1
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Mahmoud SS, Morsy SA, Aly EM, Mohalhal IA. Bio-spectroscopic investigation linking changes of retinal structure with short-term administration of Amiodarone and revealing the ameliorative effect of vitamin E supplementation. Sci Rep 2024; 14:20746. [PMID: 39237619 DOI: 10.1038/s41598-024-70573-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 08/19/2024] [Indexed: 09/07/2024] Open
Abstract
Long term use of Amiodarone (AMIO) is associated with the development of ocular adverse effects. This study investigates the short term effects, and the ameliorative consequence of vitamin E on retinal changes that were associated with administration of AMIO. This is accomplished by investigating both retinal structural and conformational characteristics using Fourier transform infrared spectroscopy (FTIR) and Fundus examination. Three groups of healthy rabbits of both sexes were used; the first group served as control. The second group was orally treated with AMIO (160 mg /kg body weight) in a daily basis for two weeks. The last group orally received AMIO as the second group for two weeks then, oral administration of vitamin E (100 mg/kg body weight) for another two weeks as well. FTIR results revealed significant structural and conformational changes in retinal tissue constituents that include lipids and proteins due to AMIO administration. AMIO treatment was associated with fluctuated changes (increased/decreased) in the band position and bandwidth of NH, OH, and CH bonds. This was concomitant with changes in the percentage of retinal protein constituents in particularly α-helix and Turns. AMIO facilitates the formation of intra-molecular hydrogen bonding and turned retinal lipids to be more disordered structure. In conclusion, the obtained FTIR data together with principal component analysis provide evidence that administration of vitamin E following the treatment with AMIO can ameliorate these retinal changes and, these biophysical changes are too early to be detected by Fundus examination.
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Affiliation(s)
- Sherif S Mahmoud
- Biophysics and Laser Science Unit, Research Institute of Ophthalmology, Giza, Egypt.
| | - Sahar A Morsy
- Physics Department, Faculty of Science, Al-Azhar University (Girls Branch), Cairo, Egypt
| | - Eman M Aly
- Biophysics and Laser Science Unit, Research Institute of Ophthalmology, Giza, Egypt
| | - Islam A Mohalhal
- Retina Department, Research Institute of Ophthalmology, Giza, Egypt
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2
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Olbrich K, Setkowicz Z, Kawon K, Czyzycki M, Janik-Olchawa N, Carlomagno I, Aquilanti G, Chwiej J. Vibrational spectroscopy methods for investigation of the animal models of glioblastoma multiforme. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123230. [PMID: 37586277 DOI: 10.1016/j.saa.2023.123230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 06/26/2023] [Accepted: 08/01/2023] [Indexed: 08/18/2023]
Abstract
Glioblastoma multiforme (GBM) is the most common and devastating primary brain tumor among adults. It is highly lethal disease, as only 25% of patients survive longer than 1 year and only 5% more than 5 years from the diagnosis. To search for the new, more effective methods of treatment, the understanding of mechanisms underlying the process of tumorigenesis is needed. The new light on this problem may be shed by the analysis of biochemical anomalies of tissues affected by tumor growth. Therefore, in the present work, we applied the Fourier transform infrared (FTIR) and Raman microspectroscopy to evaluate changes in the distribution and structure of biomolecules appearing in the rat brain as a result of glioblastoma development. In turn, synchrotron X-ray fluorescence microscopy was utilized to determine the elemental anomalies appearing in the nervous tissue. To achieve the assumed goals of the study animal models of GBM were used. The rats were subjected to the intracranial implantation of glioma cells with different degree of invasiveness. For spectroscopic investigation brain slices taken from the area of cancer cells administration were used. The obtained results revealed, among others, the decrease content of lipids and compounds containing carbonyl groups, compositional and structural changes of proteins as well as abnormalities in the distribution of low atomic number elements within the region of tumor.
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Affiliation(s)
- Karolina Olbrich
- Faculty of Physics and Applied Computer Science, AGH University of Krakow, Krakow, Poland
| | - Zuzanna Setkowicz
- Institute of Zoology and Biomedical Research, Jagiellonian University, Krakow, Poland
| | - Kamil Kawon
- Faculty of Physics and Applied Computer Science, AGH University of Krakow, Krakow, Poland
| | - Mateusz Czyzycki
- Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Natalia Janik-Olchawa
- Institute of Zoology and Biomedical Research, Jagiellonian University, Krakow, Poland
| | | | | | - Joanna Chwiej
- Faculty of Physics and Applied Computer Science, AGH University of Krakow, Krakow, Poland.
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3
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Rugiel M, Setkowicz-Janeczko Z, Kosiek W, Rauk Z, Kawon K, Chwiej J. Does Ketogenic Diet Used in Pregnancy Affect the Nervous System Development in Offspring?─FTIR Microspectroscopy Study. ACS Chem Neurosci 2023; 14:2775-2791. [PMID: 37471579 PMCID: PMC10401638 DOI: 10.1021/acschemneuro.3c00331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 07/05/2023] [Indexed: 07/22/2023] Open
Abstract
Anti-seizure medications used during pregnancy may have transient or long-lasting impact on the nervous system of the offspring. Therefore, there is a great need to search for alternative therapies for pregnant women suffering from seizures. One of the solutions may be the use of the ketogenic diet (KD), which has been successfully applied as a treatment of drug-resistant epilepsy in children and adults. However, the risks associated with the use of this dietary therapy during pregnancy are unknown and more investigation in this area is needed. To shed some light on this problem, we attempted to determine the potential abnormalities in brain biomolecular composition that may occur in the offspring after the prenatal exposure to KD. To achieve this, the female Wistar rats were, during pregnancy, fed with either ketogenic or standard laboratory diet, and for further studies, their male offspring at 2, 6, or 14 days of age were used. Fourier transform infrared microspectroscopy was applied for topographic and quantitative analysis of main biological macromolecules (proteins, lipids, compounds containing phosphate and carbonyl groups, and cholesterol) in brain samples. Performed chemical mapping and further semi-quantitative and statistical analysis showed that the use of the KD during pregnancy, in general, does not lead to the brain biochemical anomalies in 2 and 6 days old rats. The exception from this rule was increased relative (comparing to proteins) content of compounds containing phosphate groups in white matter and cortex of 2 days old rats exposed prenatally to KD. Greater number of abnormalities was found in brains of the 14 days old offspring of KD-fed mothers. They included the increase of the relative level of compounds containing carbonyl groups (in cortex as well as multiform and molecular cells of the hippocampal formation) as well as the decrease of the relative content of lipids and their structural changes (in white matter). What is more, the surface of the internal capsule (structure of the white matter) determined for this age group was smaller in animals subjected to prenatal KD exposure. The observed changes seem to arise from the elevated exposition to ketone bodies during a fetus life and the disturbance of lipid metabolism after prenatal exposure to the KD. These changes may be also associated with the processes of compensation of mother organism, which slowly began to make up for the deficiencies in carbohydrates postpartum.
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Affiliation(s)
- Marzena Rugiel
- Faculty
of Physics and Applied Computer Science, AGH University of Krakow, Krakow 30-059, Poland
| | | | - Wojciech Kosiek
- Institute
of Zoology and Biomedical Research, Jagiellonian
University, Krakow 31-007, Poland
| | - Zuzanna Rauk
- Institute
of Zoology and Biomedical Research, Jagiellonian
University, Krakow 31-007, Poland
| | - Kamil Kawon
- Faculty
of Physics and Applied Computer Science, AGH University of Krakow, Krakow 30-059, Poland
| | - Joanna Chwiej
- Faculty
of Physics and Applied Computer Science, AGH University of Krakow, Krakow 30-059, Poland
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4
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Hayes CA, Morgan NI, Thomas KC, Pushie MJ, Vijayasankar A, Ashmore BG, Wontor K, De Leon MA, Ashpole NM. Neuronal and Astrocyte Insulin-like Growth Factor-1 Signaling Differentially Modulates Ischemic Stroke Damage. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.02.535245. [PMID: 37034764 PMCID: PMC10081310 DOI: 10.1101/2023.04.02.535245] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Ischemic stroke is a leading cause of death and disability, as therapeutic options for mitigating the long-term deficits precipitated by the event remain limited. Acute administration of the neuroendocrine modulator insulin-like growth factor-1 (IGF-1) attenuates ischemic stroke damage in preclinical models, and clinical studies suggest IGF-1 can reduce the risk of stroke and improve overall outcomes. The cellular mechanism by which IGF-1 exerts this protection is poorly defined, as all cells within the neurovascular unit express the IGF-1 receptor. We hypothesize that the functional regulation of both neurons and astrocytes by IGF-1 is critical in minimizing damage in ischemic stroke. To test this, we utilized inducible astrocyte-specific or neuron-specific transgenic mouse models to selectively reduce IGF-1R in the adult mouse brain prior to photothrombotic stroke. Acute changes in blood brain barrier permeability, microglial activation, systemic inflammation, and biochemical composition of the brain were assessed 3 hours following photothrombosis, and significant protection was observed in mice deficient in neuronal and astrocytic IGF-1R. When the extent of tissue damage and sensorimotor dysfunction was assessed for 3 days following stroke, only the neurological deficit score continued to show improvements, and the extent of improvement was enhanced with additional IGF-1 supplementation. Overall, results indicate that neuronal and astrocytic IGF-1 signaling influences stroke damage but IGF-1 signaling within these individual cell types is not required for minimizing tissue damage or behavioral outcome.
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Affiliation(s)
- Cellas A. Hayes
- Department of BioMolecular Sciences, University of Mississippi School of Pharmacy, University of Mississippi, University, MS 386671
| | - Nyah I. Morgan
- Department of BioMolecular Sciences, University of Mississippi School of Pharmacy, University of Mississippi, University, MS 386671
| | - Kamryn C. Thomas
- Department of BioMolecular Sciences, University of Mississippi School of Pharmacy, University of Mississippi, University, MS 386671
| | - M. Jake. Pushie
- Department of Surgery, College of Medicine, University of Saskatchewan, SK S7N 5E5 Canada
| | - Akshaya Vijayasankar
- Department of BioMolecular Sciences, University of Mississippi School of Pharmacy, University of Mississippi, University, MS 386671
| | - Brandon G. Ashmore
- Department of BioMolecular Sciences, University of Mississippi School of Pharmacy, University of Mississippi, University, MS 386671
| | - Kendall Wontor
- Department of Chemistry and Biochemistry, The University of Mississippi, University, Mississippi 38677, United States
| | - Miguel A. De Leon
- Department of BioMolecular Sciences, University of Mississippi School of Pharmacy, University of Mississippi, University, MS 386671
| | - Nicole M. Ashpole
- Department of BioMolecular Sciences, University of Mississippi School of Pharmacy, University of Mississippi, University, MS 386671
- Research Institute of Pharmaceutical Sciences, University of Mississippi School of Pharmacy, University of Mississippi, University, MS 38677
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5
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Faria RA, Leal LB, Thebit MM, Pereira SWA, Serafim NR, Barauna VG, da Chagas E Silva Carvalho LF, Sartório CL, Gouvea SA. Potential Role of Fourier Transform Infrared Spectroscopy as a Screening Approach for Breast Cancer. APPLIED SPECTROSCOPY 2023; 77:405-417. [PMID: 36703259 DOI: 10.1177/00037028231156194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Breast cancer is a heterogeneous disease, and its spread involves a succession of clinical and pathological stages. Screening is predominantly based on mammography, which has critical limitations related to the effectiveness and production of false-positive or false-negative results, generating discomfort and low adherence. In this context, infrared with attenuated total reflection Fourier transform infrared (ATR FT-IR) spectroscopy emerges as a non-destructive sample tool, which is non-invasive, label-free, has a low operating-cost, and requires only a small amount of sample, including liquid plasma samples. We sought to evaluate the clinical applicability of ATR FT-IR in breast cancer screening. ATR FT-IR spectroscopy through its highest potential spectral biomarker could distinguish, by liquid plasma biopsy, breast cancer patients and healthy controls, obtaining a sensitivity of 97%, specificity of 93%, a receiver operating characteristic ROC curve of 97%, and a prediction accuracy of 94%. The main variance between the groups was mainly in the band 1511 cm-1 of the control group, 1502 and 1515 cm-1 of the cancer group, which are the peaks of the bands referring to proteins and amide II. ATR FT-IR spectroscopy has demonstrated to be a promising tool for breast cancer screening, given its time efficiency, cost of approach, and its high ability to distinguish between the liquid plasma samples of breast cancer patients and healthy controls.
