 125284, Russian Federation
| | - Alexander G. Majouga
- Dmitry Mendeleev University of Chemical Technology of Russia, 9, Miusskaya Square, Moscow, 125047, Russian Federation
- Lomonosov Moscow State University, 1, Leninskie Gori, Building 3, Moscow, 119991, Russian Federation
| | - Andrey F. Mironov
- MIREA — Russian Technological University, Institute of Fine Chemical Technology, 86, Vernadskogo Avenue, Moscow, 119571, Russian Federation
| | - Mikhail A. Grin
- MIREA — Russian Technological University, Institute of Fine Chemical Technology, 86, Vernadskogo Avenue, Moscow, 119571, Russian Federation
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23
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Srdanović S, Gao YH, Chen DY, Yan YJ, Margetić D, Chen ZL. The photodynamic activity of 131-[2′-(2-pyridyl)ethylamine] chlorin e6 photosensitizer in human esophageal cancer. Bioorg Med Chem Lett 2018; 28:1785-1791. [DOI: 10.1016/j.bmcl.2018.04.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 04/05/2018] [Accepted: 04/11/2018] [Indexed: 12/29/2022]
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24
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Song H, Wang G, Wang J, Wang Y, Wei H, He J, Luo S. 131I-labeled 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin and 5,10,15,20-tetrakis(4-aminophenyl)porphyrin for combined photodynamic and radionuclide therapy. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5735-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Abdel Gaber SA, Müller P, Zimmermann W, Hüttenberger D, Wittig R, Abdel Kader MH, Stepp H. ABCG2-mediated suppression of chlorin e6 accumulation and photodynamic therapy efficiency in glioblastoma cell lines can be reversed by KO143. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 178:182-191. [DOI: 10.1016/j.jphotobiol.2017.10.035] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 10/26/2017] [Accepted: 10/28/2017] [Indexed: 12/21/2022]
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26
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Guo X, Wang L, Wang S, Li Y, Cao L, Cai R, Zhao W. Synergistic antiproliferative effect of chemo-phototherapy: Synthesis and photodynamic activity evaluation of novel Chlorin e6-artesunate conjugates as antiproliferative agents. Bioorg Med Chem Lett 2017; 27:4548-4551. [DOI: 10.1016/j.bmcl.2017.08.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 08/22/2017] [Accepted: 08/25/2017] [Indexed: 10/19/2022]
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27
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Chen H, Humble SW, Waruna Jinadasa RG, Zhou Z, Nguyen AL, Vicente MGH, Smith KM. Syntheses and PDT activity of new mono- and di-conjugated derivatives of chlorin e 6. J PORPHYR PHTHALOCYA 2017; 21:354-363. [PMID: 29056848 PMCID: PMC5646832 DOI: 10.1142/s1088424617500262] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Syntheses of three new chlorin e6 conjugates for PDT of tumors are reported. One of the new compounds 17 is conjugated with lysine at the 131-position, but the others are mono-conjugated 14 or diconjugated 15 with the non-amino acid species ethanolamine. Cellular experiments with the three new compounds and previously synthesized non-amino acid 152-conjugates (7-10), 131-monoconjugates 14, 16, and a 131,152-diconjugate 12 are reported. In vitro cytotoxicity experiments show that the 131-conjugates are more toxic than the 152-conjugates, and the most toxic derivative (dark- and photo-toxicity) is the 131-ethylenediamine conjugate 11. The most useful PDT photosentitizers appear to be the ethanolamine derivatives, conjugated at the 152- and the 131,152-positions; these show high phototoxicity but relatively low dark toxicity compared with 11, and also the highest dark/photo cytotoxicity ratios.
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Affiliation(s)
- Hui Chen
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | - Stewart W. Humble
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | - R. G. Waruna Jinadasa
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | - Zehua Zhou
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | - Alex L. Nguyen
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | | | - Kevin M. Smith
- Correspondence to: Kevin M. Smith, , tel: +1 225-578-7442, fax: +1 225-578-3458
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28
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Cheng J, Li W, Tan G, Wang Z, Li S, Jin Y. Synthesis and in vitro photodynamic therapy of chlorin derivative 131-ortho-trifluoromethyl-phenylhydrazone modified pyropheophorbide-a. Biomed Pharmacother 2017; 87:263-273. [DOI: 10.1016/j.biopha.2016.12.081] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/05/2016] [Accepted: 12/19/2016] [Indexed: 12/22/2022] Open
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29
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Cao L, Guo X, Wang L, Wang S, Li Y, Zhao W. Synthesis and in vitro phototoxicity of novel π-extension derivatives of chlorin e6. NEW J CHEM 2017. [DOI: 10.1039/c7nj03279j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
32-Aryl substitution generated the maximum wavelength redshift and increased the in vitro phototoxicity against HepG2 cells simultaneously.
