793 results on '"Lesca, Gaetan"'
Search Results
2. Compound Heterozygous WARS2 Variants Including a Hypomorphic Allele Cause a Milder Phenotype of Complex Dopa Responsive Dystonia: Case Report and Review of the Literature
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Schneider, Vincent, Dupont, Gwendoline, Madinier, Guillaume, Ramond, Francis, Lesca, Gaetan, Thauvin-Robinet, Christel, and Thomas, Quentin
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- 2024
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3. Diagnostic utility of DNA methylation analysis in genetically unsolved pediatric epilepsies and CHD2 episignature refinement
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LaFlamme, Christy W., Rastin, Cassandra, Sengupta, Soham, Pennington, Helen E., Russ-Hall, Sophie J., Schneider, Amy L., Bonkowski, Emily S., Almanza Fuerte, Edith P., Allan, Talia J., Zalusky, Miranda Perez-Galey, Goffena, Joy, Gibson, Sophia B., Nyaga, Denis M., Lieffering, Nico, Hebbar, Malavika, Walker, Emily V., Darnell, Daniel, Olsen, Scott R., Kolekar, Pandurang, Djekidel, Mohamed Nadhir, Rosikiewicz, Wojciech, McConkey, Haley, Kerkhof, Jennifer, Levy, Michael A., Relator, Raissa, Lev, Dorit, Lerman-Sagie, Tally, Park, Kristen L., Alders, Marielle, Cappuccio, Gerarda, Chatron, Nicolas, Demain, Leigh, Genevieve, David, Lesca, Gaetan, Roscioli, Tony, Sanlaville, Damien, Tedder, Matthew L., Gupta, Sachin, Jones, Elizabeth A., Weisz-Hubshman, Monika, Ketkar, Shamika, Dai, Hongzheng, Worley, Kim C., Rosenfeld, Jill A., Chao, Hsiao-Tuan, Neale, Geoffrey, Carvill, Gemma L., Wang, Zhaoming, Berkovic, Samuel F., Sadleir, Lynette G., Miller, Danny E., Scheffer, Ingrid E., Sadikovic, Bekim, and Mefford, Heather C.
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- 2024
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4. Molecular consequences of PQBP1 deficiency, involved in the X-linked Renpenning syndrome
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Courraud, Jérémie, Engel, Camille, Quartier, Angélique, Drouot, Nathalie, Houessou, Ursula, Plassard, Damien, Sorlin, Arthur, Brischoux-Boucher, Elise, Gouy, Evan, Van Maldergem, Lionel, Rossi, Massimiliano, Lesca, Gaetan, Edery, Patrick, Putoux, Audrey, Bilan, Frederic, Gilbert-Dussardier, Brigitte, Atallah, Isis, Kalscheuer, Vera M., Mandel, Jean-Louis, and Piton, Amélie
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- 2024
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5. Exome sequencing of ATP1A3-negative cases of alternating hemiplegia of childhood reveals SCN2A as a novel causative gene
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Panagiotakaki, Eleni, Tiziano, Francesco D., Mikati, Mohamad A., Vijfhuizen, Lisanne S., Nicole, Sophie, Lesca, Gaetan, Abiusi, Emanuela, Novelli, Agnese, Di Pietro, Lorena, Harder, Aster V. E., Walley, Nicole M., De Grandis, Elisa, Poulat, Anne-Lise, Portes, Vincent Des, Lépine, Anne, Nassogne, Marie-Cecile, Arzimanoglou, Alexis, Vavassori, Rosaria, Koenderink, Jan, Thompson, Christopher H., George, Jr., Alfred L., Gurrieri, Fiorella, van den Maagdenberg, Arn M. J. M., and Heinzen, Erin L.
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- 2024
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6. Delineation of the adult phenotype of Coffin–Siris syndrome in 35 individuals
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Schmetz, Ariane, Lüdecke, Hermann-Josef, Surowy, Harald, Sivalingam, Sugirtahn, Bruel, Ange-Line, Caumes, Roseline, Charles, Perrine, Chatron, Nicolas, Chrzanowska, Krystyna, Codina-Solà, Marta, Colson, Cindy, Cuscó, Ivon, Denommé-Pichon, Anne-Sophie, Edery, Patrick, Faivre, Laurence, Green, Andrew, Heide, Solveig, Hsieh, Tzung-Chien, Hustinx, Alexander, Kleinendorst, Lotte, Knopp, Cordula, Kraft, Florian, Krawitz, Peter M., Lasa-Aranzasti, Amaia, Lesca, Gaetan, López-González, Vanesa, Maraval, Julien, Mignot, Cyril, Neuhann, Teresa, Netzer, Christian, Oehl-Jaschkowitz, Barbara, Petit, Florence, Philippe, Christophe, Posmyk, Renata, Putoux, Audrey, Reis, André, Sánchez-Soler, María José, Suh, Julia, Tkemaladze, Tinatin, Tran Mau Them, Frédéric, Travessa, André, Trujillano, Laura, Valenzuela, Irene, van Haelst, Mieke M., Vasileiou, Georgia, Vincent-Delorme, Catherine, Walther, Mona, Verde, Pablo, Bramswig, Nuria C., and Wieczorek, Dagmar
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- 2024
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7. BRAT1–related disorders: phenotypic spectrum and phenotype-genotype correlations from 97 patients
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Engel, Camille, Valence, Stéphanie, Delplancq, Geoffroy, Maroofian, Reza, Accogli, Andrea, Agolini, Emanuele, Alkuraya, Fowzan S., Baglioni, Valentina, Bagnasco, Irene, Becmeur-Lefebvre, Mathilde, Bertini, Enrico, Borggraefe, Ingo, Brischoux-Boucher, Elise, Bruel, Ange-Line, Brusco, Alfredo, Bubshait, Dalal K., Cabrol, Christelle, Cilio, Maria Roberta, Cornet, Marie-Coralie, Coubes, Christine, Danhaive, Olivier, Delague, Valérie, Denommé-Pichon, Anne-Sophie, Di Giacomo, Marilena Carmela, Doco-Fenzy, Martine, Engels, Hartmut, Cremer, Kirsten, Gérard, Marion, Gleeson, Joseph G., Heron, Delphine, Goffeney, Joanna, Guimier, Anne, Harms, Frederike L., Houlden, Henry, Iacomino, Michele, Kaiyrzhanov, Rauan, Kamien, Benjamin, Karimiani, Ehsan Ghayoor, Kraus, Dror, Kuentz, Paul, Kutsche, Kerstin, Lederer, Damien, Massingham, Lauren, Mignot, Cyril, Morris-Rosendahl, Déborah, Nagarajan, Lakshmi, Odent, Sylvie, Ormières, Clothilde, Partlow, Jennifer Neil, Pasquier, Laurent, Penney, Lynette, Philippe, Christophe, Piccolo, Gianluca, Poulton, Cathryn, Putoux, Audrey, Rio, Marlène, Rougeot, Christelle, Salpietro, Vincenzo, Scheffer, Ingrid, Schneider, Amy, Srivastava, Siddharth, Straussberg, Rachel, Striano, Pasquale, Valente, Enza Maria, Venot, Perrine, Villard, Laurent, Vitobello, Antonio, Wagner, Johanna, Wagner, Matias, Zaki, Maha S., Zara, Federizo, Lesca, Gaetan, Yassaee, Vahid Reza, Miryounesi, Mohammad, Hashemi-Gorji, Farzad, Beiraghi, Mehran, Ashrafzadeh, Farah, Galehdari, Hamid, Walsh, Christopher, Novelli, Antonio, Tacke, Moritz, Sadykova, Dinara, Maidyrov, Yerdan, Koneev, Kairgali, Shashkin, Chingiz, Capra, Valeria, Zamani, Mina, Van Maldergem, Lionel, Burglen, Lydie, and Piard, Juliette
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- 2023
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8. Cohort Expansion and Genotype-Phenotype Analysis of RAB11A-Associated Neurodevelopmental Disorder
