1
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Li W, Dong H, Niu K, Wang HY, Cheng W, Song H, Ying AK, Zhai X, Li K, Yu H, Guo DS, Wang Y. Analyzing urinary hippuric acid as a metabolic health biomarker through a supramolecular architecture. Talanta 2024; 278:126480. [PMID: 38972275 DOI: 10.1016/j.talanta.2024.126480] [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: 02/01/2024] [Revised: 06/10/2024] [Accepted: 06/25/2024] [Indexed: 07/09/2024]
Abstract
The prevalence of metabolic disorders has been found to increase concomitantly with alternations in habitual diet and lifestyle, indicating the importance of metabolic health monitoring for early warning of high-risk status and suggesting effective intervention strategies. Hippuric acid (HA), as one of the most abundant metabolites from the gut microbiota, holds potential as a regulator of metabolic health. Accordingly, it is imperative to establish an efficient, sensitive, and affordable method for large-scale population monitoring, revealing the association between HA level and metabolic disorders. Upon systematic screening of macrocycle•dye reporter pair, a supramolecular architecture (guanidinomethyl-modified calix[5]arene, GMC5A) was employed to sense urinary HA by employing fluorescein (Fl), whose complexation behavior was demonstrated by theoretical calculations, accomplishing quantification of HA in urine from 249 volunteers in the range of 0.10 mM and 10.93 mM. Excitedly, by restricted cubic spline, urinary HA concentration was found to have a significantly negative correlation with the risk of metabolic disorders when it exceeded 0.76 mM, suggesting the importance of dietary habits, especially the consumption of fruits, coffee, and tea, which was unveiled from a simple questionnaire survey. In this study, we accomplished a high throughput and sensitive detection of urinary HA based on supramolecular sensing with the GMC5A•Fl reporter pair, which sheds light on the rapid quantification of urinary HA as an indicator of metabolic health status and early intervention by balancing the daily diet.
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Affiliation(s)
- Wenhui Li
- National Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Hua Dong
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193, China
| | - Kejing Niu
- National Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Huan-Yu Wang
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Wenqian Cheng
- National Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Hualong Song
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193, China
| | - An-Kang Ying
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Xiaobing Zhai
- Faculty of Applied Sciences, Macao Polytechnic University, Macau, China
| | - Kefeng Li
- Faculty of Applied Sciences, Macao Polytechnic University, Macau, China
| | - Huijuan Yu
- National Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Haihe Laboratory of Modern Chinese Medicine, Tianjin, 301617, China.
| | - Dong-Sheng Guo
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China.
| | - Yuefei Wang
- National Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China; Haihe Laboratory of Modern Chinese Medicine, Tianjin, 301617, China.
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2
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Xia W, Lin H, Zhou X, Wang Y, Cao S, Liu J, Xu A, Dong W, Jiang M. Screening of polyurethane-degrading microbes using a quenching fluorescence probe by microfluidic droplet sorting. CHEMOSPHERE 2024; 364:143060. [PMID: 39121966 DOI: 10.1016/j.chemosphere.2024.143060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 07/28/2024] [Accepted: 08/07/2024] [Indexed: 08/12/2024]
Abstract
Excessive use of polyurethane (PU) polymers has led contributed to serious environmental pollution. The plastic recycling technology using microorganisms and enzymes as catalysts offers a promising green and low-carbon approach for managing plastic waste. However, current methods for screening PU-degrading strains suffer from drawbacks such as being time-consuming and inefficient. Herein, we present a novel approach for screening PU-degrading microorganisms using a quenching fluorescent probe along with the fluorescence-activated droplet sorting (FADS). The FPAP could specifically recognize the 4,4'-methylenedianiline (MDA) derivates released from PU degradation, with fluorescence quenching as a response. Based on the approach, we successfully screen two PU-degrading strains (Burkholderia sp. W38 and Bacillus sp. C1). After 20 d of cultivation, strain W38 and C1 could degrade 41.58% and 31.45% of polyester-PU film, respectively. Additionally, three metabolites were identified during the degradation of PU monomer (2,4-toluene diamine, 2,4-TDA) and a proposed degradation pathway was established. Consequently, the fluorescence probe integrated with microfluidic droplet systems, demonstrates potential for the development of innovative PU-biocatalysts. Furthermore, the identification of the 2,4-TDA degradation pathway provides valuable insights that can propel advancements in the field of PU biodegradation.
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Affiliation(s)
- Wei Xia
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Haohong Lin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xinyu Zhou
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Yihu Wang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Shixiang Cao
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Jiawei Liu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China.
| | - Anming Xu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China.
| | - Weiliang Dong
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Min Jiang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
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3
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Jameel F, Stein M. Chemical accuracy for ligand-receptor binding Gibbs energies through multi-level SQM/QM calculations. Phys Chem Chem Phys 2024; 26:21197-21203. [PMID: 39073067 PMCID: PMC11305096 DOI: 10.1039/d4cp01529k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Accepted: 07/18/2024] [Indexed: 07/30/2024]
Abstract
Calculating the Gibbs energies of binding of ligand-receptor systems with a thermochemical accuracy of ± 1 kcal mol-1 is a challenge to computational approaches. After exploration of the conformational space of the host, ligand and their resulting complexes upon coordination by semi-empirical GFN2 MD and meta-MD simulations, the systematic refinement through a multi-level improvement of binding modes in terms of electronic energies and solvation is able to give Gibbs energies of binding of drug molecules to CB[8] and β-CD macrocyclic receptors with such an accuracy. The accurate treatment of a small number of structures outperforms system-specific force-matching and alchemical transfer model approaches without an extensive sampling and integration.
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Affiliation(s)
- Froze Jameel
- Molecular Simulations and Design Group, Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106 Magdeburg, Germany.
| | - Matthias Stein
- Molecular Simulations and Design Group, Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106 Magdeburg, Germany.
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4
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Bigham NP, Novorolsky RJ, Davis KR, Zou H, MacMillan SN, Stevenson MJ, Robertson GS, Wilson JJ. Supramolecular delivery of dinuclear ruthenium and osmium MCU inhibitors. Inorg Chem Front 2024; 11:5064-5079. [PMID: 39113903 PMCID: PMC11301636 DOI: 10.1039/d4qi01102c] [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: 05/03/2024] [Accepted: 07/03/2024] [Indexed: 08/10/2024]
Abstract
The transmembrane protein known as the mitochondrial calcium uniporter (MCU) mediates the influx of calcium ions (Ca2+) into the mitochondrial matrix. An overload of mitochondrial Ca2+ ( m Ca2+) is directly linked to damaging effects in pathological conditions. Therefore, inhibitors of the MCU are important chemical biology tools and therapeutic agents. Here, two new analogues of previously reported Ru- and Os-based MCU inhibitors Ru265 and Os245, of the general formula [(C10H15CO2)M(NH3)4(μ-N)M(NH3)4(O2CC10H15)](CF3SO3)3, where M = Ru (1) or Os (2), are reported. These analogues bear adamantane functional groups, which were installed to act as guests for the host molecule cucurbit-[7]-uril (CB[7]). These complexes were characterized and analyzed for their efficiency as guests for CB[7]. As shown through a variety of spectroscopic techniques, each adamantane ligand is encapsulated into one CB[7], affording a supramolecular complex of 1 : 2 stoichiometry. The biological effects of these compounds in the presence and absence of two equiv. CB[7] were assessed. Both complexes 1 and 2 exhibit enhanced cellular uptake compared to the parent compounds Ru265 and Os245, and their uptake is increased further in the presence of CB[7]. Compared to Ru265 and Os245, 1 and 2 are less potent as m Ca2+ uptake inhibitors in permeabilized cell models. However, in intact cell systems, 1 and 2 inhibit the MCU at concentrations as low as 1 μM, marking an advantage over Ru265 and Os245 which require an order of magnitude higher doses for similar biological effects. The presence of CB[7] did not affect the inhibitory properties of 1 and 2. Experiments in primary cortical neurons showed that 1 and 2 can elicit protective effects against oxygen-glucose deprivation at lower doses than those required for Ru265 or Os245. At low concentrations, the protective effects of 1 were modulated by CB[7], suggesting that supramolecular complex formation can play a role in these biological conditions. The in vivo biocompatibility of 1 was investigated in mice. The intraperitoneal administration of these compounds and their CB[7] complexes led to time-dependent induction of seizures with no protective effects elicited by CB[7]. This work demonstrates the potential for supramolecular interactions in the development of MCU inhibitors.
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Affiliation(s)
- Nicholas P Bigham
- Department of Chemistry and Chemical Biology, Cornell University Ithaca NY 14853 USA
| | - Robyn J Novorolsky
- Department of Pharmacology, Faculty of Medicine, Dalhousie University 6th Floor Sir Charles Tupper Medical Building Halifax B3H 4R2 Canada
- Brain Repair Centre, Faculty of Medicine, Dalhousie University, Life Sciences Research Institute Halifax NS B3H 4R2 Canada
| | - Keana R Davis
- Department of Chemistry, University of San Francisco San Francisco CA 94117 USA
| | - Haipei Zou
- Department of Chemistry and Chemical Biology, Cornell University Ithaca NY 14853 USA
- Department of Chemistry & Biochemistry, University of California Santa Barbara Santa Barbara CA 93106 USA
| | - Samantha N MacMillan
- Department of Chemistry and Chemical Biology, Cornell University Ithaca NY 14853 USA
| | - Michael J Stevenson
- Department of Chemistry, University of San Francisco San Francisco CA 94117 USA
| | - George S Robertson
- Department of Pharmacology, Faculty of Medicine, Dalhousie University 6th Floor Sir Charles Tupper Medical Building Halifax B3H 4R2 Canada
- Brain Repair Centre, Faculty of Medicine, Dalhousie University, Life Sciences Research Institute Halifax NS B3H 4R2 Canada
- Department of Psychiatry, Faculty of Medicine, Dalhousie University Halifax NS B3H 2E2 Canada
| | - Justin J Wilson
- Department of Chemistry and Chemical Biology, Cornell University Ithaca NY 14853 USA
- Department of Chemistry & Biochemistry, University of California Santa Barbara Santa Barbara CA 93106 USA
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5
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Higashi T, Taharabaru T, Motoyama K. Synthesis of cyclodextrin-based polyrotaxanes and polycatenanes for supramolecular pharmaceutical sciences. Carbohydr Polym 2024; 337:122143. [PMID: 38710552 DOI: 10.1016/j.carbpol.2024.122143] [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: 02/16/2024] [Revised: 04/01/2024] [Accepted: 04/08/2024] [Indexed: 05/08/2024]
Abstract
Cyclodextrins (CDs) are essential in the pharmaceutical industry and have long been used as food and pharmaceutical additives. CD-based interlocked molecules, such as rotaxanes, polyrotaxanes, catenanes, and polycatenanes, have been synthesized and have attracted considerable attention in supramolecular chemistry. Among them, CD polyrotaxanes have been employed as slide-ring materials and biomaterials. CD polycatenanes are new materials; therefore, to date, no examples of applied research on CD polycatenanes have been reported. Consequently, we expect that applied research on CD polycatenanes will accelerate in the future. This review article summarizes the syntheses and structural analyses of CD polyrotaxanes and polycatenanes to facilitate their applications in the pharmaceutical industry. We believe that this review will promote further research on CD-based interlocked molecules.
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Affiliation(s)
- Taishi Higashi
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan.
| | - Toru Taharabaru
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Keiichi Motoyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
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6
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Saroha A, Bosco MS, Menon S, Kumari P, Maity T, Rana S, Kotak S, Mondal J, Agasti SS. Regulation of microtubule dynamics and function in living cells via cucurbit[7]uril host-guest assembly. Chem Sci 2024; 15:11981-11994. [PMID: 39092123 PMCID: PMC11290447 DOI: 10.1039/d4sc00204k] [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: 01/10/2024] [Accepted: 06/07/2024] [Indexed: 08/04/2024] Open
Abstract
Living systems utilize sophisticated biochemical regulators and various signal transduction mechanisms to program bio-molecular assemblies and their associated functions. Creating synthetic assemblies that can replicate the functional and signal-responsive properties of these regulators, while also interfacing with biomolecules, holds significant interest within the realms of supramolecular chemistry and chemical biology. This pursuit not only aids in understanding the fundamental design principles of life but also introduces novel capabilities that contribute to the advancements in medical and therapeutic research. In this study, we present a cucurbit[7]uril (CB[7]) host-guest system designed to regulate the dynamics and functions of microtubules (MTs) in living cells. To establish communication between MTs and CB[7] and to reversibly control MT function through host-guest recognition, we synthesized a two-faced docetaxel-p-xylenediamine (Xyl-DTX) derivative. While Xyl-DTX effectively stabilized polymerized MTs, inducing MT bundling and reducing dynamics in GFP-α-tubulin expressing cells, we observed a significant reduction in its MT-targeted activity upon threading with CB[7]. Leveraging the reversible nature of the host-guest complexation, we strategically reactivated the MT stabilizing effect by programming the guest displacement reaction from the CB[7]·Xyl-DTX complex using a suitable chemical signal, namely a high-affinity guest. This host-guest switch was further integrated into various guest activation networks, enabling 'user-defined' regulatory control over MT function. For instance, we demonstrated programmable control over MT function through an optical signal by interfacing it with a photochemical guest activation network. Finally, we showcased the versatility of this supramolecular system in nanotechnology-based therapeutic approaches, where a self-assembled nanoparticle system was employed to trigger the MT-targeted therapeutic effect from the CB[7]·Xyl-DTX complex.
