1
|
Assaf KI, Faraj AN, Abu-Nameh ESM, Alnajjar MA. Supramolecular complexation of phenylephrine by cucurbit[7]uril in aqueous solution. RSC Adv 2024; 14:13286-13290. [PMID: 38655473 PMCID: PMC11037392 DOI: 10.1039/d4ra01910e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 04/17/2024] [Indexed: 04/26/2024] Open
Abstract
Cucurbiturils (CBn) are known to establish stable host-guest complexes with a variety of drug molecules. Herein, the supramolecular complexation between cucurbit[7]uril (CB7) and phenylephrine hydrochloride is reported in aqueous solution. Phenylephrine forms inclusion complex with CB7 with high binding affinity (Kaffinity = 4.0 × 106 M-1), which allows for the development of a fluorescence-based sensing assay applying the dye displacement strategy. The structure of the host-guest inclusion complex is investigated by 1H NMR spectroscopy, in which complexation-induced chemical shifts indicate the immersion of the aromatic ring inside the hydrophobic cavity of CB7. Density functional theory (DFT) calculations support the 1H NMR results, and reveal that the complex is stabilized through intermolecular interactions between the polar groups on the phenylephrine and the carbonyl rims of CB7, as well as the hydrophobic effect. Moreover, preferential binding of phenylephrine in its protonated over the neutral form results in a complexation-induced pKa shift.
Collapse
Affiliation(s)
- Khaleel I Assaf
- Department of Chemistry, Al-Balqa Applied University Al-Salt 19117 Jordan
| | - Ayah N Faraj
- Department of Chemistry, Al-Balqa Applied University Al-Salt 19117 Jordan
| | - Eyad S M Abu-Nameh
- Department of Chemistry, Al-Balqa Applied University Al-Salt 19117 Jordan
| | - Mohammad A Alnajjar
- Department of Biology and Chemistry, Center for Cellular Nanoanalytics, Universität Osnabrück 49069 Osnabrück Germany
| |
Collapse
|
2
|
Li Q, Yu Z, Redshaw C, Xiao X, Tao Z. Double-cavity cucurbiturils: synthesis, structures, properties, and applications. Chem Soc Rev 2024; 53:3536-3560. [PMID: 38414424 DOI: 10.1039/d3cs00961k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Double-cavity Q[n]s are relatively new members of the Q[n] family and have garnered significant interest due to their distinctive structures and novel properties. While they incorporate n glycoluril units, akin to their single-cavity counterparts, their geometry can best be described as resembling a figure-of-eight or a handcuff, distinguishing them from single-cavity Q[n]s. Despite retaining the core molecular recognition traits of single-cavity Q[n]s, these double-cavity variants introduce fascinating new attributes rooted in their distinct configurations. This overview delves into the synthesis, structural attributes, properties, and intriguing applications of double-cavity Q[n]s. Some of the applications explored include their role in supramolecular polymers, molecular machinery, supra-amphiphiles, sensors, artificial light-harvesting systems, and adsorptive separation materials. Upon concluding this review, we discuss potential challenges and avenues for future development and offer valuable insights for other scholars working in this area with the aim of stimulating further exploration and interest.
Collapse
Affiliation(s)
- Qing Li
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, P. R. China.
| | - Zhengwei Yu
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, P. R. China.
| | - Carl Redshaw
- Chemistry, School of Natural Sciences, University of Hull, Hull HU6 7RX, UK
| | - Xin Xiao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, P. R. China.
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, P. R. China.
| |
Collapse
|
3
|
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.
Collapse
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
| |
Collapse
|
4
|
Kundu S, Higashi K, Takamizawa M, Ueda K, Limwikrant W, Yamamoto K, Moribe K. Controlled Sublimation Rate of Guest Drug from Polymorphic Forms of a Cyclodextrin-Based Polypseudorotaxane Complex and Its Correlation with Molecular Dynamics as Probed by Solid-State NMR. Mol Pharm 2024; 21:1501-1514. [PMID: 38363209 DOI: 10.1021/acs.molpharmaceut.3c01148] [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: 02/17/2024]
Abstract
Encapsulation of active pharmaceutical ingredients (APIs) in confined spaces has been extensively explored as it dramatically alters the molecular dynamics and physical properties of the API. Herein, we explored the effect of encapsulation on the molecular dynamics and physical stability of a guest drug, salicylic acid (SA), confined in the intermolecular spaces of γ-cyclodextrin (γ-CD) and poly(ethylene glycol) (PEG)-based polypseudorotaxane (PPRX) structure. The sublimation tendency of SA encapsulated in three polymorphic forms of the γ-CD/PEG-based PPRX complex, monoclinic columnar (MC), hexagonal columnar (HC), and tetragonal columnar (TC), was investigated. The SA sublimation rate was decreased by 3.0-6.6-fold and varied in the order of MC form > HC form > TC form complex. The 13C and 1H magic-angle spinning (MAS) solid-state nuclear magnetic resonance (NMR) spectra and 13C spin-lattice relaxation time (T1) indicated that the encapsulated SA molecules existed as the monomeric form, and its molecular mobility increased in the order of MC form > HC form > TC form complex. In the complexes, a rapid chemical exchange between two dynamic states of SA (free and bound) was suggested, with varying adsorption/desorption rates accounting for its distinct molecular mobility. This adsorption/desorption process was influenced by proton exchange at the interaction site and interaction strength of SA in the complexes, as evidenced by 1H MAS spectra and temperature dependency of the 13C carbonyl chemical shift. A positive correlation between the molecular mobility of SA and its sublimation rate was established. Moreover, the molecular mobility of γ-CD and PEG in the complexes coincided with that of SA, which can be explained by fast guest-driven dynamics. This is the first report on the stability improvement of an API through complexation in polymorphic supramolecular host structures. The relationship between the molecular dynamics and physical properties of encapsulated API will aid in the rational design of drug delivery systems.