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Acosta, Maria T., Adam, Margaret, Adams, David R., Alvarez, Raquel L., Alvey, Justin, Amendola, Laura, Andrews, Ashley, Ashley, Euan A., Bacino, Carlos A., Bademci, Guney, Balasubramanyam, Ashok, Baldridge, Dustin, Bale, Jim, Bamshad, Michael, Barbouth, Deborah, Bayrak-Toydemir, Pinar, Beck, Anita, Beggs, Alan H., Behrens, Edward, Bejerano, Gill, Bellen, Hugo J., Bennett, Jimmy, Berg-Rood, Beverly, Bernstein, Jonathan A., Berry, Gerard T., Bican, Anna, Bivona, Stephanie, Blue, Elizabeth, Bohnsack, John, Bonner, Devon, Botto, Lorenzo, Boyd, Brenna, Briere, Lauren C., Brokamp, Elly, Brown, Gabrielle, Burke, Elizabeth A., Burrage, Lindsay C., Butte, Manish J., Byers, Peter, Byrd, William E., Carey, John, Carrasquillo, Olveen, Cassini, Thomas, Peter Chang, Ta Chen, Chanprasert, Sirisak, Chao, Hsiao-Tuan, Clark, Gary D., Coakley, Terra R., Cobban, Laurel A., Cogan, Joy D., Coggins, Matthew, Cole, F. Sessions, Colley, Heather A., Cooper, Cynthia M., Cope, Heidi, Corona, Rosario, Craigen, William J., Crouse, Andrew B., Cunningham, Michael, D'Souza, Precilla, Dai, Hongzheng, Dasari, Surendra, Davis, Joie, Dayal, Jyoti G., Dell'Angelica, Esteban C., Dipple, Katrina, Doherty, Daniel, Dorrani, Naghmeh, Doss, Argenia L., Douine, Emilie D., Duncan, Laura, Earl, Dawn, Eckstein, David J., Emrick, Lisa T., Eng, Christine M., Falk, Marni, Fieg, Elizabeth L., Fisher, Paul G., Fogel, Brent L., Forghani, Irman, Gahl, William A., Glass, Ian, Gochuico, Bernadette, Goddard, Page C., Godfrey, Rena A., Golden-Grant, Katie, Grajewski, Alana, Hadley, Don, Hahn, Sihoun, Halley, Meghan C., Hamid, Rizwan, Hassey, Kelly, Hayes, Nichole, High, Frances, Hing, Anne, Hisama, Fuki M., Holm, Ingrid A., Hom, Jason, Horike-Pyne, Martha, Huang, Alden, Hutchison, Sarah, Introne, Wendy, Isasi, Rosario, Izumi, Kosuke, Jamal, Fariha, Jarvik, Gail P., Jarvik, Jeffrey, Jayadev, Suman, Jean-Marie, Orpa, Jobanputra, Vaidehi, Karaviti, Lefkothea, Kennedy, Jennifer, Ketkar, Shamika, Kiley, Dana, Kilich, Gonench, Kobren, Shilpa N., Kohane, Isaac S., Kohler, Jennefer N., Korrick, Susan, Kozuira, Mary, Krakow, Deborah, Krasnewich, Donna M., Kravets, Elijah, Lalani, Seema R., Lam, Byron, Lam, Christina, Lanpher, Brendan C., Lanza, Ian R., LeBlanc, Kimberly, Lee, Brendan H., Levitt, Roy, Lewis, Richard A., Liu, Pengfei, Liu, Xue Zhong, Longo, Nicola, Loo, Sandra K., Loscalzo, Joseph, Maas, Richard L., Macnamara, Ellen F., MacRae, Calum A., Maduro, Valerie V., Maghiro, AudreyStephannie, Mahoney, Rachel, Malicdan, May Christine V., Mamounas, Laura A., Manolio, Teri A., Mao, Rong, Maravilla, Kenneth, Marom, Ronit, Marth, Gabor, Martin, Beth A., Martin, Martin G., Martínez-Agosto, Julian A., Marwaha, Shruti, McCauley, Jacob, McConkie-Rosell, Allyn, McCray, Alexa T., McGee, Elisabeth, Mefford, Heather, Merritt, J. Lawrence, Might, Matthew, Mirzaa, Ghayda, Morava, Eva, Moretti, Paolo, Mulvihill, John, Nakano-Okuno, Mariko, Nelson, Stanley F., Newman, John H., Nicholas, Sarah K., Nickerson, Deborah, Nieves-Rodriguez, Shirley, Novacic, Donna, Oglesbee, Devin, Orengo, James P., Pace, Laura, Pak, Stephen, Pallais, J. Carl, Palmer, Christina G.S., Papp, Jeanette C., Parker, Neil H., Phillips, John A., III, Posey, Jennifer E., Potocki, Lorraine, Pusey Swerdzewski, Barbara N., Quinlan, Aaron, Rao, Deepak A., Raper, Anna, Raskind, Wendy, Renteria, Genecee, Reuter, Chloe M., Rives, Lynette, Robertson, Amy K., Rodan, Lance H., Rosenfeld, Jill A., Rosenwasser, Natalie, Rossignol, Francis, Ruzhnikov, Maura, Sacco, Ralph, Sampson, Jacinda B., Saporta, Mario, Schaechter, Judy, Schedl, Timothy, Schoch, Kelly, Scott, Daryl A., Scott, C. Ron, Shashi, Vandana, Shin, Jimann, Silverman, Edwin K., Sinsheimer, Janet S., Sisco, Kathy, Smith, Edward C., Smith, Kevin S., Solem, Emily, Solnica-Krezel, Lilianna, Solomon, Ben, Spillmann, Rebecca C., Stoler, Joan M., Sullivan, Kathleen, Sullivan, Jennifer A., Sun, Angela, Sutton, Shirley, Sweetser, David A., Sybert, Virginia, Tabor, Holly K., Tan, Queenie K.-G., Tan, Amelia L.M., Tekin, Mustafa, Telischi, Fred, Thorson, Willa, Tifft, Cynthia J., Toro, Camilo, Tran, Alyssa A., Ungar, Rachel A., Urv, Tiina K., Vanderver, Adeline, Velinder, Matt, Viskochil, Dave, Vogel, Tiphanie P., Wahl, Colleen E., Walker, Melissa, Wallace, Stephanie, Walley, Nicole M., Wambach, Jennifer, Wan, Jijun, Wang, Lee-kai, Wangler, Michael F., Ward, Patricia A., Wegner, Daniel, Hubshman, Monika Weisz, Wener, Mark, Wenger, Tara, Westerfield, Monte, Wheeler, Matthew T., Whitlock, Jordan, Wolfe, Lynne A., Worley, Kim, Xiao, Changrui, Yamamoto, Shinya, Yang, John, Zhang, Zhe, Zuchner, Stephan, Borroto, Maria Carla, Patel, Heena, Srivastava, Siddharth, Swanson, Lindsay C., Keren, Boris, Whalen, Sandra, Mignot, Cyril, Wang, Xiaodong, Chen, Qian, McLean, Scott, Littlejohn, Rebecca O., Emrick, Lisa, Attali, Ruben, Lesca, Gaetan, Acquaviva-Bourdain, Cecile, Sarret, Catherine, Seaver, Laurie H., Platzer, Konrad, Bartolomaeus, Tobias, Wünsch, Cornelia, Fischer, Susann, Rodriguez Barreto, Ana Maria, Granadillo, Jorge L., Schreiner, Elisabeth, Brunet, Theresa, Schatz, Ulrich A., Thiffault, Isabelle, Mullegama, Sureni V., Michaud, Jacques L., Hamdan, Fadi F., Rossignol, Elsa, and Campeau, Philippe M.
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- 2024
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9. Discovery of DNA methylation signature in the peripheral blood of individuals with history of antenatal exposure to valproic acid
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Haghshenas, Sadegheh, Putoux, Audrey, Reilly, Jack, Levy, Michael A., Relator, Raissa, Ghosh, Sourav, Kerkhof, Jennifer, McConkey, Haley, Edery, Patrick, Lesca, Gaetan, Besson, Alicia, Coubes, Christine, Willems, Marjolaine, Ruiz-Pallares, Nathalie, Barat-Houari, Mouna, Tizzano, Eduardo F., Valenzuela, Irene, Sabbagh, Quentin, Clayton-Smith, Jill, Jackson, Adam, O’Sullivan, James, Bromley, Rebecca, Banka, Siddharth, Genevieve, David, and Sadikovic, Bekim
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- 2024
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10. De Novo Variants in RAB11B Cause Various Degrees of Global Developmental Delay and Intellectual Disability in Children
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Ahmad, Natalie, Fazeli, Walid, Schließke, Sophia, Lesca, Gaetan, Gokce-Samar, Zeynep, Mekbib, Kedous Y., Jin, Sheng Chih, Burton, Jennifer, Hoganson, George, Petersen, Andrea, Gracie, Sara, Granger, Leslie, Bartels, Enrika, Oppermann, Henry, Kundishora, Adam, Till, Marianne, Milleret-Pignot, Clara, Dangerfield, Shane, Viskochil, David, Anderson, Katherine J., Palculict, Timothy Blake, Schnur, Rhonda E., Wentzensen, Ingrid M., Tiller, George E., Kahle, Kristopher T., Kunz, Wolfram S., Burkart, Sebastian, Simons, Matias, Sticht, Heinrich, Abou Jamra, Rami, and Neuser, Sonja
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- 2023
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11. PHGDH-related microcephalic dwarfism in two fetuses: Expanding the phenotypical spectrum of L-serine biosynthesis defect
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Cuinat, Silvestre, Quélin, Chloé, Pasquier, Laurent, Loget, Philippe, Aussel, Dominique, Odent, Sylvie, Laquerrière, Annie, Proisy, Maia, Mazoyer, Sylvie, Delous, Marion, Edery, Patrick, Chatron, Nicolas, Lesca, Gaetan, and Putoux, Audrey
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- 2023
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12. Early-onset autoimmunity associated with SOCS1 haploinsufficiency.
