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Christophe S, Lucien B, Thomas B, Nawel B, Sébastien T, Pauline F, Ferenc B. Spectral histology of hair and hair follicle using infrared microspectroscopy. Int J Cosmet Sci 2024. [PMID: 39044663 DOI: 10.1111/ics.12980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/19/2024] [Accepted: 05/04/2024] [Indexed: 07/25/2024]
Abstract
OBJECTIVE Today, there is only limited knowledge of the spatial organization of hair chemistry. Infrared microspectroscopy is a well-established tool to provide such information and has significantly contributed to this field. In this study, we present new results combining multiple infrared microspectroscopy methods at different length scales to create a better chemical histology of human hair, including the hair follicle, hair shaft, hair medulla and hair cuticle. METHODS We used hyperspectral IR imaging & spectroscopy (HIRIS) and synchrotron-radiation FTIR microspectroscopy (SR-μFTIR) to measure transversal hair sections and SR-μFTIR to obtain high-resolution maps of longitudinal sections from the hair shaft and from the hair follicle. We used optical photothermal IR microspectroscopy (OPTIR) to analyse the cuticle surface of intact hairs. RESULTS By mapping longitudinal sections of the human hair follicle with confocal SR-μFTIR, we report the first demonstration of glycogen presence in the outer root sheath of the hair follicle by spectroscopy, and its quantification at the micron scale. Spectral maps, combined with machine learning-based analysis, enabled us to differentiate the various layers of the hair follicle and provided insights into the chemical changes that occur during hair formation in the follicle. Using HIRIS and SR-μFTIR to analyse the hair medulla in transversal sections of human hairs, we report here, for the first time by vibrational spectroscopy methods, the detection of unsaturated lipids at very low concentrations in the medulla. By analysing longitudinal sections of the hair shaft with SR-μFTIR, we found that calcium carboxylates are present in large regions of the hair cuticle, and not just in small focal areas as previously thought. We then use OPTIR to analyse the hair cuticle of intact hairs at submicron resolution without sectioning and report the distribution of calcium carboxylates at the surface of intact hair for the first time. CONCLUSION These new findings illustrate the potential of infrared microspectroscopy for imaging the chemical composition of human hair and may have implications for biomedical research or cosmetology.
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Affiliation(s)
- Sandt Christophe
- SMIS Beamline, Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin, France
| | | | | | | | | | - Fazzino Pauline
- SMIS Beamline, Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin, France
| | - Borondics Ferenc
- SMIS Beamline, Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin, France
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2
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Hsieh PH, Phal Y, Prasanth KV, Bhargava R. Cell Phase Identification in a Three-Dimensional Engineered Tumor Model by Infrared Spectroscopic Imaging. Anal Chem 2023; 95:3349-3357. [PMID: 36574385 PMCID: PMC10214899 DOI: 10.1021/acs.analchem.2c04554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cell cycle progression plays a vital role in regulating proliferation, metabolism, and apoptosis. Three-dimensional (3D) cell cultures have emerged as an important class of in vitro disease models, and incorporating the variation occurring from cell cycle progression in these systems is critical. Here, we report the use of Fourier transform infrared (FT-IR) spectroscopic imaging to identify subtle biochemical changes within cells, indicative of the G1/S and G2/M phases of the cell cycle. Following previous studies, we first synchronized samples from two-dimensional (2D) cell cultures, confirmed their states by flow cytometry and DNA quantification, and recorded spectra. We determined two critical wavenumbers (1059 and 1219 cm-1) as spectral indicators of the cell cycle for a set of isogenic breast cancer cell lines (MCF10AT series). These two simple spectral markers were then applied to distinguish cell cycle stages in a 3D cell culture model using four cell lines that represent the main stages of cancer progression from normal cells to metastatic disease. Temporal dependence of spectral biomarkers during acini maturation validated the hypothesis that the cells are more proliferative in the early stages of acini development; later stages of the culture showed stability in the overall composition but unique spatial differences in cells in the two phases. Altogether, this study presents a computational and quantitative approach for cell phase analysis in tissue-like 3D structures without any biomarker staining and provides a means to characterize the impact of the cell cycle on 3D biological systems and disease diagnostic studies using IR imaging.