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Affiliation(s)
- Rodrigo A Faria
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, Brazil
| | - Leonardo B Leal
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, Brazil
| | - Marcela M Thebit
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, Brazil
| | - Sergio W A Pereira
- Mastology Service Evangelical Hospital of Vila Velha, Vila Velha, Brazil
| | - Neuzimar R Serafim
- Mastology Service Evangelical Hospital of Vila Velha, Vila Velha, Brazil
| | - Valerio G Barauna
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, Brazil
| | | | - Carmem L Sartório
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, Brazil
| | - Sonia A Gouvea
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, Brazil
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6
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Kucuk Baloglu F, Guldag Tas D, Yilmaz O, Severcan F. The recovery effect of Vitamin C on structural alterations due to Streptozotocin-Induced diabetes in rat testicular tissues. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 288:122149. [PMID: 36470089 DOI: 10.1016/j.saa.2022.122149] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 10/31/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Type I Diabetes is a multisystem disease that causes alterations in carbohydrate, protein, and fat metabolisms due to hyperglycemia. It has an extensive pathology, especially the mechanism involving oxidative stress is still complex. Type I diabetes is correlated with increased formation of free radicals and decreased levels of antioxidant potential. Vitamin C (Vit C) is a powerful antioxidant that participates in antioxidant defense, protecting lipid membranes and proteins from oxidative damage by donating electrons to free radicals. The effect of type I diabetes and the recovery role of Vit C on the structure and composition of the biomolecular content of testicular tissue is still unknown. Therefore, the current study aimed to investigate the alterations in the biomolecules of rat testes due to Streptozotocin (STZ)-induced type I diabetes using Attenuated Total Reflectance (ATR)-Fourier Transform Infrared (FTIR) spectroscopy and histological staining. The results revealed that the biomolecular structure and composition of testicular tissue are highly affected due to the development of diabetes. We obtained decreased saturation levels and increased unsaturation index in the lipids indicating the presence of lipid peroxidation in the diabetic state. The elevated lipid peroxidation levels have been implicated in the pathogenesis of naturally occurring and chemically induced diabetes. On the other hand, the protein content of diabetic rat testicular tissue was shown to decrease considerably, indicating an increase in proteolysis processes. Supporting the ratio of protein structural and conformational change, protein secondary structural components were also found to alter substantially in the diabetic state. Diabetes was also shown to lead to a decrease in the content of nucleic acids compared to proteins. These diabetes-induced alterations were found to be substantially recovered with the administration of Vit C. Although different doses and administration types of Vit C have been reported in the literature, there is no consensus yet. Therefore, we used three different doses of Vit C in our study as high (100 mg/kg/day), medium (50 mg/kg/day) and low (15 mg/kg/day) doses intraperitoneally in the present study, and the medium dose was found to be the most effective in the recovery from the diabetes-induced structural damages on rat testicular tissue. Vit C may have a therapeutic effect to be used as a complementary therapy in the treatment of diabetes.
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Affiliation(s)
- Fatma Kucuk Baloglu
- Middle East Technical University, Department of Biological Sciences, Ankara, Turkey; Giresun University, Department of Biology, Giresun, Turkey
| | - Damla Guldag Tas
- Middle East Technical University, Department of Biological Sciences, Ankara, Turkey
| | - Okkes Yilmaz
- Firat University, Department of Biology, Elazig, Turkey
| | - Feride Severcan
- Middle East Technical University, Department of Biological Sciences, Ankara, Turkey; Altinbas University, Department of Biophysics, Faculty of Medicine, Istanbul, Turkey.
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7
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Dróżdż A, Sławińska-Brych A, Kubera D, Kimsa-Dudek M, Gola JM, Adamska J, Kruszniewska-Rajs C, Matwijczuk A, Karcz D, Dąbrowski W, Stepulak A, Gagoś M. Effect of Antibiotic Amphotericin B Combinations with Selected 1,3,4-Thiadiazole Derivatives on RPTECs in an In Vitro Model. Int J Mol Sci 2022; 23:ijms232315260. [PMID: 36499589 PMCID: PMC9738598 DOI: 10.3390/ijms232315260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 11/22/2022] [Accepted: 11/25/2022] [Indexed: 12/12/2022] Open
Abstract
4-(5-methyl-1,3,4-thiadiazole-2-yl) benzene-1,3-diol (C1) and 4-[5-(naphthalen-1-ylmethyl)-1,3,4-thiadiazol-2-yl] benzene1,3-diol (NTBD) are representative derivatives of the thiadiazole group, with a high antimycotic potential and minimal toxicity against normal human fibroblast cells. The present study has proved its ability to synergize with the antifungal activity of AmB. The aim of this work was to evaluate the cytotoxic effects of C1 or NTBD, alone or in combination with AmB, on human renal proximal tubule epithelial cells (RPTECs) in vitro. Cell viability was assessed with the MTT assay. Flow cytometry and spectrofluorimetric techniques were used to assess the type of cell death and production of reactive oxygen species (ROS), respectively. The ELISA assay was performed to measure the caspase-2, -3, and -9 activity. ATR-FTIR spectroscopy was used to evaluate biomolecular changes in RPTECs induced by the tested formulas. The combinations of C1/NTBD and AmB did not exert a strong inhibitory effect on the viability/growth of kidney cells, as evidenced by the negligible changes in the apoptotic/necrotic rate and caspase activity, compared to the control cells. Both NTBD and C1 displayed stronger anti-oxidant activity when combined with AmB. The relatively low nephrotoxicity of the thiadiazole derivative combinations and the protective activity against AmB-induced oxidative stress may indicate their potential use in the therapy of fungal infections.
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Affiliation(s)
- Agnieszka Dróżdż
- Department of Cell Biology, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland
| | - Adrianna Sławińska-Brych
- Department of Cell Biology, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland
| | - Dominika Kubera
- Department of Cell Biology, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland
| | - Magdalena Kimsa-Dudek
- Department of Nutrigenomics and Bromatology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
| | - Joanna Magdalena Gola
- Department of Molecular Biology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
- Correspondence:
| | - Jolanta Adamska
- Department of Molecular Biology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
| | - Celina Kruszniewska-Rajs
- Department of Molecular Biology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
| | - Arkadiusz Matwijczuk
- Department of Biophysics, University of Life Sciences, Akademicka 13, 20-950 Lublin, Poland
| | - Dariusz Karcz
- Department of Chemical Technology and Environmental Analytics, Cracow University of Technology, 31-155 Krakow, Poland
| | - Wojciech Dąbrowski
- I Clinic of Anaesthesiology and Intensive Therapy with Clinical Paediatric Department, Medical University of Lublin, Jaczewskiego 8, 20-090 Lublin, Poland
| | - Andrzej Stepulak
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Mariusz Gagoś
- Department of Cell Biology, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland
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8
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Grant-Peters M, Rich-Griffin C, Grant-Peters JE, Cinque G, Dendrou CA. Photizo: an open-source library for cross-sample analysis of FTIR spectroscopy data. Bioinformatics 2022; 38:3490-3492. [PMID: 35608303 PMCID: PMC9237726 DOI: 10.1093/bioinformatics/btac346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/28/2022] [Accepted: 05/16/2022] [Indexed: 11/30/2022] Open
Abstract
MOTIVATION With continually improved instrumentation, Fourier transform infrared (FTIR) microspectroscopy can now be used to capture thousands of high-resolution spectra for chemical characterization of a sample. The spatially resolved nature of this method lends itself well to histological profiling of complex biological specimens. However, current software can make joint analysis of multiple samples challenging and, for large datasets, computationally infeasible. RESULTS To overcome these limitations, we have developed Photizo-an open-source Python library enabling high-throughput spectral data pre-processing, visualization and downstream analysis, including principal component analysis, clustering, macromolecular quantification and mapping. Photizo can be used for analysis of data without a spatial component, as well as spatially resolved data, obtained e.g. by scanning mode IR microspectroscopy and IR imaging by focal plane array detector. AVAILABILITY AND IMPLEMENTATION The code underlying this article is available at https://github.com/DendrouLab/Photizo with access to example data available at https://zenodo.org/record/6417982#.Yk2O9TfMI6A.
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Affiliation(s)
- Melissa Grant-Peters
- Nuffield Department of Medicine, Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK
| | - Charlotte Rich-Griffin
- Nuffield Department of Medicine, Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK
| | | | | | - Calliope A Dendrou
- Nuffield Department of Medicine, Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK
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9
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Cai W, Wang G, Wu H, Li H, Shen C, Wei X, Yu K, Sun Q, Wang Z. Identifying traumatic brain injury (TBI) by ATR-FTIR spectroscopy in a mouse model. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 274:121099. [PMID: 35257986 DOI: 10.1016/j.saa.2022.121099] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 02/24/2022] [Accepted: 02/26/2022] [Indexed: 06/14/2023]
Abstract
Traumatic brain injury (TBI) is one of the most common mechanical injuries and plays a significant role in forensic practice. For cadavers, however, accurate diagnosis of TBI becomes a more and more challenging task as the level of decomposition increases. Our main purpose was to investigate whether TBI in putrefied mouse cadavers can be identified by Fourier Transform Infrared (FT-IR). The method proposed by Feeney et al. was used to establish the mouse TBI model. Principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) modeling were used to distinguish fresh and putrefied brain tissues. Then, we established two PLS-DA models to identify injured area samples in fresh and putrefied brain tissue samples. The accuracy of the two models were 100% and 92.5%. Our preliminary research has proved that the use of FT-IR spectroscopy combined with chemometrics can identify TBI more quickly and accurately in cadavers, providing crucial evidence for judicial proceedings.