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Affiliation(s)
- Akshay Saroha
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore Karnataka 560064 India
| | - Monica Swetha Bosco
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore Karnataka 560064 India
| | - Sneha Menon
- Tata Institute of Fundamental Research 36/P, Gopanpally Village Hyderabad 500046 India
| | - Pratibha Kumari
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore Karnataka 560064 India
| | - Tanmoy Maity
- Materials Research Centre, Indian Institute of Science C. V. Raman Road Bangalore 560012 India
| | - Subinoy Rana
- Materials Research Centre, Indian Institute of Science C. V. Raman Road Bangalore 560012 India
| | - Sachin Kotak
- Department of Microbiology and Cell Biology, Indian Institute of Science 560012 Bangalore India
| | - Jagannath Mondal
- Tata Institute of Fundamental Research 36/P, Gopanpally Village Hyderabad 500046 India
| | - Sarit S Agasti
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore Karnataka 560064 India
- Chemistry & Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore Karnataka 560064 India
- School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore Karnataka 560064 India
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7
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Roth E, Listyarini RV, Hofer TS, Cziferszky M. Host-Guest Interactions of Ruthenium(II) Arene Complexes with Cucurbit[7/8]uril. Inorg Chem 2024; 63:14021-14031. [PMID: 39016439 PMCID: PMC11289748 DOI: 10.1021/acs.inorgchem.4c01755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 07/18/2024]
Abstract
Cucurbit[n]urils (CB[n]s) have been recognized for their chemical and thermal stability, and their ability to bind many neutral and cationic guest molecules makes them excellent hosts in a range of supramolecular applications. In drug delivery, CB[n]s can enhance drug solubility, improve chemical and physical drug stability, and allow for triggered and controlled release. This study aimed to investigate the ability of CB[7] and CB[8] as molecular hosts to bind ruthenium(II) arene complexes that are current anticancer lead structures in the area of metallodrugs. Both, experimental and computational methods, led to insights into the binding preferences and geometries of [RuII(cym)Cl2]2 (1; cym = η6-p-cymene), [RuII(cym)(dmb)Cl2]) (2; cym = η6-p-cymene; dmb = 1,3-dimethylbenzimidazol-2-ylidene), and [RuII(cym)(pta)Cl2] (3, RAPTA-C; cym = η6-p-cymene; pta = 1,3,5-triaza-7-phospha-adamantane) with CB[7] and CB[8]. Competition experiments by mass spectrometry revealed clear preferences of 2 for CB[8] and 3 for CB[7]. Based on a comparison of the associated interaction energies from quantum chemical calculations as well as experimental data, 3@CB[7] clearly prefers a binding mode, where the pta ligand is located inside the cavity of the host, and the metal ion interacts with two of the carbonyl groups on the rim of CB[7]. In contrast, complex 2 binds in two different orientations with interaction energies similar to those of both CB[n]s, with the cym ligand being either inside or outside of the cavity. These findings suggest that ruthenium(II) arene complexes are able to form stable host-guest interactions with CB[n]s, which can be exploited as drug delivery vehicles in further metallodrug development to improve their chemical stability.
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Affiliation(s)
- Elisa Roth
- Institute
for Pharmacy, Pharmaceutical Chemistry, Department of Chemistry and
Pharmacy, University of Innsbruck, Innrain 80/82, A-6020 Innsbruck, Austria
| | - Risnita Vicky Listyarini
- Institute
of General, Inorganic and Theoretical Chemistry, Center for Chemistry
and Biomedicine, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
- Chemistry
Education Study Program, Sanata Dharma University, Yogyakarta 55282, Indonesia
| | - Thomas S. Hofer
- Institute
of General, Inorganic and Theoretical Chemistry, Center for Chemistry
and Biomedicine, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
| | - Monika Cziferszky
- Institute
for Pharmacy, Pharmaceutical Chemistry, Department of Chemistry and
Pharmacy, University of Innsbruck, Innrain 80/82, A-6020 Innsbruck, Austria
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8
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Perera S, Shaurya A, Baptiste M, Zavalij PY, Isaacs L. Acyclic Cucurbit[n]uril Receptors Function as Solid State Sequestrants for Organic Micropollutants. Angew Chem Int Ed Engl 2024; 63:e202407169. [PMID: 38661568 DOI: 10.1002/anie.202407169] [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: 04/15/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 04/26/2024]
Abstract
The accumulation of organic micropollutants (OMP) in aquatic systems is a major societal problem that can be addressed by approaches including nanofiltration, flocculation, reverse osmosis and adsorptive methods using insoluble materials (e.g. activated carbon, MOFs, nanocomposites). More recently, polymeric versions of supramolecular hosts (e.g. cyclodextrins, calixarenes, pillararenes) have been investigated as OMP sequestrants. Herein, we report our study of the use of water insoluble dimethylcatechol walled acyclic cucurbit[n]uril (CB[n]) hosts as solid state sequestrants for a panel of five OMPs. A series of hosts (H1-H4) were synthesized by reaction of glycoluril oligomer (monomer-tetramer) with 3,6-dimethylcatechol and fully characterized by spectroscopic means and x-ray crystallography. The solid hosts sequester OMPs from water with removal efficiencies exceeding 90 % in some cases. The removal efficiencies of the new hosts parallel the known molecular recognition properties of analogous water soluble acyclic CB[n]. OMP uptake by solid host occurs rapidly (≈120 seconds). Head-to-head comparison with CB[6] in batch-mode separation and DARCO activated carbon in flow-through separation mode show that tetramer derived host (H4) performs very well under identical conditions. The work establishes insoluble acyclic CB[n]-type receptors as a promising new platform for OMP sequestration.
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Affiliation(s)
- Suvenika Perera
- Department of Chemistry and Biochemistry, University of Maryland, College Park, 8051 Regents Dr., College Park, MD 20742, United States
| | - Alok Shaurya
- Department of Chemistry and Biochemistry, University of Maryland, College Park, 8051 Regents Dr., College Park, MD 20742, United States
| | - Michael Baptiste
- Department of Chemistry and Biochemistry, University of Maryland, College Park, 8051 Regents Dr., College Park, MD 20742, United States
| | - Peter Y Zavalij
- Department of Chemistry and Biochemistry, University of Maryland, College Park, 8051 Regents Dr., College Park, MD 20742, United States
| | - Lyle Isaacs
- Department of Chemistry and Biochemistry, University of Maryland, College Park, 8051 Regents Dr., College Park, MD 20742, United States
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9
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Wang Y, Yang X, Luo J, Yi S, Guo T, Liao Y, Yu C, Zhang X. Cucurbit[7]uril-based host-guest complexes for improving bioavailability and reducing side effects of piroxicam. Int J Pharm 2024; 660:124351. [PMID: 38897491 DOI: 10.1016/j.ijpharm.2024.124351] [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: 03/21/2024] [Revised: 06/02/2024] [Accepted: 06/15/2024] [Indexed: 06/21/2024]
Abstract
Piroxicam (PX) is a nonsteroidal anti-inflammatory drug (NSAID) commonly associated with gastrointestinal (GI) injuries, including dyspepsia, heartburn, inflammation, bleeding, ulceration, and life-threatening perforation. The β-cyclodextrin (β-CD)-based PX formulation (PX@CD) has been shown to reduce gastric side effects by improving PX's solubility and dissolution rates. However, the solubility of PX can only be increased to a limited extent by β-CD, due to the low binding constant between PX and β-CD (∼100 M-1). As a result, adverse reactions such as epigastric pain and pyrosis are still commonly reported. Cucurbit[7]uril (CB[7]) is a synthetic macrocyclic host compound that binds strongly to various drugs. In this study, we demonstrated that CB[7] forms complexes with PX in the gastric acid environment with a binding constant approximately 70 times higher than that between β-CD and PX. The PX@CB[7] inclusion complexes exhibited rapid dissolution rates in the gastric environment. In addition, PX@CB[7] showed significantly higher oral bioavailability and maximum concentration (Cmax) compared to PX and PX@CD (1:2.5), resulting in improved anti-inflammatory effects in both mouse and rat models. Moreover, PX@CB[7] (1:2.5) had the least adhesion to the gastric mucosa and caused the mildest gastric side effects in rat models when compared to PX, PX@CD (1:2.5), and PX@CB[7] (1:1). Lastly, CB[7] demonstrated good oral biocompatibility in a subacute toxicity evaluation study. These findings indicate that CB[7] could be used as an excipient to improve treatment effectiveness and decrease adverse reactions in orally administered formulations with a favorable safety profile.
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Affiliation(s)
- Yan Wang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Xiaodi Yang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Jianguo Luo
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Sisi Yi
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Tao Guo
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Yue Liao
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Chao Yu
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Xiangjun Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
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10
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Duan Z, Dong G, Yang H, Yan Z, Liu S, Dong Y, Zhao Z. Supramolecular DNA nanogels through host-guest interaction for targeted drug delivery. J Mater Chem B 2024; 12:6137-6145. [PMID: 38842102 DOI: 10.1039/d4tb00853g] [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: 06/07/2024]
Abstract
DNA hydrogels have been demonstrated with the advantages of good stability, easy modification, and extraordinary biocompatibility, which enables their great application prospects in biosensing, tissue engineering, and biomedicine. Based on the host-guest recognition properties of cucurbit[8]uril (CB[8]), we proposed a general method for constructing functional supramolecular DNA nanogels. Guest molecules have been conjugated into the DNA building units, which could be further crosslinked with CB[8] to construct supramolecular DNA nanogels. At the same time, the aptamer has also been modified into the hydrogel network to achieve cell targeting. These supramolecular DNA nanogels have been demonstrated with a controllable size and multiple stimuli responses, in addition to the excellent biocompatibility, stability and good targeting drug transport ability. Such a host-guest based strategy will provide a molecular library as a "toolbox" for the functionalization of DNA nanogels.
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Affiliation(s)
- Zongze Duan
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Guizhi Dong
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Hai Yang
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Zhengwei Yan
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Simin Liu
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Yuanchen Dong
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Zhiyong Zhao
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
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11
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Xia Y, Wang G, He C, Chen H. A Strong Supramolecular Mechanophore with Controlled Mechanical Strength. Angew Chem Int Ed Engl 2024:e202406738. [PMID: 38869842 DOI: 10.1002/anie.202406738] [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: 04/09/2024] [Revised: 06/11/2024] [Accepted: 06/13/2024] [Indexed: 06/14/2024]
Abstract
Supramolecular mechanophores typically exhibit much lower mechanical strengths than covalent counterparts, with strengths usually around 100 pN, which is significantly lower than the nN-scale strength of covalent bonds. Inspired by the slow dissociation kinetics of the cucurbit[7]uril (CB[7])-hexanoate-isoquinoline (HIQ) complex, we discovered that charge-dipole repulsion can be utilized to create strong supramolecular mechanophores. When activated at its -COO- state, the CB[7]-HIQ complex exhibits a high mechanical strength of ~700 pN, comparable to weak covalent bonds such as Au-S bonds or thiol-maleimide adducts. The strength of the CB[7]-HIQ complex can also be tuned with pH in a gradual manner, with a minimum value of ~150 pN at its -COOH state, similar to an ordinary supramolecular conjugate. This research may pave the way for the development of supramolecular architectures that combine the advantages of covalent and supramolecular systems.
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Affiliation(s)
- Yu Xia
- School of Chemistry and Chemical Engineering, The Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Jinan, 250100, P. R. China
| | - Guannan Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijng, 100029, P. R. China
| | - Chengzhi He
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijng, 100029, P. R. China
| | - Hao Chen
- School of Chemistry and Chemical Engineering, The Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Jinan, 250100, P. R. China
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12
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Wang Y, Bimmermann AM, Neufurth M, Besenius P. Cucurbit[8]uril Mediated Supramolecular and Photocrosslinked Interpenetrating Network Hydrogel Matrices for 3D-Bioprinting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2313270. [PMID: 38538535 DOI: 10.1002/adma.202313270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/25/2024] [Indexed: 04/06/2024]
Abstract
Printing of biologically functional constructs is significant for applications in tissue engineering and regenerative medicine. Designing bioinks remains remarkably challenging due to the multifaceted requirements in terms of the physical, chemical, and biochemical properties of the three-dimensional matrix, such as cytocompatibility, printability, and shape fidelity. In order to promote matrix and materials stiffness, while not sacrificing stress relaxation mechanisms which support cell spreading, migration, and differentiation, this work reports an interpenetrating network (IPN) bioink design. The approach makes use of a chemically defined network, combining physical and chemical crosslinking units with a tunable composition and network density, as well as spatiotemporal control over post-assembly material stiffening. To this end, star-shaped poly(ethylene glycol)s functionalized with Phe-Gly-Gly tripeptide or photoactive stilbazolium are synthesized, and used to prepare three-dimensional networks with cucurbit[8]uril (CB[8]) through supramolecular host-guest complexation. The hydrogel obtained shows fast relaxation and thus supports the proliferation and differentiation of cells. Upon irradiation, the mechanical properties of the hydrogel can be rapidly adapted via selective photochemical dimerization of stilbazolium within CB[8], leading to IPNs with increased form stability while retaining the dynamic nature of the hydrogels. This modular approach opens new design opportunities for extrudable and cell-friendly dynamic biomaterials for applications in 3D-bioprinting.
