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Silvère Gade I, Nyemb JN, Mahamat A, Atchade ADT, Talla E, Laurent S, Henoumont C, Venditti A. A novel pentacyclic triterpene acid from the stem barks of Combretum fragrans F. Hoffm (Combretaceae). Nat Prod Res 2024; 38:1294-1301. [PMID: 36308287 DOI: 10.1080/14786419.2022.2139697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/23/2022] [Accepted: 10/14/2022] [Indexed: 10/31/2022]
Abstract
A phytochemical study was carried out on stem bark of Combretum fragrans F. Hoffm., a medicinal plant belonging to the Combretaceae family and used traditionally in the treatment of various ailments. Column chromatography separation on silica gel of the crude methanol extract from stem barks of C. fragrans led to the isolation of a new pentacyclic triterpene acid, with a 3,6-epoxide bridge and trivially named as fragransinic acid (1), along with four known compounds: betulin (2), betulinic acid (3), bellericagenin B (4) and a mixture of β-sitosterol (5) and stigmasterol (6). Structures were elucidated by extensive spectroscopic analyses including 1D and 2D NMR, mass spectrometry as well as by comparison with literature data. The above compounds were isolated for the first time from C. adenogonium. Implications for chemosystematics and traditional medicine were briefly discussed.
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Affiliation(s)
- Isaac Silvère Gade
- Department of Organic Chemistry, Faculty of Science, The University of Yaounde I, Yaounde, Cameroon
| | - Jean Noël Nyemb
- Department of Refining and Petrochemistry, National Advanced School of Mines and Petroleum Industries, The University of Maroua, Kaele, Cameroon
| | - Achi Mahamat
- Department of Organic Chemistry, Faculty of Science, The University of Yaounde I, Yaounde, Cameroon
| | - Alex De Théodore Atchade
- Department of Organic Chemistry, Faculty of Science, The University of Yaounde I, Yaounde, Cameroon
| | - Emmanuel Talla
- Department of Chemistry, Faculty of Science, University of Ngaoundere, Ngaoundéré, Cameroon
| | - Sophie Laurent
- Laboratory of NMR and Molecular Imaging, Department of General, Organic Chemistry and Biomedical, University of MONS, Mons, Belgium
| | - Céline Henoumont
- Laboratory of NMR and Molecular Imaging, Department of General, Organic Chemistry and Biomedical, University of MONS, Mons, Belgium
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Matcheme M, Dabolé B, Moussa D, Nyemb JN, Emmanuel T, Laurent S, Henoumont C, Venditti A. Chemical constituents from Cordia myxa L. (Boraginaceae) and their antibacterial activity. Nat Prod Res 2023:1-9. [PMID: 38041628 DOI: 10.1080/14786419.2023.2288928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 11/22/2023] [Indexed: 12/03/2023]
Abstract
Chemical investigation of Cordia myxa L. (Boraginaceae) resulted in the isolation of the following ten known compounds: 1-naphthaleneacetic-5-carboxy-1,2,3,4,4a,7,8,8a-octahydro-1,2,4a-trimethyl-[1S-(1α,2β, 4a,8aα)]-acid (1), hexacosanoate-1-glyceryl (2), 3β-urs-12,20(30)-diene-27,28-dioic acid (3), 3β-D-glucopyranosylurs-12,20(30)-diene-27,28-dioic acid (4), stigmasterol (5), stigmasterol-3-O-β-D-glucopyranoside (6), oleanolic-acid (7), 3-O-acetyl-oleanolic acid (8), betulin (9) and spinasterol-3β-O-D-glucopyranoside (10). The isolated compounds were characterised by using spectroscopic methods, 1D and 2D NMR, mass spectroscopy (ESI-MS) and by comparison with the literature data. To the best of our knowledge, compounds 1, 3, 4, 8 and 10 were isolated for the first time from the Cordia genus. This result improves the chemotaxonomy knowledge of the Cordia genus. The antibacterial activities were performed by the Muller-Hinton agar diffusion method. The antibacterial activities were studied on Salmonella typhi, Staphylococcus aureus, Vibrio cholerae, Pseudomonas aeruginosa and Escherichia coli ATCC 25922. Compounds 8 and 9, at 20.0 mg/mL resulted to be effective antimicrobial against E. coli, V. cholerae and P. aeruginosa.
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Affiliation(s)
- Matthieu Matcheme
- Department of Chemistry, Faculty of Science, University of Maroua, Maroua, Cameroon
| | - Bernard Dabolé
- Department of Chemistry, Faculty of Science, University of Maroua, Maroua, Cameroon
- Department of Refining and Petrochemistry, National Advanced School of Mines and Petroleum Industries, University of Maroua, Kaélé, Cameroon
| | - Djaouda Moussa
- Department of Life and Earth Sciences, Higher Teachers' Training College, University of Maroua, Maroua, Cameroun
| | - Jean Noël Nyemb
- Department of Refining and Petrochemistry, National Advanced School of Mines and Petroleum Industries, University of Maroua, Kaélé, Cameroon
| | - Talla Emmanuel
- Department of Chemistry, Faculty of Science, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, Faculty of Medicine and Pharmacy, University of Mons, NMR and Molecular Imaging Laboratory, Mons, Belgium
| | - Céline Henoumont
- Department of General, Organic and Biomedical Chemistry, Faculty of Medicine and Pharmacy, University of Mons, NMR and Molecular Imaging Laboratory, Mons, Belgium
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Tchuente Djoko C, Tamfu AN, Nyemb JN, Toko Feunaing R, Laurent S, Henoumont C, Talla E, Venditti A. In vitro α-glucosidase inhibitory activity of isolated compounds and semisynthetic derivative from aerial parts of Erythrina senegalensis DC. Nat Prod Res 2023; 37:3994-4003. [PMID: 36647748 DOI: 10.1080/14786419.2023.2167205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 01/04/2023] [Indexed: 01/18/2023]
Abstract
The current study was conducted to isolate the phytoconstituents from Erythrina senegalensis leaves and stem bark and evaluate their inhibitory activity against α-glucosidase, digestive enzyme related to diabetes mellitus. Phytochemical investigation of the leaves resulted in the isolation of three saponins (3-5), two triterpenoids (7 and 8) and two steroids (10a and 10b) as inseparable mixture, while one saponin (6), one triterpenoid (9) and one mixture of two cinnamates (2a and 2b) were isolated from the stem bark. Except for compounds 2 b, 7, 8, 10a and 10 b all the isolated compounds are reported here for the first time from the genus Erythrina. Acetylation of the mixture of two cinnamates (2a and 2b) led to a new diester derivative (1) trivially called erythrinamate. The extracts and pure compounds (3, 4, 6) showed good α-glucosidase inhibitory activity compared to the standard drug acarbose. The findings suggest that saponins of E. senegalensis could be used to develop potential anti-hyperglycemic drugs.
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Affiliation(s)
- Cyrille Tchuente Djoko
- Department of Chemistry, Faculty of Science, University of Ngaoundere, Ngaoundere, Cameroon
| | - Alfred Ngenge Tamfu
- Department of Chemical Engineering, School of Chemical Engineering and Mineral Industries, University of Ngaoundere, Ngaoundere, Cameroon
| | - Jean Noël Nyemb
- Department of Refining and Petrochemistry, National Advanced School of Mines and Petroleum Industries, The University of Maroua, Kaele, Cameroon
| | - Romeo Toko Feunaing
- Department of Chemistry, Faculty of Science, University of Ngaoundere, Ngaoundere, Cameroon
| | - Sophie Laurent
- Laboratory of NMR and Molecular Imaging, Department of General, Organic and Biomedical Chemistry, University of Mons, Mons, Belgium
| | - Céline Henoumont
- Laboratory of NMR and Molecular Imaging, Department of General, Organic and Biomedical Chemistry, University of Mons, Mons, Belgium
| | - Emmanuel Talla
- Department of Chemistry, Faculty of Science, University of Ngaoundere, Ngaoundere, Cameroon
- Department of Chemical Engineering, School of Chemical Engineering and Mineral Industries, University of Ngaoundere, Ngaoundere, Cameroon
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Henoumont C, Devreux M, Laurent S. Mn-Based MRI Contrast Agents: An Overview. Molecules 2023; 28:7275. [PMID: 37959694 PMCID: PMC10648041 DOI: 10.3390/molecules28217275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
MRI contrast agents are required in the clinic to detect some pathologies, such as cancers. Nevertheless, at the moment, only small extracellular and non-specific gadolinium complexes are available for clinicians. Moreover, safety issues have recently emerged concerning the use of gadolinium complexes; hence, alternatives are urgently needed. Manganese-based MRI contrast agents could be one of these alternatives and increasing numbers of studies are available in the literature. This review aims at synthesizing all the research, from small Mn complexes to nanoparticular agents, including theranostic agents, to highlight all the efforts already made by the scientific community to obtain highly efficient agents but also evidence of the weaknesses of the developed systems.
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Affiliation(s)
- Céline Henoumont
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry, University of Mons, 19 Avenue Maistriau, 7000 Mons, Belgium; (C.H.)
| | - Marie Devreux
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry, University of Mons, 19 Avenue Maistriau, 7000 Mons, Belgium; (C.H.)
| | - Sophie Laurent
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry, University of Mons, 19 Avenue Maistriau, 7000 Mons, Belgium; (C.H.)
