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2. Dynamic Expression of Genes Encoding Ubiquitin Conjugating Enzymes (E2s) During Neuronal Differentiation and Maturation: Implications for Neurodevelopmental Disorders and Neurodegenerative Diseases.

Author

Paubel, Agathe, Marouillat, Sylviane, Dangoumau, Audrey, Maurel, Cindy, Haouari, Shanez, Blasco, Hélène, Corcia, Philippe, Laumonnier, Frédéric, Andres, Christian R., and Vourc'h, Patrick

Subjects
UBIQUITIN-conjugating enzymes, PHYSIOLOGY, TRANSCRIPTION factors, GENE expression, NEURONAL differentiation
Abstract

Background: The ubiquitination process plays a crucial role in neuronal differentiation and function. Numerous studies have focused on the expression and functions of E3 ligases during these different stages, far fewer on E2 conjugating enzymes. In mice, as in humans, these E2s belong to 17 conjugating enzyme families. Objectives: We analyzed by real-time PCR the expression dynamics of all known E2 genes during an in vitro differentiation of mouse hippocampal neuronal cultures, and after, we analyzed their stimulation with N-methyl-D-aspartate (NMDA). Results: We found that 36 of the 38 E2 genes were expressed in hippocampal neurons. Many were up-regulated during neuritogenesis and/or synaptogenesis stages, such as Ube2h, Ube2b, and Aktip. Rapid and delayed responses to NMDA stimulation were associated with the increased expression of several E2 genes, such as Ube2i, the SUMO-conjugating E2 enzyme. We also observed similar expression profiles within the same E2 gene family, consistent with the presence of similar transcription factor binding sites in their respective promoter sequences. Conclusions: Our study indicates that specific expression profiles of E2 genes are correlated with changes in neuronal differentiation and activity. A better understanding of the regulation and function of E2s is needed to better understand the role played by the ubiquitination process in physiological mechanisms and pathophysiological alterations involved in neurodevelopmental or neurodegenerative diseases. [ABSTRACT FROM AUTHOR]

Published
2024
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3. N-Terminal Fragments of TDP-43—In Vitro Analysis and Implication in the Pathophysiology of Amyotrophic Lateral Sclerosis and Frontotemporal Lobar Degeneration.

Author

Chami, Anna A., Bedja-Iacona, Léa, Richard, Elodie, Lanznaster, Debora, Marouillat, Sylviane, Veyrat-Durebex, Charlotte, Andres, Christian R., Corcia, Philippe, Blasco, Hélène, and Vourc'h, Patrick

Subjects
FRONTOTEMPORAL lobar degeneration, POST-translational modification, AMYOTROPHIC lateral sclerosis, CENTRAL nervous system, PROTEIN domains
Abstract

Abnormal cytoplasmic aggregates containing the TDP-43 protein and its fragments are present in the central nervous system of the majority of patients with amyotrophic lateral sclerosis (ALS) and in patients with frontotemporal lobar degeneration (FTLD). Many studies have focused on the C-terminal cleavage products of TDP-43 (CTFs), but few have focused on the N-terminal products (NTFs), yet several works and their protein domain composition support the involvement of NTFs in pathophysiology. In the present study, we expressed six NTFs of TDP-43, normally generated in vivo by proteases or following the presence of pathogenic genetic truncating variants, in HEK-293T cells. The N-terminal domain (NTD) alone was not sufficient to produce aggregates. Fragments containing the NTD and all or part of the RRM1 domain produced nuclear aggregates without affecting cell viability. Only large fragments also containing the RRM2 domain, with or without the glycine-rich domain, produced cytoplasmic aggregates. Of these, only NTFs containing even a very short portion of the glycine-rich domain caused a reduction in cell viability. Our results provide insights into the involvement of different TDP-43 domains in the formation of nuclear or cytoplasmic aggregates and support the idea that work on the development of therapeutic molecules targeting TDP-43 must also take into account NTFs and, in particular, those containing even a small part of the glycine-rich domain. [ABSTRACT FROM AUTHOR]

Published
2024
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5. Genome-wide association analyses identify new risk variants and the genetic architecture of amyotrophic lateral sclerosis.