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Affiliation(s)
- Lei Cao
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Xiuhan Guo
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Liu Wang
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Shisheng Wang
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Yueqing Li
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Weijie Zhao
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
- State Key Laboratory of Fine Chemicals
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30
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Llamas EM, Tome JPC, Rodrigues JMM, Torres T, Madder A. Porphyrin-based photosensitizers and their DNA conjugates for singlet oxygen induced nucleic acid interstrand crosslinking. Org Biomol Chem 2017. [DOI: 10.1039/c7ob01269a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Porphyrin-based photosensitisers and their DNA conjugates have been evaluated for interstrand crosslink generation using furan containing oligonucleotides and red light.
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Affiliation(s)
- Eva M. Llamas
- Department of Organic and Macromolecular Chemistry
- Ghent University
- 9000 Ghent
- Belgium
- Departamento de Química Orgánica
| | - João P. C. Tome
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
| | - João M. M. Rodrigues
- Centro de Química Estrutural
- Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
| | - Tomás Torres
- Departamento de Química Orgánica
- Universidad Autónoma de Madrid
- 28049 Madrid
- Spain
- Imdea-Nanoscience
| | - Annemieke Madder
- Department of Organic and Macromolecular Chemistry
- Ghent University
- 9000 Ghent
- Belgium
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31
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Ghogare AA, Greer A. Synthesis of a poly(ethylene glycol) galloyl sensitizer tip for an 'all-in-one' photodynamic device. JOURNAL OF BIOPHOTONICS 2016; 9:1326-1336. [PMID: 27041367 DOI: 10.1002/jbio.201600013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 02/23/2016] [Accepted: 03/03/2016] [Indexed: 06/05/2023]
Abstract
This paper describes the synthesis of a specialized silica tip for an optical fiber device capable of delivering all components necessary for photodynamic therapy. Oxygen, light and a cleavable tripolyethylene glycol (PEG)-galloyl pheophorbide sensitizer are simultaneously delivered by the silica tip, where the tip was synthesized in six steps. A comparison of synthetic steps to reach PEGylated sensitizers bound to fluorinated silica and a previously reported Teflon/polyvinyl alcohol (PVA) nanocomposite ( Ghosh, G. et al. J. Phys. Chem. B 2015, 119, 4155- 4164) was made. The hydrolytic stability of the attached PEGs and the extent to which the PEG groups enhance solubility will also be discussed. The new triPEG-galloyl sensitizer has the potential for use in intraoperative pointsource photodynamic therapy which aims for precision treatment of residual disease. Schematic of the synthesis of a photoactive silica surface. It is composed of fluorinated silica connected to a photo-releasable sensitizer with short-chain PEGs.
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Affiliation(s)
- Ashwini A Ghogare
- Department of Chemistry, Brooklyn College, 2900 Bedford Avenue, Brooklyn, New York, 11210, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York, 10016, United States
| | - Alexander Greer
- Department of Chemistry, Brooklyn College, 2900 Bedford Avenue, Brooklyn, New York, 11210, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York, 10016, United States
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32
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Bastien E, Schneider R, Hackbarth S, Dumas D, Jasniewski J, Röder B, Bezdetnaya L, Lassalle HP. PAMAM G4.5-chlorin e6 dendrimeric nanoparticles for enhanced photodynamic effects. Photochem Photobiol Sci 2016; 14:2203-12. [PMID: 26496965 DOI: 10.1039/c5pp00274e] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
There is currently great interest in the development of efficient and specific carrier delivery platforms for systemic photodynamic therapy. Therefore, we aimed to develop covalent conjugates between the photosensitizer chlorin e6 (Ce6) and PAMAM G4.5 dendrimers. Singlet oxygen generation (SOG) efficiency and fluorescence emission were moderately affected by the covalent binding of the Ce6 to the dendrimer. Compared to free Ce6, PAMAM anchored Ce6 displays a much higher photodynamic effect, which is ascribable to better internalization in a tumor cell model. Intracellular fate and internalization pathway of our different compounds were investigated using specific inhibition conditions and confocal fluorescence microscopy. Free Ce6 was shown to enter the cells by a simple diffusion mechanism, while G4.5-Ce6-PEG internalization was dependent on the caveolae pathway, whereas G4.5-Ce6 was subjected to the clathrin-mediated endocytosis pathway. Subcellular localization of PAMAM anchored Ce6, PEGylated or not, was very similar suggesting that the nanoparticles behave similarly in the cells. As a conclusion, we have demonstrated that PEGylated G4.5 PAMAM-Ce6 dendrimers may offer effective biocompatible nanoparticles for improved photodynamic treatment in a preclinical tumor model.
