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El Hajj S, Canabady-Rochelle L, Fries-Raeth I, Gaucher C. A Smooth Muscle Cell-Based Ferroptosis Model to Evaluate Iron-Chelating Molecules for Cardiovascular Disease Treatment. Curr Issues Mol Biol 2024; 46:1348-1359. [PMID: 38392204 PMCID: PMC10888404 DOI: 10.3390/cimb46020086] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/24/2024] [Accepted: 01/29/2024] [Indexed: 02/24/2024] Open
Abstract
Dysregulation of iron homeostasis causes iron-mediated cell death, recently described as ferroptosis. Ferroptosis is reported in many chronic diseases, such as hepatic cancer, renal, and cardiovascular diseases (heart failure, atherosclerosis). However, there is a notable scarcity of research studies in the existing literature that explore treatments capable of preventing ferroptosis. Additionally, as far as the author is aware, there is currently no established model for studying ferroptosis within cardiovascular cells, which would be essential for assessing metal-chelating molecules with the potential ability to inhibit ferroptosis and their application in the treatment of cardiovascular diseases. In this study, a smooth muscle cell-based ferroptosis model is developed upon the inhibition of the system Xc- transporter by erastin associated or not with Fe(III) overload, and its rescue upon the introduction of well-known iron chelators, deferoxamine and deferiprone. We showed that erastin alone decreased the intracellular concentration of glutathione (GSH) without affecting peroxidized lipid concentrations. Erastin with ferric citrate was able to decrease intracellular GSH and induce lipid peroxidation after overnight incubation. Only deferiprone was able to rescue the cells from ferroptosis by decreasing lipid peroxidation via iron ion chelation in a 3:1 molar ratio.
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Affiliation(s)
- Sarah El Hajj
- Université de Lorraine, CITHEFOR, F-54505 Vandoeuvre Les Nancy, France
- Université de Lorraine, LRGP, CNRS, F-54000 Nancy, France
| | | | | | - Caroline Gaucher
- Université de Lorraine, CITHEFOR, F-54505 Vandoeuvre Les Nancy, France
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2
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Alhasan R, Martins GM, de Castro PP, Saleem RSZ, Zaiter A, Fries-Raeth I, Kleinclauss A, Perrin-Sarrado C, Chaimbault P, da Silva Júnior EN, Gaucher C, Jacob C. Selenoneine-inspired selenohydantoins with glutathione peroxidase-like activity. Bioorg Med Chem 2023; 94:117479. [PMID: 37769443 DOI: 10.1016/j.bmc.2023.117479] [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: 06/30/2023] [Revised: 08/27/2023] [Accepted: 09/17/2023] [Indexed: 09/30/2023]
Abstract
Chronic diseases such as cystic fibrosis, inflammatory bowel diseases, rheumatoid arthritis, and cardiovascular illness have been linked to a decrease in selenium levels and an increase in oxidative stress. Selenium is an essential trace element that exhibits antioxidant properties, with selenocysteine enzymes like glutathione peroxidase being particularly effective at reducing peroxides. In this study, a series of synthetic organoselenium compounds were synthesized and evaluated for their potential antioxidant activities. The new selenohydantoin molecules were inspired by selenoneine and synthesized using straightforward methods. Their antioxidant potential was evaluated and proven using classical radical scavenging and metal-reducing methods. The selenohydantoin derivatives exhibited glutathione peroxidase-like activity, reducing hydroperoxides. Theoretical calculations using Density Functional Theory (DFT) revealed the selenone isomer to be the only one occurring in solution, with selenolate as a possible tautomeric form in the presence of a basic species. Cytocompatibility assays indicated that the selenohydantoin derivatives were non-toxic to primary human aortic smooth muscle cells, paving the way for further biological evaluations of their antioxidant activity. The results suggest that selenohydantoin derivatives with trifluoro-methyl (-CF3) and chlorine (-Cl) substituents have significant activities and could be potential candidates for further biological trials. These compounds may contribute to the development of effective therapies for chronic diseases such cardiovascular diseases.
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Affiliation(s)
- Rama Alhasan
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, 66123 Saarbruecken, Germany
| | - Guilherme M Martins
- Department of Chemistry, Federal University of Sao Carlos, UFSCar, 13565-905 São Carlos, SP, Brazil; Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, UFMG, 31270-901 Belo Horizonte, MG, Brazil
| | - Pedro P de Castro
- Department of Chemistry, Federal University of Sao Carlos, UFSCar, 13565-905 São Carlos, SP, Brazil
| | - Rahman Shah Zaib Saleem
- Department of Chemistry and Chemical Engineering, SBA School of Sciences and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Ali Zaiter
- Université de Lorraine, LCP-A2MC, F-57000 Metz, France
| | | | | | | | | | - Eufrânio N da Silva Júnior
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, UFMG, 31270-901 Belo Horizonte, MG, Brazil.
| | - Caroline Gaucher
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; Université de Lorraine, CNRS, IMoPA, F-54000 Nancy, France.
| | - Claus Jacob
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, 66123 Saarbruecken, Germany
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3
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El Hajj S, Irankunda R, Camaño Echavarría JA, Arnoux P, Paris C, Stefan L, Gaucher C, Boschi-Muller S, Canabady-Rochelle L. Metal-chelating activity of soy and pea protein hydrolysates obtained after different enzymatic treatments from protein isolates. Food Chem 2023; 405:134788. [PMID: 36370575 DOI: 10.1016/j.foodchem.2022.134788] [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: 02/28/2022] [Revised: 09/28/2022] [Accepted: 10/25/2022] [Indexed: 11/09/2022]
Abstract
Soy and pea proteins are two rich sources of essential amino acids. The hydrolysis of these proteins reveals functional and bioactive properties of the produced small peptide mixtures. In our study, we employed the hydrolysis of soy and pea protein isolates with the endopeptidases Alcalase® and Protamex®, used alone or followed by the exopeptidase Flavourzyme®. The sequential enzyme treatments were the most efficient regarding the degree of hydrolysis. Then, soy and pea protein hydrolysates (SPHs and PPHs, respectively) were ultrafiltrated in order to select peptides of molecular weight ≤ 1 kDa. Whatever the protein source or the hydrolysis treatment, the hydrolysates showed similar molecular weight distributions and amino acid compositions. In addition, all the ultrafiltrated hydrolysates possess metal-chelating activities, as determined by UV-spectrophotometry and Surface Plasmon Resonance (SPR). However, the SPR data revealed better chelating affinities in SPHs and PPHs when produced by sequential enzymatic treatment.
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Affiliation(s)
- Sarah El Hajj
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France; Université de Lorraine, CITHEFOR, F-54505 Vandoeuvre Les Nancy, France.
| | | | | | | | - Cédric Paris
- Université de Lorraine, LIBio, F-54505 Vandoeuvre Les Nancy, France
| | - Loic Stefan
- Université de Lorraine, CNRS, LCPM, F-54000 Nancy, France
| | - Caroline Gaucher
- Université de Lorraine, CITHEFOR, F-54505 Vandoeuvre Les Nancy, France
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4
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El Hajj S, Canabady-Rochelle L, Gaucher C. Nature-Inspired Bioactive Compounds: A Promising Approach for Ferroptosis-Linked Human Diseases? Molecules 2023; 28:molecules28062636. [PMID: 36985608 PMCID: PMC10059971 DOI: 10.3390/molecules28062636] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 01/27/2023] [Revised: 03/02/2023] [Accepted: 03/08/2023] [Indexed: 03/16/2023] Open
Abstract
Ferroptosis is a type of cell death driven by iron overload and lipid peroxidation. It is considered a key mechanism in the development of various diseases such as atherosclerosis, Alzheimer, diabetes, cancer, and renal failure. The redox status of cells, such as the balance between intracellular oxidants (lipid peroxides, reactive oxygen species, free iron ions) and antioxidants (glutathione, glutathione Peroxidase 4), plays a major role in ferroptosis regulation and constitutes its principal biomarkers. Therefore, the induction and inhibition of ferroptosis are promising strategies for disease treatments such as cancer or neurodegenerative and cardiovascular diseases, respectively. Many drugs have been developed to exert ferroptosis-inducing and/or inhibiting reactions, such as erastin and iron-chelating compounds, respectively. In addition, many natural bioactive compounds have significantly contributed to regulating ferroptosis and ferroptosis-induced oxidative stress. Natural bioactive compounds are largely abundant in food and plants and have been for a long time, inspiring the development of various low-toxic therapeutic drugs. Currently, functional bioactive peptides are widely reported for their antioxidant properties and application in human disease treatment. The scientific evidence from biochemical and in vitro tests of these peptides strongly supports the existence of a relationship between their antioxidant properties (such as iron chelation) and ferroptosis regulation. In this review, we answer questions concerning ferroptosis milestones, its importance in physiopathology mechanisms, and its downstream regulatory mechanisms. We also address ferroptosis regulatory natural compounds as well as provide promising thoughts about bioactive peptides.
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Affiliation(s)
- Sarah El Hajj
- Université de Lorraine, CITHEFOR, F-54505 Vandoeuvre Les Nancy, France
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France
| | | | - Caroline Gaucher
- Université de Lorraine, CITHEFOR, F-54505 Vandoeuvre Les Nancy, France
- Université de Lorraine, CNRS, IMoPA, F-54000 Nancy, France
- Correspondence:
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5
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El Hajj S, Sepúlveda Rincón CT, Girardet JM, Cakir-Kiefer C, Stefan L, Zapata Montoya JE, Boschi-Muller S, Gaucher C, Canabady-Rochelle L. Electrically Switchable Nanolever Technology for the Screening of Metal-Chelating Peptides in Hydrolysates. J Agric Food Chem 2021; 69:8819-8827. [PMID: 34324321 DOI: 10.1021/acs.jafc.1c02199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Metal-chelating peptides (MCP) are considered as indirect antioxidants due to their capacity to inhibit radical chain reaction and oxidation. Here, we propose a new proof of concept for the screening of MCPs present in protein hydrolysates for valorizing their antioxidant properties by using the emerging time-resolved molecular dynamics technology, switchSENSE. This method unveils possible interactions between MCPs and immobilized nickel ions using fluorescence and electro-switchable DNA chips. The switchSENSE method was first set up on synthetic peptides known for their metal-chelating properties. Then, it was applied to soy and tilapia viscera protein hydrolysates. Their Cu2+-chelation capacity was, in addition, determined by UV-visible spectrophotometry as a reference method. The switchSENSE method has displayed a high sensitivity to evidence the presence of MCPs in both hydrolysates. Hence, we demonstrate for the first time that this newly introduced technology is a convenient methodology to screen protein hydrolysates in order to determine the presence of MCPs before launching time-consuming separations.
