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Grange C, Lux F, Brichart T, David L, Couturier A, Leaf DE, Allaouchiche B, Tillement O. Iron as an emerging therapeutic target in critically ill patients. Crit Care 2023; 27:475. [PMID: 38049866 PMCID: PMC10694984 DOI: 10.1186/s13054-023-04759-1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/24/2023] [Indexed: 12/06/2023] Open
Abstract
The multiple roles of iron in the body have been known for decades, particularly its involvement in iron overload diseases such as hemochromatosis. More recently, compelling evidence has emerged regarding the critical role of non-transferrin bound iron (NTBI), also known as catalytic iron, in the care of critically ill patients in intensive care units (ICUs). These trace amounts of iron constitute a small percentage of the serum iron, yet they are heavily implicated in the exacerbation of diseases, primarily by catalyzing the formation of reactive oxygen species, which promote oxidative stress. Additionally, catalytic iron activates macrophages and facilitates the growth of pathogens. This review aims to shed light on this underappreciated phenomenon and explore the various common sources of NTBI in ICU patients, which lead to transient iron dysregulation during acute phases of disease. Iron serves as the linchpin of a vicious cycle in many ICU pathologies that are often multifactorial. The clinical evidence showing its detrimental impact on patient outcomes will be outlined in the major ICU pathologies. Finally, different therapeutic strategies will be reviewed, including the targeting of proteins involved in iron metabolism, conventional chelation therapy, and the combination of renal replacement therapy with chelation therapy.
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Affiliation(s)
- Coralie Grange
- MexBrain, 13 Avenue Albert Einstein, Villeurbanne, France
- Institut Lumière-Matière, UMR 5306, Université Claude Bernard Lyon1-CNRS, Villeurbanne Cedex, France
| | - François Lux
- Institut Lumière-Matière, UMR 5306, Université Claude Bernard Lyon1-CNRS, Villeurbanne Cedex, France.
- Institut Universitaire de France (IUF), 75231, Paris, France.
| | | | - Laurent David
- Institut National des Sciences Appliquées, CNRS UMR 5223, Ingénierie des Matériaux Polymères, Univ Claude Bernard Lyon 1, Université Jean Monnet, 15 bd Latarjet, 69622, Villeurbanne, France
| | - Aymeric Couturier
- MexBrain, 13 Avenue Albert Einstein, Villeurbanne, France
- Nephrology, American Hospital of Paris, Paris, France
| | - David E Leaf
- Division of Renal Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Bernard Allaouchiche
- University of Lyon, University Lyon I Claude Bernard, APCSe VetAgro Sup UP, 2021. A10, Marcy L'Étoile, France
| | - Olivier Tillement
- Institut Lumière-Matière, UMR 5306, Université Claude Bernard Lyon1-CNRS, Villeurbanne Cedex, France
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Grange C, Aigle A, Ehrlich V, Salazar Ariza JF, Brichart T, Da Cruz-Boisson F, David L, Lux F, Tillement O. Design of a water-soluble chitosan-based polymer with antioxidant and chelating properties for labile iron extraction. Sci Rep 2023; 13:7920. [PMID: 37193699 DOI: 10.1038/s41598-023-34251-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 04/26/2023] [Indexed: 05/18/2023] Open
Abstract
Loosely bound iron, due to its contribution to oxidative stress and inflammation, has become an important therapeutic target for many diseases. A water-soluble chitosan-based polymer exhibiting both antioxidant and chelating properties due to the dual functionalization with DOTAGA and DFO has been developed to extract this iron therefore preventing its catalytic production of reactive oxygen species. This functionalized chitosan was shown to have stronger antioxidant properties compared to conventional chitosan, improved iron chelating properties compared to the clinical therapy, deferiprone, and provided promising results for its application and improved metal extraction within a conventional 4 h hemodialysis session with bovine plasma.