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Affiliation(s)
- Estelle Bastien
- Université de Lorraine, Centre de Recherche en Automatique de Nancy, Campus Sciences, Vandœuvre-lès-Nancy, France. and Centre National de la Recherche Scientifique, Centre de Recherche en Automatique de Nancy, France
| | - Raphaël Schneider
- Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, CNRS, 1 rue Grandville, BP 20451, 54001 Nancy Cedex, France
| | - Steffen Hackbarth
- Institut für Physik, Humboldt, Universität zu Berlin, Newtonstrasse, Berlin, Germany
| | - Dominique Dumas
- Université de Lorraine, Plateforme IBISA d'Imagerie et de Biophysique Cellulaire de Nancy, IMOPA7365, FR3209 BMCT, Centre National de la Recherche Scientifique, Vandœuvre-lès-Nancy, France
| | - Jordane Jasniewski
- Université de Lorraine, Laboratoire d'ingénierie des biomolécues (LIBio), 2 avenue de la Forêt de Haye, Vandœuvre-lès-Nancy, France
| | - Beate Röder
- Institut für Physik, Humboldt, Universität zu Berlin, Newtonstrasse, Berlin, Germany
| | - Lina Bezdetnaya
- Université de Lorraine, Centre de Recherche en Automatique de Nancy, Campus Sciences, Vandœuvre-lès-Nancy, France. and Centre National de la Recherche Scientifique, Centre de Recherche en Automatique de Nancy, France
| | - Henri-Pierre Lassalle
- Université de Lorraine, Centre de Recherche en Automatique de Nancy, Campus Sciences, Vandœuvre-lès-Nancy, France. and Centre National de la Recherche Scientifique, Centre de Recherche en Automatique de Nancy, France
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33
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Constituents from the leaves of Clausena lansium and their anti-inflammatory activity. J Nat Med 2016; 71:96-104. [PMID: 27539584 DOI: 10.1007/s11418-016-1033-x] [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] [Received: 07/04/2016] [Accepted: 08/07/2016] [Indexed: 10/21/2022]
Abstract
Five new acyclic amides, clausenalansamides C-G (1-5), clausenaline G (6) and (±)-5-(4-methylphenyl)-γ-valerolactone (7) reported from the natural source for the first time, were characterized from the leaves of Clausena lansium. Their structures were established by spectroscopic and spectrometric methods, and the absolute configurations of new compounds 1-5 were determined by electronic circular dichroism and single-crystal X-ray diffraction analyses. Eighteen compounds were evaluated for their anti-inflammatory activity and only imperatorin (11) and wampetin (12) displayed significant inhibition of fMLP/CB-induced superoxide anion generation with IC50 values of 1.7 ± 0.3 and 6.8 ± 1.1 μM, respectively.
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34
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Pye H, Butt MA, Reinert HW, Maruani A, Nunes JPM, Marklew JS, Qurashi M, Funnell L, May A, Stamati I, Hamoudi R, Baker JR, Smith MEB, Caddick S, Deonarain MP, Yahioglu G, Chudasama V, Lovat LB. A HER2 selective theranostic agent for surgical resection guidance and photodynamic therapy. Photochem Photobiol Sci 2016; 15:1227-1238. [PMID: 27501936 DOI: 10.1039/c6pp00139d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In many cancers early intervention involves surgical resection of small localised tumour masses. Inadequate resection leads to recurrence whereas overzealous treatment can lead to organ damage. This work describes production of a HER2 targeting antibody Fab fragment dual conjugated to achieve both real time near-infrared fluorescent imaging and photodynamic therapy. The use of fluorescence emission from a NIR-dye could be used to guide resection of tumour bulk, for example during endoscopic diagnosis for oesophago-gastric adenocarcinoma, this would then be followed by activation of the photodynamic therapeutic agent to destroy untreated localised areas of cancer infiltration and tumour infiltrated lymph nodes. This theranostic agent was prepared from the Fab fragment of trastuzumab initially by functional disulfide re-bridging and site-specific click reaction of a NIR-dye. This was followed by further reaction with a novel pre-activated form of the photosensitiser chlorin e6 with the exposed fragments' lysine residues. Specific binding of the theranostic agent was observed in vitro with a HER2 positive cell line and cellular near-infrared fluorescence was observed with flow cytometry. Specific photo-activity of the conjugates when exposed to laser light was observed with HER2 positive but not HER2 negative cell lines in vitro, this selectivity was not seen with the unconjugated drug. This theranostic agent demonstrates that two different photo-active functions can be coupled to the same antibody fragment with little interference to their independent activities.