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Affiliation(s)
- Yuqing Wang
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | | | - Meik Neufurth
- Institute for Physiological Chemistry, University Medical Center Mainz, Duesbergweg 6, 55128, Mainz, Germany
| | - Pol Besenius
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
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13
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Mizuno H, Nakazawa H, Miyagawa A, Yakiyama Y, Sakurai H, Fukuhara G. Amplification sensing manipulated by a sumanene-based supramolecular polymer as a dynamic allosteric effector. Sci Rep 2024; 14:12534. [PMID: 38822045 PMCID: PMC11143208 DOI: 10.1038/s41598-024-63304-4] [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: 03/27/2024] [Accepted: 05/27/2024] [Indexed: 06/02/2024] Open
Abstract
The synthesis of signal-amplifying chemosensors induced by various triggers is a major challenge for multidisciplinary sciences. In this study, a signal-amplification system that was flexibly manipulated by a dynamic allosteric effector (trigger) was developed. Herein, the focus was on using the behavior of supramolecular polymerization to control the degree of polymerization by changing the concentration of a functional monomer. It was assumed that this control was facilitated by a gradually changing/dynamic allosteric effector. A curved-π buckybowl sumanene and a sumanene-based chemosensor (SC) were employed as the allosteric effector and the molecular binder, respectively. The hetero-supramolecular polymer, (SC·(sumanene)n), facilitated the manipulation of the degree of signal-amplification; this was accomplished by changing the sumanene monomer concentration, which resulted in up to a 62.5-fold amplification of a steroid. The current results and the concept proposed herein provide an alternate method to conventional chemosensors and signal-amplification systems.
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Affiliation(s)
- Hiroaki Mizuno
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-Ku, Tokyo, 152-8551, Japan
| | - Hironobu Nakazawa
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Akihisa Miyagawa
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - Yumi Yakiyama
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
- Division of Applied Chemistry, Graduate School of Engineering and Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan
| | - Hidehiro Sakurai
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan.
- Division of Applied Chemistry, Graduate School of Engineering and Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan.
| | - Gaku Fukuhara
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-Ku, Tokyo, 152-8551, Japan.
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14
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Menandro AS, Péres LO, Bohne C. Solubilization and Photostabilization in a Sodium Deoxycholate Hydrogel of a Neutral Conjugated Thiophene Oligomer and Polymer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:11215-11227. [PMID: 38748867 DOI: 10.1021/acs.langmuir.4c00884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Oligo(3-hexylthiophene-co-1,4-phenylene) and poly(3-hexylthiophene) were solubilized in sodium deoxycholate self-assemblies in water solutions and hydrogels, with the goal of solubilizing sufficient material in a hydrogel for fluorescence applications. The neutral conjugated oligomer and polymer were incorporated as monomers into the self-assemblies with sodium deoxycholate aggregates, leading to the photoprotection of these neutral conjugated and water-insoluble molecules. Dynamic light scattering, rheology, and fluorescence experiments established that the deoxycholate aggregation and gel formation properties were not altered with the incorporation of the oligomer or polymer into the deoxycholate self-assemblies, showing that this adaptable host system with some molecular recognition elements is a viable strategy to incorporate into hydrogels neutral conjugated molecules as isolated monomers. This strategy has the potential to be used when conjugated molecules are used for fluorescence applications in hydrogels.
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Affiliation(s)
- Alessandra S Menandro
- Laboratory of Hybrid Materials, Federal University of São Paulo, Diadema, SP 09913-030, Brazil
- Department of Chemistry, University of Victoria, PO Box 1700 STN CSC, Victoria, British Columbia V8W 2Y2, Canada
- Centre for Advanced Materials and Related Technology (CAMTEC), University of Victoria, 3800 Finnerty Rd, Victoria, British Columbia V8P 5C2, Canada
| | - Laura O Péres
- Laboratory of Hybrid Materials, Federal University of São Paulo, Diadema, SP 09913-030, Brazil
| | - Cornelia Bohne
- Department of Chemistry, University of Victoria, PO Box 1700 STN CSC, Victoria, British Columbia V8W 2Y2, Canada
- Centre for Advanced Materials and Related Technology (CAMTEC), University of Victoria, 3800 Finnerty Rd, Victoria, British Columbia V8P 5C2, Canada
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15
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Su B, Chi T, Chen W, Xian S, Liu D, Addonizio CJ, Xiang Y, Webber MJ. Using a biocatalyzed reaction cycle for transient and pH-dependent host-guest supramolecular hydrogels. J Mater Chem B 2024; 12:4666-4672. [PMID: 38647183 PMCID: PMC11095629 DOI: 10.1039/d4tb00545g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 04/15/2024] [Indexed: 04/25/2024]
Abstract
The formation of transient structures plays important roles in biological processes, capturing temporary states of matter through influx of energy or biological reaction networks catalyzed by enzymes. These natural transient structures inspire efforts to mimic this elegant mechanism of structural control in synthetic analogues. Specifically, though traditional supramolecular materials are designed on the basis of equilibrium formation, recent efforts have explored out-of-equilibrium control of these materials using both direct and indirect mechanisms; the preponderance of such works has been in the area of low molecular weight gelators. Here, a transient supramolecular hydrogel is realized through cucurbit[7]uril host-guest physical crosslinking under indirect control from a biocatalyzed network that regulates and oscillates pH. The duration of transient hydrogel formation, and resulting mechanical properties, are tunable according to the dose of enzyme, substrate, or pH stimulus. This tunability enables control over emergent functions, such as the programmable burst release of encapsulated model macromolecular payloads.
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Affiliation(s)
- Bo Su
- Department of Chemcial & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana, USA.
| | - Teng Chi
- Department of Chemcial & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana, USA.
| | - Weike Chen
- Department of Chemcial & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana, USA.
| | - Sijie Xian
- Department of Chemcial & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana, USA.
| | - Dongping Liu
- Department of Chemcial & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana, USA.
| | - Christopher J Addonizio
- Department of Chemcial & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana, USA.
| | - Yuanhui Xiang
- Department of Chemcial & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana, USA.
| | - Matthew J Webber
- Department of Chemcial & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana, USA.
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16
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Wu D, Wang J, Du X, Cao Y, Ping K, Liu D. Cucurbit[8]uril-based supramolecular theranostics. J Nanobiotechnology 2024; 22:235. [PMID: 38725031 PMCID: PMC11084038 DOI: 10.1186/s12951-024-02349-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 02/20/2024] [Indexed: 05/12/2024] Open
Abstract
Different from most of the conventional platforms with dissatisfactory theranostic capabilities, supramolecular nanotheranostic systems have unparalleled advantages via the artful combination of supramolecular chemistry and nanotechnology. Benefiting from the tunable stimuli-responsiveness and compatible hierarchical organization, host-guest interactions have developed into the most popular mainstay for constructing supramolecular nanoplatforms. Characterized by the strong and diverse complexation property, cucurbit[8]uril (CB[8]) shows great potential as important building blocks for supramolecular theranostic systems. In this review, we summarize the recent progress of CB[8]-based supramolecular theranostics regarding the design, manufacture and theranostic mechanism. Meanwhile, the current limitations and corresponding reasonable solutions as well as the potential future development are also discussed.
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Affiliation(s)
- Dan Wu
- Department of Vascular Surgery, China-Japan Union Hospital, Jilin University, Changchun, 130033, People's Republic of China
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Jianfeng Wang
- Department of Radiotherapy, China-Japan Union Hospital, Jilin University, Changchun, 130033, People's Republic of China
| | - Xianlong Du
- Bethune First Clinical Medical College, Jilin University, Changchun, 130012, People's Republic of China
| | - Yibin Cao
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Kunmin Ping
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Dahai Liu
- Department of Vascular Surgery, China-Japan Union Hospital, Jilin University, Changchun, 130033, People's Republic of China.
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17
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Chen D, Xiao T, Monflier É, Wang L. Multi-step FRET systems based on discrete supramolecular assemblies. Commun Chem 2024; 7:88. [PMID: 38637669 PMCID: PMC11026437 DOI: 10.1038/s42004-024-01175-6] [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: 02/23/2024] [Accepted: 04/11/2024] [Indexed: 04/20/2024] Open
Abstract
Fluorescence resonance energy transfer (FRET) from the excited state of the donor to the ground state of the acceptor is one of the most important fluorescence mechanisms and has wide applications in light-harvesting systems, light-mediated therapy, bioimaging, optoelectronic devices, and information security fields. The phenomenon of sequential energy transfer in natural photosynthetic systems provides great inspiration for scientists to make full use of light energy. In recent years, discrete supramolecular assemblies (DSAs) have been successively constructed to incorporate donor and multiple acceptors, and to achieve multi-step FRET between them. This perspective describes recent advances in the fabrication and application of DSAs with multi-step FRET. These DSAs are categorized based on the non-covalent scaffolds, such as amphiphilic nanoparticles, host-guest assemblies, metal-coordination scaffolds, and biomolecular scaffolds. This perspective will also outline opportunities and future challenges in this research area.
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Affiliation(s)
- Dengli Chen
- School of Petrochemical Engineering, Changzhou University, Changzhou, China
| | - Tangxin Xiao
- School of Petrochemical Engineering, Changzhou University, Changzhou, China.
| | - Éric Monflier
- Unité de Catalyse et Chimie du Solide (UCCS), Faculté des Sciences Jean Perrin, Univ. Artois, CNRS, Centrale Lille, Univ. Lille, UMR 8181, Lens, France.
| | - Leyong Wang
- Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China.
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18
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Basavarajappa A, Wang X, Miljanić OŠ. Cycloglycolurils: Hybrid Glycoluril-Cyclobenzil Macrocycles. Org Lett 2024. [PMID: 38626464 DOI: 10.1021/acs.orglett.4c00835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
Two novel glycoluril macrocycles have been synthesized from cyclotetrabenzil and cyclotribenzoin precursors using solvent-free condensations with urea. The crystal structure of the cyclotetra(p-phenylene)glycoluril macrocycle shows a twisted ring conformation, while that of the cyclotri(m-phenylene)glycoluril hybrid exhibits a distinct tubular supramolecular packing. These structures establish a potentially broad new class of macrocycles with intriguing guest binding properties owing to their available N-H motifs.
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Affiliation(s)
| | - Xiqu Wang
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Ognjen Š Miljanić
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City 71408, Vietnam
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19
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Zhang Q, Li H, Kang Y, Cui Q, Zhang H, Li L. Tunable Fluorescence, Morphology, and Antibacterial Behaviors of Conjugated Oligomers via Host-Guest Supramolecular Self-Assembly. ACS APPLIED BIO MATERIALS 2024; 7:2533-2543. [PMID: 38526040 DOI: 10.1021/acsabm.4c00133] [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] [Indexed: 03/26/2024]
Abstract
Host-guest supramolecular self-assembly has become one facile but efficient way to regulate the optical properties of conjugated oligomers and construct promising photofunctional materials. Herein, we design two linear conjugated oligomers terminated with two or four pyridinium moieties, which show different 1:1 'head-to-tail' binding patterns with cucurbit[8]uril (CB[8]) to form host-guest supramolecules. After being encapsulated in the hydrophobic cavity of the CB[8] host, the fluorescence emission of the conjugated oligomers undergoes significant changes, resulting in tunable fluorescence color with enhanced quantum yields. Triggered by the aggregation of supramolecules, the regular or rigid binding modes lead to the formation of cuboids and spheroids in nanoscale, respectively. Due to the macrocyclic-confinement effect, the light-driven reactive oxygen species (ROS) production of the host-guest complex is increased significantly, thereby improving the photodynamic antibacterial performance toward Staphylococcus aureus (S. aureus).
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Affiliation(s)
- Qian Zhang
- Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Hui Li
- Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Yuetong Kang
- Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Qianling Cui
- Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Hean Zhang
- Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Lidong Li
- Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
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20
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Ogoshi T, Azuma S, Wada K, Tamura Y, Kato K, Ohtani S, Kakuta T, Yamagishi TA. Exciplex Formation by Complexation of an Electron-Accepting Guest in an Electron-Donating Pillar[5]arene Host Liquid. J Am Chem Soc 2024; 146:9828-9835. [PMID: 38563366 DOI: 10.1021/jacs.3c14582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
We present a novel system, a liquid-state pillar[5]arene decorated with tri(ethylene oxide) chains, that brings electron-donor and electron-acceptor molecules into proximity for efficient exciplex formation. The electron-accepting guests exhibit a blue-purple emission from a localized excited state upon excitation in common solvents. However, directly dissolving the guests in the electron-donating pillar[5]arene liquid (a bulk system) results in visible green emission from the formed exciplexes. In the bulk system, the guest molecules are always surrounded by excess pillar[5]arene molecules, resulting in the formation of mainly inclusion-type exciplexes. In the bulk system, energy migration occurs between the pillar[5]arene molecules. Excitation of the pillar[5]arenes results in a more intense green exciplex emission than that observed upon direct excitation of the guests. In summary, the pillar[5]arene liquid is a novel system for achieving efficient exciplex formation and energy migration that is different from typical solvent and solid systems.
