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Kolman A, Pedzinski T, Lewandowska-Andralojc A. Spectroscopic insights into BSA-mediated deaggregation of m-THPC. Sci Rep 2024; 14:22343. [PMID: 39333618 PMCID: PMC11436661 DOI: 10.1038/s41598-024-73266-2] [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: 06/11/2024] [Accepted: 09/16/2024] [Indexed: 09/29/2024] Open
Abstract
Meta-tetra(hydroxyphenyl)chlorin (m-THPC) is among the most potent photosensitizers, known for its high singlet oxygen generation efficiency. However, its clinical effectiveness in photodynamic therapy (PDT) is compromised by its propensity to aggregate in aqueous solutions, adversely affecting its photophysical properties and therapeutic potential. A series of spectroscopic techniques, including UV-Vis absorption, fluorescence spectroscopy, and laser flash photolysis, revealed that m-THPC exhibits significant aggregation, particularly in MeOH-PBS mixtures with MeOH content below 30%. This aggregation adversely affects its photophysical properties leading to reduced fluorescence quantum yield and most importantly reducing its singlet oxygen quantum yield. This study introduces the use of bovine serum albumin (BSA) to counteract the aggregation of m-THPC, aiming to enhance its solubility, stability, and efficacy in physiological settings. Through advanced spectroscopic analyses we demonstrated that the m-THPC@BSA complex exhibits restored photophysical properties characteristic for monomeric form. Notably, the complex showed a significant restoration of the singlet oxygen quantum yield (ΦΔ = 0.21) compared to aggregated m-THPC. These results underscore the potential of BSA to preserve the monomeric form of m-THPC, mitigating aggregation-induced losses in singlet oxygen production. Our findings suggest that BSA-mediated delivery systems could play a crucial role in optimizing the clinical utility of hydrophobic photosensitizers like m-THPC.
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Affiliation(s)
- Aleksander Kolman
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, Poznan, 61-614, Poland
| | - Tomasz Pedzinski
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, Poznan, 61-614, Poland
| | - Anna Lewandowska-Andralojc
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, Poznan, 61-614, Poland.
- Center for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, Poznan, 61-614, Poland.
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2
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Bregnhøj M, Thorning F, Ogilby PR. Singlet Oxygen Photophysics: From Liquid Solvents to Mammalian Cells. Chem Rev 2024; 124:9949-10051. [PMID: 39106038 DOI: 10.1021/acs.chemrev.4c00105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
Molecular oxygen, O2, has long provided a cornerstone for studies in chemistry, physics, and biology. Although the triplet ground state, O2(X3Σg-), has garnered much attention, the lowest excited electronic state, O2(a1Δg), commonly called singlet oxygen, has attracted appreciable interest, principally because of its unique chemical reactivity in systems ranging from the Earth's atmosphere to biological cells. Because O2(a1Δg) can be produced and deactivated in processes that involve light, the photophysics of O2(a1Δg) are equally important. Moreover, pathways for O2(a1Δg) deactivation that regenerate O2(X3Σg-), which address fundamental principles unto themselves, kinetically compete with the chemical reactions of O2(a1Δg) and, thus, have practical significance. Due to technological advances (e.g., lasers, optical detectors, microscopes), data acquired in the past ∼20 years have increased our understanding of O2(a1Δg) photophysics appreciably and facilitated both spatial and temporal control over the behavior of O2(a1Δg). One goal of this Review is to summarize recent developments that have broad ramifications, focusing on systems in which oxygen forms a contact complex with an organic molecule M (e.g., a liquid solvent). An important concept is the role played by the M+•O2-• charge-transfer state in both the formation and deactivation of O2(a1Δg).
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Affiliation(s)
- Mikkel Bregnhøj
- Department of Chemistry, Aarhus University, 140 Langelandsgade, Aarhus 8000, Denmark
| | - Frederik Thorning
- Department of Chemistry, Aarhus University, 140 Langelandsgade, Aarhus 8000, Denmark
| | - Peter R Ogilby
- Department of Chemistry, Aarhus University, 140 Langelandsgade, Aarhus 8000, Denmark
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3
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Sasaki I, Brégier F, Chemin G, Daniel J, Couvez J, Chkair R, Vaultier M, Sol V, Blanchard-Desce M. Hydrophilic Biocompatible Fluorescent Organic Nanoparticles as Nanocarriers for Biosourced Photosensitizers for Photodynamic Therapy. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:216. [PMID: 38276734 PMCID: PMC10819872 DOI: 10.3390/nano14020216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024]
Abstract
Most photosensitizers of interest for photodynamic therapy-especially porphyrinoids and chlorins-are hydrophobic. To circumvent this difficulty, the use of nanocarriers is an attractive strategy. In this perspective, we have developed highly water-soluble and biocompatible fluorescent organic nanoparticles (FONPs) made from citric acid and diethyltriamine which are then activated by ethlynene diamine as nanoplatforms for efficient photosensitizers (PSs). Purpurin 18 (Pp18) was selected as a biosourced chlorin photosensitizer combining the efficient single oxygen generation ability and suitable absorption in the biological spectral window. The simple reaction of activated FONPs with Pp18, which contains a reactive anhydride ring, yielded nanoparticles containing both Pp18 and Cp6 derivatives. These functionalized nanoparticles combine solubility in water, high singlet oxygen generation quantum yield in aqueous media (0.72) and absorption both in the near UV region (FONPS) and in the visible region (Soret band approximately 420 nm as well as Q bands at 500 nm, 560 nm, 660 nm and 710 nm). The functionalized nanoparticles retain the blue fluorescence of FONPs when excited in the near UV region but also show deep-red or NIR fluorescence when excited in the visible absorption bands of the PSs (typically at 520 nm, 660 nm or 710 nm). Moreover, these nanoparticles behave as efficient photosensitizers inducing colorectal cancer cell (HCT116 and HT-29 cell lines) death upon illumination at 650 nm. Half maximal inhibitory concentration (IC50) values down to, respectively, 0.04 and 0.13 nmol/mL were observed showing the potential of FONPs[Cp6] for the PDT treatment of cancer. In conclusion, we have shown that these novel biocompatible nanoparticles, which can be elaborated from biosourced components, both show deep-red emission upon excitation in the red region and are able to produce singlet oxygen with high efficiency in aqueous environments. Moreover, they show high PDT efficiency on colorectal cancer cells upon excitation in the deep red region. As such, these functional organic nanoparticles hold promise both for PDT treatment and theranostics.
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Affiliation(s)
- Isabelle Sasaki
- Institut des Sciences Moléculaires (ISM, UMR5255), University of Bordeaux, Centre National de la Recherche Scientifique, Institut Polytechnique de Bordeaux, Bat A12, 351 Cours de la Libération, 33405 Talence, France (J.C.)
| | - Frédérique Brégier
- Laboratoire des Agroressources, Biomolécules et Chimie pour l’Innovation en Santé (LABCiS, UR22722), University of Limoges, 87000 Limoges, France; (F.B.); (G.C.)
| | - Guillaume Chemin
- Laboratoire des Agroressources, Biomolécules et Chimie pour l’Innovation en Santé (LABCiS, UR22722), University of Limoges, 87000 Limoges, France; (F.B.); (G.C.)
| | - Jonathan Daniel
- Institut des Sciences Moléculaires (ISM, UMR5255), University of Bordeaux, Centre National de la Recherche Scientifique, Institut Polytechnique de Bordeaux, Bat A12, 351 Cours de la Libération, 33405 Talence, France (J.C.)
| | - Justine Couvez
- Institut des Sciences Moléculaires (ISM, UMR5255), University of Bordeaux, Centre National de la Recherche Scientifique, Institut Polytechnique de Bordeaux, Bat A12, 351 Cours de la Libération, 33405 Talence, France (J.C.)
| | - Rayan Chkair
- Laboratoire des Agroressources, Biomolécules et Chimie pour l’Innovation en Santé (LABCiS, UR22722), University of Limoges, 87000 Limoges, France; (F.B.); (G.C.)
| | - Michel Vaultier
- Institut des Sciences Moléculaires (ISM, UMR5255), University of Bordeaux, Centre National de la Recherche Scientifique, Institut Polytechnique de Bordeaux, Bat A12, 351 Cours de la Libération, 33405 Talence, France (J.C.)
| | - Vincent Sol
- Laboratoire des Agroressources, Biomolécules et Chimie pour l’Innovation en Santé (LABCiS, UR22722), University of Limoges, 87000 Limoges, France; (F.B.); (G.C.)
| | - Mireille Blanchard-Desce
- Institut des Sciences Moléculaires (ISM, UMR5255), University of Bordeaux, Centre National de la Recherche Scientifique, Institut Polytechnique de Bordeaux, Bat A12, 351 Cours de la Libération, 33405 Talence, France (J.C.)
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4
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Mikhnovets IE, Holoubek J, Panina IS, Kotouček J, Gvozdev DA, Chumakov SP, Krasilnikov MS, Zhitlov MY, Gulyak EL, Chistov AA, Nikitin TD, Korshun VA, Efremov RG, Alferova VA, Růžek D, Eyer L, Ustinov AV. Alkyl Derivatives of Perylene Photosensitizing Antivirals: Towards Understanding the Influence of Lipophilicity. Int J Mol Sci 2023; 24:16483. [PMID: 38003673 PMCID: PMC10671050 DOI: 10.3390/ijms242216483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/09/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
Amphipathic perylene derivatives are broad-spectrum antivirals against enveloped viruses that act as fusion inhibitors in a light-dependent manner. The compounds target the lipid bilayer of the viral envelope using the lipophilic perylene moiety and photogenerating singlet oxygen, thereby causing damage to unsaturated lipids. Previous studies show that variation of the polar part of the molecule is important for antiviral activity. Here, we report modification of the lipophilic part of the molecule, perylene, by the introduction of 4-, 8-, and 12-carbon alkyls into position 9(10) of the perylene residue. Using Friedel-Crafts acylation and Wolff-Kishner reduction, three 3-acetyl-9(10)-alkylperylenes were synthesized from perylene and used to prepare 9 nucleoside and 12 non-nucleoside amphipathic derivatives. These compounds were characterized as fluorophores and singlet oxygen generators, as well as tested as antivirals against herpes virus-1 (HSV-1) and vesicular stomatitis virus (VSV), both known for causing superficial skin/mucosa lesions and thus serving as suitable candidates for photodynamic therapy. The results suggest that derivatives with a short alkyl chain (butyl) have strong antiviral activity, whereas the introduction of longer alkyl substituents (n = 8 and 12) to the perylenyethynyl scaffold results in a dramatic reduction of antiviral activity. This phenomenon is likely attributable to the increased lipophilicity of the compounds and their ability to form insoluble aggregates. Moreover, molecular dynamic studies revealed that alkylated perylene derivatives are predominately located closer to the middle of the bilayer compared to non-alkylated derivatives. The predicted probability of superficial positioning correlated with antiviral activity, suggesting that singlet oxygen generation is achieved in the subsurface layer of the membrane, where the perylene group is more accessible to dissolved oxygen.
