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Grant TM, Rennison D, Krause AL, Mros S, Ferguson SA, Cook GM, Cameron A, Arabshahi HJ, Brimble MA, Cahill P, Svenson J. Stereochemical Effects on the Antimicrobial Properties of Tetrasubstituted 2,5-Diketopiperazines. ACS Med Chem Lett 2022; 13:632-640. [PMID: 35450374 PMCID: PMC9014430 DOI: 10.1021/acsmedchemlett.1c00683] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 03/31/2022] [Indexed: 12/11/2022] Open
Abstract
Antimicrobial drug resistance is a looming health crisis facing us in the modern era, and new drugs are urgently needed to combat this growing problem. Synthetic mimics of antimicrobial peptides have recently emerged as a promising class of compounds for the treatment of persistent microbial infections. In the current study, we investigate five cyclic N-alkylated amphiphilic 2,5-diketopiperazines against 15 different strains of bacteria and fungi, including drug-resistant clinical isolates. Several of the 2,5-diketopiperazines displayed activities similar or superior to antibiotics currently in clinical use, with activities coupled to both the cationic and hydrophobic substituents. All possible stereoisomers of the lead peptide were prepared, and the effects of stereochemistry and amphiphilicity were investigated via 1D and 2D NMR spectroscopy, solution dynamics, and membrane interaction modeling. Clear differences in solution structures and membrane interaction potentials explain the differences seen in the bioactivity and physicochemical properties of each stereoisomer.
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Affiliation(s)
- Thomas M. Grant
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland 1142, New Zealand
| | - David Rennison
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland 1142, New Zealand
| | - Alexandra L. Krause
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, Dunedin 9016, New Zealand
| | - Sonya Mros
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, Dunedin 9016, New Zealand
| | - Scott A. Ferguson
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, Dunedin 9016, New Zealand
| | - Gregory M. Cook
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, Dunedin 9016, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Auckland 1142, New Zealand
| | - Alan Cameron
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland 1142, New Zealand
| | - Homayon J. Arabshahi
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland 1142, New Zealand
| | - Margaret A. Brimble
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland 1142, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Auckland 1142, New Zealand
| | - Patrick Cahill
- Cawthron Institute, 98 Halifax Street, Nelson 7010, New Zealand
| | - Johan Svenson
- Cawthron Institute, 98 Halifax Street, Nelson 7010, New Zealand
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2
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Decoration of glutathione with copper-platinum nanoparticles for chirality sensing of tyrosine enantiomers. Electrochem commun 2020. [DOI: 10.1016/j.elecom.2019.106638] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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3
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Kanwa N, De SK, Maity A, Chakraborty A. Interaction of aliphatic amino acids with zwitterionic and charged lipid membranes: hydration and dehydration phenomena. Phys Chem Chem Phys 2020; 22:3234-3244. [DOI: 10.1039/c9cp06188f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aliphatic amino acids interact differently in order to induce gelation or fluidization in zwitterionic and charged lipid membranes as a result of hydration or dehydration of the membrane surface.
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Affiliation(s)
- Nishu Kanwa
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore
- India
| | - Soumya Kanti De
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore
- India
| | - Avijit Maity
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore
- India
| | - Anjan Chakraborty
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore
- India
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4
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Chirality-Dependent Adsorption between Amphipathic Peptide and POPC Membrane. Int J Mol Sci 2019; 20:ijms20194760. [PMID: 31557910 PMCID: PMC6801444 DOI: 10.3390/ijms20194760] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 09/20/2019] [Accepted: 09/22/2019] [Indexed: 01/01/2023] Open
Abstract
The interactions between chiral molecules and cell membranes have attracted more and more attention in recent decades, due to their importance in molecular science and medical applications. It is observed that some peptides composed of different chiral amino acids may have distinct interactions with a membrane. How does the membrane exhibit a selective behavior related to the chirality of the peptides? Microscopically, the interactions between the peptides and the membrane are poorly understood. In this work, we study the interactions between an amphipathic peptide (C6) and POPC membrane with simulations. The kinetics and thermodynamics of peptide enantiomers during the adsorption to the membrane are characterized with direct simulations and umbrella sampling. It is observed that there are slow kinetics for the peptide composed of D-type amino acids. Along the observed pathways, the free energy landscapes are determined with umbrella sampling techniques. A free-energy barrier for the peptide composed of D-amino acids is observed, which is consistent with the kinetic observations. The results indicate the concurrent adsorption and rotation of the peptide helix. The local interactions between the peptides and the membrane are examined in detail, including the contact interactions between the peptides and the membrane, and the distributions of the lipids around the peptide. There are observable differences of the local interactions for the cases related to different peptide enantiomers. These results further demonstrate the importance of the rotation of peptide helix during the adsorption. More interestingly, all these kinetic differences between peptide enantiomers can be explained based on the conformations of the residue Trp and interactions between Trp and lipid molecules. These results give us a molecular understanding of the mechanism of the chirality-dependent peptide-membrane interactions, and may provide clues to designing systems which are sensitive to the chirality of membranes.
