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Liu S, Liu C, Zhang H, Zhang W, Ding W, Zheng H, Li H. Sulfite induced degradation of sulfamethoxazole by a silica stabilized ZIF-67(Co) catalyst via non-radical pathways: Formation and role of high-valent Co(IV) and singlet oxygen. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:133888. [PMID: 38412645 DOI: 10.1016/j.jhazmat.2024.133888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/27/2024] [Accepted: 02/23/2024] [Indexed: 02/29/2024]
Abstract
The sulfite (S(IV))-based advanced oxidation process (AOP) has emerged as an appealing alternative to the traditional persulfate-based AOP for the elimination of organic contaminants from diverse water matrices. In this work, a silica reinforced ZIF-67(Co) catalyst (CZS) is fabricated, characterized and tested in the activation of S(IV) for the sulfamethoxazole (SMX) degradation. The prepared CZS demonstrates superior stability and catalytic ability for the degradation of SMX compared to ZIF-67(Co) across a broad pH range. Unlike the conventional radical-dominated oxidation systems, the CZS/S(IV) system for SMX degradation operates through a non-radical mechanism, featuring high-valent Co(IV) and singlet oxygen (1O2) as the predominated reactive species. The hydroxylated Co species exposed on the CZS surface is identified as the pivotal active site, realizing the S(IV) activation through a complexation-electron transfer process, resulting in the production of various reactive intermediates. Co(II) undergoes the conversion to Co(IV) by generated HSO5-, and 1O2 predominantly originates from the intermediate SO4•-. Profiting from the highly selective oxidation capacities of Co(IV) and 1O2, the established oxidative system demonstrates a remarkable interference resistance and exhibits an exceptional decontamination performance under real-world water conditions. In short, this work provides a sustainable S(IV)-based oxidation strategy for environmental remediation via non-radical mechanism.
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Affiliation(s)
- Shuang Liu
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China
| | - Chao Liu
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China
| | - Hejiao Zhang
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China
| | - Weizhen Zhang
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China
| | - Wei Ding
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China.
| | - Huaili Zheng
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Hong Li
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China
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Gao Y, Li S, Gong L, Li J, Qi D, Liu N, Bian Y, Jiang J. Unprecedented POSS-Linked 3D Covalent Organic Frameworks with 2-Fold Interpenetrated scu or sqc Topology Regulated by Porphyrin Center for Photocatalytic CO 2 Reduction. Angew Chem Int Ed Engl 2024:e202404156. [PMID: 38619506 DOI: 10.1002/anie.202404156] [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: 02/29/2024] [Revised: 04/15/2024] [Accepted: 04/15/2024] [Indexed: 04/16/2024]
Abstract
The synthesis and characterization of porphyrin center regulated three-dimensional covalent organic frameworks (COFs) with 2-fold interpenetrated scu or sqc topology have been investigated. These COFs exhibit unique structural features and properties, making them promising candidates for photocatalytic applications in CO2 reduction and artemisinin synthesis. The porphyrin center serves as an anchor for metal ions, allowing precise control over structures and functions of the frameworks. Furthermore, the metal coordination within the framework imparts desirable catalytic properties, enabling their potential use in photocatalytic reactions. Overall, these porphyrin center regulated metal-controlled COFs offer exciting opportunities for the development of advanced materials with tailored functionalities.
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Affiliation(s)
- Ying Gao
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Senzhi Li
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Lei Gong
- National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, China
| | - Jing Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Dongdong Qi
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Naifang Liu
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yongzhong Bian
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Daxing Research Institute, Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Jianzhuang Jiang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Daxing Research Institute, Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing, 100083, China
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Yue B, Liu S, Zhang W, Ding W, Zheng H, Li H. Cobalt(II) mediated calcium sulfite activation for efficient oxidative decontamination in waters: Performance, kinetics and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132731. [PMID: 37813035 DOI: 10.1016/j.jhazmat.2023.132731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/20/2023] [Accepted: 10/05/2023] [Indexed: 10/11/2023]
Abstract
To overcome the drawback that excess SO32- from soluble Na2SO3 captures the generated reactive intermediates in sulfite (S(IV))-based advanced oxidation processes (AOP), CaSO3 of the ability to slowly release SO32- is selected as an alternative S(IV) source to establish an enduring S(IV)-based AOP with Co(II). Herein, the Co(II)/CaSO3 process triggers a much better ofloxacin (OFL) degradation than the Co(II)/Na2SO3 process (degradation rate constant: 12.1 > 3.18 mM-1 min-1). The mechanism investigation corroborates that the Co(II) mediated CaSO3 activation follows a Fenton-like process (complexation followed by intramolecular electron transfer). Apart from the conventional sulfate radical (SO4•-), Co(IV) species and singlet oxygen (1O2) are also certifiably involved in Co(II)/CaSO3 process, and their role and formation mechanisms are elucidated comprehensively. Further, the proposed Co(II)/CaSO3 process exhibits an excellent tolerance to complex water matrices (e.g., background ions and humic acid), suggesting its practical application potential for various contaminants abatement in actual wastewater.
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Affiliation(s)
- Bangkang Yue
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China
| | - Shuang Liu
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China
| | - Weizhen Zhang
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China
| | - Wei Ding
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China.
| | - Huaili Zheng
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Hong Li
- College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China.
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Lioret V, Bellaye PS, Bernhard Y, Moreau M, Guillemin M, Drouet C, Collin B, Decréau RA. Cherenkov Radiation induced photodynamic therapy - repurposing older photosensitizers, and radionuclides. Photodiagnosis Photodyn Ther 2023; 44:103816. [PMID: 37783257 DOI: 10.1016/j.pdpdt.2023.103816] [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: 03/21/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/04/2023]
Abstract
CONTEXT Old-generation photosensitizers are minimally used in current photodynamic therapy (PDT) because they absorb in the UV/blue/green region of the spectrum where biological tissues are generally highly absorbing. The UV/blue light of Cherenkov Radiation (CR) from nuclear disintegration of beta-emitter radionuclides shows promise as an internal light source to activate these photosensitizers within tissue. Outline of the study: 1) radionuclide choice and Cherenkov Radiation, 2) Photosensitizer choice, synthesis and radiolabeling, 3) CR-induced fluorescence, 4) Verification of ROS formation, 5) CR-induced PDT with either free eosine and free CR emitter, or with radiolabelled eosin. RESULTS Cherenkov Radiation Energy Transfer (CRET) from therapeutic radionuclides (90Y) and PET imaging radionuclides (18F, 68Ga) to eosin was shown by spectrofluorimetry and in vitro, and was shown to result in a PDT process. The feasibility of CR-induced PDT (CR-PDT) was demonstrated in vitro on B16F10 murine melanoma cells mixing free eosin (λabs = 524 nm, ΦΔ 0.67) with free CR-emitter [18F]-FDG under their respective intrinsic toxicity levels (0.5 mM/8 MBq) and by trapping singlet oxygen with diphenylisobenzofuran (DPBF). An eosin-DOTAGA-chelate conjugate 1 was synthesized and radiometallated with CR-emitter [68Ga] allowed to reach 25 % cell toxicity at 0.125 mM/2 MBq, i.e. below the toxicity threshold of each component measured on controls. Incubation time was carefully examined, especially for CR emitters, in light of its toxicity, and its CR-emitting yield expected to be 3 times as much for 68Ga than 18F (considering their β particle energy) per radionuclide decay, while its half-life is about twice as small. PERSPECTIVE This study showed that in complete darkness, as it is at depth in tissues, PDT could proceed relying on CR emission from radionuclides only. Interestingly, this study also repurposed PET imaging radionuclides, such as 68Ga, to trigger a therapeutic event (PDT), albeit in a modest extent. Moreover, although it remains modest, such a PDT approach may be used to achieve additional tumoricidal effect to RIT treatment, where radionuclides, such as 90Y, are strong CR emitters, i.e. very potent light source for photosensitizer activation.
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Affiliation(s)
- Vivian Lioret
- ICMUB Institute (Chemistry Department) Sciences Mirande, Université de Bourgogne Franche Comté, 9 Avenue Alain Savary, Dijon 21078, France
| | | | - Yann Bernhard
- ICMUB Institute (Chemistry Department) Sciences Mirande, Université de Bourgogne Franche Comté, 9 Avenue Alain Savary, Dijon 21078, France
| | - Mathieu Moreau
- ICMUB Institute (Chemistry Department) Sciences Mirande, Université de Bourgogne Franche Comté, 9 Avenue Alain Savary, Dijon 21078, France
| | - Mélanie Guillemin
- Centre George François Leclerc, 1 rue du Professeur Marion, Dijon 21079, France
| | - Camille Drouet
- Centre George François Leclerc, 1 rue du Professeur Marion, Dijon 21079, France
| | - Bertrand Collin
- ICMUB Institute (Chemistry Department) Sciences Mirande, Université de Bourgogne Franche Comté, 9 Avenue Alain Savary, Dijon 21078, France; Centre George François Leclerc, 1 rue du Professeur Marion, Dijon 21079, France
| | - Richard A Decréau
- ICMUB Institute (Chemistry Department) Sciences Mirande, Université de Bourgogne Franche Comté, 9 Avenue Alain Savary, Dijon 21078, France.