Author

van Rheenen, Wouter, Shatunov, Aleksey, Dekker, Annelot M, McLaughlin, Russell L, Diekstra, Frank P, Pulit, Sara L, van der Spek, Rick AA, Võsa, Urmo, de Jong, Simone, Robinson, Matthew R, Yang, Jian, Fogh, Isabella, van Doormaal, Perry Tc, Tazelaar, Gijs HP, Koppers, Max, Blokhuis, Anna M, Sproviero, William, Jones, Ashley R, Kenna, Kevin P, van Eijk, Kristel R, Harschnitz, Oliver, Schellevis, Raymond D, Brands, William J, Medic, Jelena, Menelaou, Androniki, Vajda, Alice, Ticozzi, Nicola, Lin, Kuang, Rogelj, Boris, Vrabec, Katarina, Ravnik-Glavač, Metka, Koritnik, Blaž, Zidar, Janez, Leonardis, Lea, Grošelj, Leja Dolenc, Millecamps, Stéphanie, Salachas, François, Meininger, Vincent, de Carvalho, Mamede, Pinto, Susana, Mora, Jesus S, Rojas-García, Ricardo, Polak, Meraida, Chandran, Siddharthan, Colville, Shuna, Swingler, Robert, Morrison, Karen E, Shaw, Pamela J, Hardy, John, Orrell, Richard W, Pittman, Alan, Sidle, Katie, Fratta, Pietro, Malaspina, Andrea, Topp, Simon, Petri, Susanne, Abdulla, Susanne, Drepper, Carsten, Sendtner, Michael, Meyer, Thomas, Ophoff, Roel A, Staats, Kim A, Wiedau-Pazos, Martina, Lomen-Hoerth, Catherine, Van Deerlin, Vivianna M, Trojanowski, John Q, Elman, Lauren, McCluskey, Leo, Basak, A Nazli, Tunca, Ceren, Hamzeiy, Hamid, Parman, Yesim, Meitinger, Thomas, Lichtner, Peter, Radivojkov-Blagojevic, Milena, Andres, Christian R, Maurel, Cindy, Bensimon, Gilbert, Landwehrmeyer, Bernhard, Brice, Alexis, Payan, Christine AM, Saker-Delye, Safaa, Dürr, Alexandra, Wood, Nicholas W, Tittmann, Lukas, Lieb, Wolfgang, Franke, Andre, Rietschel, Marcella, Cichon, Sven, Nöthen, Markus M, Amouyel, Philippe, Tzourio, Christophe, Dartigues, Jean-François, Uitterlinden, Andre G, Rivadeneira, Fernando, Estrada, Karol, Hofman, Albert, Curtis, Charles, and Blauw, Hylke M

Subjects
PARALS Registry, SLALOM Group, SLAP Registry, FALS Sequencing Consortium, SLAGEN Consortium, NNIPPS Study Group, Humans, Amyotrophic Lateral Sclerosis, Genetic Predisposition to Disease, Proteins, Cytoskeletal Proteins, Myelin Proteins, Case-Control Studies, Cohort Studies, Mutation, Netherlands, Munc18 Proteins, Genome-Wide Association Study, Neurosciences, Rare Diseases, Brain Disorders, Biotechnology, Prevention, Human Genome, Neurodegenerative, Genetics, ALS, Aetiology, 2.1 Biological and endogenous factors, Biological Sciences, Medical and Health Sciences, Developmental Biology
Abstract

To elucidate the genetic architecture of amyotrophic lateral sclerosis (ALS) and find associated loci, we assembled a custom imputation reference panel from whole-genome-sequenced patients with ALS and matched controls (n = 1,861). Through imputation and mixed-model association analysis in 12,577 cases and 23,475 controls, combined with 2,579 cases and 2,767 controls in an independent replication cohort, we fine-mapped a new risk locus on chromosome 21 and identified C21orf2 as a gene associated with ALS risk. In addition, we identified MOBP and SCFD1 as new associated risk loci. We established evidence of ALS being a complex genetic trait with a polygenic architecture. Furthermore, we estimated the SNP-based heritability at 8.5%, with a distinct and important role for low-frequency variants (frequency 1-10%). This study motivates the interrogation of larger samples with full genome coverage to identify rare causal variants that underpin ALS risk.