- Center for Microscopy and Molecular Imaging (CMMI), 8 Rue Adrienne Boland, 6041 Gosselies, Belgium
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Freis B, Ramirez MDLA, Kiefer C, Harlepp S, Iacovita C, Henoumont C, Affolter-Zbaraszczuk C, Meyer F, Mertz D, Boos A, Tasso M, Furgiuele S, Journe F, Saussez S, Bégin-Colin S, Laurent S. Effect of the Size and Shape of Dendronized Iron Oxide Nanoparticles Bearing a Targeting Ligand on MRI, Magnetic Hyperthermia, and Photothermia Properties—From Suspension to In Vitro Studies. Pharmaceutics 2023; 15:pharmaceutics15041104. [PMID: 37111590 PMCID: PMC10143744 DOI: 10.3390/pharmaceutics15041104] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/14/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
Functionalized iron oxide nanoparticles (IONPs) are increasingly being designed as a theranostic nanoplatform combining specific targeting, diagnosis by magnetic resonance imaging (MRI), and multimodal therapy by hyperthermia. The effect of the size and the shape of IONPs is of tremendous importance to develop theranostic nanoobjects displaying efficient MRI contrast agents and hyperthermia agent via the combination of magnetic hyperthermia (MH) and/or photothermia (PTT). Another key parameter is that the amount of accumulation of IONPs in cancerous cells is sufficiently high, which often requires the grafting of specific targeting ligands (TLs). Herein, IONPs with nanoplate and nanocube shapes, which are promising to combine magnetic hyperthermia (MH) and photothermia (PTT), were synthesized by the thermal decomposition method and coated with a designed dendron molecule to ensure their biocompatibility and colloidal stability in suspension. Then, the efficiency of these dendronized IONPs as contrast agents (CAs) for MRI and their ability to heat via MH or PTT were investigated. The 22 nm nanospheres and the 19 nm nanocubes presented the most promising theranostic properties (respectively, r2 = 416 s−1·mM−1, SARMH = 580 W·g−1, SARPTT = 800 W·g−1; and r2 = 407 s−1·mM−1, SARMH = 899 W·g−1, SARPTT = 300 W·g−1). MH experiments have proven that the heating power mainly originates from Brownian relaxation and that SAR values can remain high if IONPs are prealigned with a magnet. This raises hope that heating will maintain efficient even in a confined environment, such as in cells or in tumors. Preliminary in vitro MH and PTT experiments have shown the promising effect of the cubic shaped IONPs, even though the experiments should be repeated with an improved set-up. Finally, the grafting of a specific peptide (P22) as a TL for head and neck cancers (HNCs) has shown the positive impact of the TL to enhance IONP accumulation in cells.
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Leon-Chaviano S, Kiseleva M, Legros P, Collin S, Lescot T, Henoumont C, Gossuin Y, Laurent S, Mayrand D, Fradette J, Bégin-Drolet A, Ruel J, Fortin MA. A Nanoparticle Ink Allowing the High Precision Visualization of Tissue Engineered Scaffolds by MRI. Small 2023:e2206644. [PMID: 36965146 DOI: 10.1002/smll.202206644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/29/2022] [Indexed: 06/18/2023]
Abstract
Hydrogels are widely used as cell scaffolds in several biomedical applications. Once implanted in vivo, cell scaffolds must often be visualized, and monitored overtime. However, cell scaffolds appear poorly contrasted in most biomedical imaging modalities such as magnetic resonance imaging (MRI). MRI is the imaging technique of choice for high-resolution visualization of low-density, water-rich tissues. Attempts to enhance hydrogel contrast in MRI are performed with "negative" contrast agents that produce several image artifacts impeding the delineation of the implant's contours. In this study, a magnetic ink based on ultra-small iron oxide nanoparticles (USPIONs; <5 nm diameter cores) is developed and integrated into biocompatible alginate hydrogel used in cell scaffolding applications. Relaxometric properties of the magnetic hydrogel are measured, as well as biocompatibility and MR-visibility (T1 -weighted mode; in vitro and in vivo). A 2-week MR follow-up study is performed in the mouse model, demonstrating no image artifacts, and the retention of "positive" contrast overtime, which allows very precise delineation of tissue grafts with MRI. Finally, a 3D-contouring procedure developed to facilitate graft delineation and geometrical conformity assessment is applied on an inverted template alginate pore network. This proof-of-concept establishes the possibility to reveal precisely engineered hydrogel structures using this USPIONs ink high-visibility approach.
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Affiliation(s)
- Samila Leon-Chaviano
- Centre de Recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CR CHUQ), Axe Médecine Régénératrice, Quebec City, Québec, G1L 3L5, Canada
- Département de Génie des Mines, de la Métallurgie et des Matériaux, Université Laval, Quebec City, Québec, G1V 0A6, Canada
| | - Mariia Kiseleva
- Centre de Recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CR CHUQ), Axe Médecine Régénératrice, Quebec City, Québec, G1L 3L5, Canada
- Département de Génie des Mines, de la Métallurgie et des Matériaux, Université Laval, Quebec City, Québec, G1V 0A6, Canada
| | - Philippe Legros
- Centre de Recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CR CHUQ), Axe Médecine Régénératrice, Quebec City, Québec, G1L 3L5, Canada
- Département de Génie des Mines, de la Métallurgie et des Matériaux, Université Laval, Quebec City, Québec, G1V 0A6, Canada
| | - Simon Collin
- Département de Génie Mécanique, Université Laval, Quebec City, Québec, G1V 0A6, Canada
| | - Théophraste Lescot
- Centre de Recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CR CHUQ), Axe Médecine Régénératrice, Quebec City, Québec, G1L 3L5, Canada
- Département de Génie des Mines, de la Métallurgie et des Matériaux, Université Laval, Quebec City, Québec, G1V 0A6, Canada
| | - Céline Henoumont
- Département de Chimie Générale, Organique et Biomédicale, Université de Mons, Mons, 7000, Belgium
| | - Yves Gossuin
- Service de Physique Biomédicale, Université de Mons, Mons, 7000, Belgium
| | - Sophie Laurent
- Département de Chimie Générale, Organique et Biomédicale, Université de Mons, Mons, 7000, Belgium
| | - Dominique Mayrand
- Centre de Recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CR CHUQ), Axe Médecine Régénératrice, Quebec City, Québec, G1L 3L5, Canada
- Département de Chirurgie, Faculté de Médecine, Université Laval, Quebec City, Québec, G1V 0A6, Canada
| | - Julie Fradette
- Centre de Recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CR CHUQ), Axe Médecine Régénératrice, Quebec City, Québec, G1L 3L5, Canada
- Département de Chirurgie, Faculté de Médecine, Université Laval, Quebec City, Québec, G1V 0A6, Canada
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, 1401, 18e rue, Quebec City, Québec, G1J 1Z4, Canada
| | - André Bégin-Drolet
- Département de Génie Mécanique, Université Laval, Quebec City, Québec, G1V 0A6, Canada
| | - Jean Ruel
- Département de Génie Mécanique, Université Laval, Quebec City, Québec, G1V 0A6, Canada
| | - Marc-André Fortin
- Centre de Recherche du Centre Hospitalier Universitaire de Québec - Université Laval (CR CHUQ), Axe Médecine Régénératrice, Quebec City, Québec, G1L 3L5, Canada
- Département de Génie des Mines, de la Métallurgie et des Matériaux, Université Laval, Quebec City, Québec, G1V 0A6, Canada
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Freis B, Ramírez MDLÁ, Furgiuele S, Journe F, Cheignon C, Charbonnière LJ, Henoumont C, Kiefer C, Mertz D, Affolter-Zbaraszczuk C, Meyer F, Saussez S, Laurent S, Tasso M, Bégin-Colin S. Bioconjugation studies of an EGF-R targeting ligand on dendronized iron oxide nanoparticles to target head and neck cancer cells. Int J Pharm 2023; 635:122654. [PMID: 36720449 DOI: 10.1016/j.ijpharm.2023.122654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023]
Abstract
A major challenge in nanomedicine is designing nanoplatforms (NPFs) to selectively target abnormal cells to ensure early diagnosis and targeted therapy. Among developed NPFs, iron oxide nanoparticles (IONPs) are good MRI contrast agents and can be used for therapy by hyperthermia and as radio-sensitizing agents. Active targeting is a promising method for selective IONPs accumulation in cancer tissues and is generally performed by using targeting ligands (TL). Here, a TL specific for the epidermal growth factor receptor (EGFR) is bound to the surface of dendronized IONPs to produce nanostructures able to specifically recognize EGFR-positive FaDu and 93-Vu head and neck cancer cell lines. Several parameters were optimized to ensure a high coupling yield and to adequately quantify the amount of TL per nanoparticle. Nanostructures with variable amounts of TL on the surface were produced and evaluated for their potential to specifically target and be thereafter internalized by cells. Compared to the bare NPs, the presence of the TL at the surface was shown to be effective to enhance their internalization and to play a role in the total amount of iron present per cell.