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Affiliation(s)
- Tomoki Ogoshi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-Machi, Kanazawa 920-1192, Japan
| | - Shogo Azuma
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Keisuke Wada
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yuko Tamura
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-Machi, Kanazawa 920-1192, Japan
| | - Kenichi Kato
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shunsuke Ohtani
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takahiro Kakuta
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-Machi, Kanazawa 920-1192, Japan
| | - Tada-Aki Yamagishi
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-Machi, Kanazawa 920-1192, Japan
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21
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Zhang S, Zhou H, Zhang L, Zhu C, Du X, Wang L, Chen H, Liu J. Lysophosphatidic acid responsive photosensitive supramolecular organic frameworks for tumor imaging, drug loading, and photodynamic therapy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 310:123923. [PMID: 38277782 DOI: 10.1016/j.saa.2024.123923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 01/28/2024]
Abstract
Supramolecular organic frameworks have been widely applied for biological detection and drug delivery. In this study, a supramolecular organic framework (SOF) is constructed through the self-assembly of a highly photosensitive triarylphosphine oxide guest molecule, OTPP-6-Methyl, with cucurbit [8] uril (CB [8]). The formation of the SOF gradually enhances the weak fluorescence of OTPP-6-Methyl owing to the restriction of the molecular folding motion. Although the high positive charge of OTPP-6-Methyl facilitates binding to various negatively charged substances, the SOF system only demonstrated an obvious fluorescence response to LPA, a biomarker of ovarian cancer, via the disassembly of SOF and subsequent binding of OTPP-6-Methyl with LPA. The fluorescence changes during the entire process are insufficient to allow the sensitive detection of LPA; thus, we further designed a FRET system by introducing Cy5, which can act as an energy receptor to achieve a ratiometric readout for LPA. The tumor-targeting cRGD group was introduced into the SOF system as part of another guest molecule, OTPP-5-M-1-cRGD, to improve the tumor-targeting ability of the SOF system. The SOF system further improves the photosensitivity of guest molecules, and is therefore used in the in vivo imaging of ovarian cancer subcutaneous tumors and as a DDS for loading DOX for the combined in vivo chemotherapy and photodynamic treatment of tumors.
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Affiliation(s)
- Shilu Zhang
- School of Pharmacy, Thyriod and Breast Surgery, Medical Imaging Key Laboratory of Sichuan Province, Affiliated Hospital of North Sichuan Medical College, North Sichuan Medical College, Sichuan 637100, China
| | - Huang Zhou
- School of Pharmacy, Thyriod and Breast Surgery, Medical Imaging Key Laboratory of Sichuan Province, Affiliated Hospital of North Sichuan Medical College, North Sichuan Medical College, Sichuan 637100, China
| | - Liang Zhang
- School of Pharmacy, Thyriod and Breast Surgery, Medical Imaging Key Laboratory of Sichuan Province, Affiliated Hospital of North Sichuan Medical College, North Sichuan Medical College, Sichuan 637100, China
| | - Caiqiong Zhu
- School of Pharmacy, Thyriod and Breast Surgery, Medical Imaging Key Laboratory of Sichuan Province, Affiliated Hospital of North Sichuan Medical College, North Sichuan Medical College, Sichuan 637100, China
| | - Xinyi Du
- School of Pharmacy, Thyriod and Breast Surgery, Medical Imaging Key Laboratory of Sichuan Province, Affiliated Hospital of North Sichuan Medical College, North Sichuan Medical College, Sichuan 637100, China
| | - Linjing Wang
- School of Pharmacy, Thyriod and Breast Surgery, Medical Imaging Key Laboratory of Sichuan Province, Affiliated Hospital of North Sichuan Medical College, North Sichuan Medical College, Sichuan 637100, China
| | - Hongyu Chen
- School of Pharmacy, Thyriod and Breast Surgery, Medical Imaging Key Laboratory of Sichuan Province, Affiliated Hospital of North Sichuan Medical College, North Sichuan Medical College, Sichuan 637100, China.
| | - Jun Liu
- School of Pharmacy, Thyriod and Breast Surgery, Medical Imaging Key Laboratory of Sichuan Province, Affiliated Hospital of North Sichuan Medical College, North Sichuan Medical College, Sichuan 637100, China.
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22
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Suating P, Ewe MB, Kimberly LB, Arman HD, Wherritt DJ, Urbach AR. Peptide recognition by a synthetic receptor at subnanomolar concentrations. Chem Sci 2024; 15:5133-5142. [PMID: 38577360 PMCID: PMC10988627 DOI: 10.1039/d4sc01122h] [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: 02/16/2024] [Accepted: 03/07/2024] [Indexed: 04/06/2024] Open
Abstract
This paper describes the discovery and characterization of a dipeptide sequence, Lys-Phe, that binds to the synthetic receptor cucurbit[8]uril (Q8) in neutral aqueous solution with subnanomolar affinity when located at the N-terminus. The thermodynamic and structural basis for the binding of Q8 to a series of four pentapeptides was characterized by isothermal titration calorimetry, NMR spectroscopy, and X-ray crystallography. Submicromolar binding affinity was observed for the peptides Phe-Lys-Gly-Gly-Tyr (FKGGY, 0.3 μM) and Tyr-Leu-Gly-Gly-Gly (YLGGG, 0.2 μM), whereas the corresponding sequence isomers Lys-Phe-Gly-Gly-Tyr (KFGGY, 0.3 nM) and Leu-Tyr-Gly-Gly-Gly (LYGGG, 1.2 nM) bound to Q8 with 1000-fold and 170-fold increases in affinity, respectively. To our knowledge, these are the highest affinities reported between a synthetic receptor and an unmodified peptide. The high-resolution crystal structures of the Q8·Tyr-Leu-Gly-Gly-Gly and Q8·Leu-Tyr-Gly-Gly-Gly complexes have enabled a detailed analysis of the structural determinants for molecular recognition. The high affinity, sequence-selectivity, minimal size of the target binding site, reversibility in the presence of a competitive guest, compatibility with aqueous media, and low toxicity of Q8 should aid in the development of applications involving low concentrations of target polypeptides.
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Affiliation(s)
- Paolo Suating
- Department of Chemistry, Trinity University 1 Trinity Place San Antonio TX 78212 USA
| | - Marc B Ewe
- Department of Chemistry, Trinity University 1 Trinity Place San Antonio TX 78212 USA
| | - Lauren B Kimberly
- Department of Chemistry, Trinity University 1 Trinity Place San Antonio TX 78212 USA
| | - Hadi D Arman
- Department of Chemistry, University of Texas at San Antonio 1 UTSA Circle San Antonio TX 78249 USA
| | - Daniel J Wherritt
- Department of Chemistry, University of Texas at San Antonio 1 UTSA Circle San Antonio TX 78249 USA
| | - Adam R Urbach
- Department of Chemistry, Trinity University 1 Trinity Place San Antonio TX 78212 USA
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23
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Xu J, Li B, Zhang XD, Wu D, Zhao JL, Chen K. Selective removal of Cr 2O 72- in aqueous solution by nonporous pure crystals of cucurbit[6]uril. Dalton Trans 2024; 53:6168-6172. [PMID: 38488062 DOI: 10.1039/d4dt00611a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Cucurbit[6]uril (Q[6]) could serve as a selective absorbent for the toxic anion Cr2O72-, which was demonstrated by the results of UV-vis, ICP, XPS, SEM, and EDS experiments. Single-crystal X-ray diffraction analysis revealed that capture capacity could be attributed to the outer-surface interactions of cucurbit[n]uril between Cr2O72- and the outer surface of Q[6].
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Affiliation(s)
- Jing Xu
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China.
| | - Bin Li
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China.
| | - Xiu-Du Zhang
- College of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, 189 Jiuhua Southern Road, Wuhu 241002, China
| | - Dong Wu
- Computer Aided Drug Discovery Center, Zhuhai Institute of Advanced Technology, Chinese Academy of Sciences, Zhuhai 519003, China.
| | - Jiang-Lin Zhao
- Precision Medicine R&D Center, Zhuhai Institute of Advanced Technology, Chinese Academy of Sciences, Zhuhai 519080, Guangdong, China
| | - Kai Chen
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China.
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24
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Suating P, Kimberly LB, Ewe MB, Chang SL, Fontenot JM, Sultane PR, Bielawski CW, Decato DA, Berryman OB, Taylor AB, Urbach AR. Cucurbit[8]uril Binds Nonterminal Dipeptide Sites with High Affinity and Induces a Type II β-Turn. J Am Chem Soc 2024; 146:7649-7657. [PMID: 38348472 DOI: 10.1021/jacs.3c14045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
In an effort to target polypeptides at nonterminal sites, we screened the binding of the synthetic receptor cucurbit[8]uril (Q8) to a small library of tetrapeptides, each containing a nonterminal dipeptide binding site. The resulting leads were characterized in detail using a combination of isothermal titration calorimetry, 1H NMR spectroscopy, electrospray ionization time-of-flight mass spectrometry (ESI-TOF-MS), and X-ray crystallography. The equilibrium dissociation constant values determined for the binding of Q8 to nonterminal dipeptide sites Lys-Phe (KF) and Phe-Lys (FK) were 60 and 86 nm, respectively. These are to the best of our knowledge the highest affinities reported to date for any synthetic receptor targeting a nonterminal site on an unmodified peptide. A 0.79 Å resolution crystal structure was obtained for the complex of Q8 with the peptide Gly-Gly-Leu-Tyr-Gly-Gly-Gly (GGLYGGG) and reveals structural details of the pair-inclusion motif. The molecular basis for recognition is established to be the inclusion of the side chains of Leu and Tyr residues, as well as an extensive network of hydrogen bonds between the peptide backbone, the carbonyl oxygens of Q8, and proximal water molecules. In addition, the crystal structure reveals that Q8 induces a type II β-turn. The sequence-selectivity, high affinity, reversibility, and detailed structural characterization of this system should facilitate the development of applications involving ligand-induced polypeptide folding.
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Affiliation(s)
- Paolo Suating
- Department of Chemistry, Trinity University, 1 Trinity Place, San Antonio, Texas 78212, United States
| | - Lauren B Kimberly
- Department of Chemistry, Trinity University, 1 Trinity Place, San Antonio, Texas 78212, United States
| | - Marc B Ewe
- Department of Chemistry, Trinity University, 1 Trinity Place, San Antonio, Texas 78212, United States
| | - Sarah L Chang
- Department of Chemistry, Trinity University, 1 Trinity Place, San Antonio, Texas 78212, United States
| | - John M Fontenot
- Department of Chemistry, Trinity University, 1 Trinity Place, San Antonio, Texas 78212, United States
| | - Prakash R Sultane
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) and Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Christopher W Bielawski
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) and Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Daniel A Decato
- Department of Chemistry and Biochemistry, University of Montana, Missoula, Montana 59812, United States
| | - Orion B Berryman
- Department of Chemistry and Biochemistry, University of Montana, Missoula, Montana 59812, United States
| | - Alexander B Taylor
- Department of Biochemistry & Structural Biology and Greehey Children's Cancer Research Institute, University of Texas Health Science Center at San Antonio, 8300 Floyd Curl Drive, San Antonio, Texas 78229, United States
| | - Adam R Urbach
- Department of Chemistry, Trinity University, 1 Trinity Place, San Antonio, Texas 78212, United States
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25
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Yan C, Li Q, Wang K, Yang W, Han J, Li Y, Dong Y, Chu D, Cheng L, Cao L. "Gear-driven"-type chirality transfer of tetraphenylethene-based supramolecular organic frameworks for peptides in water. Chem Sci 2024; 15:3758-3766. [PMID: 38455015 PMCID: PMC10915834 DOI: 10.1039/d3sc06349f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 02/01/2024] [Indexed: 03/09/2024] Open
Abstract
Chirality transfer for natural chiral biomolecules can reveal the indispensable role of chiral structures in life and can be used to develop the chirality-sensing biomolecular recognition. Here, we report the synthesis and characterization of a series of achiral supramolecular organic frameworks (SOF-1, SOF-2, and SOF-3), constructed from cucurbit[8]uril (CB[8]) and tetraphenylethene (TPE) derivatives (1, 2, and 3), respectively, as chirality-sensing platforms to explore their chirality transfer mechanism for peptides in water. Given the right-handed (P) and left-handed (M) rotational conformation of TPE units and the selective binding of CB[8] to aromatic amino acids, these achiral SOFs can be selectively triggered in water by peptides containing N-terminal tryptophan (W) and phenylalanine (F) residues into their P- or M-rotational conformation, exhibiting significantly different circular dichroism (CD) spectra. Although various peptides have the same l-type chiral configuration, they can induce positive CD signals of SOF-1 and negative CD signals of SOF-2 and SOF-3, respectively. Based on the structural analysis of the linkage units between CB[8] and TPE units in these SOFs, a "gear-driven"-type chirality transfer mechanism has been proposed to visually illustrate the multiple-step chirality transfer process from the recognition site in the CB[8]'s cavity to TPE units. Furthermore, by utilizing the characteristic CD signals generated through the "gear-driven"-type chirality transfer, these SOFs can serve as chiroptical sensor arrays to effectively recognize and distinguish various peptides based on their distinctive CD spectra.
