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Gangemi CMA, Castriciano MA, D'Agostino E, Romeo A, Bonaccorsi PM, Barattucci A, Monsù Scolaro L. Rod-like nanostructures through amphiphilic OPE-porphyrin self-organization. Org Biomol Chem 2023; 21:8079-8083. [PMID: 37753842 DOI: 10.1039/d3ob01385e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
A new amphiphilic monosubstituted porphyrin functionalized by a β-D-glucoside terminated oligophenylenethylene (OPE) able to self-arrange into nano-aggregates in polar solvents has been synthesized and fully characterized in its monomeric and aggregated forms.
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Affiliation(s)
- Chiara M A Gangemi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Maria A Castriciano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Ester D'Agostino
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Andrea Romeo
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Paola M Bonaccorsi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Anna Barattucci
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Luigi Monsù Scolaro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
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2
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Lara-Pardo A, Mancuso A, Simón-Fuente S, Bonaccorsi PM, Gangemi CMA, Moliné MÁ, Puntoriero F, Ribagorda M, Barattucci A, Sanz-Rodriguez F. Amino-OPE glycosides and blue light: a powerful synergy in photodynamic therapy. Org Biomol Chem 2023; 21:386-396. [PMID: 36524706 DOI: 10.1039/d2ob01742c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Herein we report the synthesis and biological properties of sugar-conjugated oligophenylene ethynylene (OPE) dyes, used as novel photosensitizers (PSs) for photodynamic treatment (PDT) under blue light. The OPE-bearing glycosides at both ends are successfully prepared by a Pd-catalyzed Sonogashira cross-coupling reaction. The live-cell imaging studies have shown that these OPE glycosides (including glucose, mannose and maltose derivatives) efficiently penetrate the cytoplasm of cultured HeLa cancer cells. No dark toxicity was observed, but upon irradiating the cells under blue light an extraordinary photodynamic effect was observed at low concentrations (10-6-10-8 M). The localization studies indicate that OPE-glucose 1 and OPE-mannose 2 have Golgi patterns, whereas OPE-maltose 3 could be in lysosomes. The PDT and morphological studies in HeLa cells treated with sublethal doses of PS 1-3 revealed that cell death occurs by necrosis.
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Affiliation(s)
- Andrea Lara-Pardo
- Nanomaterials for Bioimaging Group (NanoBIG), Departamento de Biología. Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
| | - Aurora Mancuso
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali (ChiBioFarAm), Università degli Studi di Messina, 98168 Messina, Italy.
| | - Silvia Simón-Fuente
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Paola M Bonaccorsi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali (ChiBioFarAm), Università degli Studi di Messina, 98168 Messina, Italy.
| | - Chiara M A Gangemi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali (ChiBioFarAm), Università degli Studi di Messina, 98168 Messina, Italy.
| | - María Ángeles Moliné
- Nanomaterials for Bioimaging Group (NanoBIG), Departamento de Biología. Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
| | - Fausto Puntoriero
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali (ChiBioFarAm), Università degli Studi di Messina, 98168 Messina, Italy.
| | - Maria Ribagorda
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Spain
| | - Anna Barattucci
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali (ChiBioFarAm), Università degli Studi di Messina, 98168 Messina, Italy.
| | - Francisco Sanz-Rodriguez
- Nanomaterials for Bioimaging Group (NanoBIG), Departamento de Biología. Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
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Antileukemia Activity and Mechanism of Platinum(II)-Based Metal Complexes. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27249000. [PMID: 36558133 PMCID: PMC9786739 DOI: 10.3390/molecules27249000] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Transition metal complexes have continued to constitute an appealing class of medicinal compounds since the exceptional discovery of cisplatin in the late 1960s. Pt(II)-based complexes are endowed with a broad range of biological properties, which are mainly exerted by targeting DNA. In this study, we report a significant biological investigation into and computation analyses of four Pt(II)-complexes, namely, LDP-1-4, synthesized and characterized according to previously reported procedures. Molecular-modelling studies highlighted that the top two LDP compounds (i.e., LDP-1 and LDP-4) might bind to both matched and mismatched base pair sites of the oligonucleotide 5'-(dCGGAAATTACCG)2-3', supporting their anticancer potential. These two complexes displayed noteworthy cytotoxicity in vitro (sub-micromolar-micromolar range) against two leukaemia cell lines, i.e., CCRF-CEM and its multi-drug-resistant counterpart CEM/ADR5000, and remarkable anti-angiogenic properties (in the sub-micromolar range) evaluated in an in vivo model, i.e., a chick embryo chorioallantoic membrane (CAM) assay.