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Affiliation(s)
- Igor E. Mikhnovets
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (I.E.M.); (I.S.P.); (S.P.C.); (M.S.K.); (M.Y.Z.); (E.L.G.); (A.A.C.); (T.D.N.); (V.A.K.); (R.G.E.); (V.A.A.)
| | - Jiří Holoubek
- Laboratory of Emerging Viral Diseases, Veterinary Research Institute, Hudcova 296/70, CZ-621 00 Brno, Czech Republic (D.R.); (L.E.)
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 1160/31, CZ-370 05 České Budějovice, Czech Republic
- Department of Experimental Biology, Faculty of Science, Masaryk University, CZ-625 00 Brno, Czech Republic
| | - Irina S. Panina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (I.E.M.); (I.S.P.); (S.P.C.); (M.S.K.); (M.Y.Z.); (E.L.G.); (A.A.C.); (T.D.N.); (V.A.K.); (R.G.E.); (V.A.A.)
| | - Jan Kotouček
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, CZ-621 00 Brno, Czech Republic;
| | - Daniil A. Gvozdev
- Department of Biology, Lomonosov Moscow State University, Leninskie Gory 1-12, 119234 Moscow, Russia;
| | - Stepan P. Chumakov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (I.E.M.); (I.S.P.); (S.P.C.); (M.S.K.); (M.Y.Z.); (E.L.G.); (A.A.C.); (T.D.N.); (V.A.K.); (R.G.E.); (V.A.A.)
| | - Maxim S. Krasilnikov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (I.E.M.); (I.S.P.); (S.P.C.); (M.S.K.); (M.Y.Z.); (E.L.G.); (A.A.C.); (T.D.N.); (V.A.K.); (R.G.E.); (V.A.A.)
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Mikhail Y. Zhitlov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (I.E.M.); (I.S.P.); (S.P.C.); (M.S.K.); (M.Y.Z.); (E.L.G.); (A.A.C.); (T.D.N.); (V.A.K.); (R.G.E.); (V.A.A.)
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Evgeny L. Gulyak
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (I.E.M.); (I.S.P.); (S.P.C.); (M.S.K.); (M.Y.Z.); (E.L.G.); (A.A.C.); (T.D.N.); (V.A.K.); (R.G.E.); (V.A.A.)
| | - Alexey A. Chistov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (I.E.M.); (I.S.P.); (S.P.C.); (M.S.K.); (M.Y.Z.); (E.L.G.); (A.A.C.); (T.D.N.); (V.A.K.); (R.G.E.); (V.A.A.)
| | - Timofei D. Nikitin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (I.E.M.); (I.S.P.); (S.P.C.); (M.S.K.); (M.Y.Z.); (E.L.G.); (A.A.C.); (T.D.N.); (V.A.K.); (R.G.E.); (V.A.A.)
| | - Vladimir A. Korshun
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (I.E.M.); (I.S.P.); (S.P.C.); (M.S.K.); (M.Y.Z.); (E.L.G.); (A.A.C.); (T.D.N.); (V.A.K.); (R.G.E.); (V.A.A.)
| | - Roman G. Efremov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (I.E.M.); (I.S.P.); (S.P.C.); (M.S.K.); (M.Y.Z.); (E.L.G.); (A.A.C.); (T.D.N.); (V.A.K.); (R.G.E.); (V.A.A.)
| | - Vera A. Alferova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (I.E.M.); (I.S.P.); (S.P.C.); (M.S.K.); (M.Y.Z.); (E.L.G.); (A.A.C.); (T.D.N.); (V.A.K.); (R.G.E.); (V.A.A.)
| | - Daniel Růžek
- Laboratory of Emerging Viral Diseases, Veterinary Research Institute, Hudcova 296/70, CZ-621 00 Brno, Czech Republic (D.R.); (L.E.)
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 1160/31, CZ-370 05 České Budějovice, Czech Republic
- Department of Experimental Biology, Faculty of Science, Masaryk University, CZ-625 00 Brno, Czech Republic
| | - Luděk Eyer
- Laboratory of Emerging Viral Diseases, Veterinary Research Institute, Hudcova 296/70, CZ-621 00 Brno, Czech Republic (D.R.); (L.E.)
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 1160/31, CZ-370 05 České Budějovice, Czech Republic
- Department of Experimental Biology, Faculty of Science, Masaryk University, CZ-625 00 Brno, Czech Republic
| | - Alexey V. Ustinov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (I.E.M.); (I.S.P.); (S.P.C.); (M.S.K.); (M.Y.Z.); (E.L.G.); (A.A.C.); (T.D.N.); (V.A.K.); (R.G.E.); (V.A.A.)
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Drozdowski A, Jurga N, Przybylska D, Brandmeier JC, Farka Z, Gorris HH, Grzyb T. Bright photon upconversion in LiYbF 4:Tm 3+@LiYF 4 nanoparticles and their application for singlet oxygen generation and in immunoassay for SARS-CoV-2 nucleoprotein. J Colloid Interface Sci 2023; 649:49-57. [PMID: 37336153 PMCID: PMC10257885 DOI: 10.1016/j.jcis.2023.06.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 06/21/2023]
Abstract
Photon upconversion is an intensively investigated phenomenon in the materials sciences due to its unique applications, mainly in biomedicine for disease prevention and treatment. This study reports the synthesis and properties of tetragonal LiYbF4:Tm3+@LiYF4 core@shell nanoparticles (NPs) and their applications. The NPs had sizes ranging from 18.5 to 23.7 nm. As a result of the energy transfer between Yb3+ and Tm3+ ions, the synthesized NPs show intense emission in the ultraviolet (UV) range up to 347 nm under 975 nm excitation. The bright emission in the UV range allows for singlet oxygen generation in the presence of hematoporphyrin on the surface of NPs. Our studies show that irradiation with a 975 nm laser of the functionalized NPs allows for the production of amounts of singlet oxygen easily detectable by Singlet Oxygen Sensor Green. The high emission intensity of NPs at 800 nm allowed the application of the synthesized NPs in an upconversion-linked immunosorbent assay (ULISA) for highly sensitive detection of the nucleoprotein from SARS-CoV-2, the causative agent of Covid-19. This article proves that LiYbF4:Tm3+@LiYF4 core@shell nanoparticles can be perfect alternatives for the most commonly studied upconverting NPs based on the NaYF4 host compound and are good candidates for biomedical applications.
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Affiliation(s)
- Adrian Drozdowski
- Department of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland
| | - Natalia Jurga
- Department of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland
| | - Dominika Przybylska
- Department of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland
| | - Julian C Brandmeier
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic; Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Regensburg 93053, Germany
| | - Zdeněk Farka
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic
| | - Hans H Gorris
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic
| | - Tomasz Grzyb
- Department of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland.
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Omeershffudin UNM, Kumar S. Emerging threat of antimicrobial resistance in Neisseria gonorrhoeae: pathogenesis, treatment challenges, and potential for vaccine development. Arch Microbiol 2023; 205:330. [PMID: 37688619 DOI: 10.1007/s00203-023-03663-0] [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: 07/11/2023] [Revised: 08/11/2023] [Accepted: 08/17/2023] [Indexed: 09/11/2023]
Abstract
The continuous rise of antimicrobial resistance (AMR) is a serious concern as it endangers the effectiveness of healthcare interventions that rely on antibiotics in the long run. The increasing resistance of Neisseria gonorrhoeae, the bacteria responsible for causing gonorrhea, to commonly used antimicrobial drugs, is a major concern. This has now become a critical global health crisis. In the coming years, there is a risk of a hidden epidemic caused by the emergence of gonococcal AMR. This will worsen the global situation. Infections caused by N. gonorrhoeae were once considered easily treatable. However, over time, they have become increasingly resistant to commonly used therapeutic medications, such as penicillin, ciprofloxacin, and azithromycin. As a result, this pathogen is developing into a true "superbug," which means that ceftriaxone is now the only available option for initial empirical treatment. Effective management strategies are urgently needed to prevent severe consequences, such as infertility and pelvic inflammatory disease, which can result from delayed intervention. This review provides a thorough analysis of the escalating problem of N. gonorrhoeae, including its pathogenesis, current treatment options, the emergence of drug-resistant mechanisms, and the potential for vaccine development. We aim to provide valuable insights for healthcare practitioners, policymakers, and researchers in their efforts to combat N. gonorrhoeae antibiotic resistance by elucidating the multifaceted aspects of this global challenge.
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Affiliation(s)
- Umairah Natasya Mohd Omeershffudin
- Post Graduate Centre, Management and Science University, University Drive, Off Persiaran Olahraga, Section 13, 40100, Selangor, Malaysia
| | - Suresh Kumar
- Faculty of Health and Life Sciences, Management and Science University, Seksyen 13, 40100, Shah Alam, Selangor, Malaysia.