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Lee YL, Chou YT, Su BK, Wu CC, Wang CH, Chang KH, Ho JAA, Chou PT. Comprehensive Thione-Derived Perylene Diimides and Their Bio-Conjugation for Simultaneous Imaging, Tracking, and Targeted Photodynamic Therapy. J Am Chem Soc 2022; 144:17249-17260. [PMID: 36069676 DOI: 10.1021/jacs.2c07967] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study, the chromophore 3,4,9,10-perylenetetracarboxylic diimide (PDI) is anchored with phenyl substituents at the imide N site, followed by thionation, yielding a series of thione products 1S-PDI-D, 2S-cis-PDI-D, 2S-trans-PDI-D, 3S-PDI-D, and 4S-PDI-D, respectively, with n = 1, 2, 3, and 4 thione. The photophysical properties are dependent on the number of anchored thiones, where the observed prominent lower-lying absorption is assigned to the S0 → S2(ππ*) transition and is red-shifted upon increasing the number of thiones; the lowest-lying excited state is ascribed to a transition-forbidden S1(nπ*) configuration. All nS-PDIs are non-emissive in solution but reveal an excellent two-photon absorption cross-section of >800 GM. Supported by the femtosecond transient absorption study, the S1(nπ*) → T1(ππ*) intersystem crossing (ISC) rate is > 1012 s-1, resulting in ∼100% triplet population. The lowest-lying T1(ππ*) energy is calculated to be in the order of 1S-PDI-D > 2S-cis-PDI-D ∼ 2S-trans-PDI-D > 3S-PDI-D > 4S-PDI-D, where the T1 energy of 1S-PDI-D (1.10 eV) is higher than that (0.97 eV) of the 1O2 1Δg state. 1S-PDI-D is further modified by either conjugation with peptide FC131 on the two terminal sides, forming 1S-FC131, or linkage with peptide FC131 and cyanine5 dye on each terminal, yielding Cy5-1S-FC131. In vitro experiments show power of 1S-FC131 and Cy5-1S-FC131 in recognizing A549 cells out of other three lung normal cells and effective photodynamic therapy. In vivo, both molecular composites demonstrate outstanding antitumor ability in A549 xenografted tumor mice, where Cy5-1S-FC131 shows superiority of simultaneous fluorescence tracking and targeted photodynamic therapy.
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Affiliation(s)
- Yao-Lin Lee
- Department of Chemistry, National Taiwan University, 10617 Taipei, Taiwan
| | - Yi-Te Chou
- Department of Biochemical Science and Technology/Department of Chemistry, National Taiwan University, 10617 Taipei, Taiwan
| | - Bo-Kang Su
- Department of Chemistry, National Taiwan University, 10617 Taipei, Taiwan
| | - Chi-Chi Wu
- Department of Chemistry, National Taiwan University, 10617 Taipei, Taiwan
| | - Chih-Hsing Wang
- Department of Chemistry, National Taiwan University, 10617 Taipei, Taiwan
| | - Kai-Hsin Chang
- Department of Chemistry, National Taiwan University, 10617 Taipei, Taiwan
| | - Ja-An Annie Ho
- Department of Biochemical Science and Technology/Department of Chemistry, National Taiwan University, 10617 Taipei, Taiwan
| | - Pi-Tai Chou
- Department of Chemistry, National Taiwan University, 10617 Taipei, Taiwan
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Dong Y, Dong S, Liu B, Yu C, Liu J, Yang D, Yang P, Lin J. 2D Piezoelectric Bi 2 MoO 6 Nanoribbons for GSH-Enhanced Sonodynamic Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2106838. [PMID: 34655115 DOI: 10.1002/adma.202106838] [Citation(s) in RCA: 130] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Indexed: 06/13/2023]
Abstract
Reducing the scavenging capacity of reactive oxygen species (ROS) and elevating ROS production are two primary goals of developing novel sonosensitizers for sonodynamic therapy (SDT). Hence, ultrathin 2D Bi2 MoO6 -poly(ethylene glycol) nanoribbons (BMO NRs) are designed as piezoelectric sonosensitizers for glutathione (GSH)-enhanced SDT. In cancer cells, BMO NRs can consume endogenous GSH to disrupt redox homeostasis, and the GSH-activated BMO NRs (GBMO) exhibit an oxygen-deficient structure, which can promote the separation of electron-hole pairs, thereby enhancing the efficiency of ROS production in SDT. The ultrathin GBMO NRs are piezoelectric, in which ultrasonic waves introduce mechanical strain to the nanoribbons, resulting in piezoelectric polarization and band tilting, thus accelerating toxic ROS production. The as-synthesized BMO NRs enable excellent computed tomography imaging of tumors and significant tumor suppression in vitro and in vivo. A piezoelectric Bi2 MoO6 sonosensitizer-mediated two-step enhancement SDT process, which is activated by endogenous GSH and amplified by exogenous ultrasound, is proposed. This process not only provides new options for improving SDT but also broadens the application of 2D piezoelectric materials as sonosensitizers in SDT.
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Affiliation(s)
- Yushan Dong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Shuming Dong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Bin Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Chenghao Yu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Jing Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Dan Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Piaoping Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
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Dai L, Shen G, Wang Y, Yang P, Wang H, Liu Z. PSMA-targeted melanin-like nanoparticles as a multifunctional nanoplatform for prostate cancer theranostics. J Mater Chem B 2021; 9:1151-1161. [PMID: 33434248 DOI: 10.1039/d0tb02576c] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Prostate-specific membrane antigen (PSMA) is highly expressed on the surface of most prostate tumor cells and is considered a promising target for prostate cancer imaging and treatment. It is possible to establish a PSMA-targeted theranostic probe to achieve early diagnosis and treatment of this cancer type. In this contribution, we prepared a multifunctional melanin-like polydopamine (PDA) nanocarrier decorated with a small-molecule PSMA inhibitor, N-[N-[(S)-1,3-dicarboxypropyl]carbamoyl]-(S)-l-lysine (DCL). PDA-DCL was then functionalized with perfluoropentane (PFP) and loaded with the photosensitizer chlorin e6 (Ce6) to give Ce6@PDA-DCL-PFP, which was successfully used for ultrasound-guided combined photodynamic/photothermal therapy (PDT/PTT) of prostate cancer. Compared with the corresponding non-targeted probe (Ce6@PDA-PEG-PFP), our targeted probe induced higher cellular uptake in vitro (6.5-fold) and more tumor accumulation in vivo (4.6-fold), suggesting strong active targeting capacity. Meanwhile, this new nanoplatform significantly enhanced the ultrasound contrast signal at the tumor site in vivo, thus facilitating precise and real-time detection of the tumor. In addition, this Ce6-loaded PDA nanoplatform produced a synergistic effect of PDT and PTT under 660 nm and 808 nm irradiation, inducing a more efficient killing effect compared with the individual therapy in vitro and in vivo. Furthermore, the tumor in the targeted group was more effectively suppressed than that in the non-targeted group under the same irradiation condition. This multifunctional probe may hold great potential for precise and early theranostics of prostate cancer.
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Affiliation(s)
- Liqun Dai
- Department of Nuclear Medicine, Laboratory of Clinical Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
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Zareian S, Zargar SJ, Safarian S, Mozdoori N. Investigation of Photodynamic Therapy on Breast Cancer Cell Lines Using LaF3:Tb Nanoparticles Conjugated with Meso-tetra(4-carboxyphenyl) Porphine. J CLUST SCI 2021. [DOI: 10.1007/s10876-020-01951-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Dong Y, Li G, Wang L, Cao L, Li Y, Zhao W. Anti-tumor evaluation of a novel methoxyphenyl substituted chlorin photosensitizer for photodynamic therapy. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 211:112015. [PMID: 32927294 DOI: 10.1016/j.jphotobiol.2020.112015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 08/26/2020] [Accepted: 09/02/2020] [Indexed: 12/22/2022]
Abstract
Photodynamic therapy (PDT) is a non-invasive and innovative therapeutic approach which has been increasingly applied in clinical cancer therapy. As the central element of PDT, the development of novel photosensitizers (PSs) with longer absorption wavelength, proper lipophilic/hydrophilic profiles, target tissue selectivity, and higher photo-/lowest dark-cytotoxicity is a challenging task. Previously, we designed and synthesized a series of novel long-wavelength chlorin e6 (Ce6)-based PSs via introducing aromatic groups to the vinyl of Ce6 skeleton. The new formed compounds with π-extension system exhibited improved photodynamic effects and spectral characteristics. Among these π-conjugated chlorin PSs, (E)-32-(4-methoxyphenyl)-chlorin e6, named A15, was expected to be a potent antitumor candidate as a PDT agent due to its good photobiological properties. Herein, in this work, we evaluated the effectiveness of A15 in cancer PDT. In vitro, a novel rare earth probe, ATTA-Eu3+ was applied to detect the singlet oxygen (1O2) production of A15 in solution and human hepatoma HepG2 cells, respectively. Moreover, A15 exhibited strong phototoxicity and weak dark cytotoxity to HepG2 cells. In H22 tumor bearing mice, A15 showed excellent tumor accumulation ability via i.v. administration and induced tumor regression, followed by laser treatment. These results indicated that A15 is a potential novel π-extension chlorin-type PS for PDT applications.
