1
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Alešković M, Šekutor M. Overcoming barriers with non-covalent interactions: supramolecular recognition of adamantyl cucurbit[ n]uril assemblies for medical applications. RSC Med Chem 2024; 15:433-471. [PMID: 38389878 PMCID: PMC10880950 DOI: 10.1039/d3md00596h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 11/30/2023] [Indexed: 02/24/2024] Open
Abstract
Adamantane, a staple in medicinal chemistry, recently became a cornerstone of a supramolecular host-guest drug delivery system, ADA/CB[n]. Owing to a good fit between the adamantane cage and the host cavity of the cucurbit[n]uril macrocycle, formed strong inclusion complexes find applications in drug delivery and controlled drug release. Note that the cucurbit[n]uril host is not solely a delivery vehicle of the ADA/CB[n] system but rather influences the bioactivity and bioavailability of drug molecules and can tune drug properties. Namely, as host-guest interactions are capable of changing the intrinsic properties of the guest molecule, inclusion complexes can become more soluble, bioavailable and more resistant to metabolic conditions compared to individual non-complexed molecules. Such synergistic effects have implications for practical bioapplicability of this complex system and provide a new viewpoint to therapy, beyond the traditional single drug molecule approach. By achieving a balance between guest encapsulation and release, the ADA/CB[n] system has also found use beyond just drug delivery, in fields like bioanalytics, sensing assays, bioimaging, etc. Thus, chemosensing in physiological conditions, indicator displacement assays, in vivo diagnostics and hybrid nanostructures are just some recent examples of the ADA/CB[n] applicability, be it for displacements purposes or as cargo vehicles.
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Affiliation(s)
- Marija Alešković
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute Bijenička 54 10 000 Zagreb Croatia
| | - Marina Šekutor
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute Bijenička 54 10 000 Zagreb Croatia
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2
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Lee J, Kim H, Lee H, Boraste DR, Kim K, Seo J. Protomer of Imipramine Captured in Cucurbit[7]uril. J Phys Chem A 2023; 127:10758-10765. [PMID: 38091518 DOI: 10.1021/acs.jpca.3c04556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Small molecules possessing multiple proton-accessible sites are important not only to many biological systems but also to host-guest chemistry; their protonation states are causal to boosting or hindering specific host-guest interactions. However, determining the protonation site is not trivial. Herein, we conduct electrospray ionization ion mobility spectrometry-mass spectrometry to imipramine, a known molecule with two protonation sites, based on the introduction of cucurbit[7]uril as a host molecule. For protonated imipramine, the proposed strategy allows clear distinction of the two protomers as host-guest complex ions and can be leveraged to capture the energetically less preferable protomer of the protonated imipramine.
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Affiliation(s)
- Jiyeon Lee
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Hyerim Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Hochan Lee
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Deepak R Boraste
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Kimoon Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Jongcheol Seo
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
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3
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Unveiling host-guest-solvent interactions in solution by identifying highly unstable host-guest configurations in thermal non-equilibrium gas phase. Sci Rep 2022; 12:8169. [PMID: 35581255 PMCID: PMC9114120 DOI: 10.1038/s41598-022-12226-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/05/2022] [Indexed: 11/09/2022] Open
Abstract
We propose a novel scheme of examining the host-guest-solvent interactions in solution from their gas phase structures. By adopting the permethylated β-cyclodextrin (perm β-CD)-protonated L-Lysine non-covalent complex as a prototypical system, we present the infrared multiple photon dissociation (IRMPD) spectrum of the gas phase complex produced by electrospray ionization technique. In order to elucidate the structure of perm β-CD)/LysH+ complex in the gas phase, we carry out quantum chemical calculations to assign the two strong peaks at 3,340 and 3,560 cm-1 in the IRMPD spectrum, finding that the carboxyl forms loose hydrogen bonding with the perm β-CD, whereas the ammonium group of L-Lysine is away from the perm β-CD unit. By simulating the structures of perm β-CD/H+/L-Lysine complex in solution using the supramolecule/continuum model, we find that the extremely unstable gas phase structure corresponds to the most stable conformer in solution.
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4
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Abdellaoui C, Hermanns V, Reinfelds M, Scheurer M, Dreuw A, Heckel A, Wachtveitl J. A long-lived fluorenyl cation: efficiency booster for uncaging and photobase properties. Phys Chem Chem Phys 2022; 24:5294-5300. [PMID: 35174833 DOI: 10.1039/d1cp05292f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photochemistry of fluorenols has been of special interest for many years. This is because both the fluorenol and the fluorenyl cation are antiaromatic in the ground state due to their 4n π-electrons according to the Hückel rule. The photolysis reaction of various fluorene derivatives takes place via a cation intermediate and is preferred due to its excited state aromaticity. Here we present an extremely long-lived fluorenyl cation and its effects on the uncaging of various leaving groups. We analyze the relationship between uncaging quantum yields of fluorene-based cages and the longevity of their fluorenyl cations with different spectroscopic methods in the steady state and on an ultrafast time scale and find that the uncaging quantum yield rises with the stability of the cation. In contrast to previous reports, the cation can be observed on a time scale of minutes, even in moderately protic solvents as methanol and ethanol. The stability of this cation depends on the dimethylamino-substituents on the fluorene scaffold and the properties of the solvent. In addition, with bis-dimethylamino fluorenol, a photobase is introduced that expands the small group of known photoinduced hydroxide emitters.
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Affiliation(s)
- Chahinez Abdellaoui
- Institute of Physical and Theoretical Chemistry, Goethe-University Frankfurt, Frankfurt am Main 60438, Germany.
| | - Volker Hermanns
- Institute of Organic Chemistry, Goethe-University Frankfurt, Frankfurt am Main 60438, Germany.
| | - Matiss Reinfelds
- Institute of Organic Chemistry, Goethe-University Frankfurt, Frankfurt am Main 60438, Germany. .,Institute of Chemistry and Technology of Materials (ICTM), NAWI Graz, Graz University of Technology, Graz 8010, Austria.
| | - Maximilian Scheurer
- Interdisciplinary Center for Scientific Computing, Heidelberg University, Heidelberg 69120, Germany.
| | - Andreas Dreuw
- Interdisciplinary Center for Scientific Computing, Heidelberg University, Heidelberg 69120, Germany.
| | - Alexander Heckel
- Institute of Organic Chemistry, Goethe-University Frankfurt, Frankfurt am Main 60438, Germany.
| | - Josef Wachtveitl
- Institute of Physical and Theoretical Chemistry, Goethe-University Frankfurt, Frankfurt am Main 60438, Germany.