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Affiliation(s)
- Wumin Cai
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Gongji Wang
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Hao Wu
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Huiyu Li
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Chen Shen
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xin Wei
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Kai Yu
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Qinru Sun
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
| | - Zhenyuan Wang
- Department of Forensic Pathology, College of Forensic Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
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10
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Furber KL, Lacombe RJS, Caine S, Thangaraj MP, Read S, Rosendahl SM, Bazinet RP, Popescu BF, Nazarali AJ. Biochemical Alterations in White Matter Tracts of the Aging Mouse Brain Revealed by FTIR Spectroscopy Imaging. Neurochem Res 2022; 47:795-810. [PMID: 34820737 DOI: 10.1007/s11064-021-03491-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 05/31/2021] [Accepted: 11/17/2021] [Indexed: 11/25/2022]
Abstract
White matter degeneration in the central nervous system (CNS) has been correlated with a decline in cognitive function during aging. Ultrastructural examination of the aging human brain shows a loss of myelin, yet little is known about molecular and biochemical changes that lead to myelin degeneration. In this study, we investigate myelination across the lifespan in C57BL/6 mice using electron microscopy and Fourier transform infrared (FTIR) spectroscopic imaging to better understand the relationship between structural and biochemical changes in CNS white matter tracts. A decrease in the number of myelinated axons was associated with altered lipid profiles in the corpus callosum of aged mice. FTIR spectroscopic imaging revealed alterations in functional groups associated with phospholipids, including the lipid acyl, lipid ester and phosphate vibrations. Biochemical changes in white matter were observed prior to structural changes and most predominant in the anterior regions of the corpus callosum. This was supported by biochemical analysis of fatty acid composition that demonstrated an overall trend towards increased monounsaturated fatty acids and decreased polyunsaturated fatty acids with age. To further explore the molecular mechanisms underlying these biochemical alterations, gene expression profiles of lipid metabolism and oxidative stress pathways were investigated. A decrease in the expression of several genes involved in glutathione metabolism suggests that oxidative damage to lipids may contribute to age-related white matter degeneration.
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Affiliation(s)
- Kendra L Furber
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada.
- Department of Anatomy, Physiology and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada.
- Division of Medical Sciences, University of Northern British Columbia, Prince George, BC, Canada.
| | - R J Scott Lacombe
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Sally Caine
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
| | - Merlin P Thangaraj
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
| | - Stuart Read
- Canadian Light Source, Saskatoon, SK, Canada
| | | | - Richard P Bazinet
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Bogdan F Popescu
- Department of Anatomy, Physiology and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Adil J Nazarali
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
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11
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Rugiel MM, Setkowicz ZK, Drozdz AK, Janeczko KJ, Kutorasińska J, Chwiej JG. The Use of Fourier Transform Infrared Microspectroscopy for the Determination of Biochemical Anomalies of the Hippocampal Formation Characteristic for the Kindling Model of Seizures. ACS Chem Neurosci 2021; 12:4564-4579. [PMID: 34817152 PMCID: PMC8678993 DOI: 10.1021/acschemneuro.1c00642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
![]()
The animal models
of seizures and/or epilepsy are widely used to
identify the pathomechanisms of the disease as well as to look for
and test the new antiseizure therapies. The understanding of the mechanisms
of action of new drugs and evaluation of their safety in animals require
previous knowledge concerning the biomolecular anomalies characteristic
for the particular model. Among different models of seizures, one
of the most widely used is the kindling model that was also applied
in our study. To examine the influence of multiple transauricular
electroshocks on the biochemical composition of rat hippocampal formation,
Fourier transform infrared (FT-IR) microspectrosopy was utilized.
The chemical mapping of the main absorption bands and their ratios
allowed us to detect significant anomalies in both the distribution
and structure of main biomolecules for electrically stimulated rats.
They included an increased relative content of proteins with β-sheet
conformation (an increased ratio of the absorbance at the wavenumbers
of 1635 and 1658 cm–1), a decreased level of cholesterol
and/or its esters and compounds containing phosphate groups (a diminished
intensity of the massif of 1360–1480 cm–1 and the band at 1240 cm–1), as well as increased
accumulation of carbohydrates and the compounds containing carbonyl
groups (increased intensity of the bands at 1080 and 1740 cm–1, respectively). The observed biomolecular abnormalities seem to
be the consequence of lipid peroxidation promoted by reactive oxygen
species as well as the mobilization of glucose that resulted from
the increased demand to energy during postelectroshock seizures.
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Affiliation(s)
- Marzena M. Rugiel
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, A. Mickiewicza 30, Krakow 30-059, Poland
| | - Zuzanna K. Setkowicz
- Institute of Zoology and Biomedical Research, Jagiellonian University, Golebia 24, Krakow 31-007, Poland
| | - Agnieszka K. Drozdz
- Maria Curie-Sklodowska University, Institute of Biological Sciences, Akademicka 19, Lublin 20-033, Poland
| | - Krzysztof J. Janeczko
- Institute of Zoology and Biomedical Research, Jagiellonian University, Golebia 24, Krakow 31-007, Poland
| | - Justyna Kutorasińska
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, A. Mickiewicza 30, Krakow 30-059, Poland
| | - Joanna G. Chwiej
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, A. Mickiewicza 30, Krakow 30-059, Poland
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12
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Ustaoglu SG, Ali MHM, Rakib F, Blezer ELA, Van Heijningen CL, Dijkhuizen RM, Severcan F. Biomolecular changes and subsequent time-dependent recovery in hippocampal tissue after experimental mild traumatic brain injury. Sci Rep 2021; 11:12468. [PMID: 34127773 PMCID: PMC8203626 DOI: 10.1038/s41598-021-92015-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 05/27/2021] [Indexed: 12/25/2022] Open
Abstract
Traumatic brain injury (TBI) is the main cause of disability and mortality in individuals under the age of 45 years. Elucidation of the molecular and structural alterations in brain tissue due to TBI is crucial to understand secondary and long-term effects after traumatic brain injury, and to develop and apply the correct therapies. In the current study, the molecular effects of TBI were investigated in rat brain at 24 h and 1 month after the injury to determine acute and chronic effects, respectively by Fourier transform infrared imaging. This study reports the time-dependent contextual and structural effects of TBI on hippocampal brain tissue. A mild form of TBI was induced in 11-week old male Sprague Dawley rats by weight drop. Band area and intensity ratios, band frequency and bandwidth values of specific spectral bands showed that TBI causes significant structural and contextual global changes including decrease in carbonyl content, unsaturated lipid content, lipid acyl chain length, membrane lipid order, total protein content, lipid/protein ratio, besides increase in membrane fluidity with an altered protein secondary structure and metabolic activity in hippocampus 24 h after injury. However, improvement and/or recovery effects in these parameters were observed at one month after TBI.
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Affiliation(s)
- Sebnem Garip Ustaoglu
- Department of Medical Biochemistry, Faculty of Medicine, Altinbas University, Bakirkoy, Istanbul, Turkey.
| | - Mohamed H M Ali
- Diabetes Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110, Doha, Qatar.
| | - Fazle Rakib
- Department of Chemistry and Earth Sciences, Qatar University, Doha, Qatar
| | - Erwin L A Blezer
- Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Caroline L Van Heijningen
- Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rick M Dijkhuizen
- Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Feride Severcan
- Department of Biophysics, Faculty of Medicine, Altinbas University, Bakirkoy, Istanbul, Turkey.,Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
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13
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Rakib F, Al-Saad K, Ahmed T, Ullah E, Barreto GE, Md Ashraf G, Ali MHM. Biomolecular alterations in acute traumatic brain injury (TBI) using Fourier transform infrared (FTIR) imaging spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 248:119189. [PMID: 33277210 DOI: 10.1016/j.saa.2020.119189] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 10/27/2020] [Accepted: 11/01/2020] [Indexed: 06/12/2023]
Abstract
Acute injury is one of the substantial stage post-traumatic brain injury (TBI) occurring at the moment of impact. Decreased metabolism, unregulated cerebral blood flow and direct tissue damage are triggered by acute injury. Understating the biochemical alterations associated with acute TBI is critical for brain plasticity and recovery. The objective of this study was to investigate the biochemical and molecular changes in hippocampus, corpus callosum and thalamus brain regions post-acute TBI in rats. Fourier Transform Infrared (FTIR) imaging spectroscopy were used to collect chemical images from control and 3 hrs post-TBI (Marmarou model was used for the TBI induction) rat brains and adjacent sections were treated by hematoxylin and eosin (H&E) staining to correlate with the disruption in tissue morphology and injured brain biochemistry. Our results revealed that the total lipid and total protein content decreased significantly in the hippocampus, corpus callosum and thalamus after brain injury. Reduction in lipid acyl chains (-CH2) associated with an increase in methyl (-CH3) and unsaturated lipids olefin = CH concentrations is observed. Furthermore, there is a decrease in the lipid order (disorder), which leads to an increase in acyl chain fluidity in injured rats. The results suggest acute TBI damages brain tissues mechanically rather than chemical alterations. This will help in assessing successful therapeutic strategy in order to mitigate tissue damage in acute TBI period.
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Affiliation(s)
- Fazle Rakib
- Department of Chemistry and Earth Sciences, Qatar University, Doha, Qatar
| | - Khalid Al-Saad
- Department of Chemistry and Earth Sciences, Qatar University, Doha, Qatar
| | - Tariq Ahmed
- Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Doha, Qatar
| | - Ehsan Ullah
- Qatar Computing Research Institute, Hamad Bin Khalifa University, Doha, Qatar
| | - George E Barreto
- Department of Biological Sciences, University of Limerick, Limerick, Ireland; Health Research Institute, University of Limerick, Limerick, Limerick, Ireland
| | - Ghulam Md Ashraf
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Mohamed H M Ali
- Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Doha, Qatar.
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14
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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. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 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] [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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15
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Studies on the Neuromodulatory Effects of Ginkgo biloba on Alterations in Lipid Composition and Membrane Integrity of Rat Brain Following Aluminium Neurotoxicity. Neurochem Res 2020; 45:2143-2160. [PMID: 32594293 DOI: 10.1007/s11064-020-03075-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/10/2020] [Accepted: 06/13/2020] [Indexed: 12/22/2022]
Abstract
Brain contains the highest lipid content involved in various structural and physiological activities such as structural development, neurogenesis, synaptogenesis, signal transduction and myelin sheath formation. Lipids bilayer is essential to maintain the structural integrity for the physiological functions of protein. Impairments in lipid metabolism and its composition can lead to the progression of various brain ailments such as neurodegenerative and neuropsychiatric disorders. Aluminium (Al), the potent neurotoxin has been linked to Alzheimer's disease (AD) like pathology. Al can bind to biomembrane and influence oligomerization and conformational changes of proteins by acting as cross-linkers. The present study evaluated the influence of Ginkgo biloba (GBE) on the lipid profile alterations induced by Al lactate in hippocampal and cortical regions using FTIR spectroscopy. Rats were exposed with 10 mg/kg b.w. (intraperitoneal) of Al lactate for 6 weeks. This was followed by a treatment protocol of GBE (100 mg/kg b.w.) both preexposure (2 weeks) and conjunctive (6 weeks) exposure. A self recovery group was also included, where Al withdrawal was done for 2 weeks post Al exposure. A significant decrease in peak areas of cholesterol, sphingolipids and phospholipids was observed in Al treated groups. Further, polyunsaturated fatty acids and membrane fluidity has also decreased, as revealed by olefinic and methyl asymmetric stretching bands. Al treatment significantly increased the fluorescence polarization, anisotropy and order parameter, which however were normalized following GBE supplementation. Results also showed that pretreatment with GBE provided more beneficial effects on the adverse changes following Al in membrane composition and behavioral outcome.