Published
2016

7. Post-Translational Variants of Major Proteins in Amyotrophic Lateral Sclerosis Provide New Insights into the Pathophysiology of the Disease.

Author

Bedja-Iacona, Léa, Richard, Elodie, Marouillat, Sylviane, Brulard, Céline, Alouane, Tarek, Beltran, Stéphane, Andres, Christian R., Blasco, Hélène, Corcia, Philippe, Veyrat-Durebex, Charlotte, and Vourc'h, Patrick

Subjects
AMYOTROPHIC lateral sclerosis, UBIQUITINATION, PATHOLOGICAL physiology, PHOSPHORYLATION, ACETYLATION, POST-translational modification
Abstract

Post-translational modifications (PTMs) affecting proteins during or after their synthesis play a crucial role in their localization and function. The modification of these PTMs under pathophysiological conditions, i.e., their appearance, disappearance, or variation in quantity caused by a pathological environment or a mutation, corresponds to post-translational variants (PTVs). These PTVs can be directly or indirectly involved in the pathophysiology of diseases. Here, we present the PTMs and PTVs of four major amyotrophic lateral sclerosis (ALS) proteins, SOD1, TDP-43, FUS, and TBK1. These modifications involve acetylation, phosphorylation, methylation, ubiquitination, SUMOylation, and enzymatic cleavage. We list the PTM positions known to be mutated in ALS patients and discuss the roles of PTVs in the pathophysiological processes of ALS. In-depth knowledge of the PTMs and PTVs of ALS proteins is needed to better understand their role in the disease. We believe it is also crucial for developing new therapies that may be more effective in ALS. [ABSTRACT FROM AUTHOR]

Published
2024
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9. Metabo-lipidomics of Fibroblasts and Mitochondrial-Endoplasmic Reticulum Extracts from ALS Patients Shows Alterations in Purine, Pyrimidine, Energetic, and Phospholipid Metabolisms

Author

Veyrat-Durebex, Charlotte, Bris, Céline, Codron, Philippe, Bocca, Cinzia, Chupin, Stéphanie, Corcia, Philippe, Vourc’h, Patrick, Hergesheimer, Rudolf, Cassereau, Julien, Funalot, Benoit, Andres, Christian R, Lenaers, Guy, Couratier, Philippe, Reynier, Pascal, and Blasco, Hélène

Published
2019
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14. Combined Metabolomics and Transcriptomics Approaches to Assess the IL-6 Blockade as a Therapeutic of ALS: Deleterious Alteration of Lipid Metabolism

Author

Patin, Franck, Baranek, Thomas, Vourc'h, Patrick, Nadal-Desbarats, Lydie, Goossens, Jean-François, Marouillat, Sylviane, Dessein, Anne-Frédérique, Descat, Amandine, Hounoum, Blandine Madji, Bruno, Clément, Watier, Hervé, Si-Tahar, Mustafa, Leman, Samuel, Lecron, Jean-Claude, Andres, Christian R., Corcia, Philippe, and Blasco, Hélène

Published
2016
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24. Metabolic Profile and Pathological Alterations in the Muscle of Patients with Early-Stage Amyotrophic Lateral Sclerosis

Author

Lanznaster, Débora, primary, Bruno, Clément, additional, Bourgeais, Jérôme, additional, Emond, Patrick, additional, Zemmoura, Ilyess, additional, Lefèvre, Antoine, additional, Reynier, Pascal, additional, Eymieux, Sébastien, additional, Blanchard, Emmanuelle, additional, Vourc'h, Patrick, additional, Andres, Christian R., additional, Bakkouche, Salah Eddine, additional, Herault, Olivier, additional, Favard, Luc, additional, Corcia, Philippe, additional, and Blasco, Hélène, additional

Published
2022
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41. Analysis of shared common genetic risk between amyotrophic lateral sclerosis and epilepsy