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5
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Surface interactions determined by stereostructure on the example of 7-hydroxycholesterol epimers – The Langmuir monolayer study. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2019; 1861:1275-1283. [DOI: 10.1016/j.bbamem.2019.05.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 12/20/2018] [Accepted: 01/06/2019] [Indexed: 01/06/2023]
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6
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Sato K, Ji W, Álvarez Z, Palmer LC, Stupp SI. Chiral Recognition of Lipid Bilayer Membranes by Supramolecular Assemblies of Peptide Amphiphiles. ACS Biomater Sci Eng 2019; 5:2786-2792. [DOI: 10.1021/acsbiomaterials.9b00553] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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7
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Creatto EJ, Ceccacci F, Mancini G, Sabadini E. Effect of the Hydrophobic Tail of a Chiral Surfactant on the Chirality of Aggregates and on the Formation of Wormlike Micelles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:13288-13295. [PMID: 30350684 DOI: 10.1021/acs.langmuir.8b02556] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The micellization of chiral enantiopure surfactants, dodecyl- N, N-dimethyl- N-( S)-(1-phenyl)ethylammonium bromide and hexadecyl- N, N-dimethyl- N-( S)-(1-phenyl)ethylammonium bromide, was investigated by circular dichroism spectroscopy and isothermal titration calorimetry. The formation of wormlike micelles (WLMs) upon the addition of sodium salicylate to the aqueous solutions of the surfactant was observed only in the case of hexadecyl- N, N-dimethyl- N-( S)-(1-phenyl)ethylammonium bromide. The presence of WLMs was assessed by cryogenic transmission electron microscopy, rheology, and isothermal titration calorimetry experiments, and their supramolecular chirality was investigated by circular dichroism spectroscopy. Depending on the length of the hydrophobic tail, molecular chirality is transferred into a different chiral supramolecular trait. Our findings demonstrate that hydrophobic interactions by controlling the organization and functions of self-assemblies also control the transcription of the chiral information from molecules to complex supramolecular systems.
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Affiliation(s)
- Eduardo J Creatto
- Department of Physical-Chemistry, Institute of Chemistry , University of Campinas , P.O. Box 6154, 13084-862 Campinas , São Paulo , Brazil
| | - Francesca Ceccacci
- CNR-Istituto di Metodologie Chimiche, Sezione Meccanismi di Reazione, Dipartimento di Chimica Università degli Studi di Roma "Sapienza" , P.le A. Moro 5 , 00185 Roma , Italy
| | - Giovanna Mancini
- CNR-Istituto di Metodologie Chimiche , Via Salaria km 29.300 , Monterotondo Scalo, 00016 Rome , Italy
| | - Edvaldo Sabadini
- Department of Physical-Chemistry, Institute of Chemistry , University of Campinas , P.O. Box 6154, 13084-862 Campinas , São Paulo , Brazil
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8
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He Q, Tuo DH, Ao YF, Wang QQ, Wang DX. Vesicles Constructed with Chiral Amphiphilic Oxacalix[2]arene[2]triazine Derivatives for Enantioselective Recognition of Organic Anions. ACS APPLIED MATERIALS & INTERFACES 2018; 10:3181-3185. [PMID: 29313336 DOI: 10.1021/acsami.7b18723] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Chiral amphiphilic oxacalix[2]arene[2]triazine derivatives 1-3 bearing l-prolinol moieties were synthesized. The self-assembly behavior of the chiral macrocyclic amphiphiles was investigated. SEM, TEM, and DLS measurements demonstrated that 1 formed stable vesicles (size of ∼90 nm), whereas 2 and 3 formed micelles. As monitored by DLS, vesicles composed of 1 showed selective response to the chiral anions (2S, 3S)-2,3-dihydroxysuccinate (d-tartrate), S-mandelate and S-(+)-camphorsulfonate over their enantiomers. DFT calculations revealed that the enantioselectivity arises from cooperative anion-π interactions and hydrogen bonding between the chiral electron-deficient cavity and the organic anions.
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Affiliation(s)
- Qing He
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - De-Hui Tuo
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Yu-Fei Ao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Qi-Qiang Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - De-Xian Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academy of Sciences , Beijing 100049, China
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9
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Zhang X, Yu Q, Chen S, Dai Z. A photo-stable fluorescent chiral thiourea probe for enantioselective discrimination of chiral guests. NEW J CHEM 2018. [DOI: 10.1039/c8nj00374b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Herein, a chiral thiourea Schiff base derived from (1R,2R)-1,2-cyclohexanediamine and tetraphenylethylene (TPE) was applied as a highly effective chiral sensor for the enantioselective discrimination of various acids and aminesviaion-pair and hydrogen-bond interaction.