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Affiliation(s)
- Barbara Freis
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux, UMR CNRS-UdS 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France; Laboratoire de NMR et d'imagerie moléculaire, Université de Mons, Avenue Maistriau 19, 7000 Mons, Belgium
| | - María De Los Ángeles Ramírez
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux, UMR CNRS-UdS 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France
| | - Sonia Furgiuele
- Department of Human Anatomy and Experimental Oncology, Faculty of Medicine, Research Institute for Health Sciences and Technology, University of Mons (UMONS), Avenue du Champ de Mars, 8, 7000 Mons, Belgium
| | - Fabrice Journe
- Department of Human Anatomy and Experimental Oncology, Faculty of Medicine, Research Institute for Health Sciences and Technology, University of Mons (UMONS), Avenue du Champ de Mars, 8, 7000 Mons, Belgium
| | - Clémence Cheignon
- Université de Strasbourg, CNRS, Institut Pluridisciplinaire Hubert Curien, UMR 7178, 25, rue Becquerel, 67087 Strasbourg, France
| | - Loïc J Charbonnière
- Université de Strasbourg, CNRS, Institut Pluridisciplinaire Hubert Curien, UMR 7178, 25, rue Becquerel, 67087 Strasbourg, France
| | - Céline Henoumont
- Laboratoire de NMR et d'imagerie moléculaire, Université de Mons, Avenue Maistriau 19, 7000 Mons, Belgium
| | - Celine Kiefer
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux, UMR CNRS-UdS 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France
| | - Damien Mertz
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux, UMR CNRS-UdS 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France
| | - Christine Affolter-Zbaraszczuk
- Inserm U1121, Centre de recherche en biomédecine de Strasbourg, 1 rue Eugène Boeckel, CS 60026, 67084 Strasbourg Cedex, France
| | - Florent Meyer
- Inserm U1121, Centre de recherche en biomédecine de Strasbourg, 1 rue Eugène Boeckel, CS 60026, 67084 Strasbourg Cedex, France
| | - Sven Saussez
- Department of Human Anatomy and Experimental Oncology, Faculty of Medicine, Research Institute for Health Sciences and Technology, University of Mons (UMONS), Avenue du Champ de Mars, 8, 7000 Mons, Belgium
| | - Sophie Laurent
- Laboratoire de NMR et d'imagerie moléculaire, Université de Mons, Avenue Maistriau 19, 7000 Mons, Belgium
| | - Mariana Tasso
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux, UMR CNRS-UdS 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France; Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET, Diagonal 113 y 64, 1900 La Plata, Argentina
| | - Sylvie Bégin-Colin
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux, UMR CNRS-UdS 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France.
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Gade IS, Chadéneau C, Simo RT, Talla E, Atchade ADT, Seité P, Vannier B, Laurent S, Henoumont C, Kamdje AHN, Muller JM. Euphol from Tapinanthus sp. Induces Apoptosis and Affects Signaling Proteins in Glioblastoma and Prostate Cancer Cells. Asian Pac J Cancer Prev 2022; 23:4205-4212. [PMID: 36580003 PMCID: PMC9971480 DOI: 10.31557/apjcp.2022.23.12.4205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 12/16/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Plants play an important role in cancer therapy. They are source of natural molecules which can induce apoptosis in cancer cells by affecting molecular mechanisms implicated in cancer progression. The MAP Kinase/ERK1/2 and PI3K/AKT signaling pathways are two classical signaling pathways implicated in cancer progression and constitute therapeutic targets against cancer. This study aimed to evaluate the effect of euphol on MAP Kinase/ERK1/2 and PI3K/AKT signaling pathways in glioblastoma and prostate cancer cells. Euphol is a tetracyclique triterpene alcohol isolated from Tapinanthus sp. which is a hemi parasitic plant belonging to Loranthaceae family. METHODS Plant powder was extracted by maceration and euphol was isolated and described using respectively column chromatography separation on silica gel and spectroscopic data. Cytotoxic effect of euphol was evaluated using XTT assay and its effect on MAP Kinase/ERK1/2 and PI3K/AKT protein expression was investigated by Western immunoblot analysis. Apotosis was analyzed by evaluating caspase-3/7 activity. RESULTS Our investigations demonstrated that this compound has an important cytotoxic effect on C6 and U87 MG glioblastoma (GBM) cells and PC-3 prostate cancer cells. Furthermore, euphol-induced apoptosis revealed by elevated caspase 3/7 activity, was correlated with a significant inhibition of MAP kinase/Erk 1/2 and PI3K/Akt signaling pathway in glioblastoma U87 MG cells. The reverse effect was observed in C6 glioblastoma cells, where apoptosis was correlated with a long-lasting activation of Erk 1/2. In PC-3 cells, euphol had no or limited effect on Erk 1/2 and Akt activity. CONCLUSION These results indicate that euphol induces cell death in glioblastoma and prostate cancer cells and regulates significantly Erk1/2 and Akt activity in glioblastoma cells.
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Affiliation(s)
- Isaac Silvère Gade
- Department of Organic Chemistry, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon.
- UFR Fundamental and Applied Sciences, Team Receptors, Regulations, Tumor Cells (2RCT)-EA 3842 CAPTuR, Health-Building Biology Pole. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA 51106, 86073 POITIERS Cedex 9, France.
| | - Corinne Chadéneau
- UFR Fundamental and Applied Sciences, Team Receptors, Regulations, Tumor Cells (2RCT)-EA 3842 CAPTuR, Health-Building Biology Pole. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA 51106, 86073 POITIERS Cedex 9, France.
| | - Richard Tagne Simo
- Department of Biomedical Sciences, University of Ngaoundere, P.O. Box 454 Ngaoundere, Cameroon.
- School of Chemical Engineering and Mineral Industries, University of Ngaoundere, P.O. Box 454 Ngaoundere, Cameroon.
| | - Emmanuel Talla
- School of Chemical Engineering and Mineral Industries, University of Ngaoundere, P.O. Box 454 Ngaoundere, Cameroon.
- Department of Chemistry, University of Ngaoundere, P.O. Box 454 Ngaoundere, Cameroon.
| | | | - Paule Seité
- UFR Fundamental and Applied Sciences, Team Receptors, Regulations, Tumor Cells (2RCT)-EA 3842 CAPTuR, Health-Building Biology Pole. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA 51106, 86073 POITIERS Cedex 9, France.
| | - Brigitte Vannier
- UFR Fundamental and Applied Sciences, Team Receptors, Regulations, Tumor Cells (2RCT)-EA 3842 CAPTuR, Health-Building Biology Pole. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA 51106, 86073 POITIERS Cedex 9, France.
| | - Sophie Laurent
- Laboratory of NMR and Molecular Imaging, Department of General, Organic Chemistry and Biomedical, University of MONS, Mons, Belgium.
| | - Céline Henoumont
- Laboratory of NMR and Molecular Imaging, Department of General, Organic Chemistry and Biomedical, University of MONS, Mons, Belgium.
| | - Armel H Nwabo Kamdje
- Department of Biomedical Sciences, University of Ngaoundere, P.O. Box 454 Ngaoundere, Cameroon.
| | - Jean-Marc Muller
- UFR Fundamental and Applied Sciences, Team Receptors, Regulations, Tumor Cells (2RCT)-EA 3842 CAPTuR, Health-Building Biology Pole. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA 51106, 86073 POITIERS Cedex 9, France.
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9
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Nyemb JN, Tchuenguem RT, Venditti A, Tchinda AT, Henoumont C, Talla E, Laurent S, Iqbal J. Antimicrobial and α-glucosidase inhibitory activities of chemical constituents from Gardenia aqualla (Rubiaceae). Nat Prod Res 2022; 36:6369-6374. [PMID: 35073788 DOI: 10.1080/14786419.2022.2031187] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
An aliphatic alkene namely pentapentacontene (4) was isolated for the first time from a natural source, Gardenia aqualla, along with fourteen other compounds including nonacosanol (1), tetratriacontanol (2), octatriacontanol (3), β-sitosterol (5) and stigmasterol (6), daucosanol (7), ursolic acid (8), uvaol (9), 3β,19α,23β,24α-tetrahydroxyurs-12-en-28-oic acid (10), lupenone (11), oleanolic acid (12), vanillin (13), vanillic acid (14) and D-mannitol (15). α-glucosidase inhibitory assay revealed that MeOH and EtOAc extracts of leaves had the best activity with IC50 of 9.65 and 20.03 µg/ml respectively. All the tested compounds showed dose dependent inhibition of α-glucosidase and some of them were found to be comparable to acarbose. Compound 10 was the most potent with IC50 = 1.72 μM. It also showed the most interesting antibacterial activity, against the isolate strain of S. typhi and P. aeruginosa and also exhibited the most significant antifungal activities against all the tested yeasts.
