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Chourrout M, Sandt C, Weitkamp T, Dučić T, Meyronet D, Baron T, Klohs J, Rama N, Boutin H, Singh S, Olivier C, Wiart M, Brun E, Bohic S, Chauveau F. Virtual histology of Alzheimer's disease: Biometal entrapment within amyloid-β plaques allows for detection via X-ray phase-contrast imaging. Acta Biomater 2023; 170:260-272. [PMID: 37574159 DOI: 10.1016/j.actbio.2023.07.046] [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: 03/30/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/15/2023]
Abstract
Amyloid-β (Aβ) plaques from Alzheimer's Disease (AD) can be visualized ex vivo in label-free brain samples using synchrotron X-ray phase-contrast tomography (XPCT). However, for XPCT to be useful as a screening method for amyloid pathology, it is essential to understand which factors drive the detection of Aβ plaques. The current study was designed to test the hypothesis that Aβ-related contrast in XPCT could be caused by Aβ fibrils and/or by metals trapped in the plaques. Fibrillar and elemental compositions of Aβ plaques were probed in brain samples from different types of AD patients and AD models to establish a relationship between XPCT contrast and Aβ plaque characteristics. XPCT, micro-Fourier-Transform Infrared spectroscopy and micro-X-Ray Fluorescence spectroscopy were conducted on human samples (one genetic and one sporadic case) and on four transgenic rodent strains (mouse: APPPS1, ArcAβ, J20; rat: TgF344). Aβ plaques from the genetic AD patient were visible using XPCT, and had higher β-sheet content and higher metal levels than those from the sporadic AD patient, which remained undetected by XPCT. Aβ plaques in J20 mice and TgF344 rats appeared hyperdense on XPCT images, while they were hypodense with a hyperdense core in the case of APPPS1 and ArcAβ mice. In all four transgenic strains, β-sheet content was similar, while metal levels were highly variable: J20 (zinc and iron) and TgF344 (copper) strains showed greater metal accumulation than APPPS1 and ArcAβ mice. Hence, a hyperdense contrast formation of Aβ plaques in XPCT images was associated with biometal entrapment within plaques. STATEMENT OF SIGNIFICANCE: The role of metals in Alzheimer's disease (AD) has been a subject of continuous interest. It was already known that amyloid-β plaques (Aβ), the earliest hallmark of AD, tend to trap endogenous biometals like zinc, iron and copper. Here we show that this metal accumulation is the main reason why Aβ plaques are detected with a new technique called X-ray phase contrast tomography (XPCT). XPCT enables to map the distribution of Aβ plaques in the whole excised brain without labeling. In this work we describe a unique collection of four transgenic models of AD, together with a human sporadic and a rare genetic case of AD, thus exploring the full spectrum of amyloid contrast in XPCT.
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Affiliation(s)
- Matthieu Chourrout
- Univ. Lyon, Lyon Neuroscience Research Center (CRNL); CNRS UMR5292; INSERM U1028, Univ. Lyon 1, Lyon, France
| | | | | | - Tanja Dučić
- ALBA-CELLS Synchrotron, MIRAS Beamline, Cerdanyola del Vallès, Spain
| | - David Meyronet
- Hospices Civils de Lyon, Neuropathology Department, Lyon, France; Univ. Lyon, Cancer Research Center of Lyon (CRCL); INSERM U1052; CNRS UMR5286, Univ. Lyon 1; Centre Léon Bérard, Lyon, France
| | | | - Jan Klohs
- ETH Zurich, Institute for Biomedical Engineering, Zurich, Switzerland
| | - Nicolas Rama
- Univ. Lyon, Cancer Research Center of Lyon (CRCL); INSERM U1052; CNRS UMR5286, Univ. Lyon 1; Centre Léon Bérard, Lyon, France
| | - Hervé Boutin
- Univ. Manchester, Faculty of Biology Medicine and Health, Wolfson Molecular Imaging Centre, Manchester, United Kingdom
| | - Shifali Singh
- Univ. Grenoble Alpes, Synchrotron Radiation for Biomedicine (STROBE); Inserm UA7, Grenoble, France
| | - Cécile Olivier
- Univ. Grenoble Alpes, Synchrotron Radiation for Biomedicine (STROBE); Inserm UA7, Grenoble, France
| | - Marlène Wiart
- Univ. Lyon, CarMeN Laboratory; INSERM U1060, INRA U1397, INSA Lyon, Univ. Lyon 1, Lyon, France; CNRS, France
| | - Emmanuel Brun
- Univ. Grenoble Alpes, Synchrotron Radiation for Biomedicine (STROBE); Inserm UA7, Grenoble, France
| | - Sylvain Bohic
- Univ. Grenoble Alpes, Synchrotron Radiation for Biomedicine (STROBE); Inserm UA7, Grenoble, France
| | - Fabien Chauveau
- Univ. Lyon, Lyon Neuroscience Research Center (CRNL); CNRS UMR5292; INSERM U1028, Univ. Lyon 1, Lyon, France; CNRS, France.
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2
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Meyvisch P, Mertens KN, Gurdebeke PR, Sandt C, Pospelova V, Vrielinck H, Borondics F, Louwye S. Does dinocyst wall composition really reflect trophic affinity? New evidence from ATR micro-FTIR spectroscopy measurements. J Phycol 2023; 59:1064-1084. [PMID: 37623312 DOI: 10.1111/jpy.13382] [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] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 05/02/2023] [Accepted: 07/21/2023] [Indexed: 08/26/2023]
Abstract
Attenuated total reflection (ATR) microscope Fourier transform infrared (micro-FTIR) spectroscopy was used to investigate the dinosporin composition in the walls of modern, organic-walled dinoflagellate resting cysts (dinocysts). Variable cyst wall compositions were observed, which led to the erection of four spectrochemical groups, some with striking similarities to other resistant biomacromolecules such as sporopollenin and algaenan. Furthermore, possible proxies derivable from the spectrochemical composition of modern and fossil dinocysts were discussed. The color of the dinocyst walls was reflected in the spectral data. When comparing that color with a standard and the results of a series of bleaching experiments with oxidative agents, eumelanin was assigned as a likely pigment contributing to the observed color. Following this assignment, the role of eumelanin as an ultraviolet sunscreen in colored dinocysts was hypothesized, and its implications on the autofluorescence and morphological preservation of dinocysts were further discussed. Unlike what had previously been assumed, it was shown that micro-FTIR data from dinocysts cannot be used to unambiguously infer trophic affinities of their associated cells. Finally, using methods with high spatial resolutions (synchrotron transmission micro-FTIR and optical photothermal infrared spectroscopy), it was shown that dinocyst wall layers are chemically homogenous at the probed scales. This study fills a large knowledge gap in our understanding of the chemical nature of dinocyst walls and has nuanced certain assumptions and interpretations made in the past.
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Affiliation(s)
| | | | | | | | - Vera Pospelova
- Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, Minnesota, USA
| | - Henk Vrielinck
- Department of Solid-State Sciences, Ghent University, Ghent, Belgium
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3
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Mozhdehei A, Slodczyk A, Almklov Magnussen E, Kohler A, Sandt C, Borondics F, Mercury L. Diffraction-limited mid-infrared microspectroscopy to reveal a micron-thick interfacial water layer signature. Analyst 2023. [PMID: 37219066 DOI: 10.1039/d3an00138e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Mid-infrared microspectroscopy is a non-invasive tool for identifying the molecular structure and chemical composition at the scale of the probe, i.e. at the scale of the beam. Consequently, investigating small objects or domains (commensurable to the wavelength) requires high-resolution measurements, even down to the diffraction limit. Herein, different protocols and machines allowing high-resolution measurements in transmission mode (aperture size (i.e., beam size) from 15 × 15 μm to 3 × 3 μm) are tested using the same sample. The model sample is a closed cavity containing a water-air assemblage buried in a quartz fragment (fluid inclusion). The spectral range covers the water stretching band (3000-3800 cm-1), whose variations are followed as a function of the distance to the cavity wall. The experiments compare the performance of one focal plane array (FPA) detector associated with a Globar source with respect to a single-element mercury cadmium telluride (MCT) detector associated with a supercontinuum laser (SCL) or a synchrotron radiation source (SRS). This work also outlines the importance of post-experimental data processing, including interference fringe removal and Mie scattering correction, to ensure that the observed spectral signatures are not related to optical aberrations. We show that the SCL and the SRS-based setups detect specific spectral features along the quartz boundary (solid surface), invisible to the FPA imaging microscope. Additionally, the broadband SCL thus has the potential to substitute at the laboratory scale the SRS for conducting diffraction-limited high-resolution measurements.
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Affiliation(s)
- Armin Mozhdehei
- Institut des Sciences de la Terre d'Orléans - UMR 7327 Université d'Orléans, CNRS, BRGM, 45071 Orléans Cedex, France.
| | - Aneta Slodczyk
- Institut des Sciences de la Terre d'Orléans - UMR 7327 Université d'Orléans, CNRS, BRGM, 45071 Orléans Cedex, France.
- CEMHTI, UPR 3079 CNRS - Université d'Orléans, F-45071, Orléans, France
| | | | - Achim Kohler
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - Christophe Sandt
- Synchrotron Soleil, L'Orme des Merisiers Route départementale 128, 91190 Saint Aubin, France
| | - Ferenc Borondics
- Synchrotron Soleil, L'Orme des Merisiers Route départementale 128, 91190 Saint Aubin, France
| | - Lionel Mercury
- Institut des Sciences de la Terre d'Orléans - UMR 7327 Université d'Orléans, CNRS, BRGM, 45071 Orléans Cedex, France.
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4
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Leroy A, Devaux MF, Fanuel M, Chauvet H, Durand S, Alvarado C, Habrant A, Sandt C, Rogniaux H, Paës G, Guillon F. Real-time imaging of enzymatic degradation of pretreated maize internodes reveals different cell types have different profiles. Bioresour Technol 2022; 353:127140. [PMID: 35405211 DOI: 10.1016/j.biortech.2022.127140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 06/14/2023]
Abstract
This work presents a dynamic view of the enzymatic degradation of maize cell walls, and sheds new light on the recalcitrance of hot water pretreated maize stem internodes. Infra-red microspectrometry, mass spectrometry, fluorescence recovery after photobleaching and fluorescence imaging were combined to investigate enzymatic hydrolysis at the cell scale. Depending on their polymer composition and organisation, cell types exhibits different extent and rate of enzymatic degradation. Enzymes act sequentially from the cell walls rich in accessible cellulose to the most recalcitrant cells. This phenomenon can be linked to the heterogeneous distribution of enzymes in the liquid medium and the adsorption/desorption mechanisms that differ with the type of cell.
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Affiliation(s)
- Amandine Leroy
- INRAE, UR 1268 BIA, 44316 Nantes, France; Université de Reims Champagne Ardenne, INRAE, FARE, UMR A614, 51100 Reims, France
| | | | - Mathieu Fanuel
- INRAE, UR 1268 BIA, 44316 Nantes, France; INRAE, BIBS Facility, 44316 Nantes, France
| | - Hugo Chauvet
- DISCO Beamline, SOLEIL Synchrotron, BP48, l'Orme des Merisiers, 91192 Gif-sur-Yvette CEDEX, France
| | | | | | - Anouck Habrant
- Université de Reims Champagne Ardenne, INRAE, FARE, UMR A614, 51100 Reims, France
| | - Christophe Sandt
- SMIS Beamline, SOLEIL Synchrotron, BP48, l'Orme des Merisiers, 91192 Gif-sur-Yvette CEDEX, France
| | - Hélène Rogniaux
- INRAE, UR 1268 BIA, 44316 Nantes, France; INRAE, BIBS Facility, 44316 Nantes, France
| | - Gabriel Paës
- Université de Reims Champagne Ardenne, INRAE, FARE, UMR A614, 51100 Reims, France
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Ma X, Pavlidis G, Dillon E, Beltran V, Schwartz JJ, Thoury M, Borondics F, Sandt C, Kjoller K, Berrie BH, Centrone A. Micro to Nano: Multiscale IR Analyses Reveal Zinc Soap Heterogeneity in a 19th-Century Painting by Corot. Anal Chem 2022; 94:3103-3110. [PMID: 35138807 DOI: 10.1021/acs.analchem.1c04182] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Formation and aggregation of metal carboxylates (metal soaps) can degrade the appearance and integrity of oil paints, challenging efforts to conserve painted works of art. Endeavors to understand the root cause of metal soap formation have been hampered by the limited spatial resolution of Fourier transform infrared microscopy (μ-FTIR). We overcome this limitation using optical photothermal infrared spectroscopy (O-PTIR) and photothermal-induced resonance (PTIR), two novel methods that provide IR spectra with ≈500 and ≈10 nm spatial resolutions, respectively. The distribution of chemical phases in thin sections from the top layer of a 19th-century painting is investigated at multiple scales (μ-FTIR ≈ 102 μm3, O-PTIR ≈ 10-1 μm3, PTIR ≈ 10-5 μm3). The paint samples analyzed here are found to be mixtures of pigments (cobalt green, lead white), cured oil, and a rich array of intermixed, small (often ≪ 0.1 μm3) zinc soap domains. We identify Zn stearate and Zn oleate crystalline soaps with characteristic narrow IR peaks (≈1530-1558 cm-1) and a heterogeneous, disordered, water-permeable, tetrahedral zinc soap phase, with a characteristic broad peak centered at ≈1596 cm-1. We show that the high signal-to-noise ratio and spatial resolution afforded by O-PTIR are ideal for identifying phase-separated (or locally concentrated) species with low average concentration, while PTIR provides an unprecedented nanoscale view of distributions and associations of species in paint. This newly accessible nanocompositional information will advance our knowledge of chemical processes in oil paint and will stimulate new art conservation practices.
