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Sun Z, Barboiu M, Legrand YM, Petit E, Rotaru A. Highly Selective Artificial Cholesteryl Crown Ether K(+)-Channels. Angew Chem Int Ed Engl 2015; 54:14473-7. [PMID: 26437848 DOI: 10.1002/anie.201506430] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 08/10/2015] [Indexed: 11/08/2022]
Abstract
The bacterial KcsA channel conducts K(+) cations at high rates while excluding Na(+) cations. Herein, we report an artificial ion-channel formed by H-bonded stacks of crown-ethers, where K(+) cation conduction is highly preferred to Na(+) cations. The macrocycles aligned along the central pore surround the K(+) cations in a similar manner to the water around the hydrated cation, compensating for the energetic cost of their dehydration. In contrast, the Na(+) cation does not fit the macrocyclic binding sites, so its dehydration is not completely compensated. The present highly K(+)-selective macrocyclic channel may be regarded as a biomimetic of the KcsA channel.
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Affiliation(s)
- Zhanhu Sun
- Adaptive Supramolecular Nanosystems Group, Institut Européen des Membranes, ENSCM-UM-CNRS UMR-5635, Place E. Bataillon, CC 047, F-34095, Montpellier Cedex 5 (France)
| | - Mihail Barboiu
- Adaptive Supramolecular Nanosystems Group, Institut Européen des Membranes, ENSCM-UM-CNRS UMR-5635, Place E. Bataillon, CC 047, F-34095, Montpellier Cedex 5 (France).
| | - Yves-Marie Legrand
- Adaptive Supramolecular Nanosystems Group, Institut Européen des Membranes, ENSCM-UM-CNRS UMR-5635, Place E. Bataillon, CC 047, F-34095, Montpellier Cedex 5 (France)
| | - Eddy Petit
- Adaptive Supramolecular Nanosystems Group, Institut Européen des Membranes, ENSCM-UM-CNRS UMR-5635, Place E. Bataillon, CC 047, F-34095, Montpellier Cedex 5 (France)
| | - Alexandru Rotaru
- Petru Poni Institute of Macromolecular Chemistry of Romanian Academy, 41A Aleea Gr. Ghica Voda, Iasi (Romania)
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Sun Z, Barboiu M, Legrand YM, Petit E, Rotaru A. Highly Selective Artificial Cholesteryl Crown Ether K+-Channels. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506430] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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3
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Lin NT, Xie CY, Huang SL, Chen CH, Luh TY. Oligonorbornenes with Hammock-Like Crown Ether Pendants as Artificial Transmembrane Ion Channel. Chem Asian J 2013; 8:1436-40. [DOI: 10.1002/asia.201300222] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 03/13/2013] [Indexed: 11/08/2022]
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4
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Matile S, Vargas Jentzsch A, Montenegro J, Fin A. Recent synthetic transport systems. Chem Soc Rev 2011; 40:2453-74. [PMID: 21390363 DOI: 10.1039/c0cs00209g] [Citation(s) in RCA: 292] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
This critical review covers progress with synthetic transport systems, particularly ion channels and pores, between January 2006 and December 2009 in a comprehensive manner. This is the third part of a series launched in the year 2000, covering a rich collection of structural and functional motifs that should appeal to a broad audience of non-specialists, including to organic, biological, supramolecular and polymer chemists. Impressive breakthroughs have been achieved over the past four years in part because of a fruitful expansion toward new types of interactions, including metal-organic, π-π, aromatic electron donor-acceptor, anion-π or anion-macrodipole interactions as well as dynamic covalent bonds (169 references).
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Affiliation(s)
- Stefan Matile
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland.