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Affiliation(s)
- Jean Noël Nyemb
- Department of Refining and Petrochemistry, National Advanced School of Mines and Petroleum Industries, University of Maroua, Kaélé, Cameroon.,Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad, Pakistan
| | | | | | - Alembert Tiabou Tchinda
- Institute of Medical Research and Medicinal Plants Studies (IMPM), Ministry of Scientific Research and Innovation, Yaoundé, Cameroon
| | - Céline Henoumont
- Department of General, Organic and Biomedical Chemistry, Faculty of Medicine and Pharmacy, University of Mons, NMR and Molecular Imaging Laboratory, Mons, Belgium
| | - Emmanuel Talla
- Department of Chemistry, Faculty of Science, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, Faculty of Medicine and Pharmacy, University of Mons, NMR and Molecular Imaging Laboratory, Mons, Belgium
| | - Jamshed Iqbal
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad, Pakistan
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10
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Devreux M, Henoumont C, Dioury F, Boutry S, Vacher O, Elst LV, Port M, Muller RN, Sandre O, Laurent S. Mn 2+ Complexes with Pyclen-Based Derivatives as Contrast Agents for Magnetic Resonance Imaging: Synthesis and Relaxometry Characterization. Inorg Chem 2021; 60:3604-3619. [PMID: 33625836 DOI: 10.1021/acs.inorgchem.0c03120] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Magnetic resonance imaging (MRI) has a leading place in medicine as an imaging tool of high resolution for anatomical studies and diagnosis of diseases, in particular for soft tissues that cannot be accessible by other modalities. Many research works are thus focused on improving the images obtained with MRI. This technique has indeed poor sensitivity, which can be compensated by using a contrast agent (CA). Today, the clinically approved CAs on market are solely based on gadolinium complexes that may induce nephrogenic systemic fibrosis for patients with kidney failure, whereas more recent studies on healthy rats also showed Gd retention in the brain. Consequently, researchers try to elaborate other types of safer MRI CAs like manganese-based complexes. In this context, the synthesis of Mn2+ complexes of four 12-membered pyridine-containing macrocyclic ligands based on the pyclen core was accomplished and described herein. Then, the properties of these Mn(II) complexes were studied by two relaxometric methods, 17O NMR spectroscopy and 1H NMR dispersion profiles. The time of residence (τM) and the number of water molecules (q) present in the inner sphere of coordination were determined by these two experiments. The efficacy of the pyclen-based Mn(II) complexes as MRI CAs was evaluated by proton relaxometry at a magnetic field intensity of 1.41 T near those of most medical MRI scanners (1.5 T). Both the 17O NMR and the nuclear magnetic relaxation dispersion profiles indicated that the four hexadentate ligands prepared herein left one vacant coordination site to accommodate one water molecule, rapidly exchanging, in around 6 ns. Furthermore, it has been shown that the presence of an additional amide bond formed when the paramagnetic complex is conjugated to a molecule of interest does not alter the inner sphere of coordination of Mn, which remains monohydrated. These complexes exhibit r1 relaxivities, large enough to be used as clinical MRI CAs (1.7-3.4 mM-1·s-1, at 1.41 T and 37 °C).
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Affiliation(s)
- Marie Devreux
- General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000 Mons, Belgium.,University of Bordeaux, CNRS, Bordeaux INP, ENSCBP, Laboratory of Organic Polymer Chemistry (LCPO), 33607 Pessac, France
| | - Céline Henoumont
- General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000 Mons, Belgium
| | - Fabienne Dioury
- Conservatoire National des Arts et Métiers (CNAM), GBCM Laboratory, HESAM Université, EA 7528, 2 rue Conté, 75003 Paris,France
| | - Sébastien Boutry
- Center for Microscopy and Molecular Imaging (CMMI), 8 rue Adrienne Bolland, 6041 Charleroi, Belgium
| | - Olivier Vacher
- Conservatoire National des Arts et Métiers (CNAM), GBCM Laboratory, HESAM Université, EA 7528, 2 rue Conté, 75003 Paris,France
| | - Luce Vander Elst
- General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000 Mons, Belgium
| | - Marc Port
- Conservatoire National des Arts et Métiers (CNAM), GBCM Laboratory, HESAM Université, EA 7528, 2 rue Conté, 75003 Paris,France
| | - Robert N Muller
- General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000 Mons, Belgium.,Center for Microscopy and Molecular Imaging (CMMI), 8 rue Adrienne Bolland, 6041 Charleroi, Belgium
| | - Olivier Sandre
- University of Bordeaux, CNRS, Bordeaux INP, ENSCBP, Laboratory of Organic Polymer Chemistry (LCPO), 33607 Pessac, France
| | - Sophie Laurent
- General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000 Mons, Belgium.,Center for Microscopy and Molecular Imaging (CMMI), 8 rue Adrienne Bolland, 6041 Charleroi, Belgium
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11
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Moins S, Henoumont C, De Roover Q, Laurent S, De Winter J, Coulembier O. Accelerating effect of crown ethers on the lactide polymerization catalysed by potassium acetate. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00756d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recent advances in catalysis enriched the toolbox to prepare well-defined polyester materials such as polylactide (PLA).
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Affiliation(s)
- Sébastien Moins
- Laboratory of Polymeric and Composite Materials
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- University of Mons
- 7000 Mons
- Belgium
| | - Céline Henoumont
- General, Organic and Biomedical Chemistry
- NMR and Molecular Imaging Laboratory
- University of Mons
- 7000 Mons
- Belgium
| | - Quentin De Roover
- Laboratory of Polymeric and Composite Materials
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- University of Mons
- 7000 Mons
- Belgium
| | - Sophie Laurent
- General, Organic and Biomedical Chemistry
- NMR and Molecular Imaging Laboratory
- University of Mons
- 7000 Mons
- Belgium
| | - Julien De Winter
- Organic Synthesis and Mass Spectrometry Laboratory (S2MOS)
- Materials Institute
- University of Mons
- 7000 Mons
- Belgium
| | - Olivier Coulembier
- Laboratory of Polymeric and Composite Materials
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- University of Mons
- 7000 Mons
- Belgium
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12
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Dioury F, Callewaert M, Cadiou C, Henoumont C, Molinari M, Laurent S, Portefaix C, Port M, Chuburu F. Pyclen-based Gd complex with ionisable side-chain as a contrastophore for the design of hypersensitive MRI nanoprobes: Synthesis and relaxation studies. Results in Chemistry 2021. [DOI: 10.1016/j.rechem.2021.100237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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13
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Kayo MT, Simo MK, Tagatsing Fotsing M, Talla E, Laurent S, Elst LV, Henoumont C, Yankep E, Alfred Ngenge T, Keumoe R, Atchade ADT, Zeukóo EM, Sameza ML, Roch A, Muller R, Boyom FF, Mbafor JT. Antifungal potential of extracts, fractions and compounds from Uvaria comperei (Annonaceae) and Oxyanthus unilocularis (Rubiaceae). Nat Prod Res 2020; 35:5732-5736. [PMID: 33244992 DOI: 10.1080/14786419.2020.1828409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Phytochemical study of Uvaria comperei afforded an alkaloid, 8,9-dimethoxy-5H-phenanthridin-6-one (1), isolated and characterised (assignment of 1H and 13C NMR) for the first time from a natural source along with two flavonoids, (2S)-5-hydroxy-7,8-dimethoxyflavanone (2) and (2S)-7-hydroxy-5-methoxy-6,8-dimethylflavone (3). Clethric acid (4), oleanoic acid (5), β-sitosterol 3-O-β-D-glucopyranoside (9), β-sitosterol palmitate (6) and a mixture of stigmasterol (7) and β-sitosterol (8) were isolated from Oxyanthus unilocularis. The structures of these compounds were elucidated using modern spectroscopic techniques including1D and 2D Nuclear Magnetic Resonance (NMR) Spectroscopy (1H, 13C, 1H-1H COSY, HSQC, HMBC) and Mass Spectrometry. Some fractions and compounds from Uvaria comperei exhibited good antifungal activity against clinical isolates and standard strains of yeast species of Candida and Cryptococcus genera while extracts from Oxyanthus unilocularis displayed weak antifungal activity. The results obtained show that Uvaria comperei could be a potential source of antifungal drugs.
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Affiliation(s)
- Maurice Taboula Kayo
- Laboratory No. 3 of Organic Chemistry, Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon.,Department of Chemistry, Higher Teacher Training College, University of Bamenda, Bambili, Cameroon
| | - Marguerite Kamdem Simo
- Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon.,Department of Biological Sciences, Faculty of Science, University of Maroua, Maroua, Cameroon
| | - Maurice Tagatsing Fotsing
- Laboratory No. 3 of Organic Chemistry, Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Emmanuel Talla
- Department of Materials Engineering/Chemical Engineering, School of Chemical Engineering and Mineral Industries, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Sophie Laurent
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry, Faculty of Medicine and Pharmacy, University of Mons, Mons, Belgium
| | - Luce Vander Elst
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry, Faculty of Medicine and Pharmacy, University of Mons, Mons, Belgium
| | - Céline Henoumont
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry, Faculty of Medicine and Pharmacy, University of Mons, Mons, Belgium
| | - Emmanuel Yankep
- Laboratory No. 3 of Organic Chemistry, Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Tamfu Alfred Ngenge
- Department of Materials Engineering/Chemical Engineering, School of Chemical Engineering and Mineral Industries, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Rodrigue Keumoe
- Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Alex de Theodore Atchade
- Laboratory No. 3 of Organic Chemistry, Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Elisabeth Menkem Zeukóo
- Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | | | - Alain Roch
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry, Faculty of Medicine and Pharmacy, University of Mons, Mons, Belgium
| | - Robert Muller
- NMR and Molecular Imaging Laboratory, Department of General, Organic and Biomedical Chemistry, Faculty of Medicine and Pharmacy, University of Mons, Mons, Belgium
| | - Fabrice Fekam Boyom
- Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Joseph Tanyi Mbafor
- Laboratory No. 3 of Organic Chemistry, Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
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14
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Mathieu P, Coppel Y, Respaud M, Nguyen QT, Boutry S, Laurent S, Stanicki D, Henoumont C, Novio F, Lorenzo J, Montpeyó D, Amiens C. Silica Coated Iron/Iron Oxide Nanoparticles as a Nano-Platform for T 2 Weighted Magnetic Resonance Imaging. Molecules 2019; 24:E4629. [PMID: 31861222 PMCID: PMC6943426 DOI: 10.3390/molecules24244629] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/13/2019] [Accepted: 12/13/2019] [Indexed: 11/16/2022] Open
Abstract
The growing concern over the toxicity of Gd-based contrast agents used in magnetic resonance imaging (MRI) motivates the search for less toxic and more effective alternatives. Among these alternatives, iron-iron oxide (Fe@FeOx) core-shell architectures have been long recognized as promising MRI contrast agents while limited information on their engineering is available. Here we report the synthesis of 10 nm large Fe@FeOx nanoparticles, their coating with a 11 nm thick layer of dense silica and functionalization by 5 kDa PEG chains to improve their biocompatibility. The nanomaterials obtained have been characterized by a set of complementary techniques such as infra-red and nuclear magnetic resonance spectroscopies, transmission electron microscopy, dynamic light scattering and zetametry, and magnetometry. They display hydrodynamic diameters in the 100 nm range, zetapotential values around -30 mV, and magnetization values higher than the reference contrast agent RESOVIST®. They display no cytotoxicity against 1BR3G and HCT116 cell lines and no hemolytic activity against human red blood cells. Their nuclear magnetic relaxation dispersion (NMRD) profiles are typical for nanomaterials of this size and magnetization. They display high r2 relaxivity values and low r1 leading to enhanced r2/r1 ratios in comparison with RESOVIST®. All these data make them promising contrast agents to detect early stage tumors.
