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Chong D, Jones NC, Schittenhelm RB, Anderson A, Casillas-Espinosa PM. Multi-omics Integration and Epilepsy: Towards a Better Understanding of Biological Mechanisms. Prog Neurobiol 2023:102480. [PMID: 37286031 DOI: 10.1016/j.pneurobio.2023.102480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/09/2023] [Accepted: 06/03/2023] [Indexed: 06/09/2023]
Abstract
The epilepsies are a group of complex neurological disorders characterised by recurrent seizures. Approximately 30% of patients fail to respond to anti-seizure medications, despite the recent introduction of many new drugs. The molecular processes underlying epilepsy development are not well understood and this knowledge gap impedes efforts to identify effective targets and develop novel therapies against epilepsy. Omics studies allow a comprehensive characterisation of a class of molecules. Omics-based biomarkers have led to clinically validated diagnostic and prognostic tests for personalised oncology, and more recently for non-cancer diseases. We believe that, in epilepsy, the full potential of multi-omics research is yet to be realised and we envisage that this review will serve as a guide to researchers planning to undertake omics-based mechanistic studies.
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Affiliation(s)
- Debbie Chong
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, 3004, Victoria, Australia
| | - Nigel C Jones
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, 3004, Victoria, Australia; Department of Medicine (The Royal Melbourne Hospital), The University of Melbourne, 3000, Victoria, Australia; Department of Neurology, Alfred Health, Melbourne, 3004, Victoria, Australia
| | - Ralf B Schittenhelm
- Monash Proteomics & Metabolomics Facility and Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, 3800, Australia
| | - Alison Anderson
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, 3004, Victoria, Australia; Department of Medicine (The Royal Melbourne Hospital), The University of Melbourne, 3000, Victoria, Australia; Department of Neurology, Alfred Health, Melbourne, 3004, Victoria, Australia
| | - Pablo M Casillas-Espinosa
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, 3004, Victoria, Australia; Department of Medicine (The Royal Melbourne Hospital), The University of Melbourne, 3000, Victoria, Australia; Department of Neurology, Alfred Health, Melbourne, 3004, Victoria, Australia
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2
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Pharmacologically induced absence seizures versus kindling in Wistar rats. North Clin Istanb 2020; 7:25-34. [PMID: 32232200 PMCID: PMC7103736 DOI: 10.14744/nci.2019.80664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 01/03/2019] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVE: This study aimed to investigate the effects of γ-butyrolactone (GBL), a prodrug of gamma-Hydroxybutyric acid -induced absence seizures on the development of kindling in Wistar rats. METHODS: Three groups of adult male Wistar rats under anesthesia were implanted with bilateral cortical recording electrodes for the GBL group (GBL) and/or bipolar stimulation electrodes into the right basolateral amygdala for the Kindling group (KI) alone and Kindling plus GBL group (GBL+KI). Rats in the KI and GBL+KI groups were stimulated twice daily at the afterdischarge threshold until they reached Racine’s stage 5 seizure state. The animals in the GBL + group had an i.p injection of GBL 20 minutes before each electrical stimulation, and the effects of GBL-induced seizures on the development of kindling were investigated. The animals in the GBL group were injected GBL twice daily i.p. for 15 days without receiving any electrical stimulation. RESULTS: The KI animals reached stage 5 seizure stage at 12th stimulations, whereas the GBL+KI rats reached at 27th stimulations. The mean numbers of stimulations needed for the development of the first stage 3, 4, or 5 generalized seizures were significantly higher in the GBL+KI group than the KI group. CONCLUSION: The resistance to amygdala kindling in the GBL model can be modulated by the absence seizure mechanism alone, without the intervention of an abnormal genetic background.
