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Augustyniak K, Lesniak M, Latka H, Golan MP, Kubiak JZ, Zdanowski R, Malek K. Adipose-derived mesenchymal stem cells' adipogenesis chemistry analyzed by FTIR and Raman metrics. J Lipid Res 2024; 65:100573. [PMID: 38844049 DOI: 10.1016/j.jlr.2024.100573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/08/2024] [Accepted: 05/28/2024] [Indexed: 07/01/2024] Open
Abstract
The full understanding of molecular mechanisms of cell differentiation requires a holistic view. Here we combine label-free FTIR and Raman hyperspectral imaging with data mining to detect the molecular cell composition enabling noninvasive monitoring of cell differentiation and identifying biochemical heterogeneity. Mouse adipose-derived mesenchymal stem cells (AD-MSCs) undergoing adipogenesis were followed by Raman and FT-IR imaging, Oil Red, and immunofluorescence. A workflow of the data analysis (IRRSmetrics4stem) was designed to identify spectral predictors of adipogenesis and test machine-learning (ML) methods (hierarchical clustering, PCA, PLSR) for the control of the AD-MSCs differentiation degree. IRRSmetrics4stem provided insights into the chemism of adipogenesis. With single-cell tracking, we established IRRS metrics for lipids, proteins, and DNA variations during AD-MSCs differentiation. The over 90% predictive efficiency of the selected ML methods proved the high sensitivity of the IRRS metrics. Importantly, the IRRS metrics unequivocally recognize a switch from proliferation to differentiation. This study introduced a new bioassay identifying molecular markers indicating molecular transformations and delivering rapid and machine learning-based monitoring of adipogenesis that can be relevant to other differentiation processes. Thus, we introduce a novel, rapid, machine learning-based bioassay to identify molecular markers of adipogenesis. It can be relevant to identification of differentiation-related molecular processes in other cell types, and beyond the cell differentiation including progression of different cellular pathophysiologies reconstituted in vitro.
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Affiliation(s)
- Karolina Augustyniak
- Department of Chemical Physics, Faculty of Chemistry, Jagiellonian University in Krakow, Krakow, Poland; Doctoral School of Exact and Natural Sciences, Jagiellonian University in Krakow, Krakow, Poland
| | - Monika Lesniak
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine - National Research Institute, Warszawa, Poland
| | - Hubert Latka
- Department of Chemical Physics, Faculty of Chemistry, Jagiellonian University in Krakow, Krakow, Poland
| | - Maciej P Golan
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine - National Research Institute, Warszawa, Poland; Institute of Psychology, The Maria Grzegorzewska University, Warsaw, Poland
| | - Jacek Z Kubiak
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine - National Research Institute, Warszawa, Poland; Dynamics and Mechanics of Epithelia Group, Institute of Genetics and Development of Rennes (IGDR), Faculty of Medicine, University of Rennes, CNRS, UMR 6290, Rennes, France.
| | - Robert Zdanowski
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine - National Research Institute, Warszawa, Poland.
| | - Kamilla Malek
- Department of Chemical Physics, Faculty of Chemistry, Jagiellonian University in Krakow, Krakow, Poland.
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Muhieddine A, Fournier N, Dakroub H, Assi A, Paul JL, Tfayli A, Chaminade P, Tfaili S. In vitro Raman imaging of human macrophages: Impact of eicosapentaenoic acid on the hydrolysis of cholesterol esters in lipid droplets. Talanta 2023; 256:124314. [PMID: 36753884 DOI: 10.1016/j.talanta.2023.124314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/27/2023] [Accepted: 01/28/2023] [Indexed: 02/05/2023]
Abstract
Atherosclerosis - a cardiovascular disease and the primary cause of morbidity and mortality in industrialized countries - is linked to the existence of atherosclerotic plaques characterized by cholesterol-laden macrophages called foam cells. In these cells, cholesterol esters associated with triglycerides form lipid droplets (LD). The only way to remove this excess cholesterol is to promote free cholesterol efflux from macrophages to specific acceptors. It has been shown recently that eicosapentaenoic acid (EPA) reduces efflux on cholesterol-loaded THP-1 macrophages in vitro due to decreased cholesterol esters hydrolysis. These in vitro observations could reflect EPA's difficulty in facilitating in vivo the antiatherogenic process of cholesterol efflux within advanced atherosclerotic plaques. This work aims to study in vitro the impact of EPA on cholesterol esters hydrolysis in the LD of human THP-1 macrophages using vibrational Raman microspectroscopy. For this, we used deuterated EPA and recorded spectral images at the cell scale after different hydrolysis times. RESULTS: showed that EPA is involved in forming triglycerides and phospholipids of LD. Hydrolysis kinetics slowed down after 24 h, triglycerides increased, and the intensity of the characteristic bands linked to deuteration decreased. The size of LD without hydrolysis (H0) is higher than that after 24 h (H1) or 48 h (H2) of hydrolysis. The size decrease is sharper when going from H0 to H1 than from H1 to H2. Principal component analysis illustrated data' projection according to the cellular compartment, the hydrolysis time, and the supplementation of the medium.
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Affiliation(s)
- Ali Muhieddine
- Lip(Sys)(2) - Chimie Analytique Pharmaceutique, UFR Pharmacie, Université Paris-Saclay, Orsay, France
| | - Natalie Fournier
- Lip(Sys)(2) - Equipe de Biologie, UFR Pharmacie, Université Paris-Saclay, Orsay, France
| | - Hani Dakroub
- Lip(Sys)(2) - Equipe de Biologie, UFR Pharmacie, Université Paris-Saclay, Orsay, France
| | - Ali Assi
- Lip(Sys)(2) - Chimie Analytique Pharmaceutique, UFR Pharmacie, Université Paris-Saclay, Orsay, France
| | - Jean-Louis Paul
- Lip(Sys)(2) - Equipe de Biologie, UFR Pharmacie, Université Paris-Saclay, Orsay, France
| | - Ali Tfayli
- Lip(Sys)(2) - Chimie Analytique Pharmaceutique, UFR Pharmacie, Université Paris-Saclay, Orsay, France
| | - Pierre Chaminade
- Lip(Sys)(2) - Chimie Analytique Pharmaceutique, UFR Pharmacie, Université Paris-Saclay, Orsay, France
| | - Sana Tfaili
- Lip(Sys)(2) - Chimie Analytique Pharmaceutique, UFR Pharmacie, Université Paris-Saclay, Orsay, France.