Collapse
Affiliation(s)
- Sudeshna Kundu
- Graduate School of Pharmaceutical Sciences, Chiba University, Inohana 1-8-1, Chuo-ku, Chiba 260-8675, Japan
| | - Kenjirou Higashi
- Graduate School of Pharmaceutical Sciences, Chiba University, Inohana 1-8-1, Chuo-ku, Chiba 260-8675, Japan
| | - Makoto Takamizawa
- Graduate School of Pharmaceutical Sciences, Chiba University, Inohana 1-8-1, Chuo-ku, Chiba 260-8675, Japan
| | - Keisuke Ueda
- Graduate School of Pharmaceutical Sciences, Chiba University, Inohana 1-8-1, Chuo-ku, Chiba 260-8675, Japan
| | - Waree Limwikrant
- Graduate School of Pharmaceutical Sciences, Chiba University, Inohana 1-8-1, Chuo-ku, Chiba 260-8675, Japan
- Department of Manufacturing Pharmacy, Faculty of Pharmacy, Mahidol University, 447 Sri Ayudhya Road, Ratchatewi, Bangkok 10400, Thailand
| | - Keiji Yamamoto
- Graduate School of Pharmaceutical Sciences, Chiba University, Inohana 1-8-1, Chuo-ku, Chiba 260-8675, Japan
| | - Kunikazu Moribe
- Graduate School of Pharmaceutical Sciences, Chiba University, Inohana 1-8-1, Chuo-ku, Chiba 260-8675, Japan
| |
Collapse
|
5
|
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.
Collapse
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
| |
Collapse
|
6
|
Munnangi SR, Youssef AAA, Narala N, Lakkala P, Narala S, Vemula SK, Repka M. Drug complexes: Perspective from Academic Research and Pharmaceutical Market. Pharm Res 2023; 40:1519-1540. [PMID: 37138135 PMCID: PMC10156076 DOI: 10.1007/s11095-023-03517-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/07/2023] [Indexed: 05/05/2023]
Abstract
Despite numerous research efforts, drug delivery through the oral route remains a major challenge to formulation scientists. The oral delivery of drugs poses a significant challenge because more than 40% of new chemical entities are practically insoluble in water. Low aqueous solubility is the main problem encountered during the formulation development of new actives and for generic development. A complexation approach has been widely investigated to address this issue, which subsequently improves the bioavailability of these drugs. This review discusses the various types of complexes such as metal complex (drug-metal ion), organic molecules (drug-caffeine or drug-hydrophilic polymer), inclusion complex (drug-cyclodextrin), and pharmacosomes (drug-phospholipids) that improves the aqueous solubility, dissolution, and permeability of the drug along with the numerous case studies reported in the literature. Besides improving solubility, drug-complexation provides versatile functions like improving stability, reducing the toxicity of drugs, increasing or decreasing the dissolution rate, and enhancing bioavailability and biodistribution. Apart, various methods to predict the stoichiometric ratio of reactants and the stability of the developed complex are discussed.
Collapse
Affiliation(s)
- Siva Ram Munnangi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, MS, 38677, USA
- Pii Center for Pharmaceutical Technology, The University of Mississippi, University, Mississippi, MS, 38677, USA
| | - Ahmed Adel Ali Youssef
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, MS, 38677, USA
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Nagarjuna Narala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, MS, 38677, USA
| | - Preethi Lakkala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, MS, 38677, USA
| | - Sagar Narala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, MS, 38677, USA
- Pii Center for Pharmaceutical Technology, The University of Mississippi, University, Mississippi, MS, 38677, USA
| | - Sateesh Kumar Vemula
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, MS, 38677, USA
| | - Michael Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Mississippi, MS, 38677, USA.
- Pii Center for Pharmaceutical Technology, The University of Mississippi, University, Mississippi, MS, 38677, USA.
| |
Collapse
|
7
|
Sensing cyclosarin (a chemical warfare agent) by Cucurbit[n]urils: A DFT/TD-DFT study. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
8
|
Assaf KI. Host-guest complexation between cucurbit[7]uril and doxepin induced supramolecular assembly. Org Biomol Chem 2022; 20:5796-5802. [PMID: 35833381 DOI: 10.1039/d2ob01065h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The supramolecular complexation of doxepin (DOX) with cucurbit[7]uril (CB7) was investigated in aqueous solution. The results indicated the formation of a host-guest complex, as verified by complexation-induced chemical shifts in the NMR experiments and supported by quantum-chemical calculations, in which the alkylammonium tail of DOX was found to be encapsulated inside the CB7 cavity, while the tricyclic moiety remained exposed to bulk water. Isothermal titration calorimetry and dye-displacement experiments provided a moderate binding affinity (104 M-1). Interestingly, the partial encapsulation of DOX by the CB7 macrocycle led to the development of a supramolecular assembly at a low millimolar concentration, as verified by NMR and dynamic light scattering (DLS) measurements, which showed homogeneous size distributions with an average diameter of 1700 nm.