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Affiliation(s)
- Paul Mathieu
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, CEDEX 4, F-31077 Toulouse, France; (P.M.); (Y.C.); (Q.T.N.)
- Université de Toulouse, UPS, INPT, CEDEX 4, F-31077 Toulouse, France
| | - Yannick Coppel
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, CEDEX 4, F-31077 Toulouse, France; (P.M.); (Y.C.); (Q.T.N.)
- Université de Toulouse, UPS, INPT, CEDEX 4, F-31077 Toulouse, France
| | - Marc Respaud
- LPCNO, INSA, 135 Avenue de Rangueil, CEDEX 4, 31077 Toulouse, France
| | - Quyen T. Nguyen
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, CEDEX 4, F-31077 Toulouse, France; (P.M.); (Y.C.); (Q.T.N.)
- Université de Toulouse, UPS, INPT, CEDEX 4, F-31077 Toulouse, France
| | - Sébastien Boutry
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium; (S.B.); (S.L.); (D.S.); (C.H.)
- Center for Microscopy and Molecular Imaging (CMMI), Université de Mons (UMONS), B-6041 Charleroi, Belgium
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium; (S.B.); (S.L.); (D.S.); (C.H.)
- Center for Microscopy and Molecular Imaging (CMMI), Université de Mons (UMONS), B-6041 Charleroi, Belgium
| | - Dimitri Stanicki
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium; (S.B.); (S.L.); (D.S.); (C.H.)
| | - Céline Henoumont
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium; (S.B.); (S.L.); (D.S.); (C.H.)
| | - Fernando Novio
- Departament de Química, Universitat Autònoma de Barcelona (UAB), Campus UAB, 08193 Cerdanyola del Vallès, Barcelona, Spain;
| | - Julia Lorenzo
- Institut de Biotecnologia i Biomedicina, Departament de Bioquimica i de Biologia Molecular, Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain (D.M.)
| | - David Montpeyó
- Institut de Biotecnologia i Biomedicina, Departament de Bioquimica i de Biologia Molecular, Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain (D.M.)
| | - Catherine Amiens
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, CEDEX 4, F-31077 Toulouse, France; (P.M.); (Y.C.); (Q.T.N.)
- Université de Toulouse, UPS, INPT, CEDEX 4, F-31077 Toulouse, France
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15
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Granato L, Longo D, Boutry S, Vander Elst L, Henoumont C, Aime S, Muller RN, Laurent S. Cover Picture: Synthesis and Relaxometric Characterization of New Poly[
N
,
N
‐bis(3‐aminopropyl)glycine] (PAPGly) Dendrons Gd‐Based Contrast Agents and Their
in Vivo
Study by Using the Dynamic Contrast‐Enhanced MRI Technique at Low Field (1 T) (C&B 11/2019). Chem Biodivers 2019. [DOI: 10.1002/cbdv.201900593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Luigi Granato
- General, Organic and Biomedical Chemistry UnitNMR and Molecular Imaging LaboratoryUniversity of Mons 19 avenue Maistriau B-7000 Mons Belgium
| | - Dario Longo
- Institute of Biostructures and Bioimaging (IBB)Italian National Research Council (CNR) I-10124 Torino Italy
| | - Sébastien Boutry
- Center for Microscopy and Molecular Imaging 8 rue Adrienne Bolland B-6041 Charleroi Belgium
| | - Luce Vander Elst
- General, Organic and Biomedical Chemistry UnitNMR and Molecular Imaging LaboratoryUniversity of Mons 19 avenue Maistriau B-7000 Mons Belgium
| | - Céline Henoumont
- General, Organic and Biomedical Chemistry UnitNMR and Molecular Imaging LaboratoryUniversity of Mons 19 avenue Maistriau B-7000 Mons Belgium
| | - Silvio Aime
- Department of Molecular Biotechnology and Health SciencesUniversity of Torino I-10124 Torino Italy
| | - Robert N. Muller
- General, Organic and Biomedical Chemistry UnitNMR and Molecular Imaging LaboratoryUniversity of Mons 19 avenue Maistriau B-7000 Mons Belgium
- Center for Microscopy and Molecular Imaging 8 rue Adrienne Bolland B-6041 Charleroi Belgium
| | - Sophie Laurent
- General, Organic and Biomedical Chemistry UnitNMR and Molecular Imaging LaboratoryUniversity of Mons 19 avenue Maistriau B-7000 Mons Belgium
- Center for Microscopy and Molecular Imaging 8 rue Adrienne Bolland B-6041 Charleroi Belgium
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16
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Colson E, Decroo C, Cooper-Shepherd D, Caulier G, Henoumont C, Laurent S, De Winter J, Flammang P, Palmer M, Claereboudt J, Gerbaux P. Discrimination of Regioisomeric and Stereoisomeric Saponins from Aesculus hippocastanum Seeds by Ion Mobility Mass Spectrometry. J Am Soc Mass Spectrom 2019; 30:2228-2237. [PMID: 31452089 DOI: 10.1007/s13361-019-02310-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 08/01/2019] [Accepted: 08/08/2019] [Indexed: 06/10/2023]
Abstract
Modern mass spectrometry methods provide a huge benefit to saponin structural characterization, especially when combined with collision-induced dissociation experiments to obtain a partial description of the saponin (ion) structure. However, the complete description of the structures of these ubiquitous secondary metabolites remain challenging, especially since isomeric saponins presenting small differences are often present in a single extract. As a typical example, the horse chestnut triterpene glycosides, the so-called escins, comprise isomeric saponins containing subtle differences such as cis-trans ethylenic configuration (stereoisomers) of a side chain or distinct positions of an acetyl group (regioisomers) on the aglycone. In the present paper, the coupling of liquid chromatography and ion mobility mass spectrometry has been used to distinguish regioisomeric and stereoisomeric saponins. Ion mobility arrival time distributions (ATDs) were recorded for the stereoisomeric and regioisomeric saponin ions demonstrating that isomeric saponins can be partially separated using ion mobility on a commercially available traveling wave ion mobility (TWIMS) mass spectrometer. Small differences in the ATD can only be monitored when the isomeric saponins are separated with liquid chromatography prior to the IM-MS analysis. However, gas phase separation between stereoisomeric and regioisomeric saponin ions can be successfully realized, without any LC separation, on a cyclic ion mobility-enabled quadrupole time-of-flight (Q-cIM-oaToF) mass spectrometer. The main outcome of the present paper is that the structural analysis of regioisomeric and stereoisomeric natural compounds that represents a real challenge can take huge advantages of ion mobility experiments but only if increased ion mobility resolution is attainable.
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Affiliation(s)
- Emmanuel Colson
- Organic Synthesis and Mass Spectrometry Laboratory (S2MOs), University of Mons, 23 Place du Parc, 7000, Mons, Belgium
- Biology of Marine Organisms and Biomimetics Unit (BOMB), University of Mons, 23 Place du Parc, 7000, Mons, Belgium
| | - Corentin Decroo
- Organic Synthesis and Mass Spectrometry Laboratory (S2MOs), University of Mons, 23 Place du Parc, 7000, Mons, Belgium
- Biology of Marine Organisms and Biomimetics Unit (BOMB), University of Mons, 23 Place du Parc, 7000, Mons, Belgium
| | | | - Guillaume Caulier
- Biology of Marine Organisms and Biomimetics Unit (BOMB), University of Mons, 23 Place du Parc, 7000, Mons, Belgium
| | - Céline Henoumont
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 23 Place du Parc, 7000, Mons, Belgium
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 23 Place du Parc, 7000, Mons, Belgium
| | - Julien De Winter
- Organic Synthesis and Mass Spectrometry Laboratory (S2MOs), University of Mons, 23 Place du Parc, 7000, Mons, Belgium
| | - Patrick Flammang
- Biology of Marine Organisms and Biomimetics Unit (BOMB), University of Mons, 23 Place du Parc, 7000, Mons, Belgium
| | - Martin Palmer
- Waters Corporation, Altrincham Road, Wilmslow, SK9 4AX, UK
| | - Jan Claereboudt
- Waters Corporation, Brusselsesteenweg 500, 1731, Zellik, Belgium
| | - Pascal Gerbaux
- Organic Synthesis and Mass Spectrometry Laboratory (S2MOs), University of Mons, 23 Place du Parc, 7000, Mons, Belgium.