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Affiliation(s)
- Sarah El Hajj
- Université de Lorraine, CNRS, LRGP, Nancy F-54000, France
- Université de Lorraine, CITHEFOR, Vandoeuvre Les Nancy F-54505, France
| | - Cindy Tatiana Sepúlveda Rincón
- Université de Lorraine, CNRS, LRGP, Nancy F-54000, France
- Nutrition & Food Technology Group, Universidad de Antioquia, Medellín 050010, Colombia
| | | | | | - Loic Stefan
- Université de Lorraine, CNRS, LCPM, Nancy F-54000, France
| | | | | | - Caroline Gaucher
- Université de Lorraine, CITHEFOR, Vandoeuvre Les Nancy F-54505, France
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6
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Bonetti J, Corti A, Lerouge L, Pompella A, Gaucher C. Phenotypic Modulation of Macrophages and Vascular Smooth Muscle Cells in Atherosclerosis-Nitro-Redox Interconnections. Antioxidants (Basel) 2021; 10:antiox10040516. [PMID: 33810295 PMCID: PMC8066740 DOI: 10.3390/antiox10040516] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 02/06/2023] Open
Abstract
Monocytes/macrophages and vascular smooth muscle cells (vSMCs) are the main cell types implicated in atherosclerosis development, and unlike other mature cell types, both retain a remarkable plasticity. In mature vessels, differentiated vSMCs control the vascular tone and the blood pressure. In response to vascular injury and modifications of the local environment (inflammation, oxidative stress), vSMCs switch from a contractile to a secretory phenotype and also display macrophagic markers expression and a macrophagic behaviour. Endothelial dysfunction promotes adhesion to the endothelium of monocytes, which infiltrate the sub-endothelium and differentiate into macrophages. The latter become polarised into M1 (pro-inflammatory), M2 (anti-inflammatory) or Mox macrophages (oxidative stress phenotype). Both monocyte-derived macrophages and macrophage-like vSMCs are able to internalise and accumulate oxLDL, leading to formation of “foam cells” within atherosclerotic plaques. Variations in the levels of nitric oxide (NO) can affect several of the molecular pathways implicated in the described phenomena. Elucidation of the underlying mechanisms could help to identify novel specific therapeutic targets, but to date much remains to be explored. The present article is an overview of the different factors and signalling pathways implicated in plaque formation and of the effects of NO on the molecular steps of the phenotypic switch of macrophages and vSMCs.
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Affiliation(s)
- Justine Bonetti
- CITHEFOR, Université de Lorraine, F-54000 Nancy, France; (J.B.); (L.L.); (C.G.)
| | - Alessandro Corti
- Department of Translational Research NTMS, University of Pisa Medical School, 56126 Pisa, Italy;
| | - Lucie Lerouge
- CITHEFOR, Université de Lorraine, F-54000 Nancy, France; (J.B.); (L.L.); (C.G.)
| | - Alfonso Pompella
- Department of Translational Research NTMS, University of Pisa Medical School, 56126 Pisa, Italy;
- Correspondence: ; Tel.: +39-050-2218-537
| | - Caroline Gaucher
- CITHEFOR, Université de Lorraine, F-54000 Nancy, France; (J.B.); (L.L.); (C.G.)
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7
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Zhou Y, Gaucher C, Fries I, Hobekkaya MA, Martin C, Leonard C, Deschamps F, Sapin-Minet A, Parent M. Challenging development of storable particles for oral delivery of a physiological nitric oxide donor. Nitric Oxide 2020; 104-105:1-10. [PMID: 32771473 DOI: 10.1016/j.niox.2020.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/28/2020] [Accepted: 08/03/2020] [Indexed: 12/31/2022]
Abstract
Nitric oxide (NO) deficiency is often associated with several acute and chronic diseases. NO donors and especially S-nitrosothiols such as S-nitrosoglutathione (GSNO) have been identified as promising therapeutic agents. Although their permeability through the intestinal barrier have recently be proved, suitable drug delivery systems have to be designed for their oral administration. This is especially challenging due to the physico-chemical features of these drugs: high hydrophilicity and high lability. In this paper, three types of particles were prepared with an Eudragit® polymer: nanoparticles and microparticles obtained with a water-in-oil-in-water emulsion/evaporation process versus microparticles obtained with a solid-in-oil-in-water emulsion/evaporation process. They had a similar encapsulation efficiency (around 30%), and could be freeze-dried then be stored at least one month without modification of their critical attributes (size and GSNO content). However, microparticles had a slightly slower in vitro release of GSNO than nanoparticles, and were able to boost by a factor of two the drug intestinal permeability (Caco-2 model). Altogether, this study brings new data about GSNO intestinal permeability and three ready-to-use formulations suitable for further preclinical studies with oral administration.
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Affiliation(s)
- Yi Zhou
- Université de Lorraine, CITHEFOR, F-54000, Nancy, France
| | | | - Isabelle Fries
- Université de Lorraine, CITHEFOR, F-54000, Nancy, France
| | | | | | - Clément Leonard
- StaniPharm, 5 Rue Jacques Monod, BP 10, 54250, Champigneulles, France
| | - Frantz Deschamps
- StaniPharm, 5 Rue Jacques Monod, BP 10, 54250, Champigneulles, France
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8
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Forero Ramirez LM, Boudier A, Gaucher C, Babin J, Durand A, Six JL, Nouvel C. Dextran-covered pH-sensitive oily core nanocapsules produced by interfacial Reversible Addition-Fragmentation chain transfer miniemulsion polymerization. J Colloid Interface Sci 2020; 569:57-67. [DOI: 10.1016/j.jcis.2020.02.066] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/15/2020] [Accepted: 02/16/2020] [Indexed: 01/06/2023]
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9
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Corti A, Gaucher C, Pompella A. Editorial: Targeting Monocytes/Macrophages to Treat Atherosclerotic Inflammation. Front Pharmacol 2020; 11:86. [PMID: 32116730 PMCID: PMC7033601 DOI: 10.3389/fphar.2020.00086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 01/27/2020] [Indexed: 11/13/2022] Open
Affiliation(s)
- Alessandro Corti
- Dipartimento di Ricerca Traslazionale NTMC, Scuola Medica dell'Università di Pisa, Pisa, Italy
| | | | - Alfonso Pompella
- Dipartimento di Ricerca Traslazionale NTMC, Scuola Medica dell'Università di Pisa, Pisa, Italy
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10
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Alhasan R, Kharma A, Leroy P, Jacob C, Gaucher C. Selenium Donors at the Junction of Inflammatory Diseases. Curr Pharm Des 2020; 25:1707-1716. [PMID: 31267853 DOI: 10.2174/1381612825666190701153903] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 06/18/2019] [Indexed: 12/25/2022]
Abstract
Selenium is an essential non-metal trace element, and the imbalance in the bioavailability of selenium is associated with many diseases ranking from acute respiratory distress syndrome, myocardial infarction and renal failure (Se overloading) to diseases associated with chronic inflammation like inflammatory bowel diseases, rheumatoid arthritis, and atherosclerosis (Se unload). The only source of selenium is the diet (animal and cereal sources) and its intestinal absorption is limiting for selenocysteine and selenomethionine synthesis and incorporation in selenoproteins. In this review, after establishing the link between selenium and inflammatory diseases, we envisaged the potential of selenium nanoparticles and organic selenocompounds to compensate the deficit of selenium intake from the diet. With high selenium loading, nanoparticles offer a low dosage to restore selenium bioavailability whereas organic selenocompounds can play a role in the modulation of their antioxidant or antiinflammatory activities.
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Affiliation(s)
- Rama Alhasan
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbrucken, Germany
| | - Ammar Kharma
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbrucken, Germany
| | - Pierre Leroy
- Universite de Lorraine, CITHEFOR, F-54000 Nancy, France
| | - Claus Jacob
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbrucken, Germany
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Perrin-Sarrado C, Zhou Y, Salgues V, Parent M, Giummelly P, Lartaud I, Gaucher C. S-Nitrosothiols as potential therapeutics to induce a mobilizable vascular store of nitric oxide to counteract endothelial dysfunction. Biochem Pharmacol 2020; 173:113686. [DOI: 10.1016/j.bcp.2019.113686] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 10/24/2019] [Indexed: 12/14/2022]
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12
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Wu W, Chen M, Luo T, Fan Y, Zhang J, Zhang Y, Zhang Q, Sapin-Minet A, Gaucher C, Xia X. ROS and GSH-responsive S-nitrosoglutathione functionalized polymeric nanoparticles to overcome multidrug resistance in cancer. Acta Biomater 2020; 103:259-271. [PMID: 31846803 DOI: 10.1016/j.actbio.2019.12.016] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 12/11/2019] [Accepted: 12/12/2019] [Indexed: 12/27/2022]
Abstract
Multidrug resistance of cancer cells is one of the major obstacle for chemotherapeutic efficiency. Nitric oxide (NO) has raised the potential to overcome multidrug resistance (MDR) with low side effects. Herein, we report a reactive oxygen species (ROS) and glutathione (GSH) responsive nanoparticle for the delivery of NO prodrug such as S-nitrosoglutathione (GSNO), which was chemically conjugated to an amphiphilic block copolymer. The GSNO functionalized nanoparticles show high NO loading capacity, good stability and sustained NO release with specific GSH activated NO-releasing kinetics. Such GSNO functionalized nanoparticles delivered doxorubicin (DOX) in a ROS triggered manner and increased the intracellular accumulation of DOX. However, in normal healthy cells, showing physiological concentrations of ROS, these nanoparticles presented good biocompatibility. The present work indicated that these multifunctional nanoparticles can serve as effective co-delivery platforms of NO and DOX to selectively kill chemo-resistant cancer cells through increasing chemo-sensitivity. STATEMENT OF SIGNIFICANCE: In this work, we constructed nitric oxide donor (S-nitrosoglutathione, GSNO) functionalized amphiphilic copolymer (PEG-PPS-GSNO) to deliver doxorubicin (DOX). The developed PEG-PPS-GSNO@DOX nanoparticles presented high NO capacity, ROS triggered DOX release and GSH triggered NO release. Thus NO reversed the chemo-resistance in HepG2/ADR cells increasing intrcellular accumulation of DOX. Furthermore, these PEG-PPS-GSNO@DOX nanoparticles exhibited biocompatibility to healthy cells and toxicity to cancer cells, due to elevated ROS.