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Affiliation(s)
- Xueyan Zhang
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University
- Nanjing
- P. R. China
| | - Qiuhan Yu
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University
- Nanjing
- P. R. China
| | - Shengxin Chen
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University
- Nanjing
- P. R. China
| | - Zhenya Dai
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University
- Nanjing
- P. R. China
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10
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Fang L, Lv C, Wang G, Feng L, Stavropoulos P, Gao G, Ai L, Zhang J. Discrimination of Enantiomers of Dipeptide Derivatives with Two Chiral Centers by Tetraaza Macrocyclic Chiral Solvating Agents Using 1H NMR Spectroscopy. Org Chem Front 2016; 3:1716-1724. [PMID: 28191319 PMCID: PMC5300753 DOI: 10.1039/c6qo00521g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
1H NMR spectroscopy is often used to discriminate enantiomers of chiral analytes and determine their enantiomeric excess (ee) by various chiral auxiliaries. In reported research, these studies were mainly focused on chiral discriminantion of chiral analytes with only one chiral center. However, many chiral compounds possessing two or more chiral centers are often found in natural products, chiral drugs, products of asymmetric synthesis and biological systems. Therefore, it is necessary to investigate their chiral discrimination by effective chiral auxiliaries using 1H NMR spectroscopy. In this paper, a new class of tetraaza macrocyclic chiral solvating agents (TAMCSAs) with two amide (CONH), two amino (NH) and two phenolic hydroxyl (PhOH) groups has been designed and synthsized for chiral discrimination towards dipeptide derivatives with two chiral centers. These dipeptide derivatives are important chiral species because some of them are used as clinical drugs and special dietary supplements for treatment of human diseases, such as L-alanyl-L-glutamine and aspartame. The results show that these TAMCSAs have excellent chiral discriminating properties and offer multiple detection possibilities pertaining to 1H NMR signals of diagnostic split protons. The nonequivalent chemical shifts (up to 0.486 ppm) of various types of protons of these dipeptide derivatives were evaluated with the assistance of well-resolved 1H NMR signals in most cases. In addition, enantiomeric excesses (ee) of the dipeptide derivatives with different optical compositions have been calculated based on integration of well-separeted proton signals. At the same time, the possible chiral discriminating behaviors have been discussed by means of Job plots, ESI mass spectra and a proposed theoretical model of (±)-G1 with TAMCSA 1c. Additionally, the association constants of enantiomers of (±)-G5 with TAMCSA 1a were calculated by employing the nonlinear curve-fitting method.
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Affiliation(s)
- Lixia Fang
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Caixia Lv
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Guo Wang
- Department of Chemistry, Capital Normal University, Beijing 10048, P. R. China
| | - Lei Feng
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Pericles Stavropoulos
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, USA
| | - Guangpeng Gao
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Lin Ai
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Jiaxin Zhang
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
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11
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Faggi E, Vicent C, Luis SV, Alfonso I. Stereoselective recognition of the Ac-Glu-Tyr-OH dipeptide by pseudopeptidic cages. Org Biomol Chem 2015; 13:11721-31. [PMID: 26481115 DOI: 10.1039/c5ob01889g] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Pseudopeptidic molecular cages are appealing receptors since they can display different polar and non-polar interaction sites in a modular framework and a controlled disposition. Inspired by previous host-guest knowledge, two pseudopeptidic molecular cages based on serine and threonine (CySer and CyThr, respectively) were designed and synthesized as hosts for the binding of the four possible stereoisomers of the Ac-Glu-Tyr-OH dipeptide, a target sequence of tyrosine kinases. The careful NMR titration experiments in aqueous acetonitrile allowed the determination of the binding constants and reflected a difference in the stability of the corresponding diastereomeric host-guest complexes. The CySer cage proved to be slightly more efficient than the CyThr counterpart, although both showed similar stereoselectivity trends: LL > DD ≥ LD > DL. This stereoselective binding was retained in the gas phase, as shown by ESI-MS competition experiments using the enantiomer-labelled method (EL), as well as CID experiments. Thus, the MS-determined discriminations follow the same trends observed by NMR, suggesting that the stereoselectivity observed for these systems must be mainly dictated by the polar host-guest interactions. Despite the stereoselective binding of short peptide sequences in competitive media being a challenging issue in supramolecular chemistry, our results demonstrate the power of pseudopeptidic cages in molecular recognition with foreseen implications in chemical biology.
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Affiliation(s)
- Enrico Faggi
- Department of Biological Chemistry and Molecular Modeling, IQAC-CSIC, Jordi Girona, 18-26, E-08034, Barcelona, Spain.
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12
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Ceccacci F, Scipioni A, Altieri B, Giansanti L, Mancini G. Achiral Dye/Surfactant Heteroaggregates for Chiral Sensing of Phosphocholines. Chirality 2015; 28:22-8. [DOI: 10.1002/chir.22547] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/24/2015] [Accepted: 09/28/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Francesca Ceccacci
- CNR-IMC-Sezione Meccanismi di Reazione c/o Dipartimento di Chimica; Sapienza, Università di Roma; Rome Italy
| | - Anita Scipioni
- Dipartimento di Chimica; Sapienza, Università di Roma; Rome Italy
| | - Barbara Altieri
- Dipartimento di Chimica; Università dell'Aquila; Coppito Italy
| | - Luisa Giansanti
- Dipartimento di Chimica; Università dell'Aquila; Coppito Italy
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13
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Ishigami T, Suga K, Umakoshi H. Chiral Recognition of L-Amino Acids on Liposomes Prepared with L-Phospholipid. ACS APPLIED MATERIALS & INTERFACES 2015; 7:21065-72. [PMID: 26339952 DOI: 10.1021/acsami.5b07198] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In this study, we demonstrated that liposomes composed of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) can recognize several l-amino acids, but not their d-enantiomers, by analyzing their adsorptive behavior and using circular dichroism spectroscopy. Changes in liposomal membrane properties, determined based on fluorescent probe analysis and differential scanning calorimetry, were induced by l-amino acid binding. UV resonance Raman spectroscopy analysis suggested that the chiral recognition was mediated by electrostatic, hydrophobic, and hydrogen bond interactions, where the recognition site could therefore be constructed on the DPPC membrane. Our findings clearly indicate the potential function of liposomes in asymmetric recognition.