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Affiliation(s)
- Xiao Ma
- Institute for the Conservation of Cultural Heritage, Shanghai University, No. 333 Nanchen Road, Shanghai 200444, China
| | - Georges Pavlidis
- Nanoscale Device Characterization Division, Physical Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Eoghan Dillon
- Photothermal Spectroscopy Corporation, 325 Chapala Street, Santa Barbara, California 93101, United States
| | - Victoria Beltran
- IPANEMA, CNRS, Ministère de la Culture et de la Communication Université de Versailles Saint-Quentin-en-Yvelines, USR 3461, Université Paris-Saclay, 91128 Gif-sur-Yvette, France
| | - Jeffrey J Schwartz
- Nanoscale Device Characterization Division, Physical Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States.,Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, United States
| | - Mathieu Thoury
- IPANEMA, CNRS, Ministère de la Culture et de la Communication Université de Versailles Saint-Quentin-en-Yvelines, USR 3461, Université Paris-Saclay, 91128 Gif-sur-Yvette, France
| | - Ferenc Borondics
- Synchrotron SOLEIL, L'Orme des Merisiers Saint-Aubin BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - Christophe Sandt
- Synchrotron SOLEIL, L'Orme des Merisiers Saint-Aubin BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - Kevin Kjoller
- Photothermal Spectroscopy Corporation, 325 Chapala Street, Santa Barbara, California 93101, United States
| | - Barbara H Berrie
- Scientific Research Department, National Gallery of Art, 2000B South Club Drive, Landover, Maryland 20785, United States
| | - Andrea Centrone
- Nanoscale Device Characterization Division, Physical Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
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Réjasse A, Waeytens J, Deniset-Besseau A, Crapart N, Nielsen-Leroux C, Sandt C. Plastic biodegradation: Do Galleria mellonella Larvae Bioassimilate Polyethylene? A Spectral Histology Approach Using Isotopic Labeling and Infrared Microspectroscopy. Environ Sci Technol 2022; 56:525-534. [PMID: 34932348 DOI: 10.1021/acs.est.1c03417] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 06/14/2023]
Abstract
Environmental pollution by the nearly nonbiodegradable polyethylene (PE) plastics is of major concern; thus, organisms capable of biodegrading PE are required. The larvae of the Greater Wax Moth, Galleria mellonella (Gm), were identified as a potential candidate to digest PE. In this study, we tested whether PE was metabolized by Gm larvae and could be found in their tissues. We examined the implication of the larval gut microbiota by using conventional and axenic reared insects. First, our study showed that neither beeswax nor LDPE alone favor the growth of young larvae. We then used Fourier transform infrared microspectroscopy (μFTIR) to detect deuterium in larvae fed with isotopically labeled food. Deuterated molecules were found in tissues of larvae fed with deuterium labeled oil for 24 and 72 h, proving that μFTIR can detect metabolization of 1 to 2 mg of deuterated food. Then, Gm larvae were fed with deuterated PE (821 kDa). No bioassimilation was detected in the tissues of larvae that had ingested 1 to 5 mg of deuterated PE in 72 h or in 19 days, but micrometer sized PE particles were found in the larval digestive tract cavities. We evidenced weak biodegradation of 641 kDa PE films in contact for 24 h with the dissected gut of conventional larvae and in the PED4 particles from excreted larval frass. Our study confirms that Gm larvae can biodegrade HDPE but cannot necessarily metabolize it.
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Affiliation(s)
- Agnès Réjasse
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, 78350 Jouy-en-Josas, France
| | - Jehan Waeytens
- Structure et Fonction des Membranes Biologiques, Université libre de Bruxelles, B-1050 Bruxelles, Belgique
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, 91405 Orsay, France
| | - Ariane Deniset-Besseau
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, 91405 Orsay, France
| | - Nicolas Crapart
- UMR 1313 GABI, Abridge, INRAE, Université Paris-Saclay, 78350 Jouy en Josas, France
- Exilone, 78990 Elancourt, France
| | | | - Christophe Sandt
- SMIS beamline, Synchrotron Soleil, L'Orme des Merisiers, BP 48 Saint Aubin, 91192 Cedex Gif-sur-Yvette, France
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7
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Sandt C, Partouche D, Arluison V. Direct, Rapid, and Simple Evaluation of the Expression and Conformation of Beta-Amyloid in Bacterial Cells by FTIR Spectroscopy. Methods Mol Biol 2022; 2538:235-260. [PMID: 35951304 DOI: 10.1007/978-1-0716-2529-3_16] [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] [Indexed: 06/15/2023]
Abstract
The expression and conformation of bacterial proteins and peptides can be monitored in situ by Fourier transform infrared spectroscopy (FTIR), provided that the concentration of the protein of interest is sufficient. Here, we describe a simple protocol to analyze the conformation adopted by a specific amyloid protein in Escherichia coli cells, the pleiotropic regulator Hfq.E. coli cells expressing Hfq under an inducible promoter are analyzed. The change in protein conformation is analyzed by comparing the different populations versus controls (i.e., Δhfq cells, totally devoid of the Hfq protein) by difference spectroscopy, second derivation, curve-fitting, and principal component analysis. All the analyses were performed in the free, open-source software Quasar. We describe the detailed protocol for analyzing the data in Quasar. We show that the specific absorption of the β-amyloid conformation can be easily detected in the WT-Hfq, with bands at 1624 cm-1 and 1693 cm-1 indicating the presence of both parallel and antiparallel β-sheets. Furthermore, we show that FTIR spectroscopy is sensitive enough to probe the conformation of an amyloid protein backbone in vivo and to analyze its conformation in situ, directly in bacterial cells, without the need for protein purification.
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Affiliation(s)
- Christophe Sandt
- SMIS beamline, Synchrotron SOLEIL, L'Orme des Merisiers Saint Aubin, Gif-sur-Yvette, France.
| | - David Partouche
- SMIS beamline, Synchrotron SOLEIL, L'Orme des Merisiers Saint Aubin, Gif-sur-Yvette, France
- Laboratoire Léon Brillouin LLB, CEA, CNRS UMR 12, Université Paris Saclay, CEA Saclay, Gif-sur-Yvette, France
| | - Véronique Arluison
- Laboratoire Léon Brillouin LLB, CEA, CNRS UMR 12, Université Paris Saclay, CEA Saclay, Gif-sur-Yvette, France
- Université de Paris Cité, Paris, France
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8
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Fabbiani M, Romi S, Alabarse F, Celeste A, Capitani F, Borondics F, Sandt C, Contreras S, Konczewicz L, Rouquette J, Santoro M, Haines J. High-pressure, high-temperature synthesis of nanostructured polydiphenylbutadiyne confined in the 1-dimensional pores of single crystal AlPO 4-54. CrystEngComm 2022. [DOI: 10.1039/d2ce00938b] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diphenylbutadiyne was inserted and polymerized in porous AlPO4-54 single crystals under high temperature, high pressure conditions to form a confined, nanostructured π-conjugated polymer.
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Affiliation(s)
- Marco Fabbiani
- ICGM, CNRS, Université de Montpellier, 34293 Montpellier, France
| | - Sebastiano Romi
- European Laboratory for Non Linear Spectroscopy, LENS, 50019 Sesto Fiorentino, Italy
| | | | - Anna Celeste
- Synchrotron SOLEIL, Saint Aubin – BP48, Gif sur Yvette, 91192, France
| | | | - Ferenc Borondics
- Synchrotron SOLEIL, Saint Aubin – BP48, Gif sur Yvette, 91192, France
| | - Christophe Sandt
- Synchrotron SOLEIL, Saint Aubin – BP48, Gif sur Yvette, 91192, France
| | - Sylvie Contreras
- Laboratoire Charles Coulomb, CNRS, Université de Montpellier, 34095 Montpellier, France
| | - Leszek Konczewicz
- Laboratoire Charles Coulomb, CNRS, Université de Montpellier, 34095 Montpellier, France
- Institute of High Pressure Physics, Warsaw, Poland
| | - Jérôme Rouquette
- ICGM, CNRS, Université de Montpellier, 34293 Montpellier, France
| | - Mario Santoro
- European Laboratory for Non Linear Spectroscopy, LENS, 50019 Sesto Fiorentino, Italy
- Istituto Nazionale di Ottica, INO-CNR, 50019 Sesto Fiorentino, Italy
| | - Julien Haines
- ICGM, CNRS, Université de Montpellier, 34293 Montpellier, France
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Solheim JH, Borondics F, Zimmermann B, Sandt C, Muthreich F, Kohler A. An automated approach for fringe frequency estimation and removal in infrared spectroscopy and hyperspectral imaging of biological samples. J Biophotonics 2021; 14:e202100148. [PMID: 34468082 DOI: 10.1002/jbio.202100148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 08/23/2021] [Accepted: 08/28/2021] [Indexed: 06/13/2023]
Abstract
In infrared spectroscopy of thin film samples, interference introduces distortions in spectra, commonly referred to as fringes. Fringes may alter absorbance peak ratios, which hampers the spectral analysis. We have previously introduced extended multiplicative signal correction (EMSC) for fringes correction. In the current article, we provide a robust open-source algorithm for fringe correction in infrared spectroscopy and propose several improvements to the Fringe EMSC model. The suggested algorithm achieves a more precise fringe frequency estimation by mean centering of the measured spectrum and applying a window function prior to the Fourier transform. It selects two frequencies from a user defined number of maxima in the Fourier domain. The improved Fringe EMSC algorithm is validated on two experimental datasets, one of them being a hyperspectral image. Techniques for separating sample spectra from background spectra in hyperspectral images, and techniques to identify spectra affected by fringes are also provided.
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Affiliation(s)
- Johanne Heitmann Solheim
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin-BP48, Gif-sur-Yvette CEDEX, France
| | - Ferenc Borondics
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin-BP48, Gif-sur-Yvette CEDEX, France
| | - Boris Zimmermann
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - Christophe Sandt
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin-BP48, Gif-sur-Yvette CEDEX, France
| | - Florian Muthreich
- Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - Achim Kohler
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
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10
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Beltran V, Marchetti A, Nuyts G, Leeuwestein M, Sandt C, Borondics F, De Wael K. Innentitelbild: Nanoscale Analysis of Historical Paintings by Means of O‐PTIR Spectroscopy: The Identification of the Organic Particles in
L′Arlésienne (Portrait of Madame Ginoux)
by Van Gogh (Angew. Chem. 42/2021). Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Victoria Beltran
- AXES research group University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
- NanoLab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Andrea Marchetti
- AXES research group University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
- NanoLab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Gert Nuyts
- AXES research group University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
- NanoLab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | | | | | | | - Karolien De Wael
- AXES research group University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
- NanoLab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
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11
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Beltran V, Marchetti A, Nuyts G, Leeuwestein M, Sandt C, Borondics F, De Wael K. Inside Cover: Nanoscale Analysis of Historical Paintings by Means of O‐PTIR Spectroscopy: The Identification of the Organic Particles in
L′Arlésienne (Portrait of Madame Ginoux)
by Van Gogh (Angew. Chem. Int. Ed. 42/2021). Angew Chem Int Ed Engl 2021. [DOI: 10.1002/anie.202109234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Victoria Beltran
- AXES research group University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
- NanoLab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Andrea Marchetti
- AXES research group University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
- NanoLab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Gert Nuyts
- AXES research group University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
- NanoLab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | | | | | | | - Karolien De Wael
- AXES research group University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
- NanoLab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
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12
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Beltran V, Marchetti A, Nuyts G, Leeuwestein M, Sandt C, Borondics F, De Wael K. Nanoscale Analysis of Historical Paintings by Means of O-PTIR Spectroscopy: The Identification of the Organic Particles in L'Arlésienne (Portrait of Madame Ginoux) by Van Gogh. Angew Chem Int Ed Engl 2021; 60:22753-22760. [PMID: 34165241 DOI: 10.1002/anie.202106058] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Indexed: 11/06/2022]
Abstract
Optical-photothermal infrared (O-PTIR) spectroscopy is a recently developed technique that provides spectra comparable to traditional transmission FTIR spectroscopy with nanometric spatial resolution. Hence, O-PTIR is a promising candidate for the analysis of historical paintings, as well as other cultural heritage objects, but its potential has not yet been evaluated. This work presents the first application of O-PTIR to the analysis of cultural heritage, and in particular to an extremely small fragment from Van Gogh's painting L'Arlésienne (portrait of Madame Ginoux). The striking results obtained, including the detection of geranium lake pigments as well as the complete analysis of the stratigraphy, failed with other state-of-the-art techniques, highlight the potential of this method. The integration of O-PTIR to the study of cultural heritage opens to the possibility of decreasing the amount of sample extracted, therefore contributing to the preservation of the integrity of artworks while providing a complete characterization of the materials.
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Affiliation(s)
- Victoria Beltran
- AXES research group, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium.,NanoLab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Andrea Marchetti
- AXES research group, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium.,NanoLab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Gert Nuyts
- AXES research group, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium.,NanoLab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | | | | | | | - Karolien De Wael
- AXES research group, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium.,NanoLab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
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13
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Beltran V, Marchetti A, Nuyts G, Leeuwestein M, Sandt C, Borondics F, De Wael K. Nanoscale Analysis of Historical Paintings by Means of O‐PTIR Spectroscopy: The Identification of the Organic Particles in
L′Arlésienne (Portrait of Madame Ginoux)
by Van Gogh. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Victoria Beltran
- AXES research group University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
- NanoLab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Andrea Marchetti
- AXES research group University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
- NanoLab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Gert Nuyts
- AXES research group University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
- NanoLab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | | | | | | | - Karolien De Wael
- AXES research group University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
- NanoLab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
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14
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Freitas RO, Cernescu A, Engdahl A, Paulus A, Levandoski JE, Martinsson I, Hebisch E, Sandt C, Gouras GK, Prinz CN, Deierborg T, Borondics F, Klementieva O. Nano-Infrared Imaging of Primary Neurons. Cells 2021; 10:cells10102559. [PMID: 34685539 PMCID: PMC8534030 DOI: 10.3390/cells10102559] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 09/10/2021] [Accepted: 09/22/2021] [Indexed: 12/25/2022] Open
Abstract
Alzheimer’s disease (AD) accounts for about 70% of neurodegenerative diseases and is a cause of cognitive decline and death for one-third of seniors. AD is currently underdiagnosed, and it cannot be effectively prevented. Aggregation of amyloid-β (Aβ) proteins has been linked to the development of AD, and it has been established that, under pathological conditions, Aβ proteins undergo structural changes to form β-sheet structures that are considered neurotoxic. Numerous intensive in vitro studies have provided detailed information about amyloid polymorphs; however, little is known on how amyloid β-sheet-enriched aggregates can cause neurotoxicity in relevant settings. We used scattering-type scanning near-field optical microscopy (s-SNOM) to study amyloid structures at the nanoscale, in individual neurons. Specifically, we show that in well-validated systems, s-SNOM can detect amyloid β-sheet structures with nanometer spatial resolution in individual neurons. This is a proof-of-concept study to demonstrate that s-SNOM can be used to detect Aβ-sheet structures on cell surfaces at the nanoscale. Furthermore, this study is intended to raise neurobiologists’ awareness of the potential of s-SNOM as a tool for analyzing amyloid β-sheet structures at the nanoscale in neurons without the need for immunolabeling.
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Affiliation(s)
- Raul O. Freitas
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-970, Sao Paulo, Brazil;
- Correspondence: (R.O.F.); (O.K.)
| | - Adrian Cernescu
- Attocube Systems AG, Eglfinger Weg 2, 85540 Munich, Germany;
| | - Anders Engdahl
- Medical Microspectroscopy, Department of Experimental Medical Science, Lund University, 22180 Lund, Sweden; (A.E.); (A.P.)
| | - Agnes Paulus
- Medical Microspectroscopy, Department of Experimental Medical Science, Lund University, 22180 Lund, Sweden; (A.E.); (A.P.)
- Experimental Neuroinflammation Laboratory, Department of Experimental Medical Science, Lund University, 22180 Lund, Sweden;
| | - João E. Levandoski
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-970, Sao Paulo, Brazil;
| | - Isak Martinsson
- Experimental Dementia Research, Department of Experimental Medical Science, Lund University, 22180 Lund, Sweden; (I.M.); (G.K.G.)
| | - Elke Hebisch
- Division of Solid State Physics and NanoLund, Lund University, 22100 Lund, Sweden; (E.H.); (C.N.P.)
| | - Christophe Sandt
- Synchrotron SOLEIL, L’Orme des Merisiers, CEDEX, 91192 Gif Sur Yvette, France; (C.S.); (F.B.)
| | - Gunnar Keppler Gouras
- Experimental Dementia Research, Department of Experimental Medical Science, Lund University, 22180 Lund, Sweden; (I.M.); (G.K.G.)
| | - Christelle N. Prinz
- Division of Solid State Physics and NanoLund, Lund University, 22100 Lund, Sweden; (E.H.); (C.N.P.)
| | - Tomas Deierborg
- Experimental Neuroinflammation Laboratory, Department of Experimental Medical Science, Lund University, 22180 Lund, Sweden;
| | - Ferenc Borondics
- Synchrotron SOLEIL, L’Orme des Merisiers, CEDEX, 91192 Gif Sur Yvette, France; (C.S.); (F.B.)
| | - Oxana Klementieva
- Medical Microspectroscopy, Department of Experimental Medical Science, Lund University, 22180 Lund, Sweden; (A.E.); (A.P.)
- Correspondence: (R.O.F.); (O.K.)
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15
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Sandt C, Waeytens J, Deniset-Besseau A, Nielsen-Leroux C, Réjasse A. Use and misuse of FTIR spectroscopy for studying the bio-oxidation of plastics. Spectrochim Acta A Mol Biomol Spectrosc 2021; 258:119841. [PMID: 33932634 DOI: 10.1016/j.saa.2021.119841] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/15/2021] [Accepted: 04/12/2021] [Indexed: 05/23/2023]
Abstract
Due to massive production, inefficient waste collection, and long lives, plastics have become a source of persistent pollution. Biodegradation is explored as an environmentally friendly remediation method for removing plastics from the environment. Microbial and animal biodegradation methods have been reported in the literature for various plastics. Levels of plastic oxidation are often used as an evidence of degradation and can be measured with great sensitivity by Fourier Transform Infrared (FTIR) spectroscopy. FTIR is highly sensitive to the creation of new CO, CO and OH bonds during oxidation. However, many studies reporting the use of FTIR spectroscopy to evidence plastic oxidation confused the spectral signatures of biomass contamination (CO and CO from lipids, CONH from proteins, O-H from polysaccharides) with plastic oxidation. Here, based on spectra of oxidized plastic and of probable contaminants, we make recommendations for performing and analyzing FTIR measurements properly.
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Affiliation(s)
- Christophe Sandt
- SMIS beamline, Synchrotron Soleil, Orme des Merisiers, BP 48 Saint Aubin, 91192 Gif-sur-Yvette Cedex, France.
| | - Jehan Waeytens
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, 91405 Orsay, France; Structure et Fonction des Membranes Biologiques, Université libre de Bruxelles, B-1050 Bruxelles, Belgium
| | - Ariane Deniset-Besseau
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, 91405 Orsay, France
| | - Christina Nielsen-Leroux
- Micalis Institute, INRAE (National Research Institute for Agriculture, Food and Environment), AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Agnès Réjasse
- Micalis Institute, INRAE (National Research Institute for Agriculture, Food and Environment), AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
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16
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Abstract
Data volumes collected in many scientific fields have long exceeded the capacity of human comprehension. This is especially true in biomedical research where multiple replicates and techniques are required to conduct reliable studies. Ever-increasing data rates from new instruments compound our dependence on statistics to make sense of the numbers. The currently available data analysis tools lack user-friendliness, various capabilities or ease of access. Problem-specific software or scripts freely available in supplementary materials or research lab websites are often highly specialized, no longer functional, or simply too hard to use. Commercial software limits access and reproducibility, and is often unable to follow quickly changing, cutting-edge research demands. Finally, as machine learning techniques penetrate data analysis pipelines of the natural sciences, we see the growing demand for user-friendly and flexible tools to fuse machine learning with spectroscopy datasets. In our opinion, open-source software with strong community engagement is the way forward. To counter these problems, we develop Quasar, an open-source and user-friendly software, as a solution to these challenges. Here, we present case studies to highlight some Quasar features analyzing infrared spectroscopy data using various machine learning techniques.
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Affiliation(s)
- Marko Toplak
- Faculty of Computer and Information Science, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia
| | - Stuart T Read
- Canadian Light Source, Inc., 44 Innovation Boulevard, Saskatoon, SK S7N 2V3, Canada
| | - Christophe Sandt
- SOLEIL Synchrotron, L'Orme des Merisiers, Saint Aubin-BP 48, CEDEX, 91192 Gif sur Yvette, France
| | - Ferenc Borondics
- SOLEIL Synchrotron, L'Orme des Merisiers, Saint Aubin-BP 48, CEDEX, 91192 Gif sur Yvette, France
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17
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Sandt C, Borondics F. A new typology of human hair medullas based on lipid composition analysis by synchrotron FTIR microspectroscopy. Analyst 2021; 146:3942-3954. [PMID: 33982696 DOI: 10.1039/d1an00695a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Human hair is an organ that connects fundamental and applied research with everyday life through the cosmetic industry. Yet, the accurate compositional description of the human hair medulla is lacking due to their small size and difficulty with microextraction. Medullas are thus generally classified based on morphology. We investigated the chemical composition of the human hair medulla using synchrotron based infrared microspectroscopy. We confirmed that lipid signatures dominate the medulla infrared spectrum having 3-20 times higher lipid concentration compared to their surrounding cortex. Human hair medullas contain a mixture of non-esterified and esterified lipids, and carboxylate soaps in various proportions. We reveal the first direct spectroscopic evidence that medulla carboxylates are coordinated to calcium since they exhibit the specific calcium carboxylate signature. Using a representative sample, we observed a strong compositional variability between medullas that was unreported before. We detected calcium carboxylates in 76% of the medullas with one order of magnitude concentration variability between samples. All medullas contained esters with esterification varying by a factor of 30. Moreover, we detected the presence of crystalline calcium stearate in 9% of the medullas. We described a series of spectral markers to characterize medullas based on their lipid composition and propose to classify medullas in four to five groups. Our analysis provides a more detailed understanding of the chemical composition of human hair medullas that may impact cosmetics and biology. The origin and biological meaning of these variations must still be investigated.
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Affiliation(s)
- Christophe Sandt
- SMIS beamline, SOLEIL Synchrotron, BP48, l'Orme des Merisiers, 91192 Gif-sur-Yvette CEDEX, France.
| | - Ferenc Borondics
- SMIS beamline, SOLEIL Synchrotron, BP48, l'Orme des Merisiers, 91192 Gif-sur-Yvette CEDEX, France.
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18
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Turbant F, Hamoui OE, Partouche D, Sandt C, Busi F, Wien F, Arluison V. Identification and characterization of the Hfq bacterial amyloid region DNA interactions. BBA Advances 2021; 1:100029. [PMID: 37082015 PMCID: PMC10074921 DOI: 10.1016/j.bbadva.2021.100029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 11/18/2022] Open
Abstract
Nucleic acid amyloid proteins interactions have been observed in the past few years. These interactions often promote protein aggregation. Nevertheless, molecular basis and physiological consequences of these interactions are still poorly understood. Additionally, it is unknown whether the nucleic acid promotes the formation of self-assembly due to direct interactions or indirectly via sequences surrounding the amyloid region. Here we focus our attention on a bacterial amyloid, Hfq. This protein is a pleiotropic bacterial regulator that mediates many aspects of nucleic acids metabolism. The protein notably mediates mRNA stability and translation efficiency by using stress-related small non coding regulatory RNA. In addition, Hfq, thanks to its amyloid C-terminal region, binds and compacts DNA. A combination of experimental methodologies, including synchrotron radiation circular dichroism (SRCD), gel shift assay and infrared (FTIR) spectroscopy have been used to probe the interaction of Hfq C-terminal region with DNA. We clearly identify important amino acids in this region involved in DNA binding and polymerization properties. This allows to understand better how this bacterial amyloid interacts with DNA. Possible functional consequence to answer to stresses are discussed.
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Affiliation(s)
- Florian Turbant
- Laboratoire Léon Brillouin LLB, CEA, CNRS UMR12, Université Paris Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland
| | - Omar El Hamoui
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin BP48, 91192, Gif-sur-Yvette, France
| | - David Partouche
- Laboratoire Léon Brillouin LLB, CEA, CNRS UMR12, Université Paris Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin BP48, 91192, Gif-sur-Yvette, France
| | - Christophe Sandt
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin BP48, 91192, Gif-sur-Yvette, France
| | - Florent Busi
- Université de Paris, UFR Sciences du vivant, 75006 Paris cedex, France
- Université de Paris, BFA, UMR 8251, CNRS, F-75013 Paris, France
| | - Frank Wien
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin BP48, 91192, Gif-sur-Yvette, France
- Corresponding author.
| | - Véronique Arluison
- Laboratoire Léon Brillouin LLB, CEA, CNRS UMR12, Université Paris Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
- Université de Paris, UFR Sciences du vivant, 75006 Paris cedex, France
- Corresponding author.
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19
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Magnussen EA, Solheim JH, Blazhko U, Tafintseva V, Tøndel K, Liland KH, Dzurendova S, Shapaval V, Sandt C, Borondics F, Kohler A. Deep convolutional neural network recovers pure absorbance spectra from highly scatter-distorted spectra of cells. J Biophotonics 2020; 13:e202000204. [PMID: 32844585 DOI: 10.1002/jbio.202000204] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 08/21/2020] [Accepted: 08/21/2020] [Indexed: 06/11/2023]
Abstract
Infrared spectroscopy of cells and tissues is prone to Mie scattering distortions, which grossly obscure the relevant chemical signals. The state-of-the-art Mie extinction extended multiplicative signal correction (ME-EMSC) algorithm is a powerful tool for the recovery of pure absorbance spectra from highly scatter-distorted spectra. However, the algorithm is computationally expensive and the correction of large infrared imaging datasets requires weeks of computations. In this paper, we present a deep convolutional descattering autoencoder (DSAE) which was trained on a set of ME-EMSC corrected infrared spectra and which can massively reduce the computation time for scatter correction. Since the raw spectra showed large variability in chemical features, different reference spectra matching the chemical signals of the spectra were used to initialize the ME-EMSC algorithm, which is beneficial for the quality of the correction and the speed of the algorithm. One DSAE was trained on the spectra, which were corrected with different reference spectra and validated on independent test data. The DSAE outperformed the ME-EMSC correction in terms of speed, robustness, and noise levels. We confirm that the same chemical information is contained in the DSAE corrected spectra as in the spectra corrected with ME-EMSC.
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Affiliation(s)
| | | | - Uladzislau Blazhko
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
- United Institute of Informatics Problems, National Academy of Sciences of Belarus, Minsk, Belarus
| | - Valeria Tafintseva
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - Kristin Tøndel
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - Kristian Hovde Liland
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - Simona Dzurendova
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - Volha Shapaval
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
| | | | | | - Achim Kohler
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
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20
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Nguyen TD, Guyot S, Pénicaud C, Passot S, Sandt C, Fonseca F, Saurel R, Husson F. Highlighting Protective Effect of Encapsulation on Yeast Cell Response to Dehydration Using Synchrotron Infrared Microspectroscopy at the Single-Cell Level. Front Microbiol 2020; 11:1887. [PMID: 32849466 PMCID: PMC7427109 DOI: 10.3389/fmicb.2020.01887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 02/03/2020] [Accepted: 07/20/2020] [Indexed: 01/15/2023] Open
Abstract
In the present paper, the Layer by Layer (LbL) method using β-lactoglobulin and sodium alginate was performed to individually encapsulate Saccharomyces cerevisiae cells in microorganized shells in order to protect them against stresses during dehydration. Higher survival (∼1 log) for encapsulated yeast cells was effectively observed after air dehydration at 45°C. For the first time, the potentiality of Synchrotron-Fourier Transform InfraRed microspectroscopy (S-FTIR) was used at the single-cell level in order to analyze the contribution of the biochemical composition of non-encapsulated vs. encapsulated cells in response to dehydration. The microspectroscopy measurements clearly differentiated between non-encapsulated and encapsulated yeast cells in the amide band region. In the spectral region specific to lipids, the S-FTIR results indicated probably the decrease in membrane fluidity of yeast after dehydration without significant distinction between the two samples. These data suggested minor apparent chemical changes in cell attributable to the LbL system upon dehydration. More insights are expected regarding the lower mortality among encapsulated cells. Indeed the hypothesis that the biopolymeric layers could induce less damage in cell by affecting the transfer kinetics during dehydration-rehydration cycle, should be verified in further work.