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Hadjadj, Jérôme, Castro, Carla Noemi, Tusseau, Maud, Stolzenberg, Marie-Claude, Mazerolles, Fabienne, Aladjidi, Nathalie, Armstrong, Martin, Ashrafian, Houman, Cutcutache, Ioana, Ebetsberger-Dachs, Georg, Elliott, Katherine S, Durieu, Isabelle, Fabien, Nicole, Fusaro, Mathieu, Heeg, Maximilian, Schmitt, Yohan, Bras, Marc, Knight, Julian C, Lega, Jean-Christophe, Lesca, Gaetan, Mathieu, Anne-Laure, Moreews, Marion, Moreira, Baptiste, Nosbaum, Audrey, Page, Matthew, Picard, Cécile, Ronan Leahy, T, Rouvet, Isabelle, Ryan, Ethel, Sanlaville, Damien, Schwarz, Klaus, Skelton, Andrew, Viallard, Jean-Francois, Viel, Sebastien, Villard, Marine, Callebaut, Isabelle, Picard, Capucine, Walzer, Thierry, Ehl, Stephan, Fischer, Alain, Neven, Bénédicte, Belot, Alexandre, and Rieux-Laucat, Frédéric
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T-Lymphocytes ,Humans ,Autoimmune Diseases ,Cytokines ,Pedigree ,Age of Onset ,Signal Transduction ,Autoimmunity ,Mutation ,Models ,Molecular ,Adolescent ,Adult ,Child ,Child ,Preschool ,Female ,Male ,STAT Transcription Factors ,Haploinsufficiency ,Suppressor of Cytokine Signaling 1 Protein ,Human Genome ,Rare Diseases ,Clinical Research ,Genetics ,Autoimmune Disease ,Aetiology ,2.1 Biological and endogenous factors ,Inflammatory and immune system - Abstract
Autoimmunity can occur when a checkpoint of self-tolerance fails. The study of familial autoimmune diseases can reveal pathophysiological mechanisms involved in more common autoimmune diseases. Here, by whole-exome/genome sequencing we identify heterozygous, autosomal-dominant, germline loss-of-function mutations in the SOCS1 gene in ten patients from five unrelated families with early onset autoimmune manifestations. The intracellular protein SOCS1 is known to downregulate cytokine signaling by inhibiting the JAK-STAT pathway. Accordingly, patient-derived lymphocytes exhibit increased STAT activation in vitro in response to interferon-γ, IL-2 and IL-4 that is reverted by the JAK1/JAK2 inhibitor ruxolitinib. This effect is associated with a series of in vitro and in vivo immune abnormalities consistent with lymphocyte hyperactivity. Hence, SOCS1 haploinsufficiency causes a dominantly inherited predisposition to early onset autoimmune diseases related to cytokine hypersensitivity of immune cells.
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- 2020
13. Widening of the genetic and clinical spectrum of Lamb–Shaffer syndrome, a neurodevelopmental disorder due to SOX5 haploinsufficiency
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Zawerton, Ash, Mignot, Cyril, Sigafoos, Ashley, Blackburn, Patrick R, Haseeb, Abdul, McWalter, Kirsty, Ichikawa, Shoji, Nava, Caroline, Keren, Boris, Charles, Perrine, Marey, Isabelle, Tabet, Anne-Claude, Levy, Jonathan, Perrin, Laurence, Hartmann, Andreas, Lesca, Gaetan, Schluth-Bolard, Caroline, Monin, Pauline, Dupuis-Girod, Sophie, Guillen Sacoto, Maria J, Schnur, Rhonda E, Zhu, Zehua, Poisson, Alice, El Chehadeh, Salima, Alembik, Yves, Bruel, Ange-Line, Lehalle, Daphné, Nambot, Sophie, Moutton, Sébastien, Odent, Sylvie, Jaillard, Sylvie, Dubourg, Christèle, Hilhorst-Hofstee, Yvonne, Barbaro-Dieber, Tina, Ortega, Lucia, Bhoj, Elizabeth J, Masser-Frye, Diane, Bird, Lynne M, Lindstrom, Kristin, Ramsey, Keri M, Narayanan, Vinodh, Fassi, Emily, Willing, Marcia, Cole, Trevor, Salter, Claire G, Akilapa, Rhoda, Vandersteen, Anthony, Canham, Natalie, Rump, Patrick, Gerkes, Erica H, Klein Wassink-Ruiter, Jolien S, Bijlsma, Emilia, Hoffer, Mariëtte JV, Vargas, Marcelo, Wojcik, Antonina, Cherik, Florian, Francannet, Christine, Rosenfeld, Jill A, Machol, Keren, Scott, Daryl A, Bacino, Carlos A, Wang, Xia, Clark, Gary D, Bertoli, Marta, Zwolinski, Simon, Thomas, Rhys H, Akay, Ela, Chang, Richard C, Bressi, Rebekah, Sanchez Russo, Rossana, Srour, Myriam, Russell, Laura, Goyette, Anne-Marie E, Dupuis, Lucie, Mendoza-Londono, Roberto, Karimov, Catherine, Joseph, Maries, Nizon, Mathilde, Cogné, Benjamin, Kuechler, Alma, Piton, Amélie, Klee, Eric W, Lefebvre, Véronique, Clark, Karl J, and Depienne, Christel
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Intellectual and Developmental Disabilities (IDD) ,Pediatric ,Genetics ,Brain Disorders ,Clinical Research ,Rare Diseases ,Human Genome ,Aetiology ,2.1 Biological and endogenous factors ,Adolescent ,Adult ,Animals ,Child ,Child ,Preschool ,DNA-Binding Proteins ,Female ,Genetic Predisposition to Disease ,Haploinsufficiency ,Humans ,Infant ,Intellectual Disability ,Language Development Disorders ,Male ,Mutation ,Missense ,Neurodevelopmental Disorders ,Pedigree ,Phenotype ,SOXD Transcription Factors ,Young Adult ,autism ,developmental delay ,intellectual disability ,epilepsy ,missense variants ,Deciphering Developmental DisorderStudy ,missense variants. ,Clinical Sciences ,Genetics & Heredity - Abstract
PurposeLamb-Shaffer syndrome (LAMSHF) is a neurodevelopmental disorder described in just over two dozen patients with heterozygous genetic alterations involving SOX5, a gene encoding a transcription factor regulating cell fate and differentiation in neurogenesis and other discrete developmental processes. The genetic alterations described so far are mainly microdeletions. The present study was aimed at increasing our understanding of LAMSHF, its clinical and genetic spectrum, and the pathophysiological mechanisms involved.MethodsClinical and genetic data were collected through GeneMatcher and clinical or genetic networks for 41 novel patients harboring various types ofSOX5 alterations. Functional consequences of selected substitutions were investigated.ResultsMicrodeletions and truncating variants occurred throughout SOX5. In contrast, most missense variants clustered in the pivotal SOX-specific high-mobility-group domain. The latter variants prevented SOX5 from binding DNA and promoting transactivation in vitro, whereas missense variants located outside the high-mobility-group domain did not. Clinical manifestations and severity varied among patients. No clear genotype-phenotype correlations were found, except that missense variants outside the high-mobility-group domain were generally better tolerated.ConclusionsThis study extends the clinical and genetic spectrum associated with LAMSHF and consolidates evidence that SOX5 haploinsufficiency leads to variable degrees of intellectual disability, language delay, and other clinical features.
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- 2020
14. Clinical spectrum of STX1B-related epileptic disorders.
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Cilio, Maria, Van Paesschen, Wim, Svendsen, Lene, Oates, Stephanie, Hughes, Elaine, Goyal, Sushma, Brown, Kathleen, Sifuentes Saenz, Margarita, Dorn, Thomas, Muhle, Hiltrud, Pagnamenta, Alistair, Vavoulis, Dimitris, Knight, Samantha, Taylor, Jenny, Canevini, Maria, Darra, Francesca, Gavrilova, Ralitza, Powis, Zöe, Tang, Shan, Marquetand, Justus, Armstrong, Martin, McHale, Duncan, Klee, Eric, Kluger, Gerhard, Lowenstein, Daniel, Weckhuysen, Sarah, Pal, Deb, Helbig, Ingo, Guerrini, Renzo, Thomas, Rhys, Rees, Mark, Lesca, Gaetan, Sisodiya, Sanjay, Weber, Yvonne, Lal, Dennis, Marini, Carla, Lerche, Holger, Schubert, Julian, Wolking, Stefan, May, Patrick, Mei, Davide, Møller, Rikke, Balestrini, Simona, Helbig, Katherine, Altuzarra, Cecilia, Chatron, Nicolas, Kaiwar, Charu, Stöhr, Katharina, Widdess-Walsh, Peter, Mendelsohn, Bryce, and Numis, Adam
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Adolescent ,Anticonvulsants ,Child ,Child ,Preschool ,Developmental Disabilities ,Drug Resistant Epilepsy ,Electroencephalography ,Epilepsies ,Partial ,Epileptic Syndromes ,Female ,High-Throughput Nucleotide Sequencing ,Humans ,Infant ,Infant ,Newborn ,Learning Disabilities ,Loss of Function Mutation ,Male ,Mutation ,Missense ,Phenotype ,Seizures ,Febrile ,Sequence Analysis ,DNA ,Syntaxin 1 ,Young Adult - Abstract
OBJECTIVE: The aim of this study was to expand the spectrum of epilepsy syndromes related to STX1B, encoding the presynaptic protein syntaxin-1B, and establish genotype-phenotype correlations by identifying further disease-related variants. METHODS: We used next-generation sequencing in the framework of research projects and diagnostic testing. Clinical data and EEGs were reviewed, including already published cases. To estimate the pathogenicity of the variants, we used established and newly developed in silico prediction tools. RESULTS: We describe 17 new variants in STX1B, which are distributed across the whole gene. We discerned 4 different phenotypic groups across the newly identified and previously published patients (49 patients in 23 families): (1) 6 sporadic patients or families (31 affected individuals) with febrile and afebrile seizures with a benign course, generally good drug response, normal development, and without permanent neurologic deficits; (2) 2 patients with genetic generalized epilepsy without febrile seizures and cognitive deficits; (3) 13 patients or families with intractable seizures, developmental regression after seizure onset and additional neuropsychiatric symptoms; (4) 2 patients with focal epilepsy. More often, we found loss-of-function mutations in benign syndromes, whereas missense variants in the SNARE motif of syntaxin-1B were associated with more severe phenotypes. CONCLUSION: These data expand the genetic and phenotypic spectrum of STX1B-related epilepsies to a diverse range of epilepsies that span the International League Against Epilepsy classification. Variants in STX1B are protean and contribute to many different epilepsy phenotypes, similar to SCN1A, the most important gene associated with fever-associated epilepsies.
