101
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Fluorophore Tagged Mixed Ligand Copper(II) Complexes: Synthesis, Structural Characterization, Protein Binding, DNA Cleavage and Anticancer Activity. ChemistrySelect 2021. [DOI: 10.1002/slct.202103314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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102
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Walunj D, Thankarajan E, Prasad C, Tuchinsky H, Baldan S, Sherman MY, Patsenker L, Gellerman G. Targeted methylation facilitates DNA double strand breaks and enhances cancer suppression: A DNA intercalating/methylating dual-action chimera Amonafidazene. Eur J Med Chem 2021; 225:113811. [PMID: 34507011 DOI: 10.1016/j.ejmech.2021.113811] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 08/14/2021] [Accepted: 08/27/2021] [Indexed: 02/01/2023]
Abstract
A DNA intercalating agent Amonafide interferes with topoisomerase 2 (Topo II) activity and prevents re-ligation of DNA strands, leading to double strand breaks (DSB). If DSB repair fails, cells stop dividing and eventually die. In a search of approaches to enhance anti-cancer activities of Topo II inhibitors, we hypothesized that introduction of additional damage in proximity to the DSB may suppress DNA repair and enhance cancer cell killing. Accordingly, chimeric molecules were created that target a DNA alkylating component to the proximity of Topo II-induced DSBs. These chimeras consist of Amonafide or its 4-amino isomer, and DNA methylating methyl triazene moiety Azene protected with a carbamate group, connected via linker. Treatment of cancer cells with the chimeric molecules leads to significantly higher number of DSBs, which were repaired slower compared to Amonafide or monomethyl triazene-treated cells. On the other hand, methyl triazene linked to non-intercalating Amonafide analogs was ineffective. Together, these data strongly support our hypothesis. In line with increased DSBs, the chimeric molecules exhibited significantly higher antiproliferative activity in cancer cell lines compared to Amonafide or monomethyl triazene constituent Azene. We utilized the fluorescent properties of chimera Amonafidazene to develop ''photo-switchable'' reporting system to monitor the prodrug activation. Using this approach, we found that the chimera accumulated and was activated at the tumor sites specifically and demonstrated significantly stronger tumor suppressing activities compared to Amonafide in a xenograft model. Therefore, targeting alkylating groups to the proximity of DSB sites may become an effective approach towards enhancing anti-cancer activities of inhibitors of topoisomerases.
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Affiliation(s)
- Dipak Walunj
- Department of Chemical Sciences, Ariel University, Ariel, Israel
| | | | | | - Helena Tuchinsky
- Department of Molecular Biology, Ariel University, Ariel, Israel
| | - Simone Baldan
- Department of Molecular Biology, Ariel University, Ariel, Israel
| | | | - Leonid Patsenker
- Department of Chemical Sciences, Ariel University, Ariel, Israel
| | - Gary Gellerman
- Department of Chemical Sciences, Ariel University, Ariel, Israel.
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103
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Jaber S, Nemska V, Iliev I, Ivanova E, Foteva T, Georgieva N, Givechev I, Naydenova E, Karadjova V, Danalev D. Synthesis and Biological Studies on (KLAKLAK) 2-NH 2 Analog Containing Unnatural Amino Acid β-Ala and Conjugates with Second Pharmacophore. Molecules 2021; 26:7321. [PMID: 34885902 PMCID: PMC8658989 DOI: 10.3390/molecules26237321] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/24/2021] [Accepted: 11/30/2021] [Indexed: 11/25/2022] Open
Abstract
(1) Background: Peptides are good candidates for anticancer drugs due to their natural existence in the body and lack of secondary effects. (KLAKLAK)2 is an antimicrobial peptide that also shows good anticancer properties. (2) Methods: The Solid Phase Peptide Synthesis (Fmoc-strategy) was used for the synthesis of target molecules, analogs of (KLAKLAK)2-NH2. The purity of all compounds was monitored by HPLC, and their structures were proven using mass spectrometry. Cytotoxicity and antiproliferative effects were studied using 3T3 NRU and MTT tests, respectively. For determination of antimicrobial activity, the disc-diffusion method was used. Hydrolytic stability at three pH values, which mimic the physiological pH in the body, was investigated by means of the HPLC technique. (3) Results: A good selective index against MCF-7 tumor cell lines, combined with good cytotoxicity and antiproliferative properties, was revealed for conjugates NphtG-(KLAKLAK)2-NH2 and Caf-(KLAKLAK)2-NH2. The same compounds showed very good antifungal properties and complete hydrolytic stability for 72 h. The compound Caf-(KLβ-AKLβ-AK)2-NH2 containing β-Ala in its structures exhibited good antimicrobial activity against Escherichia coli K12 407 and Bacillus subtilis 3562, in combination with very good antiproliferative and cytotoxic properties, as well as hydrolytic stability. (4) Conclusions: The obtained results reveal that all synthesized conjugates could be useful for medical practice as anticancer or antimicrobial agents.
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Affiliation(s)
- Sirine Jaber
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd, 1756 Sofia, Bulgaria; (S.J.); (V.N.); (T.F.); (N.G.); (E.N.); (V.K.)
| | - Veronica Nemska
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd, 1756 Sofia, Bulgaria; (S.J.); (V.N.); (T.F.); (N.G.); (E.N.); (V.K.)
| | - Ivan Iliev
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 25 A, 1113 Sofia, Bulgaria; (I.I.); (E.I.)
| | - Elena Ivanova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 25 A, 1113 Sofia, Bulgaria; (I.I.); (E.I.)
| | - Tsvetelina Foteva
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd, 1756 Sofia, Bulgaria; (S.J.); (V.N.); (T.F.); (N.G.); (E.N.); (V.K.)
| | - Nelly Georgieva
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd, 1756 Sofia, Bulgaria; (S.J.); (V.N.); (T.F.); (N.G.); (E.N.); (V.K.)
| | - Ivan Givechev
- Testing Center Global Test Ltd., 31 Krushovski vrah Street, 1618 Sofia, Bulgaria;
| | - Emilia Naydenova
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd, 1756 Sofia, Bulgaria; (S.J.); (V.N.); (T.F.); (N.G.); (E.N.); (V.K.)
| | - Veronika Karadjova
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd, 1756 Sofia, Bulgaria; (S.J.); (V.N.); (T.F.); (N.G.); (E.N.); (V.K.)
| | - Dancho Danalev
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd, 1756 Sofia, Bulgaria; (S.J.); (V.N.); (T.F.); (N.G.); (E.N.); (V.K.)
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104
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105
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Calatrava-Pérez E, Marchetti LA, McManus GJ, Lynch DM, Elmes RBP, Williams DC, Gunnlaugsson T, Scanlan EM. Real-Time Multi-Photon Tracking and Bioimaging of Glycosylated Theranostic Prodrugs upon Specific Enzyme Triggered Release. Chemistry 2021; 28:e202103858. [PMID: 34820925 DOI: 10.1002/chem.202103858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Indexed: 01/22/2023]
Abstract
Real-time tracking of prodrug uptake, delivery and activation in vivo represents a major challenge for prodrug development. Herein, we demonstrate the use of novel glycosylated theranostics of the cancer pharmacophore Amonafide in highly-selective, enzymatic triggered release. We show that the use of endogenous enzymes for activated release of the therapeutic component can be observed, in real time, and monitored using one and two-photon bioimaging, offering unique insight into the prodrug pharmacokinetic profile. Furthermore, we demonstrate that the potent cytotoxicity of Amonafide is preserved using this targeted approach.
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Affiliation(s)
- Elena Calatrava-Pérez
- School of Chemistry Trinity Biomedical Sciences Institute (TBSI) Trinity College Dublin, The University of Dublin, D02 R590, Dublin 2, Ireland
| | - Luke A Marchetti
- Chemistry Department, Science Building Maynooth University, National University of Ireland, Maynooth, Co. Kildare, Ireland.,Maynooth University Human Health Research Institute Maynooth University, National University of Ireland, Maynooth, Co. Kildare, Ireland
| | - Gavin J McManus
- School of Biochemistry and Immunology and Trinity Biomedical Sciences Institute (TBSI) Trinity College Dublin, The University of Dublin, D02 R590, Dublin 2, Ireland
| | - Dylan M Lynch
- School of Chemistry Trinity Biomedical Sciences Institute (TBSI) Trinity College Dublin, The University of Dublin, D02 R590, Dublin 2, Ireland
| | - Robert B P Elmes
- Chemistry Department, Science Building Maynooth University, National University of Ireland, Maynooth, Co. Kildare, Ireland.,Maynooth University Human Health Research Institute Maynooth University, National University of Ireland, Maynooth, Co. Kildare, Ireland
| | - D Clive Williams
- School of Biochemistry and Immunology and Trinity Biomedical Sciences Institute (TBSI) Trinity College Dublin, The University of Dublin, D02 R590, Dublin 2, Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistry Trinity Biomedical Sciences Institute (TBSI) Trinity College Dublin, The University of Dublin, D02 R590, Dublin 2, Ireland
| | - Eoin M Scanlan
- School of Chemistry Trinity Biomedical Sciences Institute (TBSI) Trinity College Dublin, The University of Dublin, D02 R590, Dublin 2, Ireland
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106
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Pham TC, Nguyen VN, Choi Y, Lee S, Yoon J. Recent Strategies to Develop Innovative Photosensitizers for Enhanced Photodynamic Therapy. Chem Rev 2021; 121:13454-13619. [PMID: 34582186 DOI: 10.1021/acs.chemrev.1c00381] [Citation(s) in RCA: 567] [Impact Index Per Article: 189.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review presents a robust strategy to design photosensitizers (PSs) for various species. Photodynamic therapy (PDT) is a photochemical-based treatment approach that involves the use of light combined with a light-activated chemical, referred to as a PS. Attractively, PDT is one of the alternatives to conventional cancer treatment due to its noninvasive nature, high cure rates, and low side effects. PSs play an important factor in photoinduced reactive oxygen species (ROS) generation. Although the concept of photosensitizer-based photodynamic therapy has been widely adopted for clinical trials and bioimaging, until now, to our surprise, there has been no relevant review article on rational designs of organic PSs for PDT. Furthermore, most of published review articles in PDT focused on nanomaterials and nanotechnology based on traditional PSs. Therefore, this review aimed at reporting recent strategies to develop innovative organic photosensitizers for enhanced photodynamic therapy, with each example described in detail instead of providing only a general overview, as is typically done in previous reviews of PDT, to provide intuitive, vivid, and specific insights to the readers.