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3
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Gürol G, Demiralp DÖ, Yılmaz AK, Akman Ö, Ateş N, Karson A. Comparative proteomic approach in rat model of absence epilepsy. J Mol Neurosci 2014; 55:632-43. [PMID: 25323782 DOI: 10.1007/s12031-014-0402-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 08/11/2014] [Indexed: 12/21/2022]
Abstract
The aim of this study was to investigate cellular proteins in the pathogenesis of the genetic rat model of absence epilepsy. Protein spots were identified with peptide mass fingerprinting analysis using matrix-assisted laser desorption ionization time of flight mass spectrometry. Data were gathered from the frontoparietal cortex and thalamus of Wistar Albino Glaxo/Rij (WAG/Rij) and Wistar by using two-dimensional gel electrophoresis (2D-PAGE). Six proteins (Clathrin light chain-A protein, Transmembrane EMP24 Domain-Containing Protein, Stathmin-4, Myosin Light Chain4, Rheb, phosphoserine phosphatase) were found to be differentially expressed in the frontoparietal cortex of WAG/Rij and Wistar rats in both age groups. Another set of six proteins (Protein FAM89A and Oasl1, Gemin2, NuDEL1, Pur-beta, 3-alpha HSD) were found to be differentially expressed in the thalamus of WAG/Rij and Wistar rats. Findings from the frontoparietal cortex suggest the presence of altered serine metabolism and increased vesicular trafficking in the frontoparietal cortex of WAG/Rij rats compared with Wistar rats. These differences in the protein levels might reflect the crucial role of these proteins and related pathways in the generation of absence seizures. In the thalamic specimens, age-dependent changes in protein expression were remarkable, suggesting that this phenomenon may be a precursor or a consequence of absence seizures. Our findings further highlight the potential role of the mTOR signaling pathway in absence epilepsy.
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Affiliation(s)
- Gönül Gürol
- Department of Physiology, Faculty of Medicine, Sakarya University, Sakarya, Turkey
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Lagarrigue M, Alexandrov T, Dieuset G, Perrin A, Lavigne R, Baulac S, Thiele H, Martin B, Pineau C. New Analysis Workflow for MALDI Imaging Mass Spectrometry: Application to the Discovery and Identification of Potential Markers of Childhood Absence Epilepsy. J Proteome Res 2012; 11:5453-63. [DOI: 10.1021/pr3006974] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mélanie Lagarrigue
- Inserm U1085, IRSET, Proteomics Core Facility Biogenouest, Campus de Beaulieu,
F-35042 Rennes, France
| | - Theodore Alexandrov
- Center for Industrial Mathematics, University of Bremen, 28359 Bremen, Germany
- Steinbeis Innovation Center SCiLS, Richard-Dehmel-Str. 69 D, 28211
Bremen, Germany
| | - Gabriel Dieuset
- INSERM U1099, F-35000 Rennes, France
- Université de Rennes 1, LTSI, F-35000 Rennes, France
| | - Aline Perrin
- Inserm UMR S975/CNRS UMR 7225, Centre
de Recherche de l’Institut du Cerveau et de la Moelle Épinière,
Université Pierre et Marie Curie, Hôpital de la Pitié-Salpêtrière, F-75013
Paris, France
| | - Régis Lavigne
- Inserm U1085, IRSET, Proteomics Core Facility Biogenouest, Campus de Beaulieu,
F-35042 Rennes, France
| | - Stéphanie Baulac
- Inserm UMR S975/CNRS UMR 7225, Centre
de Recherche de l’Institut du Cerveau et de la Moelle Épinière,
Université Pierre et Marie Curie, Hôpital de la Pitié-Salpêtrière, F-75013
Paris, France
| | - Herbert Thiele
- Steinbeis Innovation Center SCiLS, Richard-Dehmel-Str. 69 D, 28211
Bremen, Germany
| | - Benoit Martin
- INSERM U1099, F-35000 Rennes, France
- Université de Rennes 1, LTSI, F-35000 Rennes, France
| | - Charles Pineau
- Inserm U1085, IRSET, Proteomics Core Facility Biogenouest, Campus de Beaulieu,
F-35042 Rennes, France
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Kraft R, Kahn A, Medina-Franco JL, Orlowski ML, Baynes C, López-Vallejo F, Barnard K, Maggiora GM, Restifo LL. A cell-based fascin bioassay identifies compounds with potential anti-metastasis or cognition-enhancing functions. Dis Model Mech 2012; 6:217-35. [PMID: 22917928 PMCID: PMC3529353 DOI: 10.1242/dmm.008243] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The actin-bundling protein fascin is a key mediator of tumor invasion and metastasis and its activity drives filopodia formation, cell-shape changes and cell migration. Small-molecule inhibitors of fascin block tumor metastasis in animal models. Conversely, fascin deficiency might underlie the pathogenesis of some developmental brain disorders. To identify fascin-pathway modulators we devised a cell-based assay for fascin function and used it in a bidirectional drug screen. The screen utilized cultured fascin-deficient mutant Drosophila neurons, whose