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Damrongrungruang T, Panutyothin N, Kongjun S, Thanabat K, Ratha J. Combined bisdemethoxycurcumin and potassium iodide-mediated antimicrobial photodynamic therapy. Heliyon 2023; 9:e17490. [PMID: 37455953 PMCID: PMC10345248 DOI: 10.1016/j.heliyon.2023.e17490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 06/12/2023] [Accepted: 06/20/2023] [Indexed: 07/18/2023] Open
Abstract
Antimicrobial photodynamic therapy is emerging as a promising way to treat infections with minimal side effects. Typically, a single photosensitizer used in photodynamic therapy is capable of generating only one type of reactive oxygen species, which may have inadequate capability to eradicate certain types of microbes, especially Candida species. Thus, the use of combined photosensitizers is examined as a means of achieving superior antimicrobial results. We postulate that bisdemethoxycurcumin, a type I reactive oxygen species generator, combined with potassium iodide, an antimicrobial iodide molecule, might exhibit superior antimicrobial effects compared to a single photosensitizer-mediated photodynamic therapy. The effects of bisdemethoxycurcumin + potassium iodide + dental blue light on Candida albicans reduction were examined. Candida biofilms were treated with 20, 40 or 80 μM bisdemethoxycurcumin, 100 mM potassium iodide or a combination of these species for 20 min before irradiation with a dental blue light (90 J/cm2). The negative and positive controls were phosphate buffer saline and nystatin at 1 : 100,000 units/ml, respectively. Candidal numbers were quantified at 0, 1, 6 and 24 h. Hydroxyl radicals were spectrophotometrically measured using 2-[6-(4'amino phynoxyl-3H-xanthen-3-on-9-yl)] benzoic acid or APF probe-mediated fluorescence intensity (Varioskan) at 490/515 nm (excitation/emission). Candidal counts and hydroxyl radical comparisons were performed using the Kruskal-Wallis test and one-way ANOVA, respectively. Correlations between candidal numbers and hydroxyl radical levels were done with a Pearson correlation test. Forty μM bisdemethoxycurcumin+100 mM KI could provide a 3.5 log10 CFU/ml reduction after 6 h. Bisdemethoxycurcumin alone generated OH levels that were strongly correlated with candidal reduction. In conclusion, 40 μM bisdemethoxycurcumin+100 mM KI could reduce C. albicans biofilm.
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Affiliation(s)
- Teerasak Damrongrungruang
- Division of Oral Diagnosis, Department of Oral Biomedical Science, Faculty of Dentistry, Khon Kaen University, 40002, Thailand
- Melatonin Research Program, The Research and Academic Affairs, Khon Kaen University, 40002, Thailand
| | - Nichapat Panutyothin
- Division of Oral Diagnosis, Department of Oral Biomedical Science, Faculty of Dentistry, Khon Kaen University, 40002, Thailand
| | - Sirapakorn Kongjun
- Division of Oral Diagnosis, Department of Oral Biomedical Science, Faculty of Dentistry, Khon Kaen University, 40002, Thailand
| | - Kittapak Thanabat
- Division of Oral Diagnosis, Department of Oral Biomedical Science, Faculty of Dentistry, Khon Kaen University, 40002, Thailand
| | - Juthamat Ratha
- Melatonin Research Program, The Research and Academic Affairs, Khon Kaen University, 40002, Thailand
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8
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Insińska-Rak M, Golczak A, Gierszewski M, Anwar Z, Cherkas V, Kwiatek D, Sikorska E, Khmelinskii I, Burdziński G, Cibulka R, Mrówczyńska L, Kolanowski JL, Sikorski M. 5-Deazaalloxazine as photosensitizer of singlet oxygen and potential redox-sensitive agent. Photochem Photobiol Sci 2023:10.1007/s43630-023-00401-9. [PMID: 36934363 DOI: 10.1007/s43630-023-00401-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 02/28/2023] [Indexed: 03/20/2023]
Abstract
Flavins are a unique class of compounds that combine the features of singlet oxygen generators and redox-dependent fluorophores. From a broad family of flavin derivatives, deazaalloxazines are significantly underdeveloped from the point of view of photophysical properties. Herein, we report photophysics of 5-deazaalloxazine (1a) in water, acetonitrile, and some other solvents. In particular, triplet excited states of 1a in water and in acetonitrile were investigated using ultraviolet-visible (UV-Vis) transient absorption spectroscopy. The measured triplet lifetimes for 1a were all on the microsecond time scale (≈ 60 μs) in deoxygenated solutions. The quantum yield of S1 → T1 intersystem crossing for 1a in water was 0.43 based on T1 energy transfer from 1a to indicaxanthin (5) acting as acceptor and on comparative actinometric measurements using benzophenone (6). 1a was an efficient photosensitizer for singlet oxygen in aerated solutions, with quantum yields of singlet oxygen in methanol of about 0.76, compared to acetonitrile ~ 0.74, dichloromethane ~ 0.64 and 1,2-dichloroethane ~ 0.54. Significantly lower singlet oxygen quantum yields were obtained in water and deuterated water (ФΔ ~ 0.42 and 0.44, respectively). Human red blood cells (RBC) were used as a cell model to study the antioxidant capacity in vitro and cytotoxic activity of 1a. Fluorescence-lifetime imaging microscopy (FLIM) data were analyzed by fluorescence lifetime parameters and distribution for different parts of the emission spectrum. Comparison of multidimensional fluorescent properties of RBC under physiological-like and oxidative-stress conditions in the presence and absence of 1a suggests its dual activity as probe and singlet-oxygen generator and opens up a pathway for using FLIM to analyze complex intracellular behavior of flavin-like compounds. These new data on structure-property relationship contribute to the body of information required for a rational design of flavin-based tools for future biological and biochemical applications.
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Affiliation(s)
- Małgorzata Insińska-Rak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Anna Golczak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Mateusz Gierszewski
- Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614, Poznań, Poland
| | - Zubair Anwar
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Volodymyr Cherkas
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12-14, 61-704, Poznań, Poland
| | - Dorota Kwiatek
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12-14, 61-704, Poznań, Poland
| | - Ewa Sikorska
- Poznań University of Economics and Business, Al. Niepodległości 10, 61-875, Poznań, Poland
| | - Igor Khmelinskii
- Department of Chemistry and Pharmacy, Faculty of Sciences and Technology, and Centre for Electronics, Optoelectronics and Telecommunications, University of the Algarve, 8005-139, Faro, Portugal
| | - Gotard Burdziński
- Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614, Poznań, Poland
| | - Radek Cibulka
- Department of Organic Chemistry, University of Chemistry and Technology, Prague, Technicka 5, Prague 6, 16628, Prague, Czech Republic.
| | - Lucyna Mrówczyńska
- Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614, Poznań, Poland.
| | - Jacek Lukasz Kolanowski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12-14, 61-704, Poznań, Poland.
| | - Marek Sikorski
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland.
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9
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Ren R, Bremner DH, Chen W, Shi A, Wang T, Wang Y, Wang C, Wu J, Zhu LM. A multifunctional nanocomposite coated with a BSA membrane for cascaded nitric oxide therapy. Int J Biol Macromol 2023; 238:124087. [PMID: 36940766 DOI: 10.1016/j.ijbiomac.2023.124087] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 03/22/2023]
Abstract
Gas therapy based on nitric oxide (NO) has emerged as a potential therapeutic approach for cancer, and in conjunction with multi-mode combination therapy, offers new possibilities for achieving significant hyperadditive effects. In this study, an integrated AI-MPDA@BSA nanocomposite for diagnosis and treatment was constructed for PDA based photoacoustic imaging (PAI) and cascade NO release. Natural NO donor L-arginine (L-Arg) and photosensitizer (PS) IR780 were loaded into mesoporous polydopamine (MPDA). Bovine serum albumin (BSA) was conjugated to the MPDA to increase the dispersibility and biocompatibility of the nanoparticles, as well as to serve as a gatekeeper controlling IR780 release from the MPDA pores. The AI-MPDA@BSA produced singlet oxygen (1O2) and converted it into NO through a chain reaction based on L-Arg, enabling a combination of photodynamic therapy and gas therapy. Moreover, due to the photothermal properties of MPDA, the AI-MPDA@BSA performed good photothermal conversion, which allowed photoacoustic imaging. As expected, both in vitro and in vivo studies have confirmed that the AI-MPDA@BSA nanoplatform has a significant inhibitory effect on cancer cells and tumors, and no apparent systemic toxicity or side effects were detected during the treatment period.
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Affiliation(s)
- Rong Ren
- College of Biological Science and Medical Engineering, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China
| | - David H Bremner
- School of Science, Engineering and Technology, Abertay University, Kydd Building, Dundee DD1 1HG, Scotland, UK
| | - Wenling Chen
- School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Anhua Shi
- The Key Laboratory of Microcosmic Syndrome Differentiation, Education Department of Yunnan, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Tong Wang
- College of Biological Science and Medical Engineering, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China
| | - Ying Wang
- College of Biological Science and Medical Engineering, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China
| | - Chengji Wang
- Shanghai Laboratory Animal Research Center, Shanghai 201203, China
| | - Junzi Wu
- The Key Laboratory of Microcosmic Syndrome Differentiation, Education Department of Yunnan, Yunnan University of Chinese Medicine, Kunming 650500, China.
| | - Li-Min Zhu
- College of Biological Science and Medical Engineering, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China.
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10
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Recent advances on organelle specific Ru(II)/Ir(III)/Re(I) based complexes for photodynamic therapy. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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11
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Yang Y, Yin J, Tao F, Zhou Y, Zhang L, Zhong Y, Wang Y. Enhancing the quantum yield of singlet oxygen: photocatalytic degradation of mustard gas simulant 2-chloroethyl ethyl sulfide catalyzed by a hybrid of polyhydroxyl aluminum cations and porphyrin anions. RSC Adv 2022; 12:20251-20258. [PMID: 35919596 PMCID: PMC9277536 DOI: 10.1039/d2ra01821g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/30/2022] [Indexed: 11/27/2022] Open
Abstract
By combining the anionic salt meso-tetra(4-carboxyphenyl)porphyrin (TCPP4-) and the Keggin polyoxometalate cation cluster [Al13O4(OH)24(H2O)12]7+ via a simple ion-exchange method, a hybrid (C48H26N4O8)[Al13O4(OH)24(H2O)12]2(OH)10·18H2O (Al13-TCPP) was prepared and thoroughly characterized as a prototype of polyoxometalate-porphyrin hybrids for the photocatalytic degradation of the mustard gas simulant 2-chloroethyl ethyl sulfide (CEES). The experimental results showed that the catalytic degradation rate of CEES in the presence of Al13-TCPP reached 96.16 and 99.01% in 180 and 90 min in methanol and methanol-water solvent mixture (v/v = 1 : 1), respectively. The reaction followed first-order reaction kinetics, and the half-life and kinetic constant in methanol and solvent mixture were 39.8 min, -0.017 min-1 and 14.7 min, -0.047 min-1. Mechanism analysis indicated that under visible light irradiation in air, CEES was degraded through a combination of oxidation and alcoholysis/hydrolysis in methanol and the methanol-water solvent mixture. The superoxide radical (O2˙-) and singlet molecular oxygen (1O2) generated by Al13-TCPP selectively oxidized CEES into a non-toxic sulfoxide. The singlet oxygen capture experiments showed that Al13-TCPP (Φ = 0.236) had a higher quantum yield of singlet oxygen generation than H4TCPP (Φ = 0.135) under visible light irradiation in air. The material Al13-TCPP has good reusability, and the degradation rate of CEES can still reach 98.37% after being recycled five times.
