1
|
Brotin T, Daugey N, Kapitan J, Vanthuyne N, Jean M, Jeanneau E, Buffeteau T. Synthesis and Chiroptical Properties of a Chiral Isotopologue of syn-Cryptophane-B. J Org Chem 2023; 88:4829-4832. [PMID: 36940313 DOI: 10.1021/acs.joc.2c03101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023]
Abstract
We report the synthesis and absolute configuration (AC) of a chiral isotopologue of syn-cryptophane-B. Low chiral signatures were measured by polarimetry and electronic circular dichroism, whereas most significant chiroptical effects were observed by vibrational circular dichroism (VCD) and Raman optical activity (ROA). The comparison of experimental VCD and ROA spectra with those predicted by DFT calculations allows the determination of the AC of the two enantiomers as (-)589-MP-syn-2 and (+)589-PM-syn-2.
Collapse
Affiliation(s)
- Thierry Brotin
- ENSL, UMR 5182-CNRS, Laboratoire de Chimie, 46 Allée d'Italie, 69364 Lyon, France
| | - Nicolas Daugey
- Institut des Sciences Moléculaires (UMR 5255-CNRS), Université de Bordeaux, 351 Cours de la Libération, 33405 Talence, France
| | - Josef Kapitan
- Department of Optics, Palacký University Olomouc, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - Nicolas Vanthuyne
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 Marseille, France
| | - Marion Jean
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 Marseille, France
| | - Erwann Jeanneau
- Centre de Diffractométrie Henri Longchambon Université de Lyon 1, 5 rue la Doua 69100 Villeurbanne, France
| | - Thierry Buffeteau
- Institut des Sciences Moléculaires (UMR 5255-CNRS), Université de Bordeaux, 351 Cours de la Libération, 33405 Talence, France
| |
Collapse
|
2
|
Doll M, Berthault P, Léonce E, Boutin C, Jeanneau E, Brotin T, De Rycke N. Study of syn and anti Xenon-Cryptophanes Complexes Decorated with Aromatic Amine Groups: Chemical Platforms for Accessing New Cryptophanes. J Org Chem 2022; 87:2912-2920. [PMID: 35080182 DOI: 10.1021/acs.joc.1c02774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the synthesis of C3-symmetric cryptophanes decorated with three aromatic amine groups on the same CTB cap and their interaction with xenon. The relative stereochemistry of these two stereoisomers syn and anti was assessed thanks to the determination of the X-ray structure of an intermediate compound. As previously observed with the tris-aza-cryptophanes analogs anti-1 and syn-2 (J. Org. Chem. 2021, 86, 11, 7648-7658), both compounds anti-5 and syn-6 show a slow in-out exchange dynamics of xenon at 11.7 T. Our work supports the idea that the presence of nitrogen atoms grafted directly onto the cryptophane backbone has a strong impact on the in-out exchange dynamics of xenon whatever their stereochemistry. This result contrasts with the case of other cryptophanes decorated solely with methoxy substituents. Finally, we demonstrate that these new derivatives can be used to design new anti/syn cryptophanes bearing suitable ligands in order to constitute potent 129Xe NMR-based sensors. An example is reported here with the synthesis of the tris-iodo derivatives anti-13 and syn-14 from compounds anti-5 and syn-6.
Collapse
Affiliation(s)
- Martin Doll
- Laboratoire de Chimie, Université de Lyon, ENS de Lyon, CNRS UMR 5182, F69342 Lyon, France
| | - Patrick Berthault
- NIMBE, CEA, CNRS, Université de Paris Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
| | - Estelle Léonce
- NIMBE, CEA, CNRS, Université de Paris Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
| | - Céline Boutin
- NIMBE, CEA, CNRS, Université de Paris Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
| | - Erwann Jeanneau
- Centre de Diffractométrie Henri Longchambon, Université de Lyon 1, 5 rue la Doua, 69100 Villeurbanne, France
| | - Thierry Brotin
- Laboratoire de Chimie, Université de Lyon, ENS de Lyon, CNRS UMR 5182, F69342 Lyon, France
| | - Nicolas De Rycke
- Laboratoire de Chimie, Université de Lyon, ENS de Lyon, CNRS UMR 5182, F69342 Lyon, France
| |
Collapse
|
3
|
Baydoun O, Buffeteau T, Brotin T. Enantiopure cryptophane derivatives: Synthesis and chiroptical properties. Chirality 2021; 33:562-596. [PMID: 34464474 DOI: 10.1002/chir.23347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 01/30/2023]
Abstract
This review addresses the synthesis of enantiopure cryptophane and the study of their chiroptical properties. Cryptophane derivatives represent an important class of macrocyclic compounds that can bind a large range of species in solution under different conditions. The overwhelming majority of these host molecules is chiral, and their chiroptical properties have been thoroughly investigated. The first part of this review is dedicated to the optical resolution and the synthesis of enantiopure cryptophane derivatives. In a second part, the study of the chiroptical properties of these molecular hosts by different techniques such as electronic and vibrational circular dichroism and Raman optical activity is detailed. These techniques allow the determination of the absolute configuration of cryptophane derivatives and provide useful information about their conformation in different conditions.