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- 2019
15. Genetic causes of rare and common epilepsies: What should the epileptologist know?
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Lesca, Gaetan, Baumgartner, Tobias, Monin, Pauline, De Dominicis, Angela, Kunz, Wolfram S., and Specchio, Nicola
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- 2022
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16. Defining causal variants in rare epilepsies: an essential team effort between biomedical scientists, geneticists and epileptologists
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McTague, Amy, Brunklaus, Andreas, Barcia, Giulia, Varadkar, Sophia, Zuberi, Sameer M., Chatron, Nicolas, Parrini, Elena, Mei, Davide, Nabbout, Rima, and Lesca, Gaetan
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- 2022
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17. CDK13-related disorder: Report of a series of 18 previously unpublished individuals and description of an epigenetic signature
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Rouxel, Flavien, Relator, Raissa, Kerkhof, Jennifer, McConkey, Haley, Levy, Michael, Dias, Patricia, Barat-Houari, Mouna, Bednarek, Nathalie, Boute, Odile, Chatron, Nicolas, Cherik, Florian, Delahaye-Duriez, Andrée, Doco-Fenzy, Martine, Faivre, Laurence, Gauthier, Lucas W., Heron, Delphine, Hildebrand, Michael S., Lesca, Gaëtan, Lespinasse, James, Mazel, Benoit, Menke, Leonie A., Morgan, Angela T., Pinson, Lucile, Quelin, Chloe, Rossi, Massimiliano, Ruiz-Pallares, Nathalie, Tran-Mau-Them, Frederic, Van Kessel, Imke N., Vincent, Marie, Weber, Mathys, Willems, Marjolaine, Leguyader, Gwenael, Sadikovic, Bekim, and Genevieve, David
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- 2022
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18. Disruption and deletion of the proximal part of TCF4 are associated with mild intellectual disability: About three new patients
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Masson, Julie, Pons, Linda, Busa, Tiffany, Missirian, Chantal, Lines, Matthew, Tevissen, Hélène, Diguet, Flavie, Rollat-Farnier, Pierre-Antoine, Lesca, Gaétan, Sanlaville, Damien, and Schluth-Bolard, Caroline
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- 2022
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19. Gain-of-function and loss-of-function GABRB3 variants lead to distinct clinical phenotypes in patients with developmental and epileptic encephalopathies
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Absalom, Nathan L., Liao, Vivian W. Y., Johannesen, Katrine M. H., Gardella, Elena, Jacobs, Julia, Lesca, Gaetan, Gokce-Samar, Zeynep, Arzimanoglou, Alexis, Zeidler, Shimriet, Striano, Pasquale, Meyer, Pierre, Benkel-Herrenbrueck, Ira, Mero, Inger-Lise, Rummel, Jutta, Chebib, Mary, Møller, Rikke S., and Ahring, Philip K.
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- 2022
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20. Functional correlates of clinical phenotype and severity in recurrent SCN2A variants
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Berecki, Géza, Howell, Katherine B., Heighway, Jacqueline, Olivier, Nelson, Rodda, Jill, Overmars, Isabella, Vlaskamp, Danique R. M., Ware, Tyson L., Ardern-Holmes, Simone, Lesca, Gaetan, Alber, Michael, Veggiotti, Pierangelo, Scheffer, Ingrid E., Berkovic, Samuel F., Wolff, Markus, and Petrou, Steven
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- 2022
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21. CNTNAP1-encephalopathy: Six novel patients surviving the neonatal period
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Garel, Pauline, Lesca, Gaetan, Ville, Dorothée, Poulat, Anne-Lise, Chatron, Nicolas, Sanlaville, Damien, Des Portes, Vincent, Arzimanoglou, Alexis, and Lion-François, Laurence
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- 2022
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22. The EPIGENE network: A French initiative to harmonize and improve the nationwide diagnosis of monogenic epilepsies
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Arnaud, Lionel, Abi Warde, Marie-Thérèse, Barcia, Giulia, de Bellescize, Julitta, Chatron, Nicolas, Faoucher, Marie, de Saint Martin, Anne, Héron, Delphine, Jedraszak, Guillaume, Lacoste, Caroline, Lèbre, Anne-Sophie, Jenneson-Lyver, Mélanie, Labalme, Audrey, Leguern, Eric, Mignot, Cyril, Milh, Mathieu, Nabbout, Rima, Nava, Caroline, Panagiotakaki, Eleni, Piton, Amélie, Schaefer, Elise, Thevenon, Julien, Villard, Laurent, Ville, Dorothée, and Lesca, Gaetan
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- 2022
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23. Adaptive behavior and psychiatric comorbidities in KCNB1 encephalopathy
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Bar, Claire, Breuillard, Delphine, Kuchenbuch, Mathieu, Jennesson, Mélanie, Le Guyader, Gwenaël, Isnard, Hervé, Rolland, Anne, Doummar, Diane, Fluss, Joel, Afenjar, Alexandra, Berquin, Patrick, De Saint Martin, Anne, Dupont, Sophie, Goldenberg, Alice, Lederer, Damien, Lesca, Gaétan, Maurey, Hélène, Meyer, Pierre, Mignot, Cyril, Nica, Anca, Odent, Sylvie, Poisson, Alice, Scalais, Emmanuel, Sekhara, Tayeb, Vrielynck, Pascal, Barcia, Giulia, and Nabbout, Rima
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- 2022
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24. Dual Molecular Effects of Dominant RORA Mutations Cause Two Variants of Syndromic Intellectual Disability with Either Autism or Cerebellar Ataxia
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Guissart, Claire, Latypova, Xenia, Rollier, Paul, Khan, Tahir N, Stamberger, Hannah, McWalter, Kirsty, Cho, Megan T, Kjaergaard, Susanne, Weckhuysen, Sarah, Lesca, Gaetan, Besnard, Thomas, Õunap, Katrin, Schema, Lynn, Chiocchetti, Andreas G, McDonald, Marie, de Bellescize, Julitta, Vincent, Marie, Van Esch, Hilde, Sattler, Shannon, Forghani, Irman, Thiffault, Isabelle, Freitag, Christine M, Barbouth, Deborah Sara, Cadieux-Dion, Maxime, Willaert, Rebecca, Sacoto, Maria J Guillen, Safina, Nicole P, Dubourg, Christèle, Grote, Lauren, Carré, Wilfrid, Saunders, Carol, Pajusalu, Sander, Farrow, Emily, Boland, Anne, Karlowicz, Danielle Hays, Deleuze, Jean-François, Wojcik, Monica H, Pressman, Rena, Isidor, Bertrand, Vogels, Annick, Van Paesschen, Wim, Al-Gazali, Lihadh, Shamsi, Aisha Mohamed Al, Claustres, Mireille, Pujol, Aurora, Sanders, Stephan J, Rivier, François, Leboucq, Nicolas, Cogné, Benjamin, Sasorith, Souphatta, Sanlaville, Damien, Retterer, Kyle, Odent, Sylvie, Katsanis, Nicholas, Bézieau, Stéphane, Koenig, Michel, Davis, Erica E, Pasquier, Laurent, and Küry, Sébastien
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Biological Sciences ,Bioinformatics and Computational Biology ,Biomedical and Clinical Sciences ,Genetics ,Intellectual and Developmental Disabilities (IDD) ,Neurodegenerative ,Neurosciences ,Pediatric ,Rare Diseases ,Brain Disorders ,Autism ,Mental Health ,2.1 Biological and endogenous factors ,Aetiology ,Neurological ,Adolescent ,Adult ,Aged ,80 and over ,Alleles ,Animals ,Autistic Disorder ,Brain ,Cerebellar Ataxia ,Child ,Child ,Preschool ,DNA Copy Number Variations ,Disease Models ,Animal ,Female ,Genes ,Dominant ,Genetic Complementation Test ,Humans ,Intellectual Disability ,Larva ,Magnetic Resonance Imaging ,Male ,Middle Aged ,Mutation ,Missense ,Nuclear Receptor Subfamily 1 ,Group F ,Member 1 ,Purkinje Cells ,Syndrome ,Zebrafish ,RORA ,autistic features ,cerebellar ataxia ,dual molecular effects ,epilepsy ,intellectual disability ,neurodevelopmental disorder ,Medical and Health Sciences ,Genetics & Heredity ,Biological sciences ,Biomedical and clinical sciences ,Health sciences - Abstract
RORα, the RAR-related orphan nuclear receptor alpha, is essential for cerebellar development. The spontaneous mutant mouse staggerer, with an ataxic gait caused by neurodegeneration of cerebellar Purkinje cells, was discovered two decades ago to result from homozygous intragenic Rora deletions. However, RORA mutations were hitherto undocumented in humans. Through a multi-centric collaboration, we identified three copy-number variant deletions (two de novo and one dominantly inherited in three generations), one de novo disrupting duplication, and nine de novo point mutations (three truncating, one canonical splice site, and five missense mutations) involving RORA in 16 individuals from 13 families with variable neurodevelopmental delay and intellectual disability (ID)-associated autistic features, cerebellar ataxia, and epilepsy. Consistent with the human and mouse data, disruption of the D. rerio ortholog, roraa, causes significant reduction in the size of the developing cerebellum. Systematic in vivo complementation studies showed that, whereas wild-type human RORA mRNA could complement the cerebellar pathology, missense variants had two distinct pathogenic mechanisms of either haploinsufficiency or a dominant toxic effect according to their localization in the ligand-binding or DNA-binding domains, respectively. This dichotomous direction of effect is likely relevant to the phenotype in humans: individuals with loss-of-function variants leading to haploinsufficiency show ID with autistic features, while individuals with de novo dominant toxic variants present with ID, ataxia, and cerebellar atrophy. Our combined genetic and functional data highlight the complex mutational landscape at the human RORA locus and suggest that dual mutational effects likely determine phenotypic outcome.