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17
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Ndiaye M, Malytskyi V, Vangijzegem T, Sauvage F, Wels M, Cadiou C, Moreau J, Henoumont C, Boutry S, Muller RN, Harakat D, Smedt SD, Laurent S, Chuburu F. Comparison of MRI Properties between Multimeric DOTAGA and DO3A Gadolinium-Dendron Conjugates. Inorg Chem 2019; 58:12798-12808. [DOI: 10.1021/acs.inorgchem.9b01747] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Maleotane Ndiaye
- Laboratoire de RMN et d’Imagerie Moléculaire, Université de Mons, B-7000 Mons, Belgium
| | - Volodymyr Malytskyi
- Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne URCA, F-51685 Reims Cedex 2, France
| | - Thomas Vangijzegem
- Laboratoire de RMN et d’Imagerie Moléculaire, Université de Mons, B-7000 Mons, Belgium
| | - Félix Sauvage
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Mike Wels
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Cyril Cadiou
- Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne URCA, F-51685 Reims Cedex 2, France
| | - Juliette Moreau
- Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne URCA, F-51685 Reims Cedex 2, France
| | - Céline Henoumont
- Laboratoire de RMN et d’Imagerie Moléculaire, Université de Mons, B-7000 Mons, Belgium
| | - Sébastien Boutry
- Center for Microscopy and Molecular Imaging, Rue Adrienne Bolland 8, B-6041 Charleroi, Belgium
| | - Robert N. Muller
- Laboratoire de RMN et d’Imagerie Moléculaire, Université de Mons, B-7000 Mons, Belgium
- Center for Microscopy and Molecular Imaging, Rue Adrienne Bolland 8, B-6041 Charleroi, Belgium
| | - Dominique Harakat
- Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne URCA, F-51685 Reims Cedex 2, France
| | - Stefaan De Smedt
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Sophie Laurent
- Laboratoire de RMN et d’Imagerie Moléculaire, Université de Mons, B-7000 Mons, Belgium
- Center for Microscopy and Molecular Imaging, Rue Adrienne Bolland 8, B-6041 Charleroi, Belgium
| | - Françoise Chuburu
- Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne URCA, F-51685 Reims Cedex 2, France
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18
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Raeskinet B, Moins S, Harvey L, De Winter J, Henoumont C, Laurent S, Coulembier O. Simultaneous “O–Alkyl” and “O–Acyl” Lactone Cleavages from Hydroxy–Carboxylic Acid Initiators: Direct Access to Multiblock Architectures. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01282] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Luke Harvey
- ENSICAEN, UNICAEN, Normandy University, 14000 Caen, France
| | | | | | - Sophie Laurent
- Center for Microscopy and Molecular Imaging (CMMI), Rue Adrienne Bolland 8, 6041 Gosselies, Belgium
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19
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Devreux M, Henoumont C, Dioury F, Stanicki D, Boutry S, Larbanoix L, Ferroud C, Muller RN, Laurent S. Front Cover: Bimodal Probe for Magnetic Resonance Imaging and Photoacoustic Imaging Based on a PCTA‐Derived Gadolinium(III) Complex and ZW800–1 (Eur. J. Inorg. Chem. 29/2019). Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Marie Devreux
- NMR and Molecular Imaging University of Mons 19 Avenue Maistriau 7000 Mons Belgium
| | - Céline Henoumont
- NMR and Molecular Imaging University of Mons 19 Avenue Maistriau 7000 Mons Belgium
| | - Fabienne Dioury
- Laboratoire de Génomique Bioinformatique et Chimie Moléculaire, EA 7528, Conservatoire National des Arts et Métiers HESAM Université 2 rue Conté 75003 Paris France
| | - Dimitri Stanicki
- NMR and Molecular Imaging University of Mons 19 Avenue Maistriau 7000 Mons Belgium
| | - Sébastien Boutry
- Center of Microscopy and Molecular Imaging 8 rue Adrienne Bolland 6041 Charleroi Belgium
| | - Lionel Larbanoix
- Center of Microscopy and Molecular Imaging 8 rue Adrienne Bolland 6041 Charleroi Belgium
| | - Clotilde Ferroud
- Laboratoire de Génomique Bioinformatique et Chimie Moléculaire, EA 7528, Conservatoire National des Arts et Métiers HESAM Université 2 rue Conté 75003 Paris France
| | - Robert N. Muller
- NMR and Molecular Imaging University of Mons 19 Avenue Maistriau 7000 Mons Belgium
- Center of Microscopy and Molecular Imaging 8 rue Adrienne Bolland 6041 Charleroi Belgium
| | - Sophie Laurent
- NMR and Molecular Imaging University of Mons 19 Avenue Maistriau 7000 Mons Belgium
- Center of Microscopy and Molecular Imaging 8 rue Adrienne Bolland 6041 Charleroi Belgium
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20
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Devreux M, Henoumont C, Dioury F, Stanicki D, Boutry S, Larbanoix L, Ferroud C, Muller RN, Laurent S. Bimodal Probe for Magnetic Resonance Imaging and Photoacoustic Imaging Based on a PCTA‐Derived Gadolinium(III) Complex and ZW800–1. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marie Devreux
- NMR and Molecular Imaging University of Mons 19 Avenue Maistriau 7000 Mons Belgium
| | - Céline Henoumont
- NMR and Molecular Imaging University of Mons 19 Avenue Maistriau 7000 Mons Belgium
| | - Fabienne Dioury
- Laboratoire de Génomique Bioinformatique et Chimie Moléculaire, EA 7528, Conservatoire National des Arts et Métiers HESAM Université 2 rue Conté 75003 Paris France
| | - Dimitri Stanicki
- NMR and Molecular Imaging University of Mons 19 Avenue Maistriau 7000 Mons Belgium
| | - Sébastien Boutry
- Center of Microscopy and Molecular Imaging 8 rue Adrienne Bolland 6041 Charleroi Belgium
| | - Lionel Larbanoix
- Center of Microscopy and Molecular Imaging 8 rue Adrienne Bolland 6041 Charleroi Belgium
| | - Clotilde Ferroud
- Laboratoire de Génomique Bioinformatique et Chimie Moléculaire, EA 7528, Conservatoire National des Arts et Métiers HESAM Université 2 rue Conté 75003 Paris France
| | - Robert N. Muller
- NMR and Molecular Imaging University of Mons 19 Avenue Maistriau 7000 Mons Belgium
- Center of Microscopy and Molecular Imaging 8 rue Adrienne Bolland 6041 Charleroi Belgium
| | - Sophie Laurent
- NMR and Molecular Imaging University of Mons 19 Avenue Maistriau 7000 Mons Belgium
- Center of Microscopy and Molecular Imaging 8 rue Adrienne Bolland 6041 Charleroi Belgium
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21
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Devreux M, Henoumont C, Dioury F, Stanicki D, Boutry S, Larbanoix L, Ferroud C, Muller RN, Laurent S. Bimodal Probe for Magnetic Resonance Imaging and Photoacoustic Imaging Based on a PCTA-Derived Gadolinium(III) Complex and ZW800-1. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900387] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Marie Devreux
- NMR and Molecular Imaging; University of Mons; 19 Avenue Maistriau 7000 Mons Belgium
| | - Céline Henoumont
- NMR and Molecular Imaging; University of Mons; 19 Avenue Maistriau 7000 Mons Belgium
| | - Fabienne Dioury
- Laboratoire de Génomique; Bioinformatique et Chimie Moléculaire, EA 7528, Conservatoire National des Arts et Métiers; HESAM Université; 2 rue Conté 75003 Paris France
| | - Dimitri Stanicki
- NMR and Molecular Imaging; University of Mons; 19 Avenue Maistriau 7000 Mons Belgium
| | - Sébastien Boutry
- Center of Microscopy and Molecular Imaging; 8 rue Adrienne Bolland 6041 Charleroi Belgium
| | - Lionel Larbanoix
- Center of Microscopy and Molecular Imaging; 8 rue Adrienne Bolland 6041 Charleroi Belgium
| | - Clotilde Ferroud
- Laboratoire de Génomique; Bioinformatique et Chimie Moléculaire, EA 7528, Conservatoire National des Arts et Métiers; HESAM Université; 2 rue Conté 75003 Paris France
| | - Robert N. Muller
- NMR and Molecular Imaging; University of Mons; 19 Avenue Maistriau 7000 Mons Belgium
- Center of Microscopy and Molecular Imaging; 8 rue Adrienne Bolland 6041 Charleroi Belgium
| | - Sophie Laurent
- NMR and Molecular Imaging; University of Mons; 19 Avenue Maistriau 7000 Mons Belgium
- Center of Microscopy and Molecular Imaging; 8 rue Adrienne Bolland 6041 Charleroi Belgium
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22
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Harris M, Kolanowski JL, O'Neill ES, Henoumont C, Laurent S, Parac-Vogt TN, New EJ. Drawing on biology to inspire molecular design: a redox-responsive MRI probe based on Gd(iii)-nicotinamide. Chem Commun (Camb) 2018; 54:12986-12989. [PMID: 30387480 DOI: 10.1039/c8cc07092j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A novel, reversible redox-active MRI probe, GdNR1, has been developed for the study of redox changes associated with diseased states. This system exhibits switching in relaxivity upon reduction and oxidation of the appended nicotinimidium. Relaxivity studies and cyclic voltammetry confirmed the impressive reversibility of this system, at a biologically-relevant reduction potential. A 2.5-fold increase in relaxivity was observed upon reduction of the complex, which corresponds to a change in the number of inner-sphere water molecules, as confirmed by luminescence lifetimes of the Eu(iii) analogue and NMRD studies. This is the first example of a redox-responsive MRI probe utilising the biologically-inspired nicotinimidium redox switch. In the future this strategy could enable the non-invasive identification of hypoxic tissue and related cardiovascular disease.