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Pacia MZ, Chorazy N, Sternak M, Fels B, Pacia M, Kepczynski M, Kusche-Vihrog K, Chlopicki S. Rac1 regulates lipid droplets formation, nanomechanical, and nanostructural changes induced by TNF in vascular endothelium in the isolated murine aorta. Cell Mol Life Sci 2022; 79:317. [PMID: 35622139 PMCID: PMC9142475 DOI: 10.1007/s00018-022-04362-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/21/2022] [Accepted: 05/09/2022] [Indexed: 11/24/2022]
Abstract
Endothelial inflammation is recognized as a critical condition in the development of cardiovascular diseases. TNF-induced inflammation of endothelial cells is linked to the formation of lipid droplets, augmented cortical stiffness, and nanostructural endothelial plasma membrane remodelling, but the insight into the mechanism linking these responses is missing. In the present work, we determined the formation of lipid droplets (LDs), nanomechanical, and nanostructural responses in the model of TNF-activated vascular inflammation in the isolated murine aorta using Raman spectroscopy, fluorescence imaging, atomic force microscopy (AFM), and scanning electron microscopy (SEM). We analysed the possible role of Rac1, a major regulator of cytoskeletal organization, in TNF-induced vascular inflammation. We demonstrated that the formation of LDs, polymerization of F-actin, alterations in cortical stiffness, and nanostructural protuberances in endothelial plasma membrane were mediated by the Rac1. In particular, we revealed a significant role for Rac1 in the regulation of the formation of highly unsaturated LDs formed in response to TNF. Inhibition of Rac1 also downregulated the overexpression of ICAM-1 induced by TNF, supporting the role of Rac1 in vascular inflammation. Altogether, our results demonstrate that LDs formation, an integral component of vascular inflammation, is activated by Rac1 that also regulates nanomechanical and nanostructural alterations linked to vascular inflammation.
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Affiliation(s)
- Marta Z Pacia
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348, Krakow, Poland.
| | - Natalia Chorazy
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348, Krakow, Poland
| | - Magdalena Sternak
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348, Krakow, Poland
| | - Benedikt Fels
- Institute of Physiology, University of Luebeck, 160 Ratzeburger Allee, 23562, Luebeck, Germany
- DZHK (German Research Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
| | - Michal Pacia
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387, Krakow, Poland
| | - Mariusz Kepczynski
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387, Krakow, Poland
| | - Kristina Kusche-Vihrog
- Institute of Physiology, University of Luebeck, 160 Ratzeburger Allee, 23562, Luebeck, Germany
- DZHK (German Research Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348, Krakow, Poland
- Chair of Pharmacology, Jagiellonian University, 16 Grzegorzecka Str., 31-531, Krakow, Poland
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Borek-Dorosz A, Pieczara A, Czamara K, Stojak M, Matuszyk E, Majzner K, Brzozowski K, Bresci A, Polli D, Baranska M. What is the ability of inflamed endothelium to uptake exogenous saturated fatty acids? A proof-of-concept study using spontaneous Raman, SRS and CARS microscopy. Cell Mol Life Sci 2022; 79:593. [PMID: 36380212 PMCID: PMC9666316 DOI: 10.1007/s00018-022-04616-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/16/2022] [Accepted: 10/27/2022] [Indexed: 11/17/2022]
Abstract
Endothelial cells (EC) in vivo buffer and regulate the transfer of plasma fatty acid (FA) to the underlying tissues. We hypothesize that inflammation could alter the functionality of the EC, i.e., their capacity and uptake of different FA. The aim of this work is to verify the functionality of inflamed cells by analyzing their ability to uptake and accumulate exogenous saturated FA. Control and inflammatory human microvascular endothelial cells stimulated in vitro with two deuterium-labeled saturated FA (D-FA), i.e., palmitic (D31-PA) and myristic (D27-MA) acids. Cells were measured both by spontaneous and stimulated Raman imaging to extract detailed information about uptaken FA, whereas coherent anti-Stokes Raman scattering and fluorescence imaging showed the global content of FA in cells. Additionally, we employed atomic force microscopy to obtain a morphological image of the cells. The results indicate that the uptake of D-FA in inflamed cells is dependent on their concentration and type. Cells accumulated D-FA when treated with a low concentration, and the effect was more pronounced for D27-MA, in normal cells, but even more so, in inflamed cells. In the case of D31-PA, a slightly increased uptake was observed for inflamed cells when administered at higher concentration. The results provide a better understanding of the EC inflammation and indicate the impact of the pathological state of the EC on their capacity to buffer fat. All the microscopic methods used showed complementarity in the analysis of FA uptake by EC, but each method recognized this process from a different perspective.
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Affiliation(s)
| | - Anna Pieczara
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland
| | - Krzysztof Czamara
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland
| | - Marta Stojak
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland
| | - Ewelina Matuszyk
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland
| | - Katarzyna Majzner
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387 Krakow, Poland ,Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland
| | - Krzysztof Brzozowski
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387 Krakow, Poland
| | - Arianna Bresci
- Physics Department, Politecnico di Milano, Piazza Leonardo da Vinci, 32, 20133 Milan, Italy
| | - Dario Polli
- Physics Department, Politecnico di Milano, Piazza Leonardo da Vinci, 32, 20133 Milan, Italy ,Institute for Photonics and Nanotechnology at CNR (CNR-IFN), Piazza Leonardo da Vinci, 32, 20133 Milan, Italy
| | - Malgorzata Baranska
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387 Krakow, Poland ,Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland
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Matuszyk E, Adamczyk A, Radwan B, Pieczara A, Szcześniak P, Mlynarski J, Kamińska K, Baranska M. Multiplex Raman imaging of organelles in endothelial cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 255:119658. [PMID: 33744837 DOI: 10.1016/j.saa.2021.119658] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 02/26/2021] [Accepted: 02/28/2021] [Indexed: 06/12/2023]
Abstract
Raman imaging using molecular reporters is a relatively new approach in subcellular investigations. It enables the visualization of organelles in cells with better selectivity and sensitivity compared to the label-free approach. Essentially Raman reporters possess in their structure an alkyne molecular group that can be selectively identified in the spectral region silent for biomolecules, hence facilitate the localization of individual organelles. The aim of this work is to visualize the main cell organelles in endothelial cells (HMEC-1) using established reporters (EdU and MitoBADY), but also to test a new one, namely falcarinol, which exhibits lipophilic properties. Moreover, we tested the possibility to use Raman reporters as a probe to detect changes in distribution of certain organelles after induced endothelial dysfunction (ED) in in vitro models. In both cases, induced ED is characterized by the formation of lipid droplets in the cells, which is why a good tool for the detection of lipid-rich organelles is so important in these studies. Two-dimensional Raman images were obtained, visualizing the distribution of selected organic compounds in the cell, such as proteins, lipids, and nucleic acids. Additionally, the distribution of EdU, MitoBADY and falcarinol in endothelial cells (ECs) was determined. Moreover, we highlight some drawback of established Raman reporter and the need for testing them in various physiological state of the cell.