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- 2018
25. Defining the phenotypic spectrum of SLC6A1 mutations
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Johannesen, Katrine M, Gardella, Elena, Linnankivi, Tarja, Courage, Carolina, Martin, Anne Saint, Lehesjoki, Anna‐Elina, Mignot, Cyril, Afenjar, Alexandra, Lesca, Gaetan, Abi‐Warde, Marie‐Thérèse, Chelly, Jamel, Piton, Amélie, Merritt, J Lawrence, Rodan, Lance H, Tan, Wen‐Hann, Bird, Lynne M, Nespeca, Mark, Gleeson, Joseph G, Yoo, Yongjin, Choi, Murim, Chae, Jong‐Hee, Czapansky‐Beilman, Desiree, Reichert, Sara Chadwick, Pendziwiat, Manuela, Verhoeven, Judith S, Schelhaas, Helenius J, Devinsky, Orrin, Christensen, Jakob, Specchio, Nicola, Trivisano, Marina, Weber, Yvonne G, Nava, Caroline, Keren, Boris, Doummar, Diane, Schaefer, Elise, Hopkins, Sarah, Dubbs, Holly, Shaw, Jessica E, Pisani, Laura, Myers, Candace T, Tang, Sha, Tang, Shan, Pal, Deb K, Millichap, John J, Carvill, Gemma L, Helbig, Kathrine L, Mecarelli, Oriano, Striano, Pasquale, Helbig, Ingo, Rubboli, Guido, Mefford, Heather C, and Møller, Rikke S
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Behavioral and Social Science ,Neurodegenerative ,Neurosciences ,Genetics ,Epilepsy ,Clinical Research ,Brain Disorders ,2.1 Biological and endogenous factors ,Aetiology ,Neurological ,Adolescent ,Adult ,Anticonvulsants ,Ataxia ,Child ,Child ,Preschool ,Cohort Studies ,Electroencephalography ,Epilepsies ,Myoclonic ,Epilepsies ,Partial ,Epilepsy ,Generalized ,Female ,GABA Plasma Membrane Transport Proteins ,Genetic Association Studies ,Humans ,Intellectual Disability ,Language Development Disorders ,Male ,Mutation ,Mutation ,Missense ,Neurodevelopmental Disorders ,Phenotype ,Treatment Outcome ,Valproic Acid ,Young Adult ,epilepsy ,epilepsy genetics ,MAE ,SLC6A1 ,MAE ,SLC6A1 ,Clinical Sciences ,Neurology & Neurosurgery - Abstract
ObjectivePathogenic SLC6A1 variants were recently described in patients with myoclonic atonic epilepsy (MAE) and intellectual disability (ID). We set out to define the phenotypic spectrum in a larger cohort of SCL6A1-mutated patients.MethodsWe collected 24 SLC6A1 probands and 6 affected family members. Four previously published cases were included for further electroclinical description. In total, we reviewed the electroclinical data of 34 subjects.ResultsCognitive development was impaired in 33/34 (97%) subjects; 28/34 had mild to moderate ID, with language impairment being the most common feature. Epilepsy was diagnosed in 31/34 cases with mean onset at 3.7 years. Cognitive assessment before epilepsy onset was available in 24/31 subjects and was normal in 25% (6/24), and consistent with mild ID in 46% (11/24) or moderate ID in 17% (4/24). Two patients had speech delay only, and 1 had severe ID. After epilepsy onset, cognition deteriorated in 46% (11/24) of cases. The most common seizure types were absence, myoclonic, and atonic seizures. Sixteen cases fulfilled the diagnostic criteria for MAE. Seven further patients had different forms of generalized epilepsy and 2 had focal epilepsy. Twenty of 31 patients became seizure-free, with valproic acid being the most effective drug. There was no clear-cut correlation between seizure control and cognitive outcome. Electroencephalography (EEG) findings were available in 27/31 patients showing irregular bursts of diffuse 2.5-3.5 Hz spikes/polyspikes-and-slow waves in 25/31. Two patients developed an EEG pattern resembling electrical status epilepticus during sleep. Ataxia was observed in 7/34 cases. We describe 7 truncating and 18 missense variants, including 4 recurrent variants (Gly232Val, Ala288Val, Val342Met, and Gly362Arg).SignificanceMost patients carrying pathogenic SLC6A1 variants have an MAE phenotype with language delay and mild/moderate ID before epilepsy onset. However, ID alone or associated with focal epilepsy can also be observed.
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- 2018
26. Idiopathic generalized epilepsy in a family with SCN4A‐related myotonia
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Talarico, Mariagrazia, primary, Fortunato, Francesco, additional, Labalme, Audrey, additional, Januel, Louis, additional, Chatron, Nicolas, additional, Sanlaville, Damien, additional, Sammarra, Ilaria, additional, Gagliardi, Monica, additional, Procopio, Radha, additional, Valentino, Paola, additional, Annesi, Grazia, additional, Lesca, Gaetan, additional, and Gambardella, Antonio, additional
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- 2024
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27. Description of a novel patient with the TRPM3 recurrent p.Val837Met variant
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Gauthier, Lucas W, Chatron, Nicolas, Cabet, Sara, Labalme, Audrey, Carneiro, Maryline, Poirot, Isabelle, Delvert, Céline, Gleizal, Arnaud, Lesca, Gaetan, and Putoux, Audrey
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- 2021
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28. Clinical and molecular characterization of Unverricht–Lundborg disease among Egyptian patients
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Hosny, Hassan, El Tamawy, Mohamed, Gouider, Riyad, Lesca, Gaetan, Abdel Naseer, Maged, Kishk, Nirmeen, Abdel-Hamid, Mohamed S., and Ashmawi, Ayman
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- 2021
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29. CACNA1A-associated epilepsy: Electroclinical findings and treatment response on seizures in 18 patients
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Le Roux, Marie, Barth, Magalie, Gueden, Sophie, Desbordes de Cepoy, Patrick, Aeby, Alec, Vilain, Catheline, Hirsch, Edouard, de Saint Martin, Anne, Portes, Vincent des, Lesca, Gaëtan, Riquet, Audrey, Chaton, Laurence, Villeneuve, Nathalie, Villard, Laurent, Cances, Claude, Valton, Luc, Renaldo, Florence, Vermersch, Anne-Isabelle, Altuzarra, Cecilia, Nguyen-Morel, Marie-Ange, Van Gils, Julien, Angelini, Chloé, Biraben, Arnaud, Arnaud, Lionel, Riant, Florence, and Van Bogaert, Patrick
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- 2021
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30. Clinical delineation of SETBP1 haploinsufficiency disorder
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Jansen, Nadieh A., Braden, Ruth O., Srivastava, Siddharth, Otness, Erin F., Lesca, Gaetan, Rossi, Massimiliano, Nizon, Mathilde, Bernier, Raphael A., Quelin, Chloé, van Haeringen, Arie, Kleefstra, Tjitske, Wong, Maggie M. K., Whalen, Sandra, Fisher, Simon E., Morgan, Angela T., and van Bon, Bregje W.
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- 2021
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31. ARHGEF9 disease
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Alber, Michael, Kalscheuer, Vera M, Marco, Elysa, Sherr, Elliott, Lesca, Gaetan, Till, Marianne, Gradek, Gyri, Wiesener, Antje, Korenke, Christoph, Mercier, Sandra, Becker, Felicitas, Yamamoto, Toshiyuki, Scherer, Stephen W, Marshall, Christian R, Walker, Susan, Dutta, Usha R, Dalal, Ashwin B, Suckow, Vanessa, Jamali, Payman, Kahrizi, Kimia, Najmabadi, Hossein, and Minassian, Berge A
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Epilepsy ,Neurodegenerative ,Intellectual and Developmental Disabilities (IDD) ,Brain Disorders ,Neurosciences ,Genetics ,Aetiology ,2.1 Biological and endogenous factors ,Neurological - Abstract
ObjectiveWe aimed to generate a review and description of the phenotypic and genotypic spectra of ARHGEF9 mutations.MethodsPatients with mutations or chromosomal disruptions affecting ARHGEF9 were identified through our clinics and review of the literature. Detailed medical history and examination findings were obtained via a standardized questionnaire, or if this was not possible by reviewing the published phenotypic features.ResultsA total of 18 patients (including 5 females) were identified. Six had de novo, 5 had maternally inherited mutations, and 7 had chromosomal disruptions. All females had strongly skewed X-inactivation in favor of the abnormal X-chromosome. Symptoms presented in early childhood with delayed motor development alone or in combination with seizures. Intellectual disability was severe in most and moderate in patients with milder mutations. Males with severe intellectual disability had severe, often intractable, epilepsy and exhibited a particular facial dysmorphism. Patients with mutations in exon 9 affecting the protein's PH domain did not develop epilepsy.ConclusionsARHGEF9 encodes a crucial neuronal synaptic protein; loss of function of which results in severe intellectual disability, epilepsy, and a particular facial dysmorphism. Loss of only the protein's PH domain function is associated with the absence of epilepsy.