Collapse
Affiliation(s)
- Orsola Baydoun
- Laboratoire de Chimie, Ens de Lyon, CNRS UMR 5182, Lyon, France
| | - Thierry Buffeteau
- Institut des Sciences Moléculaires, CNRS UMR 5255, Bordeaux University, Talence, France
| | - Thierry Brotin
- Laboratoire de Chimie, Ens de Lyon, CNRS UMR 5182, Lyon, France
| |
Collapse
|
4
|
Szyszka Ł, Górecki M, Cmoch P, Jarosz S. Fluorescent Molecular Cages with Sucrose and Cyclotriveratrylene Units for the Selective Recognition of Choline and Acetylcholine. J Org Chem 2021; 86:5129-5141. [PMID: 33710904 PMCID: PMC8041319 DOI: 10.1021/acs.joc.1c00019] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
The synthesis of
four fluorescent diastereoisomeric molecular cages
containing cyclotriveratrylene and sucrose moieties connected via the naphthalene linkers is reported. These diastereoisomers
were found to be selective and efficient receptors for acetylcholine
and choline. Compound P-5a has a better
affinity for choline over acetylcholine, while cage M-5a exhibits a higher association constant for acetylcholine
over choline. The highest selectivity value was observed for compound M-5a (KACh/KCh = 3.1). Cages P-5a, P-5b, M-5a, and M-5b were fully characterized
by the advanced NMR techniques, and ECD spectroscopy was supported
by DFT calculations. The binding constants Ka of these receptors were determined by fluorescence titration
experiments in acetonitrile.
Collapse
Affiliation(s)
- Łukasz Szyszka
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw 01-224, Poland
| | - Marcin Górecki
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw 01-224, Poland
| | - Piotr Cmoch
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw 01-224, Poland
| | - Sławomir Jarosz
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw 01-224, Poland
| |
Collapse
|
5
|
Szyszka Ł, Cmoch P, Górecki M, Ceborska M, Potopnyk MA, Jarosz S. Chiral Molecular Cages Based on Cyclotriveratrylene and Sucrose Units Connected with
p
‐Phenylene Linkers. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Łukasz Szyszka
- Institute of Organic Chemistry Polish Academy of Sciences M. Kasprzaka 44/52 01-224 Warsaw Poland
| | - Piotr Cmoch
- Institute of Organic Chemistry Polish Academy of Sciences M. Kasprzaka 44/52 01-224 Warsaw Poland
| | - Marcin Górecki
- Institute of Organic Chemistry Polish Academy of Sciences M. Kasprzaka 44/52 01-224 Warsaw Poland
| | - Magdalena Ceborska
- Institute of Physical Chemistry Polish Academy of Sciences M. Kasprzaka 44/52 01-224 Warsaw Poland
| | - Mykhaylo A. Potopnyk
- Institute of Organic Chemistry Polish Academy of Sciences M. Kasprzaka 44/52 01-224 Warsaw Poland
| | - Sławomir Jarosz
- Institute of Organic Chemistry Polish Academy of Sciences M. Kasprzaka 44/52 01-224 Warsaw Poland
| |
Collapse
|
6
|
Xenon binding by a tight yet adaptive chiral soft capsule. Nat Commun 2020; 11:6257. [PMID: 33288758 PMCID: PMC7721739 DOI: 10.1038/s41467-020-20081-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 11/11/2020] [Indexed: 11/08/2022] Open
Abstract
Xenon binding has attracted interest due to the potential for xenon separation and emerging applications in magnetic resonance imaging. Compared to their covalent counterparts, assembled hosts that are able to effectively bind xenon are rare. Here, we report a tight yet soft chiral macrocycle dimeric capsule for efficient and adaptive xenon binding in both crystal form and solution. The chiral bisurea-bisthiourea macrocycle can be easily synthesized in multi-gram scale. Through assembly, the flexible macrocycles are locked in a bowl-shaped conformation and buckled to each other, wrapping up a tight, completely sealed yet adjustable cavity suitable for xenon, with a very high affinity for an assembled host. A slow-exchange process and drastic spectral changes are observed in both 1H and 129Xe NMR. With the easy synthesis, modification and reversible characteristics, we believe the robust yet adaptive assembly system may find applications in xenon sequestration and magnetic resonance imaging-based biosensing.