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Affiliation(s)
- Takaaki Ishigami
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University , 1-3 Machikaneyamacho, Toyonaka, Osaka 560-8531, Japan
| | - Keishi Suga
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University , 1-3 Machikaneyamacho, Toyonaka, Osaka 560-8531, Japan
| | - Hiroshi Umakoshi
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University , 1-3 Machikaneyamacho, Toyonaka, Osaka 560-8531, Japan
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14
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Sorrenti A, Illa O, Pons R, Ortuño RM. Chiral Cyclobutane β-Amino Acid-Based Amphiphiles: Influence of Cis/Trans Stereochemistry on Solution Self-Aggregation and Recognition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:9608-9618. [PMID: 26286019 DOI: 10.1021/acs.langmuir.5b02700] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Novel diastereomeric anionic amphiphiles based on the rigid cyclobutane β-amino acid scaffold have been synthesized and deeply investigated with the aim of generating new functional supramolecular architectures on the basis of the rational design of original amphiphilic molecules and the control of their self-assembly. The main interest has been focused on the effect that cis/trans stereochemistry exerts on their molecular organization and recognition. In diluted solutions, the relative stereochemistry mainly influences the headgroup solvation and anionic-charge stabilization, i.e., better stabilized in the cis diastereoisomer due to intramolecular hydrogen-bonding and/or charge-dipole interactions. This provokes differences in their physicochemical behavior (pKa, cmc, conductivity) as well as in the structural parameters of the spherical micelles formed. Although both diastereoisomers form fibers that evolve with time from the spherical micelles, they display markedly different morphology and kinetics of formation. In the lyotropic liquid crystal domain, the greatest differences are observed at the highest concentrations and can be ascribed to different hydrogen-bonding and molecular packing imposed by the stereochemical constraints. Remarkably, the spherical micelles of the two anionic surfactants show dramatically diverse enantioselection ability for bilirubin enantiomers. In addition, both the surfactants form heteroaggregates with bilirubin at submicellar concentrations but with a different expression of supramolecular chirality. This points out that the unlike relative configuration of the two surfactants influences their chiral recognition ability as well as the fashion in which chirality is expressed at the supramolecular level by controlling the molecular organization in both micellar aggregates and surfactant/bilirubin heteroaggregates. All these differential features can be appropriate and useful for the design and development of new soft materials with predictable and tunable properties and reveal the cyclobutane motif as a valuable scaffold for the preparation of new amphiphiles.
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Affiliation(s)
- Alessandro Sorrenti
- Departament de Química, Universitat Autònoma de Barcelona , Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - Ona Illa
- Departament de Química, Universitat Autònoma de Barcelona , Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - Ramon Pons
- Departament de Tecnologia Química i de Tensioactius, Institut de Química Avançada de Catalunya, IQAC-CSIC , c/Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Rosa M Ortuño
- Departament de Química, Universitat Autònoma de Barcelona , Cerdanyola del Vallès, 08193 Barcelona, Spain
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15
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Arranz-Gibert P, Guixer B, Malakoutikhah M, Muttenthaler M, Guzmán F, Teixidó M, Giralt E. Lipid bilayer crossing--the gate of symmetry. Water-soluble phenylproline-based blood-brain barrier shuttles. J Am Chem Soc 2015; 137:7357-64. [PMID: 25992679 DOI: 10.1021/jacs.5b02050] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Drug delivery to the brain can be achieved by various means, including blood-brain barrier (BBB) disruption, neurosurgical-based approaches, and molecular design. Recently, passive diffusion BBB shuttles have been developed to transport low-molecular-weight drug candidates to the brain which would not be able to cross unaided. The low water solubility of these BBB shuttles has, however, prevented them from becoming a mainstream tool to deliver cargos across membranes. Here, we describe the design, synthesis, physicochemical characterization, and BBB-transport properties of phenylproline tetrapeptides, (PhPro)4, an improved class of BBB shuttles that operates via passive diffusion. These PhPro-based BBB shuttles showed 3 orders of magnitude improvement in water solubility compared to the gold-standard (N-MePhe)4, while retaining very high transport values. Transport capacity was confirmed when two therapeutically relevant cargos, nipecotic acid and l-3,4-dihydroxyphenylalanine (i.e., l-DOPA), were attached to the shuttle. Additionally, we used the unique chiral and conformationally restricted character of the (PhPro)4 shuttle to probe its chiral interactions with the lipid bilayer of the BBB. We studied the transport properties of 16 (PhPro)4 stereoisomers using the parallel artificial membrane permeability assay and looked at differences in secondary structure. Most stereoisomers displayed excellent transport values, yet this study also revealed pairs of enantiomers with high enantiomeric discrimination and different secondary structure, where one enantiomer maintained its high transport values while the other had significantly lower values, thereby confirming that stereochemistry plays a significant role in passive diffusion. This could open the door to the design of chiral and membrane-specific shuttles with potential applications in cell labeling and oncology.