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Affiliation(s)
- Michael Harris
- Department of Chemistry, KU Leuven, Celestijnlaan 200F, Heverlee 3001, Belgium
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23
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Ghouila Z, Laurent S, Henoumont C, Vander Elst L, Muller R, Baaliouamer A. Rich extract on total polyphenols and antioxidant activity obtained by conventional and non-conventional methods from Ahmeur Bouamer grape seed. J Fundam and Appl Sci 2018. [DOI: 10.4314/jfas.v8i3.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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24
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Carroy G, Lemaur V, Henoumont C, Laurent S, De Winter J, De Pauw E, Cornil J, Gerbaux P. Flying Cages in Traveling Wave Ion Mobility: Influence of the Instrumental Parameters on the Topology of the Host-Guest Complexes. J Am Soc Mass Spectrom 2018; 29:121-132. [PMID: 28971374 DOI: 10.1007/s13361-017-1816-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 09/13/2017] [Accepted: 09/15/2017] [Indexed: 06/07/2023]
Abstract
Supramolecular mass spectrometry has emerged in the last decade as an orthogonal method to access, at the molecular level, the structures of noncovalent complexes extracted from the condensed phase to the rarefied gas phase using electrospray ionization. It is often considered that the soft nature of the ESI source confers to the method the capability to generate structural data comparable to those in the condensed phase. In the present paper, using the ammonium ion/cucurbituril combination as a model system, we investigate using ion mobility and computational chemistry the influence of the instrumental parameters on the topology, i.e., internal versus external association, of gaseous host/guest complex ions. MS and theoretical data are confronted to condensed phase data derived from nuclear magnetic resonance spectroscopy to assess whether the instrumental parameters can play an insidious role when trying to derive condensed phase data from mass spectrometry results. Graphical Abstract ᅟ.
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Affiliation(s)
- Glenn Carroy
- Organic Synthesis and Mass Spectrometry Laboratory, Interdisciplinary Center for Mass Spectrometry, Research Institute for Science and Engineering of Materials, University of Mons, UMONS, 23 Place du Parc, 7000, Mons, Belgium
- Mass spectrometry Laboratory, University of Liège, B-4000, Liège, Belgium
- Laboratory for Chemistry of Novel Materials, Center of Innovation and Research in Materials and Polymers, Research Institute for Science and Engineering of Materials, University of Mons, UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Vincent Lemaur
- Laboratory for Chemistry of Novel Materials, Center of Innovation and Research in Materials and Polymers, Research Institute for Science and Engineering of Materials, University of Mons, UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Céline Henoumont
- Department of General, Organic and Biomedical Chemistry, UMONS, Avenue Victor Maistriau 19, 7000, Mons, Belgium
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, UMONS, Avenue Victor Maistriau 19, 7000, Mons, Belgium
- Center for Microscopy and Molecular Imaging, rue Adrienne Bolland 8, B-6041, Gosselies, Belgium
| | - Julien De Winter
- Organic Synthesis and Mass Spectrometry Laboratory, Interdisciplinary Center for Mass Spectrometry, Research Institute for Science and Engineering of Materials, University of Mons, UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Edwin De Pauw
- Mass spectrometry Laboratory, University of Liège, B-4000, Liège, Belgium
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials, Center of Innovation and Research in Materials and Polymers, Research Institute for Science and Engineering of Materials, University of Mons, UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Pascal Gerbaux
- Organic Synthesis and Mass Spectrometry Laboratory, Interdisciplinary Center for Mass Spectrometry, Research Institute for Science and Engineering of Materials, University of Mons, UMONS, 23 Place du Parc, 7000, Mons, Belgium.
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25
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Moins S, Henoumont C, De Winter J, Khalil A, Laurent S, Cammas-Marion S, Coulembier O. Reinvestigation of the mechanism of polymerization of β-butyrolactone from 1,5,7-triazabicyclo[4.4.0]dec-5-ene. Polym Chem 2018. [DOI: 10.1039/c8py00206a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The questionable mechanism initially proposed to explain how 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) allows us to ring-open β-lactones, such as β-butyrolactone (BL), is reinvestigated here.
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Affiliation(s)
- S. Moins
- Laboratory of Polymeric and Composite Materials
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- University of Mons
- 7000 Mons
- Belgium
| | - C. Henoumont
- General
- Organic and Biomedical Chemistry
- NMR and Molecular Imaging Laboratory
- University of Mons
- 7000 Mons
| | - J. De Winter
- Organic Synthesis and Mass Spectrometry Laboratory (S2MOS)
- University of Mons
- 7000 Mons
- Belgium
| | - A. Khalil
- Laboratory of Polymeric and Composite Materials
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- University of Mons
- 7000 Mons
- Belgium
| | - S. Laurent
- General
- Organic and Biomedical Chemistry
- NMR and Molecular Imaging Laboratory
- University of Mons
- 7000 Mons
| | - S. Cammas-Marion
- Univ Rennes
- ENSCR
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- 35000 Rennes
| | - O. Coulembier
- Laboratory of Polymeric and Composite Materials
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- University of Mons
- 7000 Mons
- Belgium
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26
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Harris M, Henoumont C, Peeters W, Toyouchi S, Vander Elst L, Parac-Vogt TN. Amphiphilic complexes of Ho(iii), Dy(iii), Tb(iii) and Eu(iii) for optical and high field magnetic resonance imaging. Dalton Trans 2018; 47:10646-10653. [DOI: 10.1039/c8dt01227j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Amphiphilic lanthanide(iii) complexes self-assemble into monodisperse micelles with favourable properties for optical and high field magnetic resonance imaging.
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Affiliation(s)
| | - Céline Henoumont
- General, Organic and Biomedical Chemistry
- NMR and Molecular Imaging Laboratory
- University of Mons
- 7000 Mons
- Belgium
| | | | | | - Luce Vander Elst
- General, Organic and Biomedical Chemistry
- NMR and Molecular Imaging Laboratory
- University of Mons
- 7000 Mons
- Belgium
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27
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Affiliation(s)
| | - Céline Henoumont
- General Organic and Biomedical chemistry University of Mons; Avenue Victor Maistriau, 19 7000 Mons Belgium
| | - Luce Vander Elst
- General Organic and Biomedical chemistry University of Mons; Avenue Victor Maistriau, 19 7000 Mons Belgium
| | - Robert N. Muller
- General Organic and Biomedical chemistry University of Mons; Avenue Victor Maistriau, 19 7000 Mons Belgium
- Center for Microscopy and Molecular Imaging (CMMI); Institution Rue Adrienne Bolland 8 Gosselies 6041 Belgium
| | - Sophie Laurent
- General Organic and Biomedical chemistry University of Mons; Avenue Victor Maistriau, 19 7000 Mons Belgium
- Center for Microscopy and Molecular Imaging (CMMI); Institution Rue Adrienne Bolland 8 Gosselies 6041 Belgium
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28
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Van Koninckxloo A, Henoumont C, Laurent S, Muller RN, Vander Elst L. (1) H-NMR relaxometric studies of interaction between apoptosis specific MRI paramagnetic contrast agents and micellar models of apoptotic cells. Magn Reson Chem 2016; 54:568-574. [PMID: 26647764 DOI: 10.1002/mrc.4397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 10/02/2015] [Accepted: 11/11/2015] [Indexed: 06/05/2023]
Abstract
(1) H-NMR was previously used to analyze the interaction between peptides (E3 and R826) selected by phage display to target apoptotic cells and phospholipidic models of these cells. In order to avoid the use of apoptotic cells and to obtain a fast evaluation of the efficiency of the potential MRI contrast agents obtained by grafting these peptides and their scramble analogs on a paramagnetic gadolinium complex, their proton relaxometric behavior was investigated in the presence of micelles mimicking healthy and apoptotic cells. Their preferential interaction with 1,2-dipalmitoyl-sn-glycero-3-phospho-l-serine micelles mimicking apoptotic cells as compared with 1,2-dipalmitoyl-sn-glycero-3-phosphocholine micelles modeling healthy cells was shown by nuclear magnetic relaxation dispersion profiles and the enhancement of the transverse proton relaxation rates at 60 MHz. The association constant values confirm the stronger interaction of the selected conjugated peptides (Ka Gd-PMN-E3(gadolinium 2,2',2'',2'''-[((4-carboxy)pyridine-2,6-diyl)bis(methylenenitrilo)]-tetrakis acetate) grafted with E3 peptide): 2.43 10(4) m(-1) ; Ka Gd-DTPA-R826(gadolinium ((1-p-isothiocyanatobenzyl)-diethylenetriaminepentaacetate) grafted with R826 peptide): 2.91 10(4) m(-1) ) as compared with their conjugated scrambles (Ka Gd-PMN-E3sc(gadolinium 2,2',2'',2'''-[((4-carboxy)pyridine-2,6-diyl)bis(methylenenitrilo)]-tetrakis acetate) grafted with E3 scramble peptide): 0.18 10(4) m(-1) ; Ka Gd-DTPA-R826sc(gadolinium ((1-p-isothiocyanatobenzyl)-diethylenetriaminepentaacetate) grafted with R826 scramble peptide): 0.32 10(4) m(-1) ) even if the conjugation of E3 and R826 seems to decrease their interaction. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- Aurore Van Koninckxloo
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000, Mons, Belgium
| | - Céline Henoumont
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000, Mons, Belgium
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000, Mons, Belgium
- CMMI - Center for Microscopy and Molecular Imaging, 6041, Gosselies, Belgium
| | - Robert N Muller
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000, Mons, Belgium
- CMMI - Center for Microscopy and Molecular Imaging, 6041, Gosselies, Belgium
| | - Luce Vander Elst
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000, Mons, Belgium
- CMMI - Center for Microscopy and Molecular Imaging, 6041, Gosselies, Belgium
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Henoumont C, Laurent S, Muller RN, Vander Elst L. HR-MAS NMR Spectroscopy: An Innovative Tool for the Characterization of Iron Oxide Nanoparticles Tracers for Molecular Imaging. Anal Chem 2015; 87:1701-10. [DOI: 10.1021/ac5035105] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Céline Henoumont
- Department
of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging
Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium
| | - Sophie Laurent
- Department
of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging
Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium
| | - Robert N. Muller
- Department
of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging
Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium
- Center
for Microscopy
and Molecular Imaging (CMMI), 8 Rue
Adrienne Boland, 6041 Gosselies, Belgium
| | - Luce Vander Elst
- Department
of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging
Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium
- Center
for Microscopy
and Molecular Imaging (CMMI), 8 Rue
Adrienne Boland, 6041 Gosselies, Belgium
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30
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Van Koninckxloo A, Henoumont C, Laurent S, Muller RN, Vander Elst L. NMR chemical shift study of the interaction of selected peptides with liposomal and micellar models of apoptotic cells. J Biol Inorg Chem 2014; 19:1367-76. [PMID: 25287364 DOI: 10.1007/s00775-014-1195-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 09/12/2014] [Indexed: 11/30/2022]
Abstract
The interaction between two peptides previously selected by phage display to target apoptotic cells and phospholipidic models of these cells (liposomes or micelles made of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and/or 1,2-dipalmitoyl-sn-glycero-3-phospho-L-serine (DPPS, phosphatidylserine analog) was studied by the simple analysis of the changes induced on the proton NMR chemical shifts of the peptides. Our approach which does not need healthy and/or apoptotic cells for assessing the affinity of different peptides is fast and efficient and requires small amounts of peptide to determine the association constant, the interacting protons, and the number of interaction sites. The micellar model gave more reliable results than the liposomal one. The preferential interaction of the peptide with DPPS was evidenced by the change of the chemical shifts of specific amino acids of the peptides. Our micellar model is thus well suited to mimic apoptotic cells.