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Affiliation(s)
- Pei-Hsuan Hsieh
- Department of Bioengineering and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Yamuna Phal
- Department of Electrical and Computer Engineering and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Kannanganattu V Prasanth
- Department of Cell and Developmental Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Rohit Bhargava
- Departments of Bioengineering, Electrical and Computer Engineering, Mechanical Science and Engineering, Chemical and Biomolecular Engineering, and Chemistry, Beckman Institute for Advanced Science and Technology, Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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3
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Surowka AD, Birarda G, Szczerbowska-Boruchowska M, Cestelli-Guidi M, Ziomber-Lisiak A, Vaccari L. Model-based correction algorithm for Fourier Transform infrared microscopy measurements of complex tissue-substrate systems. Anal Chim Acta 2020; 1103:143-155. [PMID: 32081179 DOI: 10.1016/j.aca.2019.12.070] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 12/21/2019] [Accepted: 12/26/2019] [Indexed: 01/10/2023]
Abstract
Model-based algorithms have recently attracted much attention for data pre-processing in tissue mapping and imaging by Fourier transform infrared micro-spectroscopy (FTIR). Their versatility, robustness and computational performance enabled the improvement of spectral quality by mitigating the impact of scattering and fringing in FTIR spectra of chemically homogeneous biological systems. However, to date, no comprehensive algorithm has been optimized and automated for large-area FTIR imaging of histologically complex tissue samples. Herein, for the first time, we propose a unique, integrated and fully-automated Multiple Linear Regression Multi-Reference (MLR-MR) method for correcting linear baseline effects due to diffuse scattering, for compensating substrate thickness inhomogeneity and accounting for sample chemical heterogeneity in FTIR images. In particular, the algorithm uses multiple-reference spectra for histologically heterogeneous biological samples. The performance of the procedure was demonstrated for FTIR imaging of chemically complex rat brain frontal cortex tissue samples, mounted onto Ultralene® films. The proposed MLR-MR correction algorithm allows the efficient retrieval of "pure" absorbance spectra and greatly improves the histological fidelity of FTIR imaging data, as compared with the one-reference approach. In addition, the MLR-MR algorithm here presented opens up the possibility for extracting information on substrate thickness variability, thus enabling the indirect evaluation of its topography. As a whole, the MLR-MR procedure can be easily extended to more complex systems for which Mie scattering effects must also be eliminated.
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Affiliation(s)
- Artur Dawid Surowka
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163.5, 34149, Basovizza, Trieste, Italy; AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, al. Mickiewicza 30, 30-059, Kraków, Poland.
| | - Giovanni Birarda
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163.5, 34149, Basovizza, Trieste, Italy
| | | | | | - Agata Ziomber-Lisiak
- Chair of Pathophysiology, Faculty of Medicine, Jagiellonian University, ul. Czysta 18, 31-121, Kraków, Poland
| | - Lisa Vaccari
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163.5, 34149, Basovizza, Trieste, Italy
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4
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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. APPLIED SPECTROSCOPY 2020; 74:63-71. [PMID: 31617373 DOI: 10.1177/0003702819877260] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [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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5
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Grenci G, Bertocchi C, Ravasio A. Integrating Microfabrication into Biological Investigations: the Benefits of Interdisciplinarity. MICROMACHINES 2019; 10:E252. [PMID: 30995747 PMCID: PMC6523848 DOI: 10.3390/mi10040252] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/08/2019] [Accepted: 04/13/2019] [Indexed: 12/14/2022]
Abstract
The advent of micro and nanotechnologies, such as microfabrication, have impacted scientific research and contributed to meaningful real-world applications, to a degree seen during historic technological revolutions. Some key areas benefitting from the invention and advancement of microfabrication platforms are those of biological and biomedical sciences. Modern therapeutic approaches, involving point-of-care, precision or personalized medicine, are transitioning from the experimental phase to becoming the standard of care. At the same time, biological research benefits from the contribution of microfluidics at every level from single cell to tissue engineering and organoids studies. The aim of this commentary is to describe, through proven examples, the interdisciplinary process used to develop novel biological technologies and to emphasize the role of technical knowledge in empowering researchers who are specialized in a niche area to look beyond and innovate.
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Affiliation(s)
- Gianluca Grenci
- Mechanobiology Institute (MBI), National University of Singapore, Singapore 117411, Singapore.
- Biomedical Engineering Department, National University of Singapore, Singapore 117583, Singapore.
| | - Cristina Bertocchi
- Department of Physiology, School of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8330025, Chile.
| | - Andrea Ravasio
- Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.