Collapse
|
7
|
Jayapaul J, Schröder L. Molecular Sensing with Host Systems for Hyperpolarized 129Xe. Molecules 2020; 25:E4627. [PMID: 33050669 PMCID: PMC7587211 DOI: 10.3390/molecules25204627] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/27/2020] [Accepted: 09/30/2020] [Indexed: 12/12/2022] Open
Abstract
Hyperpolarized noble gases have been used early on in applications for sensitivity enhanced NMR. 129Xe has been explored for various applications because it can be used beyond the gas-driven examination of void spaces. Its solubility in aqueous solutions and its affinity for hydrophobic binding pockets allows "functionalization" through combination with host structures that bind one or multiple gas atoms. Moreover, the transient nature of gas binding in such hosts allows the combination with another signal enhancement technique, namely chemical exchange saturation transfer (CEST). Different systems have been investigated for implementing various types of so-called Xe biosensors where the gas binds to a targeted host to address molecular markers or to sense biophysical parameters. This review summarizes developments in biosensor design and synthesis for achieving molecular sensing with NMR at unprecedented sensitivity. Aspects regarding Xe exchange kinetics and chemical engineering of various classes of hosts for an efficient build-up of the CEST effect will also be discussed as well as the cavity design of host molecules to identify a pool of bound Xe. The concept is presented in the broader context of reporter design with insights from other modalities that are helpful for advancing the field of Xe biosensors.
Collapse
Affiliation(s)
| | - Leif Schröder
- Molecular Imaging, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany;
| |
Collapse
|
8
|
Jayapaul J, Schröder L. Nanoparticle-Based Contrast Agents for 129Xe HyperCEST NMR and MRI Applications. CONTRAST MEDIA & MOLECULAR IMAGING 2019; 2019:9498173. [PMID: 31819739 PMCID: PMC6893250 DOI: 10.1155/2019/9498173] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 10/15/2019] [Indexed: 02/06/2023]
Abstract
Spin hyperpolarization techniques have enabled important advancements in preclinical and clinical MRI applications to overcome the intrinsic low sensitivity of nuclear magnetic resonance. Functionalized xenon biosensors represent one of these approaches. They combine two amplification strategies, namely, spin exchange optical pumping (SEOP) and chemical exchange saturation transfer (CEST). The latter one requires host structures that reversibly bind the hyperpolarized noble gas. Different nanoparticle approaches have been implemented and have enabled molecular MRI with 129Xe at unprecedented sensitivity. This review gives an overview of the Xe biosensor concept, particularly how different nanoparticles address various critical aspects of gas binding and exchange, spectral dispersion for multiplexing, and targeted reporter delivery. As this concept is emerging into preclinical applications, comprehensive sensor design will be indispensable in translating the outstanding sensitivity potential into biomedical molecular imaging applications.