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Affiliation(s)
- Pol Arranz-Gibert
- †Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10, Barcelona E-08028, Spain
| | - Bernat Guixer
- †Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10, Barcelona E-08028, Spain
| | - Morteza Malakoutikhah
- †Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10, Barcelona E-08028, Spain.,‡Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran
| | - Markus Muttenthaler
- †Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10, Barcelona E-08028, Spain
| | - Fanny Guzmán
- §Núcleo de Biotecnología Curauma, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Meritxell Teixidó
- †Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10, Barcelona E-08028, Spain
| | - Ernest Giralt
- †Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10, Barcelona E-08028, Spain.,∥Department of Organic Chemistry, University of Barcelona, Martí i Franquès 1-11, Barcelona E-08028, Spain
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16
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Syntheses of some α-cyclic tripeptides as potential inhibitors for HMG-CoA Reductase. Amino Acids 2015; 47:1495-505. [PMID: 25929584 DOI: 10.1007/s00726-015-1977-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Accepted: 03/30/2015] [Indexed: 01/17/2023]
Abstract
α-Cyclic tripeptides (CtPs) are the most rigid members of the cyclic peptide family. However, due to their synthetic difficulty, biological activity has remained undisclosed. The incorporation of side-chain-protected natural amino acids into functional CtPs was performed to explore the potential biological functions. Several novel CtPs that consist of protected serine (S(Bn)) and/or glutamate (E(OBn)) were prepared from corresponding linear tripeptides by chemical synthesis. There is a strong possibility for CtPs that contain 3 phenyl groups to correlate with atorvastatin structure. The binding effects in human HMG-CoA reductase (hHMGR) activities were first evaluated by molecular docking. High docking scores were received with these CtPs for enzyme. Therefore, enzymatic assays were carried out and the compound cyclo(S(Bn))3 was indeed able to moderately inhibit hHMGR (IC50 = 110 μM).
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17
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Malakoutikhah M, Guixer B, Arranz-Gibert P, Teixidó M, Giralt E. ‘À la Carte’ Peptide Shuttles: Tools to Increase Their Passage across the Blood-Brain Barrier. ChemMedChem 2014; 9:1594-601. [DOI: 10.1002/cmdc.201300575] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Indexed: 11/11/2022]
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18
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Ceccacci F, Giansanti L, Mancini G, Mauceri A, Scipioni A, Sperduto C. Transcription of chirality from molecules to complex systems: the role of hydrophobic interactions. Supramol Chem 2013. [DOI: 10.1080/10610278.2013.822972] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Francesca Ceccacci
- CNR, Istituto d Metodologie Chimiche – Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica Università di Roma Sapienza, P.le Aldo Moro 5, 00165 Rome, Italy
| | - Luisa Giansanti
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell'Aquila, Via Vetoio Coppito 1, 67100 Coppito L'Aquila, Italy
| | - Giovanna Mancini
- CNR, Istituto d Metodologie Chimiche – Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica Università di Roma Sapienza, P.le Aldo Moro 5, 00165 Rome, Italy
| | - Alessandro Mauceri
- CNR, Istituto d Metodologie Chimiche – Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica Università di Roma Sapienza, P.le Aldo Moro 5, 00165 Rome, Italy
| | - Anita Scipioni
- Dipartimento di Chimica Università di Roma Sapienza, Fondazione Pasteur – Cenci Bolognetti, P.le Aldo Moro 5, 00165 Rome, Italy
| | - Claudio Sperduto
- CNR, Istituto d Metodologie Chimiche – Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica Università di Roma Sapienza, P.le Aldo Moro 5, 00165 Rome, Italy
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19
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Sorrenti A, Illa O, Ortuño RM. Amphiphiles in aqueous solution: well beyond a soap bubble. Chem Soc Rev 2013; 42:8200-19. [DOI: 10.1039/c3cs60151j] [Citation(s) in RCA: 187] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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20
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A DSC investigation on the influence of gemini surfactant stereochemistry on the organization of lipoplexes and on their interaction with model membranes. Chem Phys Lipids 2012. [DOI: 10.1016/j.chemphyslip.2012.11.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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Marinelli F, Sorrenti A, Corvaglia V, Leone V, Mancini G. Molecular Description of the Propagation of Chirality from Molecules to Complex Systems: Different Mechanisms Controlled by Hydrophobic Interactions. Chemistry 2012; 18:14680-8. [DOI: 10.1002/chem.201202342] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Indexed: 11/12/2022]
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22
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Santos S, Torcato I, Castanho MARB. Biomedical applications of dipeptides and tripeptides. Biopolymers 2012. [DOI: 10.1002/bip.22067] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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23
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Sorrenti A, Altieri B, Ceccacci F, Di Profio P, Germani R, Giansanti L, Savelli G, Mancini G. Deracemization of bilirubin as the marker of the chirality of micellar aggregates. Chirality 2011; 24:78-85. [DOI: 10.1002/chir.21026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Accepted: 08/11/2011] [Indexed: 11/10/2022]
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24