neurite arbors manifest the 'filagree' phenotype. Taking a repurposing approach, we screened a library of 1040 known compounds, many of them FDA-approved drugs, for filagree modifiers. Based on scaffold distribution, molecular-fingerprint similarities, and chemical-space distribution, this library has high structural diversity, supporting its utility as a screening tool. We identified 34 fascin-pathway blockers (with potential anti-metastasis activity) and 48 fascin-pathway enhancers (with potential cognitive-enhancer activity). The structural diversity of the active compounds suggests multiple molecular targets. Comparisons of active and inactive compounds provided preliminary structure-activity relationship information. The screen also revealed diverse neurotoxic effects of other drugs, notably the 'beads-on-a-string' defect, which is induced solely by statins. Statin-induced neurotoxicity is enhanced by fascin deficiency. In summary, we provide evidence that primary neuron culture using a genetic model organism can be valuable for early-stage drug discovery and developmental neurotoxicity testing. Furthermore, we propose that, given an appropriate assay for target-pathway function, bidirectional screening for brain-development disorders and invasive cancers represents an efficient, multipurpose strategy for drug discovery.
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Affiliation(s)
- Robert Kraft
- Department of Neuroscience, University of Arizona, Tucson, AZ 85721, USA
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Ryu MJ, Liu Y, Zhong X, Du J, Peterson N, Kong G, Li H, Wang J, Salamat S, Chang Q, Zhang J. Oncogenic Kras expression in postmitotic neurons leads to S100A8-S100A9 protein overexpression and gliosis. J Biol Chem 2012; 287:22948-58. [PMID: 22577135 DOI: 10.1074/jbc.m112.357772] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Previous studies suggest that up-regulation of Ras signaling in neurons promotes gliosis and astrocytoma formation in a cell nonautonomous manner. However, the underlying mechanisms remain unknown. To address this question, we generated compound mice (LSL Kras G12D/+;CamKII-Cre) that express oncogenic Kras from its endogenous locus in postmitotic neurons after birth. These mice developed progressive gliosis, which is associated with hyperactivation of Ras signaling pathways. Microarray analysis identified S100A8 and S100A9 as two secreted molecules that are significantly overexpressed in mutant cortices. In contrast to their usual predominant expression in myeloid cells, we found that overexpression of S100A8 and S100A9 in the mutant cortex is primarily in neurons. This neuronal expression pattern is associated with increased infiltration of microglia in mutant cortex. Moreover, purified S100A8-S100A9 but not S100A8 or S100A9 alone promotes growth of primary astrocytes in vitro through both TLR4 and receptor of advanced glycation end product receptors. In summary, our results identify overexpression of S100A8-S100A9 in neurons as an early step in oncogenic Kras-induced gliosis. These molecules expressed in nonhematopoietic cells may be involved in tumorigenesis at a stage much earlier than what has been reported previously.
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Affiliation(s)
- Myung-Jeom Ryu
- McArdle Laboratory for Cancer Research, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
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van Amsterdam JGC, Brunt TM, McMaster MTB, Niesink RJM. Possible long-term effects of γ-hydroxybutyric acid (GHB) due to neurotoxicity and overdose. Neurosci Biobehav Rev 2012; 36:1217-27. [PMID: 22342779 DOI: 10.1016/j.neubiorev.2012.02.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Revised: 01/24/2012] [Accepted: 02/02/2012] [Indexed: 11/17/2022]
Abstract
In several countries, including the Netherlands, the use of GHB seems to be rising. GHB is regarded by recreational users as an innocent drug without any side effects. Recently, the number of patients in treatment due to GHB addiction sharply increased. In addition, various studies report incidents following risky GHB use or GHB overdosing. Other sedative drugs, like ketamine and alcohol have been shown to result in unintended neurotoxic harm at the level of memory and cognitive function. As outlined in the present review, GHB and ketamine have a common mode of action, which suggests that GHB may also lead to similar neurotoxicity as ketamine. GHB overdosing, as well as binge drinking (and high ketamine doses), induce profound coma which is probably neurotoxic for the brain especially in the maturing brain of young adults. It is therefore advocated to investigate possible long-term neurotoxic effects in recreational GHB users e.g. by studying the residual effects on cognition and memory.
