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Abstract
Two-dimensional difference gel electrophoresis (2D-DIGE) is an elegant gel electrophoretic analytical tool for comparative protein assessment. It is based on two-dimensional gel electrophoresis (2D-GE) separation of fluorescently labeled protein extracts. The tagging procedures are designed to not interfere with the chemical properties of proteins with respect to their pI and electrophoretic mobility, once a proper labeling protocol is followed. The use of an internal pooled standard makes 2D-DIGE a highly accurate quantitative method enabling multiple protein samples to be separated on the same two-dimensional gel. Technical limitations of this technique (i.e., underrating of low abundant, high molecular mass and integral membrane proteins) are counterbalanced by the incomparable separation power which allows proteoforms and unknown PTM (posttranslational modification) identification. Moreover, the image matching and cross-gel statistical analysis generates robust quantitative results making data validation by independent technologies successful.
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Affiliation(s)
- Cecilia Gelfi
- Department of Biomedical Sciences for Health, University of Milan, Segrate, Italy
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Daniele Capitanio
- Department of Biomedical Sciences for Health, University of Milan, Segrate, Italy.
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2
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Phosphoproteome Analysis Using Two-Dimensional Electrophoresis Coupled with Chemical Dephosphorylation. Foods 2022; 11:foods11193119. [PMID: 36230195 PMCID: PMC9562008 DOI: 10.3390/foods11193119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 09/26/2022] [Accepted: 10/04/2022] [Indexed: 11/22/2022] Open
Abstract
Protein phosphorylation is a reversible post-translational modification (PTM) with major regulatory roles in many cellular processes. However, the analysis of phosphoproteins remains the most challenging barrier in the prevailing proteome research. Recent technological advances in two-dimensional electrophoresis (2-DE) coupled to mass spectrometry (MS) have enabled the identification, characterization, and quantification of protein phosphorylation on a global scale. Most research on phosphoproteins with 2-DE has been conducted using phosphostains. Nevertheless, low-abundant and low-phosphorylated phosphoproteins are not necessarily detected using phosphostains and/or MS. In this study, we report a comparative analysis of 2-DE phosphoproteome profiles using Pro-Q Diamond phosphoprotein stain (Pro-Q DPS) and chemical dephosphorylation of proteins with HF-P from longissimus thoracis (LT) muscle samples of the Rubia Gallega cattle breed. We found statistically significant differences in the number of identified phosphoproteins between methods. More specifically, we found a three-fold increase in phosphoprotein detection with the HF-P method. Unlike Pro-Q DPS, phosphoprotein spots with low volume and phosphorylation rate were identified by HF-P technique. This is the first approach to assess meat phosphoproteome maps using HF-P at a global scale. The results open a new window for 2-DE gel-based phosphoproteome analysis.
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3
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Asgarov R, Sen MK, Mikhael M, Karl T, Gyengesi E, Mahns DA, Malladi CS, Münch GW. Characterisation of the Mouse Cerebellar Proteome in the GFAP-IL6 Model of Chronic Neuroinflammation. THE CEREBELLUM 2021; 21:404-424. [PMID: 34324160 DOI: 10.1007/s12311-021-01303-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/25/2021] [Indexed: 12/14/2022]
Abstract
GFAP-IL6 transgenic mice are characterised by astroglial and microglial activation predominantly in the cerebellum, hallmarks of many neuroinflammatory conditions. However, information available regarding the proteome profile associated with IL-6 overexpression in the mouse brain is limited. This study investigated the cerebellum proteome using a top-down proteomics approach using 2-dimensional gel electrophoresis followed by liquid chromatography-coupled tandem mass spectrometry and correlated these data with motor deficits using the elevated beam walking and accelerod tests. In a detailed proteomic analysis, a total of 67 differentially expressed proteoforms including 47 cytosolic and 20 membrane-bound proteoforms were identified. Bioinformatics and literature mining analyses revealed that these proteins were associated with three distinct classes: metabolic and neurodegenerative processes as well as protein aggregation. The GFAP-IL6 mice exhibited impaired motor skills in the elevated beam walking test measured by their average scores of 'number of footslips' and 'time to traverse' values. Correlation of the proteoforms' expression levels with the motor test scores showed a significant positive correlation to peroxiredoxin-6 and negative correlation to alpha-internexin and mitochondrial cristae subunit Mic19. These findings suggest that the observed changes in the proteoform levels caused by IL-6 overexpression might contribute to the motor function deficits.
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Affiliation(s)
- Rustam Asgarov
- Pharmacology Unit, School of Medicine, Western Sydney University, Penrith, NSW, Australia
| | - Monokesh K Sen
- Proteomics and Lipidomics Lab, School of Medicine, Western Sydney University, Penrith, NSW, Australia
| | - Meena Mikhael
- Mass Spectrometry Facility, School of Medicine, Western Sydney University, Penrith, NSW, Australia
| | - Tim Karl
- Behavioural Neuroscience Lab, School of Medicine, Western Sydney University, Penrith, NSW, Australia.,Neuroscience Research Australia (NeuRA), Randwick, NSW, 2031, Australia.,School of Medical Sciences, University of New South Wales, Kensington, NSW, Australia
| | - Erika Gyengesi
- Pharmacology Unit, School of Medicine, Western Sydney University, Penrith, NSW, Australia
| | - David A Mahns
- Integrative Physiology Lab, School of Medicine, Western Sydney University, Penrith, NSW, Australia
| | - Chandra S Malladi
- Proteomics and Lipidomics Lab, School of Medicine, Western Sydney University, Penrith, NSW, Australia
| | - Gerald W Münch
- School of Medicine, Western Sydney University, Locked Bag 1797, Penrith, NSW, 2751, Australia.
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4
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May C, Brosseron F, Pfeiffer K, Fuchs K, Meyer HE, Sitek B, Marcus K. Proteome Analysis with Classical 2D-PAGE. Methods Mol Biol 2021; 2228:53-62. [PMID: 33950483 DOI: 10.1007/978-1-0716-1024-4_5] [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] [Indexed: 12/27/2022]
Abstract
Two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) is based on the combination of two orthogonal separation techniques. In the first dimension, proteins are separated by their isoelectric point, a technique known as isoelectric focusing (IEF). There are two important variants of IEF, which are carrier-ampholine (CA)-based IEF and immobilized pH-gradient (IPG)-based IEF. In the second dimension, proteins are further separated by their electrophoretic mobility using SDS-PAGE. Finally, proteins can be visualized and quantified by different staining procedures such as Coomassie, silver staining, or fluorescence labeling. This article gives detailed protocols for 2D-PAGE, using both CA- and IPG-based separation in the first dimension.
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Affiliation(s)
- Caroline May
- Medizinisches Proteom-Center (MPC), Medical Faculty, Ruhr-University Bochum, Bochum, Germany
- Medical Proteome Analysis, Center for Proteindiagnostics (PRODI) Ruhr-University Bochum, Bochum, Germany
| | - Frederic Brosseron
- Medizinisches Proteom-Center (MPC), Medical Faculty, Ruhr-University Bochum, Bochum, Germany
| | - Kathy Pfeiffer
- Medizinisches Proteom-Center (MPC), Medical Faculty, Ruhr-University Bochum, Bochum, Germany
- Medical Proteome Analysis, Center for Proteindiagnostics (PRODI) Ruhr-University Bochum, Bochum, Germany
| | - Kristin Fuchs
- Medizinisches Proteom-Center (MPC), Medical Faculty, Ruhr-University Bochum, Bochum, Germany
- Medical Proteome Analysis, Center for Proteindiagnostics (PRODI) Ruhr-University Bochum, Bochum, Germany
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Helmut E Meyer
- Medizinisches Proteom-Center (MPC), Medical Faculty, Ruhr-University Bochum, Bochum, Germany
| | - Barbara Sitek
- Medizinisches Proteom-Center (MPC), Medical Faculty, Ruhr-University Bochum, Bochum, Germany
- Medical Proteome Analysis, Center for Proteindiagnostics (PRODI) Ruhr-University Bochum, Bochum, Germany
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Katrin Marcus
- Medizinisches Proteom-Center (MPC), Medical Faculty, Ruhr-University Bochum, Bochum, Germany.
- Medical Proteome Analysis, Center for Proteindiagnostics (PRODI) Ruhr-University Bochum, Bochum, Germany.
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5
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A distinctive protein signature induced by lysophosphatidic acid receptor 6 (LPAR6) expression in hepatocellular carcinoma cells. Biochem Biophys Res Commun 2020; 526:1150-1156. [PMID: 32321639 DOI: 10.1016/j.bbrc.2020.04.036] [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: 03/14/2020] [Accepted: 04/10/2020] [Indexed: 12/24/2022]
Abstract
Hepatocellular carcinoma (HCC) is the most commonly diagnosed liver malignancy, ranking third in the overall global cancer-related mortality. A complex network of interacting proteins controls HCC growth and progression. Lysophosphatidic acid receptors (LPAR) are commonly overexpressed in HCC. In particular, we have previously reported that the expression of LPAR6 sustains tumorigenesis and growth of HCC and results in a poor prognosis in HCC patients. Here, we applied a comparative proteomic approach to compare protein expression in both LPAR6 expressing (HLE-LPAR6) and nonexpressing HCC cells (HLE-neo). We found changes in the expression levels of 19 proteins, which include carbohydrate metabolism enzymes, redox and detoxification enzymes, and gene-expression regulatory proteins. Our findings support the role of LPAR6 in controlling the expression of a distinctive protein signature in HCC cells, which can offer a valuable resource for the identification of potential theranostic biomarkers.
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Siciliano RA, Mazzeo MF, Ferretta A, Pacelli C, Rosato A, Papa F, Scacco S, Papa S, Cocco T, Lippolis R. Decreased amount of vimentin N-terminal truncated proteolytic products in parkin-mutant skin fibroblasts. Biochem Biophys Res Commun 2020; 521:693-698. [PMID: 31699368 DOI: 10.1016/j.bbrc.2019.10.154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 10/22/2019] [Indexed: 10/25/2022]
Abstract
Vimentin, a member of cytoskeleton intermediate filaments proteins, plays a critical role in cell structure and dynamics. The present proteomic study reveals reduced amount of six different lengths, N-terminal truncated proteolytic products of vimentin, in the primary skin fibroblasts from two unrelated PD patients, as compared to control fibroblasts. The decreased amount of N-terminal truncated forms of vimentin in parkin-mutant fibroblasts, could contribute to impairment of cellular function, potentially contributing to the pathogenesis of Parkinson disease.
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Affiliation(s)
| | | | - Anna Ferretta
- Department of Basic Medical Sciences, Neurosciences and Sense Organs University of Bari "Aldo Moro" Bari, Italy
| | - Consiglia Pacelli
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Antonio Rosato
- Department of Chemistry, University of Bari "Aldo Moro", Bari, Italy
| | - Francesco Papa
- Department of Basic Medical Sciences, Neurosciences and Sense Organs University of Bari "Aldo Moro" Bari, Italy
| | - Salvatore Scacco
- Department of Basic Medical Sciences, Neurosciences and Sense Organs University of Bari "Aldo Moro" Bari, Italy
| | - Sergio Papa
- Department of Basic Medical Sciences, Neurosciences and Sense Organs University of Bari "Aldo Moro" Bari, Italy; Stazione Zoologica Anton Dohrn, Napoli, Italy
| | - Tiziana Cocco
- Department of Basic Medical Sciences, Neurosciences and Sense Organs University of Bari "Aldo Moro" Bari, Italy.
| | - Rosa Lippolis
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies (IBIOM), National Research Council (CNR), Bari, Italy.