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4
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Condorelli M, Speciale A, Cimino F, Muscarà C, Fazio E, D’Urso L, Corsaro C, Neri G, Mezzasalma AM, Compagnini G, Neri F, Saija A. Nano-Hybrid Au@LCCs Systems Displaying Anti-Inflammatory Activity. MATERIALS (BASEL, SWITZERLAND) 2022; 15:3701. [PMID: 35629727 PMCID: PMC9143445 DOI: 10.3390/ma15103701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/17/2022] [Accepted: 05/20/2022] [Indexed: 11/25/2022]
Abstract
Gold nanoparticles (Au NPs) have received great attention owing to their biocompatible nature, environmental, and widespread biomedical applications. Au NPs are known as capable to regulate inflammatory responses in several tissues and organs; interestingly, lower toxicity in conjunction with anti-inflammatory effects was reported to occur with Au NPs treatment. Several variables drive this benefit-risk balance, including Au NPs physicochemical properties such as their morphology, surface chemistry, and charge. In our research we prepared hybrid Au@LCC nanocolloids by the Pulsed Laser Ablation, which emerged as a suitable chemically clean technique to produce ligand-free or functionalized nanomaterials, with tight control on their properties (product purity, crystal structure selectivity, particle size distribution). Here, for the first time to our knowledge, we have investigated the bioproperties of Au@LCCs. When tested in vitro on intestinal epithelial cells exposed to TNF-α, Au@LCCs sample at the ratio of 2.6:1 showed a significantly reduced TNF gene expression and induced antioxidant heme oxygenase-1 gene expression better than the 1:1 dispersion. Although deeper investigations are needed, these findings indicate that the functionalization with LCCs allows a better interaction of Au NPs with targets involved in the cell redox status and inflammatory signaling.
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Affiliation(s)
- Marcello Condorelli
- Department of Chemical Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy; (M.C.); (L.D.); (G.C.)
| | - Antonio Speciale
- Department of Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina, Viale F. Stagno D’Alcontres 31, 98166 Messina, Italy; (A.S.); (F.C.); (C.M.); (G.N.)
| | - Francesco Cimino
- Department of Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina, Viale F. Stagno D’Alcontres 31, 98166 Messina, Italy; (A.S.); (F.C.); (C.M.); (G.N.)
| | - Claudia Muscarà
- Department of Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina, Viale F. Stagno D’Alcontres 31, 98166 Messina, Italy; (A.S.); (F.C.); (C.M.); (G.N.)
| | - Enza Fazio
- Department of Mathematical and Computational Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale F. Stagno D’Alcontres 31, 98166 Messina, Italy; (E.F.); (C.C.); (A.M.M.)
| | - Luisa D’Urso
- Department of Chemical Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy; (M.C.); (L.D.); (G.C.)
| | - Carmelo Corsaro
- Department of Mathematical and Computational Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale F. Stagno D’Alcontres 31, 98166 Messina, Italy; (E.F.); (C.C.); (A.M.M.)
| | - Giulia Neri
- Department of Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina, Viale F. Stagno D’Alcontres 31, 98166 Messina, Italy; (A.S.); (F.C.); (C.M.); (G.N.)
| | - Angela Maria Mezzasalma
- Department of Mathematical and Computational Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale F. Stagno D’Alcontres 31, 98166 Messina, Italy; (E.F.); (C.C.); (A.M.M.)
| | - Giuseppe Compagnini
- Department of Chemical Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy; (M.C.); (L.D.); (G.C.)
| | - Fortunato Neri
- Department of Mathematical and Computational Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale F. Stagno D’Alcontres 31, 98166 Messina, Italy; (E.F.); (C.C.); (A.M.M.)
| | - Antonina Saija
- Department of Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina, Viale F. Stagno D’Alcontres 31, 98166 Messina, Italy; (A.S.); (F.C.); (C.M.); (G.N.)