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- 2017
32. ARHGEF9 disease: Phenotype clarification and genotype-phenotype correlation.
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Alber, Michael, Kalscheuer, Vera M, Marco, Elysa, Sherr, Elliott, Lesca, Gaetan, Till, Marianne, Gradek, Gyri, Wiesener, Antje, Korenke, Christoph, Mercier, Sandra, Becker, Felicitas, Yamamoto, Toshiyuki, Scherer, Stephen W, Marshall, Christian R, Walker, Susan, Dutta, Usha R, Dalal, Ashwin B, Suckow, Vanessa, Jamali, Payman, Kahrizi, Kimia, Najmabadi, Hossein, and Minassian, Berge A
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Genetics ,Neurosciences - Abstract
ObjectiveWe aimed to generate a review and description of the phenotypic and genotypic spectra of ARHGEF9 mutations.MethodsPatients with mutations or chromosomal disruptions affecting ARHGEF9 were identified through our clinics and review of the literature. Detailed medical history and examination findings were obtained via a standardized questionnaire, or if this was not possible by reviewing the published phenotypic features.ResultsA total of 18 patients (including 5 females) were identified. Six had de novo, 5 had maternally inherited mutations, and 7 had chromosomal disruptions. All females had strongly skewed X-inactivation in favor of the abnormal X-chromosome. Symptoms presented in early childhood with delayed motor development alone or in combination with seizures. Intellectual disability was severe in most and moderate in patients with milder mutations. Males with severe intellectual disability had severe, often intractable, epilepsy and exhibited a particular facial dysmorphism. Patients with mutations in exon 9 affecting the protein's PH domain did not develop epilepsy.ConclusionsARHGEF9 encodes a crucial neuronal synaptic protein; loss of function of which results in severe intellectual disability, epilepsy, and a particular facial dysmorphism. Loss of only the protein's PH domain function is associated with the absence of epilepsy.
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- 2017
33. Disruption of RFX family transcription factors causes autism, attention-deficit/hyperactivity disorder, intellectual disability, and dysregulated behavior
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Harris, Holly K., Nakayama, Tojo, Lai, Jenny, Zhao, Boxun, Argyrou, Nikoleta, Gubbels, Cynthia S., Soucy, Aubrie, Genetti, Casie A., Suslovitch, Victoria, Rodan, Lance H., Tiller, George E., Lesca, Gaetan, Gripp, Karen W., Asadollahi, Reza, Hamosh, Ada, Applegate, Carolyn D., Turnpenny, Peter D., Simon, Marleen E. H., Volker-Touw, Catharina M. L., Gassen, Koen L. I. van, Binsbergen, Ellen van, Pfundt, Rolph, Gardeitchik, Thatjana, Vries, Bert B. A. de, Immken, LaDonna L., Buchanan, Catherine, Willing, Marcia, Toler, Tomi L., Fassi, Emily, Baker, Laura, Vansenne, Fleur, Wang, Xiadong, Ambrus, Jr., Julian L., Fannemel, Madeleine, Posey, Jennifer E., Agolini, Emanuele, Novelli, Antonio, Rauch, Anita, Boonsawat, Paranchai, Fagerberg, Christina R., Larsen, Martin J., Kibaek, Maria, Labalme, Audrey, Poisson, Alice, Payne, Katelyn K., Walsh, Laurence E., Aldinger, Kimberly A., Balciuniene, Jorune, Skraban, Cara, Gray, Christopher, Murrell, Jill, Bupp, Caleb P., Pascolini, Giulia, Grammatico, Paola, Broly, Martin, Küry, Sébastien, Nizon, Mathilde, Rasool, Iqra Ghulam, Zahoor, Muhammad Yasir, Kraus, Cornelia, Reis, André, Iqbal, Muhammad, Uguen, Kevin, Audebert-Bellanger, Severine, Ferec, Claude, Redon, Sylvia, Baker, Janice, Wu, Yunhong, Zampino, Guiseppe, Syrbe, Steffan, Brosse, Ines, Jamra, Rami Abou, Dobyns, William B., Cohen, Lilian L., Blomhoff, Anne, Mignot, Cyril, Keren, Boris, Courtin, Thomas, Agrawal, Pankaj B., Beggs, Alan H., and Yu, Timothy W.
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- 2021
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34. Follow-up of two adult brothers with homozygous CEP57 pathogenic variants expands the phenotype of Mosaic Variegated Aneuploidy Syndrome
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Dery, Tania, Chatron, Nicolas, Alqahtani, Amerh, Pugeat, Michel, Till, Marianne, Edery, Patrick, Sanlaville, Damien, Schluth-Bolard, Caroline, Nicolino, Marc, Lesca, Gaetan, and Putoux, Audrey
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- 2020
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35. Clinical and molecular description of 19 patients with GATAD2B-Associated Neurodevelopmental Disorder (GAND)
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Vera, Gabriella, Sorlin, Arthur, Delplancq, Geoffroy, Lecoquierre, François, Brasseur-Daudruy, Marie, Petit, Florence, Smol, Thomas, Ziegler, Alban, Bonneau, Dominique, Colin, Estelle, Mercier, Sandra, Cogné, Benjamin, Bézieau, Stéphane, Edery, Patrick, Lesca, Gaetan, Chatron, Nicolas, Sabatier, Isabelle, Duban-Bedu, Bénédicte, Colson, Cindy, Piton, Amélie, Durand, Benjamin, Capri, Yline, Perrin, Laurence, Wiesener, Antje, Zweier, Christiane, Maroofian, Reza, Carroll, Christopher J., Galehdari, Hamid, Mazaheri, Neda, Callewaert, Bert, Giulianno, Fabienne, Zaafrane-Khachnaoui, Khaoula, Buchert-Lo, Rebecca, Haack, Tobias, Magg, Janine, Rieß, Angelika, Blandfort, Maria, Waldmüller, Stephan, Horber, Veronka, Leonardi, Emanuela, Polli, Roberta, Turolla, Licia, Murgia, Alessandra, Frebourg, Thierry, Lebre, Anne Sophie, Nicolas, Gaël, Saugier-Veber, Pascale, and Guerrot, Anne-Marie
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- 2020
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36. Multisystem disorders, severe developmental delay and seizures in two affected siblings, expanding the phenotype of PIGC deficiency
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Pons, Linda, Sabatier, Isabelle, Alix, Eudeline, Faoucher, Marie, Labalme, Audrey, Sanlaville, Damien, and Lesca, Gaetan
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- 2020
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37. New insights into the clinical and molecular spectrum of the novel CYFIP2-related neurodevelopmental disorder and impairment of the WRC-mediated actin dynamics
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Begemann, Anaïs, Sticht, Heinrich, Begtrup, Amber, Vitobello, Antonio, Faivre, Laurence, Banka, Siddharth, Alhaddad, Bader, Asadollahi, Reza, Becker, Jessica, Bierhals, Tatjana, Brown, Kathleen E., Bruel, Ange-Line, Brunet, Theresa, Carneiro, Maryline, Cremer, Kirsten, Day, Robert, Denommé-Pichon, Anne-Sophie, Dyment, Dave A., Engels, Hartmut, Fisher, Rachel, Goh, Elaine S., Hajianpour, M. J., Haertel, Lucia Ribeiro Machado, Hauer, Nadine, Hempel, Maja, Herget, Theresia, Johannsen, Jessika, Kraus, Cornelia, Le Guyader, Gwenaël, Lesca, Gaetan, Mau-Them, Frédéric Tran, McDermott, John Henry, McWalter, Kirsty, Meyer, Pierre, Õunap, Katrin, Popp, Bernt, Reimand, Tiia, Riedhammer, Korbinian M., Russo, Martina, Sadleir, Lynette G., Saenz, Margarita, Schiff, Manuel, Schuler, Elisabeth, Syrbe, Steffen, Van der Ven, Amelie Theresa, Verloes, Alain, Willems, Marjolaine, Zweier, Christiane, Steindl, Katharina, Zweier, Markus, and Rauch, Anita
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- 2021
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38. NEXMIF encephalopathy: an X-linked disorder with male and female phenotypic patterns
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Stamberger, Hannah, Hammer, Trine B., Gardella, Elena, Vlaskamp, Danique R. M., Bertelsen, Birgitte, Mandelstam, Simone, de Lange, Iris, Zhang, Jing, Myers, Candace T., Fenger, Christina, Afawi, Zaid, Almanza Fuerte, Edith P., Andrade, Danielle M., Balcik, Yunus, Ben Zeev, Bruria, Bennett, Mark F., Berkovic, Samuel F., Isidor, Bertrand, Bouman, Arjan, Brilstra, Eva, Busk, Øyvind L., Cairns, Anita, Caumes, Roseline, Chatron, Nicolas, Dale, Russell C., de Geus, Christa, Edery, Patrick, Gill, Deepak, Granild-Jensen, Jacob Bie, Gunderson, Lauren, Gunning, Boudewijn, Heimer, Gali, Helle, Johan R., Hildebrand, Michael S., Hollingsworth, Georgie, Kharytonov, Volodymyr, Klee, Eric W., Koeleman, Bobby P. C., Koolen, David A., Korff, Christian, Küry, Sébastien, Lesca, Gaetan, Lev, Dorit, Leventer, Richard J., Mackay, Mark T., Macke, Erica L., McEntagart, Meriel, Mohammad, Shekeeb S., Monin, Pauline, Montomoli, Martino, Morava, Eva, Moutton, Sebastien, Muir, Alison M., Parrini, Elena, Procopis, Peter, Ranza, Emmanuelle, Reed, Laura, Reif, Philipp S., Rosenow, Felix, Rossi, Massimiliano, Sadleir, Lynette G., Sadoway, Tara, Schelhaas, Helenius J., Schneider, Amy L., Shah, Krati, Shalev, Ruth, Sisodiya, Sanjay M., Smol, Thomas, Stumpel, Connie T. R. M., Stuurman, Kyra, Symonds, Joseph D., Mau-Them, Frederic Tran, Verbeek, Nienke, Verhoeven, Judith S., Wallace, Geoffrey, Yosovich, Keren, Zarate, Yuri A., Zerem, Ayelet, Zuberi, Sameer M., Guerrini, Renzo, Mefford, Heather C., Patel, Chirag, Zhang, Yue-Hua, Møller, Rikke S., and Scheffer, Ingrid E.