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Loutherback K, Birarda G, Chen L, Holman HYN. Microfluidic approaches to synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectral microscopy of living biosystems. Protein Pept Lett 2016; 23:273-82. [PMID: 26732243 PMCID: PMC4997923 DOI: 10.2174/0929866523666160106154035] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 10/30/2015] [Accepted: 01/05/2016] [Indexed: 02/07/2023]
Abstract
A long-standing desire in biological and biomedical sciences is to be able to probe cellular chemistry as biological processes are happening inside living cells. Synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectral microscopy is a label-free and nondestructive analytical technique that can provide spatiotemporal distributions and relative abundances of biomolecules of a specimen by their characteristic vibrational modes. Despite great progress in recent years, SR-FTIR imaging of living biological systems remains challenging because of the demanding requirements on environmental control and strong infrared absorption of water. To meet this challenge, microfluidic devices have emerged as a method to control the water thickness while providing a hospitable environment to measure cellular processes and responses over many hours or days. This paper will provide an overview of microfluidic device development for SR-FTIR imaging of living biological systems, provide contrast between the various techniques including closed and open-channel designs, and discuss future directions of development within this area. Even as the fundamental science and technological demonstrations develop, other ongoing issues must be addressed; for example, choosing applications whose experimental requirements closely match device capabilities, and developing strategies to efficiently complete the cycle of development. These will require imagination, ingenuity and collaboration.
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Affiliation(s)
| | | | | | - Hoi-Ying N Holman
- Berkeley Synchrotron Infrared Structural Biology Program, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
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7
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Wood BR. The importance of hydration and DNA conformation in interpreting infrared spectra of cells and tissues. Chem Soc Rev 2016; 45:1980-98. [PMID: 26403652 DOI: 10.1039/c5cs00511f] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Since Watson and Crick's historical papers on the structure and function of DNA based on Rosalind Franklin's and Maurice Wilkin's X-ray diffraction patterns tremendous scientific curiosity has been aroused by the unique and dynamic structure of the molecule of life. A-DNA and B-DNA represent different conformations of the DNA molecule, which is stabilised by hydrogen interactions between base pairs, stacking interactions between neighboring bases and long-range intra- and inter-backbone forces. This review highlights the contribution Fourier transform infrared (FTIR) spectroscopy has made to the understanding of DNA conformation in relation to hydration and its potential role in clinical diagnostics. The review will first begin by elucidating the main forms of DNA conformation found in nature and the general structures of the A, B and Z forms. This is followed by a detailed critique on infrared spectroscopy applied to DNA conformation highlighting pivotal studies on isolated DNA, polynucleotides, nucleoprotein and nucleohistone complexes. A discussion on the potential of diagnosing cancer using FTIR spectroscopy based on the detection of DNA bands in cells and tissues will ensue, highlighting the recent studies investigating the conformation of DNA in hydrated and dehydrated cells. The method of hydration as a way to facilitate DNA conformational band assignment will be discussed and the conformational change to the A-form upon dehydration will be used to explain the reason for the apparent lack of FTIR DNA signals observed in fixed or air-dried cells and tissues. The advantages of investigating B-DNA in the hydrated state, as opposed to A-DNA in the dehydrated state, are exemplified in a series of studies that show: (1) improved quantification of DNA in cells; (2) improved discrimination and reproducibility of FTIR spectra recorded of cells progressing through the cell cycle; (3) insights into the biological significance of A-DNA as evidenced by an interesting study on bacteria, which can survive desiccation and at the same time undergo the B-A-B transition. Finally, the importance of preserving the B-DNA conformation for the diagnosis of cancer is put forward as way to improve the sensitivity of this powerful technique.
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Affiliation(s)
- Bayden R Wood
- Centre for Biospectroscopy, School of Chemistry, Monash University, 3800, Victoria, Australia.
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8
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Zucchiatti P, Mitri E, Kenig S, Billè F, Kourousias G, Bedolla DE, Vaccari L. Contribution of Ribonucleic Acid (RNA) to the Fourier Transform Infrared (FTIR) Spectrum of Eukaryotic Cells. Anal Chem 2016; 88:12090-12098. [PMID: 28193045 DOI: 10.1021/acs.analchem.6b02744] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We report on an optimized protocol for the digestion of cellular RNA, which minimally affects the cell membrane integrity, maintaining substantially unaltered the vibrational contributions of the other cellular macromolecules. The design of this protocol allowed us to collect the first Fourier transform infrared (FTIR) spectra of intact hydrated B16 mouse melanoma cells deprived of RNA and to highlight the in-cell diagnostic spectral features of it. Complementing the cellular results with the FTIR analysis of extracted RNA, ds-DNA, ss-cDNA and isolated nuclei, we verified that the spectral component centered at ∼1220 cm-1 is a good qualitative and semiquantitative marker of cellular DNA, since it is minimally affected by cellular RNA removal. Conversely, the band centered at ∼1240 cm-1, conventionally attributed to RNA, is only a qualitative marker of it, since its intensity is majorly influenced by other macromolecules containing diverse phosphate groups, such as phospholipids and phosphorylated proteins. On the other hand, we proved that the spectral contribution centered at ∼1120 cm-1 is the most reliable indicator of variations in cellular RNA levels, that better correlates with cellular metabolic activity. The achievement of these results have been made possible also by the implementation of new methods for baseline correction and automated peak fitting, presented in this paper.