Collapse
Affiliation(s)
- Jabadurai Jayapaul
- Molecular Imaging, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Leif Schröder
- Molecular Imaging, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| |
Collapse
|
9
|
Brotin T, Jeanneau E, Berthault P, Léonce E, Pitrat D, Mulatier JC. Synthesis of Cryptophane-B: Crystal Structure and Study of Its Complex with Xenon. J Org Chem 2018; 83:14465-14471. [DOI: 10.1021/acs.joc.8b02246] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Thierry Brotin
- Laboratoire de Chimie, Univ Lyon, Ecole Normale Supérieure de Lyon, CNRS UMR 5182, Université Lyon 1, 46 allée d’Italie, Lyon F69364, France
| | - Erwann Jeanneau
- Centre de Diffractométrie Henri Longchambon, Université Lyon 1, 5 rue de la Doua, Villeurbanne 69100, France
| | - Patrick Berthault
- NIMBE, CEA, CNRS, Université de Paris Saclay, CEA Saclay, Gif-sur-Yvette 91191, France
| | - Estelle Léonce
- NIMBE, CEA, CNRS, Université de Paris Saclay, CEA Saclay, Gif-sur-Yvette 91191, France
| | - Delphine Pitrat
- Laboratoire de Chimie, Univ Lyon, Ecole Normale Supérieure de Lyon, CNRS UMR 5182, Université Lyon 1, 46 allée d’Italie, Lyon F69364, France
| | - Jean-Christophe Mulatier
- Laboratoire de Chimie, Univ Lyon, Ecole Normale Supérieure de Lyon, CNRS UMR 5182, Université Lyon 1, 46 allée d’Italie, Lyon F69364, France
| |
Collapse
|
10
|
Lefevre S, Simonet R, Pitrat D, Mulatier JC, Vanthuyne N, Jean M, Dutasta JP, Guy L, Martinez A. Closed vs Open-Shell CTV Based Host Compounds: A Direct Comparison. ChemistrySelect 2016. [DOI: 10.1002/slct.201601307] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Sara Lefevre
- Laboratoire de Chimie; École Normale Supérieure de Lyon, CNRS, UCBL; 46, Allée d'Italie, F- 69364 Lyon France
| | - Raphaël Simonet
- Laboratoire de Chimie; École Normale Supérieure de Lyon, CNRS, UCBL; 46, Allée d'Italie, F- 69364 Lyon France
| | - Delphine Pitrat
- Laboratoire de Chimie; École Normale Supérieure de Lyon, CNRS, UCBL; 46, Allée d'Italie, F- 69364 Lyon France
| | - Jean-Christophe Mulatier
- Laboratoire de Chimie; École Normale Supérieure de Lyon, CNRS, UCBL; 46, Allée d'Italie, F- 69364 Lyon France
| | - Nicolas Vanthuyne
- Aix Marseille Univ; CNRS, Centrale Marseille, iSm2; Marseille France
| | - Marion Jean
- Aix Marseille Univ; CNRS, Centrale Marseille, iSm2; Marseille France
| | - Jean-Pierre Dutasta
- Laboratoire de Chimie; École Normale Supérieure de Lyon, CNRS, UCBL; 46, Allée d'Italie, F- 69364 Lyon France
| | - Laure Guy
- Laboratoire de Chimie; École Normale Supérieure de Lyon, CNRS, UCBL; 46, Allée d'Italie, F- 69364 Lyon France
| | | |
Collapse
|
11
|
Lefevre S, Héloin A, Pitrat D, Mulatier JC, Vanthuyne N, Jean M, Dutasta JP, Guy L, Martinez A. Cyclotriveratrylene-BINOL-Based Host Compounds: Synthesis, Absolute Configuration Assignment, and Recognition Properties. J Org Chem 2016; 81:3199-205. [DOI: 10.1021/acs.joc.6b00159] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Sara Lefevre
- Laboratoire
de Chimie, École Normale Supérieure de Lyon, CNRS, UCBL 46, Allée
d’Italie, F-69364 Lyon, France
| | - Alexandre Héloin
- Laboratoire
de Chimie, École Normale Supérieure de Lyon, CNRS, UCBL 46, Allée
d’Italie, F-69364 Lyon, France
| | - Delphine Pitrat
- Laboratoire
de Chimie, École Normale Supérieure de Lyon, CNRS, UCBL 46, Allée
d’Italie, F-69364 Lyon, France
| | - Jean-Christophe Mulatier
- Laboratoire
de Chimie, École Normale Supérieure de Lyon, CNRS, UCBL 46, Allée
d’Italie, F-69364 Lyon, France
| | - Nicolas Vanthuyne
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 Marseille, France
| | - Marion Jean
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 Marseille, France
| | - Jean-Pierre Dutasta
- Laboratoire
de Chimie, École Normale Supérieure de Lyon, CNRS, UCBL 46, Allée
d’Italie, F-69364 Lyon, France
| | - Laure Guy
- Laboratoire
de Chimie, École Normale Supérieure de Lyon, CNRS, UCBL 46, Allée
