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3. A CCG expansion in ABCD3 causes oculopharyngodistal myopathy in individuals of European ancestry

Author

Cortese, Andrea, Beecroft, Sarah J., Facchini, Stefano, Curro, Riccardo, Cabrera-Serrano, Macarena, Stevanovski, Igor, Chintalaphani, Sanjog R., Gamaarachchi, Hasindu, Weisburd, Ben, Folland, Chiara, Monahan, Gavin, Scriba, Carolin K., Dofash, Lein, Johari, Mridul, Grosz, Bianca R., Ellis, Melina, Fearnley, Liam G., Tankard, Rick, Read, Justin, Merve, Ashirwad, Dominik, Natalia, Vegezzi, Elisa, Schnekenberg, Ricardo P., Fernandez-Eulate, Gorka, Masingue, Marion, Giovannini, Diane, Delatycki, Martin B., Storey, Elsdon, Gardner, Mac, Amor, David J., Nicholson, Garth, Vucic, Steve, Henderson, Robert D., Robertson, Thomas, Dyke, Jason, Fabian, Vicki, Mastaglia, Frank, Davis, Mark R., Kennerson, Marina, Quinlivan, Ros, Hammans, Simon, Tucci, Arianna, Bahlo, Melanie, McLean, Catriona A., Laing, Nigel G., Stojkovic, Tanya, Houlden, Henry, Hanna, Michael G., Deveson, Ira W., Lockhart, Paul J., Lamont, Phillipa J., Fahey, Michael C., Bugiardini, Enrico, and Ravenscroft, Gianina

Published
2024
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4. Author Correction: A CCG expansion in ABCD3 causes oculopharyngodistal myopathy in individuals of European ancestry

Author

Cortese, Andrea, Beecroft, Sarah J., Facchini, Stefano, Curro, Riccardo, Cabrera-Serrano, Macarena, Stevanovski, Igor, Chintalaphani, Sanjog R., Gamaarachchi, Hasindu, Weisburd, Ben, Folland, Chiara, Monahan, Gavin, Scriba, Carolin K., Dofash, Lein, Johari, Mridul, Grosz, Bianca R., Ellis, Melina, Fearnley, Liam G., Tankard, Rick, Read, Justin, Merve, Ashirwad, Dominik, Natalia, Vegezzi, Elisa, Schnekenberg, Ricardo P., Fernandez-Eulate, Gorka, Masingue, Marion, Giovannini, Diane, Delatycki, Martin B., Storey, Elsdon, Gardner, Mac, Amor, David J., Nicholson, Garth, Vucic, Steve, Henderson, Robert D., Robertson, Thomas, Dyke, Jason, Fabian, Vicki, Mastaglia, Frank, Davis, Mark R., Kennerson, Marina, Quinlivan, Ros, Hammans, Simon, Tucci, Arianna, Bahlo, Melanie, McLean, Catriona A., Laing, Nigel G., Stojkovic, Tanya, Houlden, Henry, Hanna, Michael G., Deveson, Ira W., Lockhart, Paul J., Lamont, Phillipa J., Fahey, Michael C., Bugiardini, Enrico, and Ravenscroft, Gianina

Published
2024
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5. Identification and characterisation of pathogenic and non-pathogenic FGF14 repeat expansions

Author

Mohren, Lars, Erdlenbruch, Friedrich, Leitão, Elsa, Kilpert, Fabian, Hönes, G. Sebastian, Kaya, Sabine, Schröder, Christopher, Thieme, Andreas, Sturm, Marc, Park, Joohyun, Schlüter, Agatha, Ruiz, Montserrat, Morales de la Prida, Moisés, Casasnovas, Carlos, Becker, Kerstin, Roggenbuck, Ulla, Pechlivanis, Sonali, Kaiser, Frank J., Synofzik, Matthis, Wirth, Thomas, Anheim, Mathieu, Haack, Tobias B., Lockhart, Paul J., Jöckel, Karl-Heinz, Pujol, Aurora, Klebe, Stephan, Timmann, Dagmar, and Depienne, Christel

Published
2024
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6. De novo variants in the RNU4-2 snRNA cause a frequent neurodevelopmental syndrome