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Affiliation(s)
- Thanh Dat Nguyen
- UMR PAM A 02.102, AgroSup Dijon, Université Bourgogne Franche-Comté, Dijon, France
| | - Stéphane Guyot
- UMR PAM A 02.102, AgroSup Dijon, Université Bourgogne Franche-Comté, Dijon, France
| | - Caroline Pénicaud
- INRAE, AgroParisTech, Université Paris-Saclay, Thiverval-Grignon, France
| | - Stéphanie Passot
- INRAE, AgroParisTech, Université Paris-Saclay, Thiverval-Grignon, France
| | | | - Fernanda Fonseca
- INRAE, AgroParisTech, Université Paris-Saclay, Thiverval-Grignon, France
| | - Rémi Saurel
- UMR PAM A 02.102, AgroSup Dijon, Université Bourgogne Franche-Comté, Dijon, France
| | - Florence Husson
- UMR PAM A 02.102, AgroSup Dijon, Université Bourgogne Franche-Comté, Dijon, France
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21
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Drozdz A, Matusiak K, Setkowicz Z, Ciarach M, Janeczko K, Sandt C, Borondics F, Horak D, Babic M, Chwiej J. FTIR microspectroscopy revealed biochemical changes in liver and kidneys as a result of exposure to low dose of iron oxide nanoparticles. Spectrochim Acta A Mol Biomol Spectrosc 2020; 236:118355. [PMID: 32344375 DOI: 10.1016/j.saa.2020.118355] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 04/06/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
Iron oxide nanoparticles (IONPs) have biomedical and biotechnological applications in magnetic imaging, drug-delivery, magnetic separation and purification. The biocompatibility of such particles may be improved by covering them with coating. In presented paper the biochemical anomalies of liver and kidney occurring in animals exposed to d-mannitol-coated iron(III) oxide nanoparticles (M-IONPs) were examined with Fourier transform infrared (FTIR) microspectroscopy. The dose of IONPs used in the study was significantly lower than those used so far in other research. Liver and kidney tissue sections were analysed by chemical mapping of infrared absorption bands originating from proteins, lipids, compounds containing phosphate groups, cholesterol and cholesterol esters. Changes in content and/or structure of the selected biomolecules were evaluated by comparison of the results obtained for animals treated with M-IONPs with those from control group. Biochemical analysis of liver samples demonstrated a few M-IONPs induced anomalies in the organ, mostly concerning the relative content of the selected compounds. The biomolecular changes, following exposition to nanoparticles, were much more intense within the kidney tissue. Biochemical aberrations found in the organ samples indicated at increase of tissue density, anomalies in fatty acids structure as well as changes in relative content of lipids and proteins. The simultaneous accumulation of lipids, phosphate groups as well as cholesterol and cholesterol esters in kidneys of rats exposed to IONPs may indicate that the particles stimulated formation of lipid droplets within the organ.
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Affiliation(s)
- Agnieszka Drozdz
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland.
| | - Katarzyna Matusiak
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland
| | - Zuzanna Setkowicz
- Jagiellonian University, Institute of Zoology and Biomedical Research, Krakow, Poland
| | - Malgorzata Ciarach
- Jagiellonian University, Institute of Zoology and Biomedical Research, Krakow, Poland
| | - Krzysztof Janeczko
- Jagiellonian University, Institute of Zoology and Biomedical Research, Krakow, Poland
| | | | | | - Daniel Horak
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Michal Babic
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Joanna Chwiej
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland
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22
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Câmara AA, Nguyen TD, Saurel R, Sandt C, Peltier C, Dujourdy L, Husson F. Biophysical Stress Responses of the Yeast Lachancea thermotolerans During Dehydration Using Synchrotron-FTIR Microspectroscopy. Front Microbiol 2020; 11:899. [PMID: 32477306 PMCID: PMC7235352 DOI: 10.3389/fmicb.2020.00899] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 12/17/2019] [Accepted: 04/16/2020] [Indexed: 01/17/2023] Open
Abstract
During industrial yeast production, cells are often subjected to deleterious hydric variations during dehydration, which reduces their viability and cellular activity. This study is focused on the yeast Lachancea thermotolerans, particularly sensitive to dehydration. The aim was to understand the modifications of single-cells biophysical profiles during different dehydration conditions. Infrared spectra of individual cells were acquired before and after dehydration kinetics using synchrotron radiation-based Fourier-transform infrared (S-FTIR) microspectroscopy. The cells were previously stained with fluorescent probes in order to measure only viable and active cells prior to dehydration. In parallel, cell viability was determined using flow cytometry under identical conditions. The S-FTIR analysis indicated that cells with the lowest viability showed signs of membrane rigidification and modifications in the amide I (α-helix and β-sheet) and amide II, which are indicators of secondary protein structure conformation and degradation or disorder. Shift of symmetric C–H stretching vibration of the CH2 group upon a higher wavenumber correlated with better cell viability, suggesting a role of plasma membrane fluidity. This was the first time that the biophysical responses of L. thermotolerans single-cells to dehydration were explored with S-FTIR. These findings are important for clarifying the mechanisms of microbial resistance to stress in order to improve the viability of sensitive yeasts during dehydration.
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Affiliation(s)
| | - Thanh Dat Nguyen
- Univ. Bourgogne Franche-Comt, AgroSup Dijon, PAM UMR A 02.102, Dijon, France
| | - Rémi Saurel
- Univ. Bourgogne Franche-Comt, AgroSup Dijon, PAM UMR A 02.102, Dijon, France
| | | | - Caroline Peltier
- Univ. Bourgogne Franche-Comt, AgroSup Dijon, PAM UMR A 02.102, Dijon, France
| | | | - Florence Husson
- Univ. Bourgogne Franche-Comt, AgroSup Dijon, PAM UMR A 02.102, Dijon, France
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Bourdenx M, Nioche A, Dovero S, Arotcarena ML, Camus S, Porras G, Thiolat ML, Rougier NP, Prigent A, Aubert P, Bohic S, Sandt C, Laferrière F, Doudnikoff E, Kruse N, Mollenhauer B, Novello S, Morari M, Leste-Lasserre T, Trigo-Damas I, Goillandeau M, Perier C, Estrada C, Garcia-Carrillo N, Recasens A, Vaikath NN, El-Agnaf OMA, Herrero MT, Derkinderen P, Vila M, Obeso JA, Dehay B, Bezard E. Identification of distinct pathological signatures induced by patient-derived α-synuclein structures in nonhuman primates. Sci Adv 2020; 6:eaaz9165. [PMID: 32426502 PMCID: PMC7220339 DOI: 10.1126/sciadv.aaz9165] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 03/06/2020] [Indexed: 06/11/2023]
Abstract
Dopaminergic neuronal cell death, associated with intracellular α-synuclein (α-syn)-rich protein aggregates [termed "Lewy bodies" (LBs)], is a well-established characteristic of Parkinson's disease (PD). Much evidence, accumulated from multiple experimental models, has suggested that α-syn plays a role in PD pathogenesis, not only as a trigger of pathology but also as a mediator of disease progression through pathological spreading. Here, we have used a machine learning-based approach to identify unique signatures of neurodegeneration in monkeys induced by distinct α-syn pathogenic structures derived from patients with PD. Unexpectedly, our results show that, in nonhuman primates, a small amount of singular α-syn aggregates is as toxic as larger amyloid fibrils present in the LBs, thus reinforcing the need for preclinical research in this species. Furthermore, our results provide evidence supporting the true multifactorial nature of PD, as multiple causes can induce a similar outcome regarding dopaminergic neurodegeneration.
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Affiliation(s)
- M. Bourdenx
- Univ. de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
| | - A. Nioche
- Univ. de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- Institut Jean Nicod, Département d’études cognitives, ENS, EHESS, PSL Research University, 75005 Paris, France
- Institut Jean Nicod, Département d’études cognitives, CNRS, UMR 8129, Paris, France
| | - S. Dovero
- Univ. de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
| | - M.-L. Arotcarena
- Univ. de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
| | - S. Camus
- Univ. de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
| | - G. Porras
- Univ. de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
| | - M.-L. Thiolat
- Univ. de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
| | - N. P. Rougier
- Univ. de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- INRIA Bordeaux Sud-Ouest, 33405 Talence, France
| | - A. Prigent
- INSERM, U1235, Nantes F-44035, France
- Nantes University, Nantes F-44035, France
- CHU Nantes, Department of Neurology, Nantes F-44093, France
| | - P. Aubert
- INSERM, U1235, Nantes F-44035, France
- Nantes University, Nantes F-44035, France
- CHU Nantes, Department of Neurology, Nantes F-44093, France
| | - S. Bohic
- EA-7442 Rayonnement Synchrotron et Recherche Medicale, RSRM, University of Grenoble Alpes, 38000 Grenoble, France
| | - C. Sandt
- SMIS beamline, Synchrotron SOLEIL, l’orme des merisiers, 91192 Gif sur Yvette, France
| | - F. Laferrière
- Univ. de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
| | - E. Doudnikoff
- Univ. de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
| | - N. Kruse
- Paracelsus-Elena-Klinik, Kassel, Germany
- University Medical Center Goettingen, Institute of Neuropathology, Goettingen, Germany
| | - B. Mollenhauer
- Paracelsus-Elena-Klinik, Kassel, Germany
- University Medical Center Goettingen, Institute of Neuropathology, Goettingen, Germany
| | - S. Novello
- Department of Medical Sciences, Section of Pharmacology, University of Ferrara, via Fossato di Mortara 17-19, 44121 Ferrara, Italy
- Neuroscience Center and National Institute of Neuroscience, University of Ferrara, via Fossato di Mortara 17-19, 44121 Ferrara, Italy
| | - M. Morari
- Department of Medical Sciences, Section of Pharmacology, University of Ferrara, via Fossato di Mortara 17-19, 44121 Ferrara, Italy
- Neuroscience Center and National Institute of Neuroscience, University of Ferrara, via Fossato di Mortara 17-19, 44121 Ferrara, Italy
| | - T. Leste-Lasserre
- INSERM, Neurocentre Magendie, U1215, Physiopathologie de la Plasticité Neuronale, F-33000 Bordeaux, France
| | - I. Trigo-Damas
- HM CINAC, HM Puerta del Sur and CEU–San Pablo University Madrid, E-28938 Mostoles, Spain
- Center for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED), Instituto Carlos III, Madrid, Spain
| | - M. Goillandeau
- Univ. de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
| | - C. Perier
- Center for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED), Instituto Carlos III, Madrid, Spain
- Neurodegenerative Diseases Research Group, Vall d’Hebron Research Institute (VHIR)–Center for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED), Barcelona, Spain
| | - C. Estrada
- Clinical and Experimental Neuroscience Unit, School of Medicine, Biomedical Research Institute of Murcia (IMIB), University of Murcia, Campus Mare Nostrum, 30100 Murcia, Spain
- Institute of Research on Aging (IUIE), School of Medicine, University of Murcia, 30100 Murcia, Spain
| | - N. Garcia-Carrillo
- Centro Experimental en Investigaciones Biomédica (CEIB), Universidad de Murcia, Murcia, Spain
| | - A. Recasens
- Center for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED), Instituto Carlos III, Madrid, Spain
- Neurodegenerative Diseases Research Group, Vall d’Hebron Research Institute (VHIR)–Center for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED), Barcelona, Spain
| | - N. N. Vaikath
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Education City, Qatar
| | - O. M. A. El-Agnaf
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Education City, Qatar
| | - M. T. Herrero
- Clinical and Experimental Neuroscience Unit, School of Medicine, Biomedical Research Institute of Murcia (IMIB), University of Murcia, Campus Mare Nostrum, 30100 Murcia, Spain
- Institute of Research on Aging (IUIE), School of Medicine, University of Murcia, 30100 Murcia, Spain
| | - P. Derkinderen
- INSERM, U1235, Nantes F-44035, France
- Nantes University, Nantes F-44035, France
- CHU Nantes, Department of Neurology, Nantes F-44093, France
| | - M. Vila
- Center for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED), Instituto Carlos III, Madrid, Spain
- Neurodegenerative Diseases Research Group, Vall d’Hebron Research Institute (VHIR)–Center for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED), Barcelona, Spain
- Department of Biochemistry and Molecular Biology, Autonomous University of Barcelona (UAB), Barcelona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
| | - J. A. Obeso
- HM CINAC, HM Puerta del Sur and CEU–San Pablo University Madrid, E-28938 Mostoles, Spain
- Center for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED), Instituto Carlos III, Madrid, Spain
| | - B. Dehay
- Univ. de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
| | - E. Bezard
- Univ. de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000 Bordeaux, France
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24
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Philippe G, Geneix N, Petit J, Guillon F, Sandt C, Rothan C, Lahaye M, Marion D, Bakan B. Assembly of tomato fruit cuticles: a cross-talk between the cutin polyester and cell wall polysaccharides. New Phytol 2020; 226:809-822. [PMID: 31883116 DOI: 10.1111/nph.16402] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 12/17/2019] [Indexed: 05/23/2023]
Abstract
The cuticle is an essential and ubiquitous biological polymer composite covering aerial plant organs, whose structural component is the cutin polyester entangled with cell wall polysaccharides. The nature of the cutin-embedded polysaccharides (CEPs) and their association with cutin polyester are still unresolved Using tomato fruit as a model, chemical and enzymatic pretreatments combined with biochemical and biophysical methods were developed to compare the fine structure of CEPs with that of the noncutinized polysaccharides (NCPs). In addition, we used tomato fruits from cutin-deficient transgenic lines cus1 (cutin synthase 1) to study the impact of cutin polymerization on the fine structure of CEPs. Cutin-embedded polysaccharides exhibit specific structural features including a high degree of esterification (i.e. methylation and acetylation), a low ramification of rhamnogalacturonan (RGI), and a high crystallinity of cellulose. In addition to decreasing cutin deposition and polymerization, cus1 silencing induced a specific modification of CEPs, especially on pectin content, while NCPs were not affected. This new evidence of the structural specificities of CEPs and of the cross-talk between cutin polymerization and polysaccharides provides new hypotheses concerning the formation of these complex lipopolysaccharide edifices.
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Affiliation(s)
- Glenn Philippe
- Unité Biopolymères, Interactions, Assemblages, INRAE, BP71627, 44316, Nantes Cedex 3, France
| | - Nathalie Geneix
- Unité Biopolymères, Interactions, Assemblages, INRAE, BP71627, 44316, Nantes Cedex 3, France
| | - Johann Petit
- UMR 1332 Biologie du Fruit et Pathologie - INRAE Bordeaux-Aquitaine Bât, IBVM , 71 av. Edouard Bourlaux, CS 20032, 33882, Villenave d'Ornon Cedex, France
| | - Fabienne Guillon
- Unité Biopolymères, Interactions, Assemblages, INRAE, BP71627, 44316, Nantes Cedex 3, France
| | - Christophe Sandt
- Synchrotron SOLEIL, Ligne SMIS, L'Orme des Merisiers, 91192, Gif-sur-Yvette, France
| | - Christophe Rothan
- UMR 1332 Biologie du Fruit et Pathologie - INRAE Bordeaux-Aquitaine Bât, IBVM , 71 av. Edouard Bourlaux, CS 20032, 33882, Villenave d'Ornon Cedex, France
| | - Marc Lahaye
- Unité Biopolymères, Interactions, Assemblages, INRAE, BP71627, 44316, Nantes Cedex 3, France
| | - Didier Marion
- Unité Biopolymères, Interactions, Assemblages, INRAE, BP71627, 44316, Nantes Cedex 3, France
| | - Bénédicte Bakan
- Unité Biopolymères, Interactions, Assemblages, INRAE, BP71627, 44316, Nantes Cedex 3, France
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Klementieva O, Sandt C, Martinsson I, Kansiz M, Gouras GK, Borondics F. Super-Resolution Infrared Imaging of Polymorphic Amyloid Aggregates Directly in Neurons. Adv Sci (Weinh) 2020; 7:1903004. [PMID: 32195099 PMCID: PMC7080554 DOI: 10.1002/advs.201903004] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/12/2020] [Indexed: 05/06/2023]
Abstract
Loss of memory during Alzheimer's disease (AD), a fatal neurodegenerative disorder, is associated with neuronal loss and the aggregation of amyloid proteins into neurotoxic β-sheet enriched structures. However, the mechanism of amyloid protein aggregation is still not well understood due to many challenges when studying the endogenous amyloid structures in neurons or in brain tissue. Available methods either require chemical processing of the sample or may affect the amyloid protein structure itself. Therefore, new approaches, which allow studying molecular structures directly in neurons, are urgently needed. A novel approach is tested, based on label-free optical photothermal infrared super-resolution microspectroscopy, to study AD-related amyloid protein aggregation directly in the neuron at sub-micrometer resolution. Using this approach, amyloid protein aggregates are detected at the subcellular level, along the neurites and strikingly, in dendritic spines, which has not been possible until now. Here, a polymorphic nature of amyloid structures that exist in AD transgenic neurons is reported. Based on the findings of this work, it is suggested that structural polymorphism of amyloid proteins that occur already in neurons may trigger different mechanisms of AD progression.
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Affiliation(s)
- Oxana Klementieva
- Medical Microspectroscopy Research GroupDepartment of Experimental Medical ScienceLund University22180LundSweden
- Lund Institute for advanced Neutron and X‐ray Science (LINXS)223 70LundSweden
| | - Christophe Sandt
- Synchrotron SOLEILL'Orme des Merisiers91192Gif Sur YvetteCedexFrance
| | - Isak Martinsson
- Experimental Dementia ResearchDepartment of Experimental Medical ScienceLund University22180LundSweden
| | - Mustafa Kansiz
- Photothermal Spectroscopy CorporationSanta BarbaraCA93101USA
| | - Gunnar K. Gouras
- Experimental Dementia ResearchDepartment of Experimental Medical ScienceLund University22180LundSweden
| | - Ferenc Borondics
- Synchrotron SOLEILL'Orme des Merisiers91192Gif Sur YvetteCedexFrance
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26
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Modugno C, Peltier C, Simonin H, Dujourdy L, Capitani F, Sandt C, Perrier-Cornet JM. Understanding the Effects of High Pressure on Bacterial Spores Using Synchrotron Infrared Spectroscopy. Front Microbiol 2020; 10:3122. [PMID: 32082270 PMCID: PMC7005592 DOI: 10.3389/fmicb.2019.03122] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 02/14/2019] [Accepted: 12/24/2019] [Indexed: 12/02/2022] Open
Abstract
Bacterial spores are extremely resistant life-forms that play an important role in food spoilage and foodborne disease. The return of spores to a vegetative cell state is a three-step process, these being activation, germination, and emergence. High-pressure (HP) processing is known to induce germination in part of the spore population and even to inactivate a high number of Bacillus spores when combined with other mild treatments such as the addition of nisin. The aim of the present work was to investigate the mechanisms involved in the sensitization of spores to nisin following HP treatment at ambient temperature or with moderate heating leading to a heterogeneous spore response. Bacillus subtilis spores were subjected to HP treatment at 500 MPa at 20 and 50°C. The physiological state of different subpopulations was characterized. Then Fourier transform infrared (FTIR) microspectroscopy coupled to a synchrotron infrared source was used to explore the heterogeneity of the biochemical signatures of the spores after the same HP treatments. Our results confirm that HP at 50°C induces the germination of a large proportion of the spore population. HP treatment at 20°C generated a subpopulation of ungerminated spores reversibly sensitized to the presence of nisin in their growth medium. Regarding infrared spectra of individual spores, spores treated by HP at 50°C and germinated spores had similar spectral signatures involving the same structural properties. However, after HP was performed at 20°C, two groups of spores were distinguished; one of these groups was clearly identified as germinated spores. The second group displayed a unique spectral signature, with shifts in the spectral bands corresponding to changes in membrane fluidity. Besides, spores spectra in the amide region could be divided into several groups close to spectral properties of dormant, germinated, or inactivated spores. The part of the spectra corresponding to α-helix and β-sheet-structures contribute mainly to the spectral variation between spores treated by HP at 20°C and other populations. These changes in the lipid and amide regions could be the signature of reversible changes linked to spore activation.
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Affiliation(s)
- Chloé Modugno
- AgroSup Dijon, PAM UMR A 02.102, Université Bourgogne Franche-Comté, Dijon, France
| | - Caroline Peltier
- AgroSup Dijon, PAM UMR A 02.102, Université Bourgogne Franche-Comté, Dijon, France
| | - Hélène Simonin
- AgroSup Dijon, PAM UMR A 02.102, Université Bourgogne Franche-Comté, Dijon, France
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Clède S, Sandt C, Dumas P, Policar C. Monitoring the Kinetics of the Cellular Uptake of a Metal Carbonyl Conjugated with a Lipidic Moiety in Living Cells Using Synchrotron Infrared Spectromicroscopy. Appl Spectrosc 2020; 74:63-71. [PMID: 31617373 DOI: 10.1177/0003702819877260] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Presented here is the exploitation of synchrotron infrared spectromicroscopy to evaluate the feasibility of monitoring the cellular uptake of rhenium-tris-carbonyl-tagged (Re(CO)3) lipophilic chains in living cells. To this aim, an in-house thermostated microfluidic device was used to limit water absorption while keeping cells alive. Indeed, cells showed a high survival rate in the microfluidic device over the course of the experiment, proving the short-term biocompatibility of the device. We recorded spectra of single, living, fully hydrated breast cancer MDA-MB231 cells and could follow the penetration of the rhenium complexes for up to 2 h. Despite the strong variations observed in the uptake kinetics between individual cells, the Re(CO)3 complex was traced inside the cells at low concentration and shown to enter them on the hour time scale by active transport.
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Affiliation(s)
- Sylvain Clède
- Laboratoire des biomolécules, LBM, Département de chimie, Ecole normale supérieure, PSL University, Sorbonne université, Paris, France
| | - Christophe Sandt
- SMIS beamline, SOLEIL synchrotron, L'orme des Merisiers, Gif sur Yvette, France
| | - Paul Dumas
- SMIS beamline, SOLEIL synchrotron, L'orme des Merisiers, Gif sur Yvette, France
| | - Clotilde Policar
- Laboratoire des biomolécules, LBM, Département de chimie, Ecole normale supérieure, PSL University, Sorbonne université, Paris, France
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Dinant S, Wolff N, De Marco F, Vilaine F, Gissot L, Aubry E, Sandt C, Bellini C, Le Hir R. Synchrotron FTIR and Raman spectroscopy provide unique spectral fingerprints for Arabidopsis floral stem vascular tissues. J Exp Bot 2019; 70:871-884. [PMID: 30407539 DOI: 10.1093/jxb/ery396] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 10/30/2018] [Indexed: 05/22/2023]
Abstract
Cell walls are highly complex structures that are modified during plant growth and development. For example, the development of phloem and xylem vascular cells, which participate in the transport of sugars and water as well as providing support, can be influenced by cell-specific wall composition. Here, we used synchrotron radiation-based Fourier-transform infrared (SR-FTIR) and Raman spectroscopy to analyse the cell wall composition of floral stem vascular tissues of wild-type Arabidopsis and the double-mutant sweet11-1 sweet12-1, which has impaired sugar transport. The SR-FTIR spectra showed that in addition to modified xylem cell wall composition, phloem cell walls in the double-mutant line were characterized by modified hemicellulose composition. Combining Raman spectroscopy with a classification and regression tree (CART) method identified combinations of Raman shifts that could distinguish xylem vessels and fibers. In addition, the disruption of the SWEET11 and SWEET12 genes impacted on xylem wall composition in a cell-specific manner, with changes in hemicelluloses and cellulose observed at the xylem vessel interface. These results suggest that the facilitated transport of sugars by transporters that exist between vascular parenchyma cells and conducting cells is important in ensuring correct phloem and xylem cell wall composition.
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Affiliation(s)
- S Dinant
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay,Versailles, France
| | - N Wolff
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay,Versailles, France
| | - F De Marco
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay,Versailles, France
| | - F Vilaine
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay,Versailles, France
| | - L Gissot
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay,Versailles, France
| | - E Aubry
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay,Versailles, France
| | - C Sandt
- Synchrotron SOLEIL, Ligne SMIS, L'Orme des Merisiers, Gif sur Yvette, France
| | - C Bellini
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay,Versailles, France
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, Umeå, Sweden
| | - R Le Hir
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay,Versailles, France
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Chwiej JG, Ciesielka SW, Skoczen AK, Janeczko KJ, Sandt C, Planeta KL, Setkowicz ZK. Biochemical Changes Indicate Developmental Stage in the Hippocampal Formation. ACS Chem Neurosci 2019; 10:628-635. [PMID: 30375847 DOI: 10.1021/acschemneuro.8b00471] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The literature showing how age of humans or animals influences the IR absorption spectra recorded in different brain regions is very poor. A very limited number of studies used FTIR microspectroscopy for analysis of the aging process, however there is lack of data concerning the biomolecular changes occurring in the course of postnatal development of the central nervous system. Therefore, in this paper the topographic and semiquantitative biochemical changes occurring within the rat hippocampus during postnatal development were examined. To achieve the goal of the study, three groups of normal male rats differing in age were investigated. These were 6, 30, and 60 day old animals, and the chosen ages correspond to the neonatal period, childhood, and early adulthood in humans, respectively. Already, preliminary topographic analysis identified a number of significant changes in the accumulation of biomolecules within the hippocampal formation occurring during brain development. Such observation was confirmed by further semiquantitative analysis of intensities of selected absorption bands or ratios of their intensities. The detailed examinations were done for four hippocampal cellular layers (multiform, molecular, pyramidal, and granular layers), and the results showed that the accumulation of most biomolecules, including both saturated and unsaturated lipids as well as compounds containing phosphate and carbonyl groups, was significantly higher in adulthood comparing to the neonatal period. What is more, the increases in their levels were observed mostly between 6th and 30th days of animals' life. The unsaturation level of lipids did not change during postnatal development, although the differences in unsaturated and saturated lipids contents were noticed between examined animal groups. Significant differences in relative secondary structure of proteins were found between young adult rats and animals in neonatal period for which the relative level of proteins with β-type secondary structure was the highest.
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Affiliation(s)
- Joanna G. Chwiej
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
| | - Stanislaw W. Ciesielka
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
| | - Agnieszka K. Skoczen
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
| | - Krzysztof J. Janeczko
- Jagiellonian University, Institute of Zoology and Biomedical Research, Krakow 30-387, Poland
| | | | - Karolina L. Planeta
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
| | - Zuzanna K. Setkowicz
- Jagiellonian University, Institute of Zoology and Biomedical Research, Krakow 30-387, Poland
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Sandt C, Feraud O, Bonnet ML, Desterke C, Khedhir R, Flamant S, Bailey CG, Rasko JEJ, Dumas P, Bennaceur-Griscelli A, Turhan AG. Direct and rapid identification of T315I-Mutated BCR-ABL expressing leukemic cells using infrared microspectroscopy. Biochem Biophys Res Commun 2018; 503:1861-1867. [PMID: 30057314 DOI: 10.1016/j.bbrc.2018.07.127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 07/10/2018] [Revised: 07/20/2018] [Accepted: 07/24/2018] [Indexed: 01/07/2023]
Abstract
Despite the major success obtained by the use of tyrosine kinase inhibitors (TKI) in chronic myeloid leukemia (CML), resistances to therapies occur due to mutations in the ABL-kinase domain of the BCR-ABL oncogene. Amongst these mutations, the "gatekeeper" T315I is a major concern as it renders leukemic cells resistant to all licenced TKI except Ponatinib. We report here that Fourier transform infrared (FTIR) microspectroscopy is a powerful methodology allowing rapid and direct identification of a spectral signature in single cells expressing T315I-mutated BCR-ABL. The specificity of this spectral signature is confirmed using a Dox-inducible T315I-mutated BCR-ABL-expressing human UT-7 cells as well as in murine embryonic stem cells. Transcriptome analysis of UT-7 cells expressing BCR-ABL as compared to BCR-ABL T315I clearly identified a molecular signature which could be at the origin of the generation of metabolic changes giving rise to the spectral signature. Thus, these results suggest that this new methodology can be applied to the identification of leukemic cells harbouring the T315I mutation at the single cell level and could represent a novel early detection tool of mutant clones. It could also be applied to drug screening strategies to target T315I-mutated leukemic cells.
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MESH Headings
- Animals
- Cell Line
- Fusion Proteins, bcr-abl/genetics
- Fusion Proteins, bcr-abl/metabolism
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Mice
- Mutation
- Spectroscopy, Fourier Transform Infrared
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Affiliation(s)
| | | | | | | | | | | | - Charles G Bailey
- Gene and Stem Cell Therapy Program, Centenary Institute, University of Sydney, Locked Bag No 6, Newtown, NSW, 2042, Australia; Sydney Medical School, University of Sydney, 2006, NSW, Australia
| | - John E J Rasko
- Gene and Stem Cell Therapy Program, Centenary Institute, University of Sydney, Locked Bag No 6, Newtown, NSW, 2042, Australia; Sydney Medical School, University of Sydney, 2006, NSW, Australia; Cell and Molecular Therapies, Royal Prince Alfred Hospital, Camperdown, 2052, NSW, Australia
| | - Paul Dumas
- SOLEIL Synchrotron, Saint Aubin, 91192, Gif sur Yvette, France
| | - Annelise Bennaceur-Griscelli
- INSERM UMR_S_935, Campus CNRS, Villejuif, France; Department of Hematology, Paris Sud Hematology Institute, AP-HP Hôpital Paul Brousse, Villejuif, France; INGESTEM National Pluripotent Stem Cell Infrastructure, University Paris Sud 11, Villejuif, France
| | - Ali G Turhan
- INSERM UMR_S_935, Campus CNRS, Villejuif, France; Department of Hematology, Paris Sud Hematology Institute, AP-HP Hôpital Paul Brousse, Villejuif, France; INGESTEM National Pluripotent Stem Cell Infrastructure, University Paris Sud 11, Villejuif, France.