Author

Schijven, D., Stevelink, R., Mccormack, M., van Rheenen, W., Luykx, J. J., Koeleman, B. P. C., Veldink, J. H., Aleksey, Shatunov, Mclaughlin, Russell L., van der Spek, Rick A. A., Alfredo, Iacoangeli, Kenna, Kevin P., van Eijk, Kristel R., Nicola, Ticozzi, Boris, Rogelj, Katarina, Vrabec, Metka, Ravnik-Glavač, Blaž, Koritnik, Janez, Zidar, Lea, Leonardis, Leja Dolenc Grošelj, Stéphanie, Millecamps, François, Salachas, Vincent, Meininger, Mamede de Carvalho, Susana, Pinto, Marta, Gromicho, Ana, Pronto-Laborinho, Mora, Jesus S., Ricardo, Rojas-García, Meraida, Polak, Siddharthan, Chandran, Shuna, Colville, Robert, Swingler, Morrison, Karen E., Shaw, Pamela J., John, Hardy, Orrell, Richard W., Alan, Pittman, Katie, Sidle, Pietro, Fratta, Andrea, Malaspina, Simon, Topp, Susanne, Petri, Susanna, Abdulla, Carsten, Drepper, Michael, Sendtner, Thomas, Meyer, Ophoff, Roel A., Staats, Kim A., Martina, Wiedau-Pazos, Catherine, Lomen-Hoerth, Van Deerlin, Vivianna M., Trojanowski, John Q., Lauren, Elman, Leo, Mccluskey, Nazli Basak, A., Thomas, Meitinger, Peter, Lichtner, Milena, Blagojevic-Radivojkov, Andres, Christian R., Gilbert, Bensimon, Bernhard, Landwehrmeyer, Alexis, Brice, Payan, Christine A. M., Safaa, Saker-Delye, Alexandra, Dürr, Wood, Nicholas W., Lukas, Tittmann, Wolfgang, Lieb, Andre, Franke, Marcella, Rietschel, Sven, Cichon, Nöthen, Markus M., Philippe, Amouyel, Christophe, Tzourio, Jean-François, Dartigues, Uitterlinden, Andre G., Fernando, Rivadeneira, Karol, Estrada, Albert, Hofman, Charles, Curtis, van der Kooi, Anneke J., Markus, Weber, Shaw, Christopher E., Smith, Bradley N., Daisy, Sproviero, Cristina, Cereda, Mauro, Ceroni, Luca, Diamanti, Roberto Del Bo, Stefania, Corti, Comi, Giacomo P., Sandra, D'Alfonso, Lucia, Corrado, Bertolin, Cinzia, Soraru', Gianni, Letizia, Mazzini, Viviana, Pensato, Cinzia, Gellera, Cinzia, Tiloca, Antonia, Ratti, Andrea, Calvo, Cristina, Moglia, Maura, Brunetti, Simona, Arcuti, Rosa, Capozzo, Chiara, Zecca, Christian, Lunetta, Silvana, Penco, Nilo, Riva, Alessandro, Padovani, Massimiliano, Filosto, Ian, Blair, Nicholson, Garth A., Rowe, Dominic B., Roger, Pamphlett, Kiernan, Matthew C., Julian, Grosskreutz, Witte, Otto W., Robert, Steinbach, Tino, Prell, Beatrice, Stubendorff, Ingo, Kurth, Hübner, Christian A., Nigel Leigh, P., Federico, Casale, Adriano, Chio, Ettore, Beghi, Elisabetta, Pupillo, Rosanna, Tortelli, Giancarlo, Logroscino, John, Powell, Ludolph, Albert C., Weishaupt, Jochen H., Wim, Robberecht, Philip Van Damme, Brown, Robert H., Glass, Jonathan D., Landers, John E., Orla, Hardiman, Andersen, Peter M., Philippe, Corcia, Patrick, Vourc'H, Vincenzo, Silani, van Es, Michael A., Jeroen Pasterkamp, R., Lewis, Cathryn M., Gerome, Breen, Ammar, Al-Chalabi, van den Berg, Leonard H., Veldink, Jan H., Daniela, Calini, Isabella, Fogh, Barbara, Castellotti, Franco, Taroni, Stella, Gagliardi, Giacomo, Comi, Sandra, D’Alfonso, Pegoraro, Elena, Giorgia, Querin, Francesca, Gerardi, Fabrizio, Rinaldi, Maria Sofia Cotelli, Luca, Chiveri, Maria Cristina Guaita, Patrizia, Perrone, Giancarlo, Comi, Carlo, Ferrarese, Lucio, Tremolizzo, Marialuisa, Delodovici, Giorgio, Bono, Stefania, Cammarosano, Antonio, Canosa, Dario, Cocito, Leonardo, Lopiano, Luca, Durelli, Bruno, Ferrero, Antonio, Bertolotto, Alessandro, Mauro, Luca, Pradotto, Roberto, Cantello, Enrica, Bersano, Dario, Giobbe, Maurizio, Gionco, Daniela, Leotta, Lucia, Appendino, Cavallo, Cavallo, Enrico, Odddenino, Claudio, Geda, Fabio, Poglio, Paola, Santimaria, Umberto, Massazza, Antonio, Villani, Roberto, Conti, Fabrizio, Pisano, Mario, Palermo, Franco, Vergnano, Paolo, Provera, Maria