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Affiliation(s)
- Thanh Chung Pham
- Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, Korea
| | - Van-Nghia Nguyen
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
| | - Yeonghwan Choi
- Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, Korea
| | - Songyi Lee
- Department of Chemistry, Pukyong National University, Busan 48513, Korea.,Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, Korea
| | - Juyoung Yoon
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
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107
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A new sensitive “turn-on” fluorescent probe based on naphthalimide: Application in visual recognition of hydrogen sulfide in environmental samples and living cells. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113491] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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108
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Oshchepkov AS, Reznichenko O, Xu D, Morozov BS, Granzhan A, Kataev EA. Dye-functionalized phosphate-binding macrocycles: from nucleotide to G-quadruplex recognition and "turn-on" fluorescence sensing. Chem Commun (Camb) 2021; 57:10632-10635. [PMID: 34581337 DOI: 10.1039/d1cc04096k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A novel strategy to design "turn-on" fluorescent receptors for G-quadruplexes of DNA is presented, which relies on the connection of phosphate binding macrocycles (PBM) with naphthalimide dyes. A new PBM-dye family was synthesized and evaluated in terms of binding and detection of nucleotides and DNA G-quadruplexes of different topologies.
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Affiliation(s)
- Aleksandr S Oshchepkov
- Department of Chemistry and Pharmacy, University Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany. .,Institute of Chemistry, Technische Universität Chemnitz, 09107 Chemnitz, Germany
| | - Oksana Reznichenko
- CNRS UMR9187, INSERM U1196, Institut Curie, Université Paris Saclay, Bât. 110, Centre Universitaire Paris Sud, F-91405 Orsay, France
| | - Dan Xu
- Institute of Chemistry, Technische Universität Chemnitz, 09107 Chemnitz, Germany
| | - Boris S Morozov
- Department of Chemistry and Pharmacy, University Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany. .,Institute of Chemistry, Technische Universität Chemnitz, 09107 Chemnitz, Germany
| | - Anton Granzhan
- CNRS UMR9187, INSERM U1196, Institut Curie, Université Paris Saclay, Bât. 110, Centre Universitaire Paris Sud, F-91405 Orsay, France
| | - Evgeny A Kataev
- Department of Chemistry and Pharmacy, University Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany. .,CNRS UMR9187, INSERM U1196, Institut Curie, Université Paris Saclay, Bât. 110, Centre Universitaire Paris Sud, F-91405 Orsay, France
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109
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Reactive Oxygen Species Mediate 6c-Induced Mitochondrial and Lysosomal Dysfunction, Autophagic Cell Death, and DNA Damage in Hepatocellular Carcinoma. Int J Mol Sci 2021; 22:ijms222010987. [PMID: 34681647 PMCID: PMC8536041 DOI: 10.3390/ijms222010987] [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: 08/22/2021] [Revised: 09/29/2021] [Accepted: 10/07/2021] [Indexed: 11/17/2022] Open
Abstract
Increasing the level of reactive oxygen species (ROS) in cancer cells has been suggested as a viable approach to cancer therapy. Our previous study has demonstrated that mitochondria-targeted flavone-naphthalimide-polyamine conjugate 6c elevates the level of ROS in cancer cells. However, the detailed role of ROS in 6c-treated cancer cells is not clearly stated. The biological effects and in-depth mechanisms of 6c in cancer cells need to be further investigated. In this study, we confirmed that mitochondria are the main source of 6c-induced ROS, as demonstrated by an increase in 2',7'-dichlorodihydrofluorescein diacetate (DCFH-DA) and MitoSox fluorescence. Compound 6c-induced mitochondrial ROS caused mitochondrial dysfunction and lysosomal destabilization confirmed by absolute quantitation (iTRAQ)-based comparative proteomics. Compound 6c-induced metabolic pathway dysfunction and lysosomal destabilization was attenuated by N-acetyl-L-cysteine (NAC). iTRAQ-based comparative proteomics showed that ROS regulated the expression of 6c-mediated proteins, and treatment with 6c promoted the formation of autophagosomes depending on ROS. Compound 6c-induced DNA damage was characterized by comet assay, p53 phosphorylation, and γH2A.X, which was diminished by pretreatment with NAC. Compound 6c-induced cell death was partially reversed by 3-methyladenine (3-MA), bafilomycin (BAF) A1, and NAC, respectively. Taken together, the data obtained in our study highlighted the involvement of mitochondrial ROS in 6c-induced autophagic cell death, mitochondrial and lysosomal dysfunction, and DNA damage.
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110
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Murphy SA, Phelan C, Shanmugaraju S, Blasco S, Gunnlaugsson T. Fluorescent 3-amino-1,8-naphthalimide Tröger’s bases (3-amino-TBNaps) incorporating protected α-amino acids. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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111
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Yu H, Guo Y, Zhu W, Havener K, Zheng X. Recent advances in 1,8-naphthalimide-based small-molecule fluorescent probes for organelles imaging and tracking in living cells. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214019] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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112
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Mishra S, Singh AK. Optical sensors for water and humidity and their further applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214063] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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113
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Kotowicz S, Korzec M, Malarz K, Krystkowska A, Mrozek-Wilczkiewicz A, Golba S, Siwy M, Maćkowski S, Schab-Balcerzak E. Luminescence and Electrochemical Activity of New Unsymmetrical 3-Imino-1,8-naphthalimide Derivatives. MATERIALS (BASEL, SWITZERLAND) 2021; 14:5504. [PMID: 34639899 PMCID: PMC8509721 DOI: 10.3390/ma14195504] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/12/2021] [Accepted: 09/18/2021] [Indexed: 11/16/2022]
Abstract
A new series of 1,8-naphtalimides containing an imine bond at the 3-position of the naphthalene ring was synthesized using 1H, 13C NMR, FTIR, and elementary analysis. The impact of the substituent in the imine linkage on the selected properties and bioimaging of the synthesized compounds was studied. They showed a melting temperature in the range of 120-164 °C and underwent thermal decomposition above 280 °C. Based on cyclic and differential pulse voltammetry, the electrochemical behavior of 1,8-naphtalimide derivatives was evaluated. The electrochemical reduction and oxidation processes were observed. The compounds were characterized by a low energy band gap (below 2.60 eV). Their photoluminescence activities were investigated in solution considering the solvent effect, in the aggregated and thin film, and a mixture of poly(N-vinylcarbazole) (PVK) and 2-tert-butylphenyl-5-biphenyl-1,3,4-oxadiazole (PBD) (50:50 wt.%). They demonstrated low emissions due to photoinduced electron transport (PET) occurring in the solution and aggregation, which caused photoluminescence quenching. Some of them exhibited light emission as thin films. They emitted light in the range of 495 to 535 nm, with photoluminescence quantum yield at 4%. Despite the significant overlapping of its absorption range with emission of the PVK:PBD, incomplete Förster energy transfer from the matrix to the luminophore was found. Moreover, its luminescence ability induced by external voltage was tested in the diode with guest-host configuration. The possibility of compound hydrolysis due to the presence of the imine bond was also discussed, which could be of importance in biological studies that evaluate 3-imino-1,8-naphatalimides as imaging tools and fluorescent materials for diagnostic applications and molecular bioimaging.
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Affiliation(s)
- Sonia Kotowicz
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland;
| | - Mateusz Korzec
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland;
| | - Katarzyna Malarz
- A. Chelkowski Institute of Physics, University of Silesia in Katowice, 1A 75 Pulku Piechoty Str., 41-500 Chorzow, Poland; (K.M.); (A.K.); (A.M.-W.)
| | - Aleksandra Krystkowska
- A. Chelkowski Institute of Physics, University of Silesia in Katowice, 1A 75 Pulku Piechoty Str., 41-500 Chorzow, Poland; (K.M.); (A.K.); (A.M.-W.)
| | - Anna Mrozek-Wilczkiewicz
- A. Chelkowski Institute of Physics, University of Silesia in Katowice, 1A 75 Pulku Piechoty Str., 41-500 Chorzow, Poland; (K.M.); (A.K.); (A.M.-W.)
| | - Sylwia Golba
- Institute of Materials Science, University of Silesia, 1A 75 Pulku Piechoty Str., 41-500 Chorzow, Poland;
| | - Mariola Siwy
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland;
| | - Sebastian Maćkowski
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, 5 Grudziadzka Str., 87-100 Torun, Poland;
| | - Ewa Schab-Balcerzak
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland;
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland;
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114
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115
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Wang Y, Jiang H, Liu X, Xu J, Gao Y, Finney NS. A palate of fluorescent corannulene derivatives: synthesis, spectroscopic properties, and bio-imaging application. Chem Commun (Camb) 2021; 57:5818-5821. [PMID: 34002184 DOI: 10.1039/d1cc02307a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Reported here is a palate of fluorescent corannulene derivatives suitable for cellular imaging. They are derived from "tagging" corannulene with known fluorophores. The tagged corannulenes display strong fluorescence (φF > 0.25 in MeOH), good photostability and long emission wavelength (500 nm to 600 nm). Cell staining experiments indicate that several of them have excellent cell membrane permeability and targeting ability. In addition, we have found an unexpected, highly efficient energy transfer from corannulene to the pendant fluorophore. This has implications for many areas of corannulene research.