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16
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Tafintseva V, Shapaval V, Smirnova M, Kohler A. Extended multiplicative signal correction for FTIR spectral quality test and pre-processing of infrared imaging data. JOURNAL OF BIOPHOTONICS 2020; 13:e201960112. [PMID: 31793214 DOI: 10.1002/jbio.201960112] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/18/2019] [Accepted: 11/29/2019] [Indexed: 05/28/2023]
Abstract
Spectral quality control is an important step in the analysis of infrared spectral data, however, often neglected in scientific literature. A frequently used quality test that was originally developed for infrared spectra of bacteria is provided by OPUS software from Bruker Optik GmbH. In this study, the OPUS quality test is applied to a large number of spectra of bacteria, yeasts and moulds and hyperspectral images of microorganisms. It is shown that the use of strict thresholds for parameters of the OPUS quality test leads to discarding too many spectra. A strategy for optimizing parameters thresholds of the OPUS quality test is provided and a novel approach for spectral quality testing based on extended multiplicative signal correction (EMSC) is suggested. For all the data sets considered in our study, the EMSC quality test is shown to be the best among different alternatives of OPUS quality test provided.
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Affiliation(s)
- Valeria Tafintseva
- 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
| | - Margarita Smirnova
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
- Faculty of Biology, Belarusian State University, Minsk, Belarus
| | - Achim Kohler
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
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17
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Ali MHM, Toor SM, Rakib F, Mall R, Ullah E, Mroue K, Kolatkar PR, Al-Saad K, Elkord E. Investigation of the Effect of PD-L1 Blockade on Triple Negative Breast Cancer Cells Using Fourier Transform Infrared Spectroscopy. Vaccines (Basel) 2019; 7:vaccines7030109. [PMID: 31505846 PMCID: PMC6789440 DOI: 10.3390/vaccines7030109] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/21/2019] [Accepted: 09/03/2019] [Indexed: 12/24/2022] Open
Abstract
Interactions between programmed death-1 (PD-1) with its ligand PD-L1 on tumor cells can antagonize T cell responses. Inhibiting these interactions using immune checkpoint inhibitors has shown promise in cancer immunotherapy. MDA-MB-231 is a triple negative breast cancer cell line that expresses PD-L1. In this study, we investigated the biochemical changes in MDA-MB-231 cells following treatment with atezolizumab, a specific PD-L1 blocker. Our readouts were Fourier Transform Infrared (FTIR) spectroscopy and flow cytometric analyses. Chemometrical analysis, such as principal component analysis (PCA), was applied to delineate the spectral differences. We were able to identify the chemical alterations in both protein and lipid structure of the treated cells. We found that there was a shift from random coil and α-helical structure to β-sheet conformation of PD-L1 on tumor cells due to atezolizumab treatment, which could hinder binding with its receptors on immune cells, ensuring sustained T cell activation for potent immune responses. This work provides novel information about the effects of atezolizumab at molecular and cellular levels. FTIR bio-spectroscopy, in combination with chemometric analyses, may expedite research and offer new approaches for cancer immunology.
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Affiliation(s)
- Mohamed H M Ali
- Diabetes Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110 Doha, Qatar.
| | - Salman M Toor
- Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110 Doha, Qatar
| | - Fazle Rakib
- Department of Chemistry and Earth Sciences, Qatar University (QU), P.O. Box 2713 Doha, Qatar
| | - Raghvendra Mall
- Qatar Computing Research Institute, Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110 Doha, Qatar
| | - Ehsan Ullah
- Qatar Computing Research Institute, Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110 Doha, Qatar
| | - Kamal Mroue
- Qatar Environment & Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110 Doha, Qatar
| | - Prasanna R Kolatkar
- Diabetes Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110 Doha, Qatar
| | - Khalid Al-Saad
- Department of Chemistry and Earth Sciences, Qatar University (QU), P.O. Box 2713 Doha, Qatar
| | - Eyad Elkord
- Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110 Doha, Qatar.
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18
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Wang F, Yang T, Li J, Zhou X, Liu L. Histopathology mapping of biochemical changes in diffuse axonal injury by FTIR micro-spectroscopy. Leg Med (Tokyo) 2019; 37:76-82. [PMID: 30772767 DOI: 10.1016/j.legalmed.2019.02.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/05/2018] [Accepted: 02/01/2019] [Indexed: 10/27/2022]
Abstract
The diagnosis of diffuse axonal injury (DAI) is an important task in forensic pathology and clinical medicine. This study aimed to explore the use of Fourier transform infrared spectroscopy (FTIR) to detect DAI. The DAI area of the rat model was detected point by point by the FTIR-mapping system. Infrared spectral data of DAI were obtained by selecting the amide A band, CH3 symmetric stretching, collagen triple-helix structure and asymmetric stretching vibrational frequency of nucleic acid and phospholipid PO2 as the target peak positions. The system can automatically draw infrared spectral color pathological images. In the DAI group, the amide A protein secondary amine N-H stretching vibration and the collagen triple-helix structure of the high-absorption area were consistent with the DAI area confirmed by the silver and β-APP staining. The CH3 symmetric stretching, nucleic acid and phospholipid PO2 symmetric stretching vibration absorption spectra showed no significant differences between the experimental and verification groups. The FTIR-mapping technique can visually express the molecular characteristics of DAI, which is expected to be applied to the pathological diagnosis of DAI.
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Affiliation(s)
- Fulei Wang
- Department of Forensic Medicine, Tongji Medical College of Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, China
| | - Tiantong Yang
- Key Laboratory of Evidence Science, China University of Political Science and Law, Ministry of Education, 25 West Tucheng Road, Haidian District, Beijing 100088, China
| | - Jian Li
- Beijing People's Police College, 11 Nanjian Road, Changping District, Beijing 102202, China
| | - Xiaowei Zhou
- Chongxin Judicial Expertise Center (Hubei), F1-2, Zone B, Huazhong International Industrial Park, Yangluo Development Zone, Xinzhou District, Wuhan, Hubei 430415, China
| | - Liang Liu
- Department of Forensic Medicine, Tongji Medical College of Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, Hubei, China.
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19
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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: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [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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20
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Application of FTIR and LA-ICPMS Spectroscopies as a Possible Approach for Biochemical Analyses of Different Rat Brain Regions. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8122436] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Fourier Transform Infrared Spectroscopy (FTIR) is a non-destructive analytical technique that has been employed in this research to characterize the biochemical make-up of various rat brain regions. The sensorimotor cortex, caudate putamen, thalamus, and the hippocampus were found to have higher olefinic content—an indicator of a higher degree of unsaturated fatty acids—rich in short-chain fatty acids, and low in ester and lipid contents. While the regions of the corpus callosum, internal, and external capsule were found to contain long-chained and higher-esterified saturated fatty acids. These molecular differences may reflect the roles of the specific regions in information processing and can provide a unique biochemical platform for future studies on the earlier detection of pathology development in the brain, as a consequence of disease or injury. Laser Ablation Inductively Coupled Plasma Mass Spectroscopy (LA-ICP-MS) is another vital analytical technique that was used in this work to analyze the elements’ distribution patterns in various regions of the brain. The complementary data sets allowed the characterization of the brain regions, the chemical dominating groups, and the elemental composition. This set-up may be used for the investigation of changes in the brain caused by diseases and help create a deeper understanding of the interactions between the organic and elemental composition.
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21
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Grzelak MM, Wróbel PM, Lankosz M, Stęgowski Z, Chmura Ł, Adamek D, Hesse B, Castillo-Michel H. Diagnosis of ovarian tumour tissues by SR-FTIR spectroscopy: A pilot study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 203:48-55. [PMID: 29859492 DOI: 10.1016/j.saa.2018.05.070] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 04/27/2018] [Accepted: 05/20/2018] [Indexed: 06/08/2023]
Abstract
Ovarian cancer is the seventh most common cancer among women across the world with very high mortality rates. Histology is considered the gold standard for tumour diagnosis. FTIR spectroscopy is relies on registering biochemical differences in the samples analysed, including biological specimens. Therefore, the Synchrotron radiation based-Fourier transform infrared spectroscopy (SR-FTIR) was used for the preliminary investigation of the molecular composition of the human, non-fixed ovarian neoplastic tissues with different type of biological potential. The study that was carried out on thin tissue sections, placed on barium fluoride infrared windows, was focused on investigating spatial distribution of the biochemical markers in various ovarian tumours. Since the structural constituents of tissues accumulate different molecules which may correspond to the specific type of ovarian tumours, the main goal of this study was to check if the mean intensities of the spectral lines of some bio-molecules can be treated as ovarian cancer bio-indicators. Moreover, an attempt to identify and understand the underlying biochemical changes associated with the disease was carried out. The major spectral differences in the frequency and intensities were identified as bonds of lipids, protein massif and nucleic acids. The results obtained suggest that Fourier transform infrared spectroscopy can be used as a supporting tool in the analysis of neoplastic ovarian tissue.
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Affiliation(s)
- M M Grzelak
- AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, al. Mickiewicza 30, 30-059 Krakow, Poland.
| | - P M Wróbel
- AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, al. Mickiewicza 30, 30-059 Krakow, Poland
| | - M Lankosz
- AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Z Stęgowski
- AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Ł Chmura
- Chair of Pathomorphology, Faculty of Medicine, Jagiellonian University, Grzegórzecka 16, 31-531 Krakow, Poland
| | - D Adamek
- Chair of Pathomorphology, Faculty of Medicine, Jagiellonian University, Grzegórzecka 16, 31-531 Krakow, Poland
| | - B Hesse
- European Synchrotron Radiation Facility, 38043 Grenoble Cedex 9, France
| | - H Castillo-Michel
- European Synchrotron Radiation Facility, 38043 Grenoble Cedex 9, France
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22
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Ali MHM, Rakib F, Abdelalim EM, Limbeck A, Mall R, Ullah E, Mesaeli N, McNaughton D, Ahmed T, Al-Saad K. Fourier-Transform Infrared Imaging Spectroscopy and Laser Ablation -ICPMS New Vistas for Biochemical Analyses of Ischemic Stroke in Rat Brain. Front Neurosci 2018; 12:647. [PMID: 30283295 PMCID: PMC6157330 DOI: 10.3389/fnins.2018.00647] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 08/30/2018] [Indexed: 12/13/2022] Open
Abstract
Objective: Stroke is the main cause of adult disability in the world, leaving more than half of the patients dependent on daily assistance. Understanding the post-stroke biochemical and molecular changes are critical for patient survival and stroke management. The aim of this work was to investigate the photo-thrombotic ischemic stroke in male rats with particular focus on biochemical and elemental changes in the primary stroke lesion in the somatosensory cortex and surrounding areas, including the corpus callosum. Materials and Methods: FT-IR imaging spectroscopy and LA-ICPMS techniques examined stroke brain samples, which were compared with standard immunohistochemistry studies. Results: The FTIR results revealed that in the lesioned gray matter the relative distribution of lipid, lipid acyl and protein contents decreased significantly. Also at this locus, there was a significant increase in aggregated protein as detected by high-levels Aβ1-42. Areas close to the stroke focus experienced decrease in the lipid and lipid acyl contents associated with an increase in lipid ester, olefin, and methyl bio-contents with a novel finding of Aβ1-42 in the PL-GM and L-WM. Elemental analyses realized major changes in the different brain structures that may underscore functionality. Conclusion: In conclusion, FTIR bio-spectroscopy is a non-destructive, rapid, and a refined technique to characterize oxidative stress markers associated with lipid degradation and protein denaturation not characterized by routine approaches. This technique may expedite research into stroke and offer new approaches for neurodegenerative disorders. The results suggest that a good therapeutic strategy should include a mechanism that provides protective effect from brain swelling (edema) and neurotoxicity by scavenging the lipid peroxidation end products.