Teresa Penza, Marco, Aguggia, Nicoletta Di Vito, Piero, Meineri, Ilaria, Pastore, Paolo, Ghiglione, Danilo, Seliak, Nicola, Launaro, Giovanni, Astegiano, Bottacchi, Edo, Isabella Laura Simone, Stefano, Zoccolella, Michele, Zarrelli, Franco, Apollo, William, Camu, Jean Sebastien Hulot, Francois, Viallet, Philippe, Couratier, David, Maltete, Christine, Tranchant, Marie, Vidailhet, Bassel, Abou-Khalil, Pauls, Auce, Andreja, Avbersek, Melanie, Bahlo, David, J Balding, Thomas, Bast, Larry, Baum, Albert, J Becker, Felicitas, Becker, Bianca, Berghuis, Samuel, F Berkovic, Katja, E Boysen, Jonathan, P Bradfield, Lawrence, C Brody, Russell, J Buono, Ellen, Campbell, Gregory, D Cascino, Claudia, B Catarino, Gianpiero, L Cavalleri, Stacey, S Cherny, Krishna, Chinthapalli, Alison, J Coffey, Alastair, Compston, Antonietta, Coppola, Patrick, Cossette, John, J Craig, Gerrit-Jan de Haan, Peter De Jonghe, Carolien G, F de Kovel, Norman, Delanty, Chantal, Depondt, Orrin, Devinsky, Dennis, J Dlugos, Colin, P Doherty, Christian, E Elger, Johan, G Eriksson, Thomas, N Ferraro, Martha, Feucht, Ben, Francis, Jacqueline, A French, Saskia, Freytag, Verena, Gaus, Eric, B Geller, Christian, Gieger, Tracy, Glauser, Simon, Glynn, David, B Goldstein, Hongsheng, Gui, Youling, Guo, Kevin, F Haas, Hakon, Hakonarson, Kerstin, Hallmann, Sheryl, Haut, Erin, L Heinzen, Ingo, Helbig, Christian, Hengsbach, Helle, Hjalgrim, Michele, Iacomino, Andrés, Ingason, Michael, R Johnson, Reetta, Kälviäinen, Anne-Mari, Kantanen, Dalia, Kasperavičiūte, Dorothee Kasteleijn-Nolst Trenite, Heidi, E Kirsch, Robert, C Knowlton, Bobby P, C Koeleman, Roland, Krause, Martin, Krenn, Wolfram, S Kunz, Ruben, Kuzniecky, Patrick, Kwan, Dennis, Lal, Yu-Lung, Lau, Anna-Elina, Lehesjoki, Holger, Lerche, Costin, Leu, Dick, Lindhout, Warren, D Lo, Iscia, Lopes-Cendes, Daniel, H Lowenstein, Alberto, Malovini, Anthony, G Marson, Thomas, Mayer, Mark, Mccormack, James, L Mills, Nasir, Mirza, Martina, Moerzinger, Rikke, S Møller, Anne, M Molloy, Hiltrud, Muhle, Mark, Newton, Ping-Wing, Ng, Markus, M Nöthen, Peter, Nürnberg, Terence, J O’Brien, Karen, L Oliver, Aarno, Palotie, Faith, Pangilinan, Sarah, Peter, Slavé, Petrovski, Annapurna, Poduri, Michael, Privitera, Rodney, Radtke, Sarah, Rau, Philipp, S Reif, Eva, M Reinthaler, Felix, Rosenow, Josemir, W Sander, Thomas, Sander, Theresa, Scattergood, Steven, C Schachter, Christoph, J Schankin, Ingrid, E Scheffer, Bettina, Schmitz, Susanne, Schoch, Pak, C Sham, Jerry, J Shih, Graeme, J Sills, Sanjay, M Sisodiya, Lisa, Slattery, Alexander, Smith, David, F Smith, Michael, C Smith, Philip, E Smith, Anja C, M Sonsma, Doug, Speed, Michael, R Sperling, Bernhard, J Steinhoff, Ulrich, Stephani, Remi, Stevelink, Konstantin, Strauch, Pasquale, Striano, Hans, Stroink, Rainer, Surges, K Meng Tan, Liu Lin Thio, G Neil Thomas, Marian, Todaro, Rossana, Tozzi, Maria, S Vari, Eileen P, G Vining, Frank, Visscher, Sarah von Spiczak, Nicole, M Walley, Yvonne, G Weber, Zhi, Wei, Judith, Weisenberg, Christopher, D Whelan, Peter, Widdess-Walsh, Markus, Wolff, Stefan, Wolking, Wanling, Yang, Federico, Zara, Fritz, Zimprich, Project MinE ALS GWAS Consortium, International League Against Epilepsy Consortium on Complex Epilepsies, Department of Medical and Clinical Genetics, Centre of Excellence in Complex Disease Genetics, Aarno Palotie / Principal Investigator, Institute for Molecular Medicine Finland, Genomics of Neurological and Neuropsychiatric Disorders, Clinicum, Johan Eriksson / Principal Investigator, Department of General Practice and Primary Health Care, and HUS Helsinki and Uusimaa Hospital District