Collapse
Affiliation(s)
- Khaleel I Assaf
- Department of Chemistry, Faculty of Science, Al-Balqa Applied University, Al-Salt 19117, Jordan.
| |
Collapse
|
9
|
Host–guest binding selectivity of ethylated pillar[5]arene (EtP5A) towards octane, 1,7-octadiene, and 1,7-octadiyne: a computational investigation. Struct Chem 2022. [DOI: 10.1007/s11224-022-02002-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
10
|
Nastatos XL, Mansour E, Gu A, Wheate NJ. Aqueous compatibility of 15 pharmaceutical antimicrobial preservatives with the macrocycles cucurbit[7]uril and para-sulfonatocalix[4]arene. Supramol Chem 2022. [DOI: 10.1080/10610278.2022.2073823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Xenia L. Nastatos
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Elissar Mansour
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Alice Gu
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Nial J. Wheate
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| |
Collapse
|
11
|
Saji VS. Recent Updates on Supramolecular-Based Drug Delivery - Macrocycles and Supramolecular Gels. CHEM REC 2022; 22:e202200053. [PMID: 35510981 DOI: 10.1002/tcr.202200053] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/05/2022] [Indexed: 11/09/2022]
Abstract
Supramolecules-based drug delivery has attracted significant recent research attention as it could enhance drug solubility, retention time, targeting, and stimuli responsiveness. Among the different supramolecules and assemblies, the macrocycles and the supramolecular hydrogels are the two important categories investigated to a greater extent. Here, we provide the most recent advancements in these categories. Under macrocycles, reports on drug delivery by cyclodextrins, cucurbiturils, calixarenes/pillararenes, crown ethers and porphyrins are detailed. The second category discusses the supramolecular hydrogels of macrocycles/polymers and low molecular weight gelators. The updated information provided could be helpful to advance R & D in this vital area.
Collapse
Affiliation(s)
- Viswanathan S Saji
- Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| |
Collapse
|
12
|
Rakrai W, Tabtimsai C, Kaewtong C, Wanno B. Theoretical investigation of the complexation, structural, and electronic properties of complexes between oseltamivir drug and cucurbit[n = 6–9]urils. Struct Chem 2022. [DOI: 10.1007/s11224-022-01888-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
13
|
Deng CL, Cheng M, Zavalij PY, Isaacs L. Thermodynamics of Pillararene•Guest Complexation: Blinded Dataset for the SAMPL9 Challenge. NEW J CHEM 2022; 46:995-1002. [PMID: 35250257 PMCID: PMC8896905 DOI: 10.1039/d1nj05209h] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
We report an investigation of the complexation between a water soluble pillararene host (WP6) and a panel of hydrophobic cationic guests (G1 - G20) by a combination of 1H NMR spectroscopy and isothermal titration calorimetry in phosphate buffered saline. We find that WP6 forms 1:1 complexes with Ka values in the 104 - 109 M-1 range driven by favorable enthalpic contributions. This thermodynamic dataset serves as blinded data for the SAMPL9 challenge.
Collapse
Affiliation(s)
- Chun-Lin Deng
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
| | - Ming Cheng
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
| | - Peter Y. Zavalij
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
| | - Lyle Isaacs
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
| |
Collapse
|
14
|
Ioannou E, Labrou NE. Rational Design of Self-Assembling Supramolecular Protein Nanostructures Utilizing the Cucurbit[8]Uril Macrocyclic Host. Methods Mol Biol 2022; 2487:177-187. [PMID: 35687236 DOI: 10.1007/978-1-0716-2269-8_11] [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: 06/15/2023]
Abstract
Self-assembly is a phenomenon that governs molecular structural organization in nature, therefore raising research interest for the fabrication of novel nanomaterials with diverse applications in biocatalysis, biomedicine, material templating, and biosensor development. In this chapter we provide protocols for the development of supramolecular protein complexes based on host-guest interactions in the presence of the macrocyclic host, cucurbit[8]uril (CB[8]). CB[8] is reported to exhibit high binding affinity towards the tripeptide Phe-Gly-Gly (FGG), therefore it can be utilized as a selective adhesive of protein molecules, after fusion of FGG to an accessible protein surface.
Collapse
Affiliation(s)
- Elisavet Ioannou
- Laboratory of Enzyme Technology, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, Athens, Greece
| | - Nikolaos E Labrou
- Laboratory of Enzyme Technology, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, Athens, Greece.
| |
Collapse
|
15
|
Gorges J, Grimme S, Hansen A. Reliable prediction of association (free) energies of supramolecular complexes with heavy main group elements – the HS13L benchmark set. Phys Chem Chem Phys 2022; 24:28831-28843. [DOI: 10.1039/d2cp04049b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
We introduce a set of 13 supramolecular complexes featuring diverse non-covalent interactions with heavy main group elements (Zn, As, Se, Te, Br, I), high charges (−2 up to +4), and large systems with up to 266 atoms (HS13L).
Collapse
Affiliation(s)
- Johannes Gorges
- Mulliken Center for Theoretical Chemistry, Clausius-Institute for Physical and Theoretical Chemistry, University of Bonn, Beringstr. 4, 53115 Bonn, Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry, Clausius-Institute for Physical and Theoretical Chemistry, University of Bonn, Beringstr. 4, 53115 Bonn, Germany
| | - Andreas Hansen
- Mulliken Center for Theoretical Chemistry, Clausius-Institute for Physical and Theoretical Chemistry, University of Bonn, Beringstr. 4, 53115 Bonn, Germany
| |
Collapse
|
16
|
Dračínský M, Hurtado CS, Masson E, Kaleta J. Stuffed pumpkins: mechanochemical synthesis of host-guest complexes with cucurbit[7]uril. Chem Commun (Camb) 2021; 57:2132-2135. [PMID: 33605291 DOI: 10.1039/d1cc00240f] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Solvent-free mechanochemical synthesis (ball-milling) was used to prepare inclusion complexes with cucurbit[7]uril and four model guest molecules (adamantane, adamantyl-1-amine hydrochloride, toluidine hydrochloride, and p-phenylenediamine dihydrochloride). Successful formation of individual inclusions was independently confirmed by one- and two-dimensional solid-state NMR techniques and differential scanning calorimetry. Mechanochemical synthesis represents an alternative path towards new types of cucurbit[n]uril/guest inclusion complexes that are not accessible due to limited solubility of the individual components.