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Affiliation(s)
- Mohamed H M Ali
- Neurological Disorders Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Fazle Rakib
- Department of Chemistry and Earth Sciences, Qatar University, Doha, Qatar
| | - Essam M Abdelalim
- Diabetes Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar.,Department of Cytology and Histology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Andreas Limbeck
- Institute of Chemical Technologies and Analytics, Vienna University of Technology, Vienna, Austria
| | - Raghvendra Mall
- Qatar Computing Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Ehsan Ullah
- Qatar Computing Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Nasrin Mesaeli
- Weill Cornell Medicine-Qatar, Qatar Foundation, Doha, Qatar
| | - Donald McNaughton
- Centre for Biospectroscopy, School of Chemistry, Monash University, Clayton, VIC, Australia
| | - Tariq Ahmed
- Neurological Disorders Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Khalid Al-Saad
- Department of Chemistry and Earth Sciences, Qatar University, Doha, Qatar
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Relapsing-Remitting Multiple Sclerosis diagnosis from cerebrospinal fluids via Fourier transform infrared spectroscopy coupled with multivariate analysis. Sci Rep 2018; 8:1025. [PMID: 29348591 PMCID: PMC5773569 DOI: 10.1038/s41598-018-19303-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 12/27/2017] [Indexed: 11/17/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic, progressive, inflammatory and degenerative disease of central nervous system. Here, we aimed to develop a method for differential diagnosis of Relapsing-Remitting MS (RRMS) and clinically isolated syndrome (CIS) patients, as well as to identify CIS patients who will progress to RRMS, from cerebrospinal fluid (CSF) by infrared (IR) spectroscopy and multivariate analysis. Spectral analyses demonstrated significant differences in the molecular contents, especially in the lipids and Z conformation of DNA of CSF from CIS, CIS to RRMS transformed (TCIS) and RRMS groups. These changes enables the discrimination of diseased groups and controls (individuals with no neurological disease) from each other using hierarchical cluster and principal component analysis. Some CIS samples were consistently clustered in RRMS class, which may indicate that these CIS patients potentially will transform to RRMS over time. Z-DNA band at 795 cm−1 that is existent only in diseased groups and significant increase in carbonyl amount, decrease in amideI/amide II and lipid/protein ratios observed only for RRMS groups can be used as diagnostic biomarkers. The results of the present study shed light on the early diagnosis of RRMS by IR spectroscopy complemented with multivariate analysis tools.
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24
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Application of FTIR spectroscopy for traumatic axonal injury: a possible tool for estimating injury interval. Biosci Rep 2017; 37:BSR20170720. [PMID: 28659494 PMCID: PMC5567294 DOI: 10.1042/bsr20170720] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 06/07/2017] [Accepted: 06/28/2017] [Indexed: 01/03/2023] Open
Abstract
Traumatic axonal injury (TAI) is a progressive and secondary injury following
traumatic brain injury (TBI). Despite extensive investigations in the field of
forensic science and neurology, no effective methods are available to estimate
TAI interval between injury and death. In the present study, Fourier transform
IR (FTIR) spectroscopy with IR microscopy was applied to collect IR spectra in
the corpus callosum (CC) of rats subjected to TAI at 12, 24, and 72 h
post-injury compared with control animals. The classification amongst different
groups was visualized based on the acquired dataset using hierarchical cluster
analysis (HCA) and partial least square (PLS). Furthermore, the established PLS
models were used to predict injury interval of TAI in the unknown sample
dataset. The results showed that samples at different time points post-injury
were distinguishable from each other, and biochemical changes in protein, lipid,
and carbohydrate contributed to the differences. Then, the established PLS
models provided a satisfactory prediction of injury periods between different
sample groups in the external validation. The present study demonstrated the
great potential of FTIR-based PLS algorithm as an objective tool for estimating
injury intervals of TAI in the field of forensic science and neurology.
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25
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Biosorption of lead phosphates by lead-tolerant bacteria as a mechanism for lead immobilization. World J Microbiol Biotechnol 2017; 33:150. [DOI: 10.1007/s11274-017-2314-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Accepted: 06/16/2017] [Indexed: 11/26/2022]
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26
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Heiner Z, Gühlke M, Živanović V, Madzharova F, Kneipp J. Surface-enhanced hyper Raman hyperspectral imaging and probing in animal cells. NANOSCALE 2017; 9:8024-8032. [PMID: 28574069 DOI: 10.1039/c7nr02762a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Hyper Raman scattering, that is, spontaneous, two-photon excited Raman scattering, of organic molecules becomes strong when it occurs as surface-enhanced hyper Raman scattering (SEHRS), in the proximity of plasmonic nanostructures. Its advantages over one-photon excited surface-enhanced Raman scattering (SERS) include complementary vibrational information resulting from different selection rules, probing of very small focal volumes, and beneficial excitation with long wavelengths. Here, imaging of macrophage cells by SEHRS is demonstrated, using SEHRS labels consisting of silver nanoparticles and two different molecules, 2-naphthalenethiol and para-mercaptobenzoic acid, that are excited off-resonance. The vibrational signatures of the molecules are discriminated using hyperspectral analysis and provide information about the subcellular localization of the SEHRS probes. The SEHRS based hyperspectral imaging approach presented here uses principal component analysis (PCA) to localize the reporter molecules inside the cells and is augmented by hierarchical cluster analysis (HCA). The high sensitivity of SEHRS spectra with respect to small environmental changes can be utilized for mapping of physiological parameters in the endosomal system of the cells. This is illustrated by discussing the spatial distribution of endosomes of varying pH inside the cytosol.
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Affiliation(s)
- Zsuzsanna Heiner
- SALSA School of Analytical Sciences Adlershof, Humboldt-Universität zu Berlin, Albert-Einstein-Str. 5-9, 12489 Berlin, Germany and Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
| | - Marina Gühlke
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
| | - Vesna Živanović
- SALSA School of Analytical Sciences Adlershof, Humboldt-Universität zu Berlin, Albert-Einstein-Str. 5-9, 12489 Berlin, Germany and Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
| | - Fani Madzharova
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
| | - Janina Kneipp
- SALSA School of Analytical Sciences Adlershof, Humboldt-Universität zu Berlin, Albert-Einstein-Str. 5-9, 12489 Berlin, Germany and Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
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27
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Lasch P, Noda I. Two-Dimensional Correlation Spectroscopy for Multimodal Analysis of FT-IR, Raman, and MALDI-TOF MS Hyperspectral Images with Hamster Brain Tissue. Anal Chem 2017; 89:5008-5016. [PMID: 28365985 DOI: 10.1021/acs.analchem.7b00332] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hyperspectral imaging (HSI) techniques are useful for obtaining very detailed structural and compositional information from biomedical, pharmaceutical, or clinical samples, among others. The informative value of these methods can be further increased through the application of different HSI techniques and joint analysis of the data. However, interpretation and understanding of multimodal HSI have been impeded by difficulties in registration of the different HSI data sets and by the lack of integrative analysis concepts. Here, we introduce two-dimensional correlation spectroscopy (2DCOS) as a novel technique for jointly analyzing HSI data which allows one to obtain deeper insights into the chemistry of complex samples by decrypting auto- and heterospectral correlations that may exist between features of the different HSI data. The general workflow of 2DCOS analysis is demonstrated by HSI examples acquired from cryo-sections of hamster brain tissue using Fourier-transform infrared (FT-IR) microspectroscopy, confocal Raman microspectroscopy (CRM), and matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry. Multimodal hyperspectral image analysis by 2DCOS opens up new opportunities for spectral band assignments and thus the interpretation of structure-spectra and composition-spectra relationships. We foresee wide application potential for describing complex samples in various fields ranging from biomedicine to industrial applications.
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Affiliation(s)
- Peter Lasch
- ZBS6 "Proteomics and Spectroscopy", Robert Koch-Institute , Nordufer 20, D-13353 Berlin, Germany
| | - Isao Noda
- Department of Materials Science and Engineering, University of Delaware , Newark, Delaware 19716, United States
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28
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Inan Genç A, Gok S, Banerjee S, Severcan F. Valdecoxib Recovers the Lipid Composition, Order and Dynamics in Colon Cancer Cell Lines Independent of COX-2 Expression: An ATR-FTIR Spectroscopy Study. APPLIED SPECTROSCOPY 2017; 71:105-117. [PMID: 27354402 DOI: 10.1177/0003702816654164] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Prostanoids play an important role in a variety of physiological and pathophysiological processes including inflammation and cancer. The rate-limiting step in the prostanoid biosynthesis pathway is catalyzed by cyclooxygenases (COXs). Aberrant expression of the inducible isoform COX-2 plays a significant role in colon cancer initiation and progression. In this study, we have hypothesized that COX-2 specific inhibitors such as Valdecoxib (VLX), being highly hydrophobic, may alter biophysical properties of cellular lipids. In this study, COX-2 expressing (HT29) and COX-2 non-expressing (SW620) colon cancer cell lines were treated with VLX and examined using attenuated total reflection infrared spectroscopy. The results revealed that VLX treatment decreased lipid fluidity in the cells irrespective of COX-2 expression status and affected order parameters of the lipids in both cell lines. Cluster analysis also indicated that the spectral differences between the two cell lines are profound and could be successfully differentiated. Valdecoxib treatment could enhance the composition, order and dynamics of the lipids of colon cancer cells independently of its COX-2 inhibitory mechanism. Valdecoxib has therapeutic effects upon colon cancer, therefore it can be used as an adjuvant and/or chemopreventive agent for colon cancer.