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Affiliation(s)
- H Pye
- Department for Tissue & Energy, Division of Surgery & Interventional Science, University College London, Cruciform Building, Gower Street, London, WC1E 6AE, UK.
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35
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Jinadasa RGW, Zhou Z, Vicente MGH, Smith KM. Syntheses and cellular investigations of di-aspartate and aspartate-lysine chlorin e(6) conjugates. Org Biomol Chem 2016; 14:1049-64. [PMID: 26633562 PMCID: PMC4701634 DOI: 10.1039/c5ob02241j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Chlorin e6 is a tricarboxylic acid degradation product of chlorophyll a. Four chlorin e6 bis(amino acid) conjugates were regioselectively synthesized bearing two aspartate conjugates in the 13(1),17(3)- and 15(2),17(3)-positions, or at the 13(1),15(2)via an ethylene diamine linker. One additional conjugate bearing two different amino acids, lysine at 13(1)via an ethylene diamine linker and an aspartate at 15(2)via a β-alanine linker was also synthesized. The cytotoxicity and uptake of four di(amino acid) chlorin e6 conjugates were investigated in human HEp2 cells, and compared with chlorin e6. The most cytotoxic and most taken up conjugates were the zwitterionic 13(1),15(2)-disubstituted conjugates 28 and 33; these also localized in multiple organelles. In contrast, the anionic 13(1),17(3)- and 15(2),17(3)-di-aspartyl chlorin e6 conjugates 12 and 13 showed low dark cytoxicity and lower phototoxicity compared with chlorin e6.
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Affiliation(s)
- R G Waruna Jinadasa
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA.
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36
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Chen H, Waruna Jinadasa RG, Jiao L, Fronczek FR, Nguyen AL, Smith KM. Chlorin e 6 13 1:15 2-Anhydride: A Key Intermediate in Conjugation Reactions of Chlorin e 6. European J Org Chem 2015; 2015:3661-3665. [PMID: 26257578 DOI: 10.1002/ejoc.201500478] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Since the patent for the photodynamic therapy agent Talaporfin (mono-L-aspartylchlorin e6) was issued in 1987, confusion has existed regarding which of the three carboxylic acid groups in the chlorophyll degradation product, chlorin e6 (1), is modified in standard amino acid type conjugations (using DCC or EDC and an organic base) with amino acids and other biomolecules. Here it is shown that the site of conjugation is the central 152-carboxylic acid, such reactions proceeding in numerous examples via a 131,152-anhydride for which a high resolution X-ray structure is reported. Conjugation with eight oxygen and nitrogen nucleophiles, in every case, afforded the 152-conjugate, reinforcing the earlier conclusion that Talaporfin is the 152-aspartyl conjugate of chlorin e6 and suggesting that reports of 173-conjugation of chlorin e6 using stoichiometric peptide coupling procedures should be subjected to further scrutiny.