Collapse
Affiliation(s)
- Martin Dračínský
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 160 00 Prague 6, Czech Republic.
| | - Carina Santos Hurtado
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 160 00 Prague 6, 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.
| |
Collapse
|
17
|
Murkli S, Klemm J, Brockett AT, Shuster M, Briken V, Roesch MR, Isaacs L. In Vitro and In Vivo Sequestration of Phencyclidine by Me 4 Cucurbit[8]uril*. Chemistry 2021; 27:3098-3105. [PMID: 33206421 PMCID: PMC7902406 DOI: 10.1002/chem.202004380] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Indexed: 12/19/2022]
Abstract
We report investigations of the use of cucurbit[8]uril (CB[8]) macrocycles as an antidote to counteract the in vivo biological effects of phencyclidine. We investigate the binding of CB[8] and its derivative Me4 CB[8] toward ten drugs of abuse (3-9, 12-14) by a combination of 1 H NMR spectroscopy and isothermal titration calorimetry in phosphate buffered water. We find that the cavity of CB[8] and Me4 CB[8] are able to encapsulate the 1-amino-1-aryl-cyclohexane ring system of phencyclidine (PCP) and ketamine as well as the morphinan skeleton of morphine and hydromorphone with Kd values ≤50 nm. In vitro cytotoxicity (MTS metabolic and adenylate kinase cell death assays in HEK293 and HEPG2 cells) and in vivo maximum tolerated dose studies (Swiss Webster mice) which were performed for Me4 CB[8] indicated good tolerability. The tightest host⋅guest pair (Me4 CB[8]⋅PCP; Kd =2 nm) was advanced to in vivo efficacy studies. The results of open field tests demonstrate that pretreatment of mice with Me4 CB[8] prevents subsequent hyperlocomotion induction by PCP and also that treatment of animals previously dosed with PCP with Me4 CB[8] significantly reduces the locomotion levels.
Collapse
Affiliation(s)
- Steven Murkli
- Mr. Steven Murkli, Mr. Jared Klemm, Mr. David King, Dr. Peter Y. Zavalij, Prof. Dr. Lyle Isaacs, Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, United States
| | - Jared Klemm
- Mr. Steven Murkli, Mr. Jared Klemm, Mr. David King, Dr. Peter Y. Zavalij, Prof. Dr. Lyle Isaacs, Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, United States
| | - Adam T. Brockett
- Dr. Adam T. Brockett, Prof. Dr. Matthew R. Roesch, Department of Psychology, University of Maryland, College Park, MD 20742, United States
- Dr. Adam T. Brockett, Prof. Dr. Matthew R. Roesch, Program in Neuroscience and Cognitive Science (NACS), University of Maryland, College Park, MD 20742, United States
| | - Michael Shuster
- Mr. Michael Shuster, Prof. Dr. Volker Briken, Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, United States
| | - Volker Briken
- Mr. Michael Shuster, Prof. Dr. Volker Briken, Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, United States
| | - Matthew R. Roesch
- Dr. Adam T. Brockett, Prof. Dr. Matthew R. Roesch, Department of Psychology, University of Maryland, College Park, MD 20742, United States
- Dr. Adam T. Brockett, Prof. Dr. Matthew R. Roesch, Program in Neuroscience and Cognitive Science (NACS), University of Maryland, College Park, MD 20742, United States
| | - Lyle Isaacs
- Mr. Steven Murkli, Mr. Jared Klemm, Mr. David King, Dr. Peter Y. Zavalij, Prof. Dr. Lyle Isaacs, Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, United States
| |
Collapse
|
18
|
|
19
|
Buczkowski A, Gorzkiewicz M, Stepniak A, Malinowska-Michalak M, Tokarz P, Urbaniak P, Ionov M, Klajnert-Maculewicz B, Palecz B. Physicochemical and in vitro cytotoxicity studies of inclusion complex between gemcitabine and cucurbit[7]uril host. Bioorg Chem 2020; 99:103843. [PMID: 32305692 DOI: 10.1016/j.bioorg.2020.103843] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/05/2020] [Accepted: 04/08/2020] [Indexed: 12/21/2022]
Abstract
Gemcitabine, a cytostatic drug from the pyrimidine antimetabolite group, exhibits limited storage stability and numerous side effects during therapy. One of the strategies to improve the effectiveness of therapy with such drugs is the use of supramolecular nano-containers, including dendrimers and macrocyclic compounds. The ability of gemcitabine to attach a proton in an aqueous environment necessitates the search for a carrier that is well-tolerated by an organism and capable of supramolecular binding of a ligand (drug) in a cationic form. In the current study a promising strategy was tested for using cucurbituril Q7 to bind gemcitabine cations for its efficient intracellular delivery on three selected cancer cell lines (MOLT4, THP-1 and U937). Based on physicochemical studies (equilibrium dialysis, UV and 1H NMR titrations, DOSY 1H NMR measurements, DSC calorimetry) and cytotoxicity tests on cells with a free and blocked hENT1 transporter, the conclusion was drawn about the binding and penetration of the cucurbituril-drug complex into cancer cells.