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5
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Pejchal J, Jošt P, Múčková L, Andrýs R, Lísa M, Zdarova Karasova J. A systematic evaluation of the cucurbit[7]uril pharmacokinetics and toxicity after a single dose and short-term repeated administration in mice. Arch Toxicol 2022; 96:1411-1421. [DOI: 10.1007/s00204-022-03249-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 02/02/2022] [Indexed: 11/29/2022]
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6
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Synthesis, Characterization and Host-Guest Complexation of Asplatin: Improved In Vitro Cytotoxicity and Biocompatibility as Compared to Cisplatin. Pharmaceuticals (Basel) 2022; 15:ph15020259. [PMID: 35215372 PMCID: PMC8875750 DOI: 10.3390/ph15020259] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/08/2022] [Accepted: 02/14/2022] [Indexed: 12/23/2022] Open
Abstract
Para-sulfocalix[n]arenes are promising host molecules that can accommodate various chemotherapeutic drugs. Pt(IV)-based complexes, including satraplatin and asplatin, are promising alternatives that overcome the shortcomings of Pt(II) complexes. In this study, asplatin has been synthesized by fusing acetylsalicylic acid (aspirin) and cisplatin. Furthermore, it has been characterized using 1H NMR, mass spectrometry, elemental analysis, and UHPLC. A host-guest complex of asplatin and p-sulfocalix[4]arene (PSC4) has been developed and characterized using UV, Job’s plot analysis, HPLC, and density functional theory (DFT) calculations. The experimental and computational investigations propose that a 1:1 complex between asplatin and PSC4 is formed. The stability constant of the designed complex has been determined using Job’s plot and UHPLC and computed to be 9.1 × 104 M–1 and 8.7 × 104 M−1, which corresponds to a free energy of complexation of −6.8 kcal mol–1, while the calculated value for the inclusion free energy is −13.2 kcal mol−1. Both experimentally and theoretically estimated complexation free energy show that a stable host-guest complex can be formed in solution. The in vitro drug release study displayed the ability of the complex to release its cargo at a cancerous pH (pH of 5.5). Additionally, the asplatin/PSC4 complex is shown to be biocompatible when tested on human skin fibroblast noncancerous cells, demonstrating the highest in vitro cytotoxic activity against (MCF-7), cervical (HeLa), and lung cancer cells (A-549), with IC50 values of 0.75, 2.15, and 3.60 µg/mL, respectively. This is as compared to either cisplatin (IC50 of 5.47, 5.94 and 9.61 µg/mL, respectively) or asplatin (IC50 of 1.54, 5.05 and 3.91 µg/mL, respectively). On the other hand, the free asplatin exhibited higher cytotoxicity on cancerous cells and lower toxicity on noncancerous cells. The outcomes of the present joint theoretical and experimental investigation reinforce the interest in platinum-based anticancer therapeutics when they are protected from undesired interactions and suggest the use of the PSC4 macromolecule as a promising carrier for Pt(IV) anticancer drugs. The formed asplatin/PSC4 inclusion complex may represent an effective chemotherapeutic agent.
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7
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Mao W, Wang S, Mao D, Liu Y, Li L, Ma D. Supramolecular complexation with kinetic stabilization: cucurbit[6]uril encapsulated doxorubicin-based prodrugs for pH-responsive controlled release. NEW J CHEM 2022. [DOI: 10.1039/d1nj06237a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Kinetically-stabilized host–guest complexation for the construction of a pH-responsive drug delivery system.
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Affiliation(s)
- Weipeng Mao
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Jiaojiang, Zhejiang 318000, China
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, China
| | - Shuyi Wang
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, China
| | - Dake Mao
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, China
| | - Yamin Liu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, China
| | - Libai Li
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, China
| | - Da Ma
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Jiaojiang, Zhejiang 318000, China
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, China
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8
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Wimberger L, Prasad SKK, Peeks MD, Andréasson J, Schmidt TW, Beves JE. Large, Tunable, and Reversible pH Changes by Merocyanine Photoacids. J Am Chem Soc 2021; 143:20758-20768. [PMID: 34846132 DOI: 10.1021/jacs.1c08810] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Molecular photoswitches capable of generating precise pH changes will allow pH-dependent processes to be controlled remotely and noninvasively with light. We introduce a series of new merocyanine photoswitches, which deliver reversible bulk pH changes up to 3.2 pH units (pH 6.5 to pH 3.3) upon irradiation with 450 nm light, displaying tunable and predictable timescales for thermal recovery. We present models to show that the key parameters for optimizing the bulk pH changes are measurable: the solubility of the photoswitch, the acidity of the merocyanine form, the thermal equilibrium position between the spiropyran and the merocyanine isomers, and the increased acidity under visible light irradiation. Using ultrafast transient absorption spectroscopy, we determined the quantum yields for the ring-closing reaction and found that the lifetimes of the transient cis-merocyanine isomers ranged from 30 to 550 ns. Quantum yields did not appear to be a limitation for bulk pH switching. The models we present use experimentally determined parameters and are, in principle, able to predict the change in pH obtained for any related merocyanine photoacid.
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Affiliation(s)
- Laura Wimberger
- School of Chemistry, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Shyamal K K Prasad
- School of Chemistry, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Martin D Peeks
- School of Chemistry, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Joakim Andréasson
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg 412 96, Sweden
| | - Timothy W Schmidt
- School of Chemistry, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Jonathon E Beves
- School of Chemistry, UNSW Sydney, Sydney, New South Wales 2052, Australia
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9
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Understanding the guest binding in the cucurbit[7]uril inclusion complexes of CDK4/6 inhibitors, palbociclib, and ribociclib from a combined experimental and computational study. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130637] [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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10
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Fahmy SA, Ponte F, Fawzy IM, Sicilia E, Azzazy HMES. Betaine host-guest complexation with a calixarene receptor: enhanced in vitro anticancer effect. RSC Adv 2021; 11:24673-24680. [PMID: 35481025 PMCID: PMC9036920 DOI: 10.1039/d1ra04614d] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 07/08/2021] [Indexed: 12/12/2022] Open
Abstract
p-Sulfonatocalix[n]arenes have shown excellent potential for accommodating chemotherapeutic drugs through host-guest complexation and enhancing their anticancer activity. Betaine has been reported to exert an anticancer effect at high concentrations. In order to increase its concentration in cancer cells, we have complexed it with p-SC4, which releases its content in an acidic environment typical of cancer tissue. In this work, a host-guest complex of the chemically stable, natural, and safe active methyl donor (betaine) and p-sulfonatocalix[4]arenes (p-SC4) was designed and characterized using 1H NMR, UV, Job's plot analysis, DFT calculations, and molecular modeling for use in cancer therapeutics. The peak amplitude of the prepared host-guest complexes was linearly proportional to the concentration of betaine in the range of 1.0 × 10-5 M-1 to 2.5 × 10-4 M-1. The reaction stoichiometry between p-SC4 and betaine in the formed complex was 1 : 1. The stability constant for the complex is 8.9 × 104 M-1 which corresponds to a complexation free energy of -6.74 kcal mol-1. Complexation between betaine and p-SC4 was found to involve the insertion of the trimethylammonium group of betaine into the p-SC4 cavity, as supported by the experimental data. The complex displayed enhanced cytotoxic activities against breast adenocarcinoma cells (MCF-7) and cervical cancer cells (HeLa) compared to free betaine. In conclusion, the host-guest complexation of betaine with p-SC4 increases its concentration in cancer cells, which warrants further investigation for cancer therapy.