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Affiliation(s)
- Yi Dong
- Department of Pharmacy, School of Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China
| | - Guangzhe Li
- Department of Pharmacy, School of Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China.
| | - Liu Wang
- Department of Pharmacy, School of Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China
| | - Lei Cao
- Department of Pharmacy, School of Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China
| | - Yueqing Li
- Department of Pharmacy, School of Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China
| | - Weijie Zhao
- Department of Pharmacy, School of Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China.
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Linden G, Vázquez O. Bioorthogonal Turn-On BODIPY-Peptide Photosensitizers for Tailored Photodynamic Therapy. Chemistry 2020; 26:10014-10023. [PMID: 32638402 PMCID: PMC7496803 DOI: 10.1002/chem.202001718] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/22/2020] [Indexed: 12/13/2022]
Abstract
Photodynamic therapy (PDT) leads to cancer remission via the production of cytotoxic species under photosensitizer (PS) irradiation. However, concomitant damage and dark toxicity can both hinder its use. With this in mind, we have implemented a versatile peptide-based platform of bioorthogonally activatable BODIPY-tetrazine PSs. Confocal microscopy and phototoxicity studies demonstrated that the incorporation of the PS, as a bifunctional module, into a peptide enabled spatial and conditional control of singlet oxygen (1 O2 ) generation. Comparing subcellular distribution, PS confined in the cytoplasmic membrane achieved the highest toxicities (IC50 =0.096±0.003 μm) after activation and without apparent dark toxicity. Our tunable approach will inspire novel probes towards smart PDT.
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Affiliation(s)
- Greta Linden
- Fachbereich ChemiePhilipps-Universität MarburgHans-Meerwein-Straße 435043MarburgGermany
| | - Olalla Vázquez
- Fachbereich ChemiePhilipps-Universität MarburgHans-Meerwein-Straße 435043MarburgGermany
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11
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Zhou J, Sun C, Yu C. Highly-controllable drug release from core cross-linked singlet oxygen-responsive nanoparticles for cancer therapy. RSC Adv 2020; 10:19997-20008. [PMID: 35520443 PMCID: PMC9054206 DOI: 10.1039/d0ra02053b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/14/2020] [Indexed: 11/21/2022] Open
Abstract
Highly-controllable release consisting of preventing unnecessary drug leakage at physiologically normal tissues and triggering sufficient drug release at tumor sites is the main aim of nanoparticle-based tumor therapy. Developing drug-conjugation strategies with covalent bonds in response to a characteristic stimulus, such as reactive oxygen species (ROS) generated by photodynamic therapy (PDT) has attracted much attention. ROS can not only cause cytotoxicity, but also trigger the cleavage of ROS-responsive linkers. Therefore, it is feasible to design a new model of controlled drug release via the breakage of ROS-responsive linkers and degradation of nanoparticles. The self-supply of the stimulus and highly-controllable drug release can be achieved by encapsulation of photosensitizer (PS) and chemotherapeutic drugs simultaneously without any support of tumor endogenous stimuli. Therefore, we used thioketal (TK) linkers as the responsive linkers due to their reaction with singlet oxygen (1O2, SO), a type of ROS. They were conjugated to the side groups of polyphosphoesters (PPE) via click chemistry to acquire the core cross-linked SO-responsive PPE nanoparticles poly(thioketal phosphoesters) (TK-PPE). TK-PPE coated with the photosensitizer chlorin e6 (Ce6) and chemotherapeutic drug doxorubicin (DOX) simultaneously were prepared and named as TK-PPECe6&DOX. TK-PPECe6&DOX kept stable due to the high stability of the TK-linkers in the normal physiological environment. With self-production of SO as the stimulating factor from the encapsulated Ce6, highly-controlled drug release was achieved. After incubation of tumor cells, 660 nm laser irradiation induced SO generation, resulting in the cleavage of TK-linkers and boosted-release of DOX. Highly-controllable drug release of TK-PPECe6&DOX through self-production of stimulus increased antitumor efficacy, offering a promising avenue for clinical on-demand chemotherapy. Core cross-linked singlet oxygen-responsive nanoparticle TK-PPECe6&DOX could achieve highly-controllable drug release through self-production of SO as the stimulus to increase antitumor efficacy for cancer therapy.![]()
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Affiliation(s)
- Jiayan Zhou
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital Tianjin 300052 P. R. China
| | - Chunyang Sun
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital Tianjin 300052 P. R. China
| | - Chunshui Yu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital Tianjin 300052 P. R. China
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12
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Linden G, Zhang L, Pieck F, Linne U, Kosenkov D, Tonner R, Vázquez O. Gezielte Singulett‐Sauerstofferzeugung durch bioorthogonale DNA‐basierte Tetrazin‐Ligation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907093] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Greta Linden
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 4 35043 Marburg Deutschland
| | - Lei Zhang
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 4 35043 Marburg Deutschland
| | - Fabian Pieck
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 4 35043 Marburg Deutschland
| | - Uwe Linne
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 4 35043 Marburg Deutschland
| | - Dmitri Kosenkov
- Department of Chemistry and Physics Monmouth University 400 Cedar Avenue West Long Branch NJ 07764 USA
| | - Ralf Tonner
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 4 35043 Marburg Deutschland
| | - Olalla Vázquez
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 4 35043 Marburg Deutschland
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13
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Linden G, Zhang L, Pieck F, Linne U, Kosenkov D, Tonner R, Vázquez O. Conditional Singlet Oxygen Generation through a Bioorthogonal DNA-targeted Tetrazine Reaction. Angew Chem Int Ed Engl 2019; 58:12868-12873. [PMID: 31291504 DOI: 10.1002/anie.201907093] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Indexed: 12/22/2022]
Abstract
We report the use of bioorthogonal reactions as an original strategy in photodynamic therapy to achieve conditional phototoxicity and specific subcellular localization simultaneously. Our novel halogenated BODIPY-tetrazine probes only become efficient photosensitizers (ΦΔ ≈0.50) through an intracellular inverse-electron-demand Diels-Alder reaction with a suitable dienophile. Ab initio computations reveal an activation-dependent change in decay channels that controls 1 O2 generation. Our bioorthogonal approach also enables spatial control. As a proof-of-concept, we demonstrate the feasibility of the selective activation of our dormant photosensitizer in cellular nuclei, causing cancer cell death upon irradiation. Thus, our dual biorthogonal, activatable photosensitizers open new venues to combat current limitations of photodynamic therapy.
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Affiliation(s)
- Greta Linden
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany
| | - Lei Zhang
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany
| | - Fabian Pieck
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany
| | - Uwe Linne
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany
| | - Dmitri Kosenkov
- Department of Chemistry and Physics, Monmouth University, 400 Cedar Avenue, West Long Branch, NJ, 07764, USA
| | - Ralf Tonner
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany
| | - Olalla Vázquez
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany
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14
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Marydasan B, Nair RR, Babu PSS, Ramaiah D, Nair SA. Picolyl Porphyrin Nanostructures as a Functional Drug Entrant for Photodynamic Therapy in Human Breast Cancers. ACS OMEGA 2019; 4:12808-12816. [PMID: 31460405 PMCID: PMC6682089 DOI: 10.1021/acsomega.9b01380] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 06/19/2019] [Indexed: 05/07/2023]
Abstract
The major challenge in photodynamic therapy (PDT) is to discover versatile photosensitizers (PSs) that possess good solubility in biological media, enhanced singlet oxygen generation efficacy, and photodynamic activity. Working in this direction, we synthesized a picolylamine-functionalized porphyrin conjugate, compound 1, and its zinc complex compound 2. Compound 1 forms spherical structures in methanol, whereas compound 2 exhibited vesicular structures. Compared to the existing PSs like foscan and photofrin, compound 2 exhibited a high singlet oxygen generation efficiency and triplet quantum yield. The complex also showed good water solubility, and its PDT activity was demonstrated through in vitro studies using MDA-MB 231 breast cancer cells. The mechanism of biological activity evaluated using various techniques proved that the active compound 2 induced predominantly singlet oxygen-triggered apoptosis-mediated cancerous cell death. Our results demonstrate that zinc insertion in the picolyl porphyrin induces an enhanced triplet excited state, and the singlet oxygen yields quantitatively and imparts excellent in vitro photodynamic activity, thereby demonstrating their pertinence as a nanodrug in future photobiological applications.