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Affiliation(s)
- Paolo Zucchiatti
- Elettra-Sincrotrone Trieste, S.S. 14 Km 163.5, 34151, Trieste, Italy.,Dipartimento di Fisica, Università degli Studi di Trieste , via Valerio 2, 34127 Trieste, Italy
| | - Elisa Mitri
- Elettra-Sincrotrone Trieste, S.S. 14 Km 163.5, 34151, Trieste, Italy
| | - Saša Kenig
- Elettra-Sincrotrone Trieste, S.S. 14 Km 163.5, 34151, Trieste, Italy
| | - Fulvio Billè
- Elettra-Sincrotrone Trieste, S.S. 14 Km 163.5, 34151, Trieste, Italy
| | - George Kourousias
- Elettra-Sincrotrone Trieste, S.S. 14 Km 163.5, 34151, Trieste, Italy
| | - Diana Eva Bedolla
- Elettra-Sincrotrone Trieste, S.S. 14 Km 163.5, 34151, Trieste, Italy
| | - Lisa Vaccari
- Elettra-Sincrotrone Trieste, S.S. 14 Km 163.5, 34151, Trieste, Italy
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Birarda G, Ravasio A, Suryana M, Maniam S, Holman HYN, Grenci G. IR-Live: fabrication of a low-cost plastic microfluidic device for infrared spectromicroscopy of living cells. LAB ON A CHIP 2016; 16:1644-1651. [PMID: 27040369 DOI: 10.1039/c5lc01460c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Water is a strong mid-infrared absorber, which has hindered the full exploitation of label-free and non-invasive infrared (IR) spectromicroscopy techniques for the study of living biological samples. To overcome this barrier, many researchers have built sophisticated fluidic chambers or microfluidic chips wherein the depth of the liquid medium in the sample compartment is limited to 10 μm or less. Here we report an innovative and simple way to fabricate plastic devices with infrared transparent view-ports enabling infrared spectromicroscopy of living biological samples; therefore the device is named "IR-Live". Advantages of this approach include lower production costs, a minimal need to access a micro-fabrication facility, and unlimited mass or waste exchange for the living samples surrounding the view-port area. We demonstrate that the low-cost IR-Live in combination with microfluidic perfusion techniques enables long term (>60 h) cell culture, which broadens the capability of IR spectromicroscopy for studying living biological samples. To illustrate this, we first applied the device to study protein and lipid polarity in migrating REF52 fibroblasts by collecting 2-dimensional spectral chemical maps at a micrometer spatial resolution. Then, we demonstrated the suitability of our approach to study dynamic cellular events by collecting a time series of spectral maps of U937 monocytes during the early stage of cell attachment to a bio-compatible surface.
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Affiliation(s)
- G Birarda
- Berkeley Synchrotron Infrared Structural Biology Program, Lawrence Berkeley National Laboratory, 1 Cyclotron road, 94720 Berkeley, USA and Elettra - Sincrotrone Trieste, Strada Statale 14 - km 163, 5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - A Ravasio
- Mechanobiology Institute (MBI), National University of Singapore, 5A Engineering Drive 1, 117411 Singapore, Singapore.
| | - M Suryana
- Mechanobiology Institute (MBI), National University of Singapore, 5A Engineering Drive 1, 117411 Singapore, Singapore.
| | - S Maniam
- Mechanobiology Institute (MBI), National University of Singapore, 5A Engineering Drive 1, 117411 Singapore, Singapore.
| | - H-Y N Holman
- Berkeley Synchrotron Infrared Structural Biology Program, Lawrence Berkeley National Laboratory, 1 Cyclotron road, 94720 Berkeley, USA
| | - G Grenci
- Mechanobiology Institute (MBI), National University of Singapore, 5A Engineering Drive 1, 117411 Singapore, Singapore.