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13
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Forero Ramirez LM, Babin J, Boudier A, Gaucher C, Schmutz M, Er-Rafik M, Durand A, Six JL, Nouvel C. First multi-reactive polysaccharide-based transurf to produce potentially biocompatible dextran-covered nanocapsules. Carbohydr Polym 2019; 224:115153. [DOI: 10.1016/j.carbpol.2019.115153] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 07/17/2019] [Accepted: 07/31/2019] [Indexed: 12/20/2022]
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14
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Fan Y, Wu W, Lei Y, Gaucher C, Pei S, Zhang J, Xia X. Edaravone-Loaded Alginate-Based Nanocomposite Hydrogel Accelerated Chronic Wound Healing in Diabetic Mice. Mar Drugs 2019; 17:md17050285. [PMID: 31083588 PMCID: PMC6562986 DOI: 10.3390/md17050285] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [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: 04/10/2019] [Revised: 04/30/2019] [Accepted: 05/08/2019] [Indexed: 11/16/2022] Open
Abstract
Refractory wound healing is one of the most common complications of diabetes. Excessive production of reactive oxygen species (ROS) can cause chronic inflammation and thus impair cutaneous wound healing. Scavenging these ROS in wound dressing may offer effective treatment for chronic wounds. Here, a nanocomposite hydrogel based on alginate and positively charged Eudragit nanoparticles containing edaravone, an efficient free radical scavenger, was developed for maximal ROS sequestration. Eudragit nanoparticles enhanced edaravone solubility and stability breaking the limitations in application. Furthermore, loading these Eudragit nanoparticles into an alginate hydrogel increased the protection and sustained the release of edaravone. The nanocomposite hydrogel is shown to promote wound healing in a dose-dependent way. A low dose of edaravone-loaded nanocomposite hydrogel accelerated wound healing in diabetic mice. On the contrary, a high dose of edaravone might hamper the healing. Those results indicated the dual role of ROS in chronic wounds. In addition, the discovery of this work pointed out that dose could be the key factor limiting the translational application of antioxidants in wound healing.
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Affiliation(s)
- Ying Fan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China.
| | - Wen Wu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China.
| | - Yu Lei
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqiang 401331, China.
| | - Caroline Gaucher
- Faculté de pharmacé, Université de Lorraine, CITHEFOR F-54000 Nancy CEDEX, France.
| | - Shuchen Pei
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqiang 401331, China.
| | - Jinqiang Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China.
| | - Xuefeng Xia
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China.
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15
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Bouressam ML, Lecat S, Raoul A, Gaucher C, Perrin-Sarrado C, Lartaud I, Dupuis F. S-nitrosoglutathione inhibits cerebrovascular angiotensin II-dependent and -independent AT 1 receptor responses: A possible role of S-nitrosation. Br J Pharmacol 2019; 176:2049-2062. [PMID: 30822355 DOI: 10.1111/bph.14644] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 01/21/2019] [Accepted: 02/13/2019] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND AND PURPOSE Angiotensin II (AngII) and NO regulate the cerebral circulation. AngII AT1 receptors exert ligand-dependent and ligand-independent (myogenic tone [MT]) vasoconstriction of cerebral vessels. NO induces post-translational modifications of proteins such as S-nitrosation (redox modification of cysteine residues). In cultured cells, S-nitrosation decreases AngII's affinity for the AT1 receptor. The present work evaluated the functional consequences of S-nitrosation on both AngII-dependent and AngII-independent cerebrovascular responses. EXPERIMENTAL APPROACH S-Nitrosation was induced in rat isolated middle cerebral arteries by pretreatment with the NO donors, S-nitrosoglutathione (GSNO) or sodium nitroprusside (SNP). Agonist-dependent activation of AT1 receptors was evaluated by obtaining concentration-response curves to AngII. Ligand-independent activation of AT1 receptors was evaluated by calculating MT (active vs. passive diameter) at pressures ranging from 20 to 200 mmHg in the presence or not of a selective AT1 receptor inverse agonist. KEY RESULTS GSNO or SNP completely abolished the AngII-dependent AT1 receptor-mediated vasoconstriction of cerebral arteries. GSNO had no impact on responses to other vasoconstrictors sharing (phenylephrine, U46619) or not (5-HT) the same signalling pathway. MT was reduced by GSNO, and the addition of losartan did not further decrease MT, suggesting that GSNO blocks AT1 receptor-dependent MT. Ascorbate (which reduces S-nitrosated compounds) restored the response to AngII but not the soluble GC inhibitor ODQ, suggesting that these effects are mediated by S-nitrosation rather than by S-nitrosylation. CONCLUSIONS AND IMPLICATIONS In rat middle cerebral arteries, GSNO pretreatment specifically affects the AT1 receptor and reduces both AngII-dependent and AngII-independent activation, most likely through AT1 receptor S-nitrosation.
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Affiliation(s)
| | - Sandra Lecat
- BSC UMR7242 "GPCRs, pain and inflammation" team, CNRS, Université de Strasbourg Labex Medalis, Illkirch, France
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Alhasan R, Nasim MJ, Jacob C, Gaucher C. Selenoneine: a Unique Reactive Selenium Species From the Blood of Tuna With Implications for Human Diseases. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s40495-019-00175-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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17
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Tur JA, Jacob C, Chaimbault P, Tadayyon M, Richling E, Hermans N, Nunes dos Santos C, Diederich M, Giblin L, Elhabiri M, Gaucher C, Andreoletti P, Fernandes A, Davies M, Bartoszek A, Cherkaoui-Malki M. Personalized nutrition in ageing society: redox control of major-age related diseases through the NutRedOx Network (COST Action CA16112). Free Radic Res 2019; 53:1163-1170. [DOI: 10.1080/10715762.2019.1572890] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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)
- Josep A. Tur
- Research Group on Community Nutrition and Oxidative Stress, University of the Balearic Islands & CIBEROBN (Physiopathology of Obesity and Nutrition CB12/03/30038), Palma de Mallorca, Spain
| | - Claus Jacob
- Department of Pharmacy, Bioorganic Chemistry, Saarland State University, Saarbrücken, Germany
| | | | | | - Elke Richling
- Department of Chemistry, Division of Food Chemistry & Toxicology, Technic University of Kaiserslautern, Kaiserslautern, Germany
| | - Nina Hermans
- Department of Pharmaceutical Sciences, Research Group NatuRA - Natural Products and Food Research & Analysis, University of Antwerp, Antwerp, Belgium
| | - Claudia Nunes dos Santos
- Institute of Experimental and Technic Biology, Oeiras, Portugal
- Institute of Chemical and Biological Technology ‘António Xavier’, New University of Lisbon, Lisboa, Portugal
| | - Marc Diederich
- Laboratory of Molecular and Cellular Biology of Cancer, Hospital Kirchberg, Luxembourg, Europe
- College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Linda Giblin
- Teagasc Food Research Centre, Moorepark, Fermoy Co., Cork, Ireland
| | - Mourad Elhabiri
- Laboratory of Molecular Innovation and Applications, University of Strasbourg, Strasbourg, France
| | | | - Pierre Andreoletti
- Bio-PeroxIL, UFR of Life, Earth and Environmental Sciences, University of Bourgogne, Dijon, France
| | - Ana Fernandes
- CBIOS, Lusofona University Research Center for Biosciences & Health Technologies, Lisboa, Portugal
| | - Michael Davies
- Department of Biomedical Sciences, Panum Institute, University of Copenhagen, Copenhagen, Denmark
| | - Agnieszka Bartoszek
- Department of Chemistry, Technology and Biotechnology – Food, Faculty of Chemistry, Gdansk, Poland
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18
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Yu H, Bonetti J, Gaucher C, Fries I, Vernex-Loset L, Leroy P, Chaimbault P. Higher-energy collision-induced dissociation for the quantification by liquid chromatography/tandem ion trap mass spectrometry of nitric oxide metabolites coming from S-nitroso-glutathione in an in vitro model of the intestinal barrier. Rapid Commun Mass Spectrom 2019; 33:1-11. [PMID: 30248720 DOI: 10.1002/rcm.8287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 09/14/2018] [Accepted: 09/14/2018] [Indexed: 06/08/2023]
Abstract
RATIONALE The potency of S-nitrosoglutathione (GSNO) as a nitric oxide (NO) donor to treat cardiovascular diseases (CVDs) has been highlighted in numerous studies. In order to study its bioavailability after oral administration, which represents the most convenient route for the chronic treatment of CVDs, it is essential to develop an analytical method permitting (i) the simultaneous measurement of GSNO metabolites, i.e. nitrite, S-nitrosothiols (RSNOs) and nitrate and (ii) to distinguish them from other sources (endogenous synthesis and diet). METHODS Exogenous GSNO was labeled with 15 N, and the GS15 NO metabolites after conversion into the nitrite ion were derivatized with 2,3-diaminonaphthalene. The resulting 2,3-naphthotriazole was quantified by liquid chromatography/tandem ion trap mass spectrometry (LC/ITMS/MS) in multiple reaction monitoring mode after Higher-energy Collision-induced Dissociation (HCD). Finally, the validated method was applied to an in vitro model of the intestinal barrier (monolayer of Caco-2 cells) to study GS15 NO intestinal permeability. RESULTS A LC/ITMS/MS method based on an original transition (m/z 171 to 156) for sodium 15 N-nitrite, GS15 NO and sodium 15 N-nitrate measurements was validated, with recoveries of 100.8 ± 3.8, 98.0 ± 2.7 and 104.1 ± 3.3%, respectively. Intra- and inter-day variabilities were below 13.4 and 12.6%, and the limit of quantification reached 5 nM (signal over blank = 4). The permeability of labeled GS15 NO (10-100 μM) was evaluated by calculating its apparent permeability coefficient (Papp ). CONCLUSIONS A quantitative LC/ITMS/MS method using HCD was developed for the first time to selectively monitor GS15 NO metabolites. The assay allowed evaluation of GS15 NO intestinal permeability and situated this drug candidate within the middle permeability class according to FDA guidelines. In addition, the present method has opened the perspective of a more fundamental work aiming at studying the fragmentation mechanism leading to the ion at m/z 156 in HCD tandem mass spectrometry in the presence of acetonitrile.