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Affiliation(s)
- Coralie Grange
- MexBrain, 13 avenue Albert Einstein, Villeurbanne, France
- Institut Lumière-Matière, UMR 5306, Université Lyon1-CNRS, Université de Lyon, Villeurbanne Cedex, France
| | - Axel Aigle
- MexBrain, 13 avenue Albert Einstein, Villeurbanne, France
| | - Victor Ehrlich
- Institut Lumière-Matière, UMR 5306, Université Lyon1-CNRS, Université de Lyon, Villeurbanne Cedex, France
| | - Juan Felipe Salazar Ariza
- Institut Lumière-Matière, UMR 5306, Université Lyon1-CNRS, Université de Lyon, Villeurbanne Cedex, France
- Ingénierie des Matériaux Polymères, CNRS UMR 5223, Univ Claude Bernard Lyon 1, Institut national des Sciences Appliquées, Université Jean Monnet, Univ Lyon, 15 bd Latarjet, 69622, Villeurbanne, France
- Institut Universitaire de France (IUF), 75231, Paris, France
| | | | - Fernande Da Cruz-Boisson
- Ingénierie des Matériaux Polymères, CNRS UMR 5223, Univ Claude Bernard Lyon 1, Institut national des Sciences Appliquées, Université Jean Monnet, Univ Lyon, 15 bd Latarjet, 69622, Villeurbanne, France
| | - Laurent David
- Ingénierie des Matériaux Polymères, CNRS UMR 5223, Univ Claude Bernard Lyon 1, Institut national des Sciences Appliquées, Université Jean Monnet, Univ Lyon, 15 bd Latarjet, 69622, Villeurbanne, France
| | - François Lux
- Institut Lumière-Matière, UMR 5306, Université Lyon1-CNRS, Université de Lyon, Villeurbanne Cedex, France.
- Institut Universitaire de France (IUF), 75231, Paris, France.
| | - Olivier Tillement
- Institut Lumière-Matière, UMR 5306, Université Lyon1-CNRS, Université de Lyon, Villeurbanne Cedex, France
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Truillet C, Bouziotis P, Tsoukalas C, Brugière J, Martini M, Sancey L, Brichart T, Denat F, Boschetti F, Darbost U, Bonnamour I, Stellas D, Anagnostopoulos CD, Koutoulidis V, Moulopoulos LA, Perriat P, Lux F, Tillement O. Ultrasmall particles for Gd-MRI and (68) Ga-PET dual imaging. Contrast Media Mol Imaging 2014; 10:309-19. [PMID: 25483609 DOI: 10.1002/cmmi.1633] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 10/09/2014] [Accepted: 10/10/2014] [Indexed: 12/16/2022]
Abstract
Nanoparticles made of a polysiloxane matrix and surrounded by 1,4,7,10-tetraazacyclododecane-1-glutaric anhydride-4,7,10-triacetic acid (DOTAGA)[Gd(3+) ] and 2,2'-(7-(1-carboxy-4-((2,5-dioxopyrrolidin-1-yl)oxy)-4-oxobutyl)-1,4,7-triazonane-1,4-diyl)diacetic acid) NODAGA[(68) Ga(3+) ] have been synthesized for positron emission tomography/magnetic resonance (PET/MRI) dual imaging. Characterizations were carried out in order to determine the nature of the ligands available for radiolabelling and to quantify them. High radiolabelling purity (>95%) after (68) Ga labelling was obtained. The MR and PET images demonstrate the possibility of using the nanoparticles for a combined PET/MR imaging scanner. The images show fast renal elimination of the nanoparticles after intravenous injection.