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Affiliation(s)
- Sherif Ashraf Fahmy
- Department of Chemistry, School of Sciences & Engineering, The American University in Cairo AUC Avenue, PO. Box 74 New Cairo 11835 Egypt +20 2 2795 7565 +20 2 2615 2559
| | - Fortuna Ponte
- Department of Chemistry and Chemical Technologies, University of Calabria Arcavacata di Rende 87036 Italy
| | - Iten M Fawzy
- Pharmaceutical Chemistry Department, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt Cairo 12311 Egypt
| | - Emilia Sicilia
- Department of Chemistry and Chemical Technologies, University of Calabria Arcavacata di Rende 87036 Italy
| | - Hassan Mohamed El-Said Azzazy
- Department of Chemistry, School of Sciences & Engineering, The American University in Cairo AUC Avenue, PO. Box 74 New Cairo 11835 Egypt +20 2 2795 7565 +20 2 2615 2559
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11
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de Vink PJ, van der Hek T, Brunsveld L. Light-driven release of cucurbit[8]uril from a bivalent cage. Chem Sci 2021; 12:6726-6731. [PMID: 34040748 PMCID: PMC8132991 DOI: 10.1039/d1sc01410b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 04/10/2021] [Indexed: 12/03/2022] Open
Abstract
Temporal control over supramolecular systems has great potential for the modulation of binding and assembly events, such as providing orthogonal control over protein activity. Especially light controlled triggering provides unique entries for supramolecular systems to interface in a controlled manner with enzymes. Here we report on the light-induced release of cucurbit[8]uril (CB[8]) from a bivalent cage molecule and its subsequent activation of a proteolytic enzyme, caspase-9, that itself is unresponsive to light. Central to the design is the bivalent binding of the cage with high affinity to CB[8], 100-fold stronger than the UV-inactivated products. The affinity switching occurs in the (sub-)micromolar concentration regime, matching the concentration characteristics required for dimerizing and activating caspase-9 by CB[8]. The light-responsive caged CB[8] concept presented offers a novel platform for tuning and application of switchable cucurbiturils and beyond.
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Affiliation(s)
- Pim J de Vink
- Laboratory of Chemical Biology, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology P. O. Box 513 5600 MB Eindhoven The Netherlands
| | - Tim van der Hek
- Laboratory of Chemical Biology, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology P. O. Box 513 5600 MB Eindhoven The Netherlands
| | - Luc Brunsveld
- Laboratory of Chemical Biology, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology P. O. Box 513 5600 MB Eindhoven The Netherlands
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12
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Sittig M, Tom JC, Elter JK, Schacher FH, Dietzek B. Quinoline Photobasicity: Investigation within Water-Soluble Light-Responsive Copolymers. Chemistry 2021; 27:1072-1079. [PMID: 32986286 PMCID: PMC7839697 DOI: 10.1002/chem.202003815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/14/2020] [Indexed: 01/13/2023]
Abstract
Quinoline photobases exhibit a distinctly higher pKa in their electronically excited state than in the ground state, thereby enabling light-controlled proton transfer reactions, for example, in molecular catalysis. The absorption of UV light translates to a pKa jump of approximately 10 units, as established for small-molecule photobases. This contribution presents the first synthesis of quinoline-based polymeric photobases prepared by reversible addition-fragmentation chain-transfer (RAFT) polymerization. The integration of quinolines as photobase chromophores within copolymers offers new possibilities for light-triggered proton transfer in nanostructured materials, that is, in nanoparticles, at surfaces, membranes and interfaces. To exploit the light-triggered reactivity of photobases within such materials, we first investigated how the ground- and excited-state properties of the quinoline unit changes upon polymer integration. To address this matter, we combined absorption and emission spectroscopy with time-resolved transient-absorption studies to reveal photoinduced proton-transfer dynamics in various solvents. The results yield important insights into the thermodynamic and kinetic properties of these polymeric quinoline photobases.
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Affiliation(s)
- Maria Sittig
- Department of Functional InterfacesLeibniz Institute of Photonic Technology JenaAlbert-Einstein-Strasse 907745JenaGermany
- Institute of Physical Chemistry and Abbe Center of PhotonicsFriedrich-Schiller-University JenaHelmholtzweg 407743JenaGermany
- Jena Center for Soft Matter (JCSM)Friedrich Schiller University JenaPhilosophenweg 707743JenaGermany
| | - Jessica C. Tom
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)Friedrich Schiller University JenaHumboldtstrasse 1007743JenaGermany
- Jena Center for Soft Matter (JCSM)Friedrich Schiller University JenaPhilosophenweg 707743JenaGermany
| | - Johanna K. Elter
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)Friedrich Schiller University JenaHumboldtstrasse 1007743JenaGermany
- Jena Center for Soft Matter (JCSM)Friedrich Schiller University JenaPhilosophenweg 707743JenaGermany
| | - Felix H. Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)Friedrich Schiller University JenaHumboldtstrasse 1007743JenaGermany
- Jena Center for Soft Matter (JCSM)Friedrich Schiller University JenaPhilosophenweg 707743JenaGermany
| | - Benjamin Dietzek
- Department of Functional InterfacesLeibniz Institute of Photonic Technology JenaAlbert-Einstein-Strasse 907745JenaGermany
- Institute of Physical Chemistry and Abbe Center of PhotonicsFriedrich-Schiller-University JenaHelmholtzweg 407743JenaGermany
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13
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Cheng G, Luo J, Liu Y, Chen X, Wu Z, Chen T. Cucurbituril-Oriented Nanoplatforms in Biomedical Applications. ACS APPLIED BIO MATERIALS 2020; 3:8211-8240. [PMID: 35019600 DOI: 10.1021/acsabm.0c01061] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Cucucrbituril (CB) belongs to a family of macrocycles that are easily accessible. Their structural specificity provides excellent molecular recognition capabilities, with the ability to be readily chemically modified. Because of these properties, researchers have found CB to be a useful molecular carrier for delivering drug molecules and therapeutic biomolecules. Their significance lies in the fact that CB not only increases the solubility and stability of an encapsulated guest but also provides the possibility to achieve targeted delivery of the guest molecule. Therefore, the emergence of CB undoubtedly provides opportunities for the development of targeted drug delivery in an era where intelligent drugs have attracted considerable attention. It has also been found that CB can enhance fluorescent dyes, allowing the preparation of biosensors with enhanced sensitivity for use in clinical settings. In the present review, the acquisition, properties, and structural modifications of CB are first comprehensively described, and then the value of this macrocycle in applications within the medical field is discussed. In addition, we have also summarized patent applications of CB in this field over recent years, aiming to illustrate the current status of developments of this molecule. Finally, we discuss the challenges faced by CB in the medical field and future trends in its development.
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Affiliation(s)
- Guowang Cheng
- Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Jingshan Luo
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Yao Liu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Xiaojia Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Zhenfeng Wu
- Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Tongkai Chen
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
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14
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Fahmy SA, Ponte F, Fawzy IM, Sicilia E, Bakowsky U, Azzazy HMES. Host-Guest Complexation of Oxaliplatin and Para-Sulfonatocalix[n]Arenes for Potential Use in Cancer Therapy. Molecules 2020; 25:E5926. [PMID: 33327642 PMCID: PMC7765097 DOI: 10.3390/molecules25245926] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/11/2020] [Accepted: 12/11/2020] [Indexed: 01/25/2023] Open
Abstract
P-sulfonatocalix[n]arenes have demonstrated a great potential for encapsulation of therapeutic drugs via host-guest complexation to improve solubility, stability, and bioavailability of encapsulated drugs. In this work, guest-host complexes of a third-generation anticancer drug (oxaliplatin) and p-4-sulfocalix[n]arenes (n = 4 and 6; p-SC4 and p-SC6, respectively) were prepared and investigated, using 1H NMR, UV, Job's plot analysis, and DFT calculations, for use as cancer therapeutics. The peak amplitude of the prepared host-guest complexes was linearly proportional to the concentration of oxaliplatin in the range of 1.0 × 10-5 M-1 to 2.1 × 10-4 M-1. The reaction stoichiometry between either p-SC4 or p-SC6 and oxaliplatin in the formed complexes was 1:1. The stability constants for the complexes were 5.07 × 104 M-1 and 6.3 × 104 M-1. These correspond to complexation free energy of -6.39 and -6.52 kcal/mol for p-SC4 and p-SC6, respectively. Complexation between oxaliplatin and p-SC4 or p-SC6 was found to involve hydrogen bonds. Both complexes exhibited enhanced biological and high cytotoxic activities against HT-29 colorectal cells and MCF-7 breast adenocarcinoma compared to free oxaliplatin, which warrants further investigation for cancer therapy.
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Affiliation(s)
- Sherif Ashraf Fahmy
- Department of Chemistry, School of Sciences & Engineering, The American University in Cairo, AUC Avenue, P.O. Box 74, New Cairo 11835, Egypt;
| | - Fortuna Ponte
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Arcavacata di Rende, Italy; (F.P.); (E.S.)
| | - Iten M. Fawzy
- Pharmaceutical Chemistry Department, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt, Cairo 12311, Egypt;
| | - Emilia Sicilia
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Arcavacata di Rende, Italy; (F.P.); (E.S.)
| | - Udo Bakowsky
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany
| | - Hassan Mohamed El-Said Azzazy
- Department of Chemistry, School of Sciences & Engineering, The American University in Cairo, AUC Avenue, P.O. Box 74, New Cairo 11835, Egypt;
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15
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Fahmy S, Ponte F, Sicilia E, El-Said Azzazy HM. Experimental and Computational Investigations of Carboplatin Supramolecular Complexes. ACS OMEGA 2020; 5:31456-31466. [PMID: 33324858 PMCID: PMC7726934 DOI: 10.1021/acsomega.0c05168] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 11/13/2020] [Indexed: 05/28/2023]
Abstract
Supramolecular systems (macromolecules), such as calix[n]arenes (SCn), cyclodextrins (CDs), and cucurbiturils (CBs), are promising vehicles for anticancer drugs. In this work, guest-host complexes of carboplatin, a second-generation platinum-based anticancer drug, and p-4-sulfocalix[n]arenes (n = 4 and 6; PS4 and PS6, respectively) were prepared and studied using 1H NMR, UV, Job's plot analysis, HPLC, and density-functional theory calculations. The experimental and the computational studies suggest the formation of 1:1 complexes between carboplatin and each of PS4 and PS6. The stability constants of the formed complexes were estimated to be 5.3 × 104 M-1 and 9.8 × 104 M-1, which correspond to free energy of complexation of -6.40 and -6.81 kcal mol-1, in the case of PS4 and PS6, respectively. The interaction free energy depends on the different inclusion modes of carboplatin in the host cavities. UV-vis findings and atoms in molecules analysis showed that hydrogen bond interactions stabilize the host-guest complexes without the full inclusion in the host cavity. The in vitro anticancer study revealed that both complexes exhibited stronger anticancer activities against breast adenocarcinoma cells (MCF-7) and lung cancer cells (A-549) compared to free carboplatin, preluding to their potential use in cancer therapy.
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Affiliation(s)
- Sherif
Ashraf Fahmy
- Department
of Chemistry, School of Sciences & Engineering, The American University in Cairo, AUC Avenue, P.O. Box 74, New Cairo 11835, Egypt
| | - Fortuna Ponte
- Department
of Chemistry and Chemical Technologies, University of Calabria, Arcavacata
di Rende 87036, Italy
| | - Emilia Sicilia
- Department
of Chemistry and Chemical Technologies, University of Calabria, Arcavacata
di Rende 87036, Italy
| | - Hassan Mohamed El-Said Azzazy
- Department
of Chemistry, School of Sciences & Engineering, The American University in Cairo, AUC Avenue, P.O. Box 74, New Cairo 11835, Egypt
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16
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Kubota R, Lyu X, Minami T. Suppression of Malachite Green-Induced Toxicity to Human Liver Cells Utilizing Host-Guest Chemistry of Cucurbit[7]uril. ANAL SCI 2020; 37:525-528. [PMID: 33229827 DOI: 10.2116/analsci.20scn02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We investigated a host-guest complex between cucurbit[7]uril and malachite green, and its effect on the toxicity to human liver cells. The host-guest complexation was evaluated by a UV/vis titration and electrospray-ionization mass spectrometry. Interestingly, the host-guest complex resulted in remarkable suppression of the toxicity of malachite green in its practical concentration range (ca. ∼6 μM). This study is one step forward to the active control of the biological effects of potent toxicants utilizing host-guest chemistry.
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Affiliation(s)
- Riku Kubota
- Institute of Industrial Science, The University of Tokyo
| | - Xiaojun Lyu
- Institute of Industrial Science, The University of Tokyo
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17
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Paul TJ, Vilseck JZ, Hayes RL, Brooks CL. Exploring pH Dependent Host/Guest Binding Affinities. J Phys Chem B 2020; 124:6520-6528. [PMID: 32628482 DOI: 10.1021/acs.jpcb.0c03671] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
When the electrostatic environment surrounding binding partners changes between unbound and bound states, the net uptake or release of a proton is possible by either binding partner. This process is pH-dependent in that the free energy required to uptake or release the proton varies with pH. This pH-dependence is typically not considered in conventional free energy methods where the use of fixed protonation states is the norm. In the present paper, we apply a simple two-step approach to calculate the pH-dependent binding free energy of a model cucubit[7]uril host/guest system. By use of λ-dynamics with an enhanced sampling protocol, adaptive landscape flattening, pKa shifts and reference binding free energies upon complexation were determined. This information enables the construction of pH-dependent binding profiles that accurately capture the pKa shifts and reproduce binding free energies at the different pH conditions that were observed experimentally. Our calculations illustrate a general framework for computing pH-dependent binding free energies but also point to some issues in modeling the molecular charge distributions within this series of molecules with CGenFF. However, by introducing some minor charge modifications to the CGenFF force field, we saw significant improvement in accuracy of the calculated pKa shifts.
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18
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Brevé TG, Filius M, Araman C, van der Helm MP, Hagedoorn P, Joo C, van Kasteren SI, Eelkema R. Conditional Copper-Catalyzed Azide-Alkyne Cycloaddition by Catalyst Encapsulation. Angew Chem Int Ed Engl 2020; 59:9340-9344. [PMID: 32180306 PMCID: PMC7318279 DOI: 10.1002/anie.202001369] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Indexed: 11/08/2022]
Abstract
Supramolecular encapsulation is known to alter chemical properties of guest molecules. We have applied this strategy of molecular encapsulation to temporally control the catalytic activity of a stable copper(I)-carbene catalyst. Encapsulation of the copper(I)-carbene catalyst by the supramolecular host cucurbit[7]uril (CB[7]) resulted in the complete inactivation of a copper-catalyzed alkyne-azide cycloaddition (CuAAC) reaction. The addition of a chemical signal achieved the near instantaneous activation of the catalyst, by releasing the catalyst from the inhibited CB[7] catalyst complex. To broaden the scope of our on-demand CuAAC reaction, we demonstrated the protein labeling of vinculin with the copper(I)-carbene catalyst, to inhibit its activity by encapsulation with CB[7] and to initiate labeling at any moment by adding a specific signal molecule. Ultimately, this strategy allows for temporal control over copper-catalyzed click chemistry, on small molecules as well as protein targets.
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Affiliation(s)
- Tobias G. Brevé
- Department of Chemical EngineeringDelft University of Technologyvan der Maasweg 92629 HZDelftThe Netherlands
| | - Mike Filius
- Department of BioNanoScienceDelft University of Technologyvan der Maasweg 92629 HZDelftThe Netherlands
| | - Can Araman
- Leiden Institute of ChemistryLeiden UniversityEinsteinweg 552333 CCLeidenThe Netherlands
| | - Michelle P. van der Helm
- Department of Chemical EngineeringDelft University of Technologyvan der Maasweg 92629 HZDelftThe Netherlands
| | - Peter‐Leon Hagedoorn
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629 HZDelftThe Netherlands
| | - Chirlmin Joo
- Department of BioNanoScienceDelft University of Technologyvan der Maasweg 92629 HZDelftThe Netherlands
| | - Sander I. van Kasteren
- Leiden Institute of ChemistryLeiden UniversityEinsteinweg 552333 CCLeidenThe Netherlands
| | - Rienk Eelkema
- Department of Chemical EngineeringDelft University of Technologyvan der Maasweg 92629 HZDelftThe Netherlands
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19
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Bei Z, Huang Y, Chen Y, Cao Y, Li J. Photo-induced carbocation-enhanced charge transport in single-molecule junctions. Chem Sci 2020; 11:6026-6030. [PMID: 34094094 PMCID: PMC8159380 DOI: 10.1039/d0sc00505c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 05/22/2020] [Indexed: 12/20/2022] Open
Abstract
We report the first example of photo-induced carbocation-enhanced charge transport in triphenylmethane junctions using the scanning tunneling microscopy break junction (STM-BJ) technique. The electrical conductance of the carbocation state is enhanced by up to 1.5 orders of magnitude compared to the initial state, with stability lasting for at least 7 days. Moreover, we can achieve light-induced reversible conductance switching with a high ON-OFF ratio in carbocation-based single-molecule junctions. Theoretical calculations reveal that the conductance increase is due to a significant decrease of the HOMO-LUMO gap and also the enhanced transmission close to the Fermi levels when the carbocation forms. Our findings encourage continued research toward developing optoelectronics and carbocation-based devices at the single-molecule level.
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Affiliation(s)
- Zhongwu Bei
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University Wuhan 430056 China
| | - Yuan Huang
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University Wuhan 430056 China
| | - Yangwei Chen
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University Wuhan 430056 China
| | - Yiping Cao
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University Wuhan 430056 China
| | - Jin Li
- Research Center for Analytical Sciences, College of Chemistry, Nankai University Tianjin 300071 China
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20
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Brevé TG, Filius M, Araman C, Helm MP, Hagedoorn P, Joo C, Kasteren SI, Eelkema R. Conditional Copper‐Catalyzed Azide–Alkyne Cycloaddition by Catalyst Encapsulation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001369] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Tobias G. Brevé
- Department of Chemical EngineeringDelft University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Mike Filius
- Department of BioNanoScienceDelft University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Can Araman
- Leiden Institute of ChemistryLeiden University Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Michelle P. Helm
- Department of Chemical EngineeringDelft University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Peter‐Leon Hagedoorn
- Department of BiotechnologyDelft University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Chirlmin Joo
- Department of BioNanoScienceDelft University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Sander I. Kasteren
- Leiden Institute of ChemistryLeiden University Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Rienk Eelkema
- Department of Chemical EngineeringDelft University of Technology van der Maasweg 9 2629 HZ Delft The Netherlands
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21
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Das D, Assaf KI, Nau WM. Applications of Cucurbiturils in Medicinal Chemistry and Chemical Biology. Front Chem 2019; 7:619. [PMID: 31572710 PMCID: PMC6753627 DOI: 10.3389/fchem.2019.00619] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 08/28/2019] [Indexed: 02/02/2023] Open
Abstract
The supramolecular chemistry of cucurbit[n]urils (CBn) has been rapidly developing to encompass diverse medicinal applications, including drug formulation and delivery, controlled drug release, and sensing for bioanalytical purposes. This is made possible by their unique recognition properties and very low cytotoxicity. In this review, we summarize the host-guest complexation of biologically important molecules with CBn, and highlight their implementation in medicinal chemistry and chemical biology.
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Affiliation(s)
- Debapratim Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, India
| | - Khaleel I. Assaf
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Bremen, Germany
- Department of Chemistry, Faculty of Science, Al-Balqa Applied University, Al-Salt, Jordan
| | - Werner M. Nau
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Bremen, Germany
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22
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Ferreira P, Ventura B, Barbieri A, Da Silva JP, Laia CAT, Parola AJ, Basílio N. A Visible–Near‐Infrared Light‐Responsive Host–Guest Pair with Nanomolar Affinity in Water. Chemistry 2019; 25:3477-3482. [DOI: 10.1002/chem.201806105] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 01/09/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Pedro Ferreira
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE)Departmento de QuímicaFaculdade de Ciências e TecnologiaUniversidade NOVA de Lisboa 2829-516 Caparica Portugal
| | - Barbara Ventura
- Istituto per la Sintesi Organica e la Fotoreattivitá (ISOF)Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti 101 40129 Bologna Italy
| | - Andrea Barbieri
- Istituto per la Sintesi Organica e la Fotoreattivitá (ISOF)Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti 101 40129 Bologna Italy
| | - José P. Da Silva
- CCMAR–Centre of Marine SciencesUniversity of Algarve Campus de Gambelas 8005-139 Faro Portugal
| | - César A. T. Laia
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE)Departmento de QuímicaFaculdade de Ciências e TecnologiaUniversidade NOVA de Lisboa 2829-516 Caparica Portugal
| | - A. Jorge Parola
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE)Departmento de QuímicaFaculdade de Ciências e TecnologiaUniversidade NOVA de Lisboa 2829-516 Caparica Portugal
| | - Nuno Basílio
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE)Departmento de QuímicaFaculdade de Ciências e TecnologiaUniversidade NOVA de Lisboa 2829-516 Caparica Portugal
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23
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Koeppe B, Rühl S, Römpp F. Towards More Effective, Reversible pH Control by Visible Light Alone: A Thioindigo Photoswitch Undergoing a Strong p
K
a
Modulation by Isomer‐Specific Hydrogen Bonding. CHEMPHOTOCHEM 2018. [DOI: 10.1002/cptc.201800209] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Benjamin Koeppe
- Institut für ChemieHumboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Steffen Rühl
- Institut für ChemieHumboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Florian Römpp
- Institut für ChemieHumboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
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24
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Alnajjar MA, Bartelmeß J, Hein R, Ashokkumar P, Nilam M, Nau WM, Rurack K, Hennig A. Rational design of boron-dipyrromethene (BODIPY) reporter dyes for cucurbit[7]uril. Beilstein J Org Chem 2018; 14:1961-1971. [PMID: 30202450 PMCID: PMC6122296 DOI: 10.3762/bjoc.14.171] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 07/06/2018] [Indexed: 11/24/2022] Open
Abstract
We introduce herein boron-dipyrromethene (BODIPY) dyes as a new class of fluorophores for the design of reporter dyes for supramolecular host-guest complex formation with cucurbit[7]uril (CB7). The BODIPYs contain a protonatable aniline nitrogen in the meso-position of the BODIPY chromophore, which was functionalized with known binding motifs for CB7. The unprotonated dyes show low fluorescence due to photoinduced electron transfer (PET), whereas the protonated dyes are highly fluorescent. Encapsulation of the binding motif inside CB7 positions the aniline nitrogen at the carbonyl rim of CB7, which affects the pKa value, and leads to a host-induced protonation and thus to a fluorescence increase. The possibility to tune binding affinities and pKa values is demonstrated and it is shown that, in combination with the beneficial photophysical properties of BODIPYs, several new applications of host-dye reporter pairs can be implemented. This includes indicator displacement assays with favourable absorption and emission wavelengths in the visible spectral region, fluorescence correlation spectroscopy, and noncovalent surface functionalization with fluorophores.
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Affiliation(s)
- Mohammad A Alnajjar
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Jürgen Bartelmeß
- Chemical and Optical Sensing Division, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Robert Hein
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Pichandi Ashokkumar
- Chemical and Optical Sensing Division, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
- Laboratory of Bioimaging and Pathology, UMR 7021 CNRS, Faculty of Pharmacy, University of Strasbourg, 74 Route du Rhin, F-67401 Illkirch-Graffenstaden, France
| | - Mohamed Nilam
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Werner M Nau
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Knut Rurack
- Chemical and Optical Sensing Division, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Andreas Hennig
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
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25
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Zhang X, Xu X, Li S, Wang LH, Zhang J, Wang R. A systematic evaluation of the biocompatibility of cucurbit[7]uril in mice. Sci Rep 2018; 8:8819. [PMID: 29891955 PMCID: PMC5995857 DOI: 10.1038/s41598-018-27206-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 05/30/2018] [Indexed: 12/30/2022] Open
Abstract
As one of the most water-soluble members in the macrocyclic cucurbit[n]uril (CB[n]) family, CB[7] has attracted increasing attention in pharmaceutical and biomedical fields. Despite extensive studies regarding the potential use of CB[7] for biomedical applications, its full safety and toxicity profile in a clinically relevant model is still lacking. Herein we report the full biocompatibility profile of CB[7], administered orally, peritoneally or intravenously in mice, respectively. Body-weight changes showed no significant differences among various groups of mice after they were administered with CB[7] at a single dose of 5 g/kg orally, 500 mg/kg peritoneally and 150 mg/kg intravenously, respectively. Hematology tests, as well as hepatic and renal function biochemical markers tests, of the blood collected from these mice sacrificed 21 days after CB[7] administration all exhibited normal ranges of values that were comparable with those of the control group. Moreover, histopathological analysis on the sections of major organs (including the heart, liver, spleen, lungs and kidneys) and gastrointestinal tissues revealed no detectable injuries and inflammatory cells infiltration. Taken together, these results suggest an excellent biocompatibility profile of CB[7] in mice, which provide important foundations for further investigations and even clinical applications of CB[7] in biomedical areas.
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Affiliation(s)
- Xiangjun Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, and Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China
| | - Xiaoqiu Xu
- Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, Chongqing, 400038, China.,Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing, 400038, China
| | - Shengke Li
- State Key Laboratory of Quality Research in Chinese Medicine, and Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China
| | - Lian-Hui Wang
- Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials, Nanjing University of Posts & Telecommunications, Nanjing, 210046, China
| | - Jianxiang Zhang
- Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, Chongqing, 400038, China. .,Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing, 400038, China.
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine, and Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China.
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26
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Behera SK, Pegu M, Krishnamoorthy G. Modulation of Twisted Intramolecular Charge Transfer Emission of 2-(4′- N,N
-Dimethylaminophenyl)imidazopyridines in Aqueous Cucurbit[7]uril +. ChemistrySelect 2018. [DOI: 10.1002/slct.201703074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Santosh Kumar Behera
- Department of Chemistry; Indian Institute of Technology Guwahati-781039; India Assam
| | - Meenakshi Pegu
- Department of Chemistry; Indian Institute of Technology Guwahati-781039; India Assam
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27
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Fahmy SA, Ponte F, Abd El-Rahman MK, Russo N, Sicilia E, Shoeib T. Investigation of the host-guest complexation between 4-sulfocalix[4]arene and nedaplatin for potential use in drug delivery. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 193:528-536. [PMID: 29306207 DOI: 10.1016/j.saa.2017.12.070] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 12/10/2017] [Accepted: 12/26/2017] [Indexed: 05/28/2023]
Affiliation(s)
- Sherif Ashraf Fahmy
- Department of Chemistry, The American University in Cairo, New Cairo 11835, Egypt
| | - Fortuna Ponte
- Department of Chemistry and Chemical Technologies, University of Calabria, Arcavacata di Rende, 87036, Italy
| | - Mohamed K Abd El-Rahman
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El Aini Street, Cairo, Egypt 11562
| | - Nino Russo
- Department of Chemistry and Chemical Technologies, University of Calabria, Arcavacata di Rende, 87036, Italy; Division de Ciencias Basicas e Ingenieria, Departamento de Quimica, Universidad, Autonoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco No. 186, Col. Vicentina, CP 09340 Mexico, Distrito Federal, Mexico
| | - Emilia Sicilia
- Department of Chemistry and Chemical Technologies, University of Calabria, Arcavacata di Rende, 87036, Italy.
| | - Tamer Shoeib
- Department of Chemistry, The American University in Cairo, New Cairo 11835, Egypt.
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28
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Meng LJ, Zhao WX, Chen LX, Sun WQ, Lin RL, Zhu QJ, Tao Z, Liu JX. Single and Double Binding of 1,10-Phenanthroline and 4,7-Dimethyl-1,10-phenanthroline to HMeQ[7]: Contrasting p K
a Shifts Induced by HMeQ[7]. ChemistrySelect 2018. [DOI: 10.1002/slct.201703040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ling-Jian Meng
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province; Guizhou University; Guiyang 550025 China
| | - Wen-Xuan Zhao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province; Guizhou University; Guiyang 550025 China
| | - Li-Xia Chen
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province; Guizhou University; Guiyang 550025 China
| | - Wen-Qi Sun
- College of Chemistry and Chemical Engineering; Anhui University of Technology; Maanshan 243002 China
| | - Rui-Lian Lin
- College of Chemistry and Chemical Engineering; Anhui University of Technology; Maanshan 243002 China
| | - Qian-Jiang Zhu
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province; Guizhou University; Guiyang 550025 China
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province; Guizhou University; Guiyang 550025 China
| | - Jing-Xin Liu
- College of Chemistry and Chemical Engineering; Anhui University of Technology; Maanshan 243002 China
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29
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Zubillaga A, Ferreira P, Parola AJ, Gago S, Basílio N. pH-Gated photoresponsive shuttling in a water-soluble pseudorotaxane. Chem Commun (Camb) 2018; 54:2743-2746. [DOI: 10.1039/c8cc00688a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Phototriggered ring shuttling in a water-soluble fluorescent pseudorotaxane can be enabled and disabled at different pH values.
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Affiliation(s)
- A. Zubillaga
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departmento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa
- 2829-516 Caparica
- Portugal
| | - P. Ferreira
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departmento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa
- 2829-516 Caparica
- Portugal
| | - A. J. Parola
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departmento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa
- 2829-516 Caparica
- Portugal
| | - S. Gago
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departmento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa
- 2829-516 Caparica
- Portugal
| | - N. Basílio
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departmento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa
- 2829-516 Caparica
- Portugal
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30
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Škalamera Đ, Matković M, Uzelac L, Kralj M, Mlinarić-Majerski K, Bohne C, Basarić N. Photodeamination to quinone methides in cucurbit[n]urils: potential application in drug delivery. Org Biomol Chem 2018; 16:8908-8912. [PMID: 30422137 DOI: 10.1039/c8ob02605j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A prodrug is encapsulated in CB[7] and is photochemically transformed into an active drug inside this supramolecular complex.
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Affiliation(s)
- Đani Škalamera
- Department of Organic Chemistry and Biochemistry
- Ruđer Bošković Institute
- 10 000 Zagreb
- Croatia
| | - Marija Matković
- Department of Organic Chemistry and Biochemistry
- Ruđer Bošković Institute
- 10 000 Zagreb
- Croatia
| | - Lidija Uzelac
- Division of Molecular Medicine
- Ruđer Bošković Institute
- 10 000 Zagreb
- Croatia
| | - Marijeta Kralj
- Division of Molecular Medicine
- Ruđer Bošković Institute
- 10 000 Zagreb
- Croatia
| | - Kata Mlinarić-Majerski
- Department of Organic Chemistry and Biochemistry
- Ruđer Bošković Institute
- 10 000 Zagreb
- Croatia
| | - Cornelia Bohne
- Department of Chemistry
- University of Victoria
- Victoria BC
- Canada
- Centre for Advanced Materials and Related Technologies (CAMTEC)
| | - Nikola Basarić
- Department of Organic Chemistry and Biochemistry
- Ruđer Bošković Institute
- 10 000 Zagreb
- Croatia
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31
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Lazar AI, Rohacova J, Nau WM. Comparison of Complexation-Induced pKa Shifts in the Ground and Excited States of Dyes as Well as Different Macrocyclic Hosts and Their Manifestation in Host-Retarded Excited-Dye Deprotonation. J Phys Chem B 2017; 121:11390-11398. [DOI: 10.1021/acs.jpcb.7b10651] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Alexandra I. Lazar
- Department of Life Sciences
and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Jana Rohacova
- Department of Life Sciences
and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Werner M. Nau
- Department of Life Sciences
and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
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32
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Macartney DH. Cucurbit[n]uril Host-Guest Complexes of Acids, Photoacids, and Super Photoacids. Isr J Chem 2017. [DOI: 10.1002/ijch.201700096] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Donal H. Macartney
- Department of Chemistry; Queen's University; 90 Bader Lane, Kingston ON Canada K7L3N6
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33
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Sonzini S, McCune JA, Ravn P, Scherman OA, van der Walle CF. A simple supramolecular assay for drug detection in urine. Chem Commun (Camb) 2017; 53:8842-8845. [PMID: 28731075 DOI: 10.1039/c7cc04081d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A supramolecular colorimetric assay utilising the macrocyclic host cucurbit[7]uril (CB[7]) with a commercial dye molecule, neutral red (NR), was evaluated as a novel method for drug detection in urine of a model therapeutic peptide drug Octreotide.
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Affiliation(s)
- Silvia Sonzini
- Formulation Sciences, MedImmune Ltd, Granta Park, Cambridge CB21 6GH, UK.
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34
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Behera SK, Krishnamoorthy G. Perturbation of cationic equilibrium by cucurbit-7-uril. Phys Chem Chem Phys 2017; 19:19234-19242. [PMID: 28702607 DOI: 10.1039/c7cp03583g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The effect of cucurbit-7-uril (CB-7) on a cationic mixture with same charge has been investigated by studying monocationic mixtures of 2-(4'-N,N-dimethylaminophenyl)imidazo[4,5-b]pyridine (DMAPIP-b) and 2-(4'-N,N-dimethylaminophenyl)imidazo[4,5-c]pyridine (DMAPIP-c). The pKa of both the guests increases in CB-7. DMAPIP-b forms all three monocations in the ground and the excited states in aqueous as well as in CB-7 solution. However, CB-7 shifts the equilibrium more towards the less polar MC2 and MC3. On the other hand, DMAPIP-c exists only as MC1 and MC3 in aqueous solution, however, in CB-7 it exists not only as MC1 and MC3 but also as MC2 in CB-7 in the ground state. In the excited state, as in aqueous solution MC1 forms MC2 by biprotonic phototautomerism in CB-7. The association constants of monocations suggest a pyridyl nitrogen position dependence. All the MC-CB-7 complexes are optimized by density functional theory (DFT).
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Affiliation(s)
- Santosh Kumar Behera
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahti-781039, India.
| | - G Krishnamoorthy
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahti-781039, India.
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35
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Affiliation(s)
- Patricia Remón
- CIQSO-Center for Research in Sustainable Chemistry and Department of Chemistry; University of Huelva; Campus de El Carmen s/n 21071 Huelva Spain
| | - Uwe Pischel
- CIQSO-Center for Research in Sustainable Chemistry and Department of Chemistry; University of Huelva; Campus de El Carmen s/n 21071 Huelva Spain
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36
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Gao F, Zheng W, Gao L, Cai P, Liu R, Wang Y, Yuan Q, Zhao Y, Gao X. Au Nanoclusters and Photosensitizer Dual Loaded Spatiotemporal Controllable Liposomal Nanocomposites Enhance Tumor Photodynamic Therapy Effect by Inhibiting Thioredoxin Reductase. Adv Healthc Mater 2017; 6. [PMID: 28322024 DOI: 10.1002/adhm.201601453] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 02/16/2017] [Indexed: 12/16/2022]
Abstract
Photodynamic therapy (PDT) is a minimally invasive therapeutic procedure of tumors with high selectivity and low side effect. However, it is usually not efficient in long-lasting tumor control. One of the main reasons is tumor cells develop some protective mechanisms that help them to deal with oxidative stress in the environment. The thioredoxin system in cancer is an important antioxidant defense system. Au nanoclusters could effectively inhibit thioredoxin reductase (TrxR) in tumor cell cytoplasm. Herein, Au nanoclusters and photosensitizer Chlorine 6 (Ce6) are co-loaded in spatiotemporal controllable liposomal nanocomposites. pH responsive molecule inserted in lipid bilayer greatly contributes to the instability of the lipid membrane in lysosomal at low pH environment. Then the payloads can rapidly release into cytoplasm. Au nanoclusters effectively inhibit TrxR in cytoplasm and enhance the photodynamic-induced intracellular reactive oxygen-free radical concentration, improving the effect of PDT. Breast cancer is chosen as a tumor model and the Au nanoclusters and photosensitizer co-loaded liposomal nanocomposites are studied to improve the effect of PDT both in vitro and in vivo, and its corresponding mechanism is investigated. This study develops a new application of gold nanoclusters and provides a new train of thoughts for enhancing the effect of PDT.
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Affiliation(s)
- Fuping Gao
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Weiping Zheng
- The First Affiliated Hospital of Guangxi University of Chinese Medicine; Nanning 530023 P. R. China
| | - Liang Gao
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Pengju Cai
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Ru Liu
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Yaling Wang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Qing Yuan
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Yuliang Zhao
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Xueyun Gao
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 P. R. China
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37
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Basílio N, Gago S, Parola AJ, Pina F. Contrasting p K a Shifts in Cucurbit[7]uril Host-Guest Complexes Governed by an Interplay of Hydrophobic Effects and Electrostatic Interactions. ACS OMEGA 2017; 2:70-75. [PMID: 31457209 PMCID: PMC6640924 DOI: 10.1021/acsomega.6b00427] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 12/29/2016] [Indexed: 05/22/2023]
Abstract
Cucurbit[7]uril inclusion complexes with guests bearing dimethylamino groups show the expected upward pK a shifts, whereas their diethylamino counterparts display a decrease in pK a due to the preferential stabilization of the unprotonated form. These results identify the diethylamino group as the substituent of choice to avoid receptor-assisted protonation of guest molecules and present new evidence for the role of the hydrophobic effect as a driving force in cucurbituril complexation.