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Affiliation(s)
- Betsy Marydasan
- Cancer
Research Programme, Rajiv Gandhi Centre
for Biotechnology, Trivandrum 695014, Kerala, India
- E-mail: (B.M.)
| | - Rajshree R. Nair
- Cancer
Research Programme, Rajiv Gandhi Centre
for Biotechnology, Trivandrum 695014, Kerala, India
| | - P. S. Saneesh Babu
- Cancer
Research Programme, Rajiv Gandhi Centre
for Biotechnology, Trivandrum 695014, Kerala, India
| | - Danaboyina Ramaiah
- Chemistry
Department, CSIR-North East Institute of
Science and Technology (CSIR-NEIST), Jorhat 785 006, India
| | - S. Asha Nair
- Cancer
Research Programme, Rajiv Gandhi Centre
for Biotechnology, Trivandrum 695014, Kerala, India
- E-mail: . Phone: 91-04712529501 (S.A.N.)
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15
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Wu X, Yan P, Ren Z, Wang Y, Cai X, Li X, Deng R, Han G. Ferric Hydroxide-Modified Upconversion Nanoparticles for 808 nm NIR-Triggered Synergetic Tumor Therapy with Hypoxia Modulation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:385-393. [PMID: 30556390 DOI: 10.1021/acsami.8b18427] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The efficacy of dynamic therapy for solid tumors suffers daunting challenges induced by tumor hypoxia. Herein, we report a biocompatible nanosystem containing Fe(OH)3-modified upconversion nanoparticles (UCNPs) for promoting synergetic chemo- and photodynamic therapy with the modulation of tumor hypoxia. In this system, UCNPs convert 808 nm near-infrared excitation to visible photon energy, which stimulates chlorin-e6 photosensitizers to generate toxic reactive oxygen species (ROS) by consumption of dissolved oxygen in cancer cells. Importantly, we employ Fe(OH)3 compounds to enable continuous oxygen generation in cancer cells and, meanwhile, induce extra ROS formation through the Fenton-like reaction. The system consequently improves the tumor treatment efficacy in vitro and in vivo. This study puts forward a novel combinatorial therapeutic platform for tumor microenvironment modulation and enhanced cancer therapy.
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Affiliation(s)
- Xiao Wu
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering , Zhejiang University , Hangzhou 310027 , P. R. China
| | - Peijian Yan
- Key Laboratory of Endoscopic Technique Research of Zhejiang Province, Sir Run Run Shaw Hospital , Zhejiang University , Hangzhou 310016 , P. R. China
| | - Zhaohui Ren
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering , Zhejiang University , Hangzhou 310027 , P. R. China
| | - Yifan Wang
- Key Laboratory of Endoscopic Technique Research of Zhejiang Province, Sir Run Run Shaw Hospital , Zhejiang University , Hangzhou 310016 , P. R. China
| | - Xiujun Cai
- Key Laboratory of Endoscopic Technique Research of Zhejiang Province, Sir Run Run Shaw Hospital , Zhejiang University , Hangzhou 310016 , P. R. China
| | - Xiang Li
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering , Zhejiang University , Hangzhou 310027 , P. R. China
| | - Renren Deng
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering , Zhejiang University , Hangzhou 310027 , P. R. China
| | - Gaorong Han
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering , Zhejiang University , Hangzhou 310027 , P. R. China
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16
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Leichnitz S, Heinrich J, Kulak N. A fluorescence assay for the detection of hydrogen peroxide and hydroxyl radicals generated by metallonucleases. Chem Commun (Camb) 2018; 54:13411-13414. [PMID: 30427336 DOI: 10.1039/c8cc06996d] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Metal complexes can initiate DNA cleavage by the formation of reactive oxygen species (ROS). A conventional assay to probe for ROS is to add quenchers in a gel electrophoresis experiment. As we show here, such an assay is neither selective nor reliable. Instead, we suggest the use of simple fluorogens, as tested here with several metallonucleases for the detection of H2O2 and HO˙.
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Affiliation(s)
- S Leichnitz
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany.
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17
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Chang DD, Yang WH, Dai XH, Wang JX, Chen L, Pan JM, Yan YS, Dai YR. Click synthesis of glycosylated porphyrin-cored PAMAM dendrimers with specific recognition and thermosensitivity. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1640-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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18
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Han Y, Chen Z, Zhao H, Zha Z, Ke W, Wang Y, Ge Z. Oxygen-independent combined photothermal/photodynamic therapy delivered by tumor acidity-responsive polymeric micelles. J Control Release 2018; 284:15-25. [PMID: 29894709 DOI: 10.1016/j.jconrel.2018.06.012] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 05/31/2018] [Accepted: 06/08/2018] [Indexed: 01/27/2023]
Abstract
Tumor hypoxia strikingly restricts photodynamic therapy (PDT) efficacy and limits its clinical applications in cancer therapy. The ideal strategy to address this issue is to develop oxygen-independent PDT systems. Herein, the rationally designed tumor pH-responsive polymeric micelles are devised to realize oxygen-independent combined PDT and photothermal therapy (PTT) under near-infrared light (NIR) irradiation. The triblock copolymer, poly(ethylene glycol)-b-poly(ε-caprolactone)-b-poly(2-(piperidin-1-yl)ethyl methacrylate) (PEG-b-PCL-b- PPEMA), was prepared to co-encapsulate cypate and singlet oxygen donor (diphenylanthracene endoperoxide, DPAE) via self-assembly to obtain the micellar delivery system (C/O@N-Micelle). C/O@N-Micelle showed remarkable tumor accumulation and improved cellular internalization (2.1 times) as the pH value was changed from 7.4 during blood circulation to 6.8 in tumor tissues. The micelles could produce a potent hyperthermia for PTT of cypate under 808 nm NIR irradiation, which simultaneously induced thermal cycloreversion of DPAE generating abundant singlet oxygen for PDT without participation of tumor oxygen. Finally, the photothermally triggered PDT and PTT combination achieved efficient tumor ablation without remarkable systemic toxicity in an oxygen-independent manner. This work represents an efficient strategy for oxygen-independent combined PDT and PTT of cancers under NIR irradiation through co-encapsulation of cypate and DPAE into tumor pH-responsive polymeric micelles.
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Affiliation(s)
- Yu Han
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Zhongping Chen
- Department of Chemistry, Anhui Science and Technology University, Fengyang 233100, China
| | - Hong Zhao
- Department of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Zengshi Zha
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Wendong Ke
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Yuheng Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Zhishen Ge
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
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19
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A fluorescent nanoprobe for real-time monitoring of intracellular singlet oxygen during photodynamic therapy. Mikrochim Acta 2018; 185:269. [PMID: 29700623 DOI: 10.1007/s00604-018-2815-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/17/2018] [Indexed: 10/17/2022]
Abstract
Sensing of intracellular singlet oxygen (1O2) is required in order to optimize photodynamic therapy (PDT). An optical nanoprobe is reported here for the optical determination of intracellular 1O2. The probe consists of a porous particle core doped with the commercial 1O2 probe 1,3-diphenylisobenzofuran (DPBF) and a layer of poly-L-lysine. The nanoparticle probes have a particle size of ~80 nm in diameter, exhibit good biocompatibility, improved photostability and high sensitivity for 1O2 in both absorbance (peak at 420 nm) and fluorescence (with excitation/emission peaks at 405/458 nm). Nanoprobes doped with 20% of DPBF are best suited even though they suffer from concentration quenching of fluorescence. In comparison with the commercial fluorescent 1O2 probe SOSG, 20%-doped DPBF-NPs (aged) shows higher sensitivity for 1O2 generated at an early stage. The best nanoprobes were used to real-time monitor the PDT-triggered generation of 1O2 inside live cells, and the generation rate is found to depend on the supply of intracellular oxygen. Graphical abstract A fluorescent nanoprobe featured with refined selectivity and improved sensitivity towards 1O2 was prepared from the absorption-based probe DBPF and used to real-time monitoring of the generation of intracellular 1O2 produced during PDT.
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20
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Gayathri T, Vijayalakshmi A, Mangalath S, Joseph J, Rao NM, Singh SP. Study on Liposomal Encapsulation of New Bodipy Sensitizers for Photodynamic Therapy. ACS Med Chem Lett 2018; 9:323-327. [PMID: 29670694 DOI: 10.1021/acsmedchemlett.7b00490] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 02/04/2018] [Indexed: 12/24/2022] Open
Abstract
We report a series of four efficient photosensitizers (PSs) based on a Bodipy core for photodynamic therapy (PDT). In the absence of hydrophilic functional groups, these PSs have been encapsulated in liposomes and examined for photocytotoxicity against human ovarian carcinoma cell line (SK-OV-3). The IC50 values obtained are as low as 0.350 μM, which compete with the classical photosensitizer chlorine E6 (IC50 = 0.39 μM) under similar experimental conditions.
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Affiliation(s)
- Thumuganti Gayathri
- Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Uppal road, Tarnaka, Hyderabad-500007, India
- Academy of Scientific and Innovative Research, Uttar Pradesh-201002, India
| | - A. Vijayalakshmi
- CSIR-Centre for Cellular & Molecular Biology, Hyderabad-500007, India
| | - Sreejith Mangalath
- CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, Kerala 695019, India
| | - Joshy Joseph
- CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, Kerala 695019, India
| | | | - Surya Prakash Singh
- Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Uppal road, Tarnaka, Hyderabad-500007, India
- Academy of Scientific and Innovative Research, Uttar Pradesh-201002, India
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21
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Mukherjee N, Podder S, Mitra K, Majumdar S, Nandi D, Chakravarty AR. Targeted photodynamic therapy in visible light using BODIPY-appended copper(ii) complexes of a vitamin B6Schiff base. Dalton Trans 2018; 47:823-835. [DOI: 10.1039/c7dt03976j] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BODIPY-appended copper(ii) complexes of vitamin B6derivatives localize in mitochondria and exhibit cancer cell selective photocytotoxicity by1O2mediated apoptosis.