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Affiliation(s)
- Aysun Inan Genç
- Department of Biological Sciences, Middle East Technical University, Turkey
| | - Seher Gok
- Department of Biological Sciences, Middle East Technical University, Turkey
| | - Sreeparna Banerjee
- Department of Biological Sciences, Middle East Technical University, Turkey
| | - Feride Severcan
- Department of Biological Sciences, Middle East Technical University, Turkey
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29
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FUJII S, SATO S, FUKUDA K, OKINAGA T, ARIYOSHI W, USUI M, NAKASHIMA K, NISHIHARA T, TAKENAKA S. Diagnosis of Periodontal Disease from Saliva Samples Using Fourier Transform Infrared Microscopy Coupled with Partial Least Squares Discriminant Analysis. ANAL SCI 2016; 32:225-31. [DOI: 10.2116/analsci.32.225] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Satoshi FUJII
- Department of Bioscience and Bioinformatics, Kyushu Institute of Technology
- Research Center for Bio-microsensing Technology, Kyushu Institute of Technology
| | - Shinobu SATO
- Research Center for Bio-microsensing Technology, Kyushu Institute of Technology
- Department of Applied Chemistry, Kyushu Institute of Technology
| | - Keisuke FUKUDA
- Research Center for Bio-microsensing Technology, Kyushu Institute of Technology
| | - Toshinori OKINAGA
- Division of Periodontology, Department of Oral Function, Kyushu Dental University, Department of Oral Function
| | - Wataru ARIYOSHI
- Division of Periodontology, Department of Oral Function, Kyushu Dental University, Department of Oral Function
| | - Michihiko USUI
- Division of Infections and Molecular Biology, Department of Health Promotion, Kyushu Dental University
| | - Keisuke NAKASHIMA
- Division of Infections and Molecular Biology, Department of Health Promotion, Kyushu Dental University
| | - Tatsuji NISHIHARA
- Division of Periodontology, Department of Oral Function, Kyushu Dental University, Department of Oral Function
| | - Shigeori TAKENAKA
- Research Center for Bio-microsensing Technology, Kyushu Institute of Technology
- Department of Applied Chemistry, Kyushu Institute of Technology
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30
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Dakhakhni TH, Raouf GA, Qusti SY. Evaluation of the toxic effect of the herbicide 2, 4-D on rat hepatocytes: an FT-IR spectroscopic study. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2015; 45:311-20. [DOI: 10.1007/s00249-015-1097-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Revised: 10/26/2015] [Accepted: 11/05/2015] [Indexed: 02/03/2023]
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31
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Hackett MJ, Aitken JB, El-Assaad F, McQuillan JA, Carter EA, Ball HJ, Tobin MJ, Paterson D, de Jonge MD, Siegele R, Cohen DD, Vogt S, Grau GE, Hunt NH, Lay PA. Mechanisms of murine cerebral malaria: Multimodal imaging of altered cerebral metabolism and protein oxidation at hemorrhage sites. SCIENCE ADVANCES 2015; 1:e1500911. [PMID: 26824064 PMCID: PMC4730848 DOI: 10.1126/sciadv.1500911] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 11/03/2015] [Indexed: 06/05/2023]
Abstract
Using a multimodal biospectroscopic approach, we settle several long-standing controversies over the molecular mechanisms that lead to brain damage in cerebral malaria, which is a major health concern in developing countries because of high levels of mortality and permanent brain damage. Our results provide the first conclusive evidence that important components of the pathology of cerebral malaria include peroxidative stress and protein oxidation within cerebellar gray matter, which are colocalized with elevated nonheme iron at the site of microhemorrhage. Such information could not be obtained previously from routine imaging methods, such as electron microscopy, fluorescence, and optical microscopy in combination with immunocytochemistry, or from bulk assays, where the level of spatial information is restricted to the minimum size of tissue that can be dissected. We describe the novel combination of chemical probe-free, multimodal imaging to quantify molecular markers of disturbed energy metabolism and peroxidative stress, which were used to provide new insights into understanding the pathogenesis of cerebral malaria. In addition to these mechanistic insights, the approach described acts as a template for the future use of multimodal biospectroscopy for understanding the molecular processes involved in a range of clinically important acute and chronic (neurodegenerative) brain diseases to improve treatment strategies.
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Affiliation(s)
- Mark J. Hackett
- School of Chemistry and Vibrational Spectroscopy Core Facility, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Jade B. Aitken
- School of Chemistry and Vibrational Spectroscopy Core Facility, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Fatima El-Assaad
- Vascular Immunology Unit, Bosch Institute and School of Medical Sciences, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - James A. McQuillan
- Molecular Immunopathology Unit, Bosch Institute and School of Medical Sciences, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Elizabeth A. Carter
- School of Chemistry and Vibrational Spectroscopy Core Facility, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Helen J. Ball
- Molecular Immunopathology Unit, Bosch Institute and School of Medical Sciences, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Mark J. Tobin
- Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria 3168, Australia
| | - David Paterson
- Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria 3168, Australia
| | - Martin D. de Jonge
- Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria 3168, Australia
| | - Rainer Siegele
- Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Lucas Heights, New South Wales 2234, Australia
| | - David D. Cohen
- Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Lucas Heights, New South Wales 2234, Australia
| | - Stefan Vogt
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Georges E. Grau
- Vascular Immunology Unit, Bosch Institute and School of Medical Sciences, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Nicholas H. Hunt
- Molecular Immunopathology Unit, Bosch Institute and School of Medical Sciences, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Peter A. Lay
- School of Chemistry and Vibrational Spectroscopy Core Facility, The University of Sydney, Sydney, New South Wales 2006, Australia
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32
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A molecular and biophysical comparison of macromolecular changes in imatinib-sensitive and imatinib-resistant K562 cells exposed to ponatinib. Tumour Biol 2015; 37:2365-78. [DOI: 10.1007/s13277-015-4015-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 08/28/2015] [Indexed: 12/22/2022] Open
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33
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Zhang J, Liu L, Mu J, Yang T, Zheng N, Dong H. Chemical Analysis in the Corpus Callosum Following Traumatic Axonal Injury using Fourier Transform Infrared Microspectroscopy: A Pilot Study. J Forensic Sci 2015; 60:1488-94. [PMID: 26272718 DOI: 10.1111/1556-4029.12871] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Revised: 11/27/2014] [Accepted: 11/30/2014] [Indexed: 11/29/2022]
Abstract
Evaluating traumatic axonal injury remains challenging in clinical and forensic sciences as its identification is difficult using routine diagnostic methods. This study used Fourier transform infrared microspectroscopy to detect TAI within the corpus callosum in an animal model. Protein conformational analysis revealed significantly increased β-sheet and β-turn contents paralleled by a decrease in α-helix content at 24 h postinjury, while the antiparallel β-sheet content was decreased at 12 h postinjury. Compared with the control group, the lipid/protein ratio was significantly reduced in all of the injured groups. At 24 h postinjury, there were increases in the olefinic=CH and CH3 group of lipids accompanied by the decreased CH2 group, but the results at 12 and 72 h were contrary to that at 24 h. Our study showed that FTIRM could differentiate injured from normal white matter at different time points following TBI via examination of these infrared spectral parameters.
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Affiliation(s)
- Ji Zhang
- Department of Forensic Medicine, Xi'an Jiaotong University, 74 West Yanta Road, Xi'an, Shanxi, China
| | - Liang Liu
- Department of Forensic Medicine, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, China
| | - Jiao Mu
- Department of Forensic Medicine, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, China
| | - Tiantong Yang
- Collaborative Innovation Center of Judicial Civilization, Key Laboratory of Evidence Science, China Univerisy of Political Science and Law, 116 Lugu Road, Beijing, China
| | - Na Zheng
- Department of Pathophysiology, Shenzhen Univeristy, 1688 Nanhai Road, Shenzhen, China
| | - Hongmei Dong
- Department of Forensic Medicine, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, China
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34
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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] [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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35
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Zhang J, Niu F, Dong H, Liu L, Li J, Li S. Characterization of protein alterations in damaged axons in the brainstem following traumatic brain injury using fourier transform infrared microspectroscopy: a preliminary study. J Forensic Sci 2015; 60:759-63. [PMID: 25773901 DOI: 10.1111/1556-4029.12743] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 06/04/2014] [Accepted: 06/08/2014] [Indexed: 01/09/2023]
Abstract
Axonal injury contributes greatly to neurological dysfunction following traumatic brain injury (TBI), but current histological diagnostic methods are limited in identifying the pathological profiles of injured axons and unable to provide an objective and accurate quantification. Fourier transform infrared microspectroscopy (FTIRM) has the ability to offer macromolecular bioinformatics of the tissues including biochemical composition and structure by calculating band absorption intensity. In this study, axonal injury in the brainstem of rats with traumatic brain injury at 72 h post-trauma, which was confirmed with beta-amyloid precursor protein (β-APP) immunostaining, was detected with FTIRM technique. The lower intensity of infrared absorbance under the amide I band corresponds strongly to the area of axonal injury, and further analysis of amide I band shows significant differences in protein conformation between injured and normal axons. The findings indicate that using FTIRM technique, the amide I band has potentials to be a infrared spectral marker of axonal injury.
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Affiliation(s)
- Ji Zhang
- Department of Forensic Medicine, Tongji Medical College of Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China
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36
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Hackett MJ, Britz CJ, Paterson PG, Nichol H, Pickering IJ, George GN. In situ biospectroscopic investigation of rapid ischemic and postmortem induced biochemical alterations in the rat brain. ACS Chem Neurosci 2015; 6:226-38. [PMID: 25350866 PMCID: PMC4372066 DOI: 10.1021/cn500157j] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
![]()
Rapid advances in
imaging technologies have pushed novel spectroscopic
modalities such as Fourier transform infrared spectroscopy (FTIR)
and X-ray absorption spectroscopy (XAS) at the sulfur K-edge to the
forefront of direct in situ investigation of brain biochemistry. However,
few studies have examined the extent to which sample preparation artifacts
confound results. Previous investigations using traditional analyses,
such as tissue dissection, homogenization, and biochemical assay,
conducted extensive research to identify biochemical alterations that
occur ex vivo during sample preparation. In particular, altered metabolism
and oxidative stress may be caused by animal death. These processes
were a concern for studies using biochemical assays, and protocols
were developed to minimize their occurrence. In this investigation,
a similar approach was taken to identify the biochemical alterations
that are detectable by two in situ spectroscopic methods (FTIR, XAS)
that occur as a consequence of ischemic conditions created during
humane animal killing. FTIR and XAS are well suited to study markers
of altered metabolism such as lactate and creatine (FTIR) and markers
of oxidative stress such as aggregated proteins (FTIR) and altered
thiol redox (XAS). The results are in accordance with previous investigations
using biochemical assays and demonstrate that the time between animal
death and tissue dissection results in ischemic conditions that alter
brain metabolism and initiate oxidative stress. Therefore, future
in situ biospectroscopic investigations utilizing FTIR and XAS must
take into consideration that brain tissue dissected from a healthy
animal does not truly reflect the in vivo condition, but rather reflects
a state of mild ischemia. If studies require the levels of metabolites
(lactate, creatine) and markers of oxidative stress (thiol redox)
to be preserved as close as possible to the in vivo condition, then
rapid freezing of brain tissue via decapitation into liquid nitrogen,
followed by chiseling the brain out at dry ice temperatures is required.