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Affiliation(s)
- Chaochao Yan
- College of Chemistry and Materials Science, Northwest University Xi'an 710069 China
| | - Qingfang Li
- College of Chemistry and Materials Science, Northwest University Xi'an 710069 China
| | - Kaige Wang
- College of Chemistry and Materials Science, Northwest University Xi'an 710069 China
| | - Wanni Yang
- College of Chemistry and Materials Science, Northwest University Xi'an 710069 China
| | - Jingyu Han
- College of Chemistry and Materials Science, Northwest University Xi'an 710069 China
| | - Yawen Li
- College of Chemistry and Materials Science, Northwest University Xi'an 710069 China
| | - Yunhong Dong
- College of Chemistry and Materials Science, Northwest University Xi'an 710069 China
| | - Dake Chu
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710061 China
| | - Lin Cheng
- College of Chemistry and Materials Science, Northwest University Xi'an 710069 China
| | - Liping Cao
- College of Chemistry and Materials Science, Northwest University Xi'an 710069 China
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26
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Jiang YN, Tan M, He C, Wang J, Wei Y, Jing N, Wang B, Yang F, Zhang Y, Li M. Supramolecular Switch for the Regulation of Antibacterial Efficacy of Near-Infrared Photosensitizer. Molecules 2024; 29:1040. [PMID: 38474550 DOI: 10.3390/molecules29051040] [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: 01/17/2024] [Revised: 02/22/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
The global antibiotic resistance crisis has drawn attention to the development of treatment methods less prone to inducing drug resistance, such as antimicrobial photodynamic therapy (aPDT). However, there is an increasing demand for new photosensitizers capable of efficiently absorbing in the near-infrared (NIR) region, enabling antibacterial treatment in deeper sites. Additionally, advanced strategies need to be developed to avert drug resistance stemming from prolonged exposure. Herein, we have designed a conjugated oligoelectrolyte, namely TTQAd, with a donor-acceptor-donor (D-A-D) backbone, enabling the generation of reactive oxygen species (ROS) under NIR light irradiation, and cationic adamantaneammonium groups on the side chains, enabling the host-guest interaction with curcubit[7]uril (CB7). Due to the amphiphilic nature of TTQAd, it could spontaneously form nanoassemblies in aqueous solution. Upon CB7 treatment, the positive charge of the cationic adamantaneammonium group was largely shielded by CB7, leading to a further aggregation of the nanoassemblies and a reduced antibacterial efficacy of TTQAd. Subsequent treatment with competitor guests enables the release of TTQAd and restores its antibacterial effect. The reversible supramolecular switch for regulating the antibacterial effect offers the potential for the controlled release of active photosensitizers, thereby showing promise in preventing the emergence of drug-resistant bacteria.
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Affiliation(s)
- Yu-Na Jiang
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo 315302, China
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Manqi Tan
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo 315302, China
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Chenglong He
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo 315302, China
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Jiaxi Wang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yi Wei
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Ningning Jing
- College of Science and Technology, Ningbo University, Ningbo 315300, China
| | - Bing Wang
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Ningbo Cixi Institute of Biomedical Engineering, Ningbo 315300, China
| | - Fang Yang
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo 315302, China
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Ningbo Cixi Institute of Biomedical Engineering, Ningbo 315300, China
| | - Yujie Zhang
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo 315302, China
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Ningbo Cixi Institute of Biomedical Engineering, Ningbo 315300, China
| | - Meng Li
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Ningbo Cixi Institute of Biomedical Engineering, Ningbo 315300, China
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27
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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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28
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Zaorska E, Malinska M. Cucurbit[7]uril-mediated Histidine Dimerization: Exploring the Structure and Binding Mechanism. Chemistry 2024; 30:e202302250. [PMID: 38055216 DOI: 10.1002/chem.202302250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 12/01/2023] [Accepted: 12/03/2023] [Indexed: 12/07/2023]
Abstract
Cucurbit[7,8]urils are known to form inclusion complexes with hydrophobic amino acids such as Trp, Tyr, Phe, and Met, as well as peptides containing these residues at the N-terminus. Despite their widespread use in protein purification, the affinity of histidine (His) for cucurbit[7,8]urils has not been extensively explored. In this study, X-ray diffraction experiments were conducted to investigate the binding of two histidine moieties to the cucurbit[7]uril (CB7) cavity, resulting in a network of π-π and hydrogen bonds. This assembly was found to induce a His pKa shift of ΔpKa=-4. Histidine weakly bound to CB7 or CB8; however, isothermal titration calorimetry revealed micromolar equilibrium dissociation constant values for CB7 and CB8 when bound to dipeptides containing His at the C-terminus. Conversely, dipeptides with His at the N-terminus exhibited millimolar values. Additionally, the His-Gly-Gly tripeptide formed a 2 : 1 complex with CB7. These findings suggest the potential use of histidine and histidine-containing tags in conjunction with CB7 for various biological applications.
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Affiliation(s)
- Ewelina Zaorska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Maura Malinska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
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29
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Batarchuk V, Shepelytskyi Y, Grynko V, Kovacs AH, Hodgson A, Rodriguez K, Aldossary R, Talwar T, Hasselbrink C, Ruset IC, DeBoef B, Albert MS. Hyperpolarized Xenon-129 Chemical Exchange Saturation Transfer (HyperCEST) Molecular Imaging: Achievements and Future Challenges. Int J Mol Sci 2024; 25:1939. [PMID: 38339217 PMCID: PMC10856220 DOI: 10.3390/ijms25031939] [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: 01/01/2024] [Revised: 01/25/2024] [Accepted: 01/28/2024] [Indexed: 02/12/2024] Open
Abstract
Molecular magnetic resonance imaging (MRI) is an emerging field that is set to revolutionize our perspective of disease diagnosis, treatment efficacy monitoring, and precision medicine in full concordance with personalized medicine. A wide range of hyperpolarized (HP) 129Xe biosensors have been recently developed, demonstrating their potential applications in molecular settings, and achieving notable success within in vitro studies. The favorable nuclear magnetic resonance properties of 129Xe, coupled with its non-toxic nature, high solubility in biological tissues, and capacity to dissolve in blood and diffuse across membranes, highlight its superior role for applications in molecular MRI settings. The incorporation of reporters that combine signal enhancement from both hyperpolarized 129Xe and chemical exchange saturation transfer holds the potential to address the primary limitation of low sensitivity observed in conventional MRI. This review provides a summary of the various applications of HP 129Xe biosensors developed over the last decade, specifically highlighting their use in MRI. Moreover, this paper addresses the evolution of in vivo applications of HP 129Xe, discussing its potential transition into clinical settings.
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Affiliation(s)
- Viktoriia Batarchuk
- Chemistry Department, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (V.B.)
- Thunder Bay Regional Health Research Institute, Thunder Bay, ON P7B 6V4, Canada
| | - Yurii Shepelytskyi
- Chemistry Department, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (V.B.)
- Thunder Bay Regional Health Research Institute, Thunder Bay, ON P7B 6V4, Canada
| | - Vira Grynko
- Thunder Bay Regional Health Research Institute, Thunder Bay, ON P7B 6V4, Canada
- Chemistry and Materials Science Program, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
| | - Antal Halen Kovacs
- Applied Life Science Program, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
| | - Aaron Hodgson
- Physics Program, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
| | - Karla Rodriguez
- Chemistry Department, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (V.B.)
| | - Ruba Aldossary
- Thunder Bay Regional Health Research Institute, Thunder Bay, ON P7B 6V4, Canada
| | - Tanu Talwar
- Chemistry Department, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (V.B.)
| | - Carson Hasselbrink
- Chemistry & Biochemistry Department, California Polytechnic State University, San Luis Obispo, CA 93407-005, USA
| | | | - Brenton DeBoef
- Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA
| | - Mitchell S. Albert
- Chemistry Department, Lakehead University, Thunder Bay, ON P7B 5E1, Canada; (V.B.)
- Thunder Bay Regional Health Research Institute, Thunder Bay, ON P7B 6V4, Canada
- Faculty of Medical Sciences, Northern Ontario School of Medicine, Thunder Bay, ON P7B 5E1, Canada
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30
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Balaram P. William L. Mock and Cucurbituril: The Resurrection of the Behrend Paper of 1905. ACS OMEGA 2024; 9:4162-4165. [PMID: 38313500 PMCID: PMC10831821 DOI: 10.1021/acsomega.3c07196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/02/2023] [Accepted: 12/20/2023] [Indexed: 02/06/2024]
Abstract
In 1905, Robert Behrend reported the preparation of a substance that remained a dry powder despite absorbing water and that had the ability to absorb dyes from solution. Over seven decades later, William L. Mock repeated the Behrend synthesis and discovered cucurbituril, a remarkably symmetric molecule with a central cavity welcoming diverse guests. Mock et al. ploughed a lonely furrow in the 1980s, establishing the versatility of cucurbituril in the field of supramolecular chemistry, including a demonstration of the Huisgen click reaction in a molecular cavity.
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31
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Pashkina E, Aktanova A, Boeva O, Bykova M, Gavrilova E, Goiman E, Kovalenko E, Saleh N, Grishina L, Kozlov V. Evaluation of the Immunosafety of Cucurbit[n]uril In Vivo. Pharmaceutics 2024; 16:127. [PMID: 38276497 PMCID: PMC10820314 DOI: 10.3390/pharmaceutics16010127] [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: 11/22/2023] [Revised: 01/08/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
Cucurbiturils are a family of macrocyclic oligomers capable of forming host-guest complexes with various molecules. Due to noncovalent binding to drug molecules and low toxicity, cucurbiturils has been extensively investigated as potential carriers for drug delivery. However, the immune system's interactions with different drug carriers, including cucurbiturils, are still under investigation. In this study, we focused on cucurbiturils' immunosafety and immunomodulation properties in vivo. We measured blood counts and lymphocyte subpopulations in blood, spleen, and bone marrow, and assessed the in vivo toxicity to spleen and bone marrow cells after intraperitoneal administration to BALB/c mice. When assessing the effect of cucurbit[6]uril on blood parameters after three intraperitoneal injections within a week in laboratory animals, a decrease in white blood cells was found in mice after injections of cucurbit[6]util, but the observed decrease in the number of white blood cells was within the normal range. At the same time, cucurbit[7]uril and cucurbit[8]uril did not affect the leukocyte counts of mice after three injections. Changes in the number of platelets, erythrocytes, and monocytes, as well as in several other indicators, such as hematocrit or erythrocyte volumetric dispersion, were not detected. We show that cucurbiturils do not have immunotoxicity in vivo, with the exception of a cytotoxic effect on spleen cells after сucurbit[7]uril administration at a high dosage. We also evaluated the effect of cucurbiturils on cellular and humoral immune responses. We founded that cucurbiturils in high concentrations affect the immune system in vivo, and the action of various cucurbiturils differs in different homologues, which is apparently associated with different interactions in the internal environment of the body.
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Affiliation(s)
- Ekaterina Pashkina
- Research Institute of Fundamental and Clinical Immunology, 14, Yadrintsevskaya St., 630099 Novosibirsk, Russia
- Department of Clinical Immunology, Novosibirsk State Medical University, 52, Krasny Prospect, 630091 Novosibirsk, Russia
| | - Alina Aktanova
- Research Institute of Fundamental and Clinical Immunology, 14, Yadrintsevskaya St., 630099 Novosibirsk, Russia
- Department of Clinical Immunology, Novosibirsk State Medical University, 52, Krasny Prospect, 630091 Novosibirsk, Russia
| | - Olga Boeva
- Research Institute of Fundamental and Clinical Immunology, 14, Yadrintsevskaya St., 630099 Novosibirsk, Russia
| | - Maria Bykova
- Research Institute of Fundamental and Clinical Immunology, 14, Yadrintsevskaya St., 630099 Novosibirsk, Russia
| | - Elena Gavrilova
- Research Institute of Fundamental and Clinical Immunology, 14, Yadrintsevskaya St., 630099 Novosibirsk, Russia
| | - Elena Goiman
- Research Institute of Fundamental and Clinical Immunology, 14, Yadrintsevskaya St., 630099 Novosibirsk, Russia
| | | | - Na’il Saleh
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates;
| | - Lyubov Grishina
- Research Institute of Fundamental and Clinical Immunology, 14, Yadrintsevskaya St., 630099 Novosibirsk, Russia
| | - Vladimir Kozlov
- Research Institute of Fundamental and Clinical Immunology, 14, Yadrintsevskaya St., 630099 Novosibirsk, Russia
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32
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Ye Y, Ma P, Ma Y, Yang N, Chen X, Yang X, Shen L, Xiao X. Study on the host-guest interactions between tetramethyl cucurbit[6]uril and 2-heterocyclic-substituted benzimidazoles. RSC Adv 2024; 14:2652-2658. [PMID: 38229718 PMCID: PMC10790279 DOI: 10.1039/d3ra07810h] [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: 11/15/2023] [Accepted: 01/06/2024] [Indexed: 01/18/2024] Open
Abstract
Cucurbit[n]urils (Q[n]s) are a class of supramolecular host compounds with hydrophilic carbonyl ports and hydrophobic cavities, which can selectively form host-guest inclusion complexes with guest molecules to change the properties of guest molecules. In this paper, tetramethyl cucurbit[6]uril (TMeQ[6]) was used as the host and three 2-heterocyclic substituted benzimidazole derivatives as the guests, and their modes of interaction were investigated using X-ray crystallography, 1H NMR spectrometry, and other analytical techniques. The results showed that TMeQ[6] formed a 1 : 1 host-guest inclusion complex with three guest molecules, and the binding process between them was mainly enthalpy-driven. The X-ray diffraction analysis indicated that the main driving forces for the formation of these three inclusion complexes included hydrogen bonding interactions and ion dipole interactions. There are two modes of interaction between G3 and TMeQ[6] in the liquid phase, indicating that the benzimidazole ring and heterocyclic substituents on the guest molecule compete with the cavity of TMeQ[6]. Besides, the addition of TMeQ[6] significantly enhanced the fluorescence of these guests and slightly improved their solubility.