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Affiliation(s)
- Ying Yang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology Beijing 100029 P. R. China
- Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology Beijing 100850 P. R. China
| | - Jianbo Yin
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Fangsheng Tao
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Yunshan Zhou
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Lijuan Zhang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Yuxu Zhong
- Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology Beijing 100850 P. R. China
| | - Yong'an Wang
- Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology Beijing 100850 P. R. China
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12
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Yang Y, Tao F, Zhang L, Zhou Y, Zhong Y, Tian S, Wang Y. Preparation of a porphyrin-polyoxometalate hybrid and its photocatalytic degradation performance for mustard gas simulant 2-chloroethyl ethyl sulfide. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.093] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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13
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Macchi S, Zubair M, Hill R, Alwan N, Khan Y, Ali N, Guisbiers G, Berry B, Siraj N. Improved Photophysical Properties of Ionic Material-Based Combination Chemo/PDT Nanomedicine. ACS APPLIED BIO MATERIALS 2021; 4:7708-7718. [PMID: 35006702 PMCID: PMC8900487 DOI: 10.1021/acsabm.1c00961] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, a cost-effective and prompt approach to develop ionic material-based combination nanodrugs for cancer therapy is presented. A chemotherapeutic (phosphonium) cation and photodynamic therapeutic (porphyrin) anion are combined using a single step ion exchange reaction. Afterward, a nanomedicine is prepared from this ionic materials-based combination drug using a simplistic strategy of reprecipitation. Improved photophysical characteristics such as a slower nonradiative rate constant, an enhanced phosphorescence emission, a longer lifetime, and a bathochromic shift in absorbance spectra of porphyrin are observed in the presence of a chemotherapeutic countercation. The photodynamic therapeutic activity of nanomedicines is investigated by measuring the singlet oxygen quantum yield using two probes. As compared to the parent porphyrin compound, the synthesized combination material showed a 2-fold increase in the reactive oxygen species quantum yield, due to inhibition of face-to-face aggregation of porphyrin units in the presence of bulky chemotherapeutic ions. The dark cytotoxicity of combination therapy nanomedicines in the MCF-7 (cancerous breast) cell line is also increased as compared to their corresponding parent compounds in vitro. This is due to the high cellular uptake of the combination nanomedicines as compared to that of the free drug. Further, selective toxicity toward cancer cells was acquired by functionalizing nanomedicine with folic acid followed by incubation with MCF-7 and MCF-10A (noncancerous breast). Light toxicity experiments indicate that the synthesized ionic nanomedicine shows a greater cell death than either parent drug due to the improved photophysical properties and effective combination effect. This facile and economical strategy can easily be utilized in the future to develop many other combination ionic nanomedicines with improved photodynamics.
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Affiliation(s)
- Samantha Macchi
- Department of Chemistry, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, United States
| | - Mohd Zubair
- Department of Biology, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, United States
| | - Robert Hill
- Department of Chemistry, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, United States
| | - Nabeel Alwan
- Department of Chemistry, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, United States
| | - Yusuf Khan
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, Texas 78712, United States
| | - Nawab Ali
- Department of Biology, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, United States
| | - Grégory Guisbiers
- Department of Physics and Astronomy, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, United States
| | - Brian Berry
- Department of Chemistry, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, United States
| | - Noureen Siraj
- Department of Chemistry, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204, United States
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14
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Maitra D, Pinsky BM, Soherawardy A, Zheng H, Banerjee R, Omary MB. Protein-aggregating ability of different protoporphyrin-IX nanostructures is dependent on their oxidation and protein-binding capacity. J Biol Chem 2021; 297:100778. [PMID: 34023387 PMCID: PMC8253973 DOI: 10.1016/j.jbc.2021.100778] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 05/08/2021] [Accepted: 05/12/2021] [Indexed: 02/08/2023] Open
Abstract
Porphyrias are rare blood disorders caused by genetic defects in the heme biosynthetic pathway and are associated with the accumulation of high levels of porphyrins that become cytotoxic. Porphyrins, due to their amphipathic nature, spontaneously associate into different nanostructures, but very little is known about the cytotoxic effects of these porphyrin nanostructures. Previously, we demonstrated the unique ability of fluorescent biological porphyrins, including protoporphyrin-IX (PP-IX), to cause organelle-selective protein aggregation, which we posited to be a major mechanism by which fluorescent porphyrins exerts their cytotoxic effect. Herein, we tested the hypothesis that PP-IX-mediated protein aggregation is modulated by different PP-IX nanostructures via a mechanism that depends on their oxidizing potential and protein-binding ability. UV–visible spectrophotometry showed pH-mediated reversible transformations of PP-IX nanostructures. Biochemical analysis showed that PP-IX nanostructure size modulated PP-IX-induced protein oxidation and protein aggregation. Furthermore, albumin, the most abundant serum protein, preferentially binds PP-IX dimers and enhances their oxidizing ability. PP-IX binding quenched albumin intrinsic fluorescence and oxidized His-91 residue to Asn/Asp, likely via a previously described photo-oxidation mechanism for other proteins. Extracellular albumin protected from intracellular porphyrinogenic stress and protein aggregation by acting as a PP-IX sponge. This work highlights the importance of PP-IX nanostructures in the context of porphyrias and offers insights into potential novel therapeutic approaches.
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Affiliation(s)
- Dhiman Maitra
- Center for Advanced Biotechnology and Medicine, Rutgers University, Piscataway, New Jersey, USA.
| | | | - Amenah Soherawardy
- Center for Advanced Biotechnology and Medicine, Rutgers University, Piscataway, New Jersey, USA
| | - Haiyan Zheng
- Center for Advanced Biotechnology and Medicine, Rutgers University, Piscataway, New Jersey, USA
| | - Ruma Banerjee
- University of Michigan Medical School, Ann Arbor, Michigan, USA; Department of Biological Chemistry, Ann Arbor, Michigan, USA
| | - M Bishr Omary
- Center for Advanced Biotechnology and Medicine, Rutgers University, Piscataway, New Jersey, USA; University of Michigan Medical School, Ann Arbor, Michigan, USA
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15
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Martínez SR, Palacios YB, Heredia DA, Aiassa V, Bartolilla A, Durantini AM. Self-Sterilizing 3D-Printed Polylactic Acid Surfaces Coated with a BODIPY Photosensitizer. ACS APPLIED MATERIALS & INTERFACES 2021; 13:11597-11608. [PMID: 33651583 DOI: 10.1021/acsami.0c21723] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Herein, we report the use of polylactic acid coated with a halogenated BODIPY photosensitizer (PS) as a novel self-sterilizing, low-cost, and eco-friendly material activated with visible light. In this article, polymeric surfaces were 3D-printed and treated with the PS using three simple methodologies: spin coating, aerosolization, and brush dispersion. Our studies showed that the polymeric matrix remains unaffected upon addition of the PS, as observed by dynamic mechanical analysis, Fourier transform infrared, scanning electron microscopy (SEM), and fluorescence microscopy. Furthermore, the photophysical and photodynamic properties of the dye remained intact after being adsorbed on the polymer. This photoactive material can be reused and was successfully inactivating methicillin-resistant Staphylococcus aureus and Escherichia coli in planktonic media for at least three inactivation cycles after short-time light exposure. A real-time experiment using a fluorescence microscope showed how bacteria anchored to the antimicrobial surface were inactivated within 30 min using visible light and low energy. Moreover, the material effectively eradicated these two bacterial strains on the first stage of biofilm formation, as elucidated by SEM. Unlike other antimicrobial approaches that implement a dissolved PS or non-sustainable materials, we offer an accessible green and economic alternative to acquire self-sterilizing surfaces with any desired shape.
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Affiliation(s)
- Sol R Martínez
- IITEMA-CONICET, Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta Nac. 36 Km 601, X5804BYA Río Cuarto, Córdoba, Argentina
| | - Yohana B Palacios
- IDAS-CONICET, Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta Nac. 36 Km 601, X5804BYA Río Cuarto, Córdoba, Argentina
| | - Daniel A Heredia
- IDAS-CONICET, Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta Nac. 36 Km 601, X5804BYA Río Cuarto, Córdoba, Argentina
| | - Virginia Aiassa
- UNITEFA-CONICET, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, X5000HUA Córdoba, Argentina
| | - Antonela Bartolilla
- UNITEFA-CONICET, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, X5000HUA Córdoba, Argentina
| | - Andrés M Durantini
- IDAS-CONICET, Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta Nac. 36 Km 601, X5804BYA Río Cuarto, Córdoba, Argentina
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16
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Jibin K, Prasad JS, Saranya G, Shenoy SJ, Maiti KK, Jayasree RS. Optically controlled hybrid metamaterial of plasmonic spiky gold inbuilt graphene sheets for bimodal imaging guided multimodal therapy. Biomater Sci 2020; 8:3381-3391. [PMID: 32377650 DOI: 10.1039/d0bm00312c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of multifunctional molecular diagnostic platforms for the concordant visualization and treatment of diseases with high sensitivity and resolution has recently become a crucial strategy in cancer management. Thus, engineering functional metamaterials with high therapeutic and imaging capabilities to elucidate diseases from their morphological behaviors to physiological mechanisms is an unmet need in the current scenario. Here, we report the design of a unique hybrid plasmonic nanoarchitecture for targeted multiple phototherapies of breast cancer by simultaneous real-time monitoring through fluorescence and surface-enhanced Raman scattering (SERS) techniques. The nanoframework consisted of plasmonic gold-graphene hybrids tethered with folic acid-ligated chitosan-modified photosensitizer (PpIX) to afford target-specific localized photothermal and photodynamic therapy. The hybrid vehicle also served as an excellent nanocarrier for the efficient loading and stimuli-responsive release of the chemotherapeutic drug doxorubicin (DOX) to enhance the therapeutic efficacy, thereby forming a trimodal nanomedicine against cancer. The cytotoxic effects induced by the cumulative action of the triplet therapeutic tools were visualized through both fluorescence and SERS imaging channels. Moreover, it also generated synchronized therapeutic effects resulting in the effective regression of tumor volume without propagating any toxic effects to other organs of the animals. Taken together, by virtue of strong light-matter interactions, the nanoprobe showed enhanced photoadsorption, which facilitated amplified light-reactive therapeutic and imaging efficacies along with targeted and enhanced chemotherapy, both in vitro and in vivo, which may offer promising outcomes in clinical research.