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Horta BAC, Hünenberger PH. Enantiomeric Segregation in the Gel Phase of Lipid Bilayers. J Am Chem Soc 2011; 133:8464-6. [DOI: 10.1021/ja202479u] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bruno A. C. Horta
- Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, ETH-Hönggerberg, 8093 Zürich, Switzerland
| | - Philippe H. Hünenberger
- Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, ETH-Hönggerberg, 8093 Zürich, Switzerland
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25
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Han C, Hou X, Zhang H, Guo W, Li H, Jiang L. Enantioselective Recognition in Biomimetic Single Artificial Nanochannels. J Am Chem Soc 2011; 133:7644-7. [DOI: 10.1021/ja2004939] [Citation(s) in RCA: 219] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cuiping Han
- Key Laboratory of Pesticide and Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xu Hou
- National Center for Nanoscience and Technology, Beijing 100190, P. R. China
| | - Huacheng Zhang
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Wei Guo
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Haibing Li
- Key Laboratory of Pesticide and Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Lei Jiang
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Beijing University of Aeronautics and Astronautics, Beijing 100191, P. R. China
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26
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Adams RW, Aguilar JA, Cassani J, Morris GA, Nilsson M. Resolving natural product epimer spectra by matrix-assisted DOSY. Org Biomol Chem 2011; 9:7062-4. [DOI: 10.1039/c1ob06097j] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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SYNTHESIS AND CHARACTERIZATION OF OPTICALLY ACTIVE BLOCK COPOLYMER WITH THERMO-RESPONSIVE CHARACTERISTIC VIA "CLICK" REACTION. ACTA POLYM SIN 2010. [DOI: 10.3724/sp.j.1105.2010.09237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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28
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Sorrenti A, Diociaiuti M, Corvaglia V, Chistolini P, Mancini G. Chiral recognition of dipeptides in Langmuir monolayers. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.10.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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29
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ZHAO F, LIU Z, FENG L, SUN J, HU J. PREPARATION AND CHARACTERIZATION OF OPTICALLY ACTIVE AMPHIPHILIC BLOCK COPOLYMER. ACTA POLYM SIN 2009. [DOI: 10.3724/sp.j.1105.2009.00166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Bernardini C, D'Arrigo P, Elemento G, Mancini G, Servi S, Sorrenti A. The posssible role of enantiodiscrimination in bilirubin toxicity. Chirality 2009; 21:87-91. [DOI: 10.1002/chir.20610] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Mantel C, Chandor A, Gasparutto D, Douki T, Atta M, Fontecave M, Bayle PA, Mouesca JM, Bardet M. Combined NMR and DFT Studies for the Absolute Configuration Elucidation of the Spore Photoproduct, a UV-Induced DNA Lesion. J Am Chem Soc 2008; 130:16978-84. [DOI: 10.1021/ja805032r] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Claire Mantel
- CEA, INAC, SCIB, F-38054 Grenoble, France, and CEA, IRTSV, F-38054 Grenoble, France
| | - Alexia Chandor
- CEA, INAC, SCIB, F-38054 Grenoble, France, and CEA, IRTSV, F-38054 Grenoble, France
| | - Didier Gasparutto
- CEA, INAC, SCIB, F-38054 Grenoble, France, and CEA, IRTSV, F-38054 Grenoble, France
| | - Thierry Douki
- CEA, INAC, SCIB, F-38054 Grenoble, France, and CEA, IRTSV, F-38054 Grenoble, France
| | - Mohamed Atta
- CEA, INAC, SCIB, F-38054 Grenoble, France, and CEA, IRTSV, F-38054 Grenoble, France
| | - Marc Fontecave
- CEA, INAC, SCIB, F-38054 Grenoble, France, and CEA, IRTSV, F-38054 Grenoble, France
| | - Pierre-Alain Bayle
- CEA, INAC, SCIB, F-38054 Grenoble, France, and CEA, IRTSV, F-38054 Grenoble, France
| | - Jean-Marie Mouesca
- CEA, INAC, SCIB, F-38054 Grenoble, France, and CEA, IRTSV, F-38054 Grenoble, France
| | - Michel Bardet
- CEA, INAC, SCIB, F-38054 Grenoble, France, and CEA, IRTSV, F-38054 Grenoble, France
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32
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Ceccacci F, Giansanti L, Mortera SL, Mancini G, Sorrenti A, Villani C. Enantiodiscrimination of bilirubin-IXα enantiomers in biomembrane models: Has chirality a role in bilirubin toxicity? Bioorg Chem 2008; 36:252-4. [DOI: 10.1016/j.bioorg.2008.05.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2008] [Revised: 04/30/2008] [Accepted: 05/02/2008] [Indexed: 11/30/2022]
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33
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Deng M, Huang X, Wu R, Wang Y. Micellization-Induced Conformational Change of a Chiral Proline Surfactant. J Phys Chem B 2008; 112:10509-13. [DOI: 10.1021/jp802818a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manli Deng
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface Science, and State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Xu Huang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface Science, and State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Rongliang Wu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface Science, and State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Yilin Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface Science, and State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
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34
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Bombelli C, Bernardini C, Elemento G, Mancini G, Sorrenti A, Villani C. Concentration as the Switch for Chiral Recognition in Biomembrane Models. J Am Chem Soc 2008; 130:2732-3. [DOI: 10.1021/ja710687e] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cecilia Bombelli