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Santoro A, Bella G, Cancelliere AM, Serroni S, Lazzaro G, Campagna S. Photoinduced Electron Transfer in Organized Assemblies—Case Studies. Molecules 2022; 27:molecules27092713. [PMID: 35566062 PMCID: PMC9102318 DOI: 10.3390/molecules27092713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/16/2022] [Accepted: 04/19/2022] [Indexed: 12/10/2022] Open
Abstract
In this review, photoinduced electron transfer processes in specifically designed assembled architectures have been discussed in the light of recent results reported from our laboratories. A convenient and useful way to study these systems is described to understand the rules that drive a light-induced charge-separated states and its subsequent decay to the ground state, also with the aim of offering a tutorial for young researchers. Assembled systems of covalent or supramolecular nature have been presented, and some functional multicomponent systems for the conversion of light energy into chemical energy have been discussed.
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Barattucci A, Gangemi CMA, Santoro A, Campagna S, Puntoriero F, Bonaccorsi P. Bodipy-carbohydrate systems: synthesis and bio-applications. Org Biomol Chem 2022; 20:2742-2763. [PMID: 35137764 DOI: 10.1039/d1ob02459k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Luminescent BODIPY-sugar probes have stimulated the attention of researchers for the potential applications of such molecular systems in bio-imaging. The presence of carbohydrate units confers unique structural and biological features, beside enhancement of water solubility and polarity. On the other hand, BODIPY (BOronDiPYrromethene) derivatives represent eclectic and functional luminescent molecules because of their outstanding photophysical properties. This article provides a review on the synthesis and applications of BODIPY-linked glycosyl probes in which the labelling of complex carbohydrates with BODIPY allowed the disclosing of their in vivo behaviour or where the sugar constitutes a recognition element for specific targeting probes, or, finally, in which the stereochemical characteristics of the carbohydrate hydroxyl groups play as structural elements for assembling more than one photoactive subunit, resulting in functional supramolecular molecules with modulable properties. We describe the methods we have used to construct various multiBODIPY molecular systems capable of functioning as artificial antennas exhibiting extremely efficient and fast photo-induced energy transfer. Some of these systems have been designed to allow the modulation of energy transfer efficiency and emission color, and intensity dependent on their position within a biological matrix. Finally, future perspectives for such BODIPY-based functional supramolecular sugar systems are also highlighted.
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Affiliation(s)
- Anna Barattucci
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Chiara M A Gangemi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Antonio Santoro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Sebastiano Campagna
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Fausto Puntoriero
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Paola Bonaccorsi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Via F. Stagno d'Alcontres 31, 98166 Messina, Italy.
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Corsaro C, Neri G, Santoro A, Fazio E. Acrylate and Methacrylate Polymers' Applications: Second Life with Inexpensive and Sustainable Recycling Approaches. MATERIALS (BASEL, SWITZERLAND) 2021; 15:282. [PMID: 35009430 PMCID: PMC8746205 DOI: 10.3390/ma15010282] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 12/13/2022]
Abstract
Polymers are widely employed in several fields thanks to their wide versatility and the easy derivatization routes. However, a wide range of commercial polymers suffer from limited use on a large scale due to their inert nature. Nowadays, acrylate and methacrylate polymers, which are respectively derivatives of acrylic or methacrylic acid, are among the most proposed materials for their useful characteristics like good biocompatibility, capping ability toward metal clusters, low price, potentially recyclability and reusability. Here, we discuss the advantages and challenges of this class of smart polymers focusing our attention on their current technological applications in medical, electronic, food packaging and environmental remediation fields. Furthermore, we deal with the main issue of their recyclability, considering that the current commercial bioplastics are not yet able to meet the global needs as much as to totally replace fossil-fuel-based products. Finally, the most accredited strategies to reach recyclable composites based on acrylic polymers are described.