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Affiliation(s)
- Jan G C van Amsterdam
- National Institute of Public Health and the Environment (RIVM), P.O. Box 1, 3720 BA Bilthoven, The Netherlands.
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8
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Danış Ö, Demir S, Günel A, Aker RG, Gülçebi M, Onat F, Ogan A. Changes in intracellular protein expression in cortex, thalamus and hippocampus in a genetic rat model of absence epilepsy. Brain Res Bull 2011; 84:381-8. [DOI: 10.1016/j.brainresbull.2011.02.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Revised: 01/03/2011] [Accepted: 02/01/2011] [Indexed: 11/28/2022]
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9
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van Nieuwenhuijzen PS, Kashem MA, Matsumoto I, Hunt GE, McGregor IS. A long hangover from party drugs: Residual proteomic changes in the hippocampus of rats 8 weeks after γ-hydroxybutyrate (GHB), 3,4-methylenedioxymethamphetamine (MDMA) or their combination. Neurochem Int 2010; 56:871-7. [DOI: 10.1016/j.neuint.2010.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2010] [Accepted: 03/05/2010] [Indexed: 10/19/2022]
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10
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Liu X, Wen F, Yang J, Chen L, Wei YQ. A review of current applications of mass spectrometry for neuroproteomics in epilepsy. MASS SPECTROMETRY REVIEWS 2010; 29:197-246. [PMID: 19598206 DOI: 10.1002/mas.20243] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The brain is unquestionably the most fascinating organ, and the hippocampus is crucial in memory storage and retrieval and plays an important role in stress response. In temporal lobe epilepsy (TLE), the seizure origin typically involves the hippocampal formation. Despite tremendous progress, current knowledge falls short of being able to explain its function. An emerging approach toward an improved understanding of the complex molecular mechanisms that underlie functions of the brain and hippocampus is neuroproteomics. Mass spectrometry has been widely used to analyze biological samples, and has evolved into an indispensable tool for proteomics research. In this review, we present a general overview of the application of mass spectrometry in proteomics, summarize neuroproteomics and systems biology-based discovery of protein biomarkers for epilepsy, discuss the methodology needed to explore the epileptic hippocampus proteome, and also focus on applications of ingenuity pathway analysis (IPA) in disease research. This neuroproteomics survey presents a framework for large-scale protein research in epilepsy that can be applied for immediate epileptic biomarker discovery and the far-reaching systems biology understanding of the protein regulatory networks. Ultimately, knowledge attained through neuroproteomics could lead to clinical diagnostics and therapeutics to lessen the burden of epilepsy on society.