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Affiliation(s)
- Hui Chen
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - R G Waruna Jinadasa
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Lijuan Jiao
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Frank R Fronczek
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Alex L Nguyen
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Kevin M Smith
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
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37
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Li J, Zhang X, Liu Y, Yoon I, Kim DK, Yin JG, Wang JJ, Shim YK. Synthesis, optical properties and preliminary in vitro photodynamic effect of pyridyl and quinoxalyl substituted chlorins. Bioorg Med Chem 2015; 23:1684-90. [PMID: 25797162 DOI: 10.1016/j.bmc.2015.03.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 03/07/2015] [Accepted: 03/08/2015] [Indexed: 12/27/2022]
Abstract
A series of chlorophyll a-based chlorins conjugated with pyridyl or quinoxalyl group at different positions were synthesized, characterized and evaluated for their photodynamic effect in vitro. It was found that all the pyridyl and quinoxalyl chlorins showed promising photocytotoxicities but nontoxic without irradiation in HeLa cells, and the substituted types and positions had a significant influence on the photocytotoxicities of the chlorophyll a-based chlorins. All the chlorins with a pyridyl group at the C-D ring end exhibited relatively high photocytotoxicity as compared to those with 3(2)-pyridyl. Among them, compound 12 conjugated with a pyridyl group at its C12 position showed the best photodynamic effect in HeLa cells with an IC50 value of 0.033μM. These facts, associated with the relative high long wavelength absorptions of those chlorins may provide valuable ways to design and prepare promising photosensitizers for application in photodynamic therapy.
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Affiliation(s)
- Jiazhu Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China.
| | - Xin Zhang
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yang Liu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Il Yoon
- PDT Research Institute, School of Nano System Engineering, Inje University, Gimhae 621-749, Republic of Korea
| | - Dong-Kyoo Kim
- Department of Biomedicinal Chemistry and Institute of Basic Science, Inje University, Gimhae 621-749, Republic of Korea
| | - Jun-Gang Yin
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Jin-Jun Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Young Key Shim
- PDT Research Institute, School of Nano System Engineering, Inje University, Gimhae 621-749, Republic of Korea.
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38
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Ghosh G, Minnis M, Ghogare AA, Abramova I, Cengel KA, Busch TM, Greer A. Photoactive fluoropolymer surfaces that release sensitizer drug molecules. J Phys Chem B 2015; 119:4155-64. [PMID: 25686407 DOI: 10.1021/acs.jpcb.5b00808] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We describe a physical-organic study of two fluoropolymers bearing a photoreleasable PEGylated photosensitizer that generates (1)O2((1)Δg) [chlorin e6 methoxy tri(ethylene glycol) triester]. The surfaces are Teflon/poly(vinyl alcohol) (PVA) nanocomposite and fluorinated silica. The relative efficiency of these surfaces to photorelease the PEGylated sensitizer [shown previously to be phototoxic to ovarian cancer cells (Kimani, S. et al. J. Org. Chem 2012, 77, 10638)] was slightly higher for the nanocomposite. In the presence of red light and O2, (1)O2 is formed, which cleaves an ethene linkage to liberate the sensitizer in 68-92% yield. The fluoropolymers were designed to deal with multiple problems. Namely, their success relied not only on high O2 solubility and drug repellency but also on the C-F bonds, which physically quench little (1)O2, for singlet oxygen's productive use away from the surface. The results obtained here indicate that Teflon-like surfaces have potential uses in delivering sensitizer and singlet oxygen for applications in tissue repair and photodynamic therapy (PDT).
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Affiliation(s)
- Goutam Ghosh
- Department of Chemistry and Graduate Center, Brooklyn College, City University of New York , Brooklyn, New York 11210, United States
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39
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Dąbrowski JM, Arnaut LG. Photodynamic therapy (PDT) of cancer: from local to systemic treatment. Photochem Photobiol Sci 2015. [DOI: 10.1039/c5pp00132c] [Citation(s) in RCA: 295] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Photodynamic therapy (PDT) requires a medical device, a photosensitizing drug and adequate use of both to trigger biological mechanisms that can rapidly destroy the primary tumour and provide long-lasting protection against metastasis.
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Affiliation(s)
| | - Luis G. Arnaut
- Chemistry Department
- University of Coimbra
- 3004-535 Coimbra
- Portugal
- Luzitin SA
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40
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Uliana MP, Pires L, Pratavieira S, Brocksom TJ, de Oliveira KT, Bagnato VS, Kurachi C. Photobiological characteristics of chlorophyll a derivatives as microbial PDT agents. Photochem Photobiol Sci 2014; 13:1137-45. [DOI: 10.1039/c3pp50376c] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Chlorin-e6 (chl-e6) and a hydrogenated derivative (chl-e6H) were semi-synthesized, and their photophysical properties and photodynamic activity againstEscherichia coli,Staphylococcus aureusandCandida albicansevaluated.