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Affiliation(s)
- Yali Wang
- School of Pharmaceutical Sciences and Technology, Health Sciences Platform, Tianjin University, 92 Weijin Road, Nankai, Tianjin 300072, China.
| | - Haiyan Jiang
- School of Pharmaceutical Sciences and Technology, Health Sciences Platform, Tianjin University, 92 Weijin Road, Nankai, Tianjin 300072, China.
| | - Xueling Liu
- School of Pharmaceutical Sciences and Technology, Health Sciences Platform, Tianjin University, 92 Weijin Road, Nankai, Tianjin 300072, China.
| | - Jun Xu
- School of Pharmaceutical Sciences and Technology, Health Sciences Platform, Tianjin University, 92 Weijin Road, Nankai, Tianjin 300072, China.
| | - Yan Gao
- School of Pharmaceutical Sciences and Technology, Health Sciences Platform, Tianjin University, 92 Weijin Road, Nankai, Tianjin 300072, China.
| | - Nathaniel S Finney
- School of Pharmaceutical Sciences and Technology, Health Sciences Platform, Tianjin University, 92 Weijin Road, Nankai, Tianjin 300072, China.
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116
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Hendi Z, Jamali S, Chabok SMJ, Jamjah A, Samouei H, Jamshidi Z. Bis-N-Heterocyclic Carbene Complexes of Coinage Metals Containing Four Naphthalimide Units: A Structure-Emission Properties Relationship Study. Inorg Chem 2021; 60:12924-12933. [PMID: 34403580 DOI: 10.1021/acs.inorgchem.1c01302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Naphthalimide derivatives provide highly versatile self-assembled systems and aggregated forms with fascinating emission properties that make them potential candidates for many applications such as bioimaging and sensing. Although various aggregated species of naphthalimide derivatives have been well documented, little is known about the correlation between their structure and photophysical properties. Here the preparation of a series of tetrameric naphthalimide molecules in which naphthalimide units are linked by bis-N-heterocyclic carbene complexes of coinage metals is described. An in-depth structural investigation into these tetramers has been carried out in solution and the solid state using spectroscopic methods, X-ray crystallography, and computational methods. The experimental and calculated data indicate that the magnitude of the intramolecular interchromophoric π-interactions increases either by an increase in the metal ionic radius or on going from the solid to the solution state. These tetrameric naphthalimide compounds show intramolecular excimeric emissions in the solid and solution phases. However, the quantum yield efficiencies of these excimeric emissions show a trend similar to that for the intramolecular π-interactions either by going from the solution to the solid state or with an increase in the metal ionic radius. Surprisingly, the amine derivative analogues of the silver(I) compound showed an unusual increase in the emission quantum yield efficiency to 92% in solution due to intramolecular hydrogen bonds between amine substituents on adjacent naphthalimde units.
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Affiliation(s)
- Zohreh Hendi
- Department of Chemistry, Sharif University of Technology, P.O. Box 11155-3516, Tehran, Iran
| | - Sirous Jamali
- Department of Chemistry, Sharif University of Technology, P.O. Box 11155-3516, Tehran, Iran
| | - Seyed Mohamad J Chabok
- Department of Chemistry, Sharif University of Technology, P.O. Box 11155-3516, Tehran, Iran
| | - Ali Jamjah
- Department of Chemistry, Sharif University of Technology, P.O. Box 11155-3516, Tehran, Iran
| | - Hamidreza Samouei
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - Zahra Jamshidi
- Department of Chemistry, Sharif University of Technology, P.O. Box 11155-3516, Tehran, Iran
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117
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Yildirim A, Karakurt S, Yilmaz M. Synthesized Two New Water‐Soluble Fluorescents Calix[4]arene 4‐sulfo‐1,8‐naphthalimide Derivatives Inhibit Proliferation of Human Colorectal Carcinoma Cells. ChemistrySelect 2021. [DOI: 10.1002/slct.202101806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ayse Yildirim
- Department of Chemistry Selcuk University 142075 Konya Turkey
| | - Serdar Karakurt
- Department of Biochemistry Selcuk University 142075 Konya Turkey
| | - Mustafa Yilmaz
- Department of Chemistry Selcuk University 142075 Konya Turkey
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118
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Shi H, Kasparkova J, Soulié C, Clarkson GJ, Imberti C, Novakova O, Paterson MJ, Brabec V, Sadler PJ. DNA-Intercalative Platinum Anticancer Complexes Photoactivated by Visible Light. Chemistry 2021; 27:10711-10716. [PMID: 34046954 PMCID: PMC8361943 DOI: 10.1002/chem.202101168] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Indexed: 12/14/2022]
Abstract
Photoactivatable agents offer the prospect of highly selective cancer therapy with low side effects and novel mechanisms of action that can combat current drug resistance. 1,8-Naphthalimides with their extended π system can behave as light-harvesting groups, fluorescent probes and DNA intercalators. We conjugated N-(carboxymethyl)-1,8-naphthalimide (gly-R-Nap) with an R substituent on the naphthyl group to photoactive diazido PtIV complexes to form t,t,t-[Pt(py)2 (N3 )2 (OH)(gly-R-Nap)], R=H (1), 3-NO2 (2) or 4-NMe2 (3). They show enhanced photo-oxidation, cellular accumulation and promising photo-cytotoxicity in human A2780 ovarian, A549 lung and PC3 prostate cancer cells with visible light activation, and low dark cytotoxicity. Complexes 1 and 2 exhibit pre-intercalation into DNA, resulting in enhanced photo-induced DNA crosslinking. Complex 3 has a red-shifted absorption band at 450 nm, allowing photoactivation and photo-cytotoxicity with green light.
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Affiliation(s)
- Huayun Shi
- Department of ChemistryUniversity of WarwickCoventryCV4 7ALUK
| | - Jana Kasparkova
- Institute of BiophysicsCzech Academy of SciencesKralovopolska 13561265BrnoCzech Republic
| | - Clément Soulié
- Institute of Chemical SciencesSchool of Engineering & Physical SciencesHeriot-Watt UniversityEdinburghEH14 4ASUK
| | - Guy J. Clarkson
- Department of ChemistryUniversity of WarwickCoventryCV4 7ALUK
| | - Cinzia Imberti
- Department of ChemistryUniversity of WarwickCoventryCV4 7ALUK
| | - Olga Novakova
- Institute of BiophysicsCzech Academy of SciencesKralovopolska 13561265BrnoCzech Republic
| | - Martin J. Paterson
- Institute of Chemical SciencesSchool of Engineering & Physical SciencesHeriot-Watt UniversityEdinburghEH14 4ASUK
| | - Viktor Brabec
- Institute of BiophysicsCzech Academy of SciencesKralovopolska 13561265BrnoCzech Republic
| | - Peter J. Sadler
- Department of ChemistryUniversity of WarwickCoventryCV4 7ALUK
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Wang SS, Du SY, He X, Qi YM, Li XL, Rong RX, Cao ZR, Wang KR. Nucleus-targeting imaging and enhanced cytotoxicity based on naphthalimide derivatives. Bioorg Chem 2021; 115:105188. [PMID: 34314915 DOI: 10.1016/j.bioorg.2021.105188] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 12/13/2022]
Abstract
Organelles possess critical biological effects in cellular processes. However, the relationship between organelle targeting and antitumour activity is a challenging issue. In this paper, a number of amide/acylhydrazine modified naphthalimide derivatives were designed and synthesized. Interestingly, amide modified naphthalimide derivatives NI-A-NH and NI-C-NH with (R)-piperdine and (S)-pyrrolidine functionalization exhibited enhanced cytotoxicity compared with acylhydrazine modified derivatives NI-A-2NH and NI-C-2NH. However, acylhydrazine modified derivatives NI-B-2NH and NI-D-2NH with (S)-piperdine and achiral piperdine conjugates possessed better cytotoxicity than NI-B-NH and NI-D-NH with amide modifications. Fluorescence imaging, DNA binding interactions and cell cycle analyses were further completed to clarify that the nucleus-targeting effects showed enhanced cytotoxic activity, strong DNA binding and the blocking of cells in S phase. These results provide a preliminary theoretical basis for the further design of organelle-targeting antitumour drugs.
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Affiliation(s)
- Shan-Shan Wang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education), Key Laboratory of Chemical Biology of Hebei Province, Baoding 071002, PR China; Department of Immunology, School of Basic Medical Science, Hebei University, Baoding 071002, PR China
| | - Shao-Ying Du
- Nursing School, Hebei University, Baoding 071002, PR China
| | - Xu He
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China; Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education), Key Laboratory of Chemical Biology of Hebei Province, Baoding 071002, PR China
| | - Yu-Ming Qi
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China; Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education), Key Laboratory of Chemical Biology of Hebei Province, Baoding 071002, PR China
| | - Xiao-Liu Li
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China; Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education), Key Laboratory of Chemical Biology of Hebei Province, Baoding 071002, PR China.
| | - Rui-Xue Rong
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education), Key Laboratory of Chemical Biology of Hebei Province, Baoding 071002, PR China; Department of Immunology, School of Basic Medical Science, Hebei University, Baoding 071002, PR China.
| | - Zhi-Ran Cao
- Department of Immunology, School of Basic Medical Science, Hebei University, Baoding 071002, PR China.
| | - Ke-Rang Wang
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China; Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education), Key Laboratory of Chemical Biology of Hebei Province, Baoding 071002, PR China.
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Fudickar W, Bauch M, Ihmels H, Linker T. DNA-Triggered Enhancement of Singlet Oxygen Production by Pyridinium Alkynylanthracenes. Chemistry 2021; 27:13591-13604. [PMID: 34263955 DOI: 10.1002/chem.202101918] [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] [Received: 06/01/2021] [Indexed: 12/23/2022]
Abstract
There is an ongoing interest in 1 O2 sensitizers, whose activity is selectively controlled by their interaction with DNA. To this end, we synthesized three isomeric pyridinium alkynylanthracenes 2 o-p and a water-soluble trapping reagent for 1 O2 . In water and in the absence of DNA, these dyes show a poor efficiency to sensitize the photooxygenation of the trapping reagent as they decompose due to electron transfer processes. In contrast, in the presence of DNA 1 O2 is generated from the excited DNA-bound ligand. The interactions of 2 o-p with DNA were investigated by thermal DNA melting studies, UV/vis and fluorescence spectroscopy, and linear and circular dichroism spectroscopy. Our studies revealed an intercalative binding with an orientation of the long pyridyl-alkynyl axis parallel to the main axis of the DNA base pairs. In the presence of poly(dA : dT), all three isomers show an enhanced formation of singlet oxygen, as indicated by the reaction of the latter with the trapping reagent. With green light irradiation of isomer 2 o in poly(dA : dT), the conversion rate of the trapping reagent is enhanced by a factor >10. The formation of 1 O2 was confirmed by control experiments under anaerobic conditions, in deuterated solvents, or by addition of 1 O2 quenchers. When bound to poly(dG : dC), the opposite effect was observed only for isomers 2 o and 2 m, namely the trapping reagent reacted significantly slower. Overall, we showed that pyridinium alkynylanthracenes are very useful intercalators, that exhibit an enhanced photochemical 1 O2 generation in the DNA-bound state.
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Affiliation(s)
- Werner Fudickar
- Department of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany
| | - Marcel Bauch
- Department of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany
| | - Heiko Ihmels
- Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Str. 2, 57068, Siegen, Germany
| | - Torsten Linker
- Department of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany
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Dias GG, Paz ERS, Nunes MP, Carvalho RL, Rodrigues MO, Rodembusch FS, da Silva Júnior EN. Imidazoles and Oxazoles from Lapachones and Phenanthrene-9,10-dione: A Journey through their Synthesis, Biological Studies, and Optical Applications. CHEM REC 2021; 21:2702-2738. [PMID: 34170622 DOI: 10.1002/tcr.202100138] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/10/2021] [Accepted: 06/11/2021] [Indexed: 11/06/2022]
Abstract
Diverse structural frameworks are found in natural compounds and are well known for their chemical and biological properties; such compounds include the imidazoles and oxazoles. Researchers worldwide are continually working on the development of methods for synthesizing new molecules bearing these basic moiety and evaluating their properties and applications. To expand the knowledge related to azoles, this review summarizes important examples of imidazole and oxazole derivatives from 1,2-dicarbonyl compounds, such as lapachones and phenanthrene-9,10-diones, not only regarding their synthesis and biological applications but also their photophysical properties and uses. The data concerning the latter are particularly scarce in the literature, which leads to underestimation of the potential applications that can be envisaged for these compounds.
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Affiliation(s)
- Gleiston G Dias
- Department of Chemistry, Institute of Exact Sciences, Federal University of Minas Gerais, UFMG, 31270-901, Belo Horizonte, MG, Brazil
| | - Esther R S Paz
- Department of Chemistry, Institute of Exact Sciences, Federal University of Minas Gerais, UFMG, 31270-901, Belo Horizonte, MG, Brazil
| | - Mateus P Nunes
- Department of Chemistry, Institute of Exact Sciences, Federal University of Minas Gerais, UFMG, 31270-901, Belo Horizonte, MG, Brazil
| | - Renato L Carvalho
- Department of Chemistry, Institute of Exact Sciences, Federal University of Minas Gerais, UFMG, 31270-901, Belo Horizonte, MG, Brazil
| | - Marieli O Rodrigues
- Department of Organic Chemistry, Chemistry Institute, Federal University of Rio Grande do Sul, UFRGS, 91501-970, Porto Alegre, RS, Brazil
| | - Fabiano S Rodembusch
- Department of Organic Chemistry, Chemistry Institute, Federal University of Rio Grande do Sul, UFRGS, 91501-970, Porto Alegre, RS, Brazil
| | - Eufrânio N da Silva Júnior
- Department of Chemistry, Institute of Exact Sciences, Federal University of Minas Gerais, UFMG, 31270-901, Belo Horizonte, MG, Brazil
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Sun Z, Ni Y, Prakasam T, Liu W, Wu H, Zhang Z, Di H, Baldridge KK, Trabolsi A, Olson MA. The Unusual Photochromic and Hydrochromic Switching Behavior of Cellulose-Embedded 1,8-Naphthalimide-Viologen Derivatives in the Solid-State. Chemistry 2021; 27:9360-9371. [PMID: 33831265 DOI: 10.1002/chem.202100601] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Indexed: 01/25/2023]
Abstract
Stimuli-responsive chromic materials such as photochromics, hydrochromics, thermochromics, and electrochromics have a long history of capturing the attention of scientists due to their potential industrial applications and novelty in popular culture. However, hybrid chromic materials that combine two or more stimuli-triggered color changing properties are not so well known. Herein, we report a design strategy that has led to a series of emissive 1,8-naphthalimide-viologen dyads which exhibit unusual dual photochromic and hydrochromic switching behavior in the solid-state when embedded in a cellulose matrix. This behavior manifests as reversible solid state fluorescence hydrochromism upon changes in atmospheric relative humidity (RH), and reversible solid state photochromism upon generation of a cellulose-stabilized viologen radical cation. In this design strategy, the bipyridinium unit serves as both a water-sensitive receptor for the hydrochromic fluorophore-receptor system, and a photochromic group, capable of eliciting its own visible colorimetric response, generating a fluorescence quenching radical cation with prolonged exposure to ultraviolet (UV) light. These dyes can be inkjet-printed onto cellulose paper or drop-cast as cellulose powder-based films and can be unidirectionally cycled between three different states which can be characteristically visualized under UV light or visible light. The material's photochromism, hydrochromism, and underlying mechanism of action was investigated using computational analysis, dynamic vapor sorption/desorption isotherms, electron paramagnetic resonance spectroscopy, and variable humidity UV-Vis adsorption and fluorescence spectroscopies.
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Affiliation(s)
- Zhimin Sun
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Yanhai Ni
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Thirumurugan Prakasam
- Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, United Arab Emirates
| | - Wenqi Liu
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, Illinois, USA
| | - Huang Wu
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, Illinois, USA
| | - Zhao Zhang
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Haiting Di
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Kim K Baldridge
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Ali Trabolsi
- Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, United Arab Emirates
| | - Mark A Olson
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China.,Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, Illinois, USA
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Agrahari AK, Bose P, Jaiswal MK, Rajkhowa S, Singh AS, Hotha S, Mishra N, Tiwari VK. Cu(I)-Catalyzed Click Chemistry in Glycoscience and Their Diverse Applications. Chem Rev 2021; 121:7638-7956. [PMID: 34165284 DOI: 10.1021/acs.chemrev.0c00920] [Citation(s) in RCA: 154] [Impact Index Per Article: 51.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Copper(I)-catalyzed 1,3-dipolar cycloaddition between organic azides and terminal alkynes, commonly known as CuAAC or click chemistry, has been identified as one of the most successful, versatile, reliable, and modular strategies for the rapid and regioselective construction of 1,4-disubstituted 1,2,3-triazoles as diversely functionalized molecules. Carbohydrates, an integral part of living cells, have several fascinating features, including their structural diversity, biocompatibility, bioavailability, hydrophilicity, and superior ADME properties with minimal toxicity, which support increased demand to explore them as versatile scaffolds for easy access to diverse glycohybrids and well-defined glycoconjugates for complete chemical, biochemical, and pharmacological investigations. This review highlights the successful development of CuAAC or click chemistry in emerging areas of glycoscience, including the synthesis of triazole appended carbohydrate-containing molecular architectures (mainly glycohybrids, glycoconjugates, glycopolymers, glycopeptides, glycoproteins, glycolipids, glycoclusters, and glycodendrimers through regioselective triazole forming modular and bio-orthogonal coupling protocols). It discusses the widespread applications of these glycoproducts as enzyme inhibitors in drug discovery and development, sensing, gelation, chelation, glycosylation, and catalysis. This review also covers the impact of click chemistry and provides future perspectives on its role in various emerging disciplines of science and technology.
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Affiliation(s)
- Anand K Agrahari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Priyanka Bose
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Manoj K Jaiswal
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Sanchayita Rajkhowa
- Department of Chemistry, Jorhat Institute of Science and Technology (JIST), Jorhat, Assam 785010, India
| | - Anoop S Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Srinivas Hotha
- Department of Chemistry, Indian Institute of Science and Engineering Research (IISER), Pune, Maharashtra 411021, India
| | - Nidhi Mishra
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Vinod K Tiwari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
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Hearn KN, Ashton TD, Acharya R, Feng Z, Gueven N, Pfeffer FM. Direct Amidation to Access 3-Amido-1,8-Naphthalimides Including Fluorescent Scriptaid Analogues as HDAC Inhibitors. Cells 2021; 10:1505. [PMID: 34203745 PMCID: PMC8232238 DOI: 10.3390/cells10061505] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/02/2021] [Accepted: 06/07/2021] [Indexed: 02/07/2023] Open
Abstract
Methodology to access fluorescent 3-amido-1,8-naphthalimides using direct Buchwald-Hartwig amidation is described. The protocol was successfully used to couple a number of substrates (including an alkylamide, an arylamide, a lactam and a carbamate) to 3-bromo-1,8-naphthalimide in good yield. To further exemplify the approach, a set of scriptaid analogues with amide substituents at the 3-position were prepared. The new compounds were more potent than scriptaid at a number of histone deacetylase (HDAC) isoforms including HDAC6. Activity was further confirmed in a whole cell tubulin deacetylation assay where the inhibitors were more active than the established HDAC6 selective inhibitor Tubastatin. The optical properties of these new, highly active, compounds make them amenable to cellular imaging studies and theranostic applications.