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Otis F, Racine-Berthiaume C, Voyer N. How Far Can a Sodium Ion Travel within a Lipid Bilayer? J Am Chem Soc 2011; 133:6481-3. [DOI: 10.1021/ja110336s] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- François Otis
- Département de Chimie and PROTEO, Faculté des Sciences et de Génie, Université Laval, Pavillon Alexandre-Vachon, 1045 avenue de la Médecine, Québec, QC, Canada, G1V 0A6
| | - Charles Racine-Berthiaume
- Département de Chimie and PROTEO, Faculté des Sciences et de Génie, Université Laval, Pavillon Alexandre-Vachon, 1045 avenue de la Médecine, Québec, QC, Canada, G1V 0A6
| | - Normand Voyer
- Département de Chimie and PROTEO, Faculté des Sciences et de Génie, Université Laval, Pavillon Alexandre-Vachon, 1045 avenue de la Médecine, Québec, QC, Canada, G1V 0A6
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Unciti-Broceta A, Moggio L, Dhaliwal K, Pidgeon L, Finlayson K, Haslett C, Bradley M. Safe and efficient in vitro and in vivogene delivery: tripodal cationic lipids with programmed biodegradability. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm03241g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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7
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Abstract
In recent years there has been an abundance of research into the potential of helical peptides to influence cell function. These peptides have been used to achieve a variety of different outcomes from cell repair to cell death, depending upon the peptide sequence and the nature of its interactions with cell membranes and membrane proteins. In this critical review, we summarise several mechanisms by which helical peptides, acting as either transporters, inhibitors, agonists or antibiotics, can have significant effects on cell membranes and can radically affect the internal mechanisms of the cell. The various approaches to peptide design are discussed, including the role of naturally-occurring proteins in the design of these helical peptides and current breakthroughs in the use of non-natural (and therefore more stable) peptide scaffolds. Most importantly, the current successful applications of these peptides, and their potential uses in the field of medicine, are reviewed (131 references).
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Affiliation(s)
- Andrew J Beevers
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
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Tsikolia M, Hall AC, Suarez C, Nylander ZO, Wardlaw SM, Gibson ME, Valentine KL, Onyewadume LN, Ahove DA, Woodbury M, Mongare MM, Hall CD, Wang Z, Draghici B, Katritzky AR. Synthesis and characterization of a redox-active ion channel supporting cation flux in lipid bilayers. Org Biomol Chem 2009; 7:3862-70. [DOI: 10.1039/b907350g] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Dutot L, Gaucher A, Elkassimi K, Drapeau J, Wakselman M, Mazaleyrat JP, Peggion C, Formaggio F, Toniolo C. Synthesis and Characterisation of Helical β-Peptide Architectures that Contain (S)-β3-HDOPA(Crown Ether) Derivatives. Chemistry 2008; 14:3154-63. [DOI: 10.1002/chem.200701360] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wright K, Lohier JF, Wakselman M, Mazaleyrat JP, Formaggio F, Peggion C, De Zotti M, Toniolo C. Synthesis of enantiopure, axially chiral, Cα-tetrasubstituted α-amino acids with binaphthyl-based crowned side chains and 3D-structural analysis of their peptides. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.01.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Boudreault PL, Arseneault M, Otis F, Voyer N. Nanoscale tools to selectively destroy cancer cells. Chem Commun (Camb) 2008:2118-20. [DOI: 10.1039/b800528a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
It is 25 years since the first report of a synthetic ion channel transporter. Today, dozens of molecular and supramolecular designs have been developed to facilitate ion and small molecule transport across a bilayer membrane. Presented here is a concise summary of the advances made over the past four years. The transporters are grouped into three mechanistic classes: mobile carrier, monomeric channel, and self-assembled pore. Common building blocks are crown ethers, steroids, cyclodextrins, peptides, curcubiturils, and calixarenes. The eventual goal is to produce functional supramolecular devices such as sensors, enzyme assays, and lead candidates for pharmaceutical development.
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Affiliation(s)
- Beth A McNally
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, IN 46556, USA
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Sakai N, Mareda J, Matile S. Ion channels and pores, made from scratch. MOLECULAR BIOSYSTEMS 2007; 3:658-66. [PMID: 17882329 DOI: 10.1039/b704684g] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We elaborate on the structural diversity well beyond the biological limitations that becomes accessible with synthetic ion channels and pores, and on the importance of advanced nanoarchitecture to create significant function.
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Affiliation(s)
- Naomi Sakai
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
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Boudreault PL, Voyer N. Synthesis, characterization and cytolytic activity of α-helical amphiphilic peptide nanostructures containing crown ethers. Org Biomol Chem 2007; 5:1459-65. [PMID: 17464417 DOI: 10.1039/b702076g] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Many natural alpha-helical amphiphilic peptides are known to have lytic activity toward different cells. Herein, we describe the synthesis and the characterization of synthetic alpha-helical amphiphilic peptide nanostructures containing crown ethers, as well as the modulation of their cytolytic activity by adding different acidic dipeptide chains at the N- or C-terminus.