d’Italie, F-69364 Lyon, France
| | - Alexandre Martinez
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 Marseille, France
| |
Collapse
|
12
|
Lefevre S, Zhang D, Godart E, Jean M, Vanthuyne N, Mulatier JC, Dutasta JP, Guy L, Martinez A. Large-Scale Synthesis of Enantiopure Molecular Cages: Chiroptical and Recognition Properties. Chemistry 2016; 22:2068-2074. [DOI: 10.1002/chem.201504108] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Sara Lefevre
- Laboratoire de Chimie; École Normale Supérieure de Lyon; CNRS, UCBL; 46, Allée d'Italie 69364 Lyon France
| | - Dawei Zhang
- Laboratoire de Chimie; École Normale Supérieure de Lyon; CNRS, UCBL; 46, Allée d'Italie 69364 Lyon France
| | - Estelle Godart
- Aix Marseille Université; Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
- Laboratoire de Chimie; École Normale Supérieure de Lyon; CNRS, UCBL; 46, Allée d'Italie 69364 Lyon France
| | - Marion Jean
- Aix Marseille Université; Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Nicolas Vanthuyne
- Aix Marseille Université; Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Jean-Christophe Mulatier
- Laboratoire de Chimie; École Normale Supérieure de Lyon; CNRS, UCBL; 46, Allée d'Italie 69364 Lyon France
| | - Jean-Pierre Dutasta
- Laboratoire de Chimie; École Normale Supérieure de Lyon; CNRS, UCBL; 46, Allée d'Italie 69364 Lyon France
| | - Laure Guy
- Laboratoire de Chimie; École Normale Supérieure de Lyon; CNRS, UCBL; 46, Allée d'Italie 69364 Lyon France
| | - Alexandre Martinez
- Aix Marseille Université; Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
- Laboratoire de Chimie; École Normale Supérieure de Lyon; CNRS, UCBL; 46, Allée d'Italie 69364 Lyon France
| |
Collapse
|
13
|
Brotin T, Daugey N, Vanthuyne N, Jeanneau E, Ducasse L, Buffeteau T. Chiroptical Properties of Cryptophane-223 and -233 Investigated by ECD, VCD, and ROA Spectroscopy. J Phys Chem B 2015; 119:8631-9. [DOI: 10.1021/acs.jpcb.5b04539] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thierry Brotin
- Laboratoire
de Chimie de l’ENS LYON (UMR 5182-CNRS), École Normale Supérieure de Lyon, 46 Allée d’Italie, 69364 Lyon, France
| | - Nicolas Daugey
- Institut
des Sciences Moléculaires (UMR 5255-CNRS), Université de Bordeaux, 351 Cours de la Libération, 33405 Talence, France
| | - Nicolas Vanthuyne
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397, Marseille, France
| | - Erwann Jeanneau
- Centre
de
Diffractométrie Henri Longchambon, Université Lyon 1, 5 rue de La Doua, 69100 Villeurbanne, France
| | - Laurent Ducasse
- Institut
des Sciences Moléculaires (UMR 5255-CNRS), Université de Bordeaux, 351 Cours de la Libération, 33405 Talence, France
| | - Thierry Buffeteau
- Institut
des Sciences Moléculaires (UMR 5255-CNRS), Université de Bordeaux, 351 Cours de la Libération, 33405 Talence, France
| |
Collapse
|
14
|
Abstract
Here we present a "smart" xenon-129 NMR biosensor that undergoes a peptide conformational change and labels cells in acidic environments. To a cryptophane host molecule with high Xe affinity, we conjugated a 30mer EALA-repeat peptide that is α-helical at pH 5.5 and disordered at pH 7.5. The (129)Xe NMR chemical shift at room temperature was strongly pH-dependent (Δδ = 3.4 ppm): δ = 64.2 ppm at pH 7.5 vs δ = 67.6 ppm at pH 5.5, where Trp(peptide)-cryptophane interactions were evidenced by Trp fluorescence quenching. Using hyper-CEST NMR, we probed peptidocryptophane detection limits at low-picomolar (10(-11) M) concentration, which compares favorably to other NMR pH reporters at 10(-2)-10(-3) M. Finally, in biosensor-HeLa cell solutions, peptide-cell membrane insertion at pH 5.5 generated a 13.4 ppm downfield cryptophane-(129)Xe NMR chemical shift relative to pH 7.5 studies. This highlights new uses for (129)Xe as an ultrasensitive probe of peptide structure and function, along with potential applications for pH-dependent cell labeling in cancer diagnosis and treatment.