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Affiliation(s)
- Marciana P. Uliana
- Instituto de Física de São Carlos – Universidade de São Paulo
- São Carlos, Brazil
- Departamento de Química
- Universidade Federal de São Carlos
- São Carlos, Brazil
| | - Layla Pires
- Instituto de Física de São Carlos – Universidade de São Paulo
- São Carlos, Brazil
| | | | | | | | | | - Cristina Kurachi
- Instituto de Física de São Carlos – Universidade de São Paulo
- São Carlos, Brazil
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41
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Ponomarev GV, Solovieva MN, Dugin NO, Zavialova MG, Mehtiev AR, Misharin AY, Novikov RA, Tkachev YV, Popenko VI, Timofeev VP. Lipophilic derivatives of natural chlorins: Synthesis, mixed micelles with phospholipids, and uptake by cultured cells. Bioorg Med Chem 2013; 21:5420-7. [DOI: 10.1016/j.bmc.2013.06.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Revised: 05/29/2013] [Accepted: 06/06/2013] [Indexed: 11/25/2022]
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42
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Kimani S, Ghosh G, Ghogare A, Rudshteyn B, Bartusik D, Hasan T, Greer A. Synthesis and characterization of mono-, di-, and tri-poly(ethylene glycol) chlorin e6 conjugates for the photokilling of human ovarian cancer cells. J Org Chem 2012; 77:10638-47. [PMID: 23126407 DOI: 10.1021/jo301889s] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PEGylated chlorin e(6) photosensitizers were synthesized with tri(ethylene glycol) attached at the ester bond(s) for a 1:1 conjugate at the 17(3)-position, a 2:1 conjugate at the 15(2)- and 17(3)-positions, and a 3:1 conjugate at the 13(1)-, 15(2)-, and 17(3)-positions. These chlorin sensitizers were studied for hydrolytic stability and solubility, as well as ovarian OVCAR-5 cancer cell uptake, localization, and phototoxicity. Increasing numbers of the PEG groups in the mono-, di-, and tri-PEG chlorin conjugates increased the water solubility and sensitivity to hydrolysis and uptake into the ovarian cancer cells. The PEG chlorin conjugates accumulated in the cytoplasm and mitrochondria, but not in lysosomes. Higher phototoxicity was roughly correlated with higher numbers of PEG groups, with the tri-PEG chlorin conjugate showing the best overall ovarian cancer cell photokilling of the series. Singlet oxygen lifetimes, solvent deuteration, and the effects of additives azide ion and d-mannitol were examined to help clarify the photokilling mechanisms. A Type-II (singlet oxygen) photosensitized mechanism is suggested for the di- and tri-PEG chlorin conjugates; however, a more complicated process based in part on a Type-I (radicals or radical ions) mechanism is suggested for the parent chlorin e(6) and the mono-PEG chlorin conjugate.
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Affiliation(s)
- Stanley Kimani
- Department of Chemistry and Graduate Center, City University of New York, Brooklyn College, Brooklyn, New York 11210, USA
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Synthesis of chlorin-based unsaturated fatty acid conjugates: Their in vitro phototoxicity on TC-1 cancer cell line. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2012; 110:50-7. [DOI: 10.1016/j.jphotobiol.2012.03.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 03/02/2012] [Accepted: 03/13/2012] [Indexed: 12/21/2022]
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Dąbrowski JM, Arnaut LG, Pereira MM, Urbańska K, Simões S, Stochel G, Cortes L. Combined effects of singlet oxygen and hydroxyl radical in photodynamic therapy with photostable bacteriochlorins: evidence from intracellular fluorescence and increased photodynamic efficacy in vitro. Free Radic Biol Med 2012; 52:1188-200. [PMID: 22285766 DOI: 10.1016/j.freeradbiomed.2011.12.027] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Revised: 12/22/2011] [Accepted: 12/28/2011] [Indexed: 01/08/2023]
Abstract
Sulfonamides of halogenated bacteriochlorins bearing Cl or F substituents in the ortho positions of the phenyl rings have adequate properties for photodynamic therapy, including strong absorption in the near-infrared (λ(max) ≈ 750 nm, ε ≈ 10(5) M(-1) cm(-1)), controlled photodecomposition, large cellular uptake, intracellular localization in the endoplasmic reticulum, low cytotoxicity, and high phototoxicity against A549 and S91 cells. The roles of type I and type II photochemical processes are assessed by singlet oxygen luminescence and intracellular hydroxyl radical detection. Phototoxicity of halogenated sulfonamide bacteriochlorins does not correlate with singlet oxygen quantum yields and must be mediated both by electron transfer (superoxide ion, hydroxyl radicals) and by energy transfer (singlet oxygen). The photodynamic efficacy is enhanced when cellular death is induced by both singlet oxygen and hydroxyl radicals.
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Jinadasa RGW, Hu X, Vicente MGH, Smith KM. Syntheses and cellular investigations of 17(3)-, 15(2)-, and 13(1)-amino acid derivatives of chlorin e(6). J Med Chem 2011; 54:7464-76. [PMID: 21936519 DOI: 10.1021/jm2005139] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A series of amino acid conjugates of chlorin e(6), containing lysine or aspartic acid residues in positions 17(3), 15(2), or 13(1) of the macrocycle were synthesized and investigated as photosensitizers for photodynamic therapy of tumors. All three regioisomers were synthesized in good yields and in five steps or less from pheophytin a (1). In vitro investigations using human carcinoma HEp2 cells show that the 15(2)-lysyl regioisomers accumulate the most within cells, and the most phototoxic are the 13(1) regioisomers. The main determinant of biological efficacy appears to be the conjugation site, probably because of molecular conformation. Molecular modeling investigations reveal that the 17(3)-substituted chlorin e(6) conjugates are L-shaped, the 15(2) and 13(1) regioisomers assume extended conformations, and the 13(1) derivatives are nearly linear. It is hypothesized that the 13(1)-aspartylchlorin e(6) conjugate may be a more efficient photosensitizer for PDT than the commercial currently used 15(2) derivative.
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46
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Li JZ, Cui BC, Wang JJ, Shim YK. Aldol-Like Carbon-Carbon Condensation for Pyridyl Substituted Chlorins. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.7.2465] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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47
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Dabrowski JM, Arnaut LG, Pereira MM, Monteiro CJP, Urbańska K, Simões S, Stochel G. New halogenated water-soluble chlorin and bacteriochlorin as photostable PDT sensitizers: synthesis, spectroscopy, photophysics, and in vitro photosensitizing efficacy. ChemMedChem 2011; 5:1770-80. [PMID: 20715283 DOI: 10.1002/cmdc.201000223] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Chlorin and bacteriochlorin derivatives of 5,10,15,20-tetrakis(2-chloro-5-sulfophenyl)porphyrin have intense absorptions in the phototherapeutic window, high water solubility, high photostability, low fluorescence quantum yield, long triplet lifetimes, and high singlet oxygen quantum yields. Biological studies revealed their negligible dark cytotoxicity, yet significant photodynamic effect against A549 (human lung adenocarcinoma), MCF7 (human breast carcinoma) and SK-MEL-188 (human melanoma) cell lines upon red light irradiation (cutoff λ<600 nm) at low light doses. Time-dependent cellular accumulation of the chlorinated sulfonated chlorin reached a plateau at 2 h, as previously observed for the related porphyrin. However, the optimal incubation time for the bacteriochlorin derivative was significantly longer (12 h). The spectroscopic, photophysical, and biological properties of the compounds are discussed in relevance to their PDT activity, leading to the conclusion that the bacteriochlorin derivative is a promising candidate for future in vivo experiments.