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Affiliation(s)
- Nandini Mukherjee
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - Santosh Podder
- Department of Biochemistry
- Indian Institute of Science
- Bangalore 560 012
- India
| | - Koushambi Mitra
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - Shamik Majumdar
- Department of Biochemistry
- Indian Institute of Science
- Bangalore 560 012
- India
| | - Dipankar Nandi
- Department of Biochemistry
- Indian Institute of Science
- Bangalore 560 012
- India
| | - Akhil R. Chakravarty
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
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22
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Liang X, Guo Z, Wei H, Liu X, Lv H, Xing H. Selective photooxidation of sulfides mediated by singlet oxygen using visible-light-responsive coordination polymers. Chem Commun (Camb) 2018; 54:13002-13005. [DOI: 10.1039/c8cc07585a] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel visible-light-responsive coordination polymer for highly selective photooxidation of sulfides to produce sulfoxides through singlet oxygen species.
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Affiliation(s)
- Xiao Liang
- Provincial Key Laboratory of Advanced Energy Materials
- College of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Zhifen Guo
- Provincial Key Laboratory of Advanced Energy Materials
- College of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Hongxia Wei
- Provincial Key Laboratory of Advanced Energy Materials
- College of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Xin Liu
- Provincial Key Laboratory of Advanced Energy Materials
- College of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Hui Lv
- Provincial Key Laboratory of Advanced Energy Materials
- College of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Hongzhu Xing
- Provincial Key Laboratory of Advanced Energy Materials
- College of Chemistry
- Northeast Normal University
- Changchun 130024
- China
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23
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Ho-Wu R, Yau SH, Goodson T. Efficient Singlet Oxygen Generation in Metal Nanoclusters for Two-Photon Photodynamic Therapy Applications. J Phys Chem B 2017; 121:10073-10080. [PMID: 29016137 DOI: 10.1021/acs.jpcb.7b09442] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The generation of singlet oxygen (1O2) has been established as the principal mechanism of photodynamic therapy (PDT). Various dyes, metal nanoparticles, and clusters have been shown to sensitize 1O2. However, metal nanoclusters are even more promising candidates as photosensitizers for this purpose. By understanding the optical properties that lead to efficient 1O2 generation, one can fully realize their potential as PDT photosensitizers. Three different metal nanoclusters, Au25, Ag32, and Au144, are investigated for their 1O2 generation efficiency. The Au144 showed a 1O2 generation rate that is 2 orders of magnitude higher than that for Au25 and Ag32, and several orders of magnitude higher than nanoparticles (>5 nm) due to Au144's high absorption cross section-to-volume ratio. The effectiveness of PDT in live cells with nanoclusters was demonstrated by two-photon excitation compared to one-photon excitation. The implication of these results points toward new efficient two-photon 1O2 sensitizers for photodynamic therapy.
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Affiliation(s)
- Rosina Ho-Wu
- Department of Chemistry, University of Michigan , 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Sung Hei Yau
- Department of Chemistry, University of Michigan , 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Theodore Goodson
- Department of Chemistry, University of Michigan , 930 North University Avenue, Ann Arbor, Michigan 48109, United States
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24
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Mojarrad AG, Zakavi S. Photocatalytic Activity of the Molecular Complexes of meso
-Tetraarylporphyrins with Lewis Acids for the Oxidation of Olefins: Significant Effects of Lewis Acids and meso
Substituents. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700264] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Aida G. Mojarrad
- Institute for Advanced Studies in Basic Sciences (IASBS); 45137-66731 Zanjan Iran
| | - Saeed Zakavi
- Institute for Advanced Studies in Basic Sciences (IASBS); 45137-66731 Zanjan Iran
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25
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Garcia-Diaz M, Huang YY, Hamblin MR. Use of fluorescent probes for ROS to tease apart Type I and Type II photochemical pathways in photodynamic therapy. Methods 2016; 109:158-166. [PMID: 27374076 PMCID: PMC5075498 DOI: 10.1016/j.ymeth.2016.06.025] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/27/2016] [Accepted: 06/29/2016] [Indexed: 12/20/2022] Open
Abstract
Photodynamic therapy involves the excitation of a non-toxic dye by harmless visible light to produce a long-lived triplet state that can interact with molecular oxygen to produce reactive oxygen species (ROS), which can damage biomolecules and kill cells. ROS produced by electron transfer (Type 1) include superoxide, hydrogen peroxide and hydroxyl radical (HO), while singlet oxygen (1O2) is produced by energy transfer. Diverse methods exist to distinguish between these two pathways, some of which are more specific or more sensitive than others. In this review we cover the use of two fluorescence probes: singlet oxygen sensor green (SOSG) detects 1O2; and 4-hydroxyphenyl-fluorescein (HPF) that detects HO. Interesting data was collected concerning the photochemical pathways of functionalized fullerenes compared to tetrapyrroles, stable synthetic bacteriochlorins with and without central metals, phenothiazinium dyes interacting with inorganic salts such as azide.
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Affiliation(s)
- Maria Garcia-Diaz
- Department of Pharmacy, University of Copenhagen, Universitetsparken, 2, DK-2100, Copenhagen, Denmark
| | - Ying-Ying Huang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA.
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26
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Development of fluorometric reactive oxygen species assay for photosafety evaluation. Toxicol In Vitro 2016; 34:113-119. [DOI: 10.1016/j.tiv.2016.03.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 03/22/2016] [Accepted: 03/28/2016] [Indexed: 11/23/2022]
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27
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González-Reyes S, Santillán-Cigales JJ, Jiménez-Osorio AS, Pedraza-Chaverri J, Guevara-Guzmán R. Glycyrrhizin ameliorates oxidative stress and inflammation in hippocampus and olfactory bulb in lithium/pilocarpine-induced status epilepticus in rats. Epilepsy Res 2016; 126:126-33. [PMID: 27490898 DOI: 10.1016/j.eplepsyres.2016.07.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 06/29/2016] [Accepted: 07/25/2016] [Indexed: 01/09/2023]
Abstract
Glycyrrhizin (GL) is a triterpene present in the roots and rhizomes of Glycyrrhiza glabra that has anti-inflammatory, hepatoprotective and neuroprotective effects. Recently, it was demonstrated that GL produced neuroprotective effects on the postischemic brain as well as on the kainic acid injury model in rats. In addition to this, GL also prevented excitotoxic effects on primary cultures. The aims of the present study were to evaluate GL scavenging properties and to investigate GL's effect on oxidative stress and inflammation in the lithium/pilocarpine-induced seizure model in two cerebral regions, hippocampus and olfactory bulb, at acute time intervals (3 or 24h) after status epilepticus (SE). Fluorometric methods showed that GL scavenged three reactive oxygen species: hydrogen peroxide, peroxyl radicals and superoxide anions. In contrast, GL was unable to scavenge peroxynitrite, hydroxyl radicals, singlet oxygen and 2,2-diphenil-1-picrylhydrazyl (DPPH) radicals suggesting that GL is a weak scavenger. Additionally, administration of GL (50mg/kg, i.p.) 30min before pilocarpine administration significantly suppressed oxidative stress. Moreover, malondialdehyde levels were diminished and glutathione levels were maintained at control values in both cerebral regions at 3 and 24 after SE. At 24h after SE, glutathione S-transferase and superoxide dismutase activity increased in the hippocampus, while both glutathione reductase and glutathione peroxidase activity were unchanged in the olfactory bulb at that time. In addition, GL suppressed the induction of the proinflammatory cytokines interleukin-1 beta (IL-1β) and tumor necrosis factor alpha (TNF-α) in both cerebral regions evaluated. These results suggest that GL confers protection against pilocarpine damage via antioxidant and anti-inflammatory effects.
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Affiliation(s)
- Susana González-Reyes
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, México
| | - Juan Jair Santillán-Cigales
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, México
| | | | - José Pedraza-Chaverri
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México (UNAM), México
| | - Rosalinda Guevara-Guzmán
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, México.