Collapse
Affiliation(s)
- Brittany A. Riggle
- Department of Chemistry, University of Pennsylvania, 231 South 34 Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Yanfei Wang
- Department of Chemistry, University of Pennsylvania, 231 South 34 Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Ivan J. Dmochowski
- Department of Chemistry, University of Pennsylvania, 231 South 34 Street, Philadelphia, Pennsylvania 19104-6323, United States
| |
Collapse
|
15
|
Chatelet B, Joucla L, Padula D, Bari LD, Pilet G, Robert V, Dufaud V, Dutasta JP, Martinez A. Remote Control of Helical Chirality: Thermodynamic Resolution of a Racemic Mixture of CTV Units by Remote Stereogenic Centers. Org Lett 2015; 17:500-3. [DOI: 10.1021/ol5035194] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Bastien Chatelet
- Laboratoire
de Chimie, École Normale Supérieure de Lyon, CNRS, UCBL, 46, Allée d’Italie, F-69364 Lyon, France
| | - Lionel Joucla
- Laboratoire
de Chimie, École Normale Supérieure de Lyon, CNRS, UCBL, 46, Allée d’Italie, F-69364 Lyon, France
| | - Daniele Padula
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo
náměstí 2, 16610 Prague, Czech Republic
| | - Lorenzo Di Bari
- Dipartimento
di Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento
35, I-56126 Pisa, Italy
| | - Guillaume Pilet
- Laboratoire
des Multimatériaux et Interfaces, CNRS, Université Claude Bernard Lyon 1, 2 Avenue Grignard, F-69622 Villeurbanne, France
| | - Vincent Robert
- Laboratoire
de Chimie Quantique Institut de Chimie, UMR CNRS 7177, Université de Strasbourg, 4, rue Blaise Pascal, F-67070 Strasbourg, France
| | - Véronique Dufaud
- Université
de
Lyon, Laboratoire de Chimie, Catalyse, Polymère,
Procédés (C2P2), CNRS, Université Claude Bernard Lyon1, CPE Lyon, 43 Bd du 11 novembre 1918, F-69616 Villeurbanne Cedex, France
| | - Jean-Pierre Dutasta
- Laboratoire
de Chimie, École Normale Supérieure de Lyon, CNRS, UCBL, 46, Allée d’Italie, F-69364 Lyon, France
| | - Alexandre Martinez
- Laboratoire
de Chimie, École Normale Supérieure de Lyon, CNRS, UCBL, 46, Allée d’Italie, F-69364 Lyon, France
- Equipe
Chirosciences, Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR
7313, 13397 Marseille, France
| |
Collapse
|
16
|
Khan N, Riggle BA, Seward GK, Bai Y, Dmochowski IJ. Cryptophane-folate biosensor for (129)xe NMR. Bioconjug Chem 2015; 26:101-9. [PMID: 25438187 PMCID: PMC4306503 DOI: 10.1021/bc5005526] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Indexed: 12/27/2022]
Abstract
Folate-conjugated cryptophane was developed for targeting cryptophane to membrane-bound folate receptors that are overexpressed in many human cancers. The cryptophane biosensor was synthesized in 20 nonlinear steps, which included functionalization with folate recognition moiety, solubilizing peptide, and Cy3 fluorophore. Hyperpolarized (129)Xe NMR studies confirmed xenon binding to the folate-conjugated cryptophane. Cellular internalization of biosensor was monitored by confocal laser scanning microscopy and quantified by flow cytometry. Competitive blocking studies confirmed cryptophane endocytosis through a folate receptor-mediated pathway. Flow cytometry revealed 10-fold higher cellular internalization in KB cancer cells overexpressing folate receptors compared to HT-1080 cells with normal folate receptor expression. The biosensor was determined to be nontoxic in HT-1080 and KB cells by MTT assay at low micromolar concentrations typically used for hyperpolarized (129)Xe NMR experiments.