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Affiliation(s)
- Kunnumpurathu Jibin
- Division of Biophotonics and Imaging, Department of Biomaterial Sciences and Technology, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST), Thiruvananthapuram 695 019, India
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17
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Feng Y, Chen H, Wu Y, Que I, Tamburini F, Baldazzi F, Chang Y, Zhang H. Optical imaging and pH-awakening therapy of deep tissue cancer based on specific upconversion nanophotosensitizers. Biomaterials 2020; 230:119637. [DOI: 10.1016/j.biomaterials.2019.119637] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/05/2019] [Accepted: 11/18/2019] [Indexed: 01/07/2023]
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18
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Babu B, Soy RC, Mack J, Nyokong T. Non-aggregated lipophilic water-soluble tin porphyrins as photosensitizers for photodynamic therapy and photodynamic antimicrobial chemotherapy. NEW J CHEM 2020. [DOI: 10.1039/d0nj01564d] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Readily-synthesized water-soluble Sn(iv) tetrapyridylporphyrin dyes have been prepared which exhibit enhanced properties for use as photosensitizer dyes in biomedical applications.
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Affiliation(s)
- Balaji Babu
- Institute for Nanotechnology Innovation
- Department of Chemistry
- Rhodes University
- Makhanda 6140
- South Africa
| | - Rodah C. Soy
- Institute for Nanotechnology Innovation
- Department of Chemistry
- Rhodes University
- Makhanda 6140
- South Africa
| | - John Mack
- Institute for Nanotechnology Innovation
- Department of Chemistry
- Rhodes University
- Makhanda 6140
- South Africa
| | - Tebello Nyokong
- Institute for Nanotechnology Innovation
- Department of Chemistry
- Rhodes University
- Makhanda 6140
- South Africa
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19
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Liu S, Hu Y, Hu C, Xiong Y, Duan M. Quantum yields of singlet oxygen of tetrakis (4-carboxyphenyl) porphyrin in different solvents. J PORPHYR PHTHALOCYA 2019. [DOI: 10.1142/s1088424619501207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The singlet oxygen quantum yields of photosensitizers in different solvents are very important for photodynamic therapy (PDT). Here, we investigated the singlet oxygen quantum yields of tetrakis (4-carboxyphenyl) porphyrin (TCPP) in various solvents by the iodide method. Results indicate that TCPP has different singlet oxygen formation efficiency in different solvents. When compared to TCPP dissolved in water, TCPP showed higher singlet oxygen yields in methanol and ethanol, but lower singlet oxygen yields in DMF under identical conditions. In particular, TCPP rapidly precipitated in acetone after potassium iodide added in the solution. The salting out effect of TCPP by potassium iodide in acetone was confirmed by re-dissolving the precipitation in water and the characteristic absorption of TCPP was measured. The phenomenon of salting out for TCPP in acetone suggests that acetone is not a good solvent for singlet oxygen generation when evaluated by the iodide method.
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Affiliation(s)
- Shuai Liu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, P. R. China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, Sichuan 610500, P. R. China
| | - Yue Hu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, P. R. China
| | - Cun Hu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, P. R. China
| | - Yan Xiong
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, P. R. China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, Sichuan 610500, P. R. China
| | - Ming Duan
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, P. R. China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, Sichuan 610500, P. R. China
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20
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Wang Y, Ferrer-Espada R, Baglo Y, Goh XS, Held KD, Grad YH, Gu Y, Gelfand JA, Dai T. Photoinactivation of Neisseria gonorrhoeae: A Paradigm-Changing Approach for Combating Antibiotic-Resistant Gonococcal Infection. J Infect Dis 2019; 220:873-881. [PMID: 30629196 PMCID: PMC6667797 DOI: 10.1093/infdis/jiz018] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 01/08/2019] [Indexed: 01/22/2023] Open
Abstract
Antimicrobial resistance in Neisseria gonorrhoeae is a major issue of public health, and there is a critical need for the development of new antigonococcal strategies. In this study, we investigated the effectiveness of antimicrobial blue light (aBL; wavelength, 405 nm), an innovative nonpharmacological approach, for the inactivation of N. gonorrhoeae. Our findings indicated that aBL preferentially inactivated N. gonorrhoeae, including antibiotic-resistant strains, over human vaginal epithelial cells in vitro. Furthermore, no aBL-induced genotoxicity to the vaginal epithelial cells was observed at the radiant exposure used to inactivate N. gonorrhoeae. aBL also effectively inactivated N. gonorrhoeae that had attached to and invaded into the vaginal epithelial cells in their cocultures. No gonococcal resistance to aBL developed after 15 successive cycles of inactivation induced by subtherapeutic exposure to aBL. Endogenous aBL-activatable photosensitizing porphyrins in N. gonorrhoeae were identified and quantified using ultraperformance liquid chromatography, with coproporphyrin being the most abundant species in all N. gonorrhoeae strains studied. Singlet oxygen was involved in aBL inactivation of N. gonorrhoeae. Together, these findings show that aBL represents a potential potent treatment for antibiotic-resistant gonococcal infection.
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Affiliation(s)
- Ying Wang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
- Department of Laser Medicine, Chinese PLA General Hospital, Beijing
| | - Raquel Ferrer-Espada
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Yan Baglo
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Xueping S Goh
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Kathryn D Held
- Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Yonatan H Grad
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Ying Gu
- Department of Laser Medicine, Chinese PLA General Hospital, Beijing
| | - Jeffrey A Gelfand
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Tianhong Dai
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
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21
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Kim HS, Cha EJ, Kang HJ, Park JH, Lee J, Park HD. Antibacterial application of covalently immobilized photosensitizers on a surface. ENVIRONMENTAL RESEARCH 2019; 172:34-42. [PMID: 30769187 DOI: 10.1016/j.envres.2019.01.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 11/30/2018] [Accepted: 01/02/2019] [Indexed: 06/09/2023]
Abstract
Singlet oxygen produced by irradiating photosensitizers (PSs) can be used to kill pathogens during water treatment. Chemical immobilization of the PSs on surfaces can maintain their disinfection function long-term. In this study, two model PSs (rose bengal (RB) and hematoporphyrin (HP)) were immobilized on a glass surface using a silane coupling agent with an epoxide group, and their antibacterial properties were analyzed. Fourier transform infrared spectroscopy demonstrated that a covalent bond formed between the epoxide group and hydroxyl group in the PSs. A large proportion of the immobilized PSs (approximately 50%) was active in singlet oxygen production, which was evidenced by a comparative analysis with free PSs. RB was more effective at producing singlet oxygen than HP. The immobilized PSs were durable in terms of repeated use. On the other hand, singlet oxygen produced by the PSs was effective at killing bacteria, mostly for Gram-positive bacteria (> 90% death for 2 h of irradiation), by damaging the cell membrane. The preferable antibacterial property against Gram-positive bacteria compared with that against Gram-negative bacteria suggested efficient penetrability of singlet oxygen across the cell membrane, which led to cell death. Taken together, it was concluded that immobilization of PSs on surfaces using the silane coupling agent proposed in this study was effective at killing Gram-positive bacteria by forming singlet oxygen.
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Affiliation(s)
- Han-Shin Kim
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea
| | - Eun Ji Cha
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea
| | - Hyun-Jin Kang
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea
| | - Jeong-Hoon Park
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea
| | - Jaesang Lee
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea
| | - Hee-Deung Park
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea; KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, South Korea.
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22
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Rohrabaugh TN, Collins KA, Xue C, White JK, Kodanko JJ, Turro C. New Ru(ii) complex for dual photochemotherapy: release of cathepsin K inhibitor and 1O 2 production. Dalton Trans 2018; 47:11851-11858. [PMID: 29741184 DOI: 10.1039/c8dt00876k] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new complex, [Ru(tpy)(dppn)(Cbz-Leu-NHCH2CN)]2+ (1, tpy = 2,2':6',2''-terpyridine, dppn = benzo[i]dipyrido[3,2-a:2',3'-c]phenazine) was synthesized and its photochemical properties were investigated. This complex undergoes photorelease of the Cbz-Leu-NHCH2CN ligand, a known cathepsin K inhibitor, with a quantum yield, Φ450, of 0.0012(4) in water (λirr = 450 nm). In addition, 1 sensitizes the production of singlet oxygen upon visible light irradiation with quantum yield, ΦΔ, of 0.64(3) in CH3OH. The photophysical properties of 1 were compared with those of [Ru(tpy)(bpy)(Cbz-Leu-NHCH2CN)]2+ (2, bpy = 2,2'-bipyridine), [Ru(tpy)(dppn)(CH3CN)]2+ (3), and [Ru(tpy)(bpy)(CH3CN)]2+ (4) to evaluate the effect of the release of the Cbz-Leu-NHCH2CN inhibitor relative to the CH3CN ligand, as well as the role of dppn as the bidentate ligand for 1O2 production instead of bpy. Nanosecond transient absorption spectroscopy confirms the formation of the long-lived dppn-centered 3ππ* state in 1 and 3 with a maximum at ∼540 nm and τ ∼20 μs in deaerated acetonitrile. Complexes 1 and 3 are able to cause photoinduced damage to DNA (λirr ≥ 395 nm), whereas 2 and 4 do not photocleave DNA under similar experimental conditions. These results suggest that 1 is a promising agent for dual activity, both releasing a drug and producing singlet oxygen, and is poised to exhibit enhanced biological activity in phototochemotherapy upon irradiation with visible light.
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Affiliation(s)
- Thomas N Rohrabaugh
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA.
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23
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Rohrabaugh TN, Rohrabaugh AM, Kodanko JJ, White JK, Turro C. Photoactivation of imatinib-antibody conjugate using low-energy visible light from Ru(ii)-polypyridyl cages. Chem Commun (Camb) 2018; 54:5193-5196. [PMID: 29707728 DOI: 10.1039/c8cc01348a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Ru(ii)-polypyridyl cages with sterically bulky bidentate ligands provide efficient photochemical release of the anticancer drug imatinib using low energy visible light, imparting spatiotemporal control over drug bioavailability. The light-activated drug release is maintained when the Ru(ii) cage is covalently coupled to an antibody, which is expected to localize selectively on the tumor.
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Affiliation(s)
- Thomas N Rohrabaugh
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA.