Collapse
Affiliation(s)
- Adam Buczkowski
- Unit of Biophysical Chemistry, Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, 165 Pomorska St., 90-236 Lodz, Poland.
| | - Michał Gorzkiewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland
| | - Artur Stepniak
- Unit of Biophysical Chemistry, Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, 165 Pomorska St., 90-236 Lodz, Poland
| | - Małgorzata Malinowska-Michalak
- Unit of Biophysical Chemistry, Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, 165 Pomorska St., 90-236 Lodz, Poland
| | - Paweł Tokarz
- Molecular Spectroscopy Laboratory, Department of Organic Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, Lodz 91-403, Poland
| | - Paweł Urbaniak
- Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, University of Lodz, 12 Tamka St., 91-403 Lodz, Poland
| | - Maksim Ionov
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland
| | - Bartlomiej Palecz
- Unit of Biophysical Chemistry, Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, 165 Pomorska St., 90-236 Lodz, Poland
| |
Collapse
|
20
|
Danylyuk O, Worzakowska M, Osypiuk-Tomasik J, Sashuk V, Kedra-Krolik K. Solution-mediated and single-crystal to single-crystal transformations of cucurbit[6]uril host–guest complexes with dopamine. CrystEngComm 2020. [DOI: 10.1039/c9ce01743g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The structural transformations of cucurbit[6]uril–dopamine complexes are associated with loss of water molecules either from the macrocyclic cavity or from the crystal lattice.
Collapse
Affiliation(s)
- Oksana Danylyuk
- Institute of Physical Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Marta Worzakowska
- Department of Polymer Chemistry
- Institute of Chemical Sciences
- Faculty of Chemistry
- Maria Curie-Sklodowska University in Lublin
- 20-614 Lublin
| | | | - Volodymyr Sashuk
- Institute of Physical Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | | |
Collapse
|
21
|
Wang P, Liu W, Liu S, Yang R, Pu Y, Zhang W, Wang X, Liu X, Ren Y, Chi B. pH-responsive nanomicelles of poly(ethylene glycol)-poly(ε-caprolactone)-poly(L-histidine) for targeted drug delivery. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 31:277-292. [PMID: 31665964 DOI: 10.1080/09205063.2019.1687132] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Here, a novel pH-responsive block copolymer, poly (ethylene glycol)-poly(ε-caprolactone)-poly(L-histidine) (PEG-PCL-PHis), was synthesized and designed for anti-cancer drug delivery with excellent biocompatible, biodegradable, and strong drug loading efficiency. 1H-NMR, IF-IR, and GPC were used to characterize the structure of the PEG-PCL-PHis copolymer. In addition, the morphology, particle size, Zeta potential, and critical micelle concentration (CMC) of different degree of polymerization were determined by transmission electron microscopy (TEM), dynamic light scattering granulometer (DLS), and fluorescence spectrometer, respectively. The strong affinity between the core of micelles and hydrophobic drug was manifested with 15.09% drug loading content and 84.65% entrapment efficiency. In vitro release of DOX from the block copolymer micelle demonstrated, the PEG-PCL-PHis copolymer micelle has stable and durable drug releasing ability accompanied with pH-sensitivity. From the mechanism of cellular uptake the micelles, the pathway of drug release was captured by confocal laser scanning microscope. These experiments demonstrated the safe delivery for anticancer medicine through this novel copolymer. In conclusion, the PEG-PCL-PHis copolymer micelle has great potential to become a safe drug carrier for cancer chemotherapy.
Collapse
Affiliation(s)
- Penghui Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Wei Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Shuai Liu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Rong Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Yajie Pu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Wenjie Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Xiaoxue Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Xin Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Yanhan Ren
- Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA
| | - Bo Chi
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China.,Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing, China
| |
Collapse
|
22
|
Mehranfar A, Izadyar M, Shamkhali AN. Theoretical study on alkaloid encapsulating via monohydroxy-cucurbit[n]uril (n = 8,10)/graphene oxide composite. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111085] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
23
|
Martinez Morales M, Zalar M, Sonzini S, Golovanov AP, van der Walle CF, Derrick JP. Interaction of a Macrocycle with an Aggregation-Prone Region of a Monoclonal Antibody. Mol Pharm 2019; 16:3100-3108. [DOI: 10.1021/acs.molpharmaceut.9b00338] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marcello Martinez Morales
- School of Biological Sciences, Manchester Academic Health Science Centre, The University of Manchester, Manchester M13 9PL, U.K
| | - Matja Zalar
- Manchester Institute of Biotechnology and School of Chemistry, The University of Manchester, Manchester M1 7DN, U.K
| | | | - Alexander P. Golovanov
- Manchester Institute of Biotechnology and School of Chemistry, The University of Manchester, Manchester M1 7DN, U.K
| | | | - Jeremy P. Derrick
- School of Biological Sciences, Manchester Academic Health Science Centre, The University of Manchester, Manchester M13 9PL, U.K
| |
Collapse
|
24
|
Buczkowski A, Palecz B, Schroeder G. Stoichiometry and thermodynamics of gemcitabine and cucurbituril Q7 supramolecular complexes in high acidic aqueous solution. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.10.077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
25
|
Li CR, Feng HM, Zhao JY, Li Z, Bian B, Meng TH, Hu XY, Wang H, Xiao X. Supramolecular Interaction Between Cucurbit[8]uril and the Quinolone Antibiotic Ofloxacin. Aust J Chem 2019. [DOI: 10.1071/ch19341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The host–guest inclusion complex of cucurbit[8]uril (Q[8]) and ofloxacin (OFLX) has been prepared and characterised by means of 1H NMR spectroscopy, MALDI-TOF mass spectrometry, isothermal titration calorimetry (ITC), fluorescence spectroscopy, and UV-vis absorption spectroscopy. The findings demonstrated that a host–guest inclusion complex could be formed through an encapsulation of the methylmorpholine and piperazine rings in OFLX. ITC results indicated that the formation of this inclusion complex (1:1 molar ratio) was primarily dependent on enthalpy and entropy changes. In addition, the release of OFLX from the inclusion complex was increased under acidic conditions.
