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Synthesis, characterization, and photodynamic activity of new antimicrobial PVC based composite materials. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Won M, Koo S, Li H, Sessler JL, Lee JY, Sharma A, Kim JS. An Ethacrynic Acid‐Brominated BODIPY Photosensitizer (EA‐BPS) Construct Enhances the Lethality of Reactive Oxygen Species in Hypoxic Tumor‐Targeted Photodynamic Therapy. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012687] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Miae Won
- Department of Chemistry Korea University Seoul 02841 Korea
| | - Seyoung Koo
- Department of Chemistry Korea University Seoul 02841 Korea
| | - Hao Li
- Department of Chemistry Sungkyunkwan University Suwon 16419 Korea
| | - Jonathan L. Sessler
- Department of Chemistry University of Texas at Austin Austin TX 78712-1224 USA
| | - Jin Yong Lee
- Department of Chemistry Sungkyunkwan University Suwon 16419 Korea
| | - Amit Sharma
- CSIR—Central Scientific Instruments Organisation Sector-30 C Chandigarh 160030 India
| | - Jong Seung Kim
- Department of Chemistry Korea University Seoul 02841 Korea
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Won M, Koo S, Li H, Sessler JL, Lee JY, Sharma A, Kim JS. An Ethacrynic Acid-Brominated BODIPY Photosensitizer (EA-BPS) Construct Enhances the Lethality of Reactive Oxygen Species in Hypoxic Tumor-Targeted Photodynamic Therapy. Angew Chem Int Ed Engl 2020; 60:3196-3204. [PMID: 33155344 DOI: 10.1002/anie.202012687] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/19/2020] [Indexed: 01/16/2023]
Abstract
Despite being a clinically approved intervention for cancer, photodynamic therapy (PDT) still suffers from limitations. Prime among these is a therapeutic response that is mostly oxygen dependent. This limits the utility of PDT in treating hypoxic tumors since lower levels of cytotoxic reactive oxygen species (ROS) are generated in regions of low oxygen tension. Glutathione-pi (GST-pi) is a key enzyme that militates against ROS-mediated apoptosis. We report herein a new construct, EA-BPS, that contains both a brominated BODIPY photosensitizer (BPS) and an ethacrynic acid (EA) GST-pi inhibitor. Photoirradiation of EA-BPS induces a synergistic antitumor effect that results from the combination of ROS production and GST-pi inhibition. Relative to BPS alone, an enhanced cell-killing effect is seen under hypoxic conditions both in vitro and in vivo. We conclude that by making better use of the available oxygen in tumor environments, improved therapeutic PDT outcomes should be achievable even under hypoxic conditions.
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Affiliation(s)
- Miae Won
- Department of Chemistry, Korea University, Seoul, 02841, Korea
| | - Seyoung Koo
- Department of Chemistry, Korea University, Seoul, 02841, Korea
| | - Hao Li
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Korea
| | - Jonathan L Sessler
- Department of Chemistry, University of Texas at Austin, Austin, TX, 78712-1224, USA
| | - Jin Yong Lee
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Korea
| | - Amit Sharma
- CSIR-Central Scientific Instruments Organisation, Sector-30 C, Chandigarh, 160030, India
| | - Jong Seung Kim
- Department of Chemistry, Korea University, Seoul, 02841, Korea
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Comuzzi C, Fiorot A, Baggio A, Maifreni M, Strazzolini P, Marino M, Susmel S. Imprinting Pentaphyrin on Conductive Electropolymerized Dipyrromethane Films: A New Strategy towards the Synthesis of Photokilling Materials. Chempluschem 2020; 85:776-782. [PMID: 32202701 DOI: 10.1002/cplu.202000137] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/04/2020] [Indexed: 12/22/2022]
Abstract
We report herein the synthesis and photoinduced bactericidal activity of two new polymeric materials, obtained by imprinting the photosensitizer 20-(4-carboxyphenyl)-2,13-dimethyl-3,12-diethyl-[22]pentaphyrin (PCox, 1) into suitable electropolymerized dipyrromethane films. 5-Phenyl-dipyrromethane (5-ph-DP) and 5-(4-pyridyl)dipyrromethane (5-py-DP) have been selected as the monomers for the synthesis of the materials in order to assess the correlation between the substituent in C5 and the capability in Pcox uptake. Both films have been tested in their photokilling ability toward Staphylococcus aureus by using a multi-LED blue lamp at a fluence rate of 40 W/m2 . Poly-5-py-DP/PCox, with a PCox load of 10-8 mol/cm2 , achieved a 4-log reduction in microbial viability after 60 min of irradiation. The polymeric films proved to be stable over time and under oxidation conditions; in addition, no loss of photosensitizer was observed during the experiments, thus demonstrating that the bactericidal action was effectively brought by the ROS generated by PCox immobilized in the material. After use, the films were recharged with PCox, with almost complete recovery of their photodynamic efficiency.
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Affiliation(s)
- Clara Comuzzi
- Department of Agricultural Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 208, 33100, Udine, Italy
| | - Andrea Fiorot
- Department of Agricultural Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 208, 33100, Udine, Italy
| | - Anna Baggio
- Department of Agricultural Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 208, 33100, Udine, Italy
| | - Michela Maifreni
- Department of Agricultural Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 208, 33100, Udine, Italy
| | - Paolo Strazzolini
- Department of Agricultural Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 208, 33100, Udine, Italy
| | - Marilena Marino
- Department of Agricultural Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 208, 33100, Udine, Italy
| | - Sabina Susmel
- Department of Agricultural Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 208, 33100, Udine, Italy
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Rapozzi V, Beverina L, Salice P, Pagani GA, Camerin M, Xodo LE. Photooxidation and Phototoxicity of π-Extended Squaraines. J Med Chem 2010; 53:2188-96. [DOI: 10.1021/jm901727j] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Valentina Rapozzi
- Department of Biomedical Science and Technology, University of Udine, P.le Kolbe 4, I-33100 Udine, Italy
| | - Luca Beverina
- Department of Materials Science and INSTM, University of Milano-Bicocca, via Cozzi 53 I-20125 Milano, Italy
| | - Patrizio Salice
- Department of Materials Science and INSTM, University of Milano-Bicocca, via Cozzi 53 I-20125 Milano, Italy
| | - Giorgio A. Pagani
- Department of Materials Science and INSTM, University of Milano-Bicocca, via Cozzi 53 I-20125 Milano, Italy
| | - Monica Camerin
- Department of Biology, Via U. Bassi 58/B, University of Padova, 35131 Padova, Italy
| | - Luigi E. Xodo
- Department of Biomedical Science and Technology, University of Udine, P.le Kolbe 4, I-33100 Udine, Italy
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