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Affiliation(s)
- Ewelina Matuszyk
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland.
| | - Adriana Adamczyk
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland; Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387 Krakow, Poland
| | - Basseem Radwan
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland; Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387 Krakow, Poland
| | - Anna Pieczara
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland
| | - Piotr Szcześniak
- Institute of Organic Chemistry, Polish Academy of Sciences, 44/52 Kasprzaka Str., 01-224 Warsaw, Poland
| | - Jacek Mlynarski
- Institute of Organic Chemistry, Polish Academy of Sciences, 44/52 Kasprzaka Str., 01-224 Warsaw, Poland
| | - Katarzyna Kamińska
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387 Krakow, Poland
| | - Malgorzata Baranska
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland; Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387 Krakow, Poland.
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In Vitro Spectroscopy-Based Profiling of Urothelial Carcinoma: A Fourier Transform Infrared and Raman Imaging Study. Cancers (Basel) 2021; 13:cancers13010123. [PMID: 33401726 PMCID: PMC7796146 DOI: 10.3390/cancers13010123] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/17/2020] [Accepted: 12/21/2020] [Indexed: 11/21/2022] Open
Abstract
Simple Summary The mortality and recurrence associated with urothelial carcinoma are high. High heterogeneity makes it hard to detect with currently available methods such as cytology and histology. We propose here vibrational spectroscopic imaging as an additional diagnostic tool for the classification of bladder cancer. Our study revealed that chemism-induced spectroscopic features of the cancer cells of various stages and invasiveness were specifically detected. Abstract Markers of bladder cancer cells remain elusive, which is a major cause of the low recognition of this malignant neoplasm and its recurrence. This implies an urgent need for additional diagnostic tools which are based on the identification of the chemism of bladder cancer. In this study, we employed label-free techniques of molecular imaging—Fourier Transform Infrared and Raman spectroscopic imaging—to investigate bladder cancer cell lines of various invasiveness (T24a, T24p, HT-1376, and J82). The urothelial HCV-29 cell line was the healthy control. Specific biomolecules discriminated spatial distribution of the nucleus and cytoplasm and indicated the presence of lipid bodies and graininess in some cell lines. The most prominent discriminators are the total content of lipids and sugar moieties as well as the presence of glycogen and other carbohydrates, un/saturated lipids, cytochromes, and a level of S-S bridges in proteins. The combination of the obtained hyperspectral database and chemometric methods showed a clear differentiation of each cell line at the level of the nuclei and cytoplasm and pointed out spectral signals which differentiated bladder cancer cells. Registered spectral markers correlated with biochemical composition changes can be associated with pathogenesis and potentially used for the diagnosis of bladder cancer and response to experimental therapies.
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Alhayaza R, Haque E, Karbasiafshar C, Sellke FW, Abid MR. The Relationship Between Reactive Oxygen Species and Endothelial Cell Metabolism. Front Chem 2020; 8:592688. [PMID: 33330380 PMCID: PMC7732658 DOI: 10.3389/fchem.2020.592688] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 10/12/2020] [Indexed: 12/12/2022] Open
Abstract
Cardiovascular disease (CVD) has been the leading cause of death for many decades, highlighting the importance of new research and treatments in the field. The role of hypoxia and subsequent free radical production [reactive oxygen species (ROS)] have become an area of particular interest in CVD. Interestingly, our laboratory and other laboratories have recently reported positive roles of subcellular ROS in modulating endothelial cell (EC) metabolism, proliferation, and angiogenesis. This bidirectional relationship between ROS and EC metabolism, as well as functional changes, continues to be an area of active research. Interestingly, ECs have been shown to rely on anaerobic processes for ATP generation, despite their direct access to oxygen. This paradox has proven to be beneficial as the major reliance on glycolysis produces ATP faster, preserves oxygen, and results in reduced ROS levels in contrast to oxidative phosphorylation. This review will address the relationship between ROS and carbohydrate, lipid, and nitrogen metabolism in ECs, and their effects on EC phenotype such as sprouting angiogenesis.
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Affiliation(s)
- Raid Alhayaza
- Alfaisal University School of Medicine, Riyadh, Saudi Arabia
| | - Emaan Haque
- Alfaisal University School of Medicine, Riyadh, Saudi Arabia
| | - Catherine Karbasiafshar
- Division of Cardiothoracic Surgery, Cardiovascular Research Center, Rhode Island Hospital, Brown University Alpert Medical School, Providence, RI, United States
| | - Frank W. Sellke
- Division of Cardiothoracic Surgery, Cardiovascular Research Center, Rhode Island Hospital, Brown University Alpert Medical School, Providence, RI, United States
| | - M. Ruhul Abid
- Division of Cardiothoracic Surgery, Cardiovascular Research Center, Rhode Island Hospital, Brown University Alpert Medical School, Providence, RI, United States
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Eosinophils and Neutrophils-Molecular Differences Revealed by Spontaneous Raman, CARS and Fluorescence Microscopy. Cells 2020; 9:cells9092041. [PMID: 32906767 PMCID: PMC7563840 DOI: 10.3390/cells9092041] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 12/14/2022] Open
Abstract
Leukocytes are a part of the immune system that plays an important role in the host’s defense against viral, bacterial, and fungal infections. Among the human leukocytes, two granulocytes, neutrophils (Ne) and eosinophils (EOS) play an important role in the innate immune system. For that purpose, eosinophils and neutrophils contain specific granules containing protoporphyrin-type proteins such as eosinophil peroxidase (EPO) and myeloperoxidase (MPO), respectively, which contribute directly to their anti-infection activity. Since both proteins are structurally and functionally different, they could potentially be a marker of both cells’ types. To prove this hypothesis, UV−Vis absorption spectroscopy and Raman imaging were applied to analyze EPO and MPO and their content in leukocytes isolated from the whole blood. Moreover, leukocytes can contain lipidic structures, called lipid bodies (LBs), which are linked to the regulation of immune responses and are considered to be a marker of cell inflammation. In this work, we showed how to determine the number of LBs in two types of granulocytes, EOS and Ne, using fluorescence and coherent anti-Stokes Raman scattering (CARS) microscopy. Spectroscopic differences of EPO and MPO can be used to identify these cells in blood samples, while the detection of LBs can indicate the cell inflammation process.