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Affiliation(s)
- Haiyan Yu
- CITHEFOR, Université de Lorraine, F-54000, Nancy, France
| | | | | | - Isabelle Fries
- CITHEFOR, Université de Lorraine, F-54000, Nancy, France
| | | | - Pierre Leroy
- CITHEFOR, Université de Lorraine, F-54000, Nancy, France
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19
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Alhasan R, Kharma A, Nasim MJ, Abdin AY, Bonetti J, Giummelly P, Ejike CECC, Leroy P, Gaucher C, Jacob C. Flush with a flash: natural three-component antimicrobial combinations based on S-nitrosothiols, controlled superoxide formation and "domino" reactions leading to peroxynitrite. Medchemcomm 2018; 9:1994-1999. [PMID: 30647877 PMCID: PMC6301271 DOI: 10.1039/c8md00414e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 10/21/2018] [Indexed: 11/21/2022]
Abstract
S-Nitrosothiols are ˙NO releasing agents renowned for vasodilatory and antioxidant properties. O2˙- promotes their decomposition, forming highly aggressive peroxynitrite ions (ONOO-). Since the production of O2˙- can be controlled by enzymes or by visible light, such otherwise harmless components can be turned into effective antimicrobial and nematicidal combinations with numerous potential applications in medicine.
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Affiliation(s)
- Rama Alhasan
- Division of Bioorganic Chemistry , School of Pharmacy , Saarland University , D-66123 Saarbruecken , Germany .
| | - Ammar Kharma
- Division of Bioorganic Chemistry , School of Pharmacy , Saarland University , D-66123 Saarbruecken , Germany .
| | - Muhammad Jawad Nasim
- Division of Bioorganic Chemistry , School of Pharmacy , Saarland University , D-66123 Saarbruecken , Germany .
| | - Ahmad Yaman Abdin
- Division of Bioorganic Chemistry , School of Pharmacy , Saarland University , D-66123 Saarbruecken , Germany .
| | | | | | - Chukwunonso E C C Ejike
- Division of Bioorganic Chemistry , School of Pharmacy , Saarland University , D-66123 Saarbruecken , Germany .
- Department of Medical Biochemistry , Alex Ekwueme Federal University , Ndufu-Alike , Ebonyi State , Nigeria
| | - Pierre Leroy
- Université de Lorraine , CITHEFOR , F-54000 Nancy , France
| | | | - Claus Jacob
- Division of Bioorganic Chemistry , School of Pharmacy , Saarland University , D-66123 Saarbruecken , Germany .
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20
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Sahyoun T, Gaucher C, Zhou Y, Ouaini N, Schneider R, Arrault A. Synthesis of novel mono and bis nitric oxide donors with high cytocompatibility and release activity. Bioorg Med Chem Lett 2018; 28:3329-3332. [PMID: 30243591 DOI: 10.1016/j.bmcl.2018.09.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 07/09/2018] [Revised: 09/04/2018] [Accepted: 09/07/2018] [Indexed: 02/07/2023]
Abstract
Four compounds bearing amidoxime functions were synthetized: (1) 2a,b bearing an aromatic amidoxime function, (2) 2c bearing an aliphatic amidoxime function, and (3) 2d bearing aromatic and aliphatic amidoximes functions. The ability of these compounds to release NO was evaluated in vitro using the oxidative metabolism of cytochrome P450 from rat liver microsomes. Results obtained demonstrate that all amidoximes were able to release NO with a highest amount of NO produced by the 2a aromatic amidoxime. Moreover, all amidoximes exhibit cytocompatibility with human aorta smooth muscle cells. Using intracellular S-nitrosothiol formation as a marker of NO bioavailability, compounds 2a-c were demonstrated to deliver a higher amount of NO in the intracellular environment than the reference. Considering that the concentration of the bis-amidoxime 2d was two times lower that than of 2a and 2b, we can assume that 2d is the most potent molecule among the tested compounds for NO release.
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Affiliation(s)
- Tanya Sahyoun
- Laboratoire de Chimie Physique Macromoléculaire, Université de Lorraine, CNRS, LCPM, F-54000 Nancy, France; Faculty of Sciences, Holy Spirit University of Kaslik, BP446, Jounieh, Mount Lebanon, Lebanon
| | | | - Yi Zhou
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France
| | - Naïm Ouaini
- Faculty of Sciences, Holy Spirit University of Kaslik, BP446, Jounieh, Mount Lebanon, Lebanon
| | - Raphaël Schneider
- Laboratoire Réactions et Génie des Procédés, Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France
| | - Axelle Arrault
- Laboratoire de Chimie Physique Macromoléculaire, Université de Lorraine, CNRS, LCPM, F-54000 Nancy, France.
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21
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Meyer D, Fressinaud E, Gaucher C, Lavergne JM, Hilbert L, Ribba AS, Jorieux S, Mazurier C. Gene Defects in 150 Unrelated French Cases with Type 2 von Willebrand Disease: from the Patient to the Gene. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1657568] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- D Meyer
- INSERM U.143, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - E Fressinaud
- INSERM U.143, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | | | - J-M Lavergne
- INSERM U.143, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | | | - A-S Ribba
- INSERM U.143, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
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22
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Bonetti J, Zhou Y, Parent M, Clarot I, Yu H, Fries-Raeth I, Leroy P, Lartaud I, Gaucher C. Intestinal absorption of S-nitrosothiols: Permeability and transport mechanisms. Biochem Pharmacol 2018; 155:21-31. [PMID: 29935960 DOI: 10.1016/j.bcp.2018.06.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 04/12/2018] [Accepted: 06/19/2018] [Indexed: 12/29/2022]
Abstract
S-Nitrosothiols, a class of NO donors, demonstrate potential benefits for cardiovascular diseases. Drugs for such chronic diseases require long term administration preferentially through the oral route. However, the absorption of S-nitrosothiols by the intestine, which is the first limiting barrier for their vascular bioavailability, is rarely evaluated. Using an in vitro model of intestinal barrier, based on human cells, the present work aimed at elucidating the mechanisms of intestinal transport (passive or active, paracellular or transcellular pathway) and at predicting the absorption site of three S-nitrosothiols: S-nitrosoglutathione (GSNO), S-nitroso-N-acetyl-l-cysteine (NACNO) and S-nitroso-N-acetyl-d-penicillamine (SNAP). These S-nitrosothiols include different skeletons carrying the nitroso group, which confer different physico-chemical characteristics and biological activities (antioxidant and anti-inflammatory). According to the values of apparent permeability coefficient, the three S-nitrosothiols belong to the medium class of permeability. The evaluation of the bidirectional apparent permeability demonstrated a passive diffusion of the three S-nitrosothiols. GSNO and NACNO preferentially cross the intestinal barrier though the transcellular pathway, while SNAP followed both the trans- and paracellular pathways. Finally, the permeability of NACNO was favoured at pH 6.4, which is close to the pH of the jejunal part of the intestine. Through this study, we determined the absorption mechanisms of S-nitrosothiols and postulated that they can be administrated through the oral route.
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Affiliation(s)
| | - Yi Zhou
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France
| | | | - Igor Clarot
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France
| | - Haiyan Yu
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France
| | | | - Pierre Leroy
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France
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Gaucher C, Boudier A, Bonetti J, Clarot I, Leroy P, Parent M. Glutathione: Antioxidant Properties Dedicated to Nanotechnologies. Antioxidants (Basel) 2018; 7:E62. [PMID: 29702624 PMCID: PMC5981248 DOI: 10.3390/antiox7050062] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 04/20/2018] [Accepted: 04/25/2018] [Indexed: 02/06/2023] Open
Abstract
Which scientist has never heard of glutathione (GSH)? This well-known low-molecular-weight tripeptide is perhaps the most famous natural antioxidant. However, the interest in GSH should not be restricted to its redox properties. This multidisciplinary review aims to bring out some lesser-known aspects of GSH, for example, as an emerging tool in nanotechnologies to achieve targeted drug delivery. After recalling the biochemistry of GSH, including its metabolism pathways and redox properties, its involvement in cellular redox homeostasis and signaling is described. Analytical methods for the dosage and localization of GSH or glutathiolated proteins are also covered. Finally, the various therapeutic strategies to replenish GSH stocks are discussed, in parallel with its use as an addressing molecule in drug delivery.
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Affiliation(s)
| | - Ariane Boudier
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France.
| | | | - Igor Clarot
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France.
| | - Pierre Leroy
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France.
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Umerska A, Gaucher C, Oyarzun-Ampuero F, Fries-Raeth I, Colin F, Villamizar-Sarmiento MG, Maincent P, Sapin-Minet A. Polymeric Nanoparticles for Increasing Oral Bioavailability of Curcumin. Antioxidants (Basel) 2018; 7:antiox7040046. [PMID: 29587350 PMCID: PMC5946112 DOI: 10.3390/antiox7040046] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 03/19/2018] [Accepted: 03/22/2018] [Indexed: 02/06/2023] Open
Abstract
Despite the promising biological and antioxidant properties of curcumin, its medical applications are limited due to poor solubility in water and low bioavailability. Polymeric nanoparticles (NPs) adapted to oral delivery may overcome these drawbacks. Properties such as particle size, zeta potential, morphology and encapsulation efficiency were assessed. Then, the possibility of storing these NPs in a solid-state form obtained by freeze-drying, in vitro curcumin dissolution and cytocompatibility towards intestinal cells were evaluated. Curcumin-loaded Eudragit® RLPO (ERL) NPs showed smaller particle diameters (245 ± 2 nm) and better redispersibility after freeze-drying than either poly(lactic-co-glycolic acid) (PLGA) or polycaprolactone (PCL) NPs. The former NPs showed lower curcumin encapsulation efficiency (62%) than either PLGA or PCL NPs (90% and 99%, respectively). Nevertheless, ERL NPs showed rapid curcumin release with 91 ± 5% released over 1 h. The three curcumin-loaded NPs proposed in this work were also compatible with intestinal cells. Overall, ERL NPs are the most promising vehicles for increasing the oral bioavailability of curcumin.
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Affiliation(s)
- Anita Umerska
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (A.U.); (I.F.-R.); (F.C.); (P.M.); (A.S.-M.)
| | - Caroline Gaucher
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (A.U.); (I.F.-R.); (F.C.); (P.M.); (A.S.-M.)
- Correspondence: ; Tel.: +33-3-72-74-73-49
| | - Felipe Oyarzun-Ampuero
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, 758-0150 Santiago, Chile; (F.O.-A.); (M.G.V.-S.)
| | - Isabelle Fries-Raeth
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (A.U.); (I.F.-R.); (F.C.); (P.M.); (A.S.-M.)
| | - Florence Colin
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (A.U.); (I.F.-R.); (F.C.); (P.M.); (A.S.-M.)
| | - María Gabriela Villamizar-Sarmiento
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, 758-0150 Santiago, Chile; (F.O.-A.); (M.G.V.-S.)
| | - Philippe Maincent
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (A.U.); (I.F.-R.); (F.C.); (P.M.); (A.S.-M.)
| | - Anne Sapin-Minet
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (A.U.); (I.F.-R.); (F.C.); (P.M.); (A.S.-M.)