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Dai XH, Yang WH, Wu C, Jin H, Chang DD, Dai YR, Pan JM, Yan YS. Synthesis and Characterization of Star-Shaped Porphyrin-cored Poly(Glutamic Acid) Conjugates as Highly Efficient Photosensitizers. J PHOTOPOLYM SCI TEC 2016. [DOI: 10.2494/photopolymer.29.823] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiao-Hui Dai
- Institute of Green Chemistry and Chemical Technology, Jiangsu University
- Department of Chemical Engineering, School of Chemistry and Chemical Technology, Jiangsu University
| | - Wei-He Yang
- Department of Chemical Engineering, School of Chemistry and Chemical Technology, Jiangsu University
| | - Chuan Wu
- Department of Chemical Engineering, School of Chemistry and Chemical Technology, Jiangsu University
| | - Hua Jin
- Institute of Green Chemistry and Chemical Technology, Jiangsu University
- School of Chemistry and Chemical Technology, Shanghai Jiaotong University
| | - Dan-Dan Chang
- Department of Chemical Engineering, School of Chemistry and Chemical Technology, Jiangsu University
| | - Yi-Rong Dai
- Hospital Affiliated to Hunan Agricultural University
| | - Jian-Ming Pan
- Department of Chemical Engineering, School of Chemistry and Chemical Technology, Jiangsu University
| | - Yong-Sheng Yan
- Institute of Green Chemistry and Chemical Technology, Jiangsu University
- Department of Chemical Engineering, School of Chemistry and Chemical Technology, Jiangsu University
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29
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Jesu Raj JG, Quintanilla M, Vetrone F. Near-infrared triggered generation of reactive oxygen species from upconverting nanoparticles decorated with an organoiridium complex. J Mater Chem B 2016; 4:3113-3120. [DOI: 10.1039/c5tb02555a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
We developed an upconverting nanoparticle capable of (up)converting near-infrared excitation light to UV to sensitize an organoiridium complex for the production of reactive oxygen species.
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Affiliation(s)
- Joe Gerald Jesu Raj
- Institut National de la Recherche Scientifique (INRS) - Énergie, Matériaux et Télécommunications (EMT)
- Université du Québec
- Varennes
- Canada
| | - Marta Quintanilla
- Institut National de la Recherche Scientifique (INRS) - Énergie, Matériaux et Télécommunications (EMT)
- Université du Québec
- Varennes
- Canada
| | - Fiorenzo Vetrone
- Institut National de la Recherche Scientifique (INRS) - Énergie, Matériaux et Télécommunications (EMT)
- Université du Québec
- Varennes
- Canada
- Centre for Self-Assembled Chemical Structures
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Narsireddy A, Vijayashree K, Adimoolam MG, Manorama SV, Rao NM. Photosensitizer and peptide-conjugated PAMAM dendrimer for targeted in vivo photodynamic therapy. Int J Nanomedicine 2015; 10:6865-78. [PMID: 26604753 PMCID: PMC4639554 DOI: 10.2147/ijn.s89474] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Challenges in photodynamic therapy (PDT) include development of efficient near infrared-sensitive photosensitizers (5,10,15,20-tetrakis(4-hydroxyphenyl)-21H,23H-porphine [PS]) and targeted delivery of PS to the tumor tissue. In this study, a dual functional dendrimer was synthesized for targeted PDT. For targeting, a poly(amidoamine) dendrimer (G4) was conjugated with a PS and a nitrilotriacetic acid (NTA) group. A peptide specific to human epidermal growth factor 2 was expressed in Escherichia coli with a His-tag and was specifically bound to the NTA group on the dendrimer. Reaction conditions were optimized to result in dendrimers with PS and the NTA at a fractional occupancy of 50% and 15%, respectively. The dendrimers were characterized by nuclear magnetic resonance, matrix-assisted laser desorption/ionization, absorbance, and fluorescence spectroscopy. Using PS fluorescence, cell uptake of these particles was confirmed by confocal microscopy and fluorescence-activated cell sorting. PS-dendrimers are more efficient than free PS in PDT-mediated cell death assays in HER2 positive cells, SK-OV-3. Similar effects were absent in HER2 negative cell line, MCF-7. Compared to free PS, the PS-dendrimers have shown significant tumor suppression in a xenograft animal tumor model. Conjugation of a PS with dendrimers and with a targeting agent has enhanced photodynamic therapeutic effects of the PS.
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Affiliation(s)
| | | | | | | | - Nalam M Rao
- CSIR - Centre for Cellular and Molecular Biology, Hyderabad, India
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31
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Guha S, Shaw SK, Spence GT, Roland FM, Smith BD. Clean Photothermal Heating and Controlled Release from Near-Infrared Dye Doped Nanoparticles without Oxygen Photosensitization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:7826-34. [PMID: 26149326 PMCID: PMC4634570 DOI: 10.1021/acs.langmuir.5b01878] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The photothermal heating and release properties of biocompatible organic nanoparticles, doped with a near-infrared croconaine (Croc) dye, were compared with analogous nanoparticles doped with the common near-infrared dyes ICG and IR780. Separate formulations of lipid-polymer hybrid nanoparticles and liposomes, each containing Croc dye, absorbed strongly at 808 nm and generated clean laser-induced heating (no production of (1)O2 and no photobleaching of the dye). In contrast, laser-induced heating of nanoparticles containing ICG or IR780 produced reactive (1)O2, leading to bleaching of the dye and also decomposition of coencapsulated payload such as the drug doxorubicin. Croc dye was especially useful as a photothermal agent for laser-controlled release of chemically sensitive payload from nanoparticles. Solution state experiments demonstrated repetitive fractional release of water-soluble fluorescent dye from the interior of thermosensitive liposomes. Additional experiments used a focused laser beam to control leakage from immobilized liposomes with very high spatial and temporal precision. The results indicate that fractional photothermal leakage from nanoparticles doped with Croc dye is a promising method for a range of controlled release applications.
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Jin H, Dai XH, Wu C, Pan JM, Wang XH, Yan YS, Liu DM, Sun L. Rational design of shear-thinning supramolecular hydrogels with porphyrin for controlled chemotherapeutics release and photodynamic therapy. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.01.047] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Narsireddy A, Vijayashree K, Irudayaraj J, Manorama SV, Rao NM. Targeted in vivo photodynamic therapy with epidermal growth factor receptor-specific peptide linked nanoparticles. Int J Pharm 2014; 471:421-9. [PMID: 24939618 DOI: 10.1016/j.ijpharm.2014.05.063] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 05/26/2014] [Accepted: 05/29/2014] [Indexed: 01/06/2023]
Abstract
In targeted photodynamic therapy (tPDT), photosensitizers (PS) are targeted to disease tissue to reduce the dosage of PS and in addition to reduce the photo damage to the non-target tissue. We synthesized iron oxide nanoparticles (NP) armored with tumor targeting peptide and PS for targeted PDT. Chitosan covered Fe3O4 NPs (30 nm) were deposited with gold NPs to generate two distinct chemical surfaces. To the gold particles PS was attached with a lipoic acid linker. Human epidermal growth factor receptor (hEGFR)-specific peptide was also attached to the same particles via a nickel-nitrilotriacetic acid linker attached to the chitosan. Using these nanoparticles, peptide specific uptake and PDT mediated cell death of the SK-OV-3 cells (Her2(+) positive cells) were demonstrated by confocal microscopy, T2 imaging and viability assays. Peptide mediated preferential distribution of these NPs into tumor tissue was also shown in a xenograft tumor model. After one intravenous injection and one PDT dose, peptide bound NPs retarded tumor growth significantly compared to dark controls or treatments with NPs without peptide. The tumor retardation by targeted NPs was achieved at a PS concentration of 3.9 nmol/animal, whereas similar effect was seen with free PS at 220 nmol/animal. Therapeutic potential of these peptide containing NPs would be a useful in targeted PDT and in imaging the target tissue.
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Affiliation(s)
- Amreddy Narsireddy
- CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
| | - Kurra Vijayashree
- CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad 500007, India
| | - Joseph Irudayaraj
- Agricultural & Biological Engineering, Purdue University, 225 S. University Street West Lafayette, IN 47907-2093, USA
| | - Sunkara V Manorama
- CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India.
| | - Nalam M Rao
- CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad 500007, India.
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34
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Marydasan B, Nair AK, Ramaiah D. Optimization of triplet excited state and singlet oxygen quantum yields of picolylamine-porphyrin conjugates through zinc insertion. J Phys Chem B 2013; 117:13515-22. [PMID: 24063545 DOI: 10.1021/jp407524w] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We synthesized a new class of picolylamine-porphyrin conjugates 1-3 and have investigated the effect of heavy atom insertion on their intersystem crossing efficiency through spin-orbit perturbations. By incorporating zinc ions in the core as well as periphery positions of the porphyrin ring, we have successfully optimized their triplet excited state quantum yields and their efficiency to generate singlet oxygen. Uniquely, the picolylamine-porphyrin conjugate 3 having five zinc ions exhibited a triplet excited state quantum yield of ca. 0.97 and a sensitized singlet oxygen generation yield of ca. 0.92. In contrast, the free base porphyrin derivative 1 exhibited ca. 0.64 and 0.5 of the triplet excited state and singlet oxygen quantum yields, respectively. Our results demonstrate that the insertion of zinc metal ions in the picolylamine-porphyrin conjugates not only quantitatively enhances the triplet excited state and singlet oxygen yields but also imparts hydrophilicity, thereby their potential use as sensitizers in photodynamic therapy and green photooxygenation reactions.