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Estimation of the content of lipids composing endothelial lipid droplets based on Raman imaging. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158758. [PMID: 32535237 DOI: 10.1016/j.bbalip.2020.158758] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/30/2020] [Accepted: 06/09/2020] [Indexed: 12/15/2022]
Abstract
Lipid droplets (LDs) are dynamic organelles involved in intracellular lipid metabolism, and the biogenesis of LDs in endothelium is triggered by the excess of lipids in the environment. In this paper we present the methodology aimed to define the composition of endothelial LDs formed upon stimulation with oleic acid (OA) in two models: endothelial cells cultured in vitro and in isolated blood vessel ex vivo. The biochemical composition of LDs was determined using Raman imaging, followed by the lipid unsaturation calibration analysis and modelling of spectral bands based on individual spectra of selected lipids. Among LDs formed in response to OA in vitro or ex vivo conditions there were two types of LDs; those with more unsaturated (average number of CC bonds equalled 1.40) or saturated (average number of CC bonds equalled 0.95) lipids. The modelling of endothelial LDs composition revealed the OA represented a major component of LDs (80.6-91.3%) with an important content of arachidonic acid (8.7-19.4%). In conclusion, endothelial LDs consist of exogenous oleic acid uptaken from the extracellular space, and the endogenous arachidonic acid released from plasma membranes.
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Heterogeneity of chemical composition of lipid droplets in endothelial inflammation and apoptosis. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118681. [DOI: 10.1016/j.bbamcr.2020.118681] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/10/2020] [Accepted: 02/14/2020] [Indexed: 12/28/2022]
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Matuszyk E, Sierka E, Rodewald M, Bae H, Meyer T, Kus E, Chlopicki S, Schmitt M, Popp J, Baranska M. Differential response of liver sinusoidal endothelial cells and hepatocytes to oleic and palmitic acid revealed by Raman and CARS imaging. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165763. [PMID: 32169502 DOI: 10.1016/j.bbadis.2020.165763] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/21/2020] [Accepted: 03/06/2020] [Indexed: 02/08/2023]
Abstract
Excess circulating fatty acids contribute to endothelial dysfunction that subsequently aggravates the metabolic conditions such as fatty liver diseases. However, the exact mechanism of this event is not fully understood, and the investigation on the effect of a direct exposure to fatty acids together with their subsequent fate is of interest. In this work we employed a chemically specific and label-free techniques such as Raman and CARS microscopies, to investigate the process of lipid droplets (LDs) formation in endothelial cells and hepatocytes after exposure to oleic and palmitic acid. We aimed to observe the changes in the composition of LDs associated with metabolism and degradation of lipids. We were able to characterize the diversity in the formation of LDs in endothelium as compared to hepatocytes, as well as the differences in the formation of LDs and degradation manner with respect to the used fatty acid. Thus, for the first time the spectral characteristics of LDs formed in endothelial cells after incubation with oleic and palmitic acid is presented, including the time-dependent changes in their chemical composition.
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Affiliation(s)
- Ewelina Matuszyk
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland; Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland
| | - Ewa Sierka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland; Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland
| | - Marko Rodewald
- Institute of Physical Chemistry (IPC), Abbe Center of Photonics (ACP), Friedrich-Schiller-University, Helmholtzweg 4, Jena, Germany
| | - Hyeonsoo Bae
- Institute of Physical Chemistry (IPC), Abbe Center of Photonics (ACP), Friedrich-Schiller-University, Helmholtzweg 4, Jena, Germany
| | - Tobias Meyer
- Institute of Physical Chemistry (IPC), Abbe Center of Photonics (ACP), Friedrich-Schiller-University, Helmholtzweg 4, Jena, Germany; Leibniz Institute of Photonic Technology, Member of Leibniz Health Technology, Albert-Einstein-Str. 9, Jena, Germany
| | - Edyta Kus
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland
| | - Stefan Chlopicki
- Jagiellonian University Medical College, Grzegorzecka 16, 31-531 Krakow, Poland; Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland
| | - Michael Schmitt
- Institute of Physical Chemistry (IPC), Abbe Center of Photonics (ACP), Friedrich-Schiller-University, Helmholtzweg 4, Jena, Germany
| | - Jürgen Popp
- Institute of Physical Chemistry (IPC), Abbe Center of Photonics (ACP), Friedrich-Schiller-University, Helmholtzweg 4, Jena, Germany; Leibniz Institute of Photonic Technology, Member of Leibniz Health Technology, Albert-Einstein-Str. 9, Jena, Germany.
| | - Malgorzata Baranska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland; Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland.
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12
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Blat A, Dybas J, Chrabaszcz K, Bulat K, Jasztal A, Kaczmarska M, Pulyk R, Popiela T, Slowik A, Malek K, Adamski MG, Marzec KM. FTIR, Raman and AFM characterization of the clinically valid biochemical parameters of the thrombi in acute ischemic stroke. Sci Rep 2019; 9:15475. [PMID: 31664105 PMCID: PMC6820737 DOI: 10.1038/s41598-019-51932-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 09/25/2019] [Indexed: 12/22/2022] Open
Abstract
The significance and utility of innovative imaging techniques in arterial clot analysis, which enable far more detailed and automated analysis compared to standard methods, are presented. The examination of two types of human thrombi is shown, representing the main ischemic stroke etiologies: fibrin–predominant clot of large vessel origin and red blood cells–rich clot of cardioembolic origin. The synergy effect of Fourier–transform infrared spectroscopy (FTIR), Raman spectroscopy (RS) and atomic force microscopy (AFM) techniques supported by chemometrics in comparison with reference histological staining was presented. The main advantage of such approach refers to free–label and non–destructive quantitative imaging of clinically valid, biochemical parameters in whole sample (FTIR–low resolution) and selected regions (RS–ultra–high resolution). We may include here analysis of lipid content, its distribution and total degree of unsaturation as well as analysis of protein content (mainly fibrin and hemoproteins). The AFM studies enhanced the vibrational data, showed clearly shape and thickness of clot features as well as visualized the fibrin framework. The extraordinary sensitivity of FTIR and RS imaging toward detection and discrimination of clinically valid parameters in clot confirms its applicability in assessment of thrombi origin.
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Affiliation(s)
- Aneta Blat
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego Str., 30-348, Krakow, Poland.,Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., Krakow, Poland
| | - Jakub Dybas
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego Str., 30-348, Krakow, Poland
| | - Karolina Chrabaszcz
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego Str., 30-348, Krakow, Poland.,Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., Krakow, Poland.,Center for Medical Genomics (OMICRON), Jagiellonian University Medical College, 7c Kopernika Str., 31-034, Krakow, Poland
| | - Katarzyna Bulat
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego Str., 30-348, Krakow, Poland
| | - Agnieszka Jasztal
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego Str., 30-348, Krakow, Poland
| | - Magdalena Kaczmarska
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego Str., 30-348, Krakow, Poland
| | - Roman Pulyk
- Department of Neurology, Jagiellonian University Medical College, 3 Botaniczna Str., 31-503, Krakow, Poland
| | - Tadeusz Popiela
- Department of Neuroradiology, Jagiellonian University Medical College, 3 Botaniczna Str., 31-503, Krakow, Poland
| | - Agnieszka Slowik
- Department of Neurology, Jagiellonian University Medical College, 3 Botaniczna Str., 31-503, Krakow, Poland
| | - Kamilla Malek
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., Krakow, Poland
| | - Mateusz G Adamski
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego Str., 30-348, Krakow, Poland
| | - Katarzyna M Marzec
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego Str., 30-348, Krakow, Poland. .,Center for Medical Genomics (OMICRON), Jagiellonian University Medical College, 7c Kopernika Str., 31-034, Krakow, Poland.