Author

Chen, Yuyang, Dawes, Ruebena, Kim, Hyung Chul, Ljungdahl, Alicia, Stenton, Sarah L., Walker, Susan, Lord, Jenny, Lemire, Gabrielle, Martin-Geary, Alexandra C., Ganesh, Vijay S., Ma, Jialan, Ellingford, Jamie M., Delage, Erwan, D’Souza, Elston N., Dong, Shan, Adams, David R., Allan, Kirsten, Bakshi, Madhura, Baldwin, Erin E., Berger, Seth I., Bernstein, Jonathan A., Bhatnagar, Ishita, Blair, Ed, Brown, Natasha J., Burrage, Lindsay C., Chapman, Kimberly, Coman, David J., Compton, Alison G., Cunningham, Chloe A., D’Souza, Precilla, Danecek, Petr, Délot, Emmanuèle C., Dias, Kerith-Rae, Elias, Ellen R., Elmslie, Frances, Evans, Care-Anne, Ewans, Lisa, Ezell, Kimberly, Fraser, Jamie L., Gallacher, Lyndon, Genetti, Casie A., Goriely, Anne, Grant, Christina L., Haack, Tobias, Higgs, Jenny E., Hinch, Anjali G., Hurles, Matthew E., Kuechler, Alma, Lachlan, Katherine L., Lalani, Seema R., Lecoquierre, François, Leitão, Elsa, Fevre, Anna Le, Leventer, Richard J., Liebelt, Jan E., Lindsay, Sarah, Lockhart, Paul J., Ma, Alan S., Macnamara, Ellen F., Mansour, Sahar, Maurer, Taylor M., Mendez, Hector R., Metcalfe, Kay, Montgomery, Stephen B., Moosajee, Mariya, Nassogne, Marie-Cécile, Neumann, Serena, O’Donoghue, Michael, O’Leary, Melanie, Palmer, Elizabeth E., Pattani, Nikhil, Phillips, John, Pitsava, Georgia, Pysar, Ryan, Rehm, Heidi L., Reuter, Chloe M., Revencu, Nicole, Riess, Angelika, Rius, Rocio, Rodan, Lance, Roscioli, Tony, Rosenfeld, Jill A., Sachdev, Rani, Shaw-Smith, Charles J., Simons, Cas, Sisodiya, Sanjay M., Snell, Penny, St Clair, Laura, Stark, Zornitza, Stewart, Helen S., Tan, Tiong Yang, Tan, Natalie B., Temple, Suzanna E. L., Thorburn, David R., Tifft, Cynthia J., Uebergang, Eloise, VanNoy, Grace E., Vasudevan, Pradeep, Vilain, Eric, Viskochil, David H., Wedd, Laura, Wheeler, Matthew T., White, Susan M., Wojcik, Monica, Wolfe, Lynne A., Wolfenson, Zoe, Wright, Caroline F., Xiao, Changrui, Zocche, David, Rubenstein, John L., Markenscoff-Papadimitriou, Eirene, Fica, Sebastian M., Baralle, Diana, Depienne, Christel, MacArthur, Daniel G., Howson, Joanna M. M., Sanders, Stephan J., O’Donnell-Luria, Anne, and Whiffin, Nicola

Published
2024
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10. Clinical and genetic keys to cerebellar ataxia due to FGF14 GAA expansions

Author

Méreaux, Jean-Loup, Davoine, Claire-Sophie, Pellerin, David, Coarelli, Giulia, Coutelier, Marie, Ewenczyk, Claire, Monin, Marie-Lorraine, Anheim, Mathieu, Le Ber, Isabelle, Thobois, Stéphane, Gobert, Florent, Guillot-Noël, Léna, Forlani, Sylvie, Jornea, Ludmila, Heinzmann, Anna, Sangare, Aude, Gaymard, Bertrand, Guyant-Maréchal, Lucie, Charles, Perrine, Marelli, Cecilia, Honnorat, Jérôme, Degos, Bertrand, Tison, François, Sangla, Sophie, Simonetta-Moreau, Marion, Salachas, François, Tchikviladzé, Maya, Castelnovo, Giovanni, Mochel, Fanny, Klebe, Stephan, Castrioto, Anna, Fenu, Silvia, Méneret, Aurélie, Bourdain, Frédéric, Wandzel, Marion, Roth, Virginie, Bonnet, Céline, Riant, Florence, Stevanin, Giovanni, Noël, Sandrine, Fauret-Amsellem, Anne-Laure, Bahlo, Melanie, Lockhart, Paul J., Brais, Bernard, Renaud, Mathilde, Brice, Alexis, and Durr, Alexandra

Published
2024
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11. Assortative mating and parental genetic relatedness contribute to the pathogenicity of variably expressive variants

Author

Smolen, Corrine, Jensen, Matthew, Dyer, Lisa, Pizzo, Lucilla, Tyryshkina, Anastasia, Banerjee, Deepro, Rohan, Laura, Huber, Emily, El Khattabi, Laila, Prontera, Paolo, Caberg, Jean-Hubert, Van Dijck, Anke, Schwartz, Charles, Faivre, Laurence, Callier, Patrick, Mosca-Boidron, Anne-Laure, Lefebvre, Mathilde, Pope, Kate, Snell, Penny, Lockhart, Paul J., Castiglia, Lucia, Galesi, Ornella, Avola, Emanuela, Mattina, Teresa, Fichera, Marco, Luana Mandarà, Giuseppa Maria, Bruccheri, Maria Grazia, Pichon, Olivier, Le Caignec, Cedric, Stoeva, Radka, Cuinat, Silvestre, Mercier, Sandra, Bénéteau, Claire, Blesson, Sophie, Nordsletten, Ashley, Martin-Coignard, Dominique, Sistermans, Erik, Kooy, R. Frank, Amor, David J., Romano, Corrado, Isidor, Bertrand, Juusola, Jane, and Girirajan, Santhosh