Collapse
Affiliation(s)
- Najat
S. Khan
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Brittany A. Riggle
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Garry K. Seward
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Yubin Bai
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Ivan J. Dmochowski
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
17
|
Taratula O, Bai Y, D'Antonio EL, Dmochowski IJ. Enantiopure Cryptophane- 129Xe Nuclear Magnetic Resonance Biosensors Targeting Carbonic Anhydrase. Supramol Chem 2014; 27:65-71. [PMID: 25506191 DOI: 10.1080/10610278.2014.906601] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The (+) and (-) enantiomers for a cryptophane-7-bond-linker-benzenesulfonamide biosensor (C7B) were synthesized and their chirality confirmed by electronic circular dichroism (ECD) spectroscopy. Biosensor binding to carbonic anhydrase II (CAII) was characterized for both enantiomers by hyperpolarized (hp) 129Xe NMR spectroscopy. Our previous study of the racemic (+/-) C7B biosensor-CAII complex [Chambers, et al., J. Am. Chem. Soc. 2009, 131, 563-569], identified two "bound" 129Xe@C7B peaks by hp 129Xe NMR (at 71 and 67 ppm, relative to "free" biosensor at 64 ppm), which led to the initial hypothesis that (+) and (-) enantiomers produce diastereomeric peaks when coordinated to Zn2+ at the chiral CAII active site. Unexpectedly, the single enantiomers complexed with CAII also identified two "bound" 129Xe@C7B peaks: (+) 72, 68 ppm and (-) 68, 67 ppm. These results are consistent with X-ray crystallographic evidence for benzenesulfonamide inhibitors occupying a second site near the CAII surface. As illustrated by our studies of this model protein-ligand interaction, hp 129Xe NMR spectroscopy can be useful for identifying supramolecular assemblies in solution.
Collapse
Affiliation(s)
- Olena Taratula
- Department of Chemistry, University of Pennsylvania, 231 South 34 St., Philadelphia, PA 19104
| | - Yubin Bai
- Department of Chemistry, University of Pennsylvania, 231 South 34 St., Philadelphia, PA 19104
| | - Edward L D'Antonio
- Department of Chemistry, University of Pennsylvania, 231 South 34 St., Philadelphia, PA 19104
| | - Ivan J Dmochowski
- Department of Chemistry, University of Pennsylvania, 231 South 34 St., Philadelphia, PA 19104
| |
Collapse
|
18
|
Delacour L, Kotera N, Traoré T, Garcia-Argote S, Puente C, Leteurtre F, Gravel E, Tassali N, Boutin C, Léonce E, Boulard Y, Berthault P, Rousseau B. “Clickable” Hydrosoluble PEGylated Cryptophane as a Universal Platform for129Xe Magnetic Resonance Imaging Biosensors. Chemistry 2013; 19:6089-93. [DOI: 10.1002/chem.201204218] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 01/30/2013] [Indexed: 11/08/2022]
|
19
|
Brotin T, Guy L, Martinez A, Dutasta JP. Enantiopure supramolecular cages: synthesis and chiral recognition properties. Top Curr Chem (Cham) 2013; 341:177-230. [PMID: 24173672 DOI: 10.1007/128_2013_487] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Enantiopure compounds are ubiquitous in the chemical sciences and present a particular interest in the field of molecular recognition and host-guest systems. Indeed, chiral molecular receptors are at the basis of numerous biological recognition processes and have important implications in biochemistry or pharmacology. Chemists have been investigating this field for several decades, which has led to the development of the synthesis of chiral hosts, their enantiomeric differentiation, and the studies of their recognition properties towards important and bio-relevant chiral guest substrates. The design of molecular cages is a rather difficult task that is even more demanding when enantiopure molecules are required. In this review we chose to present the main families of synthetic organic supramolecular cages that have been developed, whose structures contain stereogenic centers or present an inherent chirality, giving rise to chiral supramolecular cages. Particular attention is given to obtaining enantiopure compounds. Their recognition properties are also underlined. A last important aspect of the review is to present how chiroptical spectroscopies can be used to characterize the recognition phenomena displayed by supramolecular cages.
Collapse
Affiliation(s)
- Thierry Brotin
- Laboratoire de Chimie, CNRS, ENS-Lyon, Université de Lyon, 46 Allée d'Italie, 69364, Lyon, France
| | | | | | | |
Collapse
|
20
|
Little MA, Halcrow MA, Hardie MJ. A bis(disulfide)-linked offset cryptophane. Chem Commun (Camb) 2013; 49:1512-4. [DOI: 10.1039/c3cc38768b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|