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Blundon M, Ganesan V, Redler B, Van PT, Minden JS. Two-Dimensional Difference Gel Electrophoresis. Methods Mol Biol 2019; 1855:229-247. [PMID: 30426421 DOI: 10.1007/978-1-4939-8793-1_20] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Two-dimensional difference gel electrophoresis (2D DIGE) is a modified form of 2D electrophoresis (2D E) that allows one to compare two or three protein samples simultaneously on the same gel. The proteins in each sample are covalently tagged with different color fluorescent dyes that are designed to have no effect on the relative migration of proteins during electrophoresis. Proteins that are common to the samples appear as "spots" with a fixed ratio of fluorescent signals, whereas proteins that differ between the samples have different fluorescence ratios. With conventional imaging systems, DIGE is capable of reliably detecting as little as 0.2 fmol of protein, and protein differences down to ± 15%, over a ~10,000-fold protein concentration range. DIGE combined with digital image analysis therefore greatly improves the statistical assessment of proteome variation. Here we describe a protocol for conducting DIGE experiments, which takes 2-3 days to complete. We have further improved upon 2D DIGE by introducing in-gel equilibration to improve protein retention during transfer between the first and second dimensions of electrophoresis and by developing a fluorescent gel imaging system with a millionfold dynamic range.
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Affiliation(s)
- Malachi Blundon
- Department of Biological Science, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Vinitha Ganesan
- Department of Biological Science, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Brendan Redler
- Department of Biological Science, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Phu T Van
- Department of Biological Science, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Jonathan S Minden
- Department of Biological Science, Carnegie Mellon University, Pittsburgh, PA, USA.
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8
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Gel electrophoresis-based plant proteomics: Past, present, and future. Happy 10th anniversary Journal of Proteomics! J Proteomics 2019; 198:1-10. [DOI: 10.1016/j.jprot.2018.08.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/21/2018] [Accepted: 08/26/2018] [Indexed: 02/03/2023]
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9
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Lanciotti R, Braschi G, Patrignani F, Gobbetti M, De Angelis M. How Listeria monocytogenes Shapes Its Proteome in Response to Natural Antimicrobial Compounds. Front Microbiol 2019; 10:437. [PMID: 30930865 PMCID: PMC6423498 DOI: 10.3389/fmicb.2019.00437] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 02/20/2019] [Indexed: 12/19/2022] Open
Abstract
The goal of this study was to investigate the adaptation of L. monocytogenes Scott A cells to treatments with sublethal doses of antimicrobials (ethanol, citral, carvacrol, E-2-hexenal and thyme essential oil). The survival of L. monocytogenes cells was not affected by the antimicrobials at the concentrations assayed, with the exception of ethanol (1% v/v) and thyme essential oil (100 mg/L), which decreased cell viability from 8.53 ± 0.36 to 7.20 ± 0.22 log CFU/mL (P = 0.04). We subsequently evaluated how L. monocytogenes regulates and shapes its proteome in response to antimicrobial compounds. Compared to the control cells grown under optimal conditions, L. monocytogenes treated for 1 h with the antimicrobial compounds showed increased or decreased (≥ or ≤2-fold, respectively, P < 0.05) levels of protein synthesis for 223 protein spots. As shown multivariate clustering analysis, the proteome profiles differed between treatments. Adaptation and shaping of proteomes mainly concerned cell cycle control, cell division, chromosome, motility and regulatory related proteins, carbohydrate, pyruvate, nucleotide and nitrogen metabolism, cofactors and vitamins and stress response with contrasting responses for different stresses. Ethanol, citral (85 mg/l) or (E)-2-hexenal (150 mg/L) adapted cells increased survival during acid stress imposed under model (BHI) and food-like systems.
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Affiliation(s)
- Rosalba Lanciotti
- Dipartmento di Scienze e Tecnologie Agro-Alimentari, Università degli Studi di Bologna, Bologna, Italy
| | - Giacomo Braschi
- Dipartmento di Scienze e Tecnologie Agro-Alimentari, Università degli Studi di Bologna, Bologna, Italy
| | - Francesca Patrignani
- Dipartmento di Scienze e Tecnologie Agro-Alimentari, Università degli Studi di Bologna, Bologna, Italy
| | | | - Maria De Angelis
- Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, Università di Bari Aldo Moro, Bari, Italy
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10
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Comparative physiological and leaf proteome analysis between drought-tolerant chickpea Cicer reticulatum and drought-sensitive chickpea C. arietinum. J Biosci 2019. [DOI: 10.1007/s12038-018-9836-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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11
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Abstract
Two-dimensional electrophoresis is useful for separation of individual proteins that can be easily isolated and processed with mass spectrometry for their identification. Here we describe a simplified method of 2D electrophoresis with aim to help beginners in optimization of protein separation protocol, which can be further modified to enhance protein spot resolution. Current protocol can be used in different fields of biology including progenitor cells.
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12
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Mouzo D, Bernal J, López-Pedrouso M, Franco D, Zapata C. Advances in the Biology of Seed and Vegetative Storage Proteins Based on Two-Dimensional Electrophoresis Coupled to Mass Spectrometry. Molecules 2018; 23:E2462. [PMID: 30261600 PMCID: PMC6222612 DOI: 10.3390/molecules23102462] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/18/2018] [Accepted: 09/21/2018] [Indexed: 12/24/2022] Open
Abstract
Seed storage proteins play a fundamental role in plant reproduction and human nutrition. They accumulate during seed development as reserve material for germination and seedling growth and are a major source of dietary protein for human consumption. Storage proteins encompass multiple isoforms encoded by multi-gene families that undergo abundant glycosylations and phosphorylations. Two-dimensional electrophoresis (2-DE) is a proteomic tool especially suitable for the characterization of storage proteins because of their peculiar characteristics. In particular, storage proteins are soluble multimeric proteins highly represented in the seed proteome that contain polypeptides of molecular mass between 10 and 130 kDa. In addition, high-resolution profiles can be achieved by applying targeted 2-DE protocols. 2-DE coupled with mass spectrometry (MS) has traditionally been the methodology of choice in numerous studies on the biology of storage proteins in a wide diversity of plants. 2-DE-based reference maps have decisively contributed to the current state of our knowledge about storage proteins in multiple key aspects, including identification of isoforms and quantification of their relative abundance, identification of phosphorylated isoforms and assessment of their phosphorylation status, and dynamic changes of isoforms during seed development and germination both qualitatively and quantitatively. These advances have translated into relevant information about meaningful traits in seed breeding such as protein quality, longevity, gluten and allergen content, stress response and antifungal, antibacterial, and insect susceptibility. This review addresses progress on the biology of storage proteins and application areas in seed breeding using 2-DE-based maps.
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Affiliation(s)
- Daniel Mouzo
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Javier Bernal
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - María López-Pedrouso
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Daniel Franco
- Meat Technology Center of Galicia, 32900 San Cibrao das Viñas, Ourense, Spain.
| | - Carlos Zapata
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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Yan X, He B, Hu L, Gao J, Chen S, Jiang G. Insight into the endocrine disrupting effect and cell response to butyltin compounds in H295R cell: Evaluated with proteomics and bioinformatics analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 628-629:1489-1496. [PMID: 30045567 DOI: 10.1016/j.scitotenv.2018.02.165] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/10/2018] [Accepted: 02/13/2018] [Indexed: 06/08/2023]
Abstract
The widespread use of organotin compounds (OTs) as biocides in antifouling paints and agricultural applications poses a serious threat to the ecosystem and humans. Butyltin compounds (BTs), especially tributyltin (TBT), are considered to be endocrine disrupting chemicals in marine organisms. The underlying mechanism of disrupting effects on mammals, however, has not been sufficiently investigated. To determine the effect and action of these biocides, the present study evaluated the effects of BTs on human adrenocortical carcinoma cells (H295R) with a focus on endocrine disrupting effect. Two-dimensional electrophoresis (2-DE) and subsequent mass finger printing were used to identify proteins expression profiles from the cells after exposure to 0.1μM BTs for 48h. In total, 89 protein spots showed altered expression in at least two treatment groups and 69 of these proteins were subsequently identified. Bioinformatic analysis of the proteins indicated that BTs involved in the regulation of hormone homeostasis, lipid metabolism, cell death, and energy production. IPA analysis revealed LXR/RXR (liver X receptor/retinoid X receptor) activation, FXR/RXR (farnesoid X receptor/retinoid X receptor) activation and fatty acid metabolism were the top three categories on which BTs acted and these systems play vital roles in sterol, glucose and lipid metabolism. The expression of LXR and FXR mRNA in H295R cells was stimulated by TBT, confirming the ability of TBT to activate this nuclear receptor. In summary, the differentially expressed proteins discovered in this study may participate in the toxic actions of BTs, and nuclear receptor activation and lipid metabolism may play important roles in such actions of BTs.
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Affiliation(s)
- Xueting Yan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bin He
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Ligang Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Institute of Environment and Health, Jianghan University, Wuhan, Hubei 430056, China.
| | - Jiejun Gao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuai Chen
- Department of Radiation Oncology, Washington University in St. Louis, 4511 Forest Park Ave, St. Louis, MO 63108, USA
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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14
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Gellért Á, Pósa T, Fábián A, Szabó L, Bóka K, Forró B, Salánki K, Drahos L, Tóth E, Juhász A, Balázs E. A single point mutation on the cucumber mosaic virus surface induces an unexpected and strong interaction with the F1 complex of the ATP synthase in Nicotiana clevelandii plants. Virus Res 2018; 251:47-55. [PMID: 29730309 DOI: 10.1016/j.virusres.2018.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/27/2018] [Accepted: 05/03/2018] [Indexed: 11/15/2022]
Abstract
A previous study showed that a single amino acid difference in the cucumber mosaic virus (CMV) capsid protein (CP) elicits unusual symptoms. The wild-type strain (CMV-R) induces green mosaic symptoms and malformation while the mutant strain (CMV-R3E79R) causes chlorotic lesions on inoculated leaves and strong stunting with necrosis on systemic leaves. Virion preparations of CMV-R and CMV-R3E79R were partially purified from Nicotiana clevelandii A. Gray and analysed by two-dimensional gel electrophoresis. Their separated protein patterns showed remarkable differences at the 50-75 kDa range, both in numbers and intensity of spots, with more protein spots for the mutant CMV. Mass spectrometry analysis demonstrated that the virion preparations contained host proteins identified as ATP synthase alpha and beta subunits as well as small and large Rubisco subunits, respectively. Virus overlay protein binding assay (VOPBA), immunogold electron microscopy and modified ELISA experiments were used to prove the direct interaction between the virus particle and the N. clevelandii ATP synthase F1 motor complex. Protein-protein docking study revealed that the electrostatic change in the mutant CMV can introduce stronger interactions with ATP synthase F1 complex. Based on our findings we suggest that the mutation present in the CP can have a direct effect on the long-distance movement and systemic symptoms. In molecular view the mutant CMV virion can lethally block the rotation of the ATP synthase F1 motor complex which may lead to cell apoptosis, and finally to plant death.