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Jenkins PV, Gaucher C, Meriane E, Collins PW, Pasi KJ, Mazurier C, Hilbert L. Type 2M vWD Resulting from a Lysine Deletion within a Four Lysine Residue Repeat in the A1 Loop of von Willebrand Factor. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1613995] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryType 1 von Willebrand disease is characterized by a decreased plasma concentration of functionally normal von Willebrand factor (vWF) whereas type 2M is characterised by an abnormal vWF displaying decreased affinity for platelets. In these two types of patients, the multimeric structure of vWF is normal.We report here the identification, in two unrelated families from the UK and Algeria, of an in-frame 3 bp deletion, at the heterozygous state, resulting in the deletion of a lysine residue within a four lysine repeat at position 642-645 of the mature vWF subunit (del K1405-1408 in prepro vWF). The patients who have a discrepancy between vWF antigen level and vWF ristocetin cofactor activity exhibited decreased ristocetin-induced binding but only a slight decrease in the percentage of high molecular weight (HMW) multimers in plasma.Recombinant vWF harbouring this deletion did not bind to platelet GPIb in the presence of ristocetin or botrocetin although the protein is multimerized. Consequently, this lysine deletion was considered as a type 2M vWD mutation.
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Standen GR, Mazurier C, Gaucher C, Cumming A, Keeney S, Bidwell J, Bowen DJ. Type 2N von Willebrand Disease: Rapid Genetic Diagnosis of G2811A (R854Q), C2696T (R816W), T2701A (H817Q) and G2823T (C858F) – Detection of a Novel Candidate Type 2N Mutation: C2810T (R854W). Thromb Haemost 2017. [DOI: 10.1055/s-0037-1615134] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryThe majority of patients with type 2N von Willebrand disease (VWD type 2N) have mutations in the region of the von Willebrand factor (VWF) gene encoding the factor VIII binding domain of VWF. Two mutations predominate among VWD type 2N patients: G2811A and C2696T, which respectively bring about the amino acid substitutions R854Q and R816W in VWF. Several other mutations have been found in VWD type 2N, including T2701A (H817Q) and G2823T (C858F). We have developed a genetic test which permits rapid screening for these four mutations in a single polymerase chain reaction (PCR). The test employs induced heteroduplex formation using two universal heteroduplex generators, one of which detects G2811A (R854Q) and G2823T (C858F), the other detects C2696T (R816W) and T2701A (H817Q). The allele frequency of the common G2811A (R854Q) mutation was investigated in the local (S. Wales) population by examination of 216 VWF genes (108 individuals) and was found to be 0.01. The heteroduplex-based test additionally detected a novel candidate type 2N mutation, C2810T (R854W) and a previously described polymorphism, G2805A (R852Q). The polymorphism showed allele frequencies of 0.92 (G nucleotide) and 0.08 (A nucleotide) in the population study.
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Merametdjian L, Beck-Cormier S, Bon N, Couasnay G, Sourice S, Guicheux J, Gaucher C, Beck L. Expression of Phosphate Transporters during Dental Mineralization. J Dent Res 2017; 97:209-217. [PMID: 28892649 DOI: 10.1177/0022034517729811] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [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: 12/24/2022] Open
Abstract
The importance of phosphate (Pi) as an essential component of hydroxyapatite crystals suggests a key role for membrane proteins controlling Pi uptake during mineralization in the tooth. To clarify the involvement of the currently known Pi transporters (Slc17a1, Slc34a1, Slc34a2, Slc34a3, Slc20a1, Slc20a2, and Xpr1) during tooth development and mineralization, we determined their spatiotemporal expression in murine tooth germs from embryonic day 14.5 to postnatal day 15 and in human dental samples from Nolla stages 6 to 9. Using real-time polymerase chain reaction, in situ hybridization, immunohistochemistry, and X-gal staining, we showed that the expression of Slc17a1, Slc34a1, and Slc34a3 in tooth germs from C57BL/6 mice were very low. In contrast, Slc34a2, Slc20a1, Slc20a2, and Xpr1 were highly expressed, mostly during the postnatal stages. The expression of Slc20a2 was 2- to 10-fold higher than the other transporters. Comparable results were obtained in human tooth germs. In mice, Slc34a2 and Slc20a1 were predominantly expressed in ameloblasts but not odontoblasts, while Slc20a2 was detected neither in ameloblasts nor in odontoblasts. Rather, Slc20a2 was highly expressed in the stratum intermedium and the subodontoblastic cell layer. Although Slc20a2 knockout mice did not show enamel defects, mutant mice showed a disrupted dentin mineralization, displaying unmerged calcospherites at the mineralization front. This latter phenotypical finding raises the possibility that Slc20a2 may play an indirect role in regulating the extracellular Pi availability for mineralizing cells rather than a direct role in mediating Pi transport through mineralizing plasma cell membranes. By documenting the spatiotemporal expression of Pi transporters in the tooth, our data support the possibility that the currently known Pi transporters may be dispensable for the initiation of dental mineralization and may rather be involved later during the tooth mineralization scheme.
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Affiliation(s)
- L Merametdjian
- 1 INSERM, U1229, RMeS, Nantes, France.,2 Université de Nantes, UMR_S1229, UFR Odontologie, Nantes, France.,3 CHU Nantes, PHU 4 OTONN, Nantes, France
| | - S Beck-Cormier
- 1 INSERM, U1229, RMeS, Nantes, France.,2 Université de Nantes, UMR_S1229, UFR Odontologie, Nantes, France
| | - N Bon
- 1 INSERM, U1229, RMeS, Nantes, France.,2 Université de Nantes, UMR_S1229, UFR Odontologie, Nantes, France
| | - G Couasnay
- 1 INSERM, U1229, RMeS, Nantes, France.,2 Université de Nantes, UMR_S1229, UFR Odontologie, Nantes, France
| | - S Sourice
- 1 INSERM, U1229, RMeS, Nantes, France.,2 Université de Nantes, UMR_S1229, UFR Odontologie, Nantes, France
| | - J Guicheux
- 1 INSERM, U1229, RMeS, Nantes, France.,2 Université de Nantes, UMR_S1229, UFR Odontologie, Nantes, France.,3 CHU Nantes, PHU 4 OTONN, Nantes, France
| | - C Gaucher
- 4 Dental School, University Paris Descartes, PRES Sorbonne Paris Cité, Montrouge, France.,5 AP-HP, Odontology Department, Hôpital Albert Chenevier, GHHM, Créteil, France
| | - L Beck
- 1 INSERM, U1229, RMeS, Nantes, France.,2 Université de Nantes, UMR_S1229, UFR Odontologie, Nantes, France
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Belcastro E, Wu W, Fries-Raeth I, Corti A, Pompella A, Leroy P, Lartaud I, Gaucher C. Oxidative stress enhances and modulates protein S -nitrosation in smooth muscle cells exposed to S -nitrosoglutathione. Nitric Oxide 2017; 69:10-21. [DOI: 10.1016/j.niox.2017.07.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 06/30/2017] [Accepted: 07/21/2017] [Indexed: 12/23/2022]
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Collignon AM, Amri N, Lesieur J, Sadoine J, Ribes S, Menashi S, Simon S, Berdal A, Rochefort GY, Chaussain C, Gaucher C. Sclerostin Deficiency Promotes Reparative Dentinogenesis. J Dent Res 2017; 96:815-821. [PMID: 28571484 DOI: 10.1177/0022034517698104] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 12/22/2022] Open
Abstract
In humans, the SOST gene encodes sclerostin, an inhibitor of bone growth and remodeling, which also negatively regulates the bone repair process. Sclerostin has also been implicated in tooth formation, but its potential role in pulp healing remains unknown. The aim of this study was to explore the role of sclerostin in reparative dentinogenesis using Sost knockout mice ( Sost-/-). The pulps of the first maxillary molars were mechanically exposed in 3-mo-old Sost-/- and wild-type (WT) mice ( n = 14 mice per group), capped with mineral trioxide aggregate cement, and the cavities were filled with a bonded composite resin. Reparative dentinogenesis was dynamically followed up by micro-computed tomography and characterized by histological analyses. Presurgical analysis revealed a significantly lower pulp volume in Sost-/- mice compared with WT. At 30 and 49 d postsurgery, a large-forming reparative mineralized bridge, associated with osteopontin-positive mineralization foci, was observed in the Sost-/- pulps, whereas a much smaller bridge was detected in WT. At the longer time points, the bridge, which was associated with dentin sialoprotein-positive cells, had expanded in both groups but remained significantly larger in Sost-/- pulps. Sclerostin expression in the healing WT pulps was detected in the cells neighboring the forming dentin bridge. In vitro, mineralization induced by Sost-/- dental pulp cells (DPCs) was also dramatically enhanced when compared with WT DPCs. These observations were associated with an increased Sost expression in WT cells. Taken together, our data show that sclerostin deficiency hastened reparative dentinogenesis after pulp injury, suggesting that the inhibition of sclerostin may constitute a promising therapeutic strategy for improving the healing of damaged pulps.