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31
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Essaid D, Tfayli A, Maillard P, Sandt C, Rosilio V, Baillet-Guffroy A, Kasselouri A. Retinoblastoma membrane models and their interactions with porphyrin photosensitisers: An infrared microspectroscopy study. Chem Phys Lipids 2018; 215:34-45. [PMID: 30026072 DOI: 10.1016/j.chemphyslip.2018.07.003] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 07/02/2018] [Accepted: 07/11/2018] [Indexed: 12/16/2022]
Abstract
Fourier Transform Infrared (FTIR) microspectroscopy was used to highlight the interactions between two photosensitisers (PS) of different geometries, TPPmOH4 and a glycoconjugated analogous, TPPDegMan, and lipid bilayers modelling retinoblastoma cell membranes. Retinoblastoma is a rare disease occurring in young infants, for whom conservative treatments may present harmful side-effects. Photodynamic therapy (PDT) is expected to induce less side-effects, as the photosensitiser is only activated when the tumour is illuminated. Since efficiency of the treatment relies on photosensitiser penetration in cancer cells, bilayers with three lipid compositions - pure SOPC, SOPC/SOPE/SOPS/Chol (56:23:11:10) and SOPC/SOPE/SOPS/Chol/CL (42:32:9:8:6) - were used as plasma and mitochondria model membranes. FTIR spectra showed that the interaction of the PSs with the lipid bilayers impacted the lipid organization of the latter, causing significant spectral variations. Both studied photosensitisers inserted at the level of lipid hydrophobic chains, increasing chain fluidity and disorder. This was confirmed by surface pressure measurements. Photosensitisers - TPPmOH4 more than TPPDegMan - also interacted with the polar region of the bilayer, forming hydrogen bonds with phosphate groups that induced major shifts of phosphate absorption bands. This difference in PS interaction with moieties in the polar region was more pronounced with the models with complex lipid composition.
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Affiliation(s)
- Donia Essaid
- Lip(Sys)(2), Chimie Analytique Pharmaceutique, Univ. Paris-Sud, Université Paris-Saclay, F-92290 Châtenay-Malabry cedex, France
| | - Ali Tfayli
- Lip(Sys)(2), Chimie Analytique Pharmaceutique, Univ. Paris-Sud, Université Paris-Saclay, F-92290 Châtenay-Malabry cedex, France
| | - Philippe Maillard
- Department Chemistry, Modelling and Imaging for Biology (CMIB), Institut Curie, Research center, PSL Research University, Bât 110-112, Centre Universitaire, F-91405 Orsay cedex, France; CNRS, INSERM, UMR 9187-U 1196, Université Paris-Saclay, Univ. Paris-Sud, Bât 110-112, Centre Universitaire, F-91405 Orsay Cedex, France
| | - Christophe Sandt
- SMIS Beamline, Synchrotron SOLEIL, Orme des merisiers, BP48, 91192 Gif-sur-Yvette, France
| | - Véronique Rosilio
- Institut Galien Paris Sud, Univ Paris-Sud, CNRS, Université Paris-Saclay, F-92290 Châtenay-Malabry cedex, France
| | - Arlette Baillet-Guffroy
- Lip(Sys)(2), Chimie Analytique Pharmaceutique, Univ. Paris-Sud, Université Paris-Saclay, F-92290 Châtenay-Malabry cedex, France
| | - Athena Kasselouri
- Lip(Sys)(2), Chimie Analytique Pharmaceutique, Univ. Paris-Sud, Université Paris-Saclay, F-92290 Châtenay-Malabry cedex, France.
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32
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Motoyama M, Vénien A, Loison O, Sandt C, Watanabe G, Sicard J, Sasaki K, Astruc T. In situ characterization of acidic and thermal protein denaturation by infrared microspectroscopy. Food Chem 2018; 248:322-329. [DOI: 10.1016/j.foodchem.2017.11.031] [Citation(s) in RCA: 11] [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: 07/11/2017] [Revised: 11/08/2017] [Accepted: 11/08/2017] [Indexed: 01/13/2023]
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Doncel-Pérez E, Ellis G, Sandt C, Shuttleworth PS, Bastida A, Revuelta J, García-Junceda E, Fernández-Mayoralas A, Garrido L. Biochemical profiling of rat embryonic stem cells grown on electrospun polyester fibers using synchrotron infrared microspectroscopy. Anal Bioanal Chem 2018; 410:3649-3660. [PMID: 29671028 PMCID: PMC5956007 DOI: 10.1007/s00216-018-1049-z] [Citation(s) in RCA: 5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 03/02/2018] [Accepted: 03/28/2018] [Indexed: 01/10/2023]
Abstract
Therapeutic options for spinal cord injuries are severely limited; current treatments only offer symptomatic relief and rehabilitation focused on educating the individual on how to adapt to their new situation to make best possible use of their remaining function. Thus, new approaches are needed, and interest in the development of effective strategies to promote the repair of neural tracts in the central nervous system inspired us to prepare functional and highly anisotropic polymer scaffolds. In this work, an initial assessment of the behavior of rat neural progenitor cells (NPCs) seeded on poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) fiber scaffolds using synchrotron-based infrared microspectroscopy (SIRMS) is described. Combined with a modified touch imprint cytology sample preparation method, this application of SIRMS enabled the biochemical profiles of NPCs on the coated polymer fibers to be determined. The results showed that changes in the lipid and amide I–II spectral regions are modulated by the type and coating of the substrate used and the culture time. SIRMS studies can provide valuable insight into the early-stage response of NPCs to the morphology and surface chemistry of a biomaterial, and could therefore be a useful tool in the preparation and optimization of cellular scaffolds. Synchrotron IR microspectroscopy can provide insight into the response of neural progenitor cells to synthetic scaffolds ![]()
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Affiliation(s)
- Ernesto Doncel-Pérez
- Grupo de Química Neuro-Regenerativa, Hospital Nacional de Parapléjicos, Servicio de Salud de Castilla La Mancha (SESCAM), 45071, Toledo, Spain
| | - Gary Ellis
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - Christophe Sandt
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin BP 48, 91192, Gif-sur-Yvette, France
| | - Peter S Shuttleworth
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - Agatha Bastida
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - Julia Revuelta
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - Eduardo García-Junceda
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - Alfonso Fernández-Mayoralas
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - Leoncio Garrido
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.
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Henry L, Delsuc N, Laugel C, Lambert F, Sandt C, Hostachy S, Bernard AS, Bertrand HC, Grimaud L, Baillet-Guffroy A, Policar C. Labeling of Hyaluronic Acids with a Rhenium-tricarbonyl Tag and Percutaneous Penetration Studied by Multimodal Imaging. Bioconjug Chem 2018; 29:987-991. [PMID: 29360339 DOI: 10.1021/acs.bioconjchem.7b00825] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Hyaluronic acids were labeled with a rhenium-tricarbonyl used as single core multimodal probe for imaging and their penetration into human skin biopsies was studied using IR microscopy and fluorescence imaging (labeled SCoMPI). The penetration was shown to be dependent on the molecular weight of the molecule and limited to the upper layer of the skin.
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Affiliation(s)
- Lucas Henry
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Nicolas Delsuc
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Cécile Laugel
- Laboratory of Analytical Chemistry, Lip(Sys)2, (EA 7357), Faculty of Pharmacy, Paris-Sud , University of Paris-Saclay , 5 Rue Jean-Baptiste Clément , 92296 Chatenay-Malabry , France
| | - François Lambert
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Christophe Sandt
- SMIS beamline , Synchrotron SOLEIL Saint-Aubin , 91192 Gif-sur-Yvette Cedex , France
| | - Sarah Hostachy
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Anne-Sophie Bernard
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Hélène C Bertrand
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Laurence Grimaud
- PASTEUR, Département de chimie, École normale supérieure, PSL Research University, Sorbonne Universités, UPMC Univ. Paris 06, CNRS , 75005 Paris , France
| | - Arlette Baillet-Guffroy
- Laboratory of Analytical Chemistry, Lip(Sys)2, (EA 7357), Faculty of Pharmacy, Paris-Sud , University of Paris-Saclay , 5 Rue Jean-Baptiste Clément , 92296 Chatenay-Malabry , France
| | - Clotilde Policar
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
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Toplak M, Birarda G, Read S, Sandt C, Rosendahl SM, Vaccari L, Demšar J, Borondics F. Infrared Orange: Connecting Hyperspectral Data with Machine Learning. ACTA ACUST UNITED AC 2017. [DOI: 10.1080/08940886.2017.1338424] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- M. Toplak
- Faculty of Computer and Information Science, Ljubljana, Slovenia
| | - G. Birarda
- Elettra–Sincrotrone Trieste S.C.p.A., Trieste, Italy
| | - S. Read
- Canadian Light Source, Saskatoon, Canada
| | - C. Sandt
- SOLEIL Synchrotron, Gif-sur-Yvette, France
| | | | - L. Vaccari
- Elettra–Sincrotrone Trieste S.C.p.A., Trieste, Italy
| | - J. Demšar
- SOLEIL Synchrotron, Gif-sur-Yvette, France
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36
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André W, Sandt C, Nondier I, Djian P, Hoffner G. Inclusions of R6/2 Mice Are Not Amyloid and Differ Structurally from Those of Huntington Disease Brain. Anal Chem 2017; 89:5201-5209. [PMID: 28398721 DOI: 10.1021/acs.analchem.6b04199] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
R6/2 mice contain an N-terminal fragment of human huntingtin with an expanded polyQ and develop a neurological disease resembling Huntington disease. Although the brain of R6/2 mice contains numerous inclusions, there is very little neuronal death. In that respect, R6/2 mice differ from patients with Huntington disease whose striatum and cerebral cortex develop inclusions associated with extensive neuronal loss. We have previously demonstrated using synchrotron-based infrared microspectroscopy that the striatum and the cortex of patients with Huntington disease contained inclusions specifically enriched in amyloid β-sheets. We had concluded that the presence of an amyloid motif conferred toxicity to the inclusions. We demonstrate here by synchrotron based infrared microspectroscopy in transmission and attenuated total reflectance mode that the inclusions of R6/2 mice possess no detectable amyloid and are composed of proteins whose structure is not distinguishable from that of the surrounding soluble proteins. The difference in structure between the inclusions of patients affected by Huntington disease and those of R6/2 mice might explain why the former but not the latter cause neuronal death.
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Affiliation(s)
- William André
- Centre National de la Recherche Scientifique/Université Paris Descartes , UMR 8118, Laboratoire de Physiologie Cérébrale, 75006 Paris, France.,Synchrotron SOLEIL , 91192 Gif-sur-Yvette, France
| | | | - Isabelle Nondier
- Centre National de la Recherche Scientifique/Université Paris Descartes , UMR 8118, Laboratoire de Physiologie Cérébrale, 75006 Paris, France
| | - Philippe Djian
- Centre National de la Recherche Scientifique/Université Paris Descartes , UMR 8118, Laboratoire de Physiologie Cérébrale, 75006 Paris, France
| | - Guylaine Hoffner
- Centre National de la Recherche Scientifique/Université Paris Descartes , UMR 8118, Laboratoire de Physiologie Cérébrale, 75006 Paris, France
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37
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Nguyen TD, Guyot S, Pénicaud C, Passot S, Sandt C, Fonseca F, Saurel R, Husson F. Understanding the responses of Saccharomyces cerevisiae yeast strain during dehydration processes using synchrotron infrared spectroscopy. Analyst 2017; 142:3620-3628. [DOI: 10.1039/c7an00257b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
For the first time, synchrotron infrared spectroscopy was performed on yeast during dehydration processes in real time with simultaneously controlled relative humidity and temperature.
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Affiliation(s)
- T. D. Nguyen
- UMR PAM A 02.102
- AgroSup Dijon
- Université Bourgogne
- Franche Comté
- France
| | - S. Guyot
- UMR PAM A 02.102
- AgroSup Dijon
- Université Bourgogne
- Franche Comté
- France
| | - C. Pénicaud
- UMR GPMA
- AgroParisTech
- INRA
- Université Paris-Saclay
- Thiverval-Grignon
| | - S. Passot
- UMR GPMA
- AgroParisTech
- INRA
- Université Paris-Saclay
- Thiverval-Grignon
| | - C. Sandt
- SMIS beamline
- Synchrotron SOLEIL
- Gif sur Yvette
- France
| | - F. Fonseca
- UMR GPMA
- AgroParisTech
- INRA
- Université Paris-Saclay
- Thiverval-Grignon
| | - R. Saurel
- UMR PAM A 02.102
- AgroSup Dijon
- Université Bourgogne
- Franche Comté
- France
| | - F. Husson
- UMR PAM A 02.102
- AgroSup Dijon
- Université Bourgogne
- Franche Comté
- France
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Bazin D, Letavernier E, Jouanneau C, Ronco P, Sandt C, Dumas P, Matzen G, Véron E, Haymann JP, Traxer O, Conort P, Daudon M. New insights into the presence of sodium hydrogen urate monohydrate in Randall's plaque. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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39
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Kaščáková S, Kewish CM, Rouzière S, Schmitt F, Sobesky R, Poupon J, Sandt C, Francou B, Somogyi A, Samuel D, Jacquemin E, Dubart-Kupperschmitt A, Nguyen TH, Bazin D, Duclos-Vallée JC, Guettier C, Le Naour F. Rapid and reliable diagnosis of Wilson disease using X-ray fluorescence. J Pathol Clin Res 2016; 2:175-86. [PMID: 27499926 PMCID: PMC4958738 DOI: 10.1002/cjp2.48] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 04/07/2016] [Indexed: 12/11/2022]
Abstract
Wilson's disease (WD) is a rare autosomal recessive disease due to mutations of the gene encoding the copper-transporter ATP7B. The diagnosis is hampered by the variability of symptoms induced by copper accumulation, the inconstancy of the pathognomonic signs and the absence of a reliable diagnostic test. We investigated the diagnostic potential of X-ray fluorescence (XRF) that allows quantitative analysis of multiple elements. Studies were performed on animal models using Wistar rats (n = 10) and Long Evans Cinnamon (LEC) rats (n = 11), and on human samples including normal livers (n = 10), alcohol cirrhosis (n = 8), haemochromatosis (n = 10), cholestasis (n = 6) and WD (n = 22). XRF experiments were first performed using synchrotron radiation to address the elemental composition at the cellular level. High-resolution mapping of tissue sections allowed measurement of the intensity and the distribution of copper, iron and zinc while preserving the morphology. Investigations were further conducted using a laboratory X-ray source for irradiating whole pieces of tissue. The sensitivity of XRF was highlighted by the discrimination of LEC rats from wild type even under a regimen using copper deficient food. XRF on whole formalin-fixed paraffin embedded needle biopsies allowed profiling of the elements in a few minutes. The intensity of copper related to iron and zinc significantly discriminated WD from other genetic or chronic liver diseases with 97.6% specificity and 100% sensitivity. This study established a definite diagnosis of Wilson's disease based on XRF. This rapid and versatile method can be easily implemented in a clinical setting.