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10
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Pitfalls and promises in FTIR spectromicroscopy analyses to monitor iron-mediated DNA damage in sperm. Reprod Toxicol 2016; 61:39-46. [PMID: 26923261 DOI: 10.1016/j.reprotox.2016.02.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 02/01/2016] [Accepted: 02/19/2016] [Indexed: 01/06/2023]
Abstract
Many drugs, chemicals, and environmental factors can impair sperm functionality by inducing DNA damage, one of the important causes of reduced fertility potential. The use of vibrational spectromicroscopy represents a promising approach for monitoring DNA integrity in sperm, although some limitations exist, depending from the experimental conditions. Here, we report that when using FTIR spectromicroscopy to reveal oxidative stress mediated by Fenton's reaction on hydrated sperm samples, DNA damage interpretation is partially compromised by unexpected cell surface precipitates. The precipitates give a broad band in the 1150-1000cm(-1) infrared region, which partially covers one of the signatures of DNA (phosphate stretching bands), and are detected as iron and oxygen containing material when using XRF spectroscopy. On the other hand, the analyses further support the potential of FTIR spectromicroscopy to reveal cellular oxidative damage events such as lipid peroxidation, protein misfolding and aggregations, as well as DNA strain breaks.
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11
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Kenig S, Bedolla DE, Birarda G, Faoro V, Mitri E, Vindigni A, Storici P, Vaccari L. Fourier transform infrared microspectroscopy reveals biochemical changes associated with glioma stem cell differentiation. Biophys Chem 2015; 207:90-6. [DOI: 10.1016/j.bpc.2015.09.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 09/22/2015] [Accepted: 09/22/2015] [Indexed: 02/08/2023]
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12
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Fale PL, Altharawi A, Chan KLA. In situ Fourier transform infrared analysis of live cells' response to doxorubicin. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2015; 1853:2640-8. [PMID: 26231933 DOI: 10.1016/j.bbamcr.2015.07.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 07/08/2015] [Accepted: 07/26/2015] [Indexed: 11/15/2022]
Abstract
The study of the response of cancer cells to chemotherapy drugs is of high importance due to the specificity of some drugs to certain types of cancer and the resistance of some specific cancer types to chemotherapy drugs. Our aim was to develop and apply the label-free and non-destructive Fourier transform infrared (FTIR) method to determine the sensitivity of three different cancer cell-lines to a common anti-cancer drug doxorubicin at different concentrations and to demonstrate that information about the mechanism of resistance to the chemotherapy drug can be extracted from spectral data. HeLa, PC3, and Caco-2 cells were seeded and grown on an attenuated total reflection (ATR) crystal, doxorubicin was applied at the clinically significant concentration of 0.1-20 μM, and spectra of the cells were collected hourly over 20 h. Analysis of the amide bands was correlated with cell viability, which had been cross validated with MTT assays, allowing to determine that the three cell lines had significantly different resistance to doxorubicin. The difference spectra and principal component analysis (PCA) highlighted the subtle chemical changes in the living cells under treatment. Spectral regions assigned to nucleic acids (mainly 1085 cm(-1)) and carbohydrates (mainly 1024 cm(-1)) showed changes that could be related to the mode of action of the drug and the mechanism of resistance of the cell lines to doxorubicin. This is a cost-effective method that does not require bioassay reagents but allows label-free, non-destructive and in situ analysis of chemical changes in live cells, using standard FTIR equipment adapted to ATR measurements.
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Affiliation(s)
- Pedro L Fale
- Institute of Pharmaceutical Science, King's College London, SE1 9NH, UK
| | - Ali Altharawi
- Institute of Pharmaceutical Science, King's College London, SE1 9NH, UK
| | - K L Andrew Chan
- Institute of Pharmaceutical Science, King's College London, SE1 9NH, UK.