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Affiliation(s)
- A-M Collignon
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France.,2 AP-HP, Departments of Odontology, University Hospitals Louis Mourier and Bretonneau "National rare disease center metabolism phosphorus and calcium" (HUPNVS), Rothschild "National rare diseases center MAFACE" (HUEP), Pitié Salpêtrière (HUPSCF) and Albert Chennevier (HUHM), Paris, France
| | - N Amri
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France.,3 INSERM UMRS 1138, Molecular Oral Pathophysiology Team, Paris Diderot and Paris Descartes University USPC, Paris, France
| | - J Lesieur
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - J Sadoine
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - S Ribes
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - S Menashi
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - S Simon
- 2 AP-HP, Departments of Odontology, University Hospitals Louis Mourier and Bretonneau "National rare disease center metabolism phosphorus and calcium" (HUPNVS), Rothschild "National rare diseases center MAFACE" (HUEP), Pitié Salpêtrière (HUPSCF) and Albert Chennevier (HUHM), Paris, France.,3 INSERM UMRS 1138, Molecular Oral Pathophysiology Team, Paris Diderot and Paris Descartes University USPC, Paris, France
| | - A Berdal
- 2 AP-HP, Departments of Odontology, University Hospitals Louis Mourier and Bretonneau "National rare disease center metabolism phosphorus and calcium" (HUPNVS), Rothschild "National rare diseases center MAFACE" (HUEP), Pitié Salpêtrière (HUPSCF) and Albert Chennevier (HUHM), Paris, France.,3 INSERM UMRS 1138, Molecular Oral Pathophysiology Team, Paris Diderot and Paris Descartes University USPC, Paris, France
| | - G Y Rochefort
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France
| | - C Chaussain
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France.,2 AP-HP, Departments of Odontology, University Hospitals Louis Mourier and Bretonneau "National rare disease center metabolism phosphorus and calcium" (HUPNVS), Rothschild "National rare diseases center MAFACE" (HUEP), Pitié Salpêtrière (HUPSCF) and Albert Chennevier (HUHM), Paris, France
| | - C Gaucher
- 1 EA 2496 Laboratory Orofacial Pathologies, Imagery and Biotherapies, Dental School and Life imaging Platform (PIV), University Paris Descartes Sorbonne Paris Cité, Montrouge, France.,2 AP-HP, Departments of Odontology, University Hospitals Louis Mourier and Bretonneau "National rare disease center metabolism phosphorus and calcium" (HUPNVS), Rothschild "National rare diseases center MAFACE" (HUEP), Pitié Salpêtrière (HUPSCF) and Albert Chennevier (HUHM), Paris, France
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Salazar-Bautista SC, Chebil A, Pickaert G, Gaucher C, Jamart-Gregoire B, Durand A, Leonard M. Encapsulation and release of hydrophobic molecules from particles of gelled triglyceride with aminoacid-based low-molecular weight gelators. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2016.11.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Rammal H, Harmouch C, Maerten C, Gaucher C, Boulmedais F, Schaaf P, Voegel JC, Laurent-Maquin D, Menu P, Kerdjoudj H. Upregulation of endothelial gene markers in Wharton's jelly mesenchymal stem cells cultured on polyelectrolyte multilayers. J Biomed Mater Res A 2016; 105:292-300. [PMID: 27797148 DOI: 10.1002/jbm.a.35868] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 06/06/2016] [Revised: 07/26/2016] [Accepted: 08/17/2016] [Indexed: 01/19/2023]
Abstract
Designing convenient substrates is a pertinent parameter that can guide stem cell differentiation. Current research is directed toward differentiating mesenchymal stem cells (MSCs) into endothelial cells (ECs). It is generally accepted that MSCs cannot be easily differentiated into ECs without high concentrations of proangiogenic factors. To guide either bone marrow-derived mesenchymal stem cells (BM-MSCs) and Wharton's jelly-derived mesenchymal stem cells (WJ-MSCs) into ECs-like phenotype, poly(allylamine-hydrochloride)/poly(styrene-sulfonate) multilayers film (PAH/PSS) was used as culture coating and compared to type I collagen (as control coating). After 2 weeks of culture and in absence of angiogenic growth factors, PAH/PSS upregulated KDR, PECAM-1, and CDH5 genes, whereas combining PAH/PSS with endothelial growth media (EGM-2® ) led to the production of respective proteins by WJ-MSCs. In contrast, not fully EC-like phenotype is obtained from the differentiation of BM- or WJ-MSCs cultured on type I collagen. Thus, using PAH/PSS coating in synergy with EGM-2® appears as an ideal condition promoting WJ-MSCs differentiation into ECs-like. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 292-300, 2017.
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Affiliation(s)
- Hassan Rammal
- UMR 7365, Centre National de la Recherche Scientifique, Université de Lorraine, Biopôle, Faculté de Médecine, 9 avenue de la forêt de Haye, Vandœuvre-lès-Nancy, 54505, France.,Equipe d'Accueil 4691 Biomatériaux et Inflammation en Site Osseux, UFR Odontologie, SFR-CAP Santé (FED 4231), Université de Reims Champagne Ardenne, 1 Avenue du Maréchal Juin, Reims, 51100, France
| | - Chaza Harmouch
- UMR 7365, Centre National de la Recherche Scientifique, Université de Lorraine, Biopôle, Faculté de Médecine, 9 avenue de la forêt de Haye, Vandœuvre-lès-Nancy, 54505, France
| | - Clément Maerten
- Institut Charles Sadron, Centre National de la Recherche Scientifique, Université de Strasbourg, 23 Rue du Loess, BP 84047, 67034, Strasbourg Cedex 2, France
| | - Caroline Gaucher
- CITHEFOR EA3452 "Drug targets, formulation and preclinical assessment," Faculté de Pharmacie, Université de Lorraine, Nancy, France
| | - Fouzia Boulmedais
- Institut Charles Sadron, Centre National de la Recherche Scientifique, Université de Strasbourg, 23 Rue du Loess, BP 84047, 67034, Strasbourg Cedex 2, France
| | - Pierre Schaaf
- Institut Charles Sadron, Centre National de la Recherche Scientifique, Université de Strasbourg, 23 Rue du Loess, BP 84047, 67034, Strasbourg Cedex 2, France.,Institut National de la Santé et de la Recherche Médicale, UMR-S 1121, "Biomatériaux et Bioingénierie,", 11 Rue Humann, Strasbourg Cedex, F-67085, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 2 rue Saint Elisabeth, Strasbourg, 67000, France.,University of Strasbourg Institute of Advanced Study, 5 allée du Général Rouvillois, Strasbourg, 67083, France
| | - Jean Claude Voegel
- Institut National de la Santé et de la Recherche Médicale, UMR-S 1121, "Biomatériaux et Bioingénierie,", 11 Rue Humann, Strasbourg Cedex, F-67085, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 2 rue Saint Elisabeth, Strasbourg, 67000, France
| | - Dominique Laurent-Maquin
- Equipe d'Accueil 4691 Biomatériaux et Inflammation en Site Osseux, UFR Odontologie, SFR-CAP Santé (FED 4231), Université de Reims Champagne Ardenne, 1 Avenue du Maréchal Juin, Reims, 51100, France
| | - Patrick Menu
- UMR 7365, Centre National de la Recherche Scientifique, Université de Lorraine, Biopôle, Faculté de Médecine, 9 avenue de la forêt de Haye, Vandœuvre-lès-Nancy, 54505, France
| | - Halima Kerdjoudj
- Equipe d'Accueil 4691 Biomatériaux et Inflammation en Site Osseux, UFR Odontologie, SFR-CAP Santé (FED 4231), Université de Reims Champagne Ardenne, 1 Avenue du Maréchal Juin, Reims, 51100, France
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Wu W, Perrin-Sarrado C, Ming H, Lartaud I, Maincent P, Hu XM, Sapin-Minet A, Gaucher C. Polymer nanocomposites enhance S-nitrosoglutathione intestinal absorption and promote the formation of releasable nitric oxide stores in rat aorta. Nanomedicine: Nanotechnology, Biology and Medicine 2016; 12:1795-1803. [DOI: 10.1016/j.nano.2016.05.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 04/08/2016] [Accepted: 05/05/2016] [Indexed: 02/02/2023]
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33
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Rychter M, Gaucher C, Boudier A, Leroy P, Lulek J. S -Nitrosothiols—NO donors regulating cardiovascular cell proliferation: Insight into intracellular pathway alterations. Int J Biochem Cell Biol 2016; 78:156-161. [DOI: 10.1016/j.biocel.2016.07.003] [Citation(s) in RCA: 14] [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: 03/13/2016] [Revised: 07/04/2016] [Accepted: 07/05/2016] [Indexed: 01/20/2023]
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Holmgren C, Gaucher C, Decerle N, Doméjean S. Minimal intervention dentistry II: part 3. Management of non-cavitated (initial) occlusal caries lesions--non-invasive approaches through remineralisation and therapeutic sealants. Br Dent J 2016; 216:237-43. [PMID: 24603245 DOI: 10.1038/sj.bdj.2014.147] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/15/2013] [Indexed: 11/09/2022]
Abstract
Epidemiological data on dental caries show that prevention and treatment needs have evolved significantly over the past two decades. In younger patients the distribution of caries lesions is mainly found on the occlusal surfaces. The treatment approaches utilised by dentists must evolve to integrate preventive and treatment solutions tailored to the care needs, which are straightforward to implement in the dental office and whose effectiveness is underpinned by scientific evidence. This article aims to describe the principles of non-invasive management of non-cavitated (initial) occlusal caries lesions, based on evidence from recent studies published in the international literature.
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Affiliation(s)
- C Holmgren
- Aide Odontologique Internationale, Montrouge, France
| | - C Gaucher
- AP-HP, Hôpital Albert Chenevier, Service d'Odontologie, Univ Paris Descartes, UFR d'Odontologie, EA 2496, Paris, France
| | - N Decerle
- CHU Clermont-Ferrand, Service d'Odontologie, Hôpital Estaing, F-63003 Clermont-Ferrand, France; Univ Clermont1, UFR d'Odontologie, Centre de Recherche en Odontologie Clinique EA 4847, F-63100 Clermont-Ferrand, France
| | - S Doméjean
- CHU Clermont-Ferrand, Service d'Odontologie, Hôpital Estaing, F-63003 Clermont-Ferrand, France; Univ Clermont1, UFR d'Odontologie, Centre de Recherche en Odontologie Clinique EA 4847, F-63100 Clermont-Ferrand, France
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35
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Wu W, Gaucher C, Fries I, Hu XM, Maincent P, Sapin-Minet A. Polymer nanocomposite particles of S -nitrosoglutathione: A suitable formulation for protection and sustained oral delivery. Int J Pharm 2015; 495:354-361. [DOI: 10.1016/j.ijpharm.2015.08.074] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 08/21/2015] [Accepted: 08/22/2015] [Indexed: 12/20/2022]
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36
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Opsahl-Vital S, Gaucher C, Bardet C, Courson F, Linglart A, Chaussain C. Les maladies pédiatriques à révélation dentaire. Arch Pediatr 2015; 22:151-2. [DOI: 10.1016/s0929-693x(15)30075-0] [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: 10/23/2022]
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37
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Parent M, Boudier A, Fries I, Gostyńska A, Rychter M, Lulek J, Leroy P, Gaucher C. Nitric oxide-eluting scaffolds and their interaction with smooth muscle cells in vitro. J Biomed Mater Res A 2015; 103:3303-11. [PMID: 25809572 DOI: 10.1002/jbm.a.35464] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 09/30/2014] [Revised: 03/06/2015] [Accepted: 03/18/2015] [Indexed: 12/28/2022]
Abstract
Fabrication of scaffolds loaded with nitric oxide (NO) donors (S-nitrosoglutathione, GSNO, and isosorbide mononitrate, ISMN) with suitable cell compatibility and optimized properties for tissue-engineering applications is reported using "in situ" technique. Based on FDA-approved polymer, solvent and dosage forms, this gentle process allowed the incorporation of the GSNO labile drug into scaffolds made of either poly(lactide-co-glycolide) (PLGA) or PLGA/poly(ɛ-caprolactone) (PCL) blend. During scaffolds manufacturing process including washing cycles, NO donors were leached from scaffolds. However, GSNO and ISMN concentrations in the last washing medium (10(-7) M and 10(-4) M, respectively) were in the range of cell suitability for tissue engineering. Further morphological analyses indicated that smoother surfaces with fewer but bigger pores (compatible with cell penetration and ingrowth) were obtained with PLGA in comparison with PLGA/PCL scaffolds. Among all tested matrices, only unloaded PLGA and GSNO-loaded PLGA/PCL exhibited intermediate cell anchorage, with mitochondrial activity close to the control and an increase in protein content, a prognostic for scaffold cell colonization, defining them as promising candidates. Deeper analyses of these two scaffolds looking at intracellular redox balance through reactive oxygen species production, glutathione, S-nitrosothiols, and nitrite ions content exhibited GSNO-loaded PLGA/PCL as the best of all tested 3D scaffolds for tissue engineering.