Subjects
Risk, 0301 basic medicine, Aging, Genetic correlation, Geriatrics & Gerontology, education, Genome-wide association study, Biology, ALS, Epilepsy, Amyotrophic Lateral Sclerosis, Gene Frequency, Humans, Genetic Variation, Genome-Wide Association Study, Negative Results, Article, 3124 Neurology and psychiatry, 03 medical and health sciences, 0302 clinical medicine, Genetic variation, medicine, Amyotrophic lateral sclerosis, Allele frequency, Genetics, Science & Technology, Mechanism (biology), General Neuroscience, 3112 Neurosciences, Neurosciences, medicine.disease, 3. Good health, Minor allele frequency, 030104 developmental biology, Neurology (clinical), Neurosciences & Neurology, Geriatrics and Gerontology, Life Sciences & Biomedicine, 030217 neurology & neurosurgery, Developmental Biology
Abstract

Because hyper-excitability has been shown to be a shared pathophysiological mechanism, we used the latest and largest genome-wide studies in amyotrophic lateral sclerosis (n = 36,052) and epilepsy (n = 38,349) to determine genetic overlap between these conditions. First, we showed no significant genetic correlation, also when binned on minor allele frequency. Second, we confirmed the absence of polygenic overlap using genomic risk score analysis. Finally, we did not identify pleiotropic variants in meta-analyses of the 2 diseases. Our findings indicate that amyotrophic lateral sclerosis and epilepsy do not share common genetic risk, showing that hyper-excitability in both disorders has distinct origins. ispartof: NEUROBIOLOGY OF AGING vol:92 ispartof: location:United States status: published

Published
2020
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42. Aβ1-42 and Tau as Potential Biomarkers for Diagnosis and Prognosis of Amyotrophic Lateral Sclerosis

Author

Lanznaster, Débora, Hergesheimer, Rudolf C., Bakkouche, Salah Eddine, Beltran, Stephane, Vourc’h, Patrick, Andres, Christian R., Dufour-Rainfray, Diane, Corcia, Philippe, and Blasco, Hélène

Subjects
Aged, 80 and over, Male, Amyloid beta-Peptides, Amyotrophic Lateral Sclerosis, tau Proteins, CSF, Middle Aged, Prognosis, Article, lcsh:Chemistry, total Tau, lcsh:Biology (General), lcsh:QD1-999, Case-Control Studies, mental disorders, Humans, biomarker, Aβ1-42, Female, ALS, lcsh:QH301-705.5, Biomarkers, Aged
Abstract