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Affiliation(s)
- Slávka Kaščáková
- INSERMUnité 1193, Villejuif, F-94800France; Univ Paris-SudUMR-S 1193, Villejuif, F-94800France; DHU HepatinovVillejuif, F-94800France
| | - Cameron M Kewish
- Ligne de lumière NANOSCOPIUM, Synchrotron SOLEIL Gif sur Yvette, F-91192 France
| | - Stéphan Rouzière
- Laboratoire de Physique des Solides UMR CNRS 8502, Univ Paris-Sud, Bâtiment 510 Orsay Cedex 91405 France
| | - Françoise Schmitt
- INSERM, Unité 1064, Centre de Recherche en Transplantation & Immunologie, ITUN, CHU Hôtel DieuNantesFrance; Univ d'AngersHIFIH, UPRES 3859AngersFrance
| | - Rodolphe Sobesky
- INSERMUnité 1193, Villejuif, F-94800France; Univ Paris-SudUMR-S 1193, Villejuif, F-94800France; DHU HepatinovVillejuif, F-94800France; AP-HP Hôpital Paul Brousse, Centre Hépato-BiliaireVillejuifF-94800France; Centre de Référence National de la Maladie de Wilson, AP-HPFrance
| | - Joël Poupon
- Centre de Référence National de la Maladie de Wilson, AP-HPFrance; AP-HP Hôpital Lariboisière, Laboratoire de toxicologie biologiqueParis Cedex 1075475France
| | - Christophe Sandt
- Ligne de lumière SMIS, Synchrotron SOLEIL Gif sur Yvette, F-91192 France
| | - Bruno Francou
- Service de Génétique Moléculaire Pharmacogénétique et Hormonologie Hôpital Bicêtre, Le Kremlin-Bicêtre Cedex F-94276 France
| | - Andrea Somogyi
- Ligne de lumière NANOSCOPIUM, Synchrotron SOLEIL Gif sur Yvette, F-91192 France
| | - Didier Samuel
- INSERMUnité 1193, Villejuif, F-94800France; Univ Paris-SudUMR-S 1193, Villejuif, F-94800France; DHU HepatinovVillejuif, F-94800France; AP-HP Hôpital Paul Brousse, Centre Hépato-BiliaireVillejuifF-94800France; Centre de Référence National de la Maladie de Wilson, AP-HPFrance
| | - Emmanuel Jacquemin
- DHU HepatinovVillejuif, F-94800France; Centre de Référence National de la Maladie de Wilson, AP-HPFrance; Service d'Hépatologie et de Transplantation Hépatique Pédiatriques, Hôpital Bicêtre, AP-HP, Université Paris SudLe Kremlin Bicêtre Cedex, F-94275France; Univ Paris-SudUMR-S 1174OrsayF-91400France
| | - Anne Dubart-Kupperschmitt
- INSERMUnité 1193, Villejuif, F-94800France; Univ Paris-SudUMR-S 1193, Villejuif, F-94800France; DHU HepatinovVillejuif, F-94800France
| | - Tuan Huy Nguyen
- INSERM, Unité 1064, Centre de Recherche en Transplantation & Immunologie, ITUN, CHU Hôtel Dieu Nantes France
| | - Dominique Bazin
- Univ Paris 6, Sorbonne Universités, UPMC, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP) Paris F-75005 France
| | - Jean-Charles Duclos-Vallée
- INSERMUnité 1193, Villejuif, F-94800France; Univ Paris-SudUMR-S 1193, Villejuif, F-94800France; DHU HepatinovVillejuif, F-94800France; AP-HP Hôpital Paul Brousse, Centre Hépato-BiliaireVillejuifF-94800France; Centre de Référence National de la Maladie de Wilson, AP-HPFrance
| | - Catherine Guettier
- INSERMUnité 1193, Villejuif, F-94800France; Univ Paris-SudUMR-S 1193, Villejuif, F-94800France; DHU HepatinovVillejuif, F-94800France; AP-HP Hôpital Paul Brousse, Service d'Anatomo-PathologieVillejuifF-94807France
| | - François Le Naour
- INSERMUnité 1193, Villejuif, F-94800France; Univ Paris-SudUMR-S 1193, Villejuif, F-94800France; DHU HepatinovVillejuif, F-94800France
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Clède S, Cowan N, Lambert F, Bertrand HC, Rubbiani R, Patra M, Hess J, Sandt C, Trcera N, Gasser G, Keiser J, Policar C. Bimodal X-ray and Infrared Imaging of an Organometallic Derivative of Praziquantel inSchistosoma mansoni. Chembiochem 2016; 17:1004-7. [DOI: 10.1002/cbic.201500688] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Indexed: 12/22/2022]
Affiliation(s)
- Sylvain Clède
- École Normale Supérieure; PSL Research University; Département de Chimie; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06; LBM; 4 place Jussieu 75005 Paris France
- Centre National de la Recherche Scientifique (CNRS); UMR 7203 LBM; 75005 Paris France
| | - Noemi Cowan
- Department of Medical Parasitology and Infection Biology; Swiss Tropical and Public Health Institute Basel, Switzerland; University of Basel; P. O. Box 4003 Basel Switzerland
| | - François Lambert
- École Normale Supérieure; PSL Research University; Département de Chimie; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06; LBM; 4 place Jussieu 75005 Paris France
- Centre National de la Recherche Scientifique (CNRS); UMR 7203 LBM; 75005 Paris France
| | - Hélène C. Bertrand
- École Normale Supérieure; PSL Research University; Département de Chimie; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06; LBM; 4 place Jussieu 75005 Paris France
- Centre National de la Recherche Scientifique (CNRS); UMR 7203 LBM; 75005 Paris France
| | - Riccardo Rubbiani
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Malay Patra
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Jeannine Hess
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Christophe Sandt
- Synchrotron SOLEIL; L'Orme des Merisiers, Saint Aubin B. P. 48 91192 Gif-sur-Yvette France
| | - Nicolas Trcera
- Synchrotron SOLEIL; L'Orme des Merisiers, Saint Aubin B. P. 48 91192 Gif-sur-Yvette France
| | - Gilles Gasser
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Jennifer Keiser
- Department of Medical Parasitology and Infection Biology; Swiss Tropical and Public Health Institute Basel, Switzerland; University of Basel; P. O. Box 4003 Basel Switzerland
| | - Clotilde Policar
- École Normale Supérieure; PSL Research University; Département de Chimie; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06; LBM; 4 place Jussieu 75005 Paris France
- Centre National de la Recherche Scientifique (CNRS); UMR 7203 LBM; 75005 Paris France
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41
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Peng C, Kaščáková S, Chiappini F, Olaya N, Sandt C, Yousef I, Samuel D, Dumas P, Guettier C, Le Naour F. Discrimination of cirrhotic nodules, dysplastic lesions and hepatocellular carcinoma by their vibrational signature. J Transl Med 2016; 14:9. [PMID: 26754490 PMCID: PMC4710034 DOI: 10.1186/s12967-016-0763-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 01/02/2016] [Indexed: 01/14/2023] Open
Abstract
Background Hepatocarcinogenesis is a multistep process characterized in patients with chronic liver diseases by a spectrum of hepatic nodules that mark the progression from regenerative nodules to dysplastic lesions followed by hepatocellular carcinoma (HCC). The differential diagnosis between precancerous dysplastic nodules and early HCC still represents a challenge for both radiologists and pathologists. We addressed the potential of Fourier transform-infrared (FTIR) microspectroscopy for grading cirrhotic nodules on frozen tissue sections. Methods The study was focused on 39 surgical specimens including normal livers (n = 11), dysplastic nodules (n = 6), early HCC (n = 1), progressed HCC on alcoholic cirrhosis (n = 10) or hepatitis C virus cirrhosis (n = 11). The use of the bright infrared source emitted by the synchrotron radiation allowed investigating the biochemical composition at the cellular level. Chemical mapping on whole tissue sections was further performed using a FTIR microscope equipped with a laboratory-based infrared source. The variance was addressed by principal component analysis. Results Profound alterations of the biochemical composition of the pathological liver were demonstrated by FTIR microspectroscopy. Indeed, dramatic changes were observed in lipids, proteins and sugars highlighting the metabolic reprogramming in carcinogenesis. Quantifiable spectral markers were characterized by calculating ratios of areas under specific bands along the infrared spectrum. These markers allowed the discrimination of cirrhotic nodules, dysplastic lesions and HCC. Finally, the spectral markers can be measured using a laboratory FTIR microscope that may be easily implemented at the hospital. Conclusion Metabolic reprogramming in liver carcinogenesis can constitute a signature easily detectable using FTIR microspectroscopy for the diagnosis of precancerous and cancerous lesions. Electronic supplementary material The online version of this article (doi:10.1186/s12967-016-0763-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Chengyuan Peng
- Inserm, Unité 1193, 94800, Villejuif, France. .,Univ Paris-Sud, UMR-S1193, 94800, Villejuif, France.
| | - Slávka Kaščáková
- Inserm, Unité 1193, 94800, Villejuif, France. .,Univ Paris-Sud, UMR-S1193, 94800, Villejuif, France.
| | - Franck Chiappini
- Inserm, Unité 1193, 94800, Villejuif, France. .,Univ Paris-Sud, UMR-S1193, 94800, Villejuif, France.
| | - Natalia Olaya
- Instituto Nacional de Cancerologia, Bogota, Colombia.
| | | | | | - Didier Samuel
- Inserm, Unité 1193, 94800, Villejuif, France. .,Univ Paris-Sud, UMR-S1193, 94800, Villejuif, France. .,Centre Hépato-Biliaire, AP-HP Hôpital Paul Brousse, 94800, Villejuif, France.
| | - Paul Dumas
- SOLEIL Synchrotron, 91192, Gif sur Yvette, France.
| | - Catherine Guettier
- Inserm, Unité 1193, 94800, Villejuif, France. .,Univ Paris-Sud, UMR-S1193, 94800, Villejuif, France. .,Service d'Anatomopathologie, AP-HP Hôpital Bicêtre, 94275, Le Kremlin-Bicêtre, France.
| | - François Le Naour
- Inserm, Unité 1193, 94800, Villejuif, France. .,Univ Paris-Sud, UMR-S1193, 94800, Villejuif, France.
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42
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Fernández E, Hostachy S, Sandt C, Rodríguez G, Bertrand HC, Clède S, Cócera M, Maza ADL, Lambert F, Policar C, López O. Monitoring bicosomes containing antioxidants in normal and irradiated skin. RSC Adv 2016. [DOI: 10.1039/c6ra11170j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Monitoring penetration of bicosomes containing antioxidants into normal and irradiated skin by FTIR.
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Affiliation(s)
| | - Sarah Hostachy
- École Normale Supérieure – PSL Research University
- Département de Chimie Sorbornne Universités – UPMC UNIV Paris 06
- CNRS UMR 7203 LBM
- 75005 Paris
- France
| | | | | | - Helene C. Bertrand
- École Normale Supérieure – PSL Research University
- Département de Chimie Sorbornne Universités – UPMC UNIV Paris 06
- CNRS UMR 7203 LBM
- 75005 Paris
- France
| | - Sylvain Clède
- École Normale Supérieure – PSL Research University
- Département de Chimie Sorbornne Universités – UPMC UNIV Paris 06
- CNRS UMR 7203 LBM
- 75005 Paris
- France
| | | | - Alfonso de la Maza
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC)
- 08034 Barcelona
- Spain
| | - François Lambert
- École Normale Supérieure – PSL Research University
- Département de Chimie Sorbornne Universités – UPMC UNIV Paris 06
- CNRS UMR 7203 LBM
- 75005 Paris
- France
| | - Clotilde Policar
- École Normale Supérieure – PSL Research University
- Département de Chimie Sorbornne Universités – UPMC UNIV Paris 06
- CNRS UMR 7203 LBM
- 75005 Paris
- France
| | - Olga López
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC)
- 08034 Barcelona
- Spain
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43
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Hostachy S, Swiecicki JM, Sandt C, Delsuc N, Policar C. Photophysical properties of single core multimodal probe for imaging (SCoMPI) in a membrane model and in cells. Dalton Trans 2016; 45:2791-5. [DOI: 10.1039/c5dt03819g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An unexpected strong luminescence enhancement of a bimodal ReCO probe grafted onto a CPP accurately characterized in a lipid environment.
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Affiliation(s)
- S. Hostachy
- Ecole Normale Supérieure-PSL Research University
- Département de Chimie
- Sorbonne Universités – UPMC Univ Paris 06
- UMR 7203 CNRS-ENS-UPMC LBM
- 75005 Paris
| | - J.-M. Swiecicki
- Ecole Normale Supérieure-PSL Research University
- Département de Chimie
- Sorbonne Universités – UPMC Univ Paris 06
- UMR 7203 CNRS-ENS-UPMC LBM
- 75005 Paris
| | - C. Sandt
- Synchrotron SOLEIL Saint-Aubin
- Gif-sur-Yvette Cedex
- France
| | - N. Delsuc
- Ecole Normale Supérieure-PSL Research University
- Département de Chimie
- Sorbonne Universités – UPMC Univ Paris 06
- UMR 7203 CNRS-ENS-UPMC LBM
- 75005 Paris
| | - C. Policar
- Ecole Normale Supérieure-PSL Research University
- Département de Chimie
- Sorbonne Universités – UPMC Univ Paris 06
- UMR 7203 CNRS-ENS-UPMC LBM
- 75005 Paris
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44
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Sandt C, Nadaradjane C, Richards R, Dumas P, Sée V. Use of infrared microspectroscopy to elucidate a specific chemical signature associated with hypoxia levels found in glioblastoma. Analyst 2016; 141:870-83. [DOI: 10.1039/c5an02112j] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Detection of the chemical signature associated with hypoxia in single glioblastoma cells by synchrotron infrared microspectroscopy.