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13
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Mitri E, Kenig S, Coceano G, Bedolla DE, Tormen M, Grenci G, Vaccari L. Time-Resolved FT-IR Microspectroscopy of Protein Aggregation Induced by Heat-Shock in Live Cells. Anal Chem 2015; 87:3670-7. [DOI: 10.1021/ac5040659] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Elisa Mitri
- Elettra−Sincrotrone Trieste, Strada Statale
14 km 163.5, 34149 Basovizza, Trieste Italy
- IOM-CNR, TASC Laboratory, Strada Statale 14 km 163.5, 34149 Basovizza, Trieste Italy
| | - Saša Kenig
- Elettra−Sincrotrone Trieste, Strada Statale
14 km 163.5, 34149 Basovizza, Trieste Italy
| | - Giovanna Coceano
- IOM-CNR, TASC Laboratory, Strada Statale 14 km 163.5, 34149 Basovizza, Trieste Italy
| | - Diana E. Bedolla
- Elettra−Sincrotrone Trieste, Strada Statale
14 km 163.5, 34149 Basovizza, Trieste Italy
| | - Massimo Tormen
- IOM-CNR, TASC Laboratory, Strada Statale 14 km 163.5, 34149 Basovizza, Trieste Italy
| | - Gianluca Grenci
- IOM-CNR, TASC Laboratory, Strada Statale 14 km 163.5, 34149 Basovizza, Trieste Italy
- MBI, National University of Singapore T-Lab, 5A Engineering Drive 1, Singapore
| | - Lisa Vaccari
- Elettra−Sincrotrone Trieste, Strada Statale
14 km 163.5, 34149 Basovizza, Trieste Italy
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14
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Clède S, Policar C. Metal-carbonyl units for vibrational and luminescence imaging: towards multimodality. Chemistry 2014; 21:942-58. [PMID: 25376740 DOI: 10.1002/chem.201404600] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Metal-carbonyl complexes are attractive structures for bio-imaging. In addition to unique vibrational properties due to the CO moieties enabling IR and Raman cell imaging, the appropriate choice of ancillary ligands opens up the opportunity for luminescence detection. Through a classification by techniques, past and recent developments in the application of metal-carbonyl complexes for vibrational and luminescence bio-imaging are reviewed. Finally, their potential as bimodal IR and luminescent probes is addressed.
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Affiliation(s)
- Sylvain Clède
- Ecole Normale Supérieure, PSL Research University, Département de Chimie, Sorbonne Universités-UPMC Univ Paris 06, CNRS-ENS-UPMC, Laboratoire des Biomolécules, UMR7203, 24, rue Lhomond, 75005 Paris (France), Fax: (+33) 1-4432-3389
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15
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Birarda G, Bedolla DE, Mitri E, Pacor S, Grenci G, Vaccari L. Apoptotic pathways of U937 leukemic monocytes investigated by infrared microspectroscopy and flow cytometry. Analyst 2014; 139:3097-106. [DOI: 10.1039/c4an00317a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Infrared microspectroscopy and flow cytometry were used to study apoptosis in starved and CCCP-treated U937 monocyte cells.
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Affiliation(s)
- Giovanni Birarda
- Elettra-Sincrotrone Trieste
- SISSI Beamline
- Trieste, Italy
- Lawrence Berkeley National Laboratory
- Berkeley, USA
| | | | - Elisa Mitri
- Università degli studi di Trieste
- Trieste, Italy
- CNR-IOM
- TASC Laboratory
- 34149 Trieste, Italy
| | | | - Gianluca Grenci
- CNR-IOM
- TASC Laboratory
- 34149 Trieste, Italy
- Mechanobiology Institute (MBI)
- National University of Singapore
| | - Lisa Vaccari
- Elettra-Sincrotrone Trieste
- SISSI Beamline
- Trieste, Italy
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Carvalho LKHD, Araujo AVPD, Silva MGLD, Laiso RAN, Maria DA. Response Proliferative Capacity of Undifferentiated Stem Cells of Obtained Human Adult Dental Follicle. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/scd.2014.44013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Opportunities for live cell FT-infrared imaging: macromolecule identification with 2D and 3D localization. Int J Mol Sci 2013; 14:22753-81. [PMID: 24256815 PMCID: PMC3856089 DOI: 10.3390/ijms141122753] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 10/31/2013] [Accepted: 11/01/2013] [Indexed: 12/22/2022] Open
Abstract
Infrared (IR) spectromicroscopy, or chemical imaging, is an evolving technique that is poised to make significant contributions in the fields of biology and medicine. Recent developments in sources, detectors, measurement techniques and speciman holders have now made diffraction-limited Fourier transform infrared (FTIR) imaging of cellular chemistry in living cells a reality. The availability of bright, broadband IR sources and large area, pixelated detectors facilitate live cell imaging, which requires rapid measurements using non-destructive probes. In this work, we review advances in the field of FTIR spectromicroscopy that have contributed to live-cell two and three-dimensional IR imaging, and discuss several key examples that highlight the utility of this technique for studying the structure and chemistry of living cells.
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