Collapse
|
26
|
Miskolczy Z, Megyesi M, Toke O, Biczók L. Change of the kinetics of inclusion in cucurbit[7]uril upon hydrogenation and methylation of palmatine. Phys Chem Chem Phys 2019; 21:4912-4919. [DOI: 10.1039/c8cp07231k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The negative activation entropy of tetrahydropalmatine inclusion makes the entry into cucurbit[7]uril significantly slower than in the case of dehydrocorydaline.
Collapse
Affiliation(s)
- Zsombor Miskolczy
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- 1519 Budapest
- Hungary
| | - Mónika Megyesi
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- 1519 Budapest
- Hungary
| | - Orsolya Toke
- Laboratory for NMR Spectroscopy
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- 1519 Budapest
- Hungary
| | - László Biczók
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- 1519 Budapest
- Hungary
| |
Collapse
|
27
|
Hickenlooper SM, Harper CC, Pope BL, Mortensen DN, Dearden DV. Barriers for Extrusion of a Guest from the Interior Binding Cavity of a Host: Gas Phase Experimental and Computational Results for Ion-Capped Decamethylcucurbit[5]uril Complexes. J Phys Chem A 2018; 122:9224-9232. [PMID: 30407019 DOI: 10.1021/acs.jpca.8b08031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Factors affecting the extrusion of guests from metal ion-capped decamethylcucurbit[5]uril (mc5) molecular container complexes are investigated using both collision-induced dissociation techniques and molecular mechanics simulations. For guests without polar bonds, the extrusion barrier increases with increasing guest volume. This is likely because escape of larger guests requires more displacement of the metal ion caps and, thus, more disruption of the ion-dipole interactions between the ion caps and the electronegative rim oxygens of mc5. However, guests larger than the optimum size for encapsulation displace the ion caps prior to collision-induced dissociation, resulting in less stable complexes and lower dissociation thresholds. The extrusion barriers obtained for guests with polar bonds are smaller than those obtained for similarly sized guests without polar bonds. This is likely because the partial charges on the guest allow electrostatic interactions with the ion cap and rim oxygens of mc5 during extrusion, thus stabilizing the extrusion transition state and reducing the extrusion barrier. Results from this study demonstrate simple principles to consider for designing host-guest complexes with specific guest-loss behaviors. Similar trends are observed between the experimental and computational results, demonstrating that molecular mechanics simulations can be used to approximate the relative stability of mc5 molecular container complexes and likely those of other similar complexes.
Collapse
Affiliation(s)
- Samuel M Hickenlooper
- Department of Chemistry and Biochemistry , Brigham Young University , Provo , Utah 84602-5700 , United States
| | - Conner C Harper
- Department of Chemistry and Biochemistry , Brigham Young University , Provo , Utah 84602-5700 , United States
| | - Brigham L Pope
- Department of Chemistry and Biochemistry , Brigham Young University , Provo , Utah 84602-5700 , United States
| | - Daniel N Mortensen
- Department of Chemistry and Biochemistry , Brigham Young University , Provo , Utah 84602-5700 , United States
| | - David V Dearden
- Department of Chemistry and Biochemistry , Brigham Young University , Provo , Utah 84602-5700 , United States
| |
Collapse
|
28
|
Chandra F, Kumar P, Koner AL. Encapsulation and modulation of protolytic equilibrium of β-carboline-based norharmane drug by cucurbit[7]uril and micellar environments for enhanced cellular uptake. Colloids Surf B Biointerfaces 2018; 171:530-537. [PMID: 30096474 DOI: 10.1016/j.colsurfb.2018.07.061] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/18/2018] [Accepted: 07/26/2018] [Indexed: 02/08/2023]
Abstract
The effect of supramolecular nanocavity on photophysical and acid-dissociation properties of Norharmane (NHM), a physiologically important, anxiety control and memory-enhancing β-carboline-based drug, has been investigated using steady-state absorption and fluorescence spectroscopy. Self-assembled organization derived from surfactants and rigid water-soluble macrocyclic host Cucurbit[7]uril (CB7) have been selected for this investigation. The confined-space offered by the supramolecular assemblies modulates the pKa value of NHM (up to 3 units) as it can exist in two protolytic forms at near neutral pH. Therefore, the pH-dependent binding properties, modulation of pKa value and its consequences on the photophysical, chemical and solubility properties are investigated in detail. This investigation shows a large shift in the protolytic equilibrium which in turn causes ca. 15 times solubility-enhancement at near neutral pH. Moreover, the effect of enhanced solubility has been further investigated by the augmentation in the cellular uptake of NHM entrapped inside CB7. Thus, the modulation of the acid-base properties and solubility of β-carboline-based drugs will have immense potential for their formulation, cellular uptake and bioavailability.