Amyotrophic lateral sclerosis (ALS) is the most common motor neuron disease, but its definitive diagnosis delays around 12 months. Although the research is highly active in the biomarker field, the absence of specific biomarkers for diagnosis contributes to this long delay. Another strategy of biomarker identification based on less specific but sensitive molecules may be of interest in clinical practice. For example, markers related to other neurodegenerative diseases such as Alzheimer’s disease (AD) could be fully explored. Here, we compared baseline levels of amyloidβ1-42 (Aβ1-42), total Tau, and phosphorylated-Tau (phospho-Tau) protein in the cerebrospinal fluid (CSF) of ALS patients to controls and correlated it with clinical parameters of ALS progression collected over 12 months. We observed increased levels of Aβ1-42 (controls: 992.9 ± 358.3 ng/L; ALS: 1277.0 ± 296.6 ng/L; p < 0.0001) and increased Aβ1-42/phospho-Tau ratio and Innotest Amyloid Tau Index (IATI) (both p < 0.0001). IATI and the phospho-Tau/total Tau ratio correlated positively with ALSFRS-R and weight at baseline. Multivariate analysis revealed that baseline ALSFRS-R was associated with Aβ1-42 and phospho-Tau/total Tau ratio (p = 0.0109 and p = 0.0013, respectively). Total Tau and phospho-Tau levels correlated negatively with ALSFRS-R variation at months 6 and 9, respectively (p = 0.02 and p = 0.04, respectively). Phospho-Tau/total Tau ratio correlated positively with ALSFRS-R variation at month 9 (p = 0.04). CSF levels of Aβ1-42 could be used as a complementary tool to ALS diagnosis, and total Tau and phospho-Tau levels may help establishing the prognosis of ALS. Further studies merit exploring the pathophysiological mechanisms associated with these markers. Despite their lack of specificity, phospho-Tau/total Tau and Aβ1-42 should be combined to other biological and clinical markers in order to improve ALS management.

Published
2020

45. A Rare Motor Neuron Deleterious Missense Mutation in the DPYSL3 (CRMP4) Gene is Associated with ALS

Author

Blasco, Hélène, Bernard-Marissal, Nathalie, Vourcʼh, Patrick, Guettard, Yves Olivier, Sunyach, Claire, Augereau, Olivier, Khederchah, Joelle, Mouzat, Kevin, Antar, Catherine, Gordon, Paul H., Veyrat-Durebex, Charlotte, Besson, Gérard, Andersen, Peter M., Salachas, François, Meininger, Vincent, Camu, William, Pettmann, Brigitte, Andres, Christian R., and Corcia, Philippe

Published
2013
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47. Dysregulations of Expression of Genes of the Ubiquitin/SUMO Pathways in an In Vitro Model of Amyotrophic Lateral Sclerosis Combining Oxidative Stress and SOD1 Gene Mutation

Author

Dangoumau, Audrey, primary, Marouillat, Sylviane, additional, Coelho, Roxane, additional, Wurmser, François, additional, Brulard, Céline, additional, Haouari, Shanez, additional, Laumonnier, Frédéric, additional, Corcia, Philippe, additional, Andres, Christian R., additional, Blasco, Hélène, additional, and Vourc’h, Patrick, additional

Published
2021
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48. Effect of familial clustering in the genetic screening of 235 French ALS families

Author

Corcia, Philippe, primary, Camu, William, additional, Brulard, Celine, additional, Marouillat, Sylviane, additional, Couratier, Philippe, additional, Camdessanché, Jean-Philippe, additional, Cintas, Pascal, additional, Verschueren, Annie, additional, Soriani, Marie-Helene, additional, Desnuelle, Claude, additional, Fleury, Marie-Céline, additional, Guy, Nathalie, additional, Cassereau, Julien, additional, Viader, Fausto, additional, Pittion-Vouyovitch, Sophie, additional, Danel, Veronique, additional, Kolev, Ivan, additional, Le Masson, Gwendal, additional, Beltran, Stephane, additional, Salachas, Francois, additional, Bernard, Emilien, additional, Pradat, Pierre-François, additional, Blasco, Hélène, additional, Lanznaster, Débora, additional, Hergesheimer, Rudolph, additional, Laumonnier, Frederic, additional, Andres, Christian R, additional, Meininger, Vincent, additional, and Vourc'h, Patrick, additional

Published
2021
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