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13
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Tfaili S, Al Assaad A, Fournier N, Allaoui F, Paul JL, Chaminade P, Tfayli A. Investigation of lipid modifications in J774 macrophages by vibrational spectroscopies after eicosapentaenoic acid membrane incorporation in unloaded and cholesterol-loaded cells. Talanta 2019; 199:54-64. [DOI: 10.1016/j.talanta.2019.01.122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 01/20/2019] [Accepted: 01/22/2019] [Indexed: 01/19/2023]
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14
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Rygula A, Fernandes RF, Grosicki M, Kukla B, Leszczenko P, Augustynska D, Cernescu A, Dorosz A, Malek K, Baranska M. Raman imaging highlights biochemical heterogeneity of human eosinophils versus human eosinophilic leukaemia cell line. Br J Haematol 2019; 186:685-694. [PMID: 31134616 DOI: 10.1111/bjh.15971] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 03/19/2019] [Indexed: 01/21/2023]
Abstract
Eosinophils are acidophilic granulocytes that develop in the bone marrow. Although their population contributes only to approximately 1-6% of all leucocytes present in the human blood, they possess a wide range of specific functions. They play a key role in inflammation-regulating processes, when their numbers can increased to above 5 × 109 /l of peripheral blood. Their characteristic feature is the presence of granules containing eosinophil peroxidase (EPO), the release of which can trigger a cascade of events promoting oxidative stress, apoptosis or necrosis, leading finally to cell death. Raman spectroscopy is a powerful technique to detect EPO, which comprises a chromophore protoporphyrin IX. Another cell structure associated with inflammation processes are lipid bodies (lipid-rich organelles), also well recognized and imaged using high resolution confocal Raman spectroscopy. In this work, eosinophils isolated from the blood of a human donor were analysed versus their model, EoL-1 human eosinophilic leukaemia cell line, by Raman spectroscopic imaging. We showed that EPO was present only in primary cells and not found in the cell line. Eosinophils were activated using phorbol 12-myristate 13-acetate, which resulted in lipid bodies formation. An effect of cells stimulation was studied and compared for eosinophils and EoL-1.
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Affiliation(s)
- Anna Rygula
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
| | - Rafaella F Fernandes
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, Krakow, Poland
| | - Marek Grosicki
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, Krakow, Poland.,Department of Technology and Biotechnology of Drugs, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Bozena Kukla
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
| | | | - Dominika Augustynska
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, Krakow, Poland
| | | | - Aleksandra Dorosz
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland.,Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, Krakow, Poland
| | - Kamilla Malek
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland.,Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, Krakow, Poland
| | - Malgorzata Baranska
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland.,Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, Krakow, Poland
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15
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Szafraniec E, Kus E, Wislocka A, Kukla B, Sierka E, Untereiner V, Sockalingum GD, Chlopicki S, Baranska M. Raman spectroscopy-based insight into lipid droplets presence and contents in liver sinusoidal endothelial cells and hepatocytes. JOURNAL OF BIOPHOTONICS 2019; 12:e201800290. [PMID: 30578586 DOI: 10.1002/jbio.201800290] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 12/17/2018] [Accepted: 12/19/2018] [Indexed: 06/09/2023]
Abstract
Liver sinusoidal endothelial cells (LSECs), a type of endothelial cells with unique morphology and function, play an important role in the liver hemostasis, and LSECs dysfunction is involved in the development of nonalcoholic fatty liver disease (NAFLD). Here, we employed Raman imaging and chemometric data analysis in order to characterize the presence of lipid droplets (LDs) and their lipid content in primary murine LSECs, in comparison with hepatocytes, isolated from mice on high-fat diet. On NAFLD development, LDs content in LSECs changed toward more unsaturated lipids, and this response was associated with an increased expression of stearylo-CoA desaturase-1. To the best of our knowledge, this is a first report characterizing LDs in LSECs, where their chemical composition is analyzed along the progression of NAFLD at the level of single LD using Raman imaging.
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Affiliation(s)
- Ewelina Szafraniec
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Edyta Kus
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Adrianna Wislocka
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Bozena Kukla
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Ewa Sierka
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
| | - Valérie Untereiner
- Plateforme d'Imagerie Cellulaire et Tissulaire (PICT), Université de Reims Champagne-Ardenne, Reims, France
| | - Ganesh D Sockalingum
- BioSpecT-BioSpectroscopie Translationnelle, Université de Reims Champagne-Ardenne, Reims, France
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
- Chair of Pharmacology, Jagiellonian University Medical College, Krakow, Poland
| | - Malgorzata Baranska
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
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16
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Czamara K, Karnas E, Majka Z, Wojcik T, Zuba-Surma EK, Baranska M, Kaczor A. Impact of cell cycle dynamics on pathology recognition: Raman imaging study. JOURNAL OF BIOPHOTONICS 2019; 12:e201800152. [PMID: 30294876 DOI: 10.1002/jbio.201800152] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 09/18/2018] [Indexed: 06/08/2023]
Abstract
Confocal Raman imaging combined with fluorescence-activated cell sorting was used for in vitro studies of cell cultures to look at biochemical differences between the cells in different cell phases. To answer the question what is the impact of the cell cycle phase on discrimination of pathological cells, the combination of several factors was checked: a confluency of cell culture, the cell cycle dynamics and development of pathology. Confluency of 70% and 100% results in significant phenotypic cell changes that can be also diverse for different batches. In 100% confluency cultures, cells from various phases become phenotypically very similar and their recognition based on Raman spectra is not possible. For lower confluency, spectroscopic differences can be found between cell cycle phases (G0 /G1 , S and G2 /M) for control cells and cells incubated with tumor necrosis factor alpha (TNF-α), but when the mycotoxin cytochalasin B is used the Raman signatures of cell phases are not separable. Generally, this work shows that heterogeneity between control and inflamed cells can be bigger than heterogeneity between cell cycle phases, but it is related to several factors, and not always can be treated as a rule.