- CNR, Istituto di Metodologie Chimiche and Dipartimento di Chimica “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy, and Dipartimento di Chimica and Dipartimento di Studi di Chimica e Tecnologia delle Sostanze Biologicamente Attive, Università degli Studi di Roma “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy
| | - Carlotta Bernardini
- CNR, Istituto di Metodologie Chimiche and Dipartimento di Chimica “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy, and Dipartimento di Chimica and Dipartimento di Studi di Chimica e Tecnologia delle Sostanze Biologicamente Attive, Università degli Studi di Roma “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy
| | - Gioia Elemento
- CNR, Istituto di Metodologie Chimiche and Dipartimento di Chimica “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy, and Dipartimento di Chimica and Dipartimento di Studi di Chimica e Tecnologia delle Sostanze Biologicamente Attive, Università degli Studi di Roma “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy
| | - Giovanna Mancini
- CNR, Istituto di Metodologie Chimiche and Dipartimento di Chimica “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy, and Dipartimento di Chimica and Dipartimento di Studi di Chimica e Tecnologia delle Sostanze Biologicamente Attive, Università degli Studi di Roma “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy
| | - Alessandro Sorrenti
- CNR, Istituto di Metodologie Chimiche and Dipartimento di Chimica “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy, and Dipartimento di Chimica and Dipartimento di Studi di Chimica e Tecnologia delle Sostanze Biologicamente Attive, Università degli Studi di Roma “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy
| | - Claudio Villani
- CNR, Istituto di Metodologie Chimiche and Dipartimento di Chimica “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy, and Dipartimento di Chimica and Dipartimento di Studi di Chimica e Tecnologia delle Sostanze Biologicamente Attive, Università degli Studi di Roma “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy
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35
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Chiral recognition of dipeptides in bio-membrane models: the role of amphiphile hydrophobic chains. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2007.11.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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36
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Alzalamira A, Ceccacci F, Monti D, Mortera SL, Mancini G, Sorrenti A, Venanzi M, Villani C. Discrimination of the enantiomers of biphenylic derivatives in micellar aggregates formed by chiral amidic surfactants. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.07.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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37
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Jin S, Jeong KU, Tu Y, Graham MJ, Wang J, Harris FW, Cheng SZD. Structure of Macroscopic Monodomains and Its Soft Confinements of Chiral Smectic Phases on Crystallization in a Main-Chain Nonracemic Liquid Crystalline Polyester. Macromolecules 2007. [DOI: 10.1021/ma070821p] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shi Jin
- Maurice Morton Institute and Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Kwang-Un Jeong
- Maurice Morton Institute and Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Yingfeng Tu
- Maurice Morton Institute and Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Matthew J. Graham
- Maurice Morton Institute and Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Jing Wang
- Maurice Morton Institute and Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Frank W. Harris
- Maurice Morton Institute and Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Stephen Z. D. Cheng
- Maurice Morton Institute and Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
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38
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Ceccacci F, Giansanti L, Mancini G, Mencarelli P, Sorrenti A. Discrimination of the enantiomers of new biphenylic derivatives in chiral micellar aggregates. NEW J CHEM 2007. [DOI: 10.1039/b610587d] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Cruciani O, Borocci S, Lamanna R, Mancini G, Segre AL. Chiral recognition of dipeptides in phosphatidylcholine aggregates. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.10.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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40
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Lopes SCDN, Fedorov A, Castanho MARB. Chiral Recognition ofD-Kyotorphin by Lipidic Membranes: Relevance Toward Improved Analgesic Efficiency. ChemMedChem 2006; 1:723-8. [PMID: 16902926 DOI: 10.1002/cmdc.200600096] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
D-Kyotorphin (D-KTP), the most potent isomer of the endorphin-like dipeptide kyotorphin (KTP), is a good drug candidate for the treatment of chronic pain and is thought to be involved in receptor-mediated processes. According to the "membrane catalysis" model, ligands interact with membrane lipids to attain high local concentrations in the receptor vicinity and to adopt the necessary conformation for docking. Therefore, the interaction and recognition of D-KTP by membranes is potentially important to its increased analgesic effect. In spite of the neutral net charge of D-KTP at pH 7.4, fluorescence spectroscopy reveals that the interaction with large unilamellar vesicles is more extensive than was observed for KTP. The tyrosine residue interacts extensively with rigid membranes, with a location and well-defined orientation in the bilayer. This suggests not only that D-KTP meets the structural constraints needed for receptor-ligand interaction in a manner similar to that of KTP, but also that the stronger membrane interaction and ability to discriminate rigid membrane domains might contribute to its improved analgesic effect.