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Affiliation(s)
- Xinyu Liu
- National Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
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11
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Takács E, Nyilas R, Szepesi Z, Baracskay P, Karlsen B, Røsvold T, Bjørkum AA, Czurkó A, Kovács Z, Kékesi AK, Juhász G. Matrix metalloproteinase-9 activity increased by two different types of epileptic seizures that do not induce neuronal death: a possible role in homeostatic synaptic plasticity. Neurochem Int 2010; 56:799-809. [PMID: 20303372 DOI: 10.1016/j.neuint.2010.03.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Revised: 03/08/2010] [Accepted: 03/10/2010] [Indexed: 01/26/2023]
Abstract
Matrix metalloproteases (MMPs) degrade or modify extracellular matrix or membrane-bound proteins in the brain. MMP-2 and MMP-9 are activated by treatments that result in a sustained neuronal depolarization and are thought to contribute to neuronal death and structural remodeling. At the synapse, MMP actions on extracellular proteins contribute to changes in synaptic efficacy during learning paradigms. They are also activated during epileptic seizures, and MMP-9 has been associated with the establishment of aberrant synaptic connections after neuronal death induced by kainate treatment. It remains unclear whether MMPs are activated by epileptic activities that do not induce cell death. Here we examine this point in two animal models of epilepsy that do not involve extensive cell damage. We detected an elevation of MMP-9 enzymatic activity in cortical regions of secondary generalization after focal seizures induced by 4-aminopyridine (4-AP) application in rats. Pro-MMP-9 levels were also higher in Wistar Glaxo Rijswijk (WAG/Rij) rats, a genetic model of generalized absence epilepsy, than they were in Sprague-Dawley rats, and this elevation was correlated with diurnally occurring spike-wave-discharges in WAG/Rij rats. The increased enzymatic activity of MMP-9 in these two different epilepsy models is associated with synchronized neuronal activity that does not induce widespread cell death. In these epilepsy models MMP-9 induction may therefore be associated with functions such as homeostatic synaptic plasticity rather than neuronal death.
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Affiliation(s)
- Eszter Takács
- Laboratory of Proteomics, Institute of Biology, Eötvös Loránd University, Budapest, Hungary.
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12
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Kim HJ, Kang HJ, Lee H, Lee ST, Yu MH, Kim H, Lee C. Identification of S100A8 and S100A9 as serological markers for colorectal cancer. J Proteome Res 2009; 8:1368-79. [PMID: 19186948 DOI: 10.1021/pr8007573] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In search of novel serological protein biomarkers for human colorectal cancer (CRC), we analyzed CRC tissues using two-dimensional difference in-gel electrophoresis (2D-DIGE) on a narrow range IPG strip (pH 5.5-6.7). By comparing tumor tissues with matched normal tissues in a pairwise manner (n = 6), we identified 34 up-regulated and 17 down-regulated spots with intensity changes greater than 2-fold (Student's t-test, p < 0.05). Expression of both mRNA and protein levels of four proteins, adenosylhomocysteinase, Nm23-H1, S100A8 and S100A9, in CRC tissues was further evaluated by semiquantitative RT-PCR and Western blot analysis. The results revealed that all four proteins were elevated in the tumor tissues. We also confirmed, by immunohistochemistry, that adenosylhomocysteinase and Nm23-H1 were overexpressed in tumor cell cytoplasm and that S100A8 and S100A9 proteins were strongly expressed in tumor infiltrating immune cells. Western blot analysis with fractionated plasma samples showed that S100A8 and S100A9 were significantly increased in the plasma of CRC patients (n = 77) and colorectal adenoma patients (n = 11), compared to healthy controls (n = 21). The area under a receiver operating characteristic (ROC) curve was 0.91 for S100A8 and 0.89 for S100A9, which was superior to the established tumor marker carcinoembryonic antigen with 0.78 for the area under the ROC curve. Some patients with inflammatory diseases such as pancreatitis also showed elevated levels of the proteins. Importantly, in comparison to the control group, both proteins showed a remarkable change at the early stage of cancer. Therefore, we suggest S100A8 and S100A9 as candidates for serological biomarkers in combination with other serum markers that aid CRC diagnosis.