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Affiliation(s)
- Krzysztof Czamara
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Elzbieta Karnas
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
- Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Zuzanna Majka
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
| | - Tomasz Wojcik
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Ewa K Zuba-Surma
- Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Malgorzata Baranska
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
| | - Agnieszka Kaczor
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
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17
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Majzner K, Tott S, Roussille L, Deckert V, Chlopicki S, Baranska M. Uptake of fatty acids by a single endothelial cell investigated by Raman spectroscopy supported by AFM. Analyst 2019; 143:970-980. [PMID: 29372724 DOI: 10.1039/c7an01043e] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
In this work, confocal Raman imaging was used to study the formation of lipid droplets (LDs) in vitro in a single endothelial cell upon incubation with polyunsaturated fatty acids (10 or 25 μM) including arachidonic acid (AA) and its deuterated analog (AA-d8), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Based on the Raman spectra obtained from a single endothelial cell, it was possible to investigate biochemical changes induced by addition of polyunsaturated fatty acids. In particular, the content of lipids in the formed LDs and the unsaturation degree were identified by Raman spectroscopy by marker bands at 1660 cm-1 due to the C[double bond, length as m-dash]C stretching and at ∼3015 cm-1 due to the stretching mode of [double bond, length as m-dash]C-H associated with C[double bond, length as m-dash]C double bonds (except for a deuterated form where these bands are shifted respectively). To establish if the exogenous fatty acid was taken up by the cell and stored in LDs, a deuterium labelled polyunsaturated fatty acid was used. AA-d8 shows characteristic bands at around 2200-2300 cm-1 assigned to the [double bond, length as m-dash]C-D stretching modes. We established the uptake of AA and the accumulation of EPA into newly formed LDs in the endothelial cells. In contrast, no accumulation of DHA in LDs was observed even though LDs were formed upon DHA incubation. Furthermore, using AFM we demonstrated that the presence of LDs in the endothelium affected endothelial stiffness which could have pathophysiological significance. In summary, the results suggest that the formation of LDs in the endothelium involves exogenous and endogenous polyunsaturated fatty acids, and their relative contribution to the LD formation seems distinct for AA, EPA and DHA.
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Affiliation(s)
- Katarzyna Majzner
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland.
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18
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Gomes da Costa S, Richter A, Schmidt U, Breuninger S, Hollricher O. Confocal Raman microscopy in life sciences. Morphologie 2018; 103:11-16. [PMID: 30579682 DOI: 10.1016/j.morpho.2018.12.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Microscopy techniques are widely used in life sciences to study cells and tissues. Fluorescence microscopy, for example, is a very common method in many laboratories. While reliable and strong fluorescence signals are a clear advantage of this method, the labelling procedure with fluorescent dyes, the availability of required antibodies or the potentially necessary genetic modifications of the studied organism all introduce potential complications. By contrast, confocal Raman microscopy is a label-free and non-destructive imaging technique. In contrast to infrared microscopy, it is easily applicable in aqueous environments. Different microscope setups and combinations allow for the examination of various solid and liquid samples, even in their typical environments. The article demonstrates the analyzing capability of confocal Raman microscopy and correlative techniques through application examples of eukaryotic and prokaryotic cells, and cancerous and normal tissues and shows how confocal Raman microscopy provides valuable information for a more comprehensive understanding of the investigated sample.
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Affiliation(s)
| | - A Richter
- WITec GmbH, Lise-Meitner-Street, 6, 89081 Ulm, Germany
| | - U Schmidt
- WITec GmbH, Lise-Meitner-Street, 6, 89081 Ulm, Germany
| | - S Breuninger
- WITec GmbH, Lise-Meitner-Street, 6, 89081 Ulm, Germany.
| | - O Hollricher
- WITec GmbH, Lise-Meitner-Street, 6, 89081 Ulm, Germany
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19
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Kochan K, Kus E, Szafraniec E, Wislocka A, Chlopicki S, Baranska M. Changes induced by non-alcoholic fatty liver disease in liver sinusoidal endothelial cells and hepatocytes: spectroscopic imaging of single live cells at the subcellular level. Analyst 2018; 142:3948-3958. [PMID: 28944783 DOI: 10.1039/c7an00865a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Non-Alcoholic Fatty Liver Disease (NAFLD) is the most prevalent liver disorder worldwide, involving pathogenic mechanisms of liver sinusoidal endothelial cells (LSECs), hepatocytes and other liver cells. Here, we used a novel approach of label-free Raman confocal imaging to study primary LSECs and hepatocytes freshly isolated from the livers of mice with NAFLD induced by a high fat diet (HFD), in comparison to healthy controls. Our aim was to characterize changes in the biochemical composition in LSECs and hepatocytes that occur in a single cell at the subcellular level. LSECs from NAFLD livers displayed a significant increase in the intensity of marker bands of nuclear DNA that was not associated with changes in LSEC nucleus size. A number of changes in the cytoplasm of hepatocytes were identified. However, the most prominent change in hepatocytes was a substantial increase in the degree of unsaturation of LBs' (lipid bodies) lipids in NAFLD, suggesting an increase in the de novo lipogenesis of unsaturated lipids. The confocal Raman imaging of single live cells isolated from the liver provided a unique tool to better understand disease-induced cell-specific changes in the biochemical phenotype of primary liver cells.
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Affiliation(s)
- Kamila Kochan
- Centre for Biospectroscopy and School of Chemistry, Monash University, Clayton, 3800, Victoria, Australia
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20
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Nejabati HR, Mihanfar A, Pezeshkian M, Fattahi A, Latifi Z, Safaie N, Valiloo M, Jodati AR, Nouri M. N1-methylnicotinamide (MNAM) as a guardian of cardiovascular system. J Cell Physiol 2018; 233:6386-6394. [PMID: 29741779 DOI: 10.1002/jcp.26636] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/30/2018] [Indexed: 12/19/2022]
Abstract
Atherosclerosis is identified as the formation of atherosclerotic plaques, which could initiate the formation of a blood clot in which its growth to coronary artery can lead to a heart attack. N-methyltransferase (NNMT) is an enzyme that converts the NAM (nicotinamide) to its methylated form, N1-methylnicotinamide (MNAM). Higher levels of MNAM have been reported in cases with coronary artery disease (CAD). Further, MNAM increases endothelial prostacyclin (PGI2) and nitric oxide (NO) and thereby causes vasorelaxation. The vasoprotective, anti-inflammatory and anti-thrombotic roles of MNAM have been well documented; however, the exact underlying mechanisms remain to be clarified. Due to potential role of MNAM in the formation of lipid droplets (LDs), it might exert its function in coordination with lipids, and their targets. In this study, we summarized the roles of MNAM in cardiovascular system and highlighted its possible mode of actions.