Published
2023
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12. Clonally Focused Public and Private T Cells in Resected Brain Tissue From Surgeries to Treat Children With Intractable Seizures

Author

Chang, Julia W, Reyes, Samuel D, Faure-Kumar, Emmanuelle, Lam, Sandi K, Lawlor, Michael W, Leventer, Richard J, Lew, Sean M, Lockhart, Paul J, Pope, Kathryn, Weiner, Howard L, Salamon, Noriko, Vinters, Harry V, Mathern, Gary W, Fallah, Aria, and Owens, Geoffrey C

Subjects
Medical Microbiology, Biomedical and Clinical Sciences, Immunology, Neurosciences, Health Disparities, Rare Diseases, Minority Health, Epilepsy, Genetics, Tuberous Sclerosis, Brain Disorders, Clinical Research, Neurodegenerative, 2.1 Biological and endogenous factors, Neurological, Adoptive Transfer, Amino Acid Sequence, Biomarkers, Brain, Child, Clone Cells, Complementarity Determining Regions, Disease Management, Disease Susceptibility, Drug Resistant Epilepsy, Gene Expression, Gene Expression Profiling, Humans, Receptors, Antigen, T-Cell, Seizures, T-Cell Antigen Receptor Specificity, T-Lymphocyte Subsets, T-Lymphocytes, T cell receptor, epilepsy, Rasmussen encephalitis, focal cortical dysplasia, tuberous sclerosis complex, Biochemistry and cell biology
Abstract

Using a targeted transcriptomics approach, we have analyzed resected brain tissue from a cohort of 53 pediatric epilepsy surgery cases, and have found that there is a spectrum of involvement of both the innate and adaptive immune systems as evidenced by the differential expression of immune-specific genes in the affected brain tissue. The specimens with the highest expression of immune-specific genes were from two Rasmussen encephalitis cases, which is known to be a neuro-immunological disease, but also from tuberous sclerosis complex (TSC), focal cortical dysplasia, and hemimegalencephaly surgery cases. We obtained T cell receptor (TCR) Vβ chain sequence data from brain tissue and blood from patients with the highest levels of T cell transcripts. The clonality indices and the frequency of the top 50 Vβ clonotypes indicated that T cells in the brain were clonally restricted. The top 50 Vβ clonotypes comprised both public and private (patient specific) clonotypes, and the TCR Vβ chain third complementarity region (CDR3) of the most abundant public Vβ clonotype in each brain sample was strikingly similar to a CDR3 that recognizes an immunodominant epitope in either human cytomegalovirus or Epstein Barr virus, or influenza virus A. We found that the frequency of 14 of the top 50 brain Vβ clonotypes from a TSC surgery case had significantly increased in brain tissue removed to control recurrent seizures 11 months after the first surgery. Conversely, we found that the frequency in the blood of 18 of the top 50 brain clonotypes from a second TSC patient, who was seizure free, had significantly decreased 5 months after surgery indicating that T cell clones found in the brain had contracted in the periphery after removal of the brain area associated with seizure activity and inflammation. However, the frequency of a public and a private clonotype significantly increased in the brain after seizures recurred and the patient underwent a second surgery. Combined single cell gene expression and TCR sequencing of brain-infiltrating leukocytes from the second surgery showed that the two clones were CD8 effector T cells, indicating that they are likely to be pathologically relevant.

Published
2021

13. Australian Genomics: Outcomes of a 5-year national program to accelerate the integration of genomics in healthcare

Author

Stark, Zornitza, Boughtwood, Tiffany, Haas, Matilda, Braithwaite, Jeffrey, Gaff, Clara L., Goranitis, Ilias, Spurdle, Amanda B., Hansen, David P., Hofmann, Oliver, Laing, Nigel, Metcalfe, Sylvia, Newson, Ainsley J., Scott, Hamish S., Thorne, Natalie, Ward, Robyn L., Dinger, Marcel E., Best, Stephanie, Long, Janet C., Grimmond, Sean M., Pearson, John, Waddell, Nicola, Barnett, Christopher P., Cook, Matthew, Field, Michael, Fielding, David, Fox, Stephen B., Gecz, Jozef, Jaffe, Adam, Leventer, Richard J., Lockhart, Paul J., Lunke, Sebastian, Mallett, Andrew J., McGaughran, Julie, Mileshkin, Linda, Nones, Katia, Roscioli, Tony, Scheffer, Ingrid E., Semsarian, Christopher, Simons, Cas, Thomas, David M., Thorburn, David R., Tothill, Richard, White, Deborah, Dunwoodie, Sally, Simpson, Peter T., Phillips, Peta, Brion, Marie-Jo, Finlay, