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Moffa S, Carradori S, Melfi F, Fontana A, Ciulla M, Di Profio P, Aschi M, Wolicki RD, Pilato S, Siani G. Fine-tuning of membrane permeability by reversible photoisomerization of aryl-azo derivatives of thymol embedded in lipid nanoparticles. Colloids Surf B Biointerfaces 2024; 241:114043. [PMID: 38901266 DOI: 10.1016/j.colsurfb.2024.114043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 06/07/2024] [Accepted: 06/15/2024] [Indexed: 06/22/2024]
Abstract
Responsiveness of liposomes to external stimuli, such as light, should allow a precise spatial and temporal control of release of therapeutic agents or ion transmembrane transport. Here, some aryl-azo derivatives of thymol are synthesized and embedded into liposomes from 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine to obtain light-sensitive membranes whose photo-responsiveness, release behaviour, and permeability towards Cl- ions are investigated. The hybrid systems are in-depth characterized by dynamic light scattering, atomic force microscopy and Raman spectroscopy. In liposomal bilayer the selected guests undergo reversible photoinduced isomerization upon irradiation with UV and visible light, alternately. Non-irradiated hybrid liposomes retain entrapped 5(6)-carboxyfluorescein (CF), slowing its spontaneous leakage, whereas UV-irradiation promotes CF release, due to guest trans-to-cis isomerization. Photoisomerization also influences membrane permeability towards Cl- ions. Data processing, according to first-order kinetics, demonstrates that Cl- transmembrane transport is enhanced by switching the guest from trans to cis but restored by back-switching the guest from cis to trans upon illumination with blue light. Finally, the passage of Cl- ions across the bilayer can be fine-tuned by irradiation with light of longer λ and different light-exposure times. Fine-tuning the photo-induced structural response of the liposomal membrane upon isomerization is a promising step towards effective photo-dynamic therapy.
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Affiliation(s)
- Samanta Moffa
- Dipartimento di Farmacia, Università degli Studi Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini 31, Chieti 66100, Italy
| | - Simone Carradori
- Dipartimento di Farmacia, Università degli Studi Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini 31, Chieti 66100, Italy
| | - Francesco Melfi
- Dipartimento di Farmacia, Università degli Studi Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini 31, Chieti 66100, Italy
| | - Antonella Fontana
- Dipartimento di Farmacia, Università degli Studi Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini 31, Chieti 66100, Italy; UdA-TechLab, Research Center, Università degli Studi Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini 31, Chieti 66100, Italy
| | - Michele Ciulla
- Dipartimento di Farmacia, Università degli Studi Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini 31, Chieti 66100, Italy; UdA-TechLab, Research Center, Università degli Studi Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini 31, Chieti 66100, Italy
| | - Pietro Di Profio
- Dipartimento di Farmacia, Università degli Studi Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini 31, Chieti 66100, Italy
| | - Massimiliano Aschi
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell'Aquila, via Vetoio, Coppito, L'Aquila 67100, Italy
| | - Rafal Damian Wolicki
- Dipartimento di Farmacia, Università degli Studi Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini 31, Chieti 66100, Italy
| | - Serena Pilato
- Dipartimento di Farmacia, Università degli Studi Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini 31, Chieti 66100, Italy; UdA-TechLab, Research Center, Università degli Studi Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini 31, Chieti 66100, Italy.
| | - Gabriella Siani
- Dipartimento di Farmacia, Università degli Studi Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini 31, Chieti 66100, Italy; UdA-TechLab, Research Center, Università degli Studi Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini 31, Chieti 66100, Italy.
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2
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Franke M, Klingsiek MJ, Buth J, Mix A, Lamm JH, Neumann B, Stammler HG, Mitzel NW. Tridentate Lewis Acids Based on Tribenzotriquinacene Chalices. Chemistry 2024; 30:e202401072. [PMID: 38742716 DOI: 10.1002/chem.202401072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/03/2024] [Accepted: 05/13/2024] [Indexed: 05/16/2024]
Abstract
Chalice-shaped tridentate poly-Lewis acids (PLA) based on the tribenzotriquinacene (TBTQ) scaffold have been synthesised. Stannylation of the alkyne units, attached via phenyl-spacers to the benzhydrylic positions to the TBTQ scaffold, with Me2NSnMe3 afforded the trimethyltin substituted TBTQ derivative. Replacement of these tin functions with other elements resulted in rigid boron- and aluminium-functionalised PLAs. More flexible PLAs were obtained by hydrometallation reactions of the terminal alkyne groups of 4b,8b,12b-tris((ethynyl)phenyl)tribenzotriquinacene. The resulting poly-Lewis acids were tested for their acceptor abilities in host-guest experiments with suitable bases. Preliminary tests with pyridine led to the synthesis of a large tridentate base with three pyridyl groups attached to a TBTQ backbone. Complexation of this Lewis base with the PLAs resulted in the formation of aggregates, which were studied in solution in more detail by 1H DOSY NMR experiments regarding their size. Further experiments were performed with the tridentate bases 1,4,7-trimethyl-1,4,7-triazacyclononane and tris((dimethylphosphino)methyl)phenylsilane.
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Affiliation(s)
- Maurice Franke
- Chair of Inorganic and Structural Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld
| | - Maximilian J Klingsiek
- Chair of Inorganic and Structural Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld
| | - Julian Buth
- Chair of Inorganic and Structural Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld
| | - Andreas Mix
- Chair of Inorganic and Structural Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld
| | - Jan-Hendrik Lamm
- Chair of Inorganic and Structural Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld
| | - Beate Neumann
- Chair of Inorganic and Structural Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld
| | - Hans-Georg Stammler
- Chair of Inorganic and Structural Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld
| | - Norbert W Mitzel
- Chair of Inorganic and Structural Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld
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3
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Lu YL, Su J, Li JW, Xu WR. A molecular container providing supramolecular protection against acetylcholine hydrolysis. Org Biomol Chem 2024; 22:1634-1638. [PMID: 38323382 DOI: 10.1039/d4ob00024b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Alzheimer's disease (AD) is characterized by cognitive decline, often attributed to the deficiency of acetylcholine, which can undergo hydrolysis by acetylcholinesterase (AChE) within the biological milieu. Here, we report a supramolecular strategy that takes advantage of confinement effects to inhibit such a hydrolysis process, shedding some light on AD therapy. A water-soluble and bowl-shaped molecule, hexacarboxylated tribenzotriquinacene (TBTQ-C6), was employed to shield acetylcholine (G1) from enzymatic degradation through host-guest binding interactions. Our study revealed highly efficient host-guest interactions with a binding ratio of 1 : 3, resulting in a significant reduction in acetylcholine hydrolysis from 91.1% to 7.4% in the presence of AChE under otherwise identical conditions. Furthermore, TBTQ-C6 showed potential for attenuating the degradation of butyrylcholine (G2) by butyrylcholinesterase (BChE). The broader implications of this study extend to the potential use of molecular containers in various biochemical and pharmacological applications, opening new avenues for research in the field of neurodegenerative diseases.
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Affiliation(s)
- Yi-Long Lu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, PR China.
| | - Jing Su
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, PR China.
| | - Jian-Wei Li
- MediCity Research Laboratory, University of Turku, Tykistökatu 6, FI-20520 Turku, Finland.
| | - Wen-Rong Xu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, PR China.
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Yang N, Zhu YY, Lin WX, Lu YL, Xu WR. pH-Responsive fluorescent supramolecular nanoparticles based on tetraphenylethylene-labelled chitosan and a six-fold carboxylated tribenzotriquinacene. Beilstein J Org Chem 2023; 19:635-645. [PMID: 37205131 PMCID: PMC10186267 DOI: 10.3762/bjoc.19.45] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/26/2023] [Indexed: 05/21/2023] Open
Abstract
We synthesized a new tetraphenylethylene-modified chitosan bioconjugate, CS-TPE, that shows the aggregation-induced emission effect. It can self-assemble into fluorescent polymeric nanoparticles in an aqueous solution at pH 5.3 either alone or with the water-soluble bowl-shaped six-fold carboxylated tribenzotriquinacene derivative TBTQ-C6 via host-guest binding. The spherical nanoparticles formed by CS-TPE amphiphiles or TBTQ-C6/CS-TPE supra-amphiphiles disintegrated under alkaline stimulation at pH 10.4 and the dispersion of the aggregates after the collapse in the presence of TBTQ-C6 was greatly improved. In addition, the fluorescence of CS-TPE was significantly enhanced by introducing TBTQ-C6, and remained relatively stable with variations in pH for both CS-TPE and TBTQ-C6/CS-TPE. Such pH-responsive supramolecular spherical nanoparticles with stable fluorescence emission based on CS-TPE or TBTQ-C6/CS-TPE may find applications in various fields, including the development of visual oral drug delivery systems.
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Affiliation(s)
- Nan Yang
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Hainan Provincial Key Laboratory of Fine Chemistry, School of Chemical Engineering and Technology, School of Science, Hainan University, Haikou 570228, PR China
| | - Yi-Yan Zhu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Hainan Provincial Key Laboratory of Fine Chemistry, School of Chemical Engineering and Technology, School of Science, Hainan University, Haikou 570228, PR China
| | - Wei-Xiu Lin
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Hainan Provincial Key Laboratory of Fine Chemistry, School of Chemical Engineering and Technology, School of Science, Hainan University, Haikou 570228, PR China
| | - Yi-Long Lu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Hainan Provincial Key Laboratory of Fine Chemistry, School of Chemical Engineering and Technology, School of Science, Hainan University, Haikou 570228, PR China
| | - Wen-Rong Xu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Hainan Provincial Key Laboratory of Fine Chemistry, School of Chemical Engineering and Technology, School of Science, Hainan University, Haikou 570228, PR China
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5
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Li MP, Yang N, Xu WR. Synthesis of a new water-soluble hexacarboxylated tribenzotriquinacene derivative and its competitive host–guest interaction for drug delivery. Beilstein J Org Chem 2022; 18:539-548. [PMID: 35615534 PMCID: PMC9112186 DOI: 10.3762/bjoc.18.56] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 05/02/2022] [Indexed: 11/23/2022] Open
Abstract
A new water-soluble hexacarboxylated tribenzotriquinacene derivative (TBTQ-CB6) was synthesized and used as a supramolecular drug carrier to load the model anticancer drugs dimethyl viologen (MV) and doxorubicin (DOX) via host–guest interactions. The drugs could be effectively released by spermine (SM), a molecule overexpressed in cancer cells, through host–guest competitive substitution since TBTQ-CB6 has a stronger binding affinity toward SM than MV and DOX. The host–guest interactions of the complexes of TBTQ-CB6 with MV, DOX and SM were investigated by NMR spectroscopy and fluorescence spectroscopy. The association stoichiometry of the complexes of TBTQ-CB6 with MV, DOX, and SM was found to be 1:1 with association constants of Ka = (7.67 ± 0.34) × 104 M−1, Ka = (6.81 ± 0.33) × 104 M−1, and Ka = (5.09 ± 0.98) × 105 M−1, respectively. The competitive substitution process was visualized by NMR titration. This novel TBTQ-based host–guest drug delivery system may have potential use in supramolecular chemotherapy.
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Affiliation(s)
- Man-Ping Li
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Department of Chemistry, School of Science or School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, China
| | - Nan Yang
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Department of Chemistry, School of Science or School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, China
| | - Wen-Rong Xu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Department of Chemistry, School of Science or School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, China
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Seifert M, Barth D, Kuck D. Benzoannellated Fenestranes Bearing
para
‐Terphenyl Units. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Monika Seifert
- Department of Chemistry Bielefeld University 33615 Bielefeld Germany
| | - Dieter Barth
- Department of Chemistry Bielefeld University 33615 Bielefeld Germany
| | - Dietmar Kuck
- Department of Chemistry Bielefeld University 33615 Bielefeld Germany
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7
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Gu MJ, Wang YF, Han Y, Chen CF. Recent advances on triptycene derivatives in supramolecular and materials chemistry. Org Biomol Chem 2021; 19:10047-10067. [PMID: 34751696 DOI: 10.1039/d1ob01818c] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Triptycene derivatives, a type of specific aromatic compound, have been attracting much attention in many research areas. Over the past several years, triptycene and its derivatives have been described to be useful and efficient building blocks for the design and synthesis of novel supramolecular acceptors, porous materials and luminescent materials with specific structures and properties. In this review, recent researches on triptycene derivatives in supramolecular and materials chemistry are summarized. Especially, the construction of a new type of macrocyclic arenes and organic cages with triptycene and its derivatives as building blocks are focused on, and their applications in molecular recognition, self-assembly and gas selective sorption are highlighted. Moreover, the applications of triptycene and its derivatives in porous organic materials and thermally activated delayed fluorescence (TADF) materials are also discussed.
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Affiliation(s)
- Meng-Jie Gu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. .,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yin-Feng Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. .,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ying Han
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Chuan-Feng Chen
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. .,University of Chinese Academy of Sciences, Beijing 100049, China
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Navarro-Barreda D, Angulo-Pachón CA, Galindo F, Miravet JF. Photoreversible formation of nanotubes in water from an amphiphilic azobenzene derivative. Chem Commun (Camb) 2021; 57:11545-11548. [PMID: 34664569 DOI: 10.1039/d1cc04319f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An anionic azobenzene-appended derivative of L-ValylGlycine self-assembles into nanotubes in water. Irradiation with 365 nm light provokes trans-cis isomerization of the azobenzene unit and subsequent tube disassembly. Thermal or photoinduced (457 nm light) recovery of the trans isomer restores the nanotubes.
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Affiliation(s)
- Diego Navarro-Barreda
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. Vicent Sos Baynat s/n, Castellón, 12071, Spain.
| | - César A Angulo-Pachón
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. Vicent Sos Baynat s/n, Castellón, 12071, Spain.
| | - Francisco Galindo
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. Vicent Sos Baynat s/n, Castellón, 12071, Spain.
| | - Juan F Miravet
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. Vicent Sos Baynat s/n, Castellón, 12071, Spain.
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