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Affiliation(s)
- Ákos Gellért
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary.
| | - Tímea Pósa
- Plant Protection Institute, Georgikon Faculty, Pannon University, Keszthely, Hungary
| | - Attila Fábián
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
| | - László Szabó
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Károly Bóka
- Department of Plant Anatomy, Eötvös Loránd University, Budapest, Hungary
| | - Barbara Forró
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary
| | - Katalin Salánki
- Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary
| | - László Drahos
- MS Proteomics Research Group, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Eszter Tóth
- MS Proteomics Research Group, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Angéla Juhász
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
| | - Ervin Balázs
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
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15
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Kotz S, Kullmann M, Kalayda GV, Dyballa-Rukes N, Jaehde U, Metzger S. Optimized two-dimensional gel electrophoresis in an alkaline pH range improves the identification of intracellular CFDA-cisplatin-protein adducts in ovarian cancer cells. Electrophoresis 2018; 39:1488-1496. [DOI: 10.1002/elps.201700377] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 04/06/2018] [Accepted: 04/06/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Sandra Kotz
- MS-Platform Biocenter, Cluster of Excellence on Plant Science (CEPLAS); University of Cologne; Cologne Germany
- IUF-Leibniz Research Institute for Environmental Medicine, Heisenberg-group - Environmentally-induced cardiovascular degeneration; Mass spectrometry Core Unit; Düsseldorf Germany
| | - Maximilian Kullmann
- Department of Clinical Pharmacy, Institute of Pharmacy; University of Bonn; Bonn Germany
| | - Ganna V. Kalayda
- Department of Clinical Pharmacy, Institute of Pharmacy; University of Bonn; Bonn Germany
| | - Nadine Dyballa-Rukes
- IUF-Leibniz Research Institute for Environmental Medicine, Heisenberg-group - Environmentally-induced cardiovascular degeneration; Mass spectrometry Core Unit; Düsseldorf Germany
| | - Ulrich Jaehde
- Department of Clinical Pharmacy, Institute of Pharmacy; University of Bonn; Bonn Germany
| | - Sabine Metzger
- MS-Platform Biocenter, Cluster of Excellence on Plant Science (CEPLAS); University of Cologne; Cologne Germany
- IUF-Leibniz Research Institute for Environmental Medicine, Heisenberg-group - Environmentally-induced cardiovascular degeneration; Mass spectrometry Core Unit; Düsseldorf Germany
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16
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Bianchi L, Carnemolla C, Viviani V, Landi C, Pavone V, Luddi A, Piomboni P, Bini L. Soluble protein fraction of human seminal plasma. J Proteomics 2018; 174:85-100. [DOI: 10.1016/j.jprot.2017.12.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 12/04/2017] [Accepted: 12/21/2017] [Indexed: 12/28/2022]
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17
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Abstract
Two-dimensional difference gel electrophoresis (2-D DIGE) is an advanced and elegant gel electrophoretic analytical tool for comparative protein assessment. It is based on two-dimensional gel electrophoresis (2-DE) separation of fluorescently labeled protein extracts. The tagging procedures are designed to not interfere with the chemical properties of proteins with respect to their pI and electrophoretic mobility, once a proper labeling protocol is followed. The two-dye or three-dye systems can be adopted and their choice depends on specific applications. Furthermore, the use of an internal pooled standard makes 2-D DIGE a highly accurate quantitative method enabling multiple protein samples to be separated on the same two-dimensional gel. The image matching and cross-gel statistical analysis generates robust quantitative results making data validation by independent technologies successful.
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Affiliation(s)
- Cecilia Gelfi
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, via f.lli Cervi, 93, 20090, Segrate, Milan, Italy.
- U.O. Proteomica clinica, IRCCS Policlinico San Donato, 20097, San Donato, Milan, Italy.
- Istituto di Bioimmagini e Fisiologia Molecolare, CNR, 20090, Segrate, Milan, Italy.
| | - Daniele Capitanio
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, via f.lli Cervi, 93, 20090, Segrate, Milan, Italy
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18
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Puglia M, Landi C, Gagliardi A, Breslin L, Armini A, Brunetti J, Pini A, Bianchi L, Bini L. The proteome speciation of an immortalized cystic fibrosis cell line: New perspectives on the pathophysiology of the disease. J Proteomics 2018; 170:28-42. [DOI: 10.1016/j.jprot.2017.09.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 09/01/2017] [Accepted: 09/25/2017] [Indexed: 01/04/2023]
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19
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Onelli E, Moscatelli A, Gagliardi A, Zaninelli M, Bini L, Baldi A, Caccianiga M, Reggi S, Rossi L. Retarded germination of Nicotiana tabacum seeds following insertion of exogenous DNA mimics the seed persistent behavior. PLoS One 2017; 12:e0187929. [PMID: 29216220 PMCID: PMC5720674 DOI: 10.1371/journal.pone.0187929] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 11/09/2017] [Indexed: 01/23/2023] Open
Abstract
Tobacco seeds show a coat-imposed dormancy in which the seed envelope tissues (testa and endosperm) impose a physical constraint on the radicle protrusion. The germination-limiting process is represented by the endosperm rupture which is induced by cell-wall weakening. Transgenic tobacco seeds, obtained by insertion of exogenous genes codifying for seed-based oral vaccines (F18 and VT2eB), showed retarded germination with respect to the wild type and modified the expression of endogenous proteins. Morphological and proteomic analyses of wild type and transgenic seeds revealed new insights into factors influencing seed germination. Our data showed that the interference of exogenous DNA influences the germination rather than the dormancy release, by modifying the maturation process. Dry seeds of F18 and VT2eB transgenic lines accumulated a higher amount of reserve and stress-related proteins with respect to the wild type. Moreover, the storage proteins accumulated in tobacco F18 and VT2eB dry seeds have structural properties that do not enable the early limited proteolysis observed in the wild type. Morphological observations by electron and light microscopy revealed a retarded mobilization of the storage material from protein and lipid bodies in transgenic seeds, thus impairing water imbibition and embryo elongation. In addition, both F18 and VT2eB dry seeds are more rounded than the wild type. Both the morphological and biochemical characteristics of transgenic seeds mimic the seed persistent profile, in which their roundness enables them to be buried in the soil, while the higher content of storage material enables the hypocotyl to elongate more and the cotyledons to emerge.
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Affiliation(s)
| | | | - Assunta Gagliardi
- Laboratory of Functional Proteomic, Department of Life Science, University of Siena, Siena, Italy
| | - Mauro Zaninelli
- Department of Human Sciences and Quality of Life Promotion, Università Telematica San Raffaele Roma, Italy, Rome, Italy
| | - Luca Bini
- Laboratory of Functional Proteomic, Department of Life Science, University of Siena, Siena, Italy
| | - Antonella Baldi
- Department of Health, Animal Science and Food Safety, Università degli Studi di Milano, Milan, Italy
| | | | | | - Luciana Rossi
- Department of Health, Animal Science and Food Safety, Università degli Studi di Milano, Milan, Italy
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20
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Gagliardi A, Besio R, Carnemolla C, Landi C, Armini A, Aglan M, Otaify G, Temtamy SA, Forlino A, Bini L, Bianchi L. Cytoskeleton and nuclear lamina affection in recessive osteogenesis imperfecta: A functional proteomics perspective. J Proteomics 2017; 167:46-59. [PMID: 28802583 PMCID: PMC5584732 DOI: 10.1016/j.jprot.2017.08.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 08/02/2017] [Accepted: 08/07/2017] [Indexed: 02/07/2023]
Abstract
Osteogenesis imperfecta (OI) is a collagen-related disorder associated to dominant, recessive or X-linked transmission, mainly caused by mutations in type I collagen genes or in genes involved in type I collagen metabolism. Among the recessive forms, OI types VII, VIII, and IX are due to mutations in CRTAP, P3H1, and PPIB genes, respectively. They code for the three components of the endoplasmic reticulum complex that catalyzes 3-hydroxylation of type I collagen α1Pro986. Under-hydroxylation of this residue leads to collagen structural abnormalities and results in moderate to lethal OI phenotype, despite the exact molecular mechanisms are still not completely clear. To shed light on these recessive forms, primary fibroblasts from OI patients with mutations in CRTAP (n=3), P3H1 (n=3), PPIB (n=1) genes and from controls (n=4) were investigated by a functional proteomic approach. Cytoskeleton and nucleoskeleton asset, protein fate, and metabolism were delineated as mainly affected. While western blot experiments confirmed altered expression of lamin A/C and cofilin-1, immunofluorescence analysis using antibody against lamin A/C and phalloidin showed an aberrant organization of nucleus and cytoskeleton. This is the first report describing an altered organization of intracellular structural proteins in recessive OI and pointing them as possible novel target for OI treatment. SIGNIFICANCE OI is a prototype for skeletal dysplasias. It is a highly heterogeneous collagen-related disorder with dominant, recessive and X-linked transmission. There is no definitive cure for this disease, thus a better understanding of the molecular basis of its pathophysiology is expected to contribute in identifying potential targets to develop new treatments. Based on this concept, we performed a functional proteomic study to delineate affected molecular pathways in primary fibroblasts from recessive OI patients, carrying mutations in CRTAP (OI type VII), P3H1 (OI type VIII), and PPIB (OI type IX) genes. Our analyses demonstrated the occurrence of an altered cytoskeleton and, for the first time in OI, of nuclear lamina organization. Hence, cytoskeleton and nucleoskeleton components may be considered as novel drug targets for clinical management of the disease. Finally, according to our analyses, OI emerged to share similar deregulated pathways and molecular aberrances, as previously described, with other rare disorders caused by different genetic defects. Those aberrances may provide common pharmacological targets to support classical clinical approach in treating different diseases.
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Affiliation(s)
- Assunta Gagliardi
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, Siena, Italy; CIBIO, University of Trento, Trento, Italy
| | - Roberta Besio
- Department of Molecular Medicine, Biochemistry Unit, University of Pavia, Pavia, Italy
| | - Chiara Carnemolla
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, Siena, Italy
| | - Claudia Landi
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, Siena, Italy
| | - Alessandro Armini
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, Siena, Italy
| | - Mona Aglan
- Department of Clinical Genetics, Human Genetics & Genome Research Division, Center of Excellence for Human Genetics, National Research Centre, Cairo, Egypt
| | - Ghada Otaify
- Department of Clinical Genetics, Human Genetics & Genome Research Division, Center of Excellence for Human Genetics, National Research Centre, Cairo, Egypt
| | - Samia A Temtamy
- Department of Clinical Genetics, Human Genetics & Genome Research Division, Center of Excellence for Human Genetics, National Research Centre, Cairo, Egypt
| | - Antonella Forlino
- Department of Molecular Medicine, Biochemistry Unit, University of Pavia, Pavia, Italy
| | - Luca Bini
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, Siena, Italy
| | - Laura Bianchi
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, Siena, Italy.