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Affiliation(s)
- Hamid Reza Nejabati
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aynaz Mihanfar
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masoud Pezeshkian
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Fattahi
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zeinab Latifi
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Naser Safaie
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Valiloo
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahmad Reza Jodati
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Nouri
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
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21
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Gázquez A, Uhl O, Ruíz-Palacios M, Gill C, Patel N, Koletzko B, Poston L, Larqué E. Placental lipid droplet composition: Effect of a lifestyle intervention (UPBEAT) in obese pregnant women. Biochim Biophys Acta Mol Cell Biol Lipids 2018; 1863:998-1005. [PMID: 29702246 DOI: 10.1016/j.bbalip.2018.04.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 04/18/2018] [Accepted: 04/22/2018] [Indexed: 01/01/2023]
Abstract
Maternal obesity is associated with adverse outcomes. Placental lipid droplets (LD) have been implicated in maternal-fetal lipid transfer but it is not known whether placental LD fat composition is modifiable. We evaluated the effects of a diet and physical activity intervention in obese pregnant women compared to routine antenatal care (UPBEAT study) on placental LD composition. LD were isolated by ultracentrifugation. Total FAs and phospholipids (phosphatidylcholines, PCs; sphingomyelins, SMs and lyso-phosphatidylcholines, Lyso-PCs) were analyzed by LC-MS/MS. Placenta MFSD2a expression was assessed by western blot. Placental LDs from obese women were comprised of predominantly saturated and monounsaturated FAs. TG and Chol composition was similar between intervention (n = 20) and control (n = 23) groups. PCs containing dihomo-ɣ-linolenic acid in LD were positively associated with gestational weight gain (P < 0.007), and lowered by the intervention. In the whole sample, PCs carrying DHA and arachidonic acid were inversely associated with placental weight. Placenta MFSD2a expression was associated with DHA cord blood metabolites and relationships were observed between LD lipids, especially DHA carrying species, and cord blood metabolites. We describe placenta LD composition for the first time and demonstrate modest, potentially beneficial effects of a lifestyle intervention on LD FAs in obese pregnant women.
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Affiliation(s)
- Antonio Gázquez
- LMU - Ludwig-Maximilians-Universität Munich, Division of Metabolic and Nutritional Medicine, Dr. von Hauner Children's Hospital, Munich, Germany; Department of Physiology, Faculty of Biology, University of Murcia, Murcia, Spain
| | - Olaf Uhl
- LMU - Ludwig-Maximilians-Universität Munich, Division of Metabolic and Nutritional Medicine, Dr. von Hauner Children's Hospital, Munich, Germany
| | - María Ruíz-Palacios
- Department of Physiology, Faculty of Biology, University of Murcia, Murcia, Spain
| | - Carolyn Gill
- Department of Women and Children's Health, King's College London, St. Thomas' Hospital, London, UK
| | - Nashita Patel
- Department of Women and Children's Health, King's College London, St. Thomas' Hospital, London, UK
| | - Berthold Koletzko
- LMU - Ludwig-Maximilians-Universität Munich, Division of Metabolic and Nutritional Medicine, Dr. von Hauner Children's Hospital, Munich, Germany
| | - Lucilla Poston
- Department of Women and Children's Health, King's College London, St. Thomas' Hospital, London, UK
| | - Elvira Larqué
- Department of Physiology, Faculty of Biology, University of Murcia, Murcia, Spain.
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22
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Wiercigroch E, Staniszewska-Slezak E, Szkaradek K, Wojcik T, Ozaki Y, Baranska M, Malek K. FT-IR Spectroscopic Imaging of Endothelial Cells Response to Tumor Necrosis Factor-α: To Follow Markers of Inflammation Using Standard and High-Magnification Resolution. Anal Chem 2018; 90:3727-3736. [PMID: 29504750 DOI: 10.1021/acs.analchem.7b03089] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Two endothelial cell lines were selected as models to investigate an effect of incubation with cytokine tumor necrosis factor type α (TNF-α) using Fourier transform infrared (FT-IR) imaging spectroscopy. Both cell lines are often used in laboratories and are typical lung vascular endothelial cells (HMLVEC) derived from the fusion of umbilical vein endothelial cells with lung adenocarcinoma cells (EA.hy926). This study was focused on alteration of spectral changes accompanying inflammation at the cellular level by applying two resolution systems of FT-IR microscopy. The standard approach, with a pixel size of ca. 5.5 μm2, determined the inflammatory state of the whole cell, while a high-magnification resolution (pixel size of ca. 1.1 μm2) provided information at the subcellular level. Importantly, the analysis of IR spectra recorded with different modes produced similar results overall and yielded unambiguous classification of inflamed cells. Generally, the most significant changes in the cells under the influence of TNF-α are related with lipids-their composition and concentration; however, segregation of cells into subcellular compartments provided an additional insight into proteins and nucleic acids related events. The observed spectral alterations are specific for the type of endothelial cell line.
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Affiliation(s)
- Ewelina Wiercigroch
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Krakow , Poland
| | | | - Kinga Szkaradek
- Jagiellonian Centre for Experimental Therapeutics , Jagiellonian University , Bobrzynskiego 14 , 30-348 Krakow , Poland
| | - Tomasz Wojcik
- Jagiellonian Centre for Experimental Therapeutics , Jagiellonian University , Bobrzynskiego 14 , 30-348 Krakow , Poland
| | - Yukihiro Ozaki
- Department of Chemistry , School of Science and Technology, Kwansei Gakuin University , Gakuen 2-1 , Sanda , Hyogo 669-1337 , Japan
| | - Malgorzata Baranska
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Krakow , Poland.,Jagiellonian Centre for Experimental Therapeutics , Jagiellonian University , Bobrzynskiego 14 , 30-348 Krakow , Poland
| | - Kamilla Malek
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Krakow , Poland
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23
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Eelen G, de Zeeuw P, Treps L, Harjes U, Wong BW, Carmeliet P. Endothelial Cell Metabolism. Physiol Rev 2018; 98:3-58. [PMID: 29167330 PMCID: PMC5866357 DOI: 10.1152/physrev.00001.2017] [Citation(s) in RCA: 304] [Impact Index Per Article: 50.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 06/19/2017] [Accepted: 06/22/2017] [Indexed: 02/06/2023] Open
Abstract
Endothelial cells (ECs) are more than inert blood vessel lining material. Instead, they are active players in the formation of new blood vessels (angiogenesis) both in health and (life-threatening) diseases. Recently, a new concept arose by which EC metabolism drives angiogenesis in parallel to well-established angiogenic growth factors (e.g., vascular endothelial growth factor). 6-Phosphofructo-2-kinase/fructose-2,6-bisphosphatase-3-driven glycolysis generates energy to sustain competitive behavior of the ECs at the tip of a growing vessel sprout, whereas carnitine palmitoyltransferase 1a-controlled fatty acid oxidation regulates nucleotide synthesis and proliferation of ECs in the stalk of the sprout. To maintain vascular homeostasis, ECs rely on an intricate metabolic wiring characterized by intracellular compartmentalization, use metabolites for epigenetic regulation of EC subtype differentiation, crosstalk through metabolite release with other cell types, and exhibit EC subtype-specific metabolic traits. Importantly, maladaptation of EC metabolism contributes to vascular disorders, through EC dysfunction or excess angiogenesis, and presents new opportunities for anti-angiogenic strategies. Here we provide a comprehensive overview of established as well as newly uncovered aspects of EC metabolism.