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Affiliation(s)
- Yanan Ye
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University Guiyang 550025 China
| | - Peihua Ma
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University Guiyang 550025 China
| | - Yue Ma
- Guiyang College of Humanities and Science Guiyang 550025 China
| | - Naqin Yang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University Guiyang 550025 China
| | - Xiaoqian Chen
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University Guiyang 550025 China
| | - Xinan Yang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University Guiyang 550025 China
| | - Lingyi Shen
- School of Basic Medicine, Guizhou Medical University Guiyang 550025 China
| | - Xin Xiao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University Guiyang 550025 China
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Yin H, Rosas R, Viel S, Giorgi M, Monnier V, Charles L, Siri D, Gigmes D, Nassar Y, Chevallier F, Bucher C, Wang R, Kermagoret A, Bardelang D. Internal Dynamics and Modular Peripheral Binding in Stimuli-Responsive 3 : 2 Host:Guest Complexes. Angew Chem Int Ed Engl 2024; 63:e202315985. [PMID: 38009627 DOI: 10.1002/anie.202315985] [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: 10/22/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 11/29/2023]
Abstract
Now that the chemistry of 1 : 1 host:guest complexes is well-established, it is surprising to note that higher stoichiometry (oligomeric) complexes, especially those with excess host, remain largely unexplored. Yet, proteins tend to oligomerize, affording new functions for cell machinery. Here, we show that cucurbit[n]uril (CB[n]) macrocycles combined with symmetric, linear di-viologens form unusual 3 : 2 host:guest complexes exhibiting remarkable dynamic properties, host self-sorting, and external ring-translocation. These results highlight the structural tunability of cucurbit[8]uril (CB[8]) based 3 : 2 host:guest complexes in water and their responsiveness toward several stimuli (chemicals, pH, redox).
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Affiliation(s)
- Hang Yin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China
| | - Roselyne Rosas
- Aix Marseille Univ, CNRS, Centrale Marseille, FSCM, Spectropole, Marseille, France
| | - Stéphane Viel
- Aix Marseille Univ, CNRS, ICR, AMUtech, Marseille, France
- Institut Universitaire de France, 75005, Paris, France
| | - Michel Giorgi
- Aix Marseille Univ, CNRS, Centrale Marseille, FSCM, Spectropole, Marseille, France
| | - Valerie Monnier
- Aix Marseille Univ, CNRS, Centrale Marseille, FSCM, Spectropole, Marseille, France
| | | | - Didier Siri
- Aix Marseille Univ, CNRS, ICR, AMUtech, Marseille, France
| | - Didier Gigmes
- Aix Marseille Univ, CNRS, ICR, AMUtech, Marseille, France
| | - Youssef Nassar
- Univ Lyon, Ens de Lyon, CNRS UMR 5182, Laboratoire de Chimie, 69342, Lyon, France
| | - Floris Chevallier
- Univ Lyon, Ens de Lyon, CNRS UMR 5182, Laboratoire de Chimie, 69342, Lyon, France
| | - Christophe Bucher
- Univ Lyon, Ens de Lyon, CNRS UMR 5182, Laboratoire de Chimie, 69342, Lyon, France
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China
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34
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Wang H, Liu H, Wang M, Hou J, Li Y, Wang Y, Zhao Y. Cucurbituril-based supramolecular host-guest complexes: single-crystal structures and dual-state fluorescence enhancement. Chem Sci 2024; 15:458-465. [PMID: 38179534 PMCID: PMC10762720 DOI: 10.1039/d3sc04813f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/29/2023] [Indexed: 01/06/2024] Open
Abstract
Two supramolecular complexes were prepared using cucurbiturils [CBs] as mediators and a four-armed p-xylene derivative (M1) as a guest molecule. The single crystals of these two complexes were obtained and successfully analyzed by single-crystal X-ray diffraction (SCXRD). An unexpected and intriguing 1 : 2 self-assembly arrangement between M1 and CB[8] was notably uncovered, marking its first observation. These host-guest complexes exhibit distinctive photophysical properties, especially emission behaviors. Invaluable insights can be derived from these single-crystal structures. The precious single-crystal structures provide both precise structural information regarding the supramolecular complexes and a deeper understanding of the intricate mechanisms governing their photophysical properties.
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Affiliation(s)
- Hui Wang
- College of Polymer Science and Engineering, Qingdao University of Science and Technology Qingdao 266042 China
- College of Chemical Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Hui Liu
- College of Polymer Science and Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Mingsen Wang
- College of Polymer Science and Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Jiaheng Hou
- College of Polymer Science and Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Yongjun Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS. Key Laboratory of Organic Solids, Institute of Chemistry, Chinese. Academy of Sciences Beijing 100190 P. R. China
| | - Yuancheng Wang
- College of Polymer Science and Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Yingjie Zhao
- College of Polymer Science and Engineering, Qingdao University of Science and Technology Qingdao 266042 China
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Massaro M, Cinà G, Borrego-Sánchez A, Sainz-Díaz CI, Viseras-Iborra C, Sánchez-Espejo R, de Melo Barbosa R, Leone F, Pibiri I, Noto R, Riela S. Thixotropic Hydrogels Based on Laponite® and Cucurbituril for Delivery of Lipophilic Drug Molecules. Chempluschem 2024; 89:e202300370. [PMID: 37767728 DOI: 10.1002/cplu.202300370] [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: 08/01/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 09/29/2023]
Abstract
Nowadays the use of hydrogels for biomedical purposes is increasing because of their interesting features that allow the development of targeted drug delivery systems. Herein, hydrogel based on Laponite® (Lap) clay mineral as gelator and cucurbit[6]uril (CB[6]) molecules were synthetized for the delivery of flufenamic acid (FFA) for potential topical application. Firstly, the interaction between CB[6] and FFA was assessed by UV-vis spectroscopic measurements and molecular modeling calculations. Then, the obtained complex was used as filler for Lap hydrogel (Lap/CB[6]/FFA). The properties of the hydrogel in terms of viscosity and, self-repair abilities were investigated; its morphology was imaged by scanning electron and polarized optical microscopies. Furthermore, the changes in the hydrodynamic radii and in the colloidal stability of CB[6]/Lap mixture were investigated in terms of translational diffusion from dynamic light scattering and ζ-potential measurements. Finally, the kinetic in vitro release of FFA, from Lap/CB[6]/FFA hydrogel, was studied in a medium mimicking the pH of skin and the obtained results were discussed both by an experimental point of view and by molecular modeling calculations.
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Affiliation(s)
- Marina Massaro
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, V.le delle Scienze, Ed. 17 "Stanislao Cannizzaro", 90128, Palermo, Italy
| | - Giuseppe Cinà
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, V.le delle Scienze, Ed. 17 "Stanislao Cannizzaro", 90128, Palermo, Italy
| | - Ana Borrego-Sánchez
- Instituto de Ciencia Molecular, Universitat de València, Carrer del Catedrátic José Beltrán Martinez 2, 46980, Paterna, Spain
| | - C Ignacio Sainz-Díaz
- Instituto Andaluz de Ciencias de la Tierra, Consejo Superior de Investigaciones Científicas- Universidad de Granada (CSIC-UGR), Av. de las Palmeras, 4, 18100-Armilla, Granada, Spain
| | - César Viseras-Iborra
- Instituto Andaluz de Ciencias de la Tierra, Consejo Superior de Investigaciones Científicas- Universidad de Granada (CSIC-UGR), Av. de las Palmeras, 4, 18100-Armilla, Granada, Spain
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, s/n, 18071, Granada, Spain
| | - Rita Sánchez-Espejo
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, s/n, 18071, Granada, Spain
| | - Raquel de Melo Barbosa
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, s/n, 18071, Granada, Spain
| | - Federica Leone
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, V.le delle Scienze, Ed. 17 "Stanislao Cannizzaro", 90128, Palermo, Italy
| | - Ivana Pibiri
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, V.le delle Scienze, Ed. 17 "Stanislao Cannizzaro", 90128, Palermo, Italy
| | - Renato Noto
- University of Palermo, V.le delle Scienze, Ed. 17 "Stanislao Cannizzaro", 90128, Palermo, Italy
| | - Serena Riela
- Dipartimento di Scienze Chimiche, University of Catania, Via A. Doria, 6, 95125, Catania, Italy
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Chowdhury A, Goswami S. Study of Drug Delivery Using Purely Organic Macrocyclic Containers-Cucurbit[7]uril and Pillararene. ACS OMEGA 2023; 8:47340-47366. [PMID: 38144095 PMCID: PMC10733925 DOI: 10.1021/acsomega.3c05465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/10/2023] [Accepted: 11/20/2023] [Indexed: 12/26/2023]
Abstract
An impaired immune system is the root of various human ailments provoking the urge to find vehicle-mediated quick delivery of small drug molecules and other vital metabolites to specific tissues and organs. Thus, drug delivery strategies are in need of improvement in therapeutic efficacy. It can be achieved only by increasing the drug-loading capacity, increasing the sustained release of a drug to its target site, easy relocation of drug molecules associated with facile complexation-induced properties of molecular vehicles, and high stimuli-responsive drug administration. Supramolecular drug delivery systems (SDDS) provide a much needed robust yet facile platform for fabricating innovative drug nanocarriers assembled by thermodynamically noncovalent interaction with the tunable framework and above-mentioned properties. Measures of cytotoxicity and biocompatibility are the two main criteria that lie at the root of any promising medicinal applications. This Review features significant advancements in (i) supramolecular host-guest complexation using cucurbit[7]uril (CB[7]), (ii) encapsulation of the drug and its delivery application tailored for CB[7], (iii) self-assembly of supramolecular amphiphiles, (iv) supramolecular guest relay using host-protein nanocavities, (v) pillararene (a unique macrocyclic host)-mediated SDDS for the delivery of smart nanodrugs for siRNA, fluorescent molecules, and insulin for juvenile diabetes. Furthermore, fundamental questions and future hurdles related to smart SDDS based on CB[7] and pillararenes and their future promising breakthrough implementations are also distinctly outlined in this Review.
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Affiliation(s)
- Arnab
Roy Chowdhury
- Department of Chemistry, Amity
University Kolkata, Kolkata, West Bengal 700135, India
| | - Soumyabrata Goswami
- Department of Chemistry, Amity
University Kolkata, Kolkata, West Bengal 700135, India
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37
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Kircheva N, Petkova V, Dobrev S, Nikolova V, Angelova S, Dudev T. N-Methyl- and N-Phenylpiperazine Functionalized Styryl Dyes Inside Cucurbiturils: Theoretical Assessment of the Factors Governing the Host-Guest Recognition. Molecules 2023; 28:8130. [PMID: 38138619 PMCID: PMC10746092 DOI: 10.3390/molecules28248130] [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: 11/19/2023] [Revised: 12/04/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
The family of cucurbiturils (CBs), the unique pumpkin-shaped macrocycles, has received great attention over the past four decades owing to their remarkable recognition properties. They have found diverse applications including biosensing and drug delivery technologies. The cucurbituril complexation of guest molecules can modulate their pKas, improve their solubility in aqueous solution, and reduce the adverse effects of the drugs, as well as enhance the stability and/or enable targeted delivery of the drug molecule. Employing twelve cationic styryl dyes with N-methyl- and N-phenylpiperazine functionality as probes, we attempted to understand the factors that govern the host-guest complexation of such molecules within CB[7] and CB[8] host systems. Various key factors determining the process were recognized, such as the pH and dielectric constant of the medium, the cavity size of the host, the chemical characteristics of the substituents in the guest entity, and the presence/absence of metal cations. The presented results add to our understanding (at the molecular level) of the mechanism of encapsulation of styryl dyes by cucurbiturils, thus shedding new light on various aspects of the intriguing complexation chemistry and the underlying recognition processes.
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Affiliation(s)
- Nikoleta Kircheva
- Institute of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (N.K.); (V.P.); (S.D.); (S.A.)
| | - Vladislava Petkova
- Institute of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (N.K.); (V.P.); (S.D.); (S.A.)
| | - Stefan Dobrev
- Institute of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (N.K.); (V.P.); (S.D.); (S.A.)
| | - Valya Nikolova
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1164 Sofia, Bulgaria;
| | - Silvia Angelova
- Institute of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (N.K.); (V.P.); (S.D.); (S.A.)