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Affiliation(s)
- Betsy Marydasan
- Photosciences and Photonics, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Trivandrum 695019, India
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Fischer BB, Hideg É, Krieger-Liszkay A. Production, detection, and signaling of singlet oxygen in photosynthetic organisms. Antioxid Redox Signal 2013; 18:2145-62. [PMID: 23320833 DOI: 10.1089/ars.2012.5124] [Citation(s) in RCA: 149] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
SIGNIFICANCE In photosynthetic organisms, excited chlorophylls (Chl) can stimulate the formation of singlet oxygen ((1)O(2)), a highly toxic molecule that acts in addition to its damaging nature as an important signaling molecule. Thus, due to this dual role of (1)O(2), its production and detoxification have to be strictly controlled. RECENT ADVANCES Regulation of pigment synthesis is essential to control (1)O(2) production, and several components of the Chl synthesis and pigment insertion machineries to assemble and disassemble protein/pigment complexes have recently been identified. Once produced, (1)O(2) activates a signaling cascade from the chloroplast to the nucleus that can involve multiple mechanisms and stimulate a specific gene expression response. Further, (1)O(2) signaling was shown to interact with signal cascades of other reactive oxygen species, oxidized carotenoids, and lipid hydroperoxide-derived reactive electrophile species. CRITICAL ISSUES Despite recent progresses, hardly anything is known about how and where the (1)O(2) signal is sensed and transmitted to the cytoplasm. One reason for that is the limitation of available detection methods challenging the reliable quantification and localization of (1)O(2) in plant cells. In addition, the process of Chl insertion into the reaction centers and antenna complexes is still unclear. FUTURE DIRECTIONS Unraveling the mechanisms controlling (1)O(2) production and signaling would help clarifying the specific role of (1)O(2) in cellular stress responses. It would further enable to investigate the interaction and sensitivity to other abiotic and biotic stress signals and thus allow to better understand why some stressors activate an acclimation, while others provoke a programmed cell death response.
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Affiliation(s)
- Beat B Fischer
- Department of Environmental Toxicology, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland.
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36
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Gaona-Gaona L, Molina-Jijón E, Tapia E, Zazueta C, Hernández-Pando R, Calderón-Oliver M, Zarco-Márquez G, Pinzón E, Pedraza-Chaverri J. Protective effect of sulforaphane pretreatment against cisplatin-induced liver and mitochondrial oxidant damage in rats. Toxicology 2011; 286:20-7. [PMID: 21575670 DOI: 10.1016/j.tox.2011.04.014] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2011] [Revised: 04/21/2011] [Accepted: 04/27/2011] [Indexed: 02/07/2023]
Abstract
In the present work was analyzed whether sulforaphane (SFN) may protect against cisplatin (CIS)-induced hepatic damage, oxidant stress and mitochondrial dysfunction. Four groups of male Wistar rats were studied: control, CIS, CIS+SFN and SFN. SFN was given i.p. (500 μg/kg/d × 3 days) before CIS administration (single i.p. injection, 10mg/kg). Rats were sacrificed 3 days after CIS injection to evaluate hepatic damage (histological analysis, liver/body weight ratio and serum activity of aspartate aminotransferase and alanine aminotransferase), oxidant stress (lipid peroxidation and protein carbonyl and glutathione content), antioxidant enzymes (catalase, glutathione reductase, glutathione peroxidase, glutathione-S-transferase and superoxide dismutase) in liver homogenates and isolated mitochondria and mitochondrial function (oxygen consumption using either malate/glutamate or succinate as substrates and the activity of mitochondrial complex I, II, II-III, IV and V). Furthermore it was evaluated if SFN is able to scavenge some reactive oxygen species in vitro. It was found that SFN prevents CIS-induced (a) hepatic damage, (b) oxidant stress and decreased activity of antioxidant enzymes in liver and mitochondria and (c) mitochondrial alterations in oxygen consumption and decreased activity of mitochondrial complex I. It was also found that the scavenging ability of SFN for peroxynitrite anion, superoxide anion, singlet oxygen, peroxyl radicals, hydrogen peroxide and hydroxyl radicals was very low or negligible. The hepatoprotective effect of SFN was associated to the preservation of mitochondrial function, antioxidant enzymes and prevention of liver and mitochondrial oxidant stress.
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37
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Higher hypochlorous acid scavenging activity of ethyl pyruvate compared to its sodium salt. Biosci Biotechnol Biochem 2011; 75:500-4. [PMID: 21389621 DOI: 10.1271/bbb.100728] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Although a number of studies have focused on the higher ethyl pyruvate antioxidative activity than its sodium salt under various stress conditions, and the greater protective properties of the ester form have been suggested as the effect of better cell membrane penetration, the molecular mechanism has remained unclear. The aim of the present study was therefore to compare the antioxidative activities of sodium and ethyl pyruvate under in vitro conditions by using a liver homogenate as the model for cell membrane transport deletion. The potential effect of ethanol was also evaluated, and hypochlorous acid was used as an oxidant. Our data indicate the concentration-dependent scavenging potency of both sodium and ethyl pyruvate, with the ester having higher activity. This effect was not related to the presence of ethanol. Better protection of the liver homogenate by ethyl pyruvate was also apparent, despite the fact that cell membrane transport was omitted.
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38
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Recent developments in the detection of singlet oxygen with molecular spectroscopic methods. Trends Analyt Chem 2011. [DOI: 10.1016/j.trac.2010.08.009] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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39
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Pedraza-Chaverrí J, Reyes-Fermín LM, Nolasco-Amaya EG, Orozco-Ibarra M, Medina-Campos ON, González-Cuahutencos O, Rivero-Cruz I, Mata R. ROS scavenging capacity and neuroprotective effect of α-mangostin against 3-nitropropionic acid in cerebellar granule neurons. ACTA ACUST UNITED AC 2009; 61:491-501. [DOI: 10.1016/j.etp.2008.11.002] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2008] [Revised: 10/25/2008] [Accepted: 11/12/2008] [Indexed: 12/16/2022]
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Costa D, Fernandes E, Santos JLM, Pinto DCGA, Silva AMS, Lima JLFC. New noncellular fluorescence microplate screening assay for scavenging activity against singlet oxygen. Anal Bioanal Chem 2007; 387:2071-81. [PMID: 17225996 DOI: 10.1007/s00216-006-0998-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2006] [Revised: 11/01/2006] [Accepted: 11/07/2006] [Indexed: 11/29/2022]
Abstract
In the present study, a new fluorescence microplate screening assay for evaluating scavenging activity against singlet oxygen (1O2) was implemented. The chemical generation of 1O2 was promoted using the thermodissociable endoperoxide of disodium 3,3'-(1,4-naphthalene)bispropionate (NDPO2). The detection of 1O2 was achieved using dihydrorhodamine 123 (DHR), a nonfluorescent molecule that is oxidizable to the fluorescent form rhodamine 123 (RH). The combined use of a 1O2-selective generator and a highly sensitive probe (DHR) was then successfully applied to perform a screening assay of the 1O2 scavenging activities of ascorbic acid, penicillamine, cysteine, N-acetylcysteine (NAC), methionine, reduced glutathione (GSH), dihydrolipoic acid, lipoic acid, and sodium azide. All of these antioxidants exhibited concentration-dependent 1O2 scavenging capacities. They could be ranked according to observed activity: ascorbic acid>cysteine>penicillamine>dihydrolipoic acid>GSH>NAC>sodium azide>lipoic acid (IC50 values of 3.0+/-0.2, 8.0+/-0.7, 10.9+/-0.8, 25.2+/-4.5, 57.4+/-5.9, 138+/-13, 1124+/-128, 2775+/-359 microM, mean+/-SEM, respectively)>methionine (35% of scavenging effect at 10 mM). In conclusion, the use of NDPO2 as a selective generator for 1O2 and its fluorescence detection by the highly sensitive probe DHR is shown to be a reliable and resourceful analytical alternative means to implement a microplate screening assay for scavenging activity against 1O2.
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Affiliation(s)
- David Costa
- REQUIMTE, Departamento de Química-Física, Faculdade de Farmácia, Universidade do Porto, Rua Aníbal Cunha, 164, 4099-030, Porto, Portugal
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41
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Gomes A, Fernandes E, Lima JLFC. Fluorescence probes used for detection of reactive oxygen species. ACTA ACUST UNITED AC 2005; 65:45-80. [PMID: 16297980 DOI: 10.1016/j.jbbm.2005.10.003] [Citation(s) in RCA: 1215] [Impact Index Per Article: 63.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2005] [Revised: 09/21/2005] [Accepted: 10/12/2005] [Indexed: 11/20/2022]
Abstract
Endogenously produced pro-oxidant reactive species are essential to life, being involved in several biological functions. However, when overproduced (e.g. due to exogenous stimulation), or when the levels of antioxidants become severely depleted, these reactive species become highly harmful, causing oxidative stress through the oxidation of biomolecules, leading to cellular damage that may become irreversible and cause cell death. The scientific research in the field of reactive oxygen species (ROS) associated biological functions and/or deleterious effects is continuously requiring new sensitive and specific tools in order to enable a deeper insight on its action mechanisms. However, reactive species present some characteristics that make them difficult to detect, namely their very short lifetime and the variety of antioxidants existing in vivo, capable of capturing these reactive species. It is, therefore, essential to develop methodologies capable of overcoming this type of obstacles. Fluorescent probes are excellent sensors of ROS due to their high sensitivity, simplicity in data collection, and high spatial resolution in microscopic imaging techniques. Hence, the main goal of the present paper is to review the fluorescence methodologies that have been used for detecting ROS in biological and non-biological media.