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Affiliation(s)
- Charles Truillet
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Penelope Bouziotis
- Radiochemistry Studies Laboratory, Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, National Center for Scientific Research 'Demokritos', Athens, Greece
| | - Charalambos Tsoukalas
- Radiochemistry Studies Laboratory, Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, National Center for Scientific Research 'Demokritos', Athens, Greece
| | - Jérémy Brugière
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Matteo Martini
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Lucie Sancey
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Thomas Brichart
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Franck Denat
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302, Université de Bourgogne, 21078, Dijon Cedex, France
| | | | - Ulrich Darbost
- ICBMS, UMR 5246 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Isabelle Bonnamour
- ICBMS, UMR 5246 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Dimitris Stellas
- Department of Cancer Biology, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Constantinos D Anagnostopoulos
- Center for Experimental surgery, Clinical and Translational Research, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Vassilis Koutoulidis
- Department of Radiology, University of Athens Medical School, Areteion Hospital, Athens, Greece
| | - Lia A Moulopoulos
- Department of Radiology, University of Athens Medical School, Areteion Hospital, Athens, Greece
| | - Pascal Perriat
- Matériaux Ingénierie et Science, INSA Lyon, UMR 5510, 69621, Villeurbanne Cedex, France
| | - François Lux
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
| | - Olivier Tillement
- ILM, UMR 5306 - Université Claude Bernard Lyon 1, Université de Lyon, 69622, Villeurbanne Cedex, France
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Mayer F, Zhang W, Brichart T, Tillement O, Bonnet CS, Tóth É, Peters JA, Djanashvili K. Nanozeolite-LTL with Gd(III) deposited in the large and Eu(III) in the small cavities as a magnetic resonance optical imaging probe. Chemistry 2014; 20:3358-64. [PMID: 24523192 DOI: 10.1002/chem.201304457] [Citation(s) in RCA: 12] [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: 11/14/2013] [Indexed: 11/09/2022]
Abstract
The immense structural diversity of more than 200 known zeolites is the basis for the wide variety of applications of these fascinating materials ranging from catalysis and molecular filtration to agricultural uses. Despite this versatility, the potential of zeolites in medical imaging has not yet been much exploited. In this work a novel strategy is presented to selectively deposit different ions into distinct framework locations of zeolite-LTL (Linde type L) and it is demonstrated that the carefully ion-exchanged Gd/Eu-containing nanocrystals acquire exceptional magnetic properties in combination with enhanced luminescence. This smart exploitation of the framework structure yields the highest relaxivity density (13.7 s(-1) L g(-1) at 60 MHz and 25 °C) reported so far for alumosilicates, rendering these materials promising candidates for the design of dual magnetic resonance/optical imaging probes, as demonstrated in preliminary phantom studies.
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Affiliation(s)
- Florian Mayer
- Department of Biotechnology, Delft University of Technology, Julianalaan 136, 2628 BL Delft (The Netherlands), Fax: (+31) 152781415
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Prédélus D, Lassabatere L, Coutinho AP, Louis C, Brichart T, Slimène EB, Winiarski T, Angulo-Jaramillo R. Tracing Water Flow and Colloidal Particles Transfer in an Unsaturated Soil. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/jwarp.2014.67067] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ayela F, Medrano-Muñoz M, Amans D, Dujardin C, Brichart T, Martini M, Tillement O, Ledoux G. Experimental evidence of temperature gradients in cavitating microflows seeded with thermosensitive nanoprobes. Phys Rev E Stat Nonlin Soft Matter Phys 2013; 88:043016. [PMID: 24229285 DOI: 10.1103/physreve.88.043016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 07/08/2013] [Indexed: 06/02/2023]
Abstract
Thermosensitive fluorescent nanoparticles seeded in deionized water combined with confocal microscopy enables thermal mapping over three dimensions of the liquid phase flowing through a microchannel interrupted by a microdiaphragm. This experiment reveals the presence of a strong thermal gradient up to ~10(5) K/m only when hydrodynamic cavitation is present. Here hydrodynamic cavitation is the consequence of high shear rates downstream in the diaphragm. This temperature gradient is located in vortical structures associated with eddies in the shear layers. We attribute such overheating to the dissipation involved by the cavitating flow regime. Accordingly, we demonstrate that the microsizes of the device enhance the intensity of the thermal gap.
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Affiliation(s)
- Frédéric Ayela
- Laboratoire des Ecoulements Géophysiques et Industriels (LEGI), UMR5519 UJF Grenoble 1-CNRS, BP 53, 38041 Grenoble Cedex 9, France
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