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Affiliation(s)
- Christophe Sandt
- Synchrotron SOLEIL
- L'Orme des Merisiers
- 91192 Gif sur Yvette
- France
| | - Céline Nadaradjane
- Synchrotron SOLEIL
- L'Orme des Merisiers
- 91192 Gif sur Yvette
- France
- Department of Biochemistry
| | - Rosalie Richards
- Department of Biochemistry
- Institute of Integrative Biology
- University of Liverpool
- Liverpool
- UK
| | - Paul Dumas
- Synchrotron SOLEIL
- L'Orme des Merisiers
- 91192 Gif sur Yvette
- France
| | - Violaine Sée
- Department of Biochemistry
- Institute of Integrative Biology
- University of Liverpool
- Liverpool
- UK
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45
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Zimmermann B, Bağcıoğlu M, Sandt C, Kohler A. Vibrational microspectroscopy enables chemical characterization of single pollen grains as well as comparative analysis of plant species based on pollen ultrastructure. Planta 2015; 242:1237-50. [PMID: 26289829 DOI: 10.1007/s00425-015-2380-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 08/07/2015] [Indexed: 05/27/2023]
Abstract
Chemical imaging of pollen by vibrational microspectroscopy enables characterization of pollen ultrastructure, in particular phenylpropanoid components in grain wall for comparative study of extant and extinct plant species. A detailed characterization of conifer (Pinales) pollen by vibrational microspectroscopy is presented. The main problems that arise during vibrational measurements were scatter and saturation issues in Fourier transform infrared (FTIR), and fluorescence and penetration depth issues in Raman. Single pollen grains larger than approx. 15 µm can be measured by FTIR microspectroscopy using conventional light sources, while smaller grains may be measured by employing synchrotron light sources. Pollen grains that were larger than 50 µm were too thick for FTIR imaging since the grain constituents absorbed almost all infrared light. Chemical images of pollen were obtained on sectioned samples, unveiling the distribution and concentration of proteins, carbohydrates, sporopollenins and lipids within pollen substructures. The comparative analysis of pollen species revealed that, compared with other Pinales pollens, Cedrus atlantica has a higher relative amount of lipid nutrients, as well as different chemical composition of grain wall sporopollenin. The pre-processing and data analysis, namely extended multiplicative signal correction and principal component analysis, offer simple estimate of imaging spectral data and indirect estimation of physical properties of pollen. The vibrational microspectroscopy study demonstrates that detailed chemical characterization of pollen can be obtained by measurement of an individual grain and pollen ultrastructure. Measurement of phenylpropanoid components in pollen grain wall could be used, not only for the reconstruction of past environments, but for assessment of diversity of plant species as well. Therefore, analysis of extant and extinct pollen species by vibrational spectroscopies is suggested as a valuable tool in biology, ecology and palaeosciences.
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Affiliation(s)
- Boris Zimmermann
- Department of Mathematical Sciences and Technology, Faculty of Environmental Science and Technology, Norwegian University of Life Sciences, Drøbakveien 31, 1430, Ås, Norway.
| | - Murat Bağcıoğlu
- Department of Mathematical Sciences and Technology, Faculty of Environmental Science and Technology, Norwegian University of Life Sciences, Drøbakveien 31, 1430, Ås, Norway.
| | - Christophe Sandt
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192, Gif-sur-Yvette, France.
| | - Achim Kohler
- Department of Mathematical Sciences and Technology, Faculty of Environmental Science and Technology, Norwegian University of Life Sciences, Drøbakveien 31, 1430, Ås, Norway.
- Nofima AS, Osloveien 1, 1430, Ås, Norway.
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Peng C, Chiappini F, Kaščáková S, Danulot M, Sandt C, Samuel D, Dumas P, Guettier C, Le Naour F. Vibrational signatures to discriminate liver steatosis grades. Analyst 2015; 140:1107-18. [PMID: 25581590 DOI: 10.1039/c4an01679c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a frequent lesion associated with obesity, diabetes and the metabolic syndrome. The hallmark feature of fatty liver disease is steatosis, which is the intra-cellular accumulation of lipids resulting in the formation of vesicles in hepatocytes. Steatosis is a precursor of steatohepatitis, a condition that may progress to hepatic fibrosis, cirrhosis and primary liver cancer. We addressed the potential of Fourier transform-infrared (FTIR) microspectroscopy for grading steatosis on frozen tissue sections. The use of the bright infrared source emitted by synchrotron radiation (SR) allowed the investigation of the biochemical composition at the cellular level. The variance in the huge number of spectra acquired was addressed by principal component analysis (PCA). The study demonstrated that the progression of steatosis corresponds not only to the accumulation of lipids but also to dramatic changes in the qualitative composition of the tissue. Indeed, a lower grade of steatosis showed a decrease in glycogen content and a concomitant increase in lipids in comparison with normal liver. Intermediate steatosis exhibited an increase in glycogen and major changes in lipids, with a significant contribution of esterified fatty acids with elongated carbon chains and unsaturated lipids, and these features were more pronounced in a high grade of steatosis. Furthermore, the approach allows a systematic discrimination of morphological features, leading to a separate investigation of steatotic vesicles and the non-steatotic counterpart of the tissue. This highlighted the fact that dramatic biochemical changes occur in the non-steatotic part of the tissue also despite its normal histological aspect, suggesting that the whole tissue reflects the grade of steatosis.
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47
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Chwiej J, Skoczen A, Matusiak K, Janeczko K, Patulska A, Sandt C, Simon R, Ciarach M, Setkowicz Z. The influence of the ketogenic diet on the elemental and biochemical compositions of the hippocampal formation. Epilepsy Behav 2015; 49:40-6. [PMID: 25986320 DOI: 10.1016/j.yebeh.2015.04.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 04/19/2015] [Indexed: 10/23/2022]
Abstract
A growing body of evidence demonstrates that dietary therapies, mainly the ketogenic diet, may be highly effective in the reduction of epileptic seizures. All of them share the common characteristic of restricting carbohydrate intake to shift the predominant caloric source of the diet to fat. Catabolism of fats results in the production of ketone bodies which become alternate energy substrates to glucose. Although many mechanisms by which ketone bodies yield its anticonvulsant effect are proposed, the relationships between the brain metabolism of the ketone bodies and their neuroprotective and antiepileptogenic action still remain to be discerned. In the study, X-ray fluorescence microscopy and FTIR microspectroscopy were used to follow ketogenic diet-induced changes in the elemental and biochemical compositions of rat hippocampal formation tissue. The use of synchrotron sources of X-rays and infrared allowed us to examine changes in the accumulation and distribution of selected elements (P, S, K, Ca, Fe, Cu, Zn, and Se) and biomolecules (proteins, lipids, ketone bodies, etc.) with the micrometer spatial resolution. The comparison of rats fed with the ketogenic diet and rats fed with the standard laboratory diet showed changes in the hippocampal accumulation of P, K, Ca, and Zn. The relations obtained for Ca (increased level in CA3, DG, and its internal area) and Zn (decreased areal density in CA3 and DG) were analogous to those that we previously observed for rats in the acute phase of pilocarpine-induced seizures. Biochemical analysis of tissues taken from ketogenic diet-fed rats demonstrated increased intensity of absorption band occurring at 1740 cm(-1), which was probably the result of elevated accumulation of ketone bodies. Moreover, higher absolute and relative (3012 cm(-1)/2924 cm(-1), 3012 cm(-1)/lipid massif, and 3012 cm(-1)/amide I) intensity of the 3012-cm(-1) band resulting from increased unsaturated fatty acids content was found after the treatment with the high-fat diet. This article is part of a Special Issue entitled "Status Epilepticus".
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Affiliation(s)
- Joanna Chwiej
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland.
| | - Agnieszka Skoczen
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland
| | - Katarzyna Matusiak
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland
| | - Krzysztof Janeczko
- Jagiellonian University, Institute of Zoology, Department of Neuroanatomy, Krakow, Poland
| | - Agnieszka Patulska
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland
| | | | - Rolf Simon
- Institut fur Synchrotronstrahlung, Research Centre Karlsruhe, Karlsruhe, Germany
| | - Malgorzata Ciarach
- Jagiellonian University, Institute of Zoology, Department of Neuroanatomy, Krakow, Poland
| | - Zuzanna Setkowicz
- Jagiellonian University, Institute of Zoology, Department of Neuroanatomy, Krakow, Poland
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48
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Bellisola G, Bolomini Vittori M, Cinque G, Dumas P, Fiorini Z, Laudanna C, Mirenda M, Sandt C, Silvestri G, Tomasello L, Vezzalini M, Wehbe K, Sorio C. Unsupervised explorative data analysis of normal human leukocytes and BCR/ABL positive leukemic cells mid-infrared spectra. Analyst 2015; 140:4407-22. [PMID: 25988195 DOI: 10.1039/c5an00148j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
We proved the ability of Fourier Transform Infrared microspectroscopy (microFTIR) complemented by Principal Component Analysis (PCA) to detect protein phosphorylation/de-phosphorylation in mammalian cells. We analyzed by microFTIR human polymorphonuclear neutrophil (PMNs) leukocytes, mouse-derived parental Ba/F3 cells (Ba/F3#PAR), Ba/F3 cells transfected with p210(BCR/ABL) (Ba/F3#WT) and expressing high levels of protein tyrosine kinase (PTK), and human-derived BCR/ABL positive K562 leukemic cell sub-clones engineered to differently express receptor-type tyrosine-protein phosphatase gamma (PTPRG). Synchrotron radiation (SR) and conventional (globar) IR sources were used to perform microFTIR respectively, on single cells and over several cells within the same sample. Ex vivo time-course experiments were run, inducing maximal protein phosphorylation in PMNs by 100 nM N-formylated tripeptide fMLP. Within the specific IR fingerprint 1800-850 cm(-1) frequency domain, PCA identified two regions with maximal signal variance. These were used to model and test the robustness of PCA in representing the dynamics of protein phosphorylation/de-phosphorylation processes. An IR signal ratio marker reflecting the homeostatic control by protein kinases and phosphatases was identified in normal leukocytes. The models identified by microFTIR and PCA in normal leukocytes also distinguished BCR/ABL positive Ba/F3#WT from BCR/ABL negative Ba/F3#PAR cells as well as K562 cells exposed to functionally active protein tyrosine phosphatase recombinant protein ICD-Tat transduced in cells by HIV-1 Tat technology or cells treated with the PTK inhibitor imatinib mesylate (IMA) from cells exposed to phosphatase inactive (D1028A)ICD-Tat recombinant protein and untreated control cells, respectively. The IR signal marker correctly reflected the degrees of protein phosphorylation associated with abnormal PTK activity in BCR/ABL positive leukemic cells and in general was inversely related to the expression/activity of PTPRG in leukemic sub-clones. In conclusion, we have described a new, reliable and simple spectroscopic method to study the ex vivo protein phosphorylation/de-phosphorylation balance in cell models: it is suitable for biomedical and pharmacological research labs but it also needs further optimization and its evaluation on large cohorts of patients to be proposed in the clinical setting of leukemia.
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Affiliation(s)
- G Bellisola
- Azienda Ospedaliera Universitaria Intergrata di Verona, Department of Pathology and Diagnostics - Unit of Immunology, Policinico G. Rossi, P.le L.A. Scuro 10, I-37134 Verona, Italy.
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49
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Fernández E, Rodríguez G, Hostachy S, Clède S, Cócera M, Sandt C, Lambert F, de la Maza A, Policar C, López O. A rhenium tris-carbonyl derivative as a model molecule for incorporation into phospholipid assemblies for skin applications. Colloids Surf B Biointerfaces 2015; 131:102-7. [PMID: 25969419 DOI: 10.1016/j.colsurfb.2015.04.045] [Citation(s) in RCA: 13] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 04/07/2015] [Accepted: 04/20/2015] [Indexed: 11/25/2022]
Abstract
A rhenium tris-carbonyl derivative (fac-[Re(CO)3Cl(2-(1-dodecyl-1H-1,2,3,triazol-4-yl)-pyridine)]) was incorporated into phospholipid assemblies, called bicosomes, and the penetration of this molecule into skin was monitored using Fourier-transform infrared microspectroscopy (FTIR). To evaluate the capacity of bicosomes to promote the penetration of this derivative, the skin penetration of the Re(CO)3 derivative dissolved in dimethyl sulfoxide (DMSO), a typical enhancer, was also studied. Dynamic light scattering results (DLS) showed an increase in the size of the bicosomes with the incorporation of the Re(CO)3 derivative, and the FTIR microspectroscopy showed that the Re(CO)3 derivative incorporated in bicosomes penetrated deeper into the skin than when dissolved in DMSO. When this molecule was applied on the skin using the bicosomes, 60% of the Re(CO)3 derivative was retained in the stratum corneum (SC) and 40% reached the epidermis (Epi). Otherwise, the application of this molecule via DMSO resulted in 95% of the Re(CO)3 derivative being in the SC and only 5% reaching the Epi. Using a Re(CO)3 derivative with a dodecyl-chain as a model molecule, it was possible to determine the distribution of molecules with similar physicochemical characteristics in the skin using bicosomes. This fact makes these nanostructures promising vehicles for the application of lipophilic molecules inside the skin.
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Affiliation(s)
- Estibalitz Fernández
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain.
| | | | - Sarah Hostachy
- Ecole Normale Supérieure, Rue Lhomond, 75005 Paris, France
| | - Sylvain Clède
- Ecole Normale Supérieure, Rue Lhomond, 75005 Paris, France
| | | | - Christophe Sandt
- Synchrotron SOLEIL, SMIS Beamline, L'Orme des Merisiers, 91190 Saint-Aubin, France
| | | | - Alfonso de la Maza
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | | | - Olga López
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
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50
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Clède S, Delsuc N, Laugel C, Lambert F, Sandt C, Baillet-Guffroy A, Policar C. An easy-to-detect nona-arginine peptide for epidermal targeting. Chem Commun (Camb) 2015; 51:2687-9. [DOI: 10.1039/c4cc08737b] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nona-arginine peptide conjugated with a Re-tricarbonyl IR and fluorescent probe (SCoMPI) accumulates at the epidermis without reaching the dermis.
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Affiliation(s)
- Sylvain Clède
- Ecole Normale Supérieure-PSL Research University
- Département de Chimie
- Sorbonne Universités – UPMC Univ Paris 06
- UMR 7203 CNRS-ENS-UPMC LBM
- 75005 Paris
| | - Nicolas Delsuc
- Ecole Normale Supérieure-PSL Research University
- Département de Chimie
- Sorbonne Universités – UPMC Univ Paris 06
- UMR 7203 CNRS-ENS-UPMC LBM
- 75005 Paris
| | - Cécile Laugel
- Laboratory of Analytical Chemistry
- Analytical Chemistry Group of Paris-Sud (GCAPS-EA 4041)
- Faculty of Pharmacy
- University Paris-Sud
- 92296 Chatenay-Malabry
| | - François Lambert
- Ecole Normale Supérieure-PSL Research University
- Département de Chimie
- Sorbonne Universités – UPMC Univ Paris 06
- UMR 7203 CNRS-ENS-UPMC LBM
- 75005 Paris
| | - Christophe Sandt
- Smis beamline
- Synchrotron SOLEIL Saint-Aubin
- Gif-sur-Yvette Cedex
- France
| | - Arlette Baillet-Guffroy
- Laboratory of Analytical Chemistry
- Analytical Chemistry Group of Paris-Sud (GCAPS-EA 4041)
- Faculty of Pharmacy
- University Paris-Sud
- 92296 Chatenay-Malabry
| | - Clotilde Policar
- Ecole Normale Supérieure-PSL Research University
- Département de Chimie
- Sorbonne Universités – UPMC Univ Paris 06
- UMR 7203 CNRS-ENS-UPMC LBM
- 75005 Paris
| |
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