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Affiliation(s)
- Hye-Jung Kim
- Life Sciences Division and Functional Proteomics Center, Korea Institute of Science and Technology, Seoul136-791, Korea
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Martins-de-Souza D, Maccarrone G, Reckow S, Falkai P, Schmitt A, Turck CW. Shotgun mass spectrometry analysis of the human thalamus proteome. J Sep Sci 2009; 32:1231-6. [DOI: 10.1002/jssc.200900008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kim DH, Bae J, Lee JW, Kim SY, Kim YH, Bae JY, Yi JK, Yu MH, Noh DY, Lee C. Proteomic analysis of breast cancer tissue reveals upregulation of actin-remodeling proteins and its relevance to cancer invasiveness. Proteomics Clin Appl 2008; 3:30-40. [PMID: 21136934 DOI: 10.1002/prca.200800167] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2008] [Indexed: 12/27/2022]
Abstract
There is an emerging interest in protein expression profiling with the aim of identifying novel diagnostic markers and therapeutic targets in breast cancer. We analyzed breast cancer tissues by 2-D DIGE using a narrow range IPG strip (pH 5.5-6.7) after the immunodepletion of serum albumin and Ig. Sixty-three protein spots were detected with more than ±1.8-fold differences (p <0.05 for three technical replicates) from a set of tissue samples in which three tumor and three nontumor samples were randomly selected from six breast cancer subjects and pooled separately. Of these, 53 proteins were successfully identified by MS. Among the proteins whose levels were increased, we identified three novel WD-repeat-motif-bearing proteins that have been known to be involved in actin remodeling: Arp2/3 complex subunit 2 (p34-Arc), coronin-1A and WD-repeat protein 1 (Wdr1). Significantly increased amounts of p34-Arc and coronin-1A in breast cancer were also shown by Western blot analysis of matched tumor and nontumor tissue samples (N = 11, p <0.05), and were consistent with the mRNA levels retrieved from publicly available microarray databases. The siRNA knockdown of p34-Arc attenuated the invasion of SK-BR3 breast cancer cells into Matrigel. In contrast, the overexpression of coronin-1A increased this invasive activity. Taken together, the cellular levels of p34-Arc and coronin-1A were linked to cancer development and migration. The data obtained from the present study provides new insight into the management of breast cancer.
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Affiliation(s)
- Dong-Hyun Kim
- Functional Proteomics Center, Korea Institute of Science and Technology, Seoul, Korea
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15
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Baracskay P, Szepesi Z, Orbán G, Juhász G, Czurkó A. Generalization of seizures parallels the formation of "dark" neurons in the hippocampus and pontine reticular formation after focal-cortical application of 4-aminopyridine (4-AP) in the rat. Brain Res 2008; 1228:217-28. [PMID: 18602900 DOI: 10.1016/j.brainres.2008.06.044] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2008] [Revised: 06/13/2008] [Accepted: 06/13/2008] [Indexed: 10/21/2022]
Abstract
Distribution and time course of the occurrence of "dark" neurons were compared with the EEG activity and behavior of rats during 4-aminopyridine (4-AP) induced epileptic seizures. A crystal of the K(+) channel blocker 4-AP (0.5 mg/kg) was placed onto the exposed parieto-occipital cortex of Halothane-anesthetized rats for 40 min. Thereafter, the anesthesia was discontinued and the behavioral signs of the epileptic seizure activity were observed. The presence of "dark" neurons was demonstrated by the sensitive silver method of Gallyas in rats sacrificed at 0, 3 and 6 h after the end of the 4-AP crystal application. The EEG activity was recorded in the rats with longer survival times. The EEG analysis revealed the generalization of the epileptic seizures. We found that the formation of "dark" neurons in the hippocampus and the pontine reticular formation paralleled the generalization of the seizures.
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Affiliation(s)
- Péter Baracskay
- Institute of Biology, Faculty of Natural Sciences, Eötvös Loránd University, H-1117 Budapest, Hungary
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16
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Activation of NF-κB by alloferon through down-regulation of antioxidant proteins and IκBα. Mol Cell Biochem 2008; 313:91-102. [DOI: 10.1007/s11010-008-9746-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2007] [Accepted: 03/13/2008] [Indexed: 01/11/2023]
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17
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Ryu MJ, Lee C, Kim J, Shin HS, Yu MH. Proteomic analysis of stargazer mutant mouse neuronal proteins involved in absence seizure. J Neurochem 2008; 104:1260-70. [DOI: 10.1111/j.1471-4159.2007.05100.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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18
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Chang JW, Kang UB, Kim DH, Yi JK, Lee JW, Noh DY, Lee C, Yu MH. Identification of circulating endorepellin LG3 fragment: Potential use as a serological biomarker for breast cancer. Proteomics Clin Appl 2007; 2:23-32. [DOI: 10.1002/prca.200780049] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2007] [Indexed: 11/12/2022]
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