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Affiliation(s)
- Kyle N. Hearn
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, VIC 3216, Australia
- STEM College, RMIT University, Melbourne, VIC 3000, Australia;
| | - Trent D. Ashton
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, VIC 3216, Australia
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia;
- Department of Medical Biology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Rameshwor Acharya
- School of Pharmacy and Pharmacology, College of Health and Medicine, University of Tasmania, Hobart, TAS 7001, Australia; (R.A.); (Z.F.); (N.G.)
| | - Zikai Feng
- School of Pharmacy and Pharmacology, College of Health and Medicine, University of Tasmania, Hobart, TAS 7001, Australia; (R.A.); (Z.F.); (N.G.)
| | - Nuri Gueven
- School of Pharmacy and Pharmacology, College of Health and Medicine, University of Tasmania, Hobart, TAS 7001, Australia; (R.A.); (Z.F.); (N.G.)
| | - Frederick M. Pfeffer
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, VIC 3216, Australia
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Hayani S, Thiruvalluvar AA, Baba YF, Rodi YK, Muthunatesan S, Chahdi FO, Mague JT, Ibrahimi BE, Anouar EH, Sebbar NK, Essassi EM. Synthesis, structure elucidation, Hirshfeld surface analysis, DFT, molecular docking and Monte Carlo simulation of new quinoline-4-carboxylate derivatives. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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127
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Izawa H, Yasufuku F, Nokami T, Ifuku S, Saimoto H, Matsui T, Morihashi K, Sumita M. Unique Photophysical Properties of 1,8-Naphthalimide Derivatives: Generation of Semi-stable Radical Anion Species by Photo-Induced Electron Transfer from a Carboxy Group. ACS OMEGA 2021; 6:13456-13465. [PMID: 34056493 PMCID: PMC8158823 DOI: 10.1021/acsomega.1c01685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
The development of anion sensors for selective detection of a specific anion is a crucial research topic. We previously reported a selective photo-induced colorimetric reaction of 1-methyl-3-(N-(1,8-naphthalimidyl)ethyl)imidazolium (MNEI) having a cationic receptor in the presence of molecules having multiple carboxy groups, such as succinate, citrate, and polyacrylate. However, the mechanism underlying this reaction was not clarified. Here, we investigate the photo-induced colorimetric reaction of N-[2-(trimethylammonium)ethyl]-1,8-naphthalimide (TENI), which has a different cationic receptor from MNEI and undergoes the photo-induced colorimetric reaction, and its analogues to clarify the reaction mechanism. The TENI analogues having substituents on the naphthalene ring provide important evidence, suggesting that the colorimetric chemical species were radical anions generated via photo-induced electron transfer from carboxylate to the naphthalimide derivative. The generation of the naphthalimide-based radical anion is verified by 1H NMR and cyclic voltammetry analyses, and photo-reduction of methylene blue is mediated by TENI. In addition, the role of the cationic receptor for the photo-induced colorimetric reaction is investigated with TENI analogues having different hydrophilic groups instead of the trimethylammonium group. Interestingly, the photo-induced colorimetric reaction is observed in a nonionic analogue having a polyethylene glycol group, indicating that the colorimetric reaction does not require a cationic receptor. On the other hand, we reveal that the trimethylammonium group stabilizes the radical anion species. These generation and stabilization phenomena of naphthalimide-based radical anion species will contribute to the development of sophisticated detection systems specific for carboxylate.
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Affiliation(s)
- Hironori Izawa
- Department
of Chemistry and Biotechnology, Faculty of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 680-8550, Japan
- Center
for Research on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-Minami, Tottori 680-8550, Japan
| | - Fumika Yasufuku
- Graduate
School of Sustainable Science, Tottori University, 4-101 Koyama-Minami, Tottori 680-8550, Japan
| | - Toshiki Nokami
- Department
of Chemistry and Biotechnology, Faculty of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 680-8550, Japan
- Center
for Research on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-Minami, Tottori 680-8550, Japan
| | - Shinsuke Ifuku
- Department
of Chemistry and Biotechnology, Faculty of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 680-8550, Japan
- Center
for Research on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-Minami, Tottori 680-8550, Japan
| | - Hiroyuki Saimoto
- Department
of Chemistry and Biotechnology, Faculty of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 680-8550, Japan
- Center
for Research on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-Minami, Tottori 680-8550, Japan
| | - Toru Matsui
- Department
of Chemistry, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Kenji Morihashi
- Department
of Chemistry, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Masato Sumita
- Center
for Advanced Intelligence Project, RIKEN, Nihombashi 1-chome Mitsui Building, 15th Floor,
1-4-1 Nihonbashi, Chuo-ku, Tokyo 103-0027, Japan
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Jia J, Gao Y, Dang K, Guo X, Ding A. Naphthalimide‐modified dendrimers as efficient and low cytotoxic nucleic acid delivery vectors. POLYM INT 2021. [DOI: 10.1002/pi.6252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jingxian Jia
- Department of Chemistry Tangshan Normal University Tangshan China
| | - Yongguang Gao
- Department of Chemistry Tangshan Normal University Tangshan China
- School of Life Sciences Northwestern Polytechnical University Xi'an China
| | - Kai Dang
- School of Life Sciences Northwestern Polytechnical University Xi'an China
| | - Xiaosong Guo
- Department of Chemistry Tangshan Normal University Tangshan China
| | - Aixiang Ding
- College of Chemistry and Chemical Engineering Xinyang Normal University Xinyang China
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Cao X, Gao A, Hou JT, Yi T. Fluorescent supramolecular self-assembly gels and their application as sensors: A review. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213792] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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130
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Malik MS, Adil SF, Seddigi ZS, Morad M, Jassas RS, Thagafi II, Altass HM, Sajid Jamal QM, Riyaz S, Alsantali RI, Al-Warthan AA, Ansari MA, Ahmed SA. Molecular modelling assisted design of napthalimide-dihydropyrimidinone conjugates as potential cytotoxic agents. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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A naphthalimide-polyamine conjugate preferentially accumulates in hepatic carcinoma metastases as a lysosome-targeted antimetastatic agent. Eur J Med Chem 2021; 221:113469. [PMID: 33965862 DOI: 10.1016/j.ejmech.2021.113469] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 12/31/2022]
Abstract
Disseminated tumors lead to approximately 90% of cancer-associated deaths especially for hepatocellular carcinoma (HCC), indicating the imperative need of antimetastatic drugs and the ineffectiveness of current therapies. Recently polyamine derivatives have been identified as a promising prospect in dealing with metastatic tumors. Herein, a novel class of naphthalimide-polyamine conjugates 8a-8d, 13a-13c, 17 and 21 were synthesized and the mechanism was further determined. The polyamine conjugate 13b displayed remarkably elevated anti-tumor and anti-metastatic effects (76.01% and 75.02%) than the positive control amonafide (46.91% and 55.77%) at 5 mg/kg in vivo. The underlying molecular mechanism indicated that in addition to induce DNA damage by up-regulating p53 and γH2AX, 13b also targeted lysosome to modulate polyamine metabolism and function in a totally different way from that of amonafide. Furthermore, the HMGB1/p62/LC3II/LC3I and p53/SSAT/β-catenin pathways were mainly involved in the inhibition of 13b-induced HCC metastasis by targeting polyamine transporters (PTs) overexpressed in HCC. At last, 13b down-regulated the concentrations of Put, Spd and Spm by modulating polyamine metabolism key enzymes SSAT and PAO, which favored the suppression of fast growing tumor cells. Taken together, our study implies a promising strategy for naphthalimide conjugates to treat terminal cancer of HCC by targeting autophagy and tumor microenvironment with reduced toxicities and notable activities.
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Sen S, Perrin MW, Sedgwick AC, Lynch VM, Sessler JL, Arambula JF. Covalent and non-covalent albumin binding of Au(i) bis-NHCs via post-synthetic amide modification. Chem Sci 2021; 12:7547-7553. [PMID: 34163845 PMCID: PMC8171490 DOI: 10.1039/d1sc01055g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/24/2021] [Indexed: 12/21/2022] Open
Abstract
Recent decades have witnessed the emergence of Au(i) bis-N-heterocyclic carbenes (NHCs) as potential anticancer agents. However, these systems exhibit little interaction with serum proteins (e.g., human serum albumin), which presumably impacts their pharmacokinetic profile and tumor exposure. Anticancer drugs bound to human serum albumin (HSA) often benefit from significant advantages, including longer circulatory half-lives, tumor targeted delivery, and easier administration relative to the drug alone. In this work, we present Au(i) bis-NHCs complexes, 7 and 9, capable of binding to HSA. Complex 7 contains a reactive maleimide moiety for covalent protein conjugation, whereas its congener 9 contains a naphthalimide fluorophore for non-covalent binding. A similar drug motif was used in both cases. Complexes 7 and 9 were prepared from a carboxylic acid functionalized Au(i) bis-NHC (complex 2) using a newly developed post-synthetic amide functionalization protocol that allows coupling to both aliphatic and aromatic amines. Analytical, and in vitro techniques were used to confirm protein binding, as well as cellular uptake and antiproliferative activity in A549 human lung cancer cells. The present findings highlight a hitherto unexplored approach to modifying Au(i) bis-NHC drug candidates for protein ligation and serve to showcase the relative benefits of covalent and non-covalent HSA binding.
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Affiliation(s)
- Sajal Sen
- Department of Chemistry, The University of Texas at Austin 105 E 24th Street A5300 Austin TX 78712-1224 USA
| | - Mark W Perrin
- Department of Chemistry, The University of Texas at Austin 105 E 24th Street A5300 Austin TX 78712-1224 USA
| | - Adam C Sedgwick
- Department of Chemistry, The University of Texas at Austin 105 E 24th Street A5300 Austin TX 78712-1224 USA
| | - Vincent M Lynch
- Department of Chemistry, The University of Texas at Austin 105 E 24th Street A5300 Austin TX 78712-1224 USA
| | - Jonathan L Sessler
- Department of Chemistry, The University of Texas at Austin 105 E 24th Street A5300 Austin TX 78712-1224 USA
| | - Jonathan F Arambula
- Department of Chemistry, The University of Texas at Austin 105 E 24th Street A5300 Austin TX 78712-1224 USA
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Daubit IM, Wortmann S, Siegmund D, Hahn S, Nuernberger P, Metzler‐Nolte N. Unveiling Luminescent Ir I and Rh I N-Heterocyclic Carbene Complexes: Structure, Photophysical Specifics, and Cellular Localization in the Endoplasmic Reticulum. Chemistry 2021; 27:6783-6794. [PMID: 33755263 PMCID: PMC8252781 DOI: 10.1002/chem.202100375] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Indexed: 01/28/2023]
Abstract
Complexes of RhI and IrI of the [M(COD)(NHC)X] type (where M=Rh or Ir, COD=1,5-cyclooctadiene, NHC=N-heterocyclic carbene, and X=halide) have recently shown promising cytotoxic activities against several cancer cell lines. Initial mechanism of action studies provided some knowledge about their interaction with DNA and proteins. However, information about their cellular localization remains scarce owing to luminescence quenching within this complex type. Herein, the synthesis of two rare examples of luminescent RhI and IrI [M(COD)(NHC)I] complexes with 1,8-naphthalimide-based emitting ligands is reported. All new complexes are comprehensively characterized, including with single-crystal X-ray structures. Steric crowding in one derivative leads to two distinct rotamers in solution, which apparently can be distinguished both by pronounced NMR shifts and by their respective spectral and temporal emission signatures. When the photophysical properties of these new complexes are exploited for cellular imaging in HT-29 and PT-45 cancer cell lines, it is demonstrated that the complexes accumulate predominantly in the endoplasmic reticulum, which is an entirely new finding and provides the first insight into the cellular localization of such IrI (NHC) complexes.
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Affiliation(s)
- Isabelle Marie Daubit
- Faculty of Chemistry and BiochemistryInorganic Chemistry I—Bioinorganic ChemistryRuhr-Universität BochumUniversitätsstraße 15044780BochumGermany
| | - Svenja Wortmann
- Institut für Physikalische und Theoretische ChemieUniversität RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Daniel Siegmund
- Division EnergyFraunhofer UMSICHTOsterfelder Str. 346047OberhausenGermany
| | - Stephan Hahn
- Molecular GI OncologyRuhr-Universität BochumUniversitätsstraße 15044780BochumGermany
| | - Patrick Nuernberger
- Institut für Physikalische und Theoretische ChemieUniversität RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Nils Metzler‐Nolte
- Faculty of Chemistry and BiochemistryInorganic Chemistry I—Bioinorganic ChemistryRuhr-Universität BochumUniversitätsstraße 15044780BochumGermany
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Naphthalimide-Containing BP100 Leads to Higher Model Membranes Interactions and Antimicrobial Activity. Biomolecules 2021; 11:biom11040542. [PMID: 33917850 PMCID: PMC8068292 DOI: 10.3390/biom11040542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/26/2021] [Accepted: 04/06/2021] [Indexed: 11/17/2022] Open
Abstract
In a large variety of organisms, antimicrobial peptides (AMPs) are primary defenses against pathogens. BP100 (KKLFKKILKYL-NH2), a short, synthetic, cationic AMP, is active against bacteria and displays low toxicity towards eukaryotic cells. BP100 acquires a α-helical conformation upon interaction with membranes and increases membrane permeability. Despite the volume of information available, the action mechanism of BP100, the selectivity of its biological effects, and possible applications are far from consensual. Our group synthesized a fluorescent BP100 analogue containing naphthalimide linked to its N-terminal end, NAPHT-BP100 (Naphthalimide-AAKKLFKKILKYL-NH2). The fluorescence properties of naphthalimides, especially their spectral sensitivity to microenvironment changes, are well established, and their biological activities against transformed cells and bacteria are known. Naphthalimide derived compounds are known to interact with DNA disturbing related processes as replication and transcription, and used as anticancer agents due to this property. A wide variety of techniques were used to demonstrate that NAPHT-BP100 bound to and permeabilized zwitterionic POPC and negatively charged POPC:POPG liposomes and, upon interaction, acquired a α-helical structure. Membrane surface high peptide/lipid ratios triggered complete permeabilization of the liposomes in a detergent-like manner. Membrane disruption was driven by charge neutralization, lipid aggregation, and bilayer destabilization. NAPHT-BP100 also interacted with double-stranded DNA, indicating that this peptide could also affect other cellular processes besides causing membrane destabilization. NAPHT-BP100 showed increased antibacterial and hemolytic activities, compared to BP100, and may constitute an efficient antimicrobial agent for dermatological use. By conjugating BP100 and naphthalimide DNA binding properties, NAPHT-BP100 bound to a large extent to the bacterial membrane and could more efficiently destabilize it. We also speculate that peptide could enter the bacteria cell and interact with its DNA in the cytoplasm.
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136
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Man RJ, Jeelani N, Zhou C, Yang YS. Recent Progress in the Development of Quinoline Derivatives for the Exploitation of Anti-Cancer Agents. Anticancer Agents Med Chem 2021; 21:825-838. [PMID: 32416703 DOI: 10.2174/1871520620666200516150345] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 01/23/2020] [Accepted: 02/10/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Along with the progress in medicine and therapies, the exploitation of anti-cancer agents focused more on the vital signaling pathways and key biological macromolecules. With rational design and advanced synthesis, quinoline derivatives have been utilized frequently in medicinal chemistry, especially in developing anti-cancer drugs or candidates. METHODS Using DOI searching, articles published before 2020 all over the world have been reviewed as comprehensively as possible. RESULTS In this review, we selected the representative quinoline derivate drugs in market or clinical trials, classified them into five major categories with detailed targets according to their main mechanisms, discussed the relationship within the same mechanism, and generated a summative discussion with prospective expectations. For each mechanism, the introduction of the target was presented, with the typical examples of quinoline derivate drugs. CONCLUSION This review has highlighted the quinoline drugs or candidates, suited them into corresponding targets in their pathways, summarized and discussed. We hope that this review may help the researchers who are interested in discovering quinoline derivate anti-cancer agents obtain considerable understanding of this specific topic. Through the flourishing period and the vigorous strategies in clinical trials, quinoline drugs would be potential but facing new challenges in the future.
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Affiliation(s)
- Ruo-Jun Man
- College of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning, China
| | - Nasreen Jeelani
- Institute of Chemistry and BioMedical Sciences, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Chongchen Zhou
- Henan Provincial Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou University, Zhengzhou, 450018, China
| | - Yu-Shun Yang
- Institute of Chemistry and BioMedical Sciences, School of Life Sciences, Nanjing University, Nanjing 210023, China
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137
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Lovitt JI, Umadevi D, Raja Lakshmi P, Twamley B, Gunnlaugsson T, Shanmugaraju S. Synthesis, structural characterization, antibiotics sensing and coordination chemistry of a fluorescent 4-amino-1,8-naphthalimide Tröger’s base supramolecular scaffold. Supramol Chem 2021. [DOI: 10.1080/10610278.2021.1889551] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- June I. Lovitt
- School of Chemistry and Trinity Biomedical Sciences Institute, Trinity College Dublin, the University of Dublin, Dublin 2, Ireland
- Synthesis and Solid-State Pharmaceutical Centre (SSPC) School of Chemistry, Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
| | - Deivasigamani Umadevi
- School of Chemistry and Trinity Biomedical Sciences Institute, Trinity College Dublin, the University of Dublin, Dublin 2, Ireland
| | - Pandi Raja Lakshmi
- Discipline of Chemistry, Indian Institute of Technology Palakkad, Kerala, India
| | - Brendan Twamley
- School of Chemistry and Trinity Biomedical Sciences Institute, Trinity College Dublin, the University of Dublin, Dublin 2, Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistry and Trinity Biomedical Sciences Institute, Trinity College Dublin, the University of Dublin, Dublin 2, Ireland
- Synthesis and Solid-State Pharmaceutical Centre (SSPC) School of Chemistry, Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
- AMBER (Advanced Materials and Bioengineering Research) Centre, Trinity College Dublin, the University of Dublin, Dublin 2, Ireland
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138
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Costales P, Ríos-Lombardía N, Lorenzo-Herrero S, Morís F, González-Sabín J. Novel chiral naphthalimide-cycloalkanediamine conjugates: Design, synthesis and antitumor activity. Bioorg Chem 2021; 112:104859. [PMID: 33836453 DOI: 10.1016/j.bioorg.2021.104859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/18/2021] [Accepted: 03/22/2021] [Indexed: 10/21/2022]
Abstract
A novel series of enantiopure naphthalimide-cycloalkanediamine conjugates were designed, synthetized and evaluated for in vitro cytotoxicity against human colon adenocarcinoma (LoVo), human lung adenocarcinoma (A549), human cervical carcinoma (Hela) and human promyelocytic leukemia cell lines (HL-60). The cytotoxicity of the compounds was highly dependent on size and relative stereochemistry of the cycloalkyl ring as well as length of the spacer. By contrast, any kind of enantioselection was observed for each pair of enantiomers. Flow cytometric analysis indicated that compounds 22 and 23 could effectively induce G2/M arrest in the four previous cell lines despite a mild apoptotic effect.
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Affiliation(s)
- Paula Costales
- EntreChem SL, Vivero Ciencias de la Salud, Santo Domingo de Guzmán, 33011 Oviedo, Spain
| | | | - Seila Lorenzo-Herrero
- EntreChem SL, Vivero Ciencias de la Salud, Santo Domingo de Guzmán, 33011 Oviedo, Spain
| | - Francisco Morís
- EntreChem SL, Vivero Ciencias de la Salud, Santo Domingo de Guzmán, 33011 Oviedo, Spain
| | - Javier González-Sabín
- EntreChem SL, Vivero Ciencias de la Salud, Santo Domingo de Guzmán, 33011 Oviedo, Spain.
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139
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Fan YR, Wang BJ, Jia DG, Yang XB, Huang Y. Synthesis, electrochemistry, DNA binding and in vitro cytotoxic activity of tripodal ferrocenyl bis-naphthalimide derivatives. J Inorg Biochem 2021; 219:111425. [PMID: 33831713 DOI: 10.1016/j.jinorgbio.2021.111425] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/03/2021] [Accepted: 03/10/2021] [Indexed: 01/16/2023]
Abstract
A series of tripodal ferrocenyl bis-naphthalimide derivatives were synthesized and characterized. All of the bis-naphthalimide derivatives exhibited good DNA binding ability which was confirmed by ethidium bromide (EB) displacement experiment and ultraviolet (UV)-visible absorption titration. And the binding mode of these compounds was proved to be a hybrid binding mode by experiments. The cytotoxicity of synthesized compounds against 4 different human cancer cell lines (EC109, BGC823, SGC7901 and HEPG2) was evaluated by thiazolyl blue tetrazolium bromide (MTT) assay. All of the bis-naphthalimide derivatives exhibited good anticancer activity than the positive control drug (amonafide), which was due to the promotion of reactive oxygen species (ROS) level in test cancer cells by the reversible one-electron redox process of ferrocenyl bis-naphthalimide derivatives. Although there was no obvious relationship between the binding constants and the chain length, the structure cytotoxicity relationship revealed that the linker of n = 3, m = 1 was the best choice for the tested tripodol bis-naphthalimide derivatives. SYNOPSIS: A series of tripodal ferrocenyl bis-naphthalimide derivatives were synthesized to study the DNA binding ability and the cytotoxicity induced by reactive oxygen species. All of the compounds exhibited good DNA binding ability. And the structure cytotoxicity relationship revealed that the structure of 5h was the best choice.
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Affiliation(s)
- Yan-Ru Fan
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Engineering and Technology Research Center of Characteristic Chinese Medicine Modernization, College of Pharmacy, Ningxia Medical University, Yinchuan 750004, PR China
| | - Bo-Jin Wang
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Engineering and Technology Research Center of Characteristic Chinese Medicine Modernization, College of Pharmacy, Ningxia Medical University, Yinchuan 750004, PR China
| | - Deng-Guo Jia
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Engineering and Technology Research Center of Characteristic Chinese Medicine Modernization, College of Pharmacy, Ningxia Medical University, Yinchuan 750004, PR China
| | - Xin-Bin Yang
- Southwest University, Rongchang Campus, Chongqing 402460, PR China
| | - Yu Huang
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Engineering and Technology Research Center of Characteristic Chinese Medicine Modernization, College of Pharmacy, Ningxia Medical University, Yinchuan 750004, PR China.
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140
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Ferger M, Ban Ž, Krošl I, Tomić S, Dietrich L, Lorenzen S, Rauch F, Sieh D, Friedrich A, Griesbeck S, Kenđel A, Miljanić S, Piantanida I, Marder TB. Bis(phenylethynyl)arene Linkers in Tetracationic Bis-triarylborane Chromophores Control Fluorimetric and Raman Sensing of Various DNAs and RNAs. Chemistry 2021; 27:5142-5159. [PMID: 33411942 PMCID: PMC8048639 DOI: 10.1002/chem.202005141] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/20/2020] [Indexed: 11/24/2022]
Abstract
We report four new luminescent tetracationic bis-triarylborane DNA and RNA sensors that show high binding affinities, in several cases even in the nanomolar range. Three of the compounds contain substituted, highly emissive and structurally flexible bis(2,6-dimethylphenyl-4-ethynyl)arene linkers (3: arene=5,5'-2,2'-bithiophene; 4: arene=1,4-benzene; 5: arene=9,10-anthracene) between the two boryl moieties and serve as efficient dual Raman and fluorescence chromophores. The shorter analogue 6 employs 9,10-anthracene as the linker and demonstrates the importance of an adequate linker length with a certain level of flexibility by exhibiting generally lower binding affinities than 3-5. Pronounced aggregation-deaggregation processes are observed in fluorimetric titration experiments with DNA for compounds 3 and 5. Molecular modelling of complexes of 5 with AT-DNA, suggest the minor groove as the dominant binding site for monomeric 5, but demonstrate that dimers of 5 can also be accommodated. Strong SERS responses for 3-5 versus a very weak response for 6, particularly the strong signals from anthracene itself observed for 5 but not for 6, demonstrate the importance of triple bonds for strong Raman activity in molecules of this compound class. The energy of the characteristic stretching vibration of the C≡C bonds is significantly dependent on the aromatic moiety between the triple bonds. The insertion of aromatic moieties between two C≡C bonds thus offers an alternative design for dual Raman and fluorescence chromophores, applicable in multiplex biological Raman imaging.
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Affiliation(s)
- Matthias Ferger
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Željka Ban
- Division of Organic Chemistry & BiochemistryRuđer Bošković Institute, Bijenička 5410000ZagrebCroatia
| | - Ivona Krošl
- Division of Organic Chemistry & BiochemistryRuđer Bošković Institute, Bijenička 5410000ZagrebCroatia
| | - Sanja Tomić
- Division of Organic Chemistry & BiochemistryRuđer Bošković Institute, Bijenička 5410000ZagrebCroatia
| | - Lena Dietrich
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Sabine Lorenzen
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Florian Rauch
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Daniel Sieh
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Alexandra Friedrich
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Stefanie Griesbeck
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Adriana Kenđel
- Division of Analytical ChemistryDepartment of Chemistry, Faculty of ScienceUniversity of Zagreb, Horvatovac 102a10000ZagrebCroatia
| | - Snežana Miljanić
- Division of Analytical ChemistryDepartment of Chemistry, Faculty of ScienceUniversity of Zagreb, Horvatovac 102a10000ZagrebCroatia
| | - Ivo Piantanida
- Division of Organic Chemistry & BiochemistryRuđer Bošković Institute, Bijenička 5410000ZagrebCroatia
| | - Todd B. Marder
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
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141
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Kelly LA, Roll M, Joseph J, Seenisamy J, Barrett J, Kauser K, Warner KS. Solvent-Dependent Photophysics and Reactivity of Monomeric and Dimeric 4-Amino-1,8-Naphthalimides. J Phys Chem A 2021; 125:2294-2307. [DOI: 10.1021/acs.jpca.0c11639] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lisa A. Kelly
- Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, Baltimore, Maryland 21250 United States
| | - Melissa Roll
- Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, Baltimore, Maryland 21250 United States
| | - Jayan Joseph
- Syngene International Ltd., Biocon Park, 560099 Bengaluru, India
| | | | - Justin Barrett
- Alucent Biomedical Inc., 675 Arapeen Drive, Suite 102, Salt Lake City, Utah 84108, United States
| | - Katalin Kauser
- Alucent Biomedical Inc., 675 Arapeen Drive, Suite 102, Salt Lake City, Utah 84108, United States
| | - Kevin S. Warner
- Alucent Biomedical Inc., 675 Arapeen Drive, Suite 102, Salt Lake City, Utah 84108, United States
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142
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Evaluation of the mechanical properties and blood compatibility of Polycarbonate Urethane and fluorescent self-colored Polycarbonate Urethane as Polymeric Biomaterials. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02478-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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143
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Malik MS, Farooq Adil S, Moussa Z, Altass HM, Althagafi II, Morad M, Ansari MA, Sajid Jamal QM, Obaid RJ, Al-Warthan AA, Shaik TB, Ahmed SA. Rational Design and Synthesis of Naphthalene Diimide Linked Bis-Naphthalimides as DNA Interactive Agents. Front Chem 2021; 9:630357. [PMID: 33777897 PMCID: PMC7988716 DOI: 10.3389/fchem.2021.630357] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 01/07/2021] [Indexed: 01/23/2023] Open
Abstract
A molecular modeling assisted rational design and synthesis of naphthalene diimide linked bis-naphthalimides as potential DNA interactive agents is described. Chemical templates incorporating naphthalene diimide as a linker in bis-naphthalimide motif were subjected to molecular docking analysis at specific intercalation and telomeric DNA G-quadruplex sites. Excellent results were obtained, which were better than the standards. A short and convenient synthetic route was employed to access these hybrids experimentally, followed by evaluation of their ability to cause thermal denaturation of DNA and cytotoxic properties along with ADME predictions. The obtained results provided useful insights and two potential molecules were identified for further development.