- University of Chemical Technology and Metallurgy, 8 St. Kliment Ohridski Blvd, 1756 Sofia, Bulgaria
| | - Todor Dudev
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1164 Sofia, Bulgaria;
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38
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Huang F, Liu J, Li M, Liu Y. Nanoconstruction on Living Cell Surfaces with Cucurbit[7]uril-Based Supramolecular Polymer Chemistry: Toward Cell-Based Delivery of Bio-Orthogonal Catalytic Systems. J Am Chem Soc 2023; 145:26983-26992. [PMID: 38032103 DOI: 10.1021/jacs.3c10295] [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: 12/01/2023]
Abstract
Employing living cells as carriers to transport transition metal-based catalysts for target-specific bio-orthogonal catalysis represents a cutting-edge approach in advancing precision biomedical applications. One of the initial hurdles in this endeavor involves effectively attaching the catalysts to the carrier cells while preserving the cells' innate ability to interact with biological systems and maintaining the unaltered catalytic activity. In this study, we have developed an innovative layer-by-layer method that leverages a noncovalent interaction between cucurbit[7]uril and adamantane as the primary driving force for crafting polymeric nanostructures on the surfaces of these carrier cells. The strong binding affinity between the host-guest pair ensures the creation of a durable polymer coating on the cell surfaces. Meanwhile, the layer-by-layer process offers high adaptability, facilitating the efficient loading of bio-orthogonal catalysts onto cell surfaces. Importantly, the polymeric coating shows no discernible impact on the cells' physiological characteristics, including their tropism, migration, and differentiation, while preserving the effectiveness of the bio-orthogonal catalysts.
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Affiliation(s)
- Fang Huang
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
| | - Jiaxiong Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
| | - Mengru Li
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
| | - Yiliu Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
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Oakley MS, Oakes MR, Wagner BD, Pearson JK. Uncovering the mechanism of selective stabilization of high-energy diastereoisomers via inclusion. Theor Chem Acc 2023; 143:4. [PMID: 38098891 PMCID: PMC10716081 DOI: 10.1007/s00214-023-03077-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 12/17/2023]
Abstract
Supramolecular systems may be used to stabilize otherwise unstable isomers to find alternative synthetic pathways. It has been reported that cucurbit[8]uril can stabilize trans-I and trans-II CuII cyclam, whereas trans-III is the only non-substituted trans CuII cyclam diastereoisomer found outside of the host molecule experimentally. Quantum chemistry methods can provide valuable insight into the intermolecular interactions involved in these inclusion complexes. All five possible trans diastereoisomers of CuII cyclam were studied within the host molecule to calculate the interaction energy and free energy of association for each complex. The relative free energies of the five free cyclams confirm that trans-I and trans-II are the most energetically accessible diastereoisomers from the initial trans-III starting point. Energy decomposition analysis was used to identify the attractive and repulsive interactions between cyclam and cucurbit[8]uril and showed that trans-II encounters repulsive forces almost three times greater than trans-I, which may explain the 7:3 ratio of trans-I to trans-II within cucurbit[8]uril that occurs experimentally. Optimized complex geometries with trans-III, IV, and V show that the cyclams protrude out of cucurbit[8]uril, whereas trans-I and trans-II become more encapsulated and elongate the host, suggesting that the position of the cyclam is extremely important when forming non-covalent interactions. Our results agree with the experimental findings and provide greater insight into why the most stable isolated cyclam diastereoisomer, trans-III, does not form a complex. Supplementary Information The online version contains supplementary material available at 10.1007/s00214-023-03077-7.
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Affiliation(s)
- Meagan S. Oakley
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL UK
- Department of Chemistry, University of Prince Edward Island, Charlottetown, PE C1A 4P3 Canada
| | - Madaline R. Oakes
- Chemical Theory Center, Department of Chemistry, Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455 USA
| | - Brian D. Wagner
- Department of Chemistry, University of Prince Edward Island, Charlottetown, PE C1A 4P3 Canada
| | - Jason K. Pearson
- Department of Chemistry, University of Prince Edward Island, Charlottetown, PE C1A 4P3 Canada
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40
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Liu F, Kriat A, Rosas R, Bergé-Lefranc D, Gigmes D, Pascal S, Siri O, Liu S, Kermagoret A, Bardelang D. Controlled oligomeric guest stacking by cucurbiturils in water. Org Biomol Chem 2023; 21:9433-9442. [PMID: 37991010 DOI: 10.1039/d3ob01723k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Previously, we reported a guest molecule containing a viologen (V), a phenylene (P) and an imidazole (I) fragment (VPI) forming a host : guest 2 : 2 complex with cucurbit[8]uril (CB[8]) and an unprecedented 2 : 3 complex with cucurbit[10]uril (CB[10]). To better address the structural features required to form these complexes, two VPI analogues were designed and synthesized: the first with a tolyl (T) group grafted on the V part (T-VPI) and the second with a naphthalene (N) fused on the imidazole (I) part (VPI-N). While VPI-N afforded a discrete well-defined 2 : 2 complex with CB[8] and a 2 : 3 complex with CB[10], T-VPI organized also as a 2 : 2 complex with CB[8] but no well-defined complex was obtained with CB[10]. These complexes were studied by NMR spectroscopy, notably DOSY, which allowed us to estimate binding constants for 2 : 2 complex formation with CB[8], pointing to more stable 2 : 2 complexes with more hydrophobic guests. UV-vis and fluorescence spectroscopy confirmed complex formation, suggesting host-stabilized charge-transfer interactions. Therefore, the simple addition of CB[8] or CB[10] enabled us to control the level of guest stacking (dimer or trimer) using relevant pairs of synthetic hosts through spontaneous host : guest quaternary or quinary self-assembly.
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Affiliation(s)
- Fengbo Liu
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China.
| | - Amine Kriat
- Aix Marseille Univ, CNRS, ICR, AMUTech, Marseille, France.
| | - Roselyne Rosas
- Aix Marseille Univ, CNRS, FSCM, Spectropole, Marseille, France
| | | | - Didier Gigmes
- Aix Marseille Univ, CNRS, ICR, AMUTech, Marseille, France.
| | - Simon Pascal
- Aix Marseille Univ, CNRS, CINAM, AMUTech, Marseille, France.
| | - Olivier Siri
- Aix Marseille Univ, CNRS, CINAM, AMUTech, Marseille, France.
| | - Simin Liu
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China.
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41
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He S, Huang B, Xiao B, Chang S, Podalko M, Nau WM. Stabilization of Guest Molecules inside Cation-Lidded Cucurbiturils Reveals that Hydration of Receptor Sites Can Impede Binding. Angew Chem Int Ed Engl 2023; 62:e202313864. [PMID: 37812692 DOI: 10.1002/anie.202313864] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/11/2023]
Abstract
Docking of alkali metal ions to water-soluble macrocyclic receptors generally reduces the affinity of guest molecules due to competitive binding. The idea that solvation water molecules could display a larger steric hindrance towards guest binding than cations has not been considered to date. We show that the docking of large cations to cucurbit[5]uril (CB5) unexpectedly increases (by a factor of 5-8) the binding of hydrophobic guests, methane and ethane. This is due to the removal of water molecules from the carbonyl portals of CB5 during cation binding, which frees up space for hydrophobe encapsulation. In contrast, smaller cations like sodium protrude deeply into the cavity of CB5 and cause the expected decrease in binding, such that the rational selection of alkali cations allows for a variation of up to a factor of 20 in binding of methane and ethane. The statistical analysis of crystallographic data shows that the cavity volume of CB5 can be enlarged by placing large alkali ions (Rb+ and Cs+ ) centro-symmetrically at the portals. The results reveal a hitherto elusive steric hindrance of solvation water molecules near receptor binding sites, which is pertinent for the design of supramolecular catalysts and the understanding of biological receptors.
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Affiliation(s)
- Suhang He
- School of Science, Constructor University, Campus Ring 1, 28759, Bremen, Germany
- Center of Single-Molecule Sciences, College of Electronic Information and Optical Engineering, Nankai University, 38 Tongyan Road, Jinnan District, 300350, Tianjin, China
| | - Bing Huang
- Faculty of Physics, University of Vienna, Kolingasse 14-16, 10905, Vienna, Austria
| | - Bohuai Xiao
- The State Key Laboratory of Refractories and Metallurgy, Faculty of Materials, Wuhan University of Science and Technology, 430081, Wuhan, Hubei, China
| | - Shuai Chang
- The State Key Laboratory of Refractories and Metallurgy, Faculty of Materials, Wuhan University of Science and Technology, 430081, Wuhan, Hubei, China
| | - Marina Podalko
- School of Science, Constructor University, Campus Ring 1, 28759, Bremen, Germany
| | - Werner M Nau
- School of Science, Constructor University, Campus Ring 1, 28759, Bremen, Germany
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42
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Zhang L, Xu Y, Wei W. Water-soluble organic macrocycles based on dye chromophores and their applications. Chem Commun (Camb) 2023; 59:13562-13570. [PMID: 37901908 DOI: 10.1039/d3cc04159j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Traditional water-soluble organic macrocyclic receptors generally lack photofunctionality, thus monitoring the drug delivery and the phototheranostic applications of these host-guest macrocyclic systems has been greatly restricted. To address this issue, incorporating π-conjugated dye chromophores as building blocks into macrocyclic molecules is a straightforward and promising strategy. This approach not only imparts intrinsic optical features to the macrocycles themselves but also enhances the host-guest binding ability due to the large planar structures of the dyes. In this feature article, we focus on recent advances in water-soluble macrocyclic compounds based on organic dye chromophores, such as naphthalimide (NDI), perylene diimides (PDI), azobenzene (azo), tetraphenylethylene (TPE) and anthracene, and provide an overview of their various applications including molecular recognition, drug release, biological imaging, photothermal therapy, etc. We hope that this article could be helpful and instructive for the design of water-soluble dye-based macrocycles and the further development of their biomedical applications, particularly in combination with drug therapy and phototheranostics.
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Affiliation(s)
- Luying Zhang
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Yanqing Xu
- Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Wei Wei
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.
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43
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Grimm LM, Setiadi J, Tkachenko B, Schreiner PR, Gilson MK, Biedermann F. The temperature-dependence of host-guest binding thermodynamics: experimental and simulation studies. Chem Sci 2023; 14:11818-11829. [PMID: 37920355 PMCID: PMC10619620 DOI: 10.1039/d3sc01975f] [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: 04/16/2023] [Accepted: 09/24/2023] [Indexed: 11/04/2023] Open
Abstract
The thermodynamic parameters of host-guest binding can be used to describe, understand, and predict molecular recognition events in aqueous systems. However, interpreting binding thermodynamics remains challenging, even for these relatively simple molecules, as they are determined by both direct and solvent-mediated host-guest interactions. In this contribution, we focus on the contributions of water to binding by studying binding thermodynamics, both experimentally and computationally, for a series of nearly rigid, electrically neutral host-guest systems and report the temperature-dependent thermodynamic binding contributions ΔGb(T), ΔHb(T), ΔSb(T), and ΔCp,b. Combining isothermal titration calorimetry (ITC) measurements with molecular dynamics (MD) simulations, we provide insight into the binding forces at play for the macrocyclic hosts cucurbit[n]uril (CBn, n = 7-8) and β-cyclodextrin (β-CD) with a range of guest molecules. We find consistently negative changes in heat capacity on binding (ΔCp,b) for all systems studied herein - as well as for literature host-guest systems - indicating increased enthalpic driving forces for binding at higher temperatures. We ascribe these trends to solvation effects, as the solvent properties of water deteriorate as temperature rises. Unlike the entropic and enthalpic contributions to binding, with their differing signs and magnitudes for the classical and non-classical hydrophobic effect, heat capacity changes appear to be a unifying and more general feature of host-guest complex formation in water. This work has implications for understanding protein-ligand interactions and other complex systems in aqueous environments.
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Affiliation(s)
- Laura M Grimm
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Jeffry Setiadi
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego 9255 Pharmacy Lane La Jolla CA 92093 USA
| | - Boryslav Tkachenko
- Institute of Organic Chemistry, Justus Liebig University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
| | - Peter R Schreiner
- Institute of Organic Chemistry, Justus Liebig University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
| | - Michael K Gilson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego 9255 Pharmacy Lane La Jolla CA 92093 USA
| | - Frank Biedermann
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz Platz 1 76344 Eggenstein-Leopoldshafen Germany
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44
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Heidecker AA, Stasi M, Spears A, Boekhoven J, Pöthig A. Silver and Gold Pillarplex Pseudorotaxanes from α,ω-Dicarboxylic Acids. Chempluschem 2023; 88:e202300234. [PMID: 37306394 DOI: 10.1002/cplu.202300234] [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: 05/16/2023] [Revised: 06/09/2023] [Accepted: 06/12/2023] [Indexed: 06/13/2023]
Abstract
A series of pseudorotaxanes with supramolecular organometallic silver(I) and gold(I) pillarplexes acting as rings and different α,ω-dicarboxylic acids as axle components are reported. The successful formation of the host-guest complexes is shown by 1 H NMR spectroscopy and respective NMR titration. Additional evaluation with ITC titration experiments yielded dissociation constants (Kd ) ranging from 10-5 to 10-7 M. Single-crystal X-Ray diffraction analysis reveals a particularly exciting pore alignment of different examples in the solid state depending on the length of the guest. The work highlights, that dicarboxylic acids can penetrate the tight tubular pillarplex pore, paving the way to future mechanically interlocked molecules and materials.
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Affiliation(s)
- Alexandra A Heidecker
- Technical University of Munich, TUM School of Natural Sciences, Department of Chemistry, Chair of Inorganic and Metal-Organic Chemistry, Catalysis Research Center (CRC), Ernst-Otto-Fischer-Straße 1, 85748, Garching, Germany
| | - Michele Stasi
- Technical University of Munich, TUM School of Natural Sciences, Department of Chemistry, Chair of Supramolecular Chemistry Lichtenbergstraße 4, 85748, Garching, Germany
| | - Alexander Spears
- Technical University of Munich, TUM School of Natural Sciences, Department of Chemistry, Chair of Inorganic and Metal-Organic Chemistry, Catalysis Research Center (CRC), Ernst-Otto-Fischer-Straße 1, 85748, Garching, Germany
| | - Job Boekhoven
- Technical University of Munich, TUM School of Natural Sciences, Department of Chemistry, Chair of Supramolecular Chemistry Lichtenbergstraße 4, 85748, Garching, Germany
| | - Alexander Pöthig
- Technical University of Munich, TUM School of Natural Sciences, Department of Chemistry, Chair of Inorganic and Metal-Organic Chemistry, Catalysis Research Center (CRC), Ernst-Otto-Fischer-Straße 1, 85748, Garching, Germany
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45
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Peng WC, Lei Z, Lin QH, Wu Y, Yang JY, Wang H, Zhou W, Zhang DW, Li ZT, Ma D. Acyclic Cucurbit[n]urils: Effective Taste Masking Nanocontainers for Cationic Bitter Compounds. Chempluschem 2023; 88:e202300465. [PMID: 37752086 DOI: 10.1002/cplu.202300465] [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: 08/22/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 09/28/2023]
Abstract
New acyclic cucurbit[n]urils (ACBs) with eight carboxylate groups were synthesized. These hosts are highly soluble in water, and can form stable inclusion complexes with cationic bitter compounds. ACBs are confirmed to be non-toxic and biocompatible. Two-bottle preference (TBP) tests on mice show that all ACBs are tasteless to mammals. ACBs are discovered to mask the bitterness of berberine and denatonium benzoate, but not quinine hydrochloride, due to different binding modes.
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Affiliation(s)
- Wen-Chang Peng
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Handan Road 220, Shanghai, 200438, P. R. China
| | - Zhuo Lei
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Handan Road 220, Shanghai, 200438, P. R. China
| | - Qi-Han Lin
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Handan Road 220, Shanghai, 200438, P. R. China
| | - Yan Wu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Handan Road 220, Shanghai, 200438, P. R. China
| | - Jing-Yu Yang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Handan Road 220, Shanghai, 200438, P. R. China
| | - Hui Wang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Handan Road 220, Shanghai, 200438, P. R. China
| | - Wei Zhou
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Handan Road 220, Shanghai, 200438, P. R. China
| | - Dan-Wei Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Handan Road 220, Shanghai, 200438, P. R. China
| | - Zhan-Ting Li
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Handan Road 220, Shanghai, 200438, P. R. China
| | - Da Ma
- School of Pharmaceutical Engineering & Institute for Advanced Studies, Taizhou University, Shifu Avenue 1139 Jiaojiang, Zhejiang, 318000, P. R. China
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46
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Prchalova E, Kohoutova Z, Knittelova K, Malinak D, Musilek K. Strategies for enhanced bioavailability of oxime reactivators in the central nervous system. Arch Toxicol 2023; 97:2839-2860. [PMID: 37642747 DOI: 10.1007/s00204-023-03587-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 08/10/2023] [Indexed: 08/31/2023]
Abstract
Oxime reactivators of acetylcholinesterase are commonly used to treat highly toxic organophosphate poisoning. They are effective nucleophiles that can restore the catalytic activity of acetylcholinesterase; however, their main limitation is the difficulty in crossing the blood-brain barrier (BBB) because of their strongly hydrophilic nature. Various approaches to overcome this limitation and enhance the bioavailability of oxime reactivators in the CNS have been evaluated; these include structural modifications, conjugation with molecules that have transporters in the BBB, bypassing the BBB through intranasal delivery, and inhibition of BBB efflux transporters. A promising approach is the use of nanoparticles (NPs) as the delivery systems. Studies using mesoporous silica nanomaterials, poly (L-lysine)-graft-poly(ethylene oxide) NPs, metallic organic frameworks, poly(lactic-co-glycolic acid) NPs, human serum albumin NPs, liposomes, solid lipid NPs, and cucurbiturils, have shown promising results. Some NPs are considered as nanoreactors for organophosphate detoxification; these combine bioscavengers with encapsulated oximes. This study provides an overview and critical discussion of the strategies used to enhance the bioavailability of oxime reactivators in the central nervous system.
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Affiliation(s)
- Eliska Prchalova
- Faculty of Science, Department of Chemistry, University of Hradec Kralove, Rokitanskeho 62, 500 03, Hradec Kralove, Czech Republic
| | - Zuzana Kohoutova
- Faculty of Science, Department of Chemistry, University of Hradec Kralove, Rokitanskeho 62, 500 03, Hradec Kralove, Czech Republic
| | - Karolina Knittelova
- Faculty of Science, Department of Chemistry, University of Hradec Kralove, Rokitanskeho 62, 500 03, Hradec Kralove, Czech Republic
| | - David Malinak
- Faculty of Science, Department of Chemistry, University of Hradec Kralove, Rokitanskeho 62, 500 03, Hradec Kralove, Czech Republic.
- Biomedical Research Centre, University Hospital in Hradec Kralove, Sokolska 581, 500 05, Hradec Kralove, Czech Republic.
| | - Kamil Musilek
- Faculty of Science, Department of Chemistry, University of Hradec Kralove, Rokitanskeho 62, 500 03, Hradec Kralove, Czech Republic.
- Biomedical Research Centre, University Hospital in Hradec Kralove, Sokolska 581, 500 05, Hradec Kralove, Czech Republic.
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Yin H, Cheng Q, Bardelang D, Wang R. Challenges and Opportunities of Functionalized Cucurbiturils for Biomedical Applications. JACS AU 2023; 3:2356-2377. [PMID: 37772183 PMCID: PMC10523374 DOI: 10.1021/jacsau.3c00273] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/09/2023] [Accepted: 07/10/2023] [Indexed: 09/30/2023]
Abstract
Cucurbit[n]uril (CB[n]) macrocycles (especially CB[5] to CB[8]) have shown exceptional attributes since their discovery in 2000. Their stability, water solubility, responsiveness to several stimuli, and remarkable binding properties have enabled a growing number of biological applications. Yet, soon after their discovery, the challenge of their functionalization was set. Nevertheless, after more than two decades, a myriad of CB[n] derivatives has been described, many of them used in cells or in vivo for advanced applications. This perspective summarizes key advances of this burgeoning field and points to the next opportunities and remaining challenges to fully express the potential of these fascinating macrocycles in biology and biomedical sciences.
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Affiliation(s)
- Hang Yin
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Taipa, Macau 999078, China
| | - Qian Cheng
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Taipa, Macau 999078, China
| | | | - Ruibing Wang
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Taipa, Macau 999078, China
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Lončarić D, Movahedifar F, Štoček JR, Dračínský M, Cvačka J, Guan S, Bythell BJ, Císařová I, Masson E, Kaleta J. Solvent-controlled formation of alkali and alkali-earth-secured cucurbituril/guest trimers. Chem Sci 2023; 14:9258-9266. [PMID: 37712024 PMCID: PMC10498720 DOI: 10.1039/d3sc02032k] [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: 04/19/2023] [Accepted: 08/08/2023] [Indexed: 09/16/2023] Open
Abstract
Cucurbit[7]uril (CB[7]) encapsulates adamantyl and trimethylsilyl substituents of positively charged guests in dimethyl sulfoxide (DMSO). Unlike in water or deuterium oxide, addition of a selection of alkali and alkali-earth cations with van der Waals radii between 1.0 and 1.4 Å (Na+, K+, Ca2+, Sr2+, Ba2+ and Eu3+) to the CB[7]/guest complexes triggers their cation-mediated trimerization, a process that is very slow on the nuclear magnetic resonance (NMR) time scale. Smaller (Li+, Mg2+) or larger cations (Rb+, Cs+ or NH4+) are inert. The trimers display extensive CH-O interactions between the equatorial and pseudo-equatorial hydrogens of CB[7] and the carbonyl rim of the neighboring CB[7] unit in the trimer, and a deeply nested cation between the three interacting carbonylated CB[7] rims; a counteranion is likely perched in the shallow cavity formed by the three outer walls of CB[7] in the trimer. Remarkably, a guest must occupy the cavity of CB[7] for trimerization to take place. Using a combination of semi-empirical and density functional theory techniques in conjunction with continuum solvation models, we showed that trimerization is favored in DMSO, and not in water, because the penalty for the partial desolvation of three of the six CB[7] portals upon aggregation into a trimer is less unfavorable in DMSO compared to water.
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Affiliation(s)
- Doroteja Lončarić
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 160 00 Prague 6 Czech Republic
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague 128 40 Prague 2 Czech Republic
| | - Fahimeh Movahedifar
- Department of Chemistry and Biochemistry, Ohio University Athens Ohio 45701 USA
| | - Jakub Radek Štoček
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 160 00 Prague 6 Czech Republic
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague 128 40 Prague 2 Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 160 00 Prague 6 Czech Republic
| | - Josef Cvačka
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 160 00 Prague 6 Czech Republic
| | - Shanshan Guan
- Department of Chemistry and Biochemistry, Ohio University Athens Ohio 45701 USA
| | - Benjamin J Bythell
- Department of Chemistry and Biochemistry, Ohio University Athens Ohio 45701 USA
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University in Prague 128 40 Prague 2 Czech Republic
| | - Eric Masson
- Department of Chemistry and Biochemistry, Ohio University Athens Ohio 45701 USA
| | - Jiří Kaleta
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 160 00 Prague 6 Czech Republic
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Horin I, Slovak S, Cohen Y. Harnessing Pillar[5]arene Host-Guest Complexation To Improve pH Stability and Affect Enzymatic Degradation of the Anticancer Prodrug Capecitabine: A 19 F NMR Study. Chemistry 2023; 29:e202301628. [PMID: 37303257 DOI: 10.1002/chem.202301628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 06/13/2023]
Abstract
Cancer is a global health problem, and supramolecular chemotherapy is emerging as a novel strategy to battle the disease. Here, we first evaluated the thermodynamic and kinetic stability of the complexes formed between several water-soluble per-substituted pillar[5]arene derivatives and capecitabine (1), a widely used oral chemotherapeutic prodrug. The exchange rate was studied, for the first time in pillararene chemistry, by the 19 F guest exchange saturation transfer (GEST) NMR technique. Importantly, when we evaluated the effect of complexation on the characteristics of 1, we found that the complexation of 1 with such pillar[5]arene hosts increased capecitabine stability at acidic pH very significantly and slowed its enzymatic degradation by the carboxylesterase enzyme in a manner that depended on the host. These interesting findings could have implications on the clinical use of this heavily used prodrug and might affect the management of cancer patients.
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Affiliation(s)
- Inbar Horin
- School of Chemistry, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, 6977801, Tel Aviv, Israel
| | - Sarit Slovak
- School of Chemistry, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, 6977801, Tel Aviv, Israel
| | - Yoram Cohen
- School of Chemistry, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, 6977801, Tel Aviv, Israel
- Sagol School of Neurosciences, Tel Aviv University, Ramat Aviv, 6977801, Tel Aviv, Israel
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50
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Tse YC, Au-Yeung HY. Catenane and Rotaxane Synthesis from Cucurbit[6]uril-Mediated Azide-Alkyne Cycloaddition. Chem Asian J 2023; 18:e202300290. [PMID: 37460745 DOI: 10.1002/asia.202300290] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/29/2023] [Indexed: 08/01/2023]
Abstract
The chemistry of mechanically interlocked molecules (MIMs) such as catenane and rotaxane is full of new opportunities for the presence of a mechanical bond, and the efficient synthesis of these molecules is therefore of fundamental importance in realizing their unique properties and functions. While many different types of preorganizing interactions and covalent bond formation strategies have been exploited in MIMs synthesis, the use of cucurbit[6]uril (CB[6]) in simultaneously templating macrocycle interlocking and catalyzing the covalent formation of the interlocked components is particularly advantageous in accessing high-order catenanes and rotaxanes. In this review, catenane and rotaxane obtained from CB[6]-catalyzed azide-alkyne cycloaddition will be discussed, with special emphasis on the synthetic strategies employed for obtaining complex [n]rotaxanes and [n]catenanes, as well as their properties and functions.
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Affiliation(s)
- Yuen Cheong Tse
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Ho Yu Au-Yeung
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
- State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
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