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24
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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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25
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Kato H, Komagoe K, Inoue T, Masuda K, Katsu T. Structure–activity relationship of porphyrin-induced photoinactivation with membrane function in bacteria and erythrocytes. Photochem Photobiol Sci 2018; 17:954-963. [DOI: 10.1039/c8pp00092a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We analyzed the structure–activity relationship of natural porphyrins and the related analogs with the photoinactivation of membrane function in bacteria and erythrocytes.
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Affiliation(s)
| | - Keiko Komagoe
- Faculty of Pharmaceutical Sciences
- Okayama University
- Okayama 700-8530
- Japan
| | - Tsuyoshi Inoue
- Graduate School of Medicine
- Dentistry and Pharmaceutical Sciences
- Okayama University
- Okayama 700-8530
- Japan
| | - Kazufumi Masuda
- Graduate School of Clinical Pharmacy
- Shujitsu University
- Japan
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26
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Wennink JW, Liu Y, Mäkinen PI, Setaro F, de la Escosura A, Bourajjaj M, Lappalainen JP, Holappa LP, van den Dikkenberg JB, al Fartousi M, Trohopoulos PN, Ylä-Herttuala S, Torres T, Hennink WE, van Nostrum CF. Macrophage selective photodynamic therapy by meta-tetra(hydroxyphenyl)chlorin loaded polymeric micelles: A possible treatment for cardiovascular diseases. Eur J Pharm Sci 2017; 107:112-125. [DOI: 10.1016/j.ejps.2017.06.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 06/01/2017] [Accepted: 06/30/2017] [Indexed: 02/08/2023]
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27
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Day RA, Estabrook DA, Logan JK, Sletten EM. Fluorous photosensitizers enhance photodynamic therapy with perfluorocarbon nanoemulsions. Chem Commun (Camb) 2017; 53:13043-13046. [DOI: 10.1039/c7cc07038a] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Photodynamic therapy (PDT) requires a photosensitizer, light and oxygen to induce cell death. Here, we simultaneously deliver oxygen and photosensitizer using perfluorocarbon nanoemulsions.
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Affiliation(s)
- Rachael A. Day
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- 607 Charles E. Young Dr. E
- Los Angeles
| | - Daniel A. Estabrook
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- 607 Charles E. Young Dr. E
- Los Angeles
| | - Jessica K. Logan
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- 607 Charles E. Young Dr. E
- Los Angeles
| | - Ellen M. Sletten
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- 607 Charles E. Young Dr. E
- Los Angeles
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28
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Reichardt C, Sainuddin T, Wächtler M, Monro S, Kupfer S, Guthmuller J, Gräfe S, McFarland S, Dietzek B. Influence of Protonation State on the Excited State Dynamics of a Photobiologically Active Ru(II) Dyad. J Phys Chem A 2016; 120:6379-88. [PMID: 27459188 DOI: 10.1021/acs.jpca.6b05957] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The influence of ligand protonation on the photophysics of a ruthenium (Ru) dyad bearing the 2-(1-pyrenyl)-1H-imidazo[4,5-f][1,10]-phenanthroline (ippy) ligand was investigated by time-resolved transient absorption spectroscopy. It was found that changes in the protonation state of the imidazole group led to changes in the electronic configuration of the lowest lying excited state. Formation of the fully deprotonated imidazole anion resulted in excited state signatures that were consistent with a low-lying intraligand (IL) triplet state. This assignment was supported by time-dependent density functional theory (TDDFT) calculations. IL triplet states have been suggested to be potent mediators of photodynamic effects. Thus, these results are of interest in the design of Ru metal complexes as photosensitizers (PSs) for photodynamic therapy (PDT).
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Affiliation(s)
- Christian Reichardt
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University Jena , Helmholtzweg 4, 07743 Jena, Germany.,Leibniz Institute of Photonic Technology (IPHT) , Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Tariq Sainuddin
- Department of Chemistry, Acadia University , Wolfville NS B4P 2R6, Canada
| | - Maria Wächtler
- Leibniz Institute of Photonic Technology (IPHT) , Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Susan Monro
- Department of Chemistry, Acadia University , Wolfville NS B4P 2R6, Canada
| | - Stephan Kupfer
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University Jena , Helmholtzweg 4, 07743 Jena, Germany
| | - Julien Guthmuller
- Gdansk University of Technology , Narutowicza 11/12, 80-233 Gdansk, Poland
| | - Stefanie Gräfe
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University Jena , Helmholtzweg 4, 07743 Jena, Germany
| | - Sherri McFarland
- Department of Chemistry, Acadia University , Wolfville NS B4P 2R6, Canada.,Department of Chemistry & Biochemistry, University of North Carolina at Greensboro , Greensboro, North Carolina 27402, United States
| | - Benjamin Dietzek
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University Jena , Helmholtzweg 4, 07743 Jena, Germany.,Leibniz Institute of Photonic Technology (IPHT) , Albert-Einstein-Straße 9, 07745 Jena, Germany
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29
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Han J, Xia H, Wu Y, Kong SN, Deivasigamani A, Xu R, Hui KM, Kang Y. Single-layer MoS2 nanosheet grafted upconversion nanoparticles for near-infrared fluorescence imaging-guided deep tissue cancer phototherapy. NANOSCALE 2016; 8:7861-7865. [PMID: 27035265 DOI: 10.1039/c6nr00150e] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A multifunctional nanostructure is prepared by covalently grafting upconversion nanoparticles (UCNPs) with chitosan functionalized MoS2 (MoS2-CS) and folic acid (FA) and then loading phthalocyanine (ZnPc) on the surface of MoS2, which integrates photodynamic therapy (PDT) with photothermal therapy (PTT) and upconversion luminescence imaging into one system for enhanced antitumor efficiency.
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Affiliation(s)
- Jianyu Han
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore.
| | - Hongping Xia
- Division of Cellular and Molecular Research, National Cancer Centre, 11 Hospital Drive, Singapore 169610, Duke-NUS Medical School, Singapore.
| | - Yafeng Wu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore.
| | - Shik Nie Kong
- Division of Cellular and Molecular Research, National Cancer Centre, 11 Hospital Drive, Singapore 169610, Duke-NUS Medical School, Singapore.
| | - Amudha Deivasigamani
- Division of Cellular and Molecular Research, National Cancer Centre, 11 Hospital Drive, Singapore 169610, Duke-NUS Medical School, Singapore.
| | - Rong Xu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore.
| | - Kam M Hui
- Division of Cellular and Molecular Research, National Cancer Centre, 11 Hospital Drive, Singapore 169610, Duke-NUS Medical School, Singapore.
| | - Yuejun Kang
- Faculty of Materials and Energy, Institute for Clean Energy and Advanced Materials, Southwest University, 2 Tiansheng Road, Beibei, Chongqing, 400715, China.
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30
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Zhang X, Ai F, Sun T, Wang F, Zhu G. Multimodal Upconversion Nanoplatform with a Mitochondria-Targeted Property for Improved Photodynamic Therapy of Cancer Cells. Inorg Chem 2016; 55:3872-80. [DOI: 10.1021/acs.inorgchem.6b00020] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xiaoman Zhang
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, P. R. China
| | - Fujin Ai
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, P. R. China
| | | | - Feng Wang
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, P. R. China
| | - Guangyu Zhu
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, P. R. China
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31
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Hayashida Y, Ikeda Y, Sawada K, Kawai K, Kato T, Kakehi Y, Araki N. Invention of a novel photodynamic therapy for tumors using a photosensitizing PI3K inhibitor. Int J Cancer 2016; 139:700-11. [PMID: 26989815 DOI: 10.1002/ijc.30097] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 03/07/2016] [Accepted: 03/09/2016] [Indexed: 01/23/2023]
Abstract
XL147 (SAR245408, pilaralisib), an ATP-competitive pan-class I phosphoinositide 3-kinase (PI3K) inhibitor, is a promising new anticancer drug. We examined the effect of the PI3K inhibitor on PC3 prostate cancer cells under a fluorescence microscope and found that XL147-treated cancer cells are rapidly injured by blue wavelength (430 nm) light irradiation. During the irradiation, the cancer cells treated with 0.2-2 μM XL147 showed cell surface blebbing and cytoplasmic vacuolation and died within 15 min. The extent of cell injury/death was dependent on the dose of XL147 and the light power of the irradiation. These findings suggest that XL147 might act as a photosensitizing reagent in photodynamic therapy (PDT) for cancer. Moreover, the cytotoxic effect of photosensitized XL147 was reduced by pretreatment with other ATP-competitive PI3K inhibitors such as LY294002, suggesting that the cytotoxic effect of photosensitized XL147 is facilitated by binding to PI3K in cells. In a single-cell illumination analysis using a fluorescent probe to identify reactive oxygen species (ROS), significantly increased ROS production was observed in the XL147-treated cells when the cell was illuminated with blue light. Taken together, it is conceivable that XL147, which is preferentially accumulated in cancer cells, could be photosensitized by blue light to produce ROS to kill cancer cells. This study will open up new possibilities for PDT using anticancer drugs.
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Affiliation(s)
- Yushi Hayashida
- Department of Urology, School of Medicine, Kagawa University, Miki, Kagawa, Japan
| | - Yuka Ikeda
- Department of Histology and Cell Biology, School of Medicine, Kagawa University, Miki, Kagawa, Japan
| | - Koichi Sawada
- Department of Histology and Cell Biology, School of Medicine, Kagawa University, Miki, Kagawa, Japan
| | - Katsuhisa Kawai
- Department of Histology and Cell Biology, School of Medicine, Kagawa University, Miki, Kagawa, Japan
| | - Takuma Kato
- Department of Urology, School of Medicine, Kagawa University, Miki, Kagawa, Japan
| | - Yoshiyuki Kakehi
- Department of Urology, School of Medicine, Kagawa University, Miki, Kagawa, Japan
| | - Nobukazu Araki
- Department of Histology and Cell Biology, School of Medicine, Kagawa University, Miki, Kagawa, Japan
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32
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Kim MM, Penjweini R, Gemmell NR, Veilleux I, McCarthy A, Buller G, Hadfield RH, Wilson BC, Zhu TC. A feasibility study of singlet oxygen explicit dosmietry (SOED) of PDT by intercomparison with a singlet oxygen luminescence dosimetry (SOLD) system. PROCEEDINGS OF SPIE--THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING 2016; 9694:969406. [PMID: 27064489 PMCID: PMC4823004 DOI: 10.1117/12.2213236] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
An explicit dosimetry model has been developed to calculate the apparent reacted 1O2 concentration ([1O2]rx) in an in-vivo model. In the model, a macroscopic quantity, g, is introduced to account for oxygen perfusion to the medium during PDT. In this study, the SOED model is extended for PDT treatment in phantom conditions where vasculature is not present; the oxygen perfusion is achieved through the air-phantom interface instead. The solution of the SOED model is obtained by solving the coupled photochemical rate equations incorporating oxygen perfusion through the air-liquid interface. Experiments were performed for two photosensitizers (PS), Rose Bengal (RB) and Photofrin (PH), in solution, using SOED and SOLD measurements to determine both the instantaneous [1O2] as well as cumulative [1O2]rx concentrations, where [1O2] rx = (1/τΔ) · ∫[1O2]dt. The PS concentrations varied between 10 and 100 mM for RB and ~200 mM for Photofrin. The resulting magnitudes of [1O2] were compared between SOED and SOLD.