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Affiliation(s)
- Nuno Basílio
- Laboratório Associado
para a Química Verde (LAQV), Rede de Química e Tecnologia
(REQUIMTE), Departmento de Química, Faculdade de Ciências
e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Sandra Gago
- Laboratório Associado
para a Química Verde (LAQV), Rede de Química e Tecnologia
(REQUIMTE), Departmento de Química, Faculdade de Ciências
e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - A. Jorge Parola
- Laboratório Associado
para a Química Verde (LAQV), Rede de Química e Tecnologia
(REQUIMTE), Departmento de Química, Faculdade de Ciências
e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Fernando Pina
- Laboratório Associado
para a Química Verde (LAQV), Rede de Química e Tecnologia
(REQUIMTE), Departmento de Química, Faculdade de Ciências
e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
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38
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Mikulu L, Michalicova R, Iglesias V, Yawer MA, Kaifer AE, Lubal P, Sindelar V. pH Control on the Sequential Uptake and Release of Organic Cations by Cucurbit[7]uril. Chemistry 2017; 23:2350-2355. [DOI: 10.1002/chem.201604417] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Lukas Mikulu
- Department of Chemistry; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
| | - Romana Michalicova
- Department of Chemistry; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
| | - Vivian Iglesias
- Center for Supramolecular Science and Department of Chemistry; University of Miami; Coral Gables FL 33124-0431 USA
| | - Mirza A. Yawer
- Department of Chemistry; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
- RECETOX; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
| | - Angel E. Kaifer
- Center for Supramolecular Science and Department of Chemistry; University of Miami; Coral Gables FL 33124-0431 USA
| | - Premysl Lubal
- Department of Chemistry; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
- Central European Institute of Technology (CEITEC); Masaryk University; Kamenice 5 625 00 Brno Czech Republic
| | - Vladimir Sindelar
- Department of Chemistry; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
- RECETOX; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
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39
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Xie Y, Ilic S, Skaro S, Maslak V, Glusac KD. Excited-State Hydroxide Ion Release From a Series of Acridinol Photobases. J Phys Chem A 2017; 121:448-457. [DOI: 10.1021/acs.jpca.6b10980] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Yun Xie
- Department
of Chemistry, Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Stefan Ilic
- Department
of Chemistry, Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Sanja Skaro
- Faculty
of Chemistry, University of Belgrade, Studentski Trg 12-16, Belgrade 11000, Serbia
| | - Veselin Maslak
- Faculty
of Chemistry, University of Belgrade, Studentski Trg 12-16, Belgrade 11000, Serbia
| | - Ksenija D. Glusac
- Department
of Chemistry, Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
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40
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Shinde MN, Khurana R, Barooah N, Bhasikuttan AC, Mohanty J. Metal ion-induced supramolecular pKa tuning and fluorescence regeneration of a p-sulfonatocalixarene encapsulated neutral red dye. Org Biomol Chem 2017; 15:3975-3984. [DOI: 10.1039/c7ob00506g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Supramolecular pKa shift and fluorescence quenching in a neutral red dye in the presence of p-sulfonatocalix[4/6]arenes have been demonstrated, which are relevant for the off–on switch, ion sensitive electrodes and drug delivery vehicles.
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Affiliation(s)
- M. N. Shinde
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
- Student under BARC-SPPU PhD Program
| | - R. Khurana
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
- Homi Bhabha National Institute
| | - N. Barooah
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
| | - A. C. Bhasikuttan
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
- Homi Bhabha National Institute
| | - J. Mohanty
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
- Homi Bhabha National Institute
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41
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42
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Basílio N, Pischel U. Drug Delivery by Controlling a Supramolecular Host-Guest Assembly with a Reversible Photoswitch. Chemistry 2016; 22:15208-15211. [DOI: 10.1002/chem.201603331] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Nuno Basílio
- Laboratório Associado para a Química Verde (LAQV); Rede de Química e Tecnologia (REQUIMTE); Departmento de Química; Faculdade de Ciências e Tecnologia; Universidade NOVA de Lisboa; 2829-516 Caparica Portugal
| | - Uwe Pischel
- CIQSO - Center for Research in Sustainable Chemistry and; Department of Chemistry; University of Huelva, Campus de El Carmen s/n; 21071 Huelva Spain
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43
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Host–guest interactions in tetramethyl-cucurbit[6]uril with anti-tuberculosis drug isoniazid. INORG CHEM COMMUN 2016. [DOI: 10.1016/j.inoche.2016.07.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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44
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Basílio N, Cruz L, de Freitas V, Pina F. A Multistate Molecular Switch Based on the 6,8-Rearrangement in Bromo-apigeninidin Operated with pH and Host–Guest Inputs. J Phys Chem B 2016; 120:7053-61. [DOI: 10.1021/acs.jpcb.6b03694] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Nuno Basílio
- LAQV,
REQUIMTE, Departamento de Química, Faculdade de Ciências
e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Luís Cruz
- LAQV,
REQUIMTE, Departamento de Química e Bioquímica, Faculdade
de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Victor de Freitas
- LAQV,
REQUIMTE, Departamento de Química e Bioquímica, Faculdade
de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Fernando Pina
- LAQV,
REQUIMTE, Departamento de Química, Faculdade de Ciências
e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
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45
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Zhu L, Zhu M, Zhao Y. Controlled Movement of Cucurbiturils in Host-Guest Systems. Chempluschem 2016; 82:30-41. [DOI: 10.1002/cplu.201600309] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Indexed: 01/18/2023]
Affiliation(s)
- Liangliang Zhu
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; 220 Handan Road Shanghai 200433 P. R. China
| | - Mingjie Zhu
- State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; 220 Handan Road Shanghai 200433 P. R. China
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
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46
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Parente Carvalho C, Norouzy A, Ribeiro V, Nau WM, Pischel U. Cucurbiturils as supramolecular inhibitors of DNA restriction by type II endonucleases. Org Biomol Chem 2016; 13:2866-9. [PMID: 25581012 DOI: 10.1039/c4ob02122c] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cucurbiturils (CB6 and CB7) were shown to inhibit the enzymatically catalyzed restriction of plasmids and linear DNA. This effect can be inverted by supramolecular masking of the macrocycles through competitive complexation with polyamines. These experiments provide supramolecular control of biocatalytic processes.
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Affiliation(s)
- Cátia Parente Carvalho
- CIQSO-Center for Research in Sustainable Chemistry and Department of Chemical Engineering, Physical Chemistry and Organic Chemistry, University of Huelva, Campus El Carmen s/n, E-21071 Huelva, Spain.
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47
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Affiliation(s)
- Nial J. Wheate
- Faculty of Pharmacy, The University of Sydney, Sydney, NSW, Australia
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48
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49
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He S, Sun X, Zhang H. Influence of the protonation state on the binding mode of methyl orange with cucurbiturils. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.11.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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50
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Koninti RK, Sappati S, Satpathi S, Gavvala K, Hazra P. Spectroscopy and Dynamics of Cryptolepine in the Nanocavity of Cucurbit[7]uril and DNA. Chemphyschem 2016; 17:506-15. [PMID: 26650669 DOI: 10.1002/cphc.201501011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 12/07/2015] [Indexed: 02/03/2023]
Affiliation(s)
- Raj Kumar Koninti
- Department of Chemistry; Indian Institute of Science Education and Research (IISER); Pune 411008 Maharashtra India
| | - Subrahmanyam Sappati
- Department of Chemistry; Indian Institute of Science Education and Research (IISER); Pune 411008 Maharashtra India
| | - Sagar Satpathi
- Department of Chemistry; Indian Institute of Science Education and Research (IISER); Pune 411008 Maharashtra India
| | - Krishna Gavvala
- Department of Chemistry; Indian Institute of Science Education and Research (IISER); Pune 411008 Maharashtra India
| | - Partha Hazra
- Department of Chemistry; Indian Institute of Science Education and Research (IISER); Pune 411008 Maharashtra India
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