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Affiliation(s)
- Guy Eelen
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven, Belgium; and Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
| | - Pauline de Zeeuw
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven, Belgium; and Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
| | - Lucas Treps
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven, Belgium; and Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
| | - Ulrike Harjes
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven, Belgium; and Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
| | - Brian W Wong
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven, Belgium; and Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven, Belgium; and Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
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24
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Czamara K, Majzner K, Selmi A, Baranska M, Ozaki Y, Kaczor A. Unsaturated lipid bodies as a hallmark of inflammation studied by Raman 2D and 3D microscopy. Sci Rep 2017; 7:40889. [PMID: 28098251 PMCID: PMC5241649 DOI: 10.1038/srep40889] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 12/12/2016] [Indexed: 02/07/2023] Open
Abstract
Endothelial HMEC-1 cells incubated with pro-inflammatory cytokine TNF-α for 6 and 24 hours were studied as a model of inflammation using Raman imaging. Striking changes in distribution, composition and concentration of cellular lipids were observed after exposure to TNF-α compared to the control. In particular, 3D Raman imaging revealed a significant increase in the amount of lipid entities formed under inflammation. Lipid bodies were randomly distributed in the cytoplasm and two types of droplets were assembled: more saturated one, in spectral characteristics resembling phosphatidylcholine and saturated cholesteryl esters, observed also in the control, and highly unsaturated one, containing also cholesterols, being a hallmark of inflamed cells. The statistical analysis showed that the number of lipid bodies was significantly dependent on the exposure time to TNF-α. Overall, observed formation of unsaturated lipid droplets can be directly correlated with the increase in production of prostacyclins - endogenous inflammation mediators.
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Affiliation(s)
- K Czamara
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland.,Jagiellonian Centre of Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland
| | - K Majzner
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland.,Jagiellonian Centre of Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland
| | - A Selmi
- Jagiellonian Centre of Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland
| | - M Baranska
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland.,Jagiellonian Centre of Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland
| | - Y Ozaki
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo 669-1337, Japan
| | - A Kaczor
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland.,Jagiellonian Centre of Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland
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25
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Fedorowicz A, Mateuszuk Ł, Kopec G, Skórka T, Kutryb-Zając B, Zakrzewska A, Walczak M, Jakubowski A, Łomnicka M, Słomińska E, Chlopicki S. Activation of the nicotinamide N-methyltransferase (NNMT)-1-methylnicotinamide (MNA) pathway in pulmonary hypertension. Respir Res 2016; 17:108. [PMID: 27581040 PMCID: PMC5007701 DOI: 10.1186/s12931-016-0423-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 08/20/2016] [Indexed: 12/15/2022] Open
Abstract
Background Pulmonary arterial hypertension (PAH) is associated with inflammatory response but it is unknown whether it is associated with alterations in NNMT activity and MNA plasma concentration. Here we examined changes in NNMT-MNA pathway in PAH in rats and humans. Methods PAH in rats was induced by a single subcutaneous injection of MCT (60 mg/kg). Changes in NNMT activity in the lungs and liver (assessed as the rate of conversion of nicotinamide (NA) to MNA), changes in plasma concentration of MNA and its metabolites (analyzed by LC/MS) were analyzed in relation to PAH progression. PAH was characterized by right ventricular hypertrophy (gross morphology), cardiac dysfunction (by MRI), lung histopathology, lung ultrastructure, and ET-1 concentration in plasma. NO-dependent and PGI2-dependent function in isolated lungs was analyzed. In naive patients with idiopathic pulmonary hypertension (IPAH) characterized by hemodynamic and biochemical parameters MNA and its metabolites in plasma were also measured. Results MCT-injected rats developed hypertrophy and functional impairment of the right ventricle, hypertrophy of the pulmonary arteries, endothelial ultrastructural defects and a progressive increase in ET-1 plasma concentration—findings all consistent with PAH development. In isolated lung, NO-dependent regulation of hypoxic pulmonary vasoconstriction was impaired, while PGI2 production (6-keto-PGF1α) was increased. NNMT activity increased progressively in the liver and in the lungs following MCT injection, and NNMT response was associated with an increase in MNA and 6-keto-PGF1α concentration in plasma. In IPAH patients plasma concentration of MNA was elevated as compared with healthy controls. Conclusions Progression of pulmonary hypertension is associated with the activation of the NNMT-MNA pathway in rats and humans. Given the vasoprotective activity of exogenous MNA, which was previously ascribed to PGI2 release, the activation of the endogenous NNMT-MNA pathway may play a compensatory role in PAH.
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Affiliation(s)
- Andrzej Fedorowicz
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzyńskiego 14, Krakow, Poland.,Chair of Pharmacology, Jagiellonian University Medical College, Grzegórzecka 16, Krakow, Poland
| | - Łukasz Mateuszuk
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzyńskiego 14, Krakow, Poland
| | - Grzegorz Kopec
- Department of Cardiac and Vascular Diseases, Jagiellonian University Medical College, John Paul II Hospital in Krakow, Pradnicka 80, Kraków, Poland
| | - Tomasz Skórka
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342, Kraków, Poland
| | - Barbara Kutryb-Zając
- Chair and Department of Biochemistry, Faculty of Medicine, Medical University of Gdańsk, Dębinki 1, Gdańsk, Poland
| | - Agnieszka Zakrzewska
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzyńskiego 14, Krakow, Poland
| | - Maria Walczak
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzyńskiego 14, Krakow, Poland.,Department of Toxicology, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
| | - Andrzej Jakubowski
- Chair of Pharmacology, Jagiellonian University Medical College, Grzegórzecka 16, Krakow, Poland
| | - Magdalena Łomnicka
- Chair of Pharmacology, Jagiellonian University Medical College, Grzegórzecka 16, Krakow, Poland
| | - Ewa Słomińska
- Chair and Department of Biochemistry, Faculty of Medicine, Medical University of Gdańsk, Dębinki 1, Gdańsk, Poland
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzyńskiego 14, Krakow, Poland. .,Chair of Pharmacology, Jagiellonian University Medical College, Grzegórzecka 16, Krakow, Poland.
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