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Affiliation(s)
- M Shaheer Malik
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Syed Farooq Adil
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ziad Moussa
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain, Abu Dhabi, United Arab Emirates
| | - Hatem M Altass
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ismail I Althagafi
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Moataz Morad
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Mohammad Azam Ansari
- Department of Epidemic Disease Research, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
| | - Qazi Mohammad Sajid Jamal
- Department of Health Informatics, College of Public Health and Health Informatics, Qassim University, Al Bukayriyah, Saudi Arabia
| | - Rami J Obaid
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | | | - Thokhir B Shaik
- Research on Advanced BioMedical Solutions Pvt Ltd, KPHB, Hyderabad, 500071, India
| | - Saleh A Ahmed
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia.,Department of Chemistry, Faculty of Science, Assiut University, 71516, Assiut, Egypt.,Research Laboratories Unit, Faculty of Applied Science, Umm Al-Qura University, 21955, Makkah, Saudi Arabia
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144
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Raj P, Lee SY, Lee TY. Carbon Dot/Naphthalimide Based Ratiometric Fluorescence Biosensor for Hyaluronidase Detection. MATERIALS 2021; 14:ma14051313. [PMID: 33803381 PMCID: PMC7967242 DOI: 10.3390/ma14051313] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/27/2021] [Accepted: 03/07/2021] [Indexed: 12/14/2022]
Abstract
Bladder cancer is the leading cause of death in patients with genitourinary cancer. An elevated level of hyaluronidase (HAase) was found in bladder cancer, which acts as an important biomarker for the early diagnosis of bladder cancer. Hence, there is a need to develop a simple enzymatic assay for the early recognition of HAase. Herein, we report a simple, sensitive, and ratiometric fluorescence assay for HAase detection under physiological conditions. The fluorescence assay was constructed by the adsorption of cationic carbon dots and positively charged naphthalimide on negatively charged hyaluronic acid and the development of a Förster resonance energy transfer (FRET) mechanism from carbon dots to a naphthalimide fluorophores. The hyaluronidase enzyme cleaves the hyaluronic acid in this assay, and breaking down the FRET mechanism induces ratiometric changes. A detection limit of 0.09 U/mL was achieved, which is less than the HAase level found in normal human body fluids. Moreover, this assay may be used for diagnosing HAase-related diseases.
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Affiliation(s)
- Pushap Raj
- Department of Convergence System Engineering and Department of Biomedical Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea;
| | - Seon-yeong Lee
- Department of Technology Education, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea;
| | - Tae Yoon Lee
- Department of Convergence System Engineering and Department of Biomedical Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea;
- Department of Technology Education, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea;
- Correspondence:
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145
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Synthesis, spectroscopic and structural characterization and solution stability of ruthenium sandwich complexes containing 1,8-naphthalimide ligands. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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146
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Sahoo T, Sarkar S, Ghosh SC. Copper(II) mediated C-8 amination of 1-naphthylamide derivatives with acyclic and cyclic amines. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Rahal M, Mokbel H, Graff B, Pertici V, Gigmes D, Toufaily J, Hamieh T, Dumur F, Lalevée J. Naphthalimide‐Based Dyes as Photoinitiators under Visible Light Irradiation and their Applications: Photocomposite Synthesis, 3D printing and Polymerization in Water. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202000306] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mahmoud Rahal
- Université de Haute-Alsace CNRS, IS2M UMR 7361 68100 Mulhouse France
- Université de Strasbourg Strasbourg France
- Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA) and LEADDER Laboratory Faculty of Sciences Doctoral School of Sciences and Technology (EDST) Lebanese University Beirut 6573-14 Lebanon
| | - Haifaa Mokbel
- Université de Haute-Alsace CNRS, IS2M UMR 7361 68100 Mulhouse France
- Université de Strasbourg Strasbourg France
| | - Bernadette Graff
- Université de Haute-Alsace CNRS, IS2M UMR 7361 68100 Mulhouse France
- Université de Strasbourg Strasbourg France
| | | | - Didier Gigmes
- Aix Marseille Univ CNRS ICR UMR 7273 13397 Marseille France
| | - Joumana Toufaily
- Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA) and LEADDER Laboratory Faculty of Sciences Doctoral School of Sciences and Technology (EDST) Lebanese University Beirut 6573-14 Lebanon
| | - Tayssir Hamieh
- Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA) and LEADDER Laboratory Faculty of Sciences Doctoral School of Sciences and Technology (EDST) Lebanese University Beirut 6573-14 Lebanon
- SATIE-IFSTTAR Université Gustave Eiffel Campus de Marne-La-Vallée 25, allée des Marronniers 78000 Versailles France
| | - Frédéric Dumur
- Aix Marseille Univ CNRS ICR UMR 7273 13397 Marseille France
| | - Jacques Lalevée
- Université de Haute-Alsace CNRS, IS2M UMR 7361 68100 Mulhouse France
- Université de Strasbourg Strasbourg France
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Jaber S, Iliev I, Angelova T, Nemska V, Sulikovska I, Naydenova E, Georgieva N, Givechev I, Grabchev I, Danalev D. Synthesis, Antitumor and Antibacterial Studies of New Shortened Analogues of (KLAKLAK) 2-NH 2 and Their Conjugates Containing Unnatural Amino Acids. Molecules 2021; 26:898. [PMID: 33567789 PMCID: PMC7915940 DOI: 10.3390/molecules26040898] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/02/2021] [Accepted: 02/05/2021] [Indexed: 11/16/2022] Open
Abstract
(1) Background: (KLAKLAK)2 is a representative of the antimicrobial peptide group which also shows good anticancer properties. (2) Methods: Herein, we report synthesis using SPPS and characterization by HPLC/MS of a series of shortened analogues of (KLAKLAK)2. They contain single sequence KLAKLAK as C-terminal amides. In addition, substitution of some natural amino acids with unnatural β-Ala and nor-Leu is realized. In addition, these structures are conjugated with second pharmacophore with well proven anticancer properties 1,8-naphthalimide or caffeic acid. Cytotoxicity, antiproliferative effect and antimicrobial activity of newly synthesized structures were studied. (3) Results: The obtained experimental results reveal significant selective index for substances with common chemical structure KLβAKLβAK-NH2. The antibacterial properties of newly synthesized analogues at two different concentrations 10 μM and 20 μM, were tested against Gram-negative microorganisms Escherichia coli K12 407. Only two of the studied compounds KLAKLAK-NH2 and the one conjugated with second pharmacophore 1,8-naphthalimide and unnatural amino acid nor-Leu showed moderate activity against tested strains at concentration of 20 μM. (4) Conclusions: The obtained results reveal that the introducing of 1,8-naphthalimideGly- and Caf- increase the cytotoxicity and antiproliferative activity of the peptides but not their selectivity. Only two compounds KLAKLAK-NH2 and 1,8-naphthalimideGKnLAKnLAK-NH2 show moderate activity against Escherichia coli K12 at low concentration of 20μM.
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Affiliation(s)
- Sirine Jaber
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski blvd., 1756 Sofia, Bulgaria; (S.J.); (T.A.); (V.N.); (N.G.); (I.G.)
| | - Ivan Iliev
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl. 25, 1113 Sofia, Bulgaria; (I.I.); (I.S.)
| | - Tsvetelina Angelova
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski blvd., 1756 Sofia, Bulgaria; (S.J.); (T.A.); (V.N.); (N.G.); (I.G.)
| | - Veronica Nemska
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski blvd., 1756 Sofia, Bulgaria; (S.J.); (T.A.); (V.N.); (N.G.); (I.G.)
| | - Inna Sulikovska
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl. 25, 1113 Sofia, Bulgaria; (I.I.); (I.S.)
| | - Emilia Naydenova
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski blvd., 1756 Sofia, Bulgaria; (S.J.); (T.A.); (V.N.); (N.G.); (I.G.)
| | - Nelly Georgieva
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski blvd., 1756 Sofia, Bulgaria; (S.J.); (T.A.); (V.N.); (N.G.); (I.G.)
| | - Ivan Givechev
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski blvd., 1756 Sofia, Bulgaria; (S.J.); (T.A.); (V.N.); (N.G.); (I.G.)
- Testing Center Global Test Ltd., 31 Krushovski vrah Street, 1618 Sofia, Bulgaria
| | - Ivo Grabchev
- Department of Chemistry and Biochemistry, Physiology and Pathophysiology, Sofia University “St. Kliment Ohridski”, 1504 Sofia, Bulgaria;
| | - Dancho Danalev
- University of Chemical Technology and Metallurgy, 8 Kliment Ohridski blvd., 1756 Sofia, Bulgaria; (S.J.); (T.A.); (V.N.); (N.G.); (I.G.)
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150
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Bortolozzi R, Ihmels H, Schulte R, Stremmel C, Viola G. Synthesis, DNA-binding and antiproliferative properties of diarylquinolizinium derivatives. Org Biomol Chem 2021; 19:878-890. [PMID: 33410854 DOI: 10.1039/d0ob02298e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A series of ten 2,7- and 2,8-diarylquinolizinium derivatives was synthesized and their DNA-binding and cytotoxic properties were investigated. Except for one nitro-substituted derivative all tested diarylquinolizinium ions bind to DNA with sufficient affinity (2 × 104 M-1-2 × 105 M-1). It was shown with photometric, fluorimetric and polarimetric titrations as well as with flow-LD analysis that the ligands bind mainly by intercalation to duplex DNA, however, depending on the ligand-DNA ratio, groove binding and backbone association were also observed with some derivatives. The biological activity was further investigated with tests of cytotoxicity and antiproliferative properties towards non-tumor cells and selected cancer cells, along with cell cycle analysis and an annexin-V assay. Notably, substrates that carry donor-functionalities in the 4-position of the phenyl substituents revealed a strong, and in some cases selective, antiproliferative activity as quantified by the growth inhibition, GI50, at very low micromolar and even submicromolar level both in leukemia and solid tumors.
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Affiliation(s)
- Roberta Bortolozzi
- Department of Women's and Child's health, Oncohematology laboratory, University of Padova, Via Giustiniani 2, I-35128 Padova, Italy. giampietro,
| | - Heiko Ihmels
- Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Str. 2, 57068 Siegen, Germany.
| | - Robin Schulte
- Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Str. 2, 57068 Siegen, Germany.
| | - Christopher Stremmel
- Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Str. 2, 57068 Siegen, Germany.
| | - Giampietro Viola
- Department of Women's and Child's health, Oncohematology laboratory, University of Padova, Via Giustiniani 2, I-35128 Padova, Italy. giampietro,
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