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Affiliation(s)
- Michele M. Kim
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, USA
| | - Rozhin Penjweini
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Nathan R. Gemmell
- Department of Electronic and Nanoscale Engineering, University of Glasgow, UK
| | - Israel Veilleux
- Princess Margaret Cancer Centre, University of Toronto, Canada
| | - Aongus McCarthy
- Institute of Photonics and Quantum Sciences, Heriot-Watt University, UK
| | - Gerald Buller
- Institute of Photonics and Quantum Sciences, Heriot-Watt University, UK
| | - Robert H. Hadfield
- Department of Electronic and Nanoscale Engineering, University of Glasgow, UK
| | - Brian C. Wilson
- Princess Margaret Cancer Centre, University of Toronto, Canada
| | - Timothy C. Zhu
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
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33
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Ping JT, Peng HS, Duan WB, You FT, Song M, Wang YQ. Synthesis and optimization of ZnPc-loaded biocompatible nanoparticles for efficient photodynamic therapy. J Mater Chem B 2016; 4:4482-4489. [DOI: 10.1039/c6tb00307a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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34
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Palmer AM, Knoll JD, Turro C. Photoinduced interactions of two dirhodium complexes with d(GTCGAC)2 probed by 2D NOESY. Dalton Trans 2015; 44:3640-6. [PMID: 25557067 DOI: 10.1039/c4dt03119a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The interactions between the 6-mer duplex oligonucleotide d(GTCGAC)2 and the photoactive dirhodium complexes cis-H,H-[Rh2(HNOCCH3)2(L)(CH3CN)4](2+), where L represents bpy (1, 2,2'-bipyridine) and dppz (2, dipyrido[3,2-a:2',3'-c]phenazine), were probed using 2D (1)H-(1)H NOESY NMR spectroscopy. Complex does not interact with the duplex in the dark, but binds covalently to the terminal guanine following irradiation with visible light. Similar behavior was observed for 2, but in addition to the photoinduced covalent DNA binding, the planar dppz ligand of the complex shields the terminal cytosine protons after irradiation. The results are consistent with photoinduced guanine coordination and end-capping of the duplex through π-stacking interactions with the terminal GC base pair. These data show that in the presence of the 6-mer duplex oligonucleotide, 1 and 2 exhibit photoinduced covalent binding to DNA. In addition, the π-stacking interactions of 2 with the duplex are enhanced upon irradiation.
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Affiliation(s)
- Alycia M Palmer
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA.
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35
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Yu HJ, Huang SM, Chao H, Ji LN. Synthesis, crystal structure and anaerobic DNA photocleavage of ruthenium complexes [Ru(tpy)(dpoq)Cl] + and [Ru(tpy)(dpoq)CH 3 CN] 2+. J Inorg Biochem 2015; 149:80-7. [DOI: 10.1016/j.jinorgbio.2015.02.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 02/10/2015] [Accepted: 02/11/2015] [Indexed: 12/21/2022]
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36
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Reichardt C, Pinto M, Wächtler M, Stephenson M, Kupfer S, Sainuddin T, Guthmuller J, McFarland SA, Dietzek B. Photophysics of Ru(II) Dyads Derived from Pyrenyl-Substitued Imidazo[4,5-f][1,10]phenanthroline Ligands. J Phys Chem A 2015; 119:3986-94. [PMID: 25826128 DOI: 10.1021/acs.jpca.5b01737] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The photophysics of a series of Ru(II) dyads based on the 2-(1-pyrenyl)-1H-imidazo[4,5-f][1,10]-phenanthroline ligand was investigated. The ability of these metal complexes to intercalate DNA and induce cell death upon photoactivation makes them attractive photosensitizers for a range of photobiological applications, including photodynamic therapy. In the present study, time-resolved transient absorption and emission spectroscopy were used to interrogate the photoinduced processes that follow metal-to-ligand charge transfer excitation of the complexes in solution. It was found that energy transfer to pyrene-localized intraligand triplet states, facilitated by torsional motion of the pyrene moiety relative to the imidazo[4,5-f][1,10]phenanthroline ligand, was an important relaxation pathway governing the photophysical dynamics in this class of compounds. Biphasic decay kinetics were assigned to spontaneous (pre-equilibrium) and delayed emission, arising from an equilibrium established between (3)MLCT and (3)IL states. TDDFT calculations supported these interpretations.
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Affiliation(s)
- Christian Reichardt
- †Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University Jena, Helmholtzweg 4, 07743 Jena, Germany.,‡Leibniz Institute of Photonic Technology (IPHT) e.V., Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Mitch Pinto
- §Department of Chemistry, Acadia University, Wolfville, NS B4P 2R6, Canada
| | - Maria Wächtler
- ‡Leibniz Institute of Photonic Technology (IPHT) e.V., Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Mat Stephenson
- §Department of Chemistry, Acadia University, Wolfville, NS B4P 2R6, Canada
| | - Stephan Kupfer
- †Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Tariq Sainuddin
- §Department of Chemistry, Acadia University, Wolfville, NS B4P 2R6, Canada
| | - Julien Guthmuller
- ∥Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland
| | - Sherri A McFarland
- §Department of Chemistry, Acadia University, Wolfville, NS B4P 2R6, Canada
| | - Benjamin Dietzek
- †Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University Jena, Helmholtzweg 4, 07743 Jena, Germany.,‡Leibniz Institute of Photonic Technology (IPHT) e.V., Albert-Einstein-Straße 9, 07745 Jena, Germany
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37
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Affiliation(s)
- Sasidharan Swarnalatha Lucky
- NUS Graduate School for Integrative Sciences & Engineering (NGS), National University of Singapore, Singapore, Singapore 117456
- Department
of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore, Singapore 117576
| | - Khee Chee Soo
- Division
of Medical Sciences, National Cancer Centre Singapore, Singapore, Singapore 169610
| | - Yong Zhang
- NUS Graduate School for Integrative Sciences & Engineering (NGS), National University of Singapore, Singapore, Singapore 117456
- Department
of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore, Singapore 117576
- College
of Chemistry and Life Sciences, Zhejiang Normal University, Zhejiang, P. R. China 321004
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38
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Dąbrowski JM, Arnaut LG. Photodynamic therapy (PDT) of cancer: from local to systemic treatment. Photochem Photobiol Sci 2015. [DOI: 10.1039/c5pp00132c] [Citation(s) in RCA: 295] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Photodynamic therapy (PDT) requires a medical device, a photosensitizing drug and adequate use of both to trigger biological mechanisms that can rapidly destroy the primary tumour and provide long-lasting protection against metastasis.
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Affiliation(s)
| | - Luis G. Arnaut
- Chemistry Department
- University of Coimbra
- 3004-535 Coimbra
- Portugal
- Luzitin SA
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39
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Knoll JD, Turro C. Control and utilization of ruthenium and rhodium metal complex excited states for photoactivated cancer therapy. Coord Chem Rev 2015; 282-283:110-126. [PMID: 25729089 PMCID: PMC4343038 DOI: 10.1016/j.ccr.2014.05.018] [Citation(s) in RCA: 315] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The use of visible light to produce highly selective and potent drugs through photodynamic therapy (PDT) holds much potential in the treatment of cancer. PDT agents can be designed to follow an O2-dependent mechanism by producing highly reactive species such as 1O2 and/or an O2 independent mechanism through processes such as excited state electron transfer, covalent binding to DNA or photoinduced drug delivery. Ru(II)-polypyridyl and Rh2(II,II) complexes represent an important class of compounds that can be tailored to exhibit desired photophysical properties and photochemical reactivity by judicious selection of the ligand set. Complexes with relatively long-lived excited states and planar, intercalating ligands localize on the DNA strand and photocleave DNA through 1O2 production or guanine oxidation by the excited state of the chromophore. Photoinduced ligand substitution occurs through the population of triplet metal centered (3MC) excited states and facilitates covalent binding of the metal complex to DNA in a mode similar to cisplatin. Ligand photodissociation also provides a route to selective drug delivery. The ability to construct metal complexes with desired light absorbing and excited state properties by ligand variation enables the design of PDT agents that can potentially provide combination therapy from a single metal complex.
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Affiliation(s)
- Jessica D. Knoll
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA
| | - Claudia Turro
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA
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40
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Walaszek DJ, Maximova K, Rybicka-Jasińska K, Lipke A, Gryko D. Synthesis of chiral porphyrins and their use in photochemical oxidation of carbonyl compounds. J PORPHYR PHTHALOCYA 2014. [DOI: 10.1142/s1088424614500229] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A series of chiral A4, A2B2, and AB3 porphyrins bearing proline moieties at the meso-phenyl group has been synthesized. Photostability studies revealed that the number of L-proline units and their position on meso-phenyl rings strongly influence the decomposition rate of the catalyst. 5,10,15-Tris(mesityl)-20-(3-prolinanilidylphenyl)-21,23H-porphyrin is the most stable while porphyrin bearing four 3-prolinanilidylphenyl substituents completely decomposes in CHCl 3 within 3 h. Singlet oxygen quantum yields of the conjugates were determined by measuring the peak areas of the NIR emission of 1 O 2 (1280 nm) generated by these compounds and compared to that generated by the reference standard TPP. Selected porphyrins were tested as catalysts in the photooxidation of carbonyl compounds at the α-position.