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- 2021
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39. Accessibility, availability and common practices regarding genetic testing for epilepsy across Europe: A survey of the European Reference Network EpiCARE.
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Papadopoulou, Maria T., Muccioli, Lorenzo, Bisulli, Francesca, Klotz, Kerstin Alexandra, Fons, Carmen, Trivisano, Marina, Kabulashvili, Teia, Specchio, Nicola, Lesca, Gaetan, and Arzimanoglou, Alexis
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GENETIC testing ,WHOLE genome sequencing ,EPILEPSY ,DELAYED diagnosis - Abstract
Objective: The increasingly rapid pace of advancement in genetic testing may lead to inequalities in technical and human resources with a negative impact on optimal epilepsy clinical practice. In this view, the European Reference Network (ERN) for Rare and Complex Epilepsies EpiCARE conducted a survey addressing several aspects of accessibility, availability, costs, and standard practices on genetic testing across ERN EpiCARE centers. Methods: An online Google form was sent to 70 representatives of ERN EpiCARE centers. Descriptive statistics and qualitative analysis were used for data presentation. Results: We received 45 responses (1/center) representing 23 European countries with a better representation of Western Europe. Forty‐five percent of the centers did not have access to all available types of genetic testing, mainly reflecting the limited availability of whole‐genome sequencing (WGS). Thirty‐five percent of centers report cost coverage only for some of the available tests, while costs per test varied significantly (interquartile range IQR ranging from 150 to 1173 euros per test across centers). Urgent genetic testing is available in 71.7% of countries (time‐to‐urgent result: 2 day to 2 months). The average time‐to‐result of specific tests in case of non‐urgent prescription has a significant variance across centers, with the biggest range observed for whole‐exome sequencing (6–128 weeks, IQR: 27 weeks). The percentage of agreement among the experts regarding the choice of genetic test at first intention in specific clinical situations was in all cases less than 50 percent (34.9% to 47% according to the proposed scenarios). Significance: Costs, time to deliver the results to the clinician, and type of first‐line genetic testing vary widely across Europe, even in countries where ERN EpiCARE centers are present. Increased availability of genetic tests and guidance for optimal test choices in epilepsy remains essential to avoid diagnostic delays and excess health costs. Plain Language Summary: The survey of the ERN EpiCARE highlights disparities in genetic testing for epilepsy across 45 ERN EpiCARE centers in 23 European countries. The findings reveal variable access to certain genetic tests, with lowest access to WGS. Costs and time‐to‐results vary widely. Urgent genetic testing is available in 71.7% of countries. Agreement among experts on first‐line genetic tests for specific patient scenarios is below 50%. The study emphasizes the need for improved test availability and guidance to avoid diagnostic delays and unnecessary costs. EpiCARE has the mission to contribute in homogenizing best practices across Europe. [ABSTRACT FROM AUTHOR]
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- 2024
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40. Specifications of the ACMG/AMP Variant Curation Guidelines for Hereditary Hemorrhagic Telangiectasia Genes--ENG and ACVRL1.
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DeMille, Desiree, McDonald, Jamie, Bernabeu, Carmelo, Racher, Hilary, Olivieri, Carla, Cantarini, Claudia, Sbalchiero, Anna, Thompson, Bryony A., Jovine, Luca, Shovlin, Claire L., Dupuis-Girod, Sophie, Lesca, Gaetan, Tusseau, Maud, Ganguly, Arupa, Kasthuri, Raj S., Jessen, Jaime, Massink, Maarten P. G., Shoji Ichikawa, and Bayrak-Toydemir, Pinar
- Abstract
The 2015 ACMG/AMP standards and guidelines for interpretation of sequence variants are widely used by laboratories, including for variant curation of the hereditary hemorrhagic telangiectasia (HHT) genes. However, the need for gene- and disease-specific modifications and specifications of these general guidelines to optimize and standardize variant classification was recognized at the time of publication. With this goal, the ClinGen HHT variant curation expert panel was formed. Here, we describe our recommended HHT-specific variant classification criteria and the outcomes from pilot testing of 30 variants of the ENG and ACVRL1 genes. Eight of the original ACMG/AMP rules were determined to not be applicable for ENG- or ACVRL1-related HHT or were previously recommended by ClinGen for removal, two rules were unmodified, and the remaining 18 rules were modified according to HHT specifications or previous ClinGen general recommendations. This study demonstrates the importance of HHT-specific criteria in the optimization and standardization of HHT variant classification and conflicting classification resolution. [ABSTRACT FROM AUTHOR]
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- 2024
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41. Clinical and molecular characterization of patients with YWHAG‐related epilepsy.
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Cetica, Valentina, Pisano, Tiziana, Lesca, Gaetan, Marafi, Dana, Licchetta, Laura, Riccardi, Florence, Mei, Davide, Chung, Hon‐yin B., Bayat, Allan, Balasubramanian, Meena, Lowenstein, Daniel H., Endzinienė, Milda, Alotaibi, Maha, Villeneuve, Nathalie, Jacobs, Julia, Isidor, Bertrand, Solazzi, Roberta, den Hollander, Nicolette S., Marjanovic, Dragan, and Rougeot‐Jung, Christelle
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EPILEPSY ,PEOPLE with epilepsy ,DEVELOPMENTAL delay ,MAGNETIC resonance imaging ,MYOCLONUS ,MISSENSE mutation - Abstract
Objective: YWHAG variant alleles have been associated with a rare disease trait whose clinical synopsis includes an early onset epileptic encephalopathy with predominantly myoclonic seizures, developmental delay/intellectual disability, and facial dysmorphisms. Through description of a large cohort, which doubles the number of reported patients, we further delineate the spectrum of YWHAG‐related epilepsy. Methods: We included in this study 24 patients, 21 new and three previously described, with pathogenic/likely pathogenic variants in YWHAG. We extended the analysis of clinical, electroencephalographic, brain magnetic resonance imaging, and molecular genetic information to 24 previously published patients. Results: The phenotypic spectrum of YWHAG‐related disorders ranges from mild developmental delay to developmental and epileptic encephalopathy (DEE). Epilepsy onset is in the first 2 years of life. Seizure freedom can be achieved in half of the patients (13/24, 54%). Intellectual disability (23/24, 96%), behavioral disorders (18/24, 75%), neurological signs (13/24, 54%), and dysmorphisms (6/24, 25%) are common. A genotype–phenotype correlation emerged, as DEE is more represented in patients with missense variants located in the ligand‐binding domain than in those with truncating or missense variants in other domains (90% vs. 19%, p <.001). Significance: This study suggests that pathogenic YWHAG variants cause a wide range of clinical presentations with variable severity, ranging from mild developmental delay to DEE. In this allelic series, a genotype–phenotype correlation begins to emerge, potentially providing prognostic information for clinical management and genetic counseling. [ABSTRACT FROM AUTHOR]
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- 2024
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42. Globus Pallidus Lesion With Iron Deposition and Dopaminergic Denervation in a Patient With a Pathogenic SLC6A1 Variant.