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Affiliation(s)
- Ana Gomes
- REQUIMTE, Departamento de Química-Física, Faculdade de Farmácia, Universidade do Porto, Rua Aníbal Cunha, 164, 4099-030 Porto, Portugal
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42
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Oosthuizen MM, Greyling D. Antioxidants suitable for use with chemiluminescence to identify oxyradical species. Redox Rep 2000; 4:277-90. [PMID: 10772067 DOI: 10.1179/135100099101535124] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
From a panel of 24 alleged antioxidants the most suitable antioxidants (AO) for use with chemiluminescence (CL) experiments were determined. Superoxide dismutase (SOD), using luminol as the chemiluminescence probe (Lum-CL), was inhibitory only towards O2*- and not HO* or (1)O2. SOD was thus a suitable antioxidant for O2*-, as was tiron. Tiron had advantages, however, since SOD acted as a pro-oxidant in the presence of H2O2 or H2O2/HO* generators. The two most suitable antioxidants for (1)O2 were diphenylisobenzofuran (DBF) and tryptophan, for both Lum and Lucigenin-CL (Luc-CL). Desferrioxamine, with both Lum and Luc-CL, was a very effective scavenger for HO*, but appeared to be an even more effective scavenger for (1)O2. Cysteamine showed the best discrimination between IC50s when the two (1)O2 generators NaOCl/H2O2 and NDPO2 were compared. Cysteamine was, therefore, the only scavenger that was appropriate for studies with hypochlorite. Melatonin, with Lum-CL, was found to be the most suitable scavenger for HO*. Mannitol, the classical AO for HO*, was not suitable when used with CL since it acted as a pro-oxidant. Some of the AOs revealed either calyx- or bell-shaped CL inhibition profiles and presumably, therefore, may act as both pro- or antioxidants at different concentrations. Antioxidants showing these kinds of dual activities should be used with caution in CL studies.
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Affiliation(s)
- M M Oosthuizen
- Department of Surgery, University of the Witwatersrand, Parktown, Johannesburg, South Africa.
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43
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Ohyashiki T, Nunomura M, Katoh T. Detection of superoxide anion radical in phospholipid liposomal membrane by fluorescence quenching method using 1,3-diphenylisobenzofuran. BIOCHIMICA ET BIOPHYSICA ACTA 1999; 1421:131-9. [PMID: 10561478 DOI: 10.1016/s0005-2736(99)00119-4] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Utilization of a fluorescence dye, 1,3-diphenylisobenzofuran (DPBF) as a detector of superoxide anion radical (O2*-) was examined. The fluorescence intensity of DPBF incorporated in phospholipid liposomes consisting of phosphatidylcholine (PC) and phosphatidylserine (PS) is effectively quenched by incubation with xanthine/xanthine oxidase system. On the other hand, xanthine or xanthine oxidase alone did not induce quenching of the DPBF fluorescence in the liposomes. Xanthine/xanthine oxidase-induced fluorescence quenching of DPBF-labeled liposomes was almost completely protected by the addition of superoxide dismutase (SOD, 1 U/ml), but not by heat-denatured SOD (10 min boiling) at the same concentration. On the other hand, catalase (1 U/ml), and hydroxyl radical and singlet oxygen scavengers (10 mM sodium benzoate, 300 mM mannitol, 1 mM tryptophan and 1 mM sodium azide) did not protect xanthine/xanthine oxidase-induced fluorescence quenching of DPBF-labeled liposomes. The concentration dependence profiles of xanthine oxidase on the DPBF fluorescence quenching and O2*- generation showed that there is a good correlation between these parameters. Under the present experimental conditions, approximately 7 microM H(2)O(2)/30 min were produced, but the addition of H(2)O(2) (1 mM) to DPBF-labeled liposomes did not quench the dye fluorescence in the liposomes. Temperature dependence profiles of the DPBF fluorescence quenching induced by xanthine/xanthine oxidase treatment and the excimer fluorescence formation of pyrene molecules embedded in the liposomal membrane suggested that the quenching efficiency of the DPBF fluorescence is largely dependent on their lipid dynamics. Based on these results, we proposed the possibility that DPBF fluorescence quenching method is able to be used as a simple method for detecting O2*- inside the membrane lipid layer and that DPBF fluorescence quenching by O2*- is controlled by the physical state of membrane lipids.
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Affiliation(s)
- T Ohyashiki
- Department of Clinical Chemistry, Faculty of Pharmaceutical Sciences, Hokuriku University, Kanagawa-machi, Kanazawa, Ishikawa, Japan.
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Friedrichsen W. Recent Advances in the Chemistry of Benzo[c]furans and Related Compounds. ADVANCES IN HETEROCYCLIC CHEMISTRY VOLUME 73 1999. [DOI: 10.1016/s0065-2725(08)60940-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Fukuzawa K, Matsuura K, Tokumura A, Suzuki A, Terao J. Kinetics and dynamics of singlet oxygen scavenging by alpha-tocopherol in phospholipid model membranes. Free Radic Biol Med 1997; 22:923-30. [PMID: 9119263 DOI: 10.1016/s0891-5849(96)00485-6] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Scavenging of singlet oxygen (1O2) by alpha-tocopherol (alpha-Toc) was investigated in liposomes. 1O2 was generated by photoirradiation in the presence of two photosensitizers, water-soluble methylene blue (MB) and lipid-soluble 12-(1-pyrene)dodecanoic acid (PDA). The rates of oxidation of alpha-Toc differed depending on the photosensitizing dye and the membrane charge: in the MB-system, alpha-Toc was oxidized fast in negatively charged dimyristoylphosphatidylcholine (DMPC) liposomes containing dicetylphosphate (DCP) and slowly in neutrally charged DMPC liposomes and positively charged DMPC liposomes containing stearylamine (SA), but in the PDA-system, the oxidation rate was independent of the membrane charge. The charge-dependent difference in the MB-system would be due to the site of 1O2 generation depending on the charge-dependent distribution of MB, because positively charged MB increased the zeta-potential of DCP-DMPC liposomes by its interaction with DCP at the membrane surface, but changed the zeta-potentials of DMPC and SA-DMPC liposomes less because of its location in the bulk water phase. The oxidation rate of alpha-Toc in liposomes was different from that in EtOH solution: in the MB system, the oxidation rate was faster in EtOH solution than in DMPC or SA-DMPC liposomes but the same as that in DCP-DMPC liposomes. However, in the PDA system, the oxidation rate was slower in EtOH solution than in DMPC liposomes with or without a charge. Membrane fluidity changed the rate of alpha-Toc oxidation in liposomes, the rate being higher in the liquid crystalline phase than the gel phase, as judged by the higher rate in DMPC liposomes than in dipalmitoylphosphatidylcholine (DPPC) liposomes at 30 degrees C. The rate constants of alpha-Toc for scavenging, the chemical reaction and physical quenching of 1O2 were determined in membranes using DCP-DMPC liposomes labeled with 1,3-diphenyl-isobenzofuran (DPBF), which traps 1O2. These constants differed in the two photosensitizing systems, being higher in the MB-system than in the PDA-system, and were lower than those in EtOH solution.
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Affiliation(s)
- K Fukuzawa
- Faculty of Pharmaceutical Sciences, Tokushima University, Japan
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Krieg M. Determination of singlet oxygen quantum yields with 1,3-diphenylisobenzofuran in model membrane systems. JOURNAL OF BIOCHEMICAL AND BIOPHYSICAL METHODS 1993; 27:143-9. [PMID: 8227944 DOI: 10.1016/0165-022x(93)90058-v] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The oxidation of 1,3-diphenylisobenzofuran by singlet oxygen was investigated in methanol and in two different types of liposomes. It was found that at high concentrations of scavenger 1,3-diphenylisobenzofuran, e.g., > 100 microM in methanol, the 1:1 oxidation stoichiometry is lost and more than one scavenger molecule per molecule of singlet oxygen is consumed. In model membrane systems, where local scavenger concentrations are high due to compartmentalization, correct singlet oxygen quantum yields with 1,3-diphenylisobenzofuran are only determined if the increased oxidation is taken into account.
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Affiliation(s)
- M Krieg
- Department of Pediatrics, MACC Fund Research Center, Medical College of Wisconsin, Milwaukee 53226
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Carloni P, Damiani E, Greci L, Stipa P, Tanfani F, Tartaglini E, Wozniak M. On the use of 1,3-diphenylisobenzofuran (DPBF). Reactions with carbon and oxygen centered radicals in model and natural systems. RESEARCH ON CHEMICAL INTERMEDIATES 1993. [DOI: 10.1163/156856793x00181] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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