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Affiliation(s)
- Dominika J. Walaszek
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Ksenia Maximova
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | | | - Agnieszka Lipke
- Faculty of Chemistry, Maria Curie-Skłodowska University, M. Curie-Skłodowska Sq. 2, 20-031 Lublin, Poland
| | - Dorota Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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41
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Xia L, Kong X, Liu X, Tu L, Zhang Y, Chang Y, Liu K, Shen D, Zhao H, Zhang H. An upconversion nanoparticle – Zinc phthalocyanine based nanophotosensitizer for photodynamic therapy. Biomaterials 2014; 35:4146-56. [DOI: 10.1016/j.biomaterials.2014.01.068] [Citation(s) in RCA: 186] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 01/26/2014] [Indexed: 12/11/2022]
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42
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Chutoprapat R, Chan LW, Heng PWS. Ex-vivo permeation study of chlorin e6-polyvinylpyrrolidone complexes through the chick chorioallantoic membrane model. J Pharm Pharmacol 2014; 66:943-53. [PMID: 24697155 DOI: 10.1111/jphp.12222] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 01/01/2013] [Indexed: 01/24/2023]
Abstract
OBJECTIVE To investigate the influence of the hydrophilic polymer, polyvinylpyrrolidone (PVP) on the ex-vivo permeability of the poorly water-soluble photosensitizer, chlorin e6 (Ce6) using the chick chorioallantoic membrane (CAM) model. METHODS The CAM was removed from the fertilized chicken egg at embryo age of 15 days. The permeation profiles of Ce6 and PVP complexes (Ce6-PVP) at 1:0, 1:1, 1:10, 1:50 and 1:100 w/w in different pH conditions were first studied using the CAM model with Franz diffusion cell over 8 h. The solution viscosity of the formulations and apparent solubility of Ce6 were also investigated. KEY FINDINGS The permeability of Ce6 was found to be directly proportional to the amount of PVP used and the apparent solubility of Ce6. Permeability was only marginally affected by the solution viscosity of the formulations. The permeability of Ce6 was lowered in the acidic pH. Ce6-PVP at 1:100 w/w gave the highest percentage release of Ce6 across the CAM, with 23% at pH 3 and 55% at pH 7.4, after 8 h, respectively. CONCLUSIONS The present work suggests that PVP had served as penetration enhancer for the poorly water-soluble Ce6 and the CAM can serve as a useful biological membrane model for preclinical permeability study of biological and pharmaceutical substances. The Ce6-PVP formulation at 1:100 w/w can be applied for the further clinical investigation.
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Affiliation(s)
- Romchat Chutoprapat
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, Singapore
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43
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Abstract
Theories of radiationless conversions and of chemical processes were employed to
design better photosensitizers for photodynamic therapy (PDT). In addition to
photostability and intense absorption in the near infrared, these
photosensitizers were required to generate high yields of long-lived triplet
states that could efficiently transfer their energy, or an electron, to
molecular oxygen. The guidance provided by the theories was combined with the
ability to synthesize large quantities of pure photosensitizers and with the
biological screening of graded hydrophilicities/lipophilicities. The theoretical
prediction that halogenated sulfonamide tetraphenylbacteriochlorins could
satisfy all the criteria for ideal PDT photosensitizers was verified
experimentally.
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44
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Mitra P, Chakraborty B, Bhattacharyya D, Basu S. Excimer of 9-aminoacridine hydrochloride hydrate in confined medium: an integrated experimental and theoretical study. J Phys Chem A 2013; 117:1428-38. [PMID: 23346864 DOI: 10.1021/jp3103639] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We aim to find out the extent of stability of the excimer of 9-aminoacridine hydrochloride hydrate (9AA), a prospective PDT drug, in different confined media with varying cavity size. When confined in cetyltrimethyl ammonium bromide micelles, although at low concentration of 9AA, only a single distinct peak (λ(max) at 460 nm) with a shoulder at 485 nm is observed in steady-state fluorescence spectrum, yet with increase in concentration the peak and the shoulder merge with simultaneous emergence of another peak at 535 nm, which is assigned to excimer. Similar behavior is also observed in Triton-X, crown ether, α-cyclodextrin, β-cyclodextrin, and homogeneous aqueous medium. The formation of excimer, which reflects the extent of confinement of 9AA, is maximum in β-cyclodextrin followed by others. Steady-state and time-resolved fluorescence studies along with TRES and TRANES analyses coupled with anisotropy data and transient absorption studies reveal the presence of monomer-dimer equilibrium of 9AA in the excited state. Molecular modeling indicates that the structure of excimer is stabilized by locking of the two monomeric species via four hydrogen bonds formed between the amino-H and imino-N of 9AA monomers, whereas the dimer in the ground state has only two such hydrogen bonds.
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Affiliation(s)
- Piyali Mitra
- Chemical Sciences Division, Saha Institute of Nuclear Physics, 1/AF, Bidhannagar, Kolkata 700064, India
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45
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Trytek M, Lipke A, Majdan M, Pisarek S, Gryko D. Homo- and Heterogeneous α-Pinene Photooxidation Using a Protoporphyrin-Derived Amide. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201304] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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46
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Liu K, Liu X, Zeng Q, Zhang Y, Tu L, Liu T, Kong X, Wang Y, Cao F, Lambrechts SAG, Aalders MCG, Zhang H. Covalently assembled NIR nanoplatform for simultaneous fluorescence imaging and photodynamic therapy of cancer cells. ACS NANO 2012; 6:4054-4062. [PMID: 22463487 DOI: 10.1021/nn300436b] [Citation(s) in RCA: 270] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A highly efficient multifunctional nanoplatform for simultaneous upconversion luminescence (UCL) imaging and photodynamic therapy has been developed on the basis of selective energy transfer from multicolor luminescent NaYF(4):Yb(3+),Er(3+) upconversion nanoparticles (UCNPs) to photosensitizers (PS). Different from popular approaches based on electrostatic or hydrophobic interactions, over 100 photosensitizing molecules were covalently bonded to every 20 nm UCNP, which significantly strengthened the UCNP-PS linkage and reduced the probability of leakage/desorption of the PS. Over 80% UCL was transferred to PS, and the singlet oxygen production was readily detected by its feature emission at 1270 nm. Tests performed on JAR choriocarcinoma and NIH 3T3 fibroblast cells verified the efficient endocytosis and photodynamic effect of the nanoplatform with 980 nm irradiation specific to JAR cancer cells. Our work highlights the promise of using UCNPs for potential image-guided cancer photodynamic therapy.
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Affiliation(s)
- Kai Liu
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, People's Republic of China
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47
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Sol–gel immobilization of octaethylporphine and hematoporphyrin for biomimetic photooxidation of α-pinene. J Catal 2012. [DOI: 10.1016/j.jcat.2011.11.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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48
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Grimland JL, Wu C, Ramoutar RR, Brumaghim JL, McNeill J. Photosensitizer-doped conjugated polymer nanoparticles with high cross-sections for one- and two-photon excitation. NANOSCALE 2011; 3:1451-1455. [PMID: 21293789 DOI: 10.1039/c0nr00834f] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We report a novel nanoparticle that is promising for photodynamic therapy applications, which consists of a π-conjugated polymer doped with a singlet oxygen photosensitizer. The nanoparticles exhibit highly efficient collection of excitation light due to the large excitation cross-section of the polymer. A quantum efficiency of singlet oxygen production of 0.5 was determined. Extraordinarily large two-photon excitation cross-sections were determined, indicating promise for near infrared multiphoton photodynamic therapy. Gel electrophoresis of DNA after near-UV irradiation in the presence of nanoparticles indicated both purine base and backbone DNA damage.
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Affiliation(s)
- Jennifer L Grimland
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634, USA
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49
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Dąbrowski JM, Urbanska K, Arnaut LG, Pereira MM, Abreu AR, Simões S, Stochel G. Biodistribution and photodynamic efficacy of a water-soluble, stable, halogenated bacteriochlorin against melanoma. ChemMedChem 2011; 6:465-75. [PMID: 21265022 DOI: 10.1002/cmdc.201000524] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Indexed: 12/31/2022]
Abstract
The in vitro phototoxicity of a photostable, synthetic, water-soluble, halogenated bacteriochlorin, 5,10,15,20-tetrakis(2-chloro-5-sulfophenyl)bacteriochlorin (TCPBSO3H), toward mouse melanoma (S91) cells is ∼60-fold higher than that of the analogous porphyrin, and is associated with very weak toxicity in the dark; 90% of S91 cells were killed in response to a light dose of 0.26 J cm(-2) in the presence of [TCPBSO3H]=5 μM. In vivo toxicity toward DBA mice is very low, even at doses of 20 mg kg(-1). In vivo pharmacokinetics and biodistribution of TCPBSO3H were studied in DBA mice with S91 tumors; 24 h after intraperitoneal injection of 10 mg kg(-1), TCPBSO3H demonstrated preferential accumulation in S91 mouse melanoma, with tumor-to-normal tissue ratios of 3 and 5 for muscle and skin, respectively. Photodynamic therapy (PDT) performed under these conditions, with 90 mW cm(-2) diode laser irradiation at λ 750 nm for 20 min (total light dose of 108 J cm(-2)), resulted in tumor regression. Tumor recurrence was observed only approximately two months after treatment, confirming the efficacy of this PDT against melanoma.
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Affiliation(s)
- Janusz M Dąbrowski
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland.
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50
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Dabrowski JM, Arnaut LG, Pereira MM, Monteiro CJP, Urbańska K, Simões S, Stochel G. New halogenated water-soluble chlorin and bacteriochlorin as photostable PDT sensitizers: synthesis, spectroscopy, photophysics, and in vitro photosensitizing efficacy. ChemMedChem 2011; 5:1770-80. [PMID: 20715283 DOI: 10.1002/cmdc.201000223] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Chlorin and bacteriochlorin derivatives of 5,10,15,20-tetrakis(2-chloro-5-sulfophenyl)porphyrin have intense absorptions in the phototherapeutic window, high water solubility, high photostability, low fluorescence quantum yield, long triplet lifetimes, and high singlet oxygen quantum yields. Biological studies revealed their negligible dark cytotoxicity, yet significant photodynamic effect against A549 (human lung adenocarcinoma), MCF7 (human breast carcinoma) and SK-MEL-188 (human melanoma) cell lines upon red light irradiation (cutoff λ<600 nm) at low light doses. Time-dependent cellular accumulation of the chlorinated sulfonated chlorin reached a plateau at 2 h, as previously observed for the related porphyrin. However, the optimal incubation time for the bacteriochlorin derivative was significantly longer (12 h). The spectroscopic, photophysical, and biological properties of the compounds are discussed in relevance to their PDT activity, leading to the conclusion that the bacteriochlorin derivative is a promising candidate for future in vivo experiments.
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