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Affiliation(s)
- Aurore Van Koninckxloo
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000, Mons, Belgium
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31
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Zhou Q, Henoumont C, Vander Elst L, Laurent S, Muller RN. Fluorometry, a fast screening technique for non-covalent binding of contrast agents to human serum albumin? Contrast Media Mol Imaging 2013; 8:361-5. [DOI: 10.1002/cmmi.1531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2012] [Revised: 12/09/2012] [Accepted: 01/04/2013] [Indexed: 11/09/2022]
Affiliation(s)
| | - C. Henoumont
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory; University of Mons; Mons; Belgium
| | - L. Vander Elst
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory; University of Mons; Mons; Belgium
| | - S. Laurent
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory; University of Mons; Mons; Belgium
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32
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Rosier C, Leys N, Henoumont C, Mergeay M, Wattiez R. Purification and characterization of the acetone carboxylase of Cupriavidus metallidurans strain CH34. Appl Environ Microbiol 2012; 78:4516-8. [PMID: 22492439 PMCID: PMC3370517 DOI: 10.1128/aem.07974-11] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Accepted: 03/22/2012] [Indexed: 11/20/2022] Open
Abstract
Acetone carboxylase (Acx) is a key enzyme involved in the biodegradation of acetone by bacteria. Except for the Helicobacteraceae family, genome analyses revealed that bacteria that possess an Acx, such as Cupriavidus metallidurans strain CH34, are associated with soil. The Acx of CH34 forms the heterohexameric complex α(2)β(2)γ(2) and can carboxylate only acetone and 2-butanone in an ATP-dependent reaction to acetoacetate and 3-keto-2-methylbutyrate, respectively.
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Affiliation(s)
- Caroline Rosier
- Department of Proteomics and Microbiology, Interdisciplinary Center of Mass Spectrometry (CISMa), University of Mons, Mons, Belgium
| | - Natalie Leys
- Expert Group for Molecular and Cellular Biology, SCK•CEN, Mol, Belgium
| | - Céline Henoumont
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, Mons, Belgium
| | - Max Mergeay
- Expert Group for Molecular and Cellular Biology, SCK•CEN, Mol, Belgium
| | - Ruddy Wattiez
- Department of Proteomics and Microbiology, Interdisciplinary Center of Mass Spectrometry (CISMa), University of Mons, Mons, Belgium
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33
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Henoumont C, Laurent S, Muller RN, Vander Elst L. Effect of nonenzymatic glycosylation on the magnetic resonance imaging (MRI) contrast agent binding to human serum albumin. J Med Chem 2012; 55:4015-9. [PMID: 22420713 DOI: 10.1021/jm3000246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Enhanced nonenzymatic glycosylation (NEG) of human serum albumin (HSA) is observed in diabetic patients. This modifies some of the physiological functions of HSA, as the binding of ligands. Some gadolinium complexes, commonly used as MRI contrast agents, have a high affinity for HSA, which enhances their efficacy. The aim of this study is to evaluate the possible influence of the NEG of HSA on its affinity for some gadolinium chelates.
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Affiliation(s)
- Céline Henoumont
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium
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34
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Laurent S, Henoumont C, Vander Elst L, Muller RN. Synthesis and Physicochemical Characterisation of Gd-DTPA Derivatives as Contrast Agents for MRI. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101226] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Zhou Q, Henoumont C, Vander Elst L, Laurent S, Muller R. NMR determination of free gallium(III) ions in aqueous solutions of Ga complexes, “cold” analogs of PET/SPECT tracers. Contrast Media Mol Imaging 2011; 6:165-7. [DOI: 10.1002/cmmi.441] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Q. Zhou
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory; University of Mons; Mons; B-7000; Mons; Belgium
| | - C. Henoumont
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory; University of Mons; Mons; B-7000; Mons; Belgium
| | - L. Vander Elst
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory; University of Mons; Mons; B-7000; Mons; Belgium
| | - S. Laurent
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory; University of Mons; Mons; B-7000; Mons; Belgium
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Laurent S, Vander Elst L, Henoumont C, Muller RN. How to measure the transmetallation of a gadolinium complex. Contrast Media Mol Imaging 2010; 5:305-8. [DOI: 10.1002/cmmi.388] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Henoumont C, Vander Elst L, Laurent S, Muller RN. Synthesis and physicochemical characterization of Gd-C4-thyroxin-DTPA, a potential MRI contrast agent. Evaluation of its affinity for human serum albumin by proton relaxometry, NMR diffusometry, and electrospray mass spectrometry. J Phys Chem B 2010; 114:3689-97. [PMID: 20175550 DOI: 10.1021/jp910961j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Gd-C(4)-thyroxin-DTPA, a potential MRI contrast agent, was synthesized from Gd-DTPA and thyroxine, which interacts strongly with human serum albumin (HSA). It was characterized in water by its relaxometric properties and its stability versus zinc transmetalation. The affinity of the complex for HSA was studied by using three different methods: proton relaxometry, NMR diffusometry, and electrospray mass spectrometry. From the results, it appears that Gd-C(4)-thyroxin-DTPA exhibits a relatively high relaxivity (r(1) = 9.01 s(-1) mM(-1) at 1.5 T and 310 K), a good stability versus zinc transmetalation, and a strong interaction with HSA (K(a) approximately 10,000 M(-1) with two binding sites). The kinetics of the exchange between the bound and the free form of the complex was evaluated by the NMR diffusometry technique. Competition experiments have allowed the assignment of the chelate's binding site on HSA.
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Affiliation(s)
- C Henoumont
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau, B-7000 Mons, Belgium
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Henoumont C, Laurent S, Vander Elst L. How to perform accurate and reliable measurements of longitudinal and transverse relaxation times of MRI contrast media in aqueous solutions. Contrast Media Mol Imaging 2010; 4:312-21. [PMID: 19998320 DOI: 10.1002/cmmi.294] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Knowledge of the longitudinal and transverse relaxation times (T(1) and T(2)) of water protons in an aqueous solution of an MRI contrast agent is essential for its characterization. These parameters can be measured at low field on low resolution spectrometers or at high field on high resolution spectrometers. The reliability and the accuracy of T(1) and T(2) measurements rely on several experimental settings and on the equation used to fit the data. Examples of the importance of careful adjustment of the most important parameters are illustrated through several measurements performed on a low-resolution, low-magnetic field instrument. In addition, some specificities of T(1) and T(2) measurements on high-resolution, high-magnetic field spectrometers are pointed out.
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Affiliation(s)
- C Henoumont
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau, B-7000 Mons, Belgium
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Henoumont C, Vander Elst L, Laurent S, Muller RN. Study of non-covalent interactions between MRI contrast agents and human serum albumin by NMR diffusometry. J Biol Inorg Chem 2009; 14:683-91. [DOI: 10.1007/s00775-009-0481-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2008] [Accepted: 02/05/2009] [Indexed: 12/28/2022]
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Henoumont C, Henrotte V, Laurent S, Vander Elst L, Muller R. Synthesis of a new gadolinium complex with a high affinity for human serum albumin and its manifold physicochemical characterization by proton relaxation rate analysis, NMR diffusometry and electrospray mass spectrometry. J Inorg Biochem 2008; 102:721-30. [DOI: 10.1016/j.jinorgbio.2007.10.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2007] [Revised: 10/12/2007] [Accepted: 10/31/2007] [Indexed: 12/20/2022]
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