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21
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Wu X, Xu C, Wang W. Reduction and Alkylation of Proteins in 2D Gel Electrophoresis: Before or after Isoelectric Focusing? Front Chem 2017; 5:59. [PMID: 28861411 PMCID: PMC5559430 DOI: 10.3389/fchem.2017.00059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/02/2017] [Indexed: 01/11/2023] Open
Affiliation(s)
- Xiaolin Wu
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Life Sciences, Henan Agricultural UniversityZhengzhou, China
| | - Chenhui Xu
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Life Sciences, Henan Agricultural UniversityZhengzhou, China
| | - Wei Wang
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Life Sciences, Henan Agricultural UniversityZhengzhou, China
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22
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Gopi S, Vadde R, Setty OH. Protective effect of aqueous extract of Phyllanthus fraternus against bromobenzene induced changes on cytosolic glutathione S-transferase isozymes in rat liver. Biochem Biophys Rep 2017; 10:208-214. [PMID: 29114574 PMCID: PMC5637236 DOI: 10.1016/j.bbrep.2017.04.001] [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: 11/03/2016] [Revised: 03/29/2017] [Accepted: 04/03/2017] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to investigate beneficial effect of aqueous extract of Phyllanthus fraternus (AEPF) on bromobenzene (BB) induced changes on cytosolic glutathione S-transferase (GST) isozymes in rat liver. Administration of BB significantly decreased the activity of GST, however, prior administration of AEPF prevented the BB induced decrease in GST activity. Further the cytosolic GSTs were purified from 3 groups of animals (control, BB and AEPF+BB administered) and resolved into three protein bands on SDS-PAGE. Densitometric analysis showed a significant decrease in BB group compared to control. Further, 2D PAGE analysis resolved these proteins into 8 bands which were identified as five isozymes of alpha, two of Mu and one of theta by MALDI-TOF MS and also observed decreased levels of isozymes in BB group. However, on prior administration of AEPF significantly prevented the BB induced decrease in GSTs and restored to normal levels.
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Key Words
- 2DE, two dimensional gel electrophoresis
- AEPF, aqueous extract of Phyllanthus fraternus
- BB, bromobenzene
- Bromobenzene
- CDNB, 1-chlro-2, 4-dinitrobenzene
- CHAPS, (3-[(3-cholamidopropyl)-dimethylammino]-1-propane sulfonate)
- DTT, dithiothretol
- GSTs, glutathione S transferases
- Glutathione S transferase
- IPG, immobilized pH gradient
- MALDI-TOF MS, matrix-assisted laser desorption/ionization-time of flight mass spectrometry
- Oxidative stress
- PMF, peptide mass fingerprint
- Phyllanthus fraternus
- ROS, reactive oxygen species
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Affiliation(s)
- Sriram Gopi
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India
| | - Ramakrishna Vadde
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India
- Department of Biotechnology and Bioinformatics, Yogi Vemana University, Kadapa 516003, India
| | - Oruganti H. Setty
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India
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23
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Donadio C, Kanaki A, Sami N, Tognotti D. High-Flux Dialysis: Clinical, Biochemical, and Proteomic Comparison with Low-Flux Dialysis and On-Line Hemodiafiltration. Blood Purif 2017; 44:129-139. [PMID: 28571019 DOI: 10.1159/000476053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 04/24/2017] [Indexed: 11/19/2022]
Abstract
Hemodiafiltration on-line (on-line HDF) is a more efficient treatment than low-flux hemodialysis (HD). Unfortunately, it cannot be proposed to all patients. The aim of this study was to evaluate the safety, efficiency, and mechanisms of removal of toxins with high-flux HD vs. low-flux HD and on-line HDF. Randomized cross-over study designed to evaluate efficiency and tolerability of high-flux HD vs. low-flux HD in aged patients; to compare by means of biochemical and proteomic analyses the efficiency and mechanisms of removal of toxins with high-flux HD vs. on-line HDF. The removal of small toxins was similar with high-flux and low-flux HD. β2-microglobulin was removed only with high-flux HD, which had an excellent tolerability. The efficiency of high-flux HD was similar to on-line HDF. Proteomic analysis demonstrated that only high-flux membranes remove and adsorb small proteins. High-flux HD may be an efficient alternative to on-line HDF.
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Affiliation(s)
- Carlo Donadio
- Department of Clinical and Experimental Medicine, Division of Nephrology, University of Pisa, Istituto di Biofisica, CNR, Pisa, Italy
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24
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Fantappiè L, Irene C, De Santis M, Armini A, Gagliardi A, Tomasi M, Parri M, Cafardi V, Bonomi S, Ganfini L, Zerbini F, Zanella I, Carnemolla C, Bini L, Grandi A, Grandi G. Some Gram-negative Lipoproteins Keep Their Surface Topology When Transplanted from One Species to Another and Deliver Foreign Polypeptides to the Bacterial Surface. Mol Cell Proteomics 2017; 16:1348-1364. [PMID: 28483926 PMCID: PMC5500766 DOI: 10.1074/mcp.m116.065094] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 05/05/2017] [Indexed: 11/29/2022] Open
Abstract
In Gram-negative bacteria, outer membrane-associated lipoproteins can either face the periplasm or protrude out of the bacterial surface. The mechanisms involved in lipoprotein transport through the outer membrane are not fully elucidated. Some lipoproteins reach the surface by using species-specific transport machinery. By contrast, a still poorly characterized group of lipoproteins appears to always cross the outer membrane, even when transplanted from one organism to another. To investigate such lipoproteins, we tested the expression and compartmentalization in E. coli of three surface-exposed lipoproteins, two from Neisseria meningitidis (Nm-fHbp and NHBA) and one from Aggregatibacter actinomycetemcomitans (Aa-fHbp). We found that all three lipoproteins were lipidated and compartmentalized in the E. coli outer membrane and in outer membrane vesicles. Furthermore, fluorescent antibody cell sorting analysis, proteolytic surface shaving, and confocal microscopy revealed that all three proteins were also exposed on the surface of the outer membrane. Removal or substitution of the first four amino acids following the lipidated cysteine residue and extensive deletions of the C-terminal regions in Nm-fHbp did not prevent the protein from reaching the surface of the outer membrane. Heterologous polypeptides, fused to the C termini of Nm-fHbp and NHBA, were efficiently transported to the E. coli cell surface and compartmentalized in outer membrane vesicles, demonstrating that these lipoproteins can be exploited in biotechnological applications requiring Gram-negative bacterial surface display of foreign polypeptides.
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Affiliation(s)
- Laura Fantappiè
- From the ‡Synthetic and Structural Vaccinology Unit, CIBIO, University of Trento, Via Sommarive, 9, 38123 Povo, Trento, Italy
| | - Carmela Irene
- From the ‡Synthetic and Structural Vaccinology Unit, CIBIO, University of Trento, Via Sommarive, 9, 38123 Povo, Trento, Italy
| | - Micaela De Santis
- From the ‡Synthetic and Structural Vaccinology Unit, CIBIO, University of Trento, Via Sommarive, 9, 38123 Povo, Trento, Italy
| | - Alessandro Armini
- §Functional Proteomics Lab., Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Assunta Gagliardi
- §Functional Proteomics Lab., Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Michele Tomasi
- From the ‡Synthetic and Structural Vaccinology Unit, CIBIO, University of Trento, Via Sommarive, 9, 38123 Povo, Trento, Italy
| | - Matteo Parri
- ¶Toscana Life Sciences Scientific Park, Via Fiorentina, 1 53100, Siena, Italy
| | - Valeria Cafardi
- From the ‡Synthetic and Structural Vaccinology Unit, CIBIO, University of Trento, Via Sommarive, 9, 38123 Povo, Trento, Italy
| | - Serena Bonomi
- From the ‡Synthetic and Structural Vaccinology Unit, CIBIO, University of Trento, Via Sommarive, 9, 38123 Povo, Trento, Italy
| | - Luisa Ganfini
- From the ‡Synthetic and Structural Vaccinology Unit, CIBIO, University of Trento, Via Sommarive, 9, 38123 Povo, Trento, Italy
| | - Francesca Zerbini
- From the ‡Synthetic and Structural Vaccinology Unit, CIBIO, University of Trento, Via Sommarive, 9, 38123 Povo, Trento, Italy
| | - Ilaria Zanella
- From the ‡Synthetic and Structural Vaccinology Unit, CIBIO, University of Trento, Via Sommarive, 9, 38123 Povo, Trento, Italy
| | - Chiara Carnemolla
- §Functional Proteomics Lab., Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Luca Bini
- §Functional Proteomics Lab., Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Alberto Grandi
- ¶Toscana Life Sciences Scientific Park, Via Fiorentina, 1 53100, Siena, Italy
| | - Guido Grandi
- From the ‡Synthetic and Structural Vaccinology Unit, CIBIO, University of Trento, Via Sommarive, 9, 38123 Povo, Trento, Italy;
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25
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Mumtaz MW, Hamid AA, Akhtar MT, Anwar F, Rashid U, AL-Zuaidy MH. An overview of recent developments in metabolomics and proteomics – phytotherapic research perspectives. FRONTIERS IN LIFE SCIENCE 2017. [DOI: 10.1080/21553769.2017.1279573] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Muhammad Waseem Mumtaz
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Malaysia
- Department of Chemistry, Faculty of Science, University of Gujrat, Gujrat, Pakistan
| | - Azizah Abdul Hamid
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Malaysia
| | - Muhammad Tayyab Akhtar
- Institute of Bioscience, Laboratory of Natural Products, Universiti Putra Malaysia, Serdang, Malaysia
| | - Farooq Anwar
- Department of Chemistry, University of Sargodha, Sargodha, Pakistan
| | - Umer Rashid
- Institute of Advanced Technology, Universiti Putra Malaysia, Serdang, Malaysia
| | - Mizher Hezam AL-Zuaidy
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Malaysia
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26
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Zhao J, Zhang M, He P, Zhao J, Chen Y, Qi J, Wang Y. Proteomic analysis of oridonin-induced apoptosis in multiple myeloma cells. Mol Med Rep 2017; 15:1807-1815. [PMID: 28259901 DOI: 10.3892/mmr.2017.6213] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Accepted: 12/13/2016] [Indexed: 11/06/2022] Open
Abstract
Oridonin is a diterpenoid compound isolated from the medicinal herb Rabdosia rubescens, and has shown marked antitumor effects against different types of cancer. However, the definitive systematic molecular mechanism underlying the antitumor activity of oridonin in multiple myeloma remains to be elucidated. In the present study, cell viability and cytotoxicity were examined to determine the appropriate concentration for proteomic investigation. In addition, cell apoptosis was evaluated using flow cytometry and transmission electron microscopy. A proteomic investigation using a two‑dimensional electrophoresis system and mass spectrometry was performed to identify and characterize the global proteome of the apoptosis induced by oridonin. Of the proteins identified, seven were involved in the anticancer effects of oridonin. Regulation of the expression and function of target proteins, stathmin, dihydrofolate reductase and pyruvate dehydrogenase E1β, may be potential, therapeutic strategies to effectively treat multiple myeloma. These findings provide novel information on the molecular mechanisms underlying the anticancer properties of oridonin in multiple myeloma.
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Affiliation(s)
- Jing Zhao
- Department of Hematology, The First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Mei Zhang
- Department of Hematology, The First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Pengcheng He
- Department of Hematology, The First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Junjie Zhao
- Department of Genetics and Molecular Biology, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Ying Chen
- Department of Hematology, The First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Jun Qi
- Institute of Xi'an Blood Bank, Shaanxi Blood Center, Xi'an, Shaanxi 710061, P.R. China
| | - Yuan Wang
- Department of Hematology, The First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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27
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Papa F, Lippolis R, Sardaro N, Gnoni A, Scacco S. All trans retinoic acid depresses the content and activity of the mitochondrial ATP synthase in human keratinocytes. Biochem Biophys Res Commun 2017; 482:301-304. [PMID: 27856255 DOI: 10.1016/j.bbrc.2016.11.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 11/11/2016] [Indexed: 12/12/2022]
Abstract
Proteomic analysis shows that treatment of keratinocytes cultures with all trans retinoic acid (ATRA), under condition in which it inhibits cell growth, results in marked decrease of the level of the F1-β subunit of the catalytic sector of the mitochondrial FoF1 ATP synthase complex. Enzymatic analysis shows in ATRA-treated keratinocytes a consistent depression of the ATPase activity, with decreased olygomycin sensitivity, indicating an overall alteration of the ATP synthase complex. These findings, together with the previously reported inhibition of respiratory complex I, show that depression of the activity of oxidative phosphorylation enzymes is involved in the cell growth inhibitory action of ATRA.
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Affiliation(s)
- F Papa
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University 'A. Moro', Bari, Italy
| | - R Lippolis
- Institute of Biomembranes and Bioenergetics, Italian National Research Council (CNR), Via G. Amendola 165/A, Italy
| | - N Sardaro
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University 'A. Moro', Bari, Italy
| | - A Gnoni
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University 'A. Moro', Bari, Italy
| | - S Scacco
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University 'A. Moro', Bari, Italy.
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28
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Nardiello D, Prattichizzo C, Rocchetti MT, Gesualdo L, Centonze D. Nano-LC-MS/MS for the identification of proteins trapped in sorbent cartridges used for coupled plasma filtration-adsorption treatments of healthy pigs. J Pharm Biomed Anal 2017; 132:215-222. [PMID: 27768920 DOI: 10.1016/j.jpba.2016.10.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 10/05/2016] [Accepted: 10/09/2016] [Indexed: 11/25/2022]
Abstract
A dedicated proteomic approach based on nano-Liquid Chromatography coupled with tandem mass spectrometry in ion trap is proposed for the analysis of proteins trapped in sorbent resin cartridges used to remove inflammatory mediators from blood by coupled plasma filtration adsorption (CPFA). The final purpose of the proposed proteomic approach was to obtain a reference map of plasma proteins trapped in CPFA sorbents used for the extracorporeal blood purification of healthy pigs, with the potential impact to design new bio-filters able to control the inflammatory imbalance under pathological conditions, such as severe sepsis. The five main steps of the proteomics analysis, (i) protein extraction from resin cartridges, (ii) two-dimensional gel electrophoresis (2D-PAGE) for protein separation and profiling, (iii) in-gel proteolytic digestion, (iv) tandem mass analysis of peptides resulting from enzymatic cleavage and (v) bioinformatics, for protein identification and post-processing validation of MS/MS data sets, have been carefully evaluated. Prior to electrophoresis, the efficiency of different extraction solutions and procedures to recovery plasma proteins trapped into the sorbents were tested. Then, a rapid one-step procedure for protein extraction was optimized. Protein bands corresponding to the main plasma proteins, namely porcine serum albumin, serotransferrin and immunoglobulins, were identified. In addition, the presence of haptoglobin, hemopexin, α-1 acid glycoprotein and fetuin-A, that are known as acute-phase reaction proteins, was observed, suggesting that CPFA resins led to a non-specifically protein depletion from plasma, rather than targeting specific molecules.
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Affiliation(s)
- Donatella Nardiello
- Dipartimento di Scienze Agrarie, degli Alimenti e dell'Ambiente and CSRA- Centro Servizi di Ricerca Applicata, Università degli Studi di Foggia, Via Napoli, 25 - 71122 Foggia, Italy.
| | - Clelia Prattichizzo
- Dipartimento di Scienze Mediche e Chirurgiche, Sezione di Nefrologia, Dialisi e Trapianto, Università degli Studi di Foggia, Viale Luigi Pinto, 1 - 71122 Foggia, Italy
| | - Maria Teresa Rocchetti
- Dipartimento di Emergenza e Trapianti di Organi, Università degli Studi di Bari, Piazza G. Cesare, 11, 70124 Bari, Italy
| | - Loreto Gesualdo
- Dipartimento di Emergenza e Trapianti di Organi, Università degli Studi di Bari, Piazza G. Cesare, 11, 70124 Bari, Italy
| | - Diego Centonze
- Dipartimento di Scienze Agrarie, degli Alimenti e dell'Ambiente and CSRA- Centro Servizi di Ricerca Applicata, Università degli Studi di Foggia, Via Napoli, 25 - 71122 Foggia, Italy
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Simultaneous Two-Dimensional Difference Gel Electrophoresis (2D-DIGE) Analysis of Two Distinct Proteomes. Methods Mol Biol 2017; 1546:205-212. [PMID: 27896770 DOI: 10.1007/978-1-4939-6730-8_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
This chapter describes the basics, applications, and limitations of two-dimensional gel electrophoresis (2DE) and two-dimensional difference gel electrophoresis (2D-DIGE) for multiplex analysis of distinct proteomes. We also propose a basic protocol for 2D-DIGE, technique that allows the analysis of paired protein extracts, which are labeled with fluorescent Cy3 and Cy5 dyes and electrophoresed with a Cy2-labeled standard extract on the same 2DE gels. Scanning the gels at wavelengths specific for each dye allows direct overlay the two different proteomes and the differences in abundance of specific protein spots can be determined.
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Giglio M, Ituarte S, Pasquevich M, Heras H. The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteins. CAN J ZOOL 2016. [DOI: 10.1139/cjz-2016-0049] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The freshwater snails Pomacea Perry, 1810 lay conspicuous aerial egg clutches that are ignored by most predators. Egg biochemical defenses in the apple snail Pomacea canaliculata (Lamarck, 1822) are provided by multifunctional proteins. We analyzed the eggs of a sympatric species, Pomacea maculata Perry, 1810, studying the gross composition, toxicity, hemagglutinating activity, and its antinutritive and antidigestive properties. Eggs are mostly composed of polysaccharides (mainly galactogen) and proteins, followed by lipids and nonsoluble calcium. Two perivitellins account for ∼85% dry mass of the egg protein. The major lipids are phospholipids and sterols. A suite of potential defenses was determined, including strong lethal neurotoxicity on mice and moderate antidigestive and lectin activities. Remarkably, their polysaccharides were refractive to in vitro digestion by digestive glycosidases. This study characterized ∼99% of egg composition and identified multiple potential defenses, provided not only by proteins but also by polysaccharides. This is the first evidence to our knowledge that reserve sugars may be involved in defenses, giving further insight into the unusual reproductive strategy of these well-defended snail eggs.
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Affiliation(s)
- M.L. Giglio
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Universidad Nacional de La Plata (UNLP) – CONICET CCT – La Plata, Avenida 60 y 120, C.P. 1900, La Plata, Argentina
- Facultad de Ciencias Naturales y Museo, UNLP, La Plata, Avenida 122 y 60, C.P. 1900, La Plata, Argentina
| | - S. Ituarte
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Universidad Nacional de La Plata (UNLP) – CONICET CCT – La Plata, Avenida 60 y 120, C.P. 1900, La Plata, Argentina
| | - M.Y. Pasquevich
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Universidad Nacional de La Plata (UNLP) – CONICET CCT – La Plata, Avenida 60 y 120, C.P. 1900, La Plata, Argentina
- Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, UNLP, Avenida 60 y 120, C.P. 1900, La Plata, Argentina
| | - H. Heras
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Universidad Nacional de La Plata (UNLP) – CONICET CCT – La Plata, Avenida 60 y 120, C.P. 1900, La Plata, Argentina
- Cátedra de Química Biológica, Facultad de Ciencias Naturales y Museo, UNLP, Avenida 122 y 60, C.P. 1900, La Plata, Argentina
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Pröfrock D. Coupling Techniques and Orthogonal Combination of Mass Spectrometric Techniques. Metallomics 2016. [DOI: 10.1002/9783527694907.ch2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Daniel Pröfrock
- Helmholtz-Zentrum Geesthacht, Centre for Materials and Coastal Research; Department Marine Bioanalytical Chemistry, Institute of Coastal Research/Biogeochemistry in Coastal Seas; Max-Planck Str.1 21502 Geesthacht Germany
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Luddi A, Capaldo A, Focarelli R, Gori M, Morgante G, Piomboni P, De Leo V. Antioxidants reduce oxidative stress in follicular fluid of aged women undergoing IVF. Reprod Biol Endocrinol 2016; 14:57. [PMID: 27604261 PMCID: PMC5015196 DOI: 10.1186/s12958-016-0184-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 08/11/2016] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The status characterized by the imbalance between pro-oxidants and antioxidants molecules, defined as oxidative stress, has been suggested to be involved in the pathogenesis of subfertility in females. This study aims to evaluate the impact of a complete micronutrients supplementation on oxidative stress levels in follicular microenvironment as well as on in vitro fertilization (IVF) outcome. METHODS This preliminary study was conducted between January 2014 and July 2015 at the Siena University Hospital Infertility Clinic. Serum and follicular fluid were collected from infertile women aged > 39 years who underwent two in vitro fertilization cycles: in the first cycle they were treated with GnRH-antagonist protocol and gonadotropins for controlled ovarian hyperstimulation, whereas in the second cycle ovarian stimulation protocol was associated to micronutrients supplementation, starting three months earlier. Protein oxidation levels and total antioxidant capacity in serum and in follicular fluid were evaluated in IVF cycles with or without micronutrients supplementation. Differences in IVF outcome parameters were statistically evaluated. RESULTS Two-dimensional electrophoresis analyses demonstrated that when patients assumed micronutrients before IVF cycles, follicular fluid and serum proteins were protected from oxidative damage. Comparable results were obtained when total antioxidant capacity was measured. Moreover, the mean number of good quality oocytes retrieved when patients received micronutrients supplementation was significantly increased. CONCLUSION The additional treatment with micronutrients, starting three months before IVF cycles, protects the follicular microenvironment from oxidative stress, thus increasing the number of good quality oocytes recovered at the pick up.
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Affiliation(s)
- Alice Luddi
- Department Molecular and Developmental Medicine, University of Siena, Policlinico Le Scotte Viale Bracci, Siena, 53100 Italy
| | - Angela Capaldo
- Department Molecular and Developmental Medicine, University of Siena, Policlinico Le Scotte Viale Bracci, Siena, 53100 Italy
| | | | - Martina Gori
- Department Molecular and Developmental Medicine, University of Siena, Policlinico Le Scotte Viale Bracci, Siena, 53100 Italy
| | - Giuseppe Morgante
- Department Molecular and Developmental Medicine, University of Siena, Policlinico Le Scotte Viale Bracci, Siena, 53100 Italy
| | - Paola Piomboni
- Department Molecular and Developmental Medicine, University of Siena, Policlinico Le Scotte Viale Bracci, Siena, 53100 Italy
| | - Vincenzo De Leo
- Department Molecular and Developmental Medicine, University of Siena, Policlinico Le Scotte Viale Bracci, Siena, 53100 Italy
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Gagliardi A, Lamboglia E, Bianchi L, Landi C, Armini A, Ciolfi S, Bini L, Marri L. Proteomics analysis of a long-term survival strain of Escherichia coli K-12 exhibiting a growth advantage in stationary-phase (GASP) phenotype. Proteomics 2016; 16:963-72. [PMID: 26711811 DOI: 10.1002/pmic.201500314] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 11/24/2015] [Accepted: 12/23/2015] [Indexed: 01/14/2023]
Abstract
The aim of this work was the functional and proteomic analysis of a mutant, W3110 Bgl(+) /10, isolated from a batch culture of an Escherichia coli K-12 strain maintained at room temperature without addition of nutrients for 10 years. When the mutant was evaluated in competition experiments in co-culture with the wild-type, it exhibited the growth advantage in stationary phase (GASP) phenotype. Proteomes of the GASP mutant and its parental strain were compared by using a 2DE coupled with MS approach. Several differentially expressed proteins were detected and many of them were successful identified by mass spectrometry. Identified expression-changing proteins were grouped into three functional categories: metabolism, protein synthesis, chaperone and stress responsive proteins. Among them, the prevalence was ascribable to the "metabolism" group (72%) for the GASP mutant, and to "chaperones and stress responsive proteins" group for the parental strain (48%).
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Affiliation(s)
| | | | - Laura Bianchi
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Claudia Landi
- Department of Life Sciences, University of Siena, Siena, Italy
| | | | - Silvia Ciolfi
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Luca Bini
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Laura Marri
- Department of Life Sciences, University of Siena, Siena, Italy
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Husain I, Sharma A, Kumar S, Malik F. Purification and Characterization of Glutaminase Free Asparaginase from Enterobacter cloacae: In-Vitro Evaluation of Cytotoxic Potential against Human Myeloid Leukemia HL-60 Cells. PLoS One 2016; 11:e0148877. [PMID: 26891220 PMCID: PMC4758734 DOI: 10.1371/journal.pone.0148877] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 12/14/2015] [Indexed: 11/18/2022] Open
Abstract
Asparaginase is an important antileukemic agent extensively used worldwide but the intrinsic glutaminase activity of this enzymatic drug is responsible for serious life threatening side effects. Hence, glutaminase free asparaginase is much needed for upgradation of therapeutic index of asparaginase therapy. In the present study, glutaminase free asparaginase produced from Enterobacter cloacae was purified to apparent homogeneity. The purified enzyme was found to be homodimer of approximately 106 kDa with monomeric size of approximately 52 kDa and pI 4.5. Purified enzyme showed optimum activity between pH 7-8 and temperature 35-40°C, which is close to the internal environment of human body. Monovalent cations such as Na+ and K+ enhanced asparaginase activity whereas divalent and trivalent cations, Ca2+, Mg2+, Zn2+, Mn2+, and Fe3+ inhibited the enzyme activity. Kinetic parameters Km, Vmax and Kcat of purified enzyme were found to be 1.58×10-3 M, 2.22 IU μg-1 and 5.3 × 104 S-1, respectively. Purified enzyme showed prolonged in vitro serum (T1/2 = ~ 39 h) and trypsin (T1/2 = ~ 32 min) half life, which is therapeutically remarkable feature. The cytotoxic activity of enzyme was examined against a panel of human cancer cell lines, HL-60, MOLT-4, MDA-MB-231 and T47D, and highest cytotoxicity observed against HL-60 cells (IC50 ~ 3.1 IU ml-1), which was comparable to commercial asparaginase. Cell and nuclear morphological studies of HL-60 cells showed that on treatment with purified asparaginase symptoms of apoptosis were increased in dose dependent manner. Cell cycle progression analysis indicates that enzyme induces apoptosis by cell cycle arrest in G0/G1 phase. Mitochondrial membrane potential loss showed that enzyme also triggers the mitochondrial pathway of apoptosis. Furthermore, the enzyme was found to be nontoxic for human noncancerous cells FR-2 and nonhemolytic for human erythrocytes.
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Affiliation(s)
- Islam Husain
- Bacteriology Laboratory, Department of P. G. Studies and Research in Biological Science, Rani Durgavati University, Jabalpur, Madhya Pradesh, India
| | - Anjana Sharma
- Bacteriology Laboratory, Department of P. G. Studies and Research in Biological Science, Rani Durgavati University, Jabalpur, Madhya Pradesh, India
| | - Suresh Kumar
- Cancer Pharmacology Division, Indian Institute of Integrative Medicine, Jammu, India
| | - Fayaz Malik
- Cancer Pharmacology Division, Indian Institute of Integrative Medicine, Jammu, India
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Secretome Analysis of Metarhizium anisopliae Under Submerged Conditions Using Bombyx mori Chrysalis to Induce Expression of Virulence-Related Proteins. Curr Microbiol 2015; 72:220-227. [PMID: 26597214 DOI: 10.1007/s00284-015-0943-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 10/01/2015] [Indexed: 10/22/2022]
Abstract
The entomopathogenic fungus Metarhizium anisopliae is used to control insect pests. This species is specialized for the secretion of an enzymatic complex consisting of proteases, lipases, and chitinases related to pathogenicity and virulence. In this context, the secretomes of strains IBCB 167 and IBCB 384 of M. anisopliae var. anisopliae, grown under submerged fermentation in the presence of chrysalis as an inducer, were analyzed. Analysis of two-dimensional gels showed qualitative and quantitative differences between secreted proteins in both isolates. Around 102 protein spots were analyzed, and 76 % of the corresponding proteins identified by mass spectrometry were grouped into different classes (hydrolases, oxidases, reductases, isomerases, kinases, WSC domains, and hypothetical proteins). Thirty-three per cent of all the proteins analyzed were found to be common in both strains. Several virulence-related proteins were identified as proteases and mannosidases. Endo-N-acetyl-β-D-glucosaminidase expression was observed to be 10.14-fold higher for strain IBCB 384 than for strain IBCB 167, which may be an important contributor to the high virulence of IBCB 384 in Diatraea ssaccharalis. These results are important for elucidation of the host-pathogen relationship and the differences in virulence observed between the two strains.
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Mazzeo MF, Lippolis R, Sorrentino A, Liberti S, Fragnito F, Siciliano RA. Lactobacillus acidophilus-Rutin Interplay Investigated by Proteomics. PLoS One 2015; 10:e0142376. [PMID: 26544973 PMCID: PMC4636146 DOI: 10.1371/journal.pone.0142376] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 10/21/2015] [Indexed: 11/24/2022] Open
Abstract
Dietary polyphenols are bioactive molecules that beneficially affect human health, due to their anti-oxidant, anti-inflammatory, cardio-protective and chemopreventive properties. They are absorbed in a very low percentage in the small intestine and reach intact the colon, where they are metabolized by the gut microbiota. Although it is well documented a key role of microbial metabolism in the absorption of polyphenols and modulation of their biological activity, molecular mechanisms at the basis of the bacteria-polyphenols interplay are still poorly understood. In this context, differential proteomics was applied to reveal adaptive response mechanisms that enabled a potential probiotic Lactobacillus acidophilus strain to survive in the presence of the dietary polyphenol rutin. The response to rutin mainly modulated the expression level of proteins involved in general stress response mechanisms and, in particular, induced the activation of protein quality control systems, and affected carbohydrate and amino acid metabolism, protein synthesis and cell wall integrity. Moreover, rutin triggered the expression of proteins involved in oxidation-reduction processes.This study provides a first general view of the impact of dietary polyphenols on metabolic and biological processes of L. acidophilus.
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Affiliation(s)
| | - Rosa Lippolis
- Institute of Biomembranes and Bioenergetics, National Research Council, Bari, Italy
| | - Alida Sorrentino
- Institute of Food Sciences, National Research Council, Avellino, Italy
| | - Sarah Liberti
- Institute of Food Sciences, National Research Council, Avellino, Italy
- Department of Chemical Sciences, University of Naples Federico II, Naples, Italy
| | - Federica Fragnito
- Institute of Food Sciences, National Research Council, Avellino, Italy
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Calder B, Soares NC, de Kock E, Blackburn JM. Mycobacterial proteomics: analysis of expressed proteomes and post-translational modifications to identify candidate virulence factors. Expert Rev Proteomics 2015; 12:21-35. [PMID: 25603863 DOI: 10.1586/14789450.2015.1007046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The Mycobacterium tuberculosis bacillus has a number of unique features that make it a particularly effective human pathogen. Although genomic analysis has added to our current understanding of the molecular basis by which M. tuberculosis damages its host, proteomics may be better suited to describe the dynamic interactions between mycobacterial and host systems that underpin this disease. The M. tuberculosis proteome has been investigated using proteomics for over a decade, with increasingly sophisticated mass spectrometry technology and sensitive methods for comparative proteomic profiling. Deeper coverage of the M. tuberculosis proteome has led to the identification of hundreds of putative virulence determinants, as well as an unsurpassed coverage of post-translational modifications. Proteomics is therefore uniquely poised to contribute to our understanding of this pathogen, which may ultimately lead to better management of the disease.
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Affiliation(s)
- Bridget Calder
- Division of Medical Biochemistry, Faculty of Health Sciences, Institute of Infectious Diseases and Molecular Medicine (IDM), University of Cape Town, Anzio Rd, Observatory, Cape Town 7925, South Africa
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Lippolis R, Siciliano RA, Pacelli C, Ferretta A, Mazzeo MF, Scacco S, Papa F, Gaballo A, Dell'Aquila C, De Mari M, Papa S, Cocco T. Altered protein expression pattern in skin fibroblasts from parkin-mutant early-onset Parkinson's disease patients. Biochim Biophys Acta Mol Basis Dis 2015; 1852:1960-70. [PMID: 26096686 DOI: 10.1016/j.bbadis.2015.06.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 06/12/2015] [Accepted: 06/16/2015] [Indexed: 12/14/2022]
Abstract
Parkinson's disease (PD) is the most common neurodegenerative movement disorder caused primarily by selective degeneration of the dopaminergic neurons in substantia nigra. In this work the proteomes extracted from primary fibroblasts of two unrelated, hereditary cases of PD patients, with different parkin mutations, were compared with the proteomes extracted from commercial adult normal human dermal fibroblasts (NHDF) and primary fibroblasts from the healthy mother of one of the two patients. The results show that the fibroblasts from the two different cases of parkin-mutant patients display analogous alterations in the expression level of proteins involved in different cellular functions, like cytoskeleton structure-dynamics, calcium homeostasis, oxidative stress response, protein and RNA processing.
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Affiliation(s)
- Rosa Lippolis
- Institute of Biomembranes and Bioenergetics, Italian National Research Council (CNR), Via G. Amendola 165/A, Bari, Italy.
| | - Rosa Anna Siciliano
- Institute of Food Sciences, Italian National Research Council (CNR), Via Roma, 64, Avellino, Italy
| | - Consiglia Pacelli
- Department of Pharmacology, Faculty of Medicine, Universitè de Montreal, 2900 Boulevard Edouard-Montpetit, Montreal QCH3T1J4, Canada
| | - Anna Ferretta
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University 'A. Moro', Bari, Italy
| | - Maria Fiorella Mazzeo
- Institute of Food Sciences, Italian National Research Council (CNR), Via Roma, 64, Avellino, Italy
| | - Salvatore Scacco
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University 'A. Moro', Bari, Italy
| | - Francesco Papa
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University 'A. Moro', Bari, Italy
| | - Antonio Gaballo
- CNR NANOTEC-Istituto di Nanotecnologia, Polo di Nanotecnologia c/o Campus Ecotekne, via Monteroni, 73100 Lecce, Italy
| | | | | | - Sergio Papa
- Institute of Biomembranes and Bioenergetics, Italian National Research Council (CNR), Via G. Amendola 165/A, Bari, Italy
| | - Tiziana Cocco
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University 'A. Moro', Bari, Italy.
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Zienkiewicz K, Alché JDD, Zienkiewicz A, Tormo A, Castro AJ. Identification of olive pollen allergens using a fluorescence-based 2D multiplex method. Electrophoresis 2015; 36:1043-50. [PMID: 25640071 DOI: 10.1002/elps.201400508] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 12/17/2014] [Accepted: 01/03/2015] [Indexed: 12/21/2022]
Abstract
Olive (Olea europaea L.) pollen is a major health concern in the Mediterranean countries and some olive growing regions in America and Australia. The molecular variability of pollen allergens constitutes a handicap for commercial extract standardization, which is the base of current diagnosis and vaccination procedures. In this paper, we report a time-saving and plant material saving multiplex detection method for the rapid and simultaneous analysis of Ole e 1, Ole e 2, and Ole e 5 allergen polymorphism on a single blot. This method combines high-resolution 2DE techniques with high-sensitive fluorescence-based detection methods. Using this strategy, we were capable to identify a higher number of allergen forms compared with classical 1D approach. The use of fluorescent probes and the increased resolution of 2D blots avoided overlapping effects, and allow estimating the amount of individual allergen forms. In addition, the pattern and identity of the IgE-reactive proteins of either a population or individual patients allergic to olive pollen was also effortlessly determined in a single additional step. This flexible method might be extended to a higher number of olive allergens and cultivars, and is also applicable to other allergogenic plant species and sources.
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Affiliation(s)
- Krzysztof Zienkiewicz
- Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain; Department of Cell Biology, Institute of General and Molecular Biology, Nicolaus Copernicus University, Toruń, Poland
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Fraige K, González-Fernández R, Carrilho E, Jorrín-Novo JV. Metabolite and proteome changes during the ripening of Syrah and Cabernet Sauvignon grape varieties cultured in a nontraditional wine region in Brazil. J Proteomics 2015; 113:206-25. [DOI: 10.1016/j.jprot.2014.09.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 09/22/2014] [Accepted: 09/26/2014] [Indexed: 01/19/2023]
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Santucci L, Bruschi M, Ghiggeri GM, Candiano G. The latest advancements in proteomic two-dimensional gel electrophoresis analysis applied to biological samples. Methods Mol Biol 2015; 1243:103-125. [PMID: 25384742 DOI: 10.1007/978-1-4939-1872-0_6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Two-dimensional gel electrophoresis (2DE) is one of the fundamental approaches in proteomics for the separation and visualization of complex protein mixtures. Proteins can be analyzed by 2DE using isoelectric focusing (IEF) in the first dimension, combined to sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) in the second dimension, gel staining (silver and Coomassie), image analysis, and 2DE gel database. High-resolution 2DE can resolve up to 5,000 different proteins simultaneously (∼2,000 proteins routinely), and detect and quantify <1 ng of protein per spot. Here, we describe the latest developments for a more complete analysis of biological fluids.
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Affiliation(s)
- Laura Santucci
- Laboratory on Pathophysiology of Uremia, Istituto Giannina Gaslini, Largo G. Gaslini 5, Genoa, Italy
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Chen Y, Lin PX, Hsieh CL, Peng CC, Peng RY. The proteomic and genomic teratogenicity elicited by valproic acid is preventable with resveratrol and α-tocopherol. PLoS One 2014; 9:e116534. [PMID: 25551574 PMCID: PMC4281235 DOI: 10.1371/journal.pone.0116534] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 11/28/2014] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Previously, we reported that valproic acid (VPA), a common antiepileptic drug and a potent teratogenic, dowregulates RBP4 in chicken embryo model (CEM) when induced by VPA. Whether such teratogenicity is associated with more advanced proteomic and genomic alterations, we further performed this present study. METHODOLOGY/PRINCIPAL FINDINGS VPA (60 µM) was applied to 36 chicken embryos at HH stage 10 (day-1.5). Resveratrol (RV) and vitamin E (vit E) (each at 0.2 and 2.0 µM) were applied simultaneously to explore the alleviation effect. The proteins in the cervical muscles of the day-1 chicks were analyzed using 2D-electrophoresis and LC/MS/MS. While the genomics associated with each specific protein alteration was examined with RT-PCR and qPCR. At earlier embryonic stage, VPA downregulated PEBP1 and BHMT genes and at the same time upregulated MYL1, ALB and FLNC genes significantly (p<0.05) without affecting PKM2 gene. Alternatively, VPA directly inhibited the folate-independent (or the betaine-dependent) remethylation pathway. These features were effectively alleviated by RV and vit E. CONCLUSIONS VPA alters the expression of PEBP1, BHMT, MYL1, ALB and FLNC that are closely related with metabolic myopathies, myogenesis, albumin gene expression, and haemolytic anemia. On the other hand, VPA directly inhibits the betaine-dependent remethylation pathway. Taken together, VPA elicits hemorrhagic myoliposis via these action mechanisms, and RV and vit E are effective for alleviation of such adverse effects.
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Affiliation(s)
- Yeh Chen
- Research Institute of Biotechnology, Hungkuang University, 34 Chung-Chie Rd., Shalu County, Taichung Hsien, Taiwan 43302
| | - Ping-Xiao Lin
- Graduate Institute of Biotechnology, Changhua University of Education, 1 Jin-De Rd., Changhua, Taiwan 50007
| | - Chiu-Lan Hsieh
- Graduate Institute of Biotechnology, Changhua University of Education, 1 Jin-De Rd., Changhua, Taiwan 50007
| | - Chiung-Chi Peng
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, 250 Wu-Shing St., Taipei, Taiwan 11031
| | - Robert Y. Peng
- Research Institute of Biotechnology, Hungkuang University, 34 Chung-Chie Rd., Shalu County, Taichung Hsien, Taiwan 43302
- Research Institute of Medicinal Sciences, College of Medicine, Taipei Medical University, 250 Wu-Xing St., Taipei, Taiwan 11031
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Abstract
Separating proteins according to two different gel-electrophoretic methods not only increases the resolution power for highly complex samples when compared to one-dimensional separations, but is also a valuable tool for protein and protein complex characterization. There are a number of different electrophoresis methods which can be combined. The combination of isoelectric focusing under denaturing conditions and SDS polyacrylamide gel electrophoresis delivers the highest resolution of all bio-analytic techniques. This is a short review on the history and state of the art of two-dimensional electrophoresis methods, and contains some practical tips for high resolution 2D electrophoresis, which are based on several decades of experience with this method.
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Lin SY, Hsu WH, Lin CC, Chen CJ. Mass spectrometry-based proteomics in Chest Medicine, Gerontology, and Nephrology: subgroups omics for personalized medicine. Biomedicine (Taipei) 2014; 4:25. [PMID: 25520938 PMCID: PMC4264973 DOI: 10.7603/s40681-014-0025-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 07/30/2014] [Indexed: 12/12/2022] Open
Abstract
Mass spectrometry (MS) is currently the most promising tool for studying proteomics to investigate largescale proteins in a specific proteome. Emerging MS-based proteomics is widely applied to decipher complex proteome for discovering potential biomarkers. Given its growing usage in clinical medicine for biomarker discovery to predict, diagnose and confer prognosis, MS-based proteomics can benefit study of personalized medicine. In this review we introduce some fundamental MS theory and MS-based quantitative proteomic approaches as well as several representative clinical MS-based proteomics issues in Chest Medicine, Gerontology, and Nephrology.
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Affiliation(s)
- Shih-Yi Lin
- Institute of Clinical Medical Science, China Medical University College of Medicine, 404 Taichung, Taiwan
- Department of Internal Medicine, China Medical University Hospital, 404 Taichung, Taiwan
- Division of Nephrology and Kidney Institute, China Medical University Hospital, 404 Taichung, Taiwan
| | - Wu-Huei Hsu
- Institute of Clinical Medical Science, China Medical University College of Medicine, 404 Taichung, Taiwan
- Department of Internal Medicine, China Medical University Hospital, 404 Taichung, Taiwan
- Division of Pulmonary and Critical Care Medicine, China Medical University Hospital and China Medical University, 404 Taichung, Taiwan
| | - Cheng-Chieh Lin
- Institute of Clinical Medical Science, China Medical University College of Medicine, 404 Taichung, Taiwan
- Department of Family Medicine, China Medical University Hospital, 404 Taichung, Taiwan
- School of Medicine, College of Medicine China Medical University, No. 91, Hsueh Shih Road, 404 Taichung, Taiwan
| | - Chao-Jung Chen
- Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, No. 91, Hsueh-Shih Road, 402 Taichung, Taiwan
- Proteomics Core Laboratory, Department of Medical Research, China Medical University Hospital, 404 Taichung, Taiwan
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45
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Peng B, Lei N, Chai Y, Chan EKL, Zhang JY. CIP2A regulates cancer metabolism and CREB phosphorylation in non-small cell lung cancer. MOLECULAR BIOSYSTEMS 2014; 11:105-14. [PMID: 25325377 DOI: 10.1039/c4mb00513a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The cancerous inhibitor of protein phosphatase 2A (CIP2A) is a recently characterized endogenous inhibitor of the phosphatase activity of protein phosphatase 2A (PP2A), which extends the half-life of oncogenic protein c-myc and promotes in vivo tumor growth. The function of CIP2A in cancer progression is still poorly understood. To uncover the underlying mechanism of CIP2A-mediated cell proliferation, we implemented a two-dimensional electrophoresis (2DE)-based proteomic approach to examine lung cancer cell H1299 with and without CIP2A. We found 47 proteins differentially expressed where 19 proteins were upregulated and 28 proteins were downregulated. These were categorized into functional groups such as metabolism (25%), transcriptional and translational control (23%), and the signaling pathway and protein degradation (20%). On one hand, we validate our proteomic work by measuring the metabolic change. The knockdown of CIP2A decreased the expression of LDH-A as well as the enzymatic activity, accompanying with a decreased lactate production, an increased NADH/NAD+ ratio and ROS production. On the other hand, we found that CIP2A may regulate CREB activity through bioinformatics analysis. Our following experiments showed that, CIP2A positively regulated the phosphorylation of CREB in response to the serum treatment. Therefore, our proteomic study suggested that CIP2A mediates cancer progression through the metabolic pathway and intracellular signaling cascade.
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Affiliation(s)
- Bo Peng
- Border Biomedical Research Center & Department of Biological Sciences, The University of Texas at El Paso, El Paso, Texas 79968, USA.
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Piomboni P, Focarelli R, Capaldo A, Stendardi A, Cappelli V, Cianci A, La Marca A, Luddi A, De Leo V. Protein modification as oxidative stress marker in follicular fluid from women with polycystic ovary syndrome: the effect of inositol and metformin. J Assist Reprod Genet 2014; 31:1269-76. [PMID: 25113619 DOI: 10.1007/s10815-014-0307-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 07/21/2014] [Indexed: 01/08/2023] Open
Abstract
PURPOSE The purpose of this study was to evaluate the oxidative stress status (OS) of follicular fluid (FF) and the oocyte quality in women with polycystic ovary syndrome (PCOS) undergoing different ovarian stimulation protocols. METHODS FF samples were collected after gonadotropin administration in association or not with metformin or D-chiro-inositol (DCI). OS status was then evaluated by checking the follicular fluid protein oxidation profile after specific labeling of aminoacidic free-SH groups, and two-dimensional electrophoresis followed by qualitative and semiquantitative analysis. Oocyte quality was assessed by international morphological criteria. RESULTS Our data indicated that both treatments, even if to different extent, recovered a significantly high level of free-SH groups in FF proteins of PCOS women clearly indicating a decrease of OS level with respect to that found in FF samples from gonadotropins alone treated women. A higher number of good quality MII oocytes was also observed in DCI (P < 0.05) or metformin (P < 0.05) study groups in comparison to untreated control group. CONCLUSION A natural supplement and a drug both showed a statistically significant positive effect on follicular milieu by decreasing the oxidative damage on FF proteins, as well as in recovering good quality oocytes.
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Affiliation(s)
- P Piomboni
- Department of Molecular Medicine and Development, University of Siena, 53100, Siena, Italy
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47
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Chen LC, Wu JC, Tuan YF, Tseng YK, Hseu YC, Chen SC. Molecular mechanisms of 3,3'-dichlorobenzidine-mediated toxicity in HepG2 cells. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2014; 55:407-420. [PMID: 24604609 DOI: 10.1002/em.21858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 01/29/2014] [Accepted: 01/29/2014] [Indexed: 06/03/2023]
Abstract
3,3'-Dichlorobenzidine (DCB) (CAS 91-94-1), a synthetic, chlorinated, primary aromatic amine, is typically used as an intermediate in the manufacturing of pigments for printing inks, textiles, paints, and plastics. In this study, we found that DCB could significantly inhibit the cell viability of HepG2 cells in a concentration-dependent manner. Flow cytometry revealed that DCB induced G2/M-phase arrest and apoptosis in HepG2 cells. DCB treatment dramatically induced the dissipation of mitochondrial membrane potential (Δψm ) and enhanced the enzymatic activities of caspase-9 and caspase-3 whilst hardly affecting caspase-8 activity. Furthermore, Western blotting indicated that DCB-induced apoptosis was accompanied by the down-regulation of Bcl-2/Bax ratio. These results suggested that DCB led to cytotoxicity involving activation of mitochondrial-dependent apoptosis through Bax/Bcl-2 pathways in HepG2 cells. Furthermore, HepG2 cells treated with DCB showed significant DNA damage as supported by the concentration-dependent increase in olive tail moments as determined by the comet assay and by concentration- and time-dependent increase in histone H2AX phosphorylation (γ-H2AX). Two-dimensional-difference gel electrophoresis (2D-DIGE), combined with mass spectrometry (MS), was used to unveil the differences in protein expression between cells exposed to 25 µM or 100 µM of DCB for 24 hr and the control cells. Twenty-seven differentially expressed proteins involved in DNA repair, unfolded protein response, metabolism, cell signaling, and apoptosis were identified. Among these, 14-3-3 theta, CGI-46, and heat-shock 70 protein 4 were confirmed using Western blot assay. Taken together, these data suggest that DCB is capable of inducing DNA damage and some cellular stress responses in HepG2 cells, thus eventually leading to cell death by apoptosis.
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MESH Headings
- 3,3'-Dichlorobenzidine/adverse effects
- Apoptosis/drug effects
- Biomarkers, Tumor/metabolism
- Blotting, Western
- Carcinogens/pharmacology
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/metabolism
- Carcinoma, Hepatocellular/pathology
- Caspase 3/metabolism
- Caspase 8/metabolism
- Caspase 9/metabolism
- Cell Cycle/drug effects
- Cell Proliferation/drug effects
- Electrophoresis, Gel, Two-Dimensional
- Humans
- Liver Neoplasms/drug therapy
- Liver Neoplasms/metabolism
- Liver Neoplasms/pathology
- Membrane Potential, Mitochondrial/drug effects
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
- Tumor Cells, Cultured
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Affiliation(s)
- Lei-Chin Chen
- Department of Nutrition, I-Shou University, Kaohsiung City, Taiwan, Republic of China
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48
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Lee DY, Lee SS, Joo WA, Lee EJ, Kim CW. Analysis of Differentially Regulated Proteins in TM4 Cells Treated with Bisphenol A. Biosci Biotechnol Biochem 2014; 68:1201-8. [PMID: 15215581 DOI: 10.1271/bbb.68.1201] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BPA, bisphenol A, a monomer of epoxy resins and polycarbonate plastic, is used in many consumer products including the plastic linings of cans for food and babies' bottles. BPA has been reported to cause reproductive toxicity and affects cells in rats and mice at high doses. In this study, the effect of BPA on protein expression in TM4 cells (a mouse Sertoli cell line) known to play an essential role in Spermatogenesis was investigated by two-dimensional electrophoresis (2-DE). After 16 h exposure to 50, 100, 150, 200, and 250 microM of BPA, the viability of TM4 cells decreased to about 90, 85, 78, 55, and 30% of control respectively. Approximately 800 protein spots in TM4 cells were analyzed by 2-DE with pH 4-7 linear immobilized pH gradient (IPG) Dry Strip, and 11 proteins which showed significantly different expression levels were identified by matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS). Among these, HSP 27 and placental calcium binding protein may be proteins differentially expressed by BPA exposure.
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Affiliation(s)
- Do-Youn Lee
- Graduate School of Life Sciences and Biotechnology, Korea University, Seoul, Korea
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49
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Magdeldin S, Enany S, Yoshida Y, Xu B, Zhang Y, Zureena Z, Lokamani I, Yaoita E, Yamamoto T. Basics and recent advances of two dimensional- polyacrylamide gel electrophoresis. Clin Proteomics 2014; 11:16. [PMID: 24735559 PMCID: PMC3996944 DOI: 10.1186/1559-0275-11-16] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 03/20/2014] [Indexed: 12/19/2022] Open
Abstract
Gel- based proteomics is one of the most versatile methods for fractionating protein complexes. Among these methods, two dimensional- polyacrylamide gel electrophoresis (2-DE) represents a mainstay orthogonal approach, which is popularly used to simultaneously fractionate, identify, and quantify proteins when coupled with mass spectrometric identification or other immunological tests. Although 2-DE was first introduced more than three decades ago, several challenges and limitations to its utility still exist. This review discusses the principles of 2-DE as well as both recent methodological advances and new applications.
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Affiliation(s)
- Sameh Magdeldin
- Department of Structural Pathology, Institute of Nephrology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachi-dori, Niigata, Japan.,Department of Physiology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Shymaa Enany
- Department of Structural Pathology, Institute of Nephrology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachi-dori, Niigata, Japan.,Department of Microbiology and Immunology, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Yutaka Yoshida
- Department of Structural Pathology, Institute of Nephrology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachi-dori, Niigata, Japan
| | - Bo Xu
- Department of Structural Pathology, Institute of Nephrology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachi-dori, Niigata, Japan
| | - Ying Zhang
- Department of Structural Pathology, Institute of Nephrology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachi-dori, Niigata, Japan
| | | | | | - Eishin Yaoita
- Department of Structural Pathology, Institute of Nephrology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachi-dori, Niigata, Japan
| | - Tadashi Yamamoto
- Department of Structural Pathology, Institute of Nephrology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachi-dori, Niigata, Japan
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50
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Nebija D, Noe CR, Urban E, Lachmann B. Quality control and stability studies with the monoclonal antibody, trastuzumab: application of 1D- vs. 2D-gel electrophoresis. Int J Mol Sci 2014; 15:6399-411. [PMID: 24739811 PMCID: PMC4013636 DOI: 10.3390/ijms15046399] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 03/10/2014] [Accepted: 03/31/2014] [Indexed: 12/05/2022] Open
Abstract
Recombinant monoclonal antibodies (rmAbs) are medicinal products obtained by rDNA technology. Consequently, like other biopharmaceuticals, they require the extensive and rigorous characterization of the quality attributes, such as identity, structural integrity, purity and stability. The aim of this work was to study the suitability of gel electrophoresis for the assessment of charge heterogeneity, post-translational modifications and the stability of the therapeutic, recombinant monoclonal antibody, trastuzumab. One-dimensional, SDS-PAGE, under reducing and non-reducing conditions, and two-dimensional gel electrophoresis were used for the determination of molecular mass (Mr), the isoelectric point (pI), charge-related isoform patterns and the stability of trastuzumab, subjected to stressed degradation and long-term conditions. For the assessment of the influence of glycosylation in the charge heterogeneity pattern of trastuzumab, an enzymatic deglycosylation study has been performed using N-glycosidase F and sialidase, whereas carboxypeptidase B was used for the lysine truncation study. Experimental data documented that 1D and 2D gel electrophoresis represent fast and easy methods to evaluate the quality of biological medicinal products. Important stability parameters, such as the protein aggregation, can be assessed, as well.
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Affiliation(s)
- Dashnor Nebija
- Department of Pharmaceutical Chemistry, Medical Faculty, Rr. Bulevardi i Deshmoreve, n.n. 10000 Pristina, Kosovo.
| | - Christian R Noe
- Department of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria.
| | - Ernst Urban
- Department of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria.
| | - Bodo Lachmann
- Department of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria.
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