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Leclert, Victoire, Laurencin, Chloe, Ameli, Roxana, Hermier, Marc, Flaus, Anthime, Prange, Stephane, Lesca, Gaetan, and Thobois, Stephane
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- 2024
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43. Exome sequencing in 57 patients with self-limited focal epilepsies of childhood with typical or atypical presentations suggests novel candidate genes
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Rudolf, Gabrielle, de Bellescize, Julitta, de Saint Martin, Anne, Arzimanoglou, Alexis, Valenti Hirsch, Maria Paola, Labalme, Audrey, Boulay, Clotilde, Simonet, Thomas, Boland, Anne, Deleuze, Jean François, Nitschké, Patrick, Ollivier, Emmanuelle, Sanlaville, Damien, Hirsch, Edouard, Chelly, Jamel, and Lesca, Gaetan
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- 2020
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44. Novel truncating and missense variants extending the spectrum of EMC1-related phenotypes, causing autism spectrum disorder, severe global development delay and visual impairment
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Cabet, Sara, Lesca, Gaetan, Labalme, Audrey, Des Portes, Vincent, Guibaud, Laurent, Sanlaville, Damien, and Pons, Linda
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- 2020
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45. Expanding the clinical and EEG spectrum of CNKSR2-related encephalopathy with status epilepticus during slow sleep (ESES)
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Bonardi, Claudia M., Mignot, Cyril, Serratosa, Jose M., Giraldez, Beatriz G., Moretti, Raffaella, Rudolf, Gabrielle, Reale, Chiara, Gellert, Pia M., Johannesen, Katrine M., Lesca, Gaetan, Tassinari, Carlo A., Gardella, Elena, Møller, Rikke S., and Rubboli, Guido
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- 2020
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46. Biallelic NUDT2 variants defective in mRNA decapping cause a neurodevelopmental disease
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Husain, Ralf A, primary, Jiao, Xinfu, additional, Hennings, J Christopher, additional, Giesecke, Jan, additional, Palsule, Geeta, additional, Beck-Wödl, Stefanie, additional, Osmanović, Dina, additional, Bjørgo, Kathrine, additional, Mir, Asif, additional, Ilyas, Muhammad, additional, Abbasi, Saad M, additional, Efthymiou, Stephanie, additional, Dominik, Natalia, additional, Maroofian, Reza, additional, Houlden, Henry, additional, Rankin, Julia, additional, Pagnamenta, Alistair T, additional, Nashabat, Marwan, additional, Altwaijri, Waleed, additional, Alfadhel, Majid, additional, Umair, Muhammad, additional, Khouj, Ebtissal, additional, Reardon, William, additional, El-Hattab, Ayman W, additional, Mekki, Mohammed, additional, Houge, Gunnar, additional, Beetz, Christian, additional, Bauer, Peter, additional, Putoux, Audrey, additional, Lesca, Gaetan, additional, Sanlaville, Damien, additional, Alkuraya, Fowzan S, additional, Taylor, Robert W, additional, Mentzel, Hans-Joachim, additional, Hübner, Christian A, additional, Huppke, Peter, additional, Hart, Ronald P, additional, Haack, Tobias B, additional, Kiledjian, Megerditch, additional, and Rubio, Ignacio, additional
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- 2023
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47. Molecular and Phenotypic Characterization of the RORB-Related Disorder
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Gokce-Samar, Zeynep, primary, Vetro, Annalisa, additional, De Bellescize, Julitta, additional, Pisano, Tiziana, additional, Monteiro, Laloe, additional, Penaud, Noémie, additional, Korff, Christian M., additional, Fluss, Joel, additional, Marini, Carla, additional, Cesaroni, Elisabetta, additional, Alvarez, Blanca Mercedes, additional, Sanlaville, Damien, additional, Chatron, Nicolas, additional, Arzimanoglou, Alexis A., additional, Labalme, Audrey, additional, Cuddapah, Vishnu A., additional, Ruggiero, Sarah M., additional, Lecoquierre, Francois, additional, Nicolas, Gael, additional, Marie, Guerrot Anne, additional, Lebas, Axel, additional, Testard, Herve O., additional, Helbig, Katherine L., additional, Ruiz, Anna, additional, Ngoh, Adeline, additional, Kurian, Manju A., additional, Reid, Kimberley, additional, Spaull, Robert, additional, Joset, Pascal, additional, Ramantani, Georgia, additional, Steindl, Katharina, additional, Krenn, Martin, additional, Gerstl, Lucia, additional, Vieker, Silvia, additional, Craiu, Dana, additional, Pendziwiat, Manuela, additional, Haldeman-Englert, Chad, additional, Kanivets, Ilya, additional, Romanova, Irina, additional, Rajan, Deepa S., additional, Rosenfeld, Jill A., additional, Au, Margaret, additional, Grand, Katheryn, additional, Graham, John M., additional, Isapof, Arnaud, additional, Villeneuve, Nathalie, additional, Smol, Thomas, additional, Caumes, Roseline, additional, Zacher, Pia, additional, Neuser, Sonja, additional, Tinschert, Sigrid, additional, Platzer, Konrad, additional, Bartolomaeus, Tobias, additional, Mohnke, Ines, additional, Radtke, Maximilian, additional, Jamra, Rami Abou, additional, Helbig, Ingo, additional, Jansen, Floortje E., additional, Koop, Klaas, additional, Rudolf, Gabrielle, additional, Küry, Sebastien, additional, Courchet, Julien, additional, Guerrini, Renzo, additional, and Lesca, Gaetan, additional
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- 2023
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48. Developmental epileptic encephalopathy in DLG4‐related synaptopathy
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Kassabian, Benedetta, primary, Levy, Amanda M., additional, Gardella, Elena, additional, Aledo‐Serrano, Angel, additional, Ananth, Amitha L., additional, Brea‐Fernández, Alejandro J., additional, Caumes, Roseline, additional, Chatron, Nicolas, additional, Dainelli, Alice, additional, De Wachter, Matthias, additional, Denommé‐Pichon, Anne‐Sophie, additional, Dye, Thomas J., additional, Fazzi, Elisa, additional, Felt, Roxanne, additional, Fernández‐Jaén, Alberto, additional, Fernández‐Prieto, Montserrat, additional, Gantz, Emily, additional, Gasperowicz, Piotr, additional, Gil‐Nagel, Antonio, additional, Gómez‐Andrés, David, additional, Greiner, Hansel M., additional, Guerrini, Renzo, additional, Haanpää, Maria K., additional, Helin, Minttu, additional, Hoyer, Juliane, additional, Hurst, Anna C. E., additional, Kallish, Staci, additional, Karkare, Shefali N., additional, Khan, Amjad, additional, Kleinendorst, Lotte, additional, Koch, Johannes, additional, Kothare, Sanjeev V., additional, Koudijs, Suzanna V., additional, Lagae, Lieven, additional, Lakeman, Phillis, additional, Leppig, Kathleen A., additional, Lesca, Gaetan, additional, Lopergolo, Diego, additional, Lusk, Laina, additional, Mackenzie, Alex, additional, Mei, Davide, additional, Møller, Rikke S., additional, Pereira, Elaine M., additional, Platzer, Konrad, additional, Quelin, Chloe, additional, Revah‐Politi, Anya, additional, Rheims, Sylvain, additional, Rodríguez‐Palmero, Agustí, additional, Rossi, Andrea, additional, Santorelli, Filippo, additional, Seinfeld, Syndi, additional, Sell, Erick, additional, Stephenson, Donna, additional, Szczaluba, Krzysztof, additional, Trinka, Eugen, additional, Umair, Muhammad, additional, Van Esch, Hilde, additional, van Haelst, Mieke M., additional, Veenma, Danielle C. M., additional, Weber, Sacha, additional, Weckhuysen, Sarah, additional, Zacher, Pia, additional, Tümer, Zeynep, additional, and Rubboli, Guido, additional
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- 2023
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49. Delineation of the adult phenotype of Coffin–Siris syndrome in 35 individuals
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Schmetz, Ariane, primary, Lüdecke, Hermann-Josef, additional, Surowy, Harald, additional, Sivalingam, Sugirtahn, additional, Bruel, Ange-Line, additional, Caumes, Roseline, additional, Charles, Perrine, additional, Chatron, Nicolas, additional, Chrzanowska, Krystyna, additional, Codina-Solà, Marta, additional, Colson, Cindy, additional, Cuscó, Ivon, additional, Denommé-Pichon, Anne-Sophie, additional, Edery, Patrick, additional, Faivre, Laurence, additional, Green, Andrew, additional, Heide, Solveig, additional, Hsieh, Tzung-Chien, additional, Hustinx, Alexander, additional, Kleinendorst, Lotte, additional, Knopp, Cordula, additional, Kraft, Florian, additional, Krawitz, Peter M., additional, Lasa-Aranzasti, Amaia, additional, Lesca, Gaetan, additional, López-González, Vanesa, additional, Maraval, Julien, additional, Mignot, Cyril, additional, Neuhann, Teresa, additional, Netzer, Christian, additional, Oehl-Jaschkowitz, Barbara, additional, Petit, Florence, additional, Philippe, Christophe, additional, Posmyk, Renata, additional, Putoux, Audrey, additional, Reis, André, additional, Sánchez-Soler, María José, additional, Suh, Julia, additional, Tkemaladze, Tinatin, additional, Tran Mau Them, Frédéric, additional, Travessa, André, additional, Trujillano, Laura, additional, Valenzuela, Irene, additional, van Haelst, Mieke M., additional, Vasileiou, Georgia, additional, Vincent-Delorme, Catherine, additional, Walther, Mona, additional, Verde, Pablo, additional, Bramswig, Nuria C., additional, and Wieczorek, Dagmar, additional
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- 2023
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50. GRM7-related disorder: Five additional patients from three independent families and review of the literature
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Januel, Louis, primary, Chatron, Nicolas, additional, Rivier Ringenbach, Clotilde, additional, Cabet, Sara, additional, Labalme, Audrey, additional, Sahin, Yavuz, additional, Darvish, Hossein, additional, Kruer, Michael, additional, Bakhtiari, Somayeh, additional, Sanlaville, Damien, additional, de Sainte Agathe, Jean Madeleine, additional, and Lesca, Gaetan, additional
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- 2023
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