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Affiliation(s)
- Carmelo Corsaro
- Department of Mathematical and Computational Sciences, Physics Science and Earth Science, University of Messina, 98166 Messina, Italy;
| | - Giulia Neri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (G.N.); (A.S.)
| | - Antonio Santoro
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (G.N.); (A.S.)
| | - Enza Fazio
- Department of Mathematical and Computational Sciences, Physics Science and Earth Science, University of Messina, 98166 Messina, Italy;
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Intermolecular Forces Driving Hexamethylenetetramine Co-Crystal Formation, a DFT and XRD Analysis. Molecules 2021; 26:molecules26195746. [PMID: 34641290 PMCID: PMC8510214 DOI: 10.3390/molecules26195746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/07/2021] [Accepted: 09/15/2021] [Indexed: 11/16/2022] Open
Abstract
Interest in co-crystals formation has been constantly growing since their discovery, almost a century ago. Such success is due to the ability to tune the physical-chemical properties of the components in solid state by avoiding a change in their molecular structure. The properties influenced by the co-crystals formation range from an improvement of mechanical features and chemical stability to different solubility. In the scientific research area, the pharmacological field is undoubtedly one of those in which an expansion of the co-crystal knowledge can offer wide benefits. In this work, we described the crystalline structure of hexamethylenetetramine co-crystallized with the isophthalic acid, and we compared it with another co-crystal, showing the same components but different stoichiometry. To give a wider overview on the nature of the interactions behind the observed crystal packing and to rationalize the reasons of its formation, a computational analysis on such structures was carried out.
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9
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Ounalli C, Essid M, Bruno G, Abid S, Santoro A, Aloui Z. Structural, vibrational, optical properties and theoretical studies of new noncentrosymmetric material: Bis(2-Amino-5-(methylthio)-1,3,4-thiadiazol-3-ium) pentachloroantimonate. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Weibull Modeling of Controlled Drug Release from Ag-PMA Nanosystems. Polymers (Basel) 2021; 13:polym13172897. [PMID: 34502937 PMCID: PMC8434431 DOI: 10.3390/polym13172897] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 01/22/2023] Open
Abstract
Traditional pharmacotherapy suffers from multiple drawbacks that hamper patient treatment such as antibiotic resistances or low drug selectivity and toxicity during systemic applications. Some functional hybrid nanomaterials are designed to handle the drug release process under remote-control. More attention has recently been paid to synthetic polyelectrolytes for their intrinsic properties which allow them to rearrange into compact structures, ideal to be used as drug carriers or probes influencing biochemical processes. The presence of Ag nanoparticles (NPs) in the Poly methyl acrylate (PMA) matrix leads to an enhancement of drug release efficiency, even using a low-power laser whose wavelength is far from the Ag Surface Plasmon Resonance (SPR) peak. Further, compared to the colloids, the nanofiber-based drug delivery system has shown shorter response time and more precise control over the release rate. The efficiency and timing of involved drug release mechanisms has been estimated by the Weibull distribution function, whose parameters indicate that the release mechanism of nanofibers obeys Fick's first law while a non-Fickian character controlled by diffusion and relaxation of polymer chains occurs in the colloidal phase.
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Gangemi CMA, Barattucci A, Bonaccorsi PM. A Portrait of the OPE as a Biological Agent. Molecules 2021; 26:3088. [PMID: 34064279 PMCID: PMC8196911 DOI: 10.3390/molecules26113088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/19/2021] [Accepted: 05/19/2021] [Indexed: 11/17/2022] Open
Abstract
Oligophenylene ethynylenes, known as OPEs, are a sequence of aromatic rings linked by triple bonds, the properties of which can be modulated by varying the length of the rigid main chain or/and the nature and position of the substituents on the aromatic units. They are luminescent molecules with high quantum yields and can be designed to enter a cell and act as antimicrobial and antiviral compounds, as biocompatible fluorescent probes directed towards target organelles in living cells, as labelling agents, as selective sensors for the detection of fibrillar and prefibrillar amyloid in the proteic field and in a fluorescence turn-on system for the detection of saccharides, as photosensitizers in photodynamic therapy (due to their capacity to highly induce toxicity after light activation), and as drug delivery systems. The antibacterial properties of OPEs have been the most studied against very popular and resistant pathogens, and in this paper the achievements of these studies are reviewed, together with almost all the other roles held by such oligomers. In the recent decade, their antifungal and antiviral effects have attracted the attention of researchers who believe OPEs to be possible biocides of the future. The review describes, for instance, the preliminary results obtained with OPEs against severe acute respiratory syndrome coronavirus 2, the virus responsible for the COVID-19 pandemic.
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Affiliation(s)
| | - Anna Barattucci
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali (ChiBioFarAm), Università degli Studi di Messina, 98168 Messina, Italy; (C.M.A.G.); (P.M.B.)