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Affiliation(s)
- Sílvia C D N Lopes
- Centro de Química-Física Molecular, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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41
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Lopes SCDN, Soares CM, Baptista AM, Goormaghtigh E, Cabral BJC, Castanho MARB. Conformational and Orientational Guidance of the Analgesic Dipeptide Kyotorphin Induced by Lipidic Membranes: Putative Correlation toward Receptor Docking. J Phys Chem B 2006; 110:3385-94. [PMID: 16494353 DOI: 10.1021/jp053651w] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The analgesic dipeptide kyotorphin (L-Tyr-L-Arg) and an acylated kyotorphin derivative were studied by a combination of theoretical (molecular dynamics simulation and quantum mechanics methods) and experimental (fluorescence and infrared spectroscopies) approaches both in solution and in model systems of membranes. At biological pH the peptides have a neutral net charge. Nevertheless, their phenolic rings interact with phospholipid molecules (partition coefficient varies from 6 x 10(2) to 2 x 10(4), depending on the lipid and pH used) despite being exposed to the aqueous bulk medium. The lowest energy transition dipole moment is displaced from the normal to the lipid bilayer by 20 degrees on average. The observed extensive interaction, pK(a), precise location, and well-defined orientation in membranes combined with the ability to discriminate rigid raftlike membrane domains suggest that kyotorphin meets the structural constraints needed for receptor-ligand interaction. The acylated kyotorphin derivative mimics kyotorphin properties and represents a promising way for entrapment in a drug carrier and transport across the blood-brain barrier.
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Affiliation(s)
- Sílvia C D N Lopes
- Centro de Química-Física Molecular, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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42
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Castanho MARB, Fernandes MX. Lipid membrane-induced optimization for ligand-receptor docking: recent tools and insights for the "membrane catalysis" model. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2005; 35:92-103. [PMID: 16217647 DOI: 10.1007/s00249-005-0007-9] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2005] [Revised: 07/07/2005] [Accepted: 07/18/2005] [Indexed: 11/25/2022]
Abstract
Cells in living organisms are regulated by chemical and physical stimuli from their environment. Often, ligands interact with membrane receptors to trigger responses and Sargent and Schwyzer conceived a model to describe this process, "membrane catalysis". There is a notion that the physical organization of membranes can control the response of cells by speeding up reactions. We revisit the "membrane catalysis" model in the light of recent technical, methodological and theoretical advances and how they can be exploited to highlight the details of membrane mediated ligand-receptor interactions. We examine the possible effects that ligand concentration causes in the membrane catalysis and focus our attention in techniques used to determine the partition constant. The hypothetical diffusional advantage associated with membrane catalysis is discussed and the applicability of existing models is assessed. The role of in-depth location and orientation of ligands is explored emphasizing the contribution of new analysis methods and spectroscopic techniques. Results suggest that membranes can optimize the interaction between ligands and receptors through several different effects but the relative contribution of each must be carefully investigated. We certainly hope that the conjugation of the methodological and technical advances here reported will revive the interest in the membrane catalysis model.
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Affiliation(s)
- Miguel A R B Castanho
- Centro de Quìmica e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande Ed. C8, 1749-016 Lisboa, Portugal.
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43
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Ceccacci F, Mancini G, Sferrazza A, Villani C. pH Variation as the Switch for Chiral Recognition in a Biomembrane Model. J Am Chem Soc 2005; 127:13762-3. [PMID: 16201776 DOI: 10.1021/ja053961s] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chiral recognition was observed in a biomembrane model. Micellar aggregates formed by N-dodecyl-l-proline were, in fact, able to convert the racemic mixture of a biphenyl derivative into an enantiomerically enriched mixture. The extent of deracemization was established by HPLC on a chiral stationary phase and, in some conditions, resulted in the highest ever observed in these systems. The configuration of the exceeding enantiomer and the extent of enantiomeric enrichment depend on the medium pH. In fact, the exceeding enantiomer has the same configuration at pH 1 and 7, being more abundant at pH 7, whereas it has the opposite configuration at pH 13. The changes in the stereochemical bias are reversible.
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Affiliation(s)
- Francesca Ceccacci
- Dipartimento di Chimica, Università degli Studi di Roma La Sapienza, P.le A. Moro 5, 00185 Roma, Italy
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44
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Di Profio P, Arca S, Germani R, Savelli G. Surfactant promoting effects on clathrate hydrate formation: Are micelles really involved? Chem Eng Sci 2005. [DOI: 10.1016/j.ces.2005.02.051] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Czerwenka C, Lindner W. Stereoselective peptide analysis. Anal Bioanal Chem 2005; 382:599-638. [PMID: 15856198 DOI: 10.1007/s00216-005-3091-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2004] [Revised: 01/14/2005] [Accepted: 01/19/2005] [Indexed: 10/25/2022]
Abstract
The stereochemistry of a peptide determines its spatial features and can profoundly influence its chemical properties and biological activity. Thus, the analysis of the stereochemical properties of a peptide is an important aspect of its characterisation. For such investigations a "selector" that engages in stereoselective interactions with the peptide analytes is often used. A substantiated knowledge of the underlying molecular recognition mechanism will therefore be helpful in understanding existing and developing new stereoselective analysis systems. After a short introduction concerning the fundamentals of peptide stereoisomers and their biological implications, the stereoselective peptide analysis methods described in the literature are comprehensively reviewed. The characteristics and applications of the employed methods based on various techniques including chromatography (pressure- and electrokinetically driven), capillary electrophoresis, nuclear magnetic resonance spectroscopy and mass spectrometry are discussed. The various selectors that have been utilised to discriminate peptide enantiomers and/or diastereomers are described concurrently. The review concludes with an overview of combinations and comparisons of techniques that have been applied to the analysis of peptide stereoisomers and constitute a trend for further developments.
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Affiliation(s)
- Christoph Czerwenka
- Institute of Analytical Chemistry, University of Vienna, Währingerstrasse 38, 1090 Wien, Austria
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