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Affiliation(s)
- Marianne Parent
- Faculté De Pharmacie, Université De Lorraine, CITHEFOR EA 3452, BP 80403, Nancy Cedex, F-54001, France
| | - Ariane Boudier
- Faculté De Pharmacie, Université De Lorraine, CITHEFOR EA 3452, BP 80403, Nancy Cedex, F-54001, France
| | - Isabelle Fries
- Faculté De Pharmacie, Université De Lorraine, CITHEFOR EA 3452, BP 80403, Nancy Cedex, F-54001, France
| | - Aleksandra Gostyńska
- Faculté De Pharmacie, Université De Lorraine, CITHEFOR EA 3452, BP 80403, Nancy Cedex, F-54001, France.,Department of Pharmaceutical Technology, Faculty of Pharmacy, Poznan University of Medical Sciences, Poland
| | - Marek Rychter
- Faculté De Pharmacie, Université De Lorraine, CITHEFOR EA 3452, BP 80403, Nancy Cedex, F-54001, France.,Department of Pharmaceutical Technology, Faculty of Pharmacy, Poznan University of Medical Sciences, Poland
| | - Janina Lulek
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Poznan University of Medical Sciences, Poland
| | - Pierre Leroy
- Faculté De Pharmacie, Université De Lorraine, CITHEFOR EA 3452, BP 80403, Nancy Cedex, F-54001, France
| | - Caroline Gaucher
- Faculté De Pharmacie, Université De Lorraine, CITHEFOR EA 3452, BP 80403, Nancy Cedex, F-54001, France
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Gaucher C, Domingues-Hamdi É, Prin-Mathieu C, Menu P, Baudin-Creuza V. Interaction of recombinant octameric hemoglobin with endothelial cells. C R Biol 2015; 338:95-102. [DOI: 10.1016/j.crvi.2014.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 11/12/2014] [Accepted: 11/12/2014] [Indexed: 10/24/2022]
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Gaucher C, Boudier A, Dahboul F, Parent M, Leroy P. S-nitrosation/Denitrosation in Cardiovascular Pathologies: Facts and Concepts for the Rational Design of S-nitrosothiols. Curr Pharm Des 2013. [DOI: 10.2174/138161213804143635] [Citation(s) in RCA: 41] [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: 11/22/2022]
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40
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Gaucher C, Boudier A, Dahboul F, Parent M, Leroy P. S-nitrosation/denitrosation in cardiovascular pathologies: facts and concepts for the rational design of S-nitrosothiols. Curr Pharm Des 2013; 19:458-472. [PMID: 22920903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Accepted: 08/15/2012] [Indexed: 06/01/2023]
Abstract
Nitric oxide (•NO) is a physiological mediator of vasorelaxation constitutively synthesized by endothelial nitric oxide synthase. Because •NO has a short half-life, it is stored by proteins through S-nitrosation reactions. S-nitrosation was recently defined as a post-translational modification of proteins for cellular signalling, as important as glycosylation and phosphorylation. Disulfide forming/ isomerizing enzymes like thioredoxin (Trx), protein disulfide isomerase (PDI), which are chaperone proteins, are implicated into transnitrosation reactions, which are the transfer of •NO from one cysteine residue to another one. Furthermore, Trx has been shown to denitrosate S-nitrosoproteins depending on its redox status. S-nitrosation of Trx on Cys residues apart from active site, under nitrosative or oxidative stresses, enhances its activity, thereby reducing intracellular reactive oxygen species. Trx and PDI have therefore an essential role for cell signalling control which leads, among other actions, to cardio and vasculo-protection. The diminution of either •NO synthesis or bioavailability is implicated into a large number of cardiovascular pathologies associated to hypoxia or vasoconstriction like, endothelial dysfunction, arterial hypertension and atherosclerosis. In order to mimic the physiological storage of •NO as S-nitrosothiols, the development of •NO donors should be based on the covalent S-NO bond. The chemical stabilisation of the S-NO bond and protection against enzymatically active proteins such as PDI//Trx are major points for the design of stable compounds. S-nitrosothiols entrapment in innovative formulations (films, gels, microparticles, nanoparticles) is an emerging field in order to stabilise and protect them, and to deliver •NO under a sustained release at the targeted site.
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Affiliation(s)
- Caroline Gaucher
- CITHEFOR-EA 3452, Faculte de Pharmacie, Universite de Lorraine, BP 80403, 54001 Nancy Cedex, France
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41
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Guerrieri A, Gaucher C, Bonte E, Lasfargues JJ. Minimal intervention dentistry: part 4. Detection and diagnosis of initial caries lesions. Br Dent J 2012; 213:551-7. [DOI: 10.1038/sj.bdj.2012.1087] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2012] [Indexed: 11/09/2022]
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42
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Gaucher C, Boudier A, Dahboul F, Parent M, Leroy P. S-nitrosation/Denitrosation in Cardiovascular Pathologies: Facts and Concepts for the Rational Design of S-nitrosothiols. Curr Pharm Des 2012. [DOI: 10.2174/1381612811306030458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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43
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Dahboul F, Leroy P, Maguin Gate K, Boudier A, Gaucher C, Liminana P, Lartaud I, Pompella A, Perrin-Sarrado C. Endothelial γ-glutamyltransferase contributes to the vasorelaxant effect of S-nitrosoglutathione in rat aorta. PLoS One 2012; 7:e43190. [PMID: 22984412 PMCID: PMC3439434 DOI: 10.1371/journal.pone.0043190] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Accepted: 07/20/2012] [Indexed: 11/28/2022] Open
Abstract
S-nitrosoglutathione (GSNO) involved in storage and transport of nitric oxide (•NO) plays an important role in vascular homeostasis. Breakdown of GSNO can be catalyzed by γ-glutamyltransferase (GGT). We investigated whether vascular GGT influences the vasorelaxant effect of GSNO in isolated rat aorta. Histochemical localization of GGT and measurement of its activity were performed by using chromogenic substrates in sections and in aorta homogenates, respectively. The role of GGT in GSNO metabolism was evaluated by measuring GSNO consumption rate (absorbance decay at 334 nm), •NO release was visualized and quantified with the fluorescent probe 4,5-diaminofluorescein diacetate. The vasorelaxant effect of GSNO was assayed using isolated rat aortic rings (in the presence or absence of endothelium). The role of GGT was assessed by stimulating enzyme activity with cosubstrate glycylglycine, as well as using two independent inhibitors, competitive serine borate complex and non-competitive acivicin. Specific GGT activity was histochemically localized in the endothelium. Consumption of GSNO and release of free •NO decreased and increased in presence of serine borate complex and glycylglycine, respectively. In vasorelaxation experiments with endothelium-intact aorta, the half maximal effective concentration of GSNO (EC50 = 3.2±0.5.10−7 M) increased in the presence of the two distinct GGT inhibitors, serine borate complex (1.6±0.2.10−6 M) and acivicin (8.3±0.6.10−7 M), while it decreased with glycylglycine (4.7±0.9.10−8 M). In endothelium-denuded aorta, EC50 for GSNO alone increased to 2.3±0.3.10−6 M, with no change in the presence of serine borate complex. These data demonstrate the important role of endothelial GGT activity in mediating the vasorelaxant effect of GSNO in rat aorta under physiological conditions. Because therapeutic treatments based on GSNO are presently under development, this endothelium-dependent mechanism involved in the vascular effects of GSNO should be taken into account in a pharmacological perspective.
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Affiliation(s)
- Fatima Dahboul
- EA3452 CITHEFOR “Drug targets, formulation and preclinical assessment”, Faculté de Pharmacie, Université de Lorraine, Nancy, France
| | - Pierre Leroy
- EA3452 CITHEFOR “Drug targets, formulation and preclinical assessment”, Faculté de Pharmacie, Université de Lorraine, Nancy, France
| | - Katy Maguin Gate
- EA3452 CITHEFOR “Drug targets, formulation and preclinical assessment”, Faculté de Pharmacie, Université de Lorraine, Nancy, France
| | - Ariane Boudier
- EA3452 CITHEFOR “Drug targets, formulation and preclinical assessment”, Faculté de Pharmacie, Université de Lorraine, Nancy, France
| | - Caroline Gaucher
- EA3452 CITHEFOR “Drug targets, formulation and preclinical assessment”, Faculté de Pharmacie, Université de Lorraine, Nancy, France
| | - Patrick Liminana
- EA3452 CITHEFOR “Drug targets, formulation and preclinical assessment”, Faculté de Pharmacie, Université de Lorraine, Nancy, France
| | - Isabelle Lartaud
- EA3452 CITHEFOR “Drug targets, formulation and preclinical assessment”, Faculté de Pharmacie, Université de Lorraine, Nancy, France
| | - Alfonso Pompella
- EA3452 CITHEFOR “Drug targets, formulation and preclinical assessment”, Faculté de Pharmacie, Université de Lorraine, Nancy, France
| | - Caroline Perrin-Sarrado
- EA3452 CITHEFOR “Drug targets, formulation and preclinical assessment”, Faculté de Pharmacie, Université de Lorraine, Nancy, France
- * E-mail:
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Vital SO, Gaucher C, Bardet C, Rowe P, George A, Linglart A, Chaussain C. Tooth dentin defects reflect genetic disorders affecting bone mineralization. Bone 2012; 50:989-97. [PMID: 22296718 PMCID: PMC3345892 DOI: 10.1016/j.bone.2012.01.010] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Revised: 01/06/2012] [Accepted: 01/14/2012] [Indexed: 01/27/2023]
Abstract
Several genetic disorders affecting bone mineralization may manifest during dentin mineralization. Dentin and bone are similar in several aspects, especially pertaining to the composition of the extracellular matrix (ECM) which is secreted by well-differentiated odontoblasts and osteoblasts, respectively. However, unlike bone, dentin is not remodelled and is not involved in the regulation of calcium and phosphate metabolism. In contrast to bone, teeth are accessible tissues with the shedding of deciduous teeth and the extractions of premolars and third molars for orthodontic treatment. The feasibility of obtaining dentin makes this a good model to study biomineralization in physiological and pathological conditions. In this review, we focus on two genetic diseases that disrupt both bone and dentin mineralization. Hypophosphatemic rickets is related to abnormal secretory proteins involved in the ECM organization of both bone and dentin, as well as in the calcium and phosphate metabolism. Osteogenesis imperfecta affects proteins involved in the local organization of the ECM. In addition, dentin examination permits evaluation of the effects of the systemic treatment prescribed to hypophosphatemic patients during growth. In conclusion, dentin constitutes a valuable tool for better understanding of the pathological processes affecting biomineralization.