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12
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Synthesis of a triethylene glycol-capped benzo[1,2-c:4,5-c']bis[2]benzopyran-5,12-dione: A highly soluble dilactone-bridged p-terphenyl with a crankshaft architecture. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Yuan Q, Wang Y, Yao P, Lv J, Wang Q, Sun F, Feng W. Effect of unsymmetrical oligo-phenylene-ethynylene OPE3 against multidrug-resistant bacteria in vitro and in vivo. J Chemother 2020; 33:156-164. [PMID: 32460634 DOI: 10.1080/1120009x.2020.1770026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The rapid proliferation of multidrug-resistant (MDR) bacterial infections has posed the serious health threats. Photodynamic therapy is considered one of the most promising therapeutic strategies for combating bacterial resistance. In the present study, we synthesized an unsymmetrical oligo-p-phenylene ethynylene (OPE), namely OPE3, and investigated its antimicrobial activity against gram-negative and gram-positive MDR bacteria in vitro and in vivo. The results showed that OPE3 had marked antibacterial activity against MDR bacteria under light irradiation conditions. OPE3 exerted a slightly greater effect on gram-positive bacteria than gram-negative bacteria. Biofilm assay results showed that OPE3 could not inhibit biofilm formation at sub-minimum inhibitory concentrations (MICs), whereas a significant decrease in preformed biofilms was observed when they were treated with OPE3 at concentrations ≥2 × MIC. OPE3 had no hemolytic activity or cytotoxicity in mammalian cells at low concentrations. In the mouse model of burn infection caused by Pseudomonas aeruginosa and Staphylococcus aureus, the treatment of infected wounds with OPE3 resulted in a significant dose-dependent reduction in the bacterial load and caused smaller skin lesions. In addition, the levels of the inflammatory cytokines TNF-α and IL-6 in the serum were also significantly reduced. The present study results indicate that OPE3 may serve as a potent antimicrobial molecule for the treatment of MDR bacterial infections.
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Affiliation(s)
- Qian Yuan
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yu Wang
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Pu Yao
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jun Lv
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Qianmei Wang
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Fengjun Sun
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Wei Feng
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
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14
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Trovato E, Di Pietro ML, Giannetto A, Dupeyre G, Lainé PP, Nastasi F, Puntoriero F, Campagna S. Designing expanded bipyridinium as redox and optical probes for DNA. Photochem Photobiol Sci 2020; 19:105-113. [PMID: 31930262 DOI: 10.1039/c9pp00418a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on the light-switch behaviour of two head-to-tail expanded bipyridinium species as a function of their interaction with calf thymus DNA and polynucleotides. In particular, both DNA and polynucleotides containing exclusively adenine or guanine moieties quench the luminescence of the fused expanded bipyridinium species. This behaviour has been rationalized demonstrating that a reductive photoinduced electron transfer process takes place involving both adenine or guanine moieties. The charge separated state so produced recombines in the tens of picoseconds. These results could help in designing new organic substrates for application in DNA probing technology and lab on chip-based sensing systems.
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Affiliation(s)
- Emanuela Trovato
- Chromaleont S.r.l., Università degli Studi di Messina, Polo Annunziata, Viale Annunziata, Messina, 98168, Italy
| | - Maria Letizia Di Pietro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali - ChiBioFarAm - Università di Messina, Viale F. Stagno d'Alcontres 31, Messina, 98166, Italy
| | - Antonino Giannetto
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali - ChiBioFarAm - Università di Messina, Viale F. Stagno d'Alcontres 31, Messina, 98166, Italy
| | - Gregory Dupeyre
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, Paris, F-75013, France
| | - Philippe P Lainé
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, Paris, F-75013, France
| | - Francesco Nastasi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali - ChiBioFarAm - Università di Messina, Viale F. Stagno d'Alcontres 31, Messina, 98166, Italy
| | - Fausto Puntoriero
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali - ChiBioFarAm - Università di Messina, Viale F. Stagno d'Alcontres 31, Messina, 98166, Italy.
| | - Sebastiano Campagna
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali - ChiBioFarAm - Università di Messina, Viale F. Stagno d'Alcontres 31, Messina, 98166, Italy
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