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Affiliation(s)
- Mark J. Hackett
- Molecular
and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Carter J. Britz
- Department
of Anatomy and Cell Biology, University of Saskatchewan, 107
Wiggins Rd, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Phyllis G. Paterson
- College
of Pharmacy and Nutrition, University of Saskatchewan, D Wing Health Sciences, 107 Wiggins Road, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Helen Nichol
- Department
of Anatomy and Cell Biology, University of Saskatchewan, 107
Wiggins Rd, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Ingrid J. Pickering
- Molecular
and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Graham N. George
- Molecular
and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, Saskatchewan S7N 5E2, Canada
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Kucuk Baloglu F, Garip S, Heise S, Brockmann G, Severcan F. FTIR imaging of structural changes in visceral and subcutaneous adiposity and brown to white adipocyte transdifferentiation. Analyst 2015; 140:2205-2214. [DOI: 10.1039/c4an02008a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
FTIR microspectroscopy coupled with UCP1 immunohistological staining enables the detection of obesity-related molecular alterations and transdifferentiations in visceral and subcutaneous adipose tissues in spontaneously obese mice lines.
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Affiliation(s)
- Fatma Kucuk Baloglu
- Department of Biological Sciences
- Middle East Technical University
- Ankara
- Turkey
| | - Sebnem Garip
- Department of Medical Biochemistry
- Faculty of Medicine
- Istanbul Kemerburgaz University
- Istanbul
- Turkey
| | - Sebastian Heise
- Department of Breeding Biology and Molecular Genetics
- Humboldt Universitatzu Berlin
- Berlin
- Germany
| | - Gudrun Brockmann
- Department of Breeding Biology and Molecular Genetics
- Humboldt Universitatzu Berlin
- Berlin
- Germany
| | - Feride Severcan
- Department of Biological Sciences
- Middle East Technical University
- Ankara
- Turkey
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38
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Chwiej J, Skoczen A, Janeczko K, Kutorasinska J, Matusiak K, Figiel H, Dumas P, Sandt C, Setkowicz Z. The biochemical changes in hippocampal formation occurring in normal and seizure experiencing rats as a result of a ketogenic diet. Analyst 2015; 140:2190-204. [DOI: 10.1039/c4an01857e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, ketogenic diet-induced biochemical changes occurring in normal and epileptic hippocampal formations were compared.
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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
| | | | - Justyna Kutorasinska
- 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
| | - Henryk Figiel
- AGH-University of Science and Technology
- Faculty of Physics and Applied Computer Science
- Krakow
- Poland
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39
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Vitamin A deficiency induces structural and functional alterations in the molecular constituents of the rat hippocampus. Br J Nutr 2014; 113:45-55. [DOI: 10.1017/s0007114514003432] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
To date, no structural study has been carried out on the effects of vitamin A deficiency (VAD) on hippocampal macromolecules. Therefore, in the present study, the effect of dietary VAD on the structure, content and function of rat hippocampal molecules was investigated using Fourier transform IF spectroscopy. Male Wistar rats were randomly divided into three groups: an experimental group maintained on a vitamin A-deficient liquid diet (VAD,n7); a control group maintained on a vitamin A-supplemented liquid diet (CON,n9); a pure control group maintained on standard solid laboratory chow (PC,n7). The PC group was included in the study to ensure that the usage of liquid diet did not influence the outcomes of VAD. Both the CON and PC groups were successfully discriminated from the VAD group by principal component analysis and hierarchical cluster analysis. The spectral analysis indicated a significant decrease in the contents of saturated and unsaturated lipids, cholesteryl esters, TAG and nucleic acids in the VAD group when compared with the CON group (P≤ 0·05). In addition, a significant decrease in membrane fluidity and a significant increase in lipid order (e.g. acyl chain flexibility) were observed in the VAD group (P≤ 0·001). The results of the artificial neural network analysis revealed a significant decrease in the α-helix structure content and a significant increase in the turn and random coil structure contents, indicating protein denaturation, in the VAD group when compared with the CON and PC groups (P≤ 0·05). Dietary exclusion of vitamin A for 3 months apparently had an adverse impact on compositional, structural and dynamical parameters. These changes can be due to increased oxidative stress, confirming the antioxidant protection provided by vitamin A when used as a dietary supplement at low-to-moderate doses.
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40
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Aksoy C, Kaya FA, Kuşkonmaz BB, Uçkan D, Severcan F. Structural investigation of donor age effect on human bone marrow mesenchymal stem cells: FTIR spectroscopy and imaging. AGE (DORDRECHT, NETHERLANDS) 2014; 36:9691. [PMID: 25081108 PMCID: PMC4150902 DOI: 10.1007/s11357-014-9691-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2013] [Accepted: 07/17/2014] [Indexed: 06/03/2023]
Abstract
Stem cell studies hold enormous potential for development of new therapies for tissue regeneration and repair. Bone marrow mesenchymal stem cells (BM-MSCs) can differentiate into a variety of non-hematopoietic tissues and contribute maintenance of healthy hematopoiesis by providing supportive cellular microenvironment into BM. Here, we investigated age-related differences in BM-MSCs by using attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy and FTIR imaging together with hierarchical clustering as a novel methods to clarify global alterations in the structure and function of macromolecules in characterized BM-MSCs of different aged donors. The results may contribute to identification of age-related new molecular marker(s) to determine the effects of donor age on MSCs. The spectral results reflected that there were significant increases in the concentration of saturated lipids, proteins, glycogen, and nucleic acids in children and adolescent group BM-MSCs when compared to the infants and early and mid adults. The concentration of mentioned macromolecules in adult (early and mid) BM-MSCs were significantly lower than the concentrations in the children and adolescents. These results were attributed to the increase in the proliferation activity in younger BM-MSCs. The distribution of macromolecules into the cells was shown as in the form of chemical maps by FTIR imaging, and the results are in agreement with the ATR-FTIR spectroscopy results. The cellular activity degree was determined by the thiazolyl blue tetrazolium bromide (MTT) proliferation assay to support ATR-FTIR spectroscopy results. BM-MSCs of five different age groups were discriminated by making the hierarchical cluster analysis where the spectral data according to alterations in structure and composition of macromolecules were considered.
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Affiliation(s)
- Ceren Aksoy
- />Department of Biotechnology, Middle East Technical University, 06800 Ankara, Turkey
| | - Fatima Aerts Kaya
- />Pedi-Stem Center for Stem Cell Research and Development, Hacettepe University, 06100 Ankara, Turkey
| | - Bülent Barış Kuşkonmaz
- />Divison of Hematology, Department of Pediatrics, Hacettepe University, 06100 Ankara, Turkey
| | - Duygu Uçkan
- />Pedi-Stem Center for Stem Cell Research and Development, Hacettepe University, 06100 Ankara, Turkey
- />Divison of Hematology, Department of Pediatrics, Hacettepe University, 06100 Ankara, Turkey
| | - Feride Severcan
- />Department of Biological Sciences, Middle East Technical University, 06800 Ankara, Turkey
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41
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Hackett MJ, Borondics F, Brown D, Hirschmugl C, Smith SE, Paterson PG, Nichol H, Pickering IJ, George GN. Subcellular biochemical investigation of purkinje neurons using synchrotron radiation fourier transform infrared spectroscopic imaging with a focal plane array detector. ACS Chem Neurosci 2013; 4:1071-80. [PMID: 23638613 DOI: 10.1021/cn4000346] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Coupling Fourier transform infrared spectroscopy with focal plane array detectors at synchrotron radiation sources (SR-FTIR-FPA) has provided a rapid method to simultaneously image numerous biochemical markers in situ at diffraction limited resolution. Since cells and nuclei are well resolved at this spatial resolution, a direct comparison can be made between FTIR functional group images and the histology of the same section. To allow histological analysis of the same section analyzed with infrared imaging, unfixed air-dried tissue sections are typically fixed (after infrared spectroscopic analysis is completed) via immersion fixation. This post fixation process is essential to allow histological staining of the tissue section. Although immersion fixation is a common practice in this filed, the initial rehydration of the dehydrated unfixed tissue can result in distortion of subcellular morphology and confound correlation between infrared images and histology. In this study, vapor fixation, a common choice in other research fields where postfixation of unfixed tissue sections is required, was employed in place of immersion fixation post spectroscopic analysis. This method provided more accurate histology with reduced distortions as the dehydrated tissue section is fixed in vapor rather than during rehydration in an aqueous fixation medium. With this approach, accurate correlation between infrared images and histology of the same section revealed that Purkinje neurons in the cerebellum are rich in cytosolic proteins and not depleted as once thought. In addition, we provide the first direct evidence of intracellular lactate within Purkinje neurons. This highlights the significant potential for future applications of SR-FTIR-FPA imaging to investigate cellular lactate under conditions of altered metabolic demand such as increased brain activity and hypoxia or ischemia.
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Affiliation(s)
- Mark J. Hackett
- Molecular and Environmental Sciences Group, Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon,
Saskatchewan S7N5E2, Canada
| | | | - Devin Brown
- Department of Anatomy and Cell Biology, University of Saskatchewan, 107 Wiggins Rd, Saskatoon,
Saskatchewan S7N5E5, Canada
| | - Carol Hirschmugl
- Department of Physics, University of Wisconsin—Milwaukee, Milwaukee,
Wisconsin 53211, United States
| | - Shari E. Smith
- College of Pharmacy and Nutrition, University of Saskatchewan, 110 Science Place, Saskatoon, Saskatchewn S7N5C9, Canada
| | - Phyllis G. Paterson
- College of Pharmacy and Nutrition, University of Saskatchewan, 110 Science Place, Saskatoon, Saskatchewn S7N5C9, Canada
| | - Helen Nichol
- Department of Anatomy and Cell Biology, University of Saskatchewan, 107 Wiggins Rd, Saskatoon,
Saskatchewan S7N5E5, Canada
| | - Ingrid J. Pickering
- Molecular and Environmental Sciences Group, Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon,
Saskatchewan S7N5E2, Canada
| | - Graham N. George
- Molecular and Environmental Sciences Group, Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon,
Saskatchewan S7N5E2, Canada
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42
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Amifostine, a radioprotectant agent, protects rat brain tissue lipids against ionizing radiation induced damage: an FTIR microspectroscopic imaging study. Arch Biochem Biophys 2012; 520:67-73. [PMID: 22402174 DOI: 10.1016/j.abb.2012.02.012] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Revised: 02/02/2012] [Accepted: 02/17/2012] [Indexed: 02/06/2023]
Abstract
Amifostine is the only approved radioprotective agent by FDA for reducing the damaging effects of radiation on healthy tissues. In this study, the protective effect of amifostine against the damaging effects of ionizing radiation on the white matter (WM) and grey matter (GM) regions of the rat brain were investigated at molecular level. Sprague-Dawley rats, which were administered amifostine or not, were whole-body irradiated at a single dose of 800 cGy, decapitated after 24 h and the brain tissues of these rats were analyzed using Fourier transform infrared microspectroscopy (FTIRM). The results revealed that the total lipid content and CH(2) groups of lipids decreased significantly and the carbonyl esters, olefinic=CH and CH(3) groups of lipids increased significantly in the WM and GM after exposure to ionizing radiation, which could be interpreted as a result of lipid peroxidation. These changes were more prominent in the WM of the brain. The administration of amifostine before ionizing radiation inhibited the radiation-induced lipid peroxidation in the brain. In addition, this study indicated that FTIRM provides a novel approach for monitoring ionizing radiation induced-lipid peroxidation and obtaining different molecular ratio images can be used as biomarkers to detect lipid peroxidation in biological systems.