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Affiliation(s)
- Pierre-Luc Boudreault
- Département de chimie and Centre de recherche sur la fonction, la structure et l'ingénierie des protéines, Faculté des sciences et génie, Université Laval, Québec, CanadaG1K 7P4
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Tanaka H, Bollot G, Mareda J, Litvinchuk S, Tran DH, Sakai N, Matile S. Synthetic pores with sticky π-clamps. Org Biomol Chem 2007; 5:1369-80. [PMID: 17464406 DOI: 10.1039/b702255g] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this report, we describe design, synthesis, evaluation and molecular dynamics simulations of synthetic multifunctional pores with pi-acidic naphthalenediimide clamps. Experimental evidence is provided for the formation of unstable but inert, heterogeneous and acid-insensitive dynamic tetrameric pores that are sensitive to base and ionic strength. Blockage experiments reveal that the introduction of aromatic electron donor-acceptor interactions provides access to the selective recognition of pi-basic intercalators within the pore. This breakthrough is important for the application of synthetic pores as multianalyte sensors.
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Affiliation(s)
- Hiroyuki Tanaka
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
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Bury I, Heinrich B, Bourgogne C, Guillon D, Donnio B. Supramolecular Self-Organization of “Janus-like” Diblock Codendrimers: Synthesis, Thermal Behavior, and Phase Structure Modeling. Chemistry 2006; 12:8396-413. [PMID: 16892472 DOI: 10.1002/chem.200600449] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We report on the design and synthesis of three series of segmented amphiphilic block codendrimers, and on their self-organizing behavior in liquid-crystalline mesophases. Connecting two prefunctionalized monodendrons, each differing in their chemical constitution and generation number, yielded these diblock supermolecules. One wedge of the codendrimer was made hydrophobic, and is based on a branched poly(benzyl ether) monodendron functionalized at the periphery by lipophilic aliphatic fragments (also known as Percec dendrons). The other segment was made hydrophilic by the grafting of hydroxyl-containing moieties onto the focal functions of the former dendrons. Both types of dendrons were prepared independently by convergent methods and then joined in the ultimate stage of the synthetic procedure by cross-coupling reactions. In this way, the proportion of the dendritic blocks was varied independently to allow control of the hydrophilic/hydrophobic balance (HHB), the hydrogen-bonding ability, and consequently the capacity to tune the mesomorphic properties of the resulting "superamphiphiles" was anticipated. Essentially all the dendritic compounds display a thermotropic mesomorphism directly at or near room temperature as determined by using X-ray diffraction, polarized optical microscopy, and differential scanning calorimetry. The nature and the supramolecular organization of the mesophases, namely columnar and cubic phases, are correlated to the size of the respective block monodendrons and the chemical structures of the dendromesogens. The molecular organization within the cubic phases can be geometrically described and well understood by the space-filling polyhedron model.
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Affiliation(s)
- Izabela Bury
- Institut de Physique et Chimie des Matériaux de Strasbourg, Groupe des Matériaux Organiques, UMR 7504-CNRS/Université Louis Pasteur, 23 rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
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Ouellet M, Otis F, Voyer N, Auger M. Biophysical studies of the interactions between 14-mer and 21-mer model amphipathic peptides and membranes: Insights on their modes of action. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2006; 1758:1235-44. [PMID: 16579961 DOI: 10.1016/j.bbamem.2006.02.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2005] [Revised: 02/16/2006] [Accepted: 02/16/2006] [Indexed: 11/17/2022]
Abstract
We have investigated the interactions between synthetic amphipathic peptides and zwitterionic model membranes. Peptides with 14 and 21 amino acids composed of leucines and phenylalanines modified by the addition of crown ethers have been synthesized. The 14-mer and 21-mer peptides both possess a helical amphipathic structure as revealed by circular dichroism. To shed light on their mechanism of membrane interaction, different complementary biophysical techniques have been used such as circular dichroism, fluorescence, membrane conductivity measurement and NMR spectroscopy. Results obtained by these different techniques show that the 14-mer peptide is a membrane perturbator that facilitate the leakage of species such as calcein and Na ions, while the 21-mer peptide acts as an ion channel. (31)P solid-state NMR experiments on multilamellar vesicles reveal that the dynamics and/or orientation of the polar headgroups are greatly affected by the presence of the peptides. Similar results have also been obtained in mechanically oriented DLPC and DMPC bilayers where different acyl chain lengths seem to play a role in the interaction. On the other hand, (2)H NMR experiments on multilamellar vesicles demonstrate that the acyl chain order is affected differently by the two peptides. Based on these studies, mechanisms of action are proposed for the 14-mer and 21-mer peptides with zwitterionic membranes.
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Affiliation(s)
- Marise Ouellet
- Département de Chimie, Centre de Recherche sur la Fonction, la Structure et l'Ingénierie des Protéines, Centre de Recherche en Sciences et Ingénierie des Macromolécules, Université Laval, Québec, Québec, Canada G1K 7P4
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