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Affiliation(s)
- S. Opsahl Vital
- Dental School University Paris Descartes PRES Sorbonne Paris Cité, EA 2496, Montrouge, F-92120, France
- AP-HP, Odontology Department, Hôpitaux Universitaires Paris Nord Val de Seine (Bretonneau- Louis Mourier), F-75018, France
- Centre de référence des maladies rares du métabolisme du phosphore et du calcium, Kremlin Bicêtre, AP-HP, F-94275, France
| | - C. Gaucher
- Dental School University Paris Descartes PRES Sorbonne Paris Cité, EA 2496, Montrouge, F-92120, France
- AP-HP, Odontology Department, Hôpital Albert Chennevier, Créteil, F-94010, France
- Centre de référence des maladies rares du métabolisme du phosphore et du calcium, Kremlin Bicêtre, AP-HP, F-94275, France
| | - C. Bardet
- Dental School University Paris Descartes PRES Sorbonne Paris Cité, EA 2496, Montrouge, F-92120, France
| | - P.S. Rowe
- The Kidney Institute, University of Kansas Medical Center, Kansas City, KS, USA
| | - A. George
- Department of Oral Biology, University of Illinois in Chicago, Illinois 60612, USA
| | - A. Linglart
- Inserm, U986 Hôpital St Vincent de Paul AP-HP, Paris, F-75014, France
- Centre de référence des maladies rares du métabolisme du phosphore et du calcium, Kremlin Bicêtre, AP-HP, F-94275, France
| | - C. Chaussain
- Dental School University Paris Descartes PRES Sorbonne Paris Cité, EA 2496, Montrouge, F-92120, France
- AP-HP, Odontology Department, Hôpitaux Universitaires Paris Nord Val de Seine (Bretonneau- Louis Mourier), F-75018, France
- Centre de référence des maladies rares du métabolisme du phosphore et du calcium, Kremlin Bicêtre, AP-HP, F-94275, France
- Corresponding author at: Dental school University Paris Descartes PRES Sorbonne Paris Cité, EA 2496, Montrouge, France 2120. Fax: +33 158076724. (C. Chaussain)
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Berthelemy N, Kerdjoudj H, Gaucher C, Schaaf P, Stoltz JF, Lacolley P, Voegel JC, Menu P. Polyelectrolyte Films Boost Progenitor Cell Differentiation into Endothelium-like Monolayers. Adv Mater 2008; 20:2674-2678. [PMID: 25213888 DOI: 10.1002/adma.200702418] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2007] [Indexed: 06/03/2023]
Abstract
Rapid differentiation of endothelial progenitor cells (EPCs) into confluent mature endothelial cells is important in tissue engineering for the design of autologous, nonthrombotic, vascular grafts. A new method based on EPC culture on poly(sodium-4- styrene-sulfonate)/poly(allylamine hydrochloride), that is, polyelectrolyte-multilayer-coated substrates, reduces the time from two months to two weeks.
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Affiliation(s)
- Nicolas Berthelemy
- Group of Bioengineering (LEMTA-UMR CNRS 7563) UHP-Nancy 1, Faculté de Médecine 9, avenue de la forêt de Haye 54505 Vandoeuvre-lès-Nancy (France)
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Abstract
The most common and widely transplanted tissue worldwide is blood. But concerns about safety and adequacy of blood transfusion have fostered 20 years of research into blood substitutes such as oxygen carriers based on modified hemoglobin (Hb). Chemically modified or genetically engineered Hb developed as oxygen therapeutics are designed to restore blood volume and to correct oxygen deficit due to ischemia in a variety of clinical settings. Uncontrolled oxidative reactions mediated by large amounts of cell-free Hb and their reactions with various oxidant/antioxidant and cell signalling systems emerge as an important pathway of toxicity. Hemoglobin can react with oxygen and NO, leading to the production of reactive oxygen or nitrogen species. Inside the bloodstream, oxidized Hb and ROS/RNS are in direct contact with endothelial cells (EC). Thus, chain reactions may trigger molecular and cellular biology, causing oxidative stress-related pathologies. This editorial presents an overview of interactions between Hb (modified or not) and EC. We also propose a wide range of techniques and methods to assess oxidative stress and inflammation responses of EC after exposure to Hb. This editorial can serve as a guide to evaluate in vitro toxicity of new Hb molecules.
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Paternotte E, Gaucher C, Labrude P, Stoltz JF, Menu P. Review: behaviour of endothelial cells faced with hypoxia. Biomed Mater Eng 2008; 18:295-299. [PMID: 19065037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Hypoxia is a diminution of oxygen quantity delivered to tissue for cellular need to product energy. Hypoxia derives from two major conditions in health diseases: anemia and ischemia. Anemic hypoxia comes from damage to O(2) transport like red blood cells diminution or disease. Ischemic hypoxia is a diminution of blood flow following a diminution of blood volume after a hemorrhagic shock. After hypoxia, vessels dilate to increase blood flow allowing a better oxygenation of peripheral tissues. This vasodilation appears immediately after the beginning of hypoxia and can be maintained during several hours. Today, the molecular mechanisms of this vasodilation stay unclear. But it seems that potassic channels, ATP concentration and medium acidification in addition to vasodilator/vasoconstrictor balance play a great role to facilitate the oxygenation of the ischemic areas.As endothelial cells (EC) are lining the vasculature, they are always in contact with blood, which carries, amongst other compounds, oxygen. In this way, they are the first target for an oxygen partial pressure (PO(2)) diminution. EC, through different mechanosensors, can sense a variation in PO(2) and adapt their metabolism to maintain ATP production. Under hypoxia, EC switch into hypoxic metabolism, leading to the production of reactive oxygen species (ROS). Indeed, when PO(2) is low, the respiratory chain in the mitochondria runs slower. Furthermore, cytochrome C capacity to trap O(2) is reduced; this phenomenon alters the cellular redox potential and leads to the accumulation of electrons that induce the formation of ROS.This review presents an overview of the behaviour of endothelial cells face to hypoxia. We propose to focus on nitric oxide, hypoxia inducible factor (HIF), lactate and ROS productions. Then we present the different mode of culture of EC under hypoxia. Finally, we conclude on the difficulty to study hypoxia because of the various types of system developed to reproduce this phenomenon and the different signalling ways that can be activated.
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Affiliation(s)
- E Paternotte
- Ingénierie Cellulaire et Tissulaire, LEMTA-UMR 7563, IFR 111, Faculté de Médecine, Nancy-Université, Vandoeuvre-lès-Nancy, France.
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Affiliation(s)
- E. Paternotte
- Ingénierie Cellulaire et Tissulaire, LEMTA-UMR 7563, IFR 111, Faculté de Médecine, Nancy-Université, Vandoeuvre-lès-Nancy, France
| | - C. Gaucher
- Ingénierie Cellulaire et Tissulaire, LEMTA-UMR 7563, IFR 111, Faculté de Médecine, Nancy-Université, Vandoeuvre-lès-Nancy, France
| | - P. Labrude
- Physiologie, Faculté de Pharmacie, Nancy-Université, Nancy, France
| | - J.-F. Stoltz
- Ingénierie Cellulaire et Tissulaire, LEMTA-UMR 7563, IFR 111, Faculté de Médecine, Nancy-Université, Vandoeuvre-lès-Nancy, France
| | - P. Menu
- Ingénierie Cellulaire et Tissulaire, LEMTA-UMR 7563, IFR 111, Faculté de Médecine, Nancy-Université, Vandoeuvre-lès-Nancy, France
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Gaucher C, Devaux C, Boura C, Lacolley P, Stoltz JF, Menu P. In vitro impact of physiological shear stress on endothelial cells gene expression profile. Clin Hemorheol Microcirc 2007; 37:99-107. [PMID: 17641400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
In the vascular system, the shear applied to the vascular wall activates mechano-sensors located on endothelial cells (ECs) leading to a modification in the gene expression profile. We applied laminar shear stress at 1 Pa on ECs for 6 h and measured by quantitative real time PCR the expression modulation of genes implied in inflammation (ICAM-1 and E-selectin), oxidative stress sensing (HO-1) and vascular tone modulation (eNOS). We showed that all these genes are shear stress inducible. ICAM-1 is more up-regulated than E-selectin suggesting different levels of implication in inflammatory responses and different modes of induction (SSRE, cytokine). Laminar shear stress induces an oxidative stress translated into HO-1 up-regulation, and a possible vasodilatation through the induction of eNOS. Our laminar shear stress system opens a novel and interesting frame in the evaluation of the impact on ECs and blood cells of new pharmacological substances injected in the bloodstream.
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Affiliation(s)
- C Gaucher
- Groupe Mécanique et Ingénierie Cellulaire et Tissulaire, LEMTA-UMR 7563 IFR 111, Faculté de médecine, Vandoeuvre-lès-Nancy, France.
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50
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Gaucher C, Jaouen P, Legentilhomme P, Comiti J. Influence of Fluid Distribution on the Ultrafiltration Performance of a Ceramic Flat Sheet Membrane. SEP SCI TECHNOL 2003. [DOI: 10.1081/ss-120020128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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