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48
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Moisenovich MM, Ol'shevskaya VA, Rokitskaya TI, Ramonova AA, Nikitina RG, Savchenko AN, Tatarskiy VV, Kaplan MA, Kalinin VN, Kotova EA, Uvarov OV, Agapov II, Antonenko YN, Shtil AA. Novel photosensitizers trigger rapid death of malignant human cells and rodent tumor transplants via lipid photodamage and membrane permeabilization. PLoS One 2010; 5:e12717. [PMID: 20856679 PMCID: PMC2939899 DOI: 10.1371/journal.pone.0012717] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Accepted: 08/11/2010] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Apoptotic cascades may frequently be impaired in tumor cells; therefore, the approaches to circumvent these obstacles emerge as important therapeutic modalities. METHODOLOGY/PRINCIPAL FINDINGS Our novel derivatives of chlorin e(6), that is, its amide (compound 2) and boronated amide (compound 5) evoked no dark toxicity and demonstrated a significantly higher photosensitizing efficacy than chlorin e(6) against transplanted aggressive tumors such as B16 melanoma and M-1 sarcoma. Compound 5 showed superior therapeutic potency. Illumination with red light of mammalian tumor cells loaded with 0.1 µM of 5 caused rapid (within the initial minutes) necrosis as determined by propidium iodide staining. The laser confocal microscopy-assisted analysis of cell death revealed the following order of events: prior to illumination, 5 accumulated in Golgi cysternae, endoplasmic reticulum and in some (but not all) lysosomes. In response to light, the reactive oxygen species burst was concomitant with the drop of mitochondrial transmembrane electric potential, the dramatic changes of mitochondrial shape and the loss of integrity of mitochondria and lysosomes. Within 3-4 min post illumination, the plasma membrane became permeable for propidium iodide. Compounds 2 and 5 were one order of magnitude more potent than chlorin e(6) in photodamage of artificial liposomes monitored in a dye release assay. The latter effect depended on the content of non-saturated lipids; in liposomes consisting of saturated lipids no photodamage was detectable. The increased therapeutic efficacy of 5 compared with 2 was attributed to a striking difference in the ability of these photosensitizers to permeate through hydrophobic membrane interior as evidenced by measurements of voltage jump-induced relaxation of transmembrane current on planar lipid bilayers. CONCLUSIONS/SIGNIFICANCE The multimembrane photodestruction and cell necrosis induced by photoactivation of 2 and 5 are directly associated with membrane permeabilization caused by lipid photodamage.
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Affiliation(s)
| | | | - Tatyana I. Rokitskaya
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia
| | | | | | | | | | | | | | - Elena A. Kotova
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia
| | | | - Igor I. Agapov
- Shumakov Research Center of Transplantology and Artificial Organs, Moscow, Russia
| | - Yuri N. Antonenko
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia
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Ethirajan M, Chen Y, Joshi P, Pandey RK. The role of porphyrin chemistry in tumor imaging and photodynamic therapy. Chem Soc Rev 2010; 40:340-62. [PMID: 20694259 DOI: 10.1039/b915149b] [Citation(s) in RCA: 1421] [Impact Index Per Article: 101.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In recent years several review articles and books have been published on the use of porphyrin-based compounds in photodynamic therapy (PDT). This critical review is focused on (i) the basic concept of PDT, (ii) advantages of long-wavelength absorbing photosensitizers (PS), (iii) a brief discussion on recent advances in developing PDT agents, and (iv) the various synthetic strategies designed at the Roswell Park Cancer Institute, Buffalo, for developing highly effective long-wavelength PDT agents and their utility in constructing the conjugates with tumor-imaging and therapeutic potential (Theranostics). The clinical status of certain selected PDT agents is also summarized (205 references).
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Affiliation(s)
- Manivannan Ethirajan
- PDT Center, Cell Stress Biology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
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50
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Lim SH, Nowak-Sliwinska P, Kamarulzaman FA, van den Bergh H, Wagnières G, Lee HB. The neovessel occlusion efficacy of 15-hydroxypurpurin-7-lactone dimethyl ester induced with photodynamic therapy. Photochem Photobiol 2010; 86:397-402. [PMID: 20074086 DOI: 10.1111/j.1751-1097.2009.00684.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this study, the photodynamic therapy (PDT) induced efficacy of a semi-synthesized analogue 15(1)-hydroxypurpurin-7-lactone dimethyl ester or G2, in terms of chick chorioallantoic membrane blood vessel occlusion was evaluated in reference to verteporfin. Early formulation studies showed that G2 prepared in a system of cremophor EL 2.5% and ethanol 2.5% in saline was biocompatible up to 20 microL volume of injection. Following injection, G2 accumulation peaked within the first minute and its extravasation from intra- to extra-vascular occurred somewhat slower as compared with verteporfin. In the PDT study, closure of capillaries and small neovessels was observed with 4 microg per embryo of G2 and a light dose of 20 J cm(-2) at a fluence rate of 40 mW cm(-2) filtered at 400-440 nm-a result that may be considered optimum for the treatment of age-related macular degeneration (AMD). Also, partial occlusion of the large vessels was observed using the same dose of G2 and light-an effect which is desirable for cancer treatment. From this study, we conclude that G2 has the potential to be developed as a therapeutic agent for photodynamic treatment for AMD and cancer.
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Affiliation(s)
- Siang Hui Lim
- Cancer Research Initiatives Foundation (CARIF), Sime Darby Medical Centre, Subang Jaya, Selangor, Malaysia
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