Collapse
Affiliation(s)
- Falguni Chandra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462 066, Madhya Pradesh, India.
| | - Prashant Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462 066, Madhya Pradesh, India
| | - Apurba L Koner
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462 066, Madhya Pradesh, India.
| |
Collapse
|
29
|
Gruber T. Synthetic Receptors for the Recognition and Discrimination of Post-Translationally Methylated Lysines. Chembiochem 2018; 19:2324-2340. [DOI: 10.1002/cbic.201800398] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Tobias Gruber
- School of Pharmacy; University of Lincoln; Joseph Banks Laboratories; Green Lane Lincoln LN6 7DL UK
| |
Collapse
|
30
|
Interaction between carboplatin and cucurbit[7]uril studied by means of multinuclear NMR spectroscopy and DFT calculations. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.108] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
31
|
Shangguan L, Chen Q, Shi B, Huang F. Enhancing the solubility and bioactivity of anticancer drug tamoxifen by water-soluble pillar[6]arene-based host-guest complexation. Chem Commun (Camb) 2018; 53:9749-9752. [PMID: 28812763 DOI: 10.1039/c7cc05305c] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A water-soluble pillar[6]arene functions as a solubilizing agent to enhance the solubility and bioactivity of poorly water-soluble anticancer drug tamoxifen by host-guest complexation between it and tamoxifen.
Collapse
Affiliation(s)
- Liqing Shangguan
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China.
| | | | | | | |
Collapse
|
32
|
Mohanty B, Suvitha A, Venkataramanan NS. Piperine Encapsulation within Cucurbit[n]uril (n=6,7): A Combined Experimental and Density Functional Study. ChemistrySelect 2018. [DOI: 10.1002/slct.201702846] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Biswajit Mohanty
- School of Chemical and Biotechnology (SCBT); SASTRA Deemed University; Thanjavur India
| | - Ambigapathy Suvitha
- School of Chemical and Biotechnology (SCBT); SASTRA Deemed University; Thanjavur India
| | - Natarajan Sathiyamoorthy Venkataramanan
- School of Chemical and Biotechnology (SCBT); SASTRA Deemed University; Thanjavur India
- Center for Computational Chemistry and Materials Science (CCCMS); SASTRA Deemed University; Thanjavur India
| |
Collapse
|
33
|
Prakash R, Usha G, Sivaranjana P, Karpagalakshmi K, Piramuthu L, Selvapalam N. Graphene oxide based fluorescence sensor for cucurbit[7]uril. NEW J CHEM 2018. [DOI: 10.1039/c8nj02686f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Rhodamine B (RhB) anchored reduced graphene oxide (RhBGO) offers a very sensitive and selective sensing potential for cucurbit[7]uril (CB[7]).
Collapse
Affiliation(s)
- Ramesh Prakash
- Center for Supramolecular Chemistry and Department of Chemistry
- International Research Center
- Kalasalingam Academy of Research and Education (Kalasalingam University)
- Krishnankoil
- India
| | - Govindaraj Usha
- Center for Supramolecular Chemistry and Department of Chemistry
- International Research Center
- Kalasalingam Academy of Research and Education (Kalasalingam University)
- Krishnankoil
- India
| | - Paramasivan Sivaranjana
- Department of Chemistry
- Kalasalingam Academy of Research and Education (Kalasalingam University)
- India
| | - Karuppasamy Karpagalakshmi
- Center for Supramolecular Chemistry and Department of Chemistry
- International Research Center
- Kalasalingam Academy of Research and Education (Kalasalingam University)
- Krishnankoil
- India
| | - Lakshminarayanan Piramuthu
- Center for Supramolecular Chemistry and Department of Chemistry
- International Research Center
- Kalasalingam Academy of Research and Education (Kalasalingam University)
- Krishnankoil
- India
| | - Narayanan Selvapalam
- Center for Supramolecular Chemistry and Department of Chemistry
- International Research Center
- Kalasalingam Academy of Research and Education (Kalasalingam University)
- Krishnankoil
- India
| |
Collapse
|
34
|
Ahmed SA, Seth D. Investigation of interaction of an alkaloid harmaline with cucurbit[7]uril: A spectroscopic and calorimetric study. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2017.12.056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
35
|
Venkataramanan NS, Suvitha A, Vijayaraghavan A, Thamotharan S. Investigation of inclusion complexation of acetaminophen with pillar [5]arene: UV–Vis, NMR and quantum chemical study. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.06.095] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
36
|
Loftsson T. Drug solubilization by complexation. Int J Pharm 2017; 531:276-280. [PMID: 28842309 DOI: 10.1016/j.ijpharm.2017.08.087] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 08/17/2017] [Accepted: 08/17/2017] [Indexed: 11/17/2022]
Abstract
Drugs must possess some solubility in water to be therapeutically effective after oral or topical administration to the eye, and drugs must be soluble to be formulated as aqueous solutions for, for example, parenteral delivery. A variety of methods can be applied to enhance aqueous solubility of poorly soluble drugs one of which is the usage of solubilizing complexing agents. There are numerous types of complexes and some are more water-soluble than others. Coordination complexes consist of drugs that act as complexing agents (i.e. ligands) and metal ions (i.e. substrates). Examples of coordination complexes are some water-soluble tetracycline-metal ion complexes. Organic molecular complexes can consist of a small substrate (i.e. the drug) and a small (e.g., caffeine) or a large (e.g., polyvinylpyrrolidone) ligand. In inclusion complexes the substrate is partly or completely enveloped by the complexing agent (e.g., cyclodextrin). Finally, pharmacosomes are drug-phospholipid complexes that can not only enhance aqueous solubility of poorly soluble drugs but also their solubility in organic solvents. This is a mini-review of solubilizing complexing agents that are or can be used in pharmaceutical products.