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43
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Caine S, Heraud P, Tobin MJ, McNaughton D, Bernard CC. The application of Fourier transform infrared microspectroscopy for the study of diseased central nervous system tissue. Neuroimage 2012; 59:3624-40. [DOI: 10.1016/j.neuroimage.2011.11.033] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Revised: 10/20/2011] [Accepted: 11/09/2011] [Indexed: 12/13/2022] Open
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44
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Bambery KR, Wood BR, McNaughton D. Resonant Mie scattering (RMieS) correction applied to FTIR images of biological tissue samples. Analyst 2012; 137:126-32. [DOI: 10.1039/c1an15628d] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Synchrotron FTIR Microspectroscopy Study of the Striatum in 6-Hydroxydopamine Rat Model of Parkinson's Disease. ACTA ACUST UNITED AC 2012. [DOI: 10.1155/2012/176937] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In the present study, synchrotron-based Fourier transform-infrared (FTIR) microspectroscopy is used to analyze the biochemical composition of the striatal neurons in normal and Parkinson's disease (PD) rat brain tissues. The rat model of Parkinson's disease is established by destroying the nigrostriatal pathway with 6-hydroxydopamine (6-OHDA). The detailed spectral analyses show the significant changes of cellular compositions such as lipids, and proteins in the striatal neurons of 6-OHDA-lesioned PD rats with respect to control neurons. As a result, the intensities of spectral absorption assigned to lipid of the striatal neurons in PD rats are higher than in control animals. Furthermore, the unsaturation levels of phospholipids decrease in PD neurons with respect to control neurons, indicating a high level of lipid peroxidation. The analysis of protein secondary structure shows the significantly higher ratio ofβ-sheet in PD neurons compared to that of control neurons, suggesting that the abnormal protein structure occurs before their morphological appearances in the striatal neurons. These findings suggest that the biochemical changes in neurons could be involved in the pathogenesis of Parkinson's disease.
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46
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Histopathology mapping of biochemical changes in myocardial infarction by Fourier transform infrared spectral imaging. Forensic Sci Int 2011; 207:e34-9. [DOI: 10.1016/j.forsciint.2010.12.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2009] [Revised: 10/12/2010] [Accepted: 12/12/2010] [Indexed: 01/14/2023]
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47
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Didonna A, Vaccari L, Bek A, Legname G. Infrared microspectroscopy: a multiple-screening platform for investigating single-cell biochemical perturbations upon prion infection. ACS Chem Neurosci 2011; 2:160-74. [PMID: 22778865 DOI: 10.1021/cn1000952] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Accepted: 12/08/2010] [Indexed: 12/15/2022] Open
Abstract
Prion diseases are a group of fatal neurodegenerative disorders characterized by the accumulation of prions in the central nervous system. The pathogenic prion (PrP(Sc)) possesses the capability to convert the host-encoded cellular isoform of the prion protein, PrP(C), into nascent PrP(Sc). The present work aims at providing novel insight into cellular response upon prion infection evidenced by synchrotron radiation infrared microspectroscopy (SR-IRMS). This non-invasive, label-free analytical technique was employed to investigate the biochemical perturbations undergone by prion infected mouse hypothalamic GT1-1 cells at the cellular and subcellular level. A decrement in total cellular protein content upon prion infection was identified by infrared (IR) whole-cell spectra and validated by bicinchoninic acid assay and single-cell volume analysis by atomic force microscopy (AFM). Hierarchical cluster analysis (HCA) of IR data discriminated between infected and uninfected cells and allowed to deduce an increment of lysosomal bodies within the cytoplasm of infected GT1-1 cells, a hypothesis further confirmed by SR-IRMS at subcellular spatial resolution and fluorescent microscopy. The purpose of this work, therefore, consists of proposing IRMS as a powerful multiscreening platform, drawing on the synergy with conventional biological assays and microscopy techniques in order to increase the accuracy of investigations performed at the single-cell level.
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Affiliation(s)
- Alessandro Didonna
- Laboratory of Prion Biology, Neurobiology Sector, Scuola Internazionale Superiore di Studi Avanzati (SISSA), via Bonomea 265, I-34136 Trieste, Italy
| | - Lisa Vaccari
- ELETTRA Synchrotron Light Laboratory, S.S. 14 Km. 163.5, 34149 Basovizza, Trieste, Italy
| | - Alpan Bek
- CBM S.c.r.l., Consorzio per il Centro di Biomedicina Molecolare—Center for Molecular Biomedicine, Area Science Park—Basovizza SS 14, Km 163.5, I-34149 Trieste (TS), Italy
| | - Giuseppe Legname
- Laboratory of Prion Biology, Neurobiology Sector, Scuola Internazionale Superiore di Studi Avanzati (SISSA), via Bonomea 265, I-34136 Trieste, Italy
- ELETTRA Synchrotron Light Laboratory, S.S. 14 Km. 163.5, 34149 Basovizza, Trieste, Italy
- CBM S.c.r.l., Consorzio per il Centro di Biomedicina Molecolare—Center for Molecular Biomedicine, Area Science Park—Basovizza SS 14, Km 163.5, I-34149 Trieste (TS), Italy
- Italian Institute of Technology, SISSA Unit, Via Bonomea 265, 34136 Trieste, Italy
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48
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Bozkurt O, Severcan M, Severcan F. Diabetes induces compositional, structural and functional alterations on rat skeletal soleus muscle revealed by FTIR spectroscopy: a comparative study with EDL muscle. Analyst 2010; 135:3110-9. [PMID: 20967384 DOI: 10.1039/c0an00542h] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diabetes Mellitus (DM) is a metabolic disorder, characterized by abnormally high blood glucose levels due to decreased secretion or effectiveness in function of insulin. Having a role in carbohydrate and lipid metabolism, skeletal muscle is affected by the absence of insulin in diabetic conditions. This current study reports the application of Fourier transform infrared (FTIR) spectroscopy in the determination of macromolecular alterations in streptozotocin (STZ)-induced diabetic rat skeletal Soleus (SOL) muscles, which highlight the promise of this technique in medical research. The results revealed that DM induced several alterations in macromolecular content and structure of slow-contracting SOL muscles. In diabetic SOL muscles, a decrease in the content of lipids, proteins and nucleic acids together with an increase in lipid order was observed. The decrease in the level of unsaturation and acyl chain length of lipids demonstrated the increased lipid peroxidation in DM. There were alterations in protein secondary structure in DM with a decrease in α-helix and β-sheet content of proteins, whereas the content of aggregated β-strands increased, which is generally seen when proteins denature. Besides, the integrity of collagen molecules was found to be decreased, demonstrating the alterations in its triple helical structure in diabetic muscles. Furthermore, the same alterations mentioned above were also observed in diabetic fast-contracting Extensor Digitorum Longus (EDL) muscles. However, having a high content of mitochondria and relying on an oxidative pathway, SOL muscle was found to be more affected by DM.
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Affiliation(s)
- Ozlem Bozkurt
- Department of Biological Sciences, Middle East Technical University, 06531 Ankara, Turkey
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49
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Vileno B, Jeney S, Sienkiewicz A, Marcoux PR, Miller LM, Forró L. Evidence of lipid peroxidation and protein phosphorylation in cells upon oxidative stress photo-generated by fullerols. Biophys Chem 2010; 152:164-9. [PMID: 20970241 DOI: 10.1016/j.bpc.2010.09.004] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Revised: 09/18/2010] [Accepted: 09/18/2010] [Indexed: 10/19/2022]
Abstract
An oxidative stress (OS) state is characterized by the generation of Reactive Oxygen Species (ROS) in a biological system above its capacity to counterbalance them [1]. Exposure to OS induces the accumulation of intracellular ROS, which in turn causes cell damage in the form of protein, lipid, and/or DNA oxidations. Such conditions are believed to be linked to numerous diseases or simply to the ageing of tissues. However, the controlled generation of ROS via photosensitizing drugs or photosensitizers (PS) is now widely used to treat various tumors and other infections [2,3]. Here we present a method to track the chemical changes in a cell after exposure to oxidative stress. OS is induced via fullerols, a custom made water soluble derivative of fullerene (C(60)), under visible light illumination. Synchrotron-based Fourier Transform InfraRed Microspectroscopy (S-FTIRM) was used to assess the chemical makeup of single cells after OS exposure. Consequently, a chemical fingerprint of oxidative stress was probed in this study through an increase in the bands linked with lipid peroxidation (carbonyl ester group at 1740 cm(-1)) and protein phosphorylation (asymmetric phosphate stretching at 1240 cm(-1)).
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Affiliation(s)
- B Vileno
- NN Group, Institute of Physics of Condensed Matter, School of Basic Sciences (Station 3), Swiss Federal Institute of Technology (EPFL), CH-1015 Lausanne, Switzerland.
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50
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Chwiej J, Dulinska J, Janeczko K, Dumas P, Eichert D, Dudala J, Setkowicz Z. Synchrotron FTIR micro-spectroscopy study of the rat hippocampal formation after pilocarpine-evoked seizures. J Chem Neuroanat 2010; 40:140-7. [PMID: 20362662 DOI: 10.1016/j.jchemneu.2010.03.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2010] [Revised: 03/26/2010] [Accepted: 03/26/2010] [Indexed: 12/13/2022]
Abstract
In the present work, synchrotron radiation Fourier transform infrared (SRFTIR) micro-spectroscopy and imaging were used for topographic and semi-quantitative biochemical analysis of rat brain tissue in cases of pilocarpine-induced epilepsy. The tissue samples were analyzed with a beam defined by small apertures and spatial resolution steps of 10 microm which allowed us to probe the selected cellular layers of hippocampal formation. Raster scanning of the samples has generated 2D chemical cartographies revealing the distribution of proteins, lipids and nucleic acids. Spectral analysis has shown changes in the saturation level of phospholipids and relative secondary structure of proteins. Special interest was put in the analysis of two areas of the hippocampal formation (sector 3 of the Ammon's horn, CA3 and dentate gyrus, DG) in which elemental abnormalities were observed during our previous studies. Statistically significant increase in the saturation level of phospholipids (increased ratio of the absorption intensities at around 2921 and 2958 cm(-1)) as well as conformational changes of proteins (beta-type structure discrepancies as shown by the increased ratio of the absorbance intensities at around 1631 and 1657 cm(-1) as well as the ratio of the absorbance at 1548 and 1657 cm(-1)) were detected in pyramidal cells of CA3 area as well as in the multiform and molecular layers of DG. The findings presented here suggest that abnormalities in the protein secondary structure and increases in the level of phospholipid saturation could be involved in mechanisms of neurodegenerative changes following the oxidative stress evoked in brain areas affected by pilocarpine-induced seizures.
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Affiliation(s)
- J Chwiej
- Faculty of Physics and Applied Computer Science, AGH-University of Science and Technology, Krakow, Poland.
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