Collapse
Affiliation(s)
- Thorsteinn Loftsson
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland.
| |
Collapse
|
37
|
Kuok KI, Li S, Wyman IW, Wang R. Cucurbit[7]uril: an emerging candidate for pharmaceutical excipients. Ann N Y Acad Sci 2017; 1398:108-119. [PMID: 28692768 DOI: 10.1111/nyas.13376] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 04/10/2017] [Accepted: 04/12/2017] [Indexed: 12/15/2022]
Abstract
Cucurbit[7]uril (CB[7]), belonging to the cucurbit[n]uril family (CB[n], n = 5-8, 10, or 13-15), may form host-guest complexes with a variety of small molecules of biomedical interest. The physical and chemical properties of the complexed drugs are often improved as a result of this complexation, suggesting the potential application of CB[7] as a pharmaceutical excipient. This review has summarized the most recent research progress reported between 2011 and early 2017 regarding the biocompatibility of CB[7] and the influence of CB[7] on the stability, solubility, biouptake, and biological activities (including therapeutic efficacies and toxicities) of guest drug molecules. Through this systemic summary and analysis, we intend to stimulate further research efforts in this area and promote the use of CB[7] as an emerging pharmaceutical excipient to improve various properties of drug molecules (or active pharmaceutical ingredients).
Collapse
Affiliation(s)
- Kit Ieng Kuok
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR, China
| | - Shengke Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR, China
| | - Ian W Wyman
- Department of Chemistry, Queen's University, Kingston, Ontario, Canada
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR, China
| |
Collapse
|
38
|
Fong CW. Cucurbiturils as potential free radical chemoradiosensitizers for enhanced cisplatin treatment of cancers: a quantum mechanical study. J INCL PHENOM MACRO 2017. [DOI: 10.1007/s10847-017-0698-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
39
|
Li S, Yang X, Niu Y, Andrew GL, Bardelang D, Chen X, Wang R. Alleviation of Hepatotoxicity of Arecoline (Areca Alkaloid) by a Synthetic Receptor. ChemistrySelect 2017. [DOI: 10.1002/slct.201700333] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Shengke Li
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Avenida da Universidade, Taipa Macau China
| | - Xue Yang
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Avenida da Universidade, Taipa Macau China
| | - Yanan Niu
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Avenida da Universidade, Taipa Macau China
| | - Greg L. Andrew
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Avenida da Universidade, Taipa Macau China
| | | | - Xiuping Chen
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Avenida da Universidade, Taipa Macau China
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Avenida da Universidade, Taipa Macau China
| |
Collapse
|
40
|
Abstract
Principles rooted in supramolecular chemistry have empowered new and highly functional therapeutics and drug delivery devices. This general approach offers elegant tools rooted in molecular and materials engineered to address the many challenges faced in treating disease.
Collapse
Affiliation(s)
- Matthew J. Webber
- Department of Chemical & Biomolecular Engineering
- University of Notre Dame
- Notre Dame IN 46556
- USA
- Department of Chemistry & Biochemistry
| | - Robert Langer
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
- David H. Koch Institute for Integrative Cancer Research
| |
Collapse
|
41
|
Wheate NJ, Dickson KA, Kim RR, Nematollahi A, Macquart RB, Kayser V, Yu G, Church WB, Marsh DJ. Host-Guest Complexes of Carboxylated Pillar[n]arenes With Drugs. J Pharm Sci 2016; 105:3615-3625. [PMID: 27776769 DOI: 10.1016/j.xphs.2016.09.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Revised: 09/07/2016] [Accepted: 09/12/2016] [Indexed: 01/05/2023]
Abstract
Pillar[n]arenes are a new family of nanocapsules that have shown application in a number of areas, but because of their poor water solubility their biomedical applications are limited. Recently, a method of synthesizing water-soluble pillar[n]arenes was developed. In this study, carboxylated pillar[n]arenes (WP[n], n = 6 or 7) have been examined for their ability to form host-guest complexes with compounds relevant to drug delivery and biodiagnostic applications. Both pillar[n]arenes form host-guest complexes with memantine, chlorhexidine hydrochloride, and proflavine by 1H nuclear magnetic resonance and modeling. Binding is stabilized by hydrophobic effects within the cavities, and hydrogen bonding and electrostatic interactions at the portals. Encapsulation within WP[6] results in the complete and efficient quenching of proflavine fluorescence, giving rise to "on" and "off" states that have potential in biodiagnostics. The toxicity of the pillar[n]arenes was examined using in vitro growth assays with the OVCAR-3 and HEK293 cell lines. The pillar[n]arenes are relatively nontoxic to cells except at high doses and after prolonged continuous exposure. Overall, the results show that there could be a potentially large range of medical applications for carboxylated pillar[n]arene nanocapsules.
Collapse
Affiliation(s)
- Nial J Wheate
- Faculty of Pharmacy, University of Sydney, Sydney, NSW 2006, Australia.
| | - Kristie-Ann Dickson
- Hormones and Cancer Group, Kolling Institute of Medical Research, Royal North Shore Hospital, University of Sydney, St Leonards, NSW 2065, Australia
| | - Ryung Rae Kim
- Faculty of Pharmacy, University of Sydney, Sydney, NSW 2006, Australia
| | | | - René B Macquart
- School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia
| | - Veysel Kayser
- Faculty of Pharmacy, University of Sydney, Sydney, NSW 2006, Australia
| | - Guocan Yu
- State Key Laboratory of Chemical Engineering, Department of Chemistry, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - W Bret Church
- Faculty of Pharmacy, University of Sydney, Sydney, NSW 2006, Australia
| | - Deborah J Marsh
- Hormones and Cancer Group, Kolling Institute of Medical Research, Royal North Shore Hospital, University of Sydney, St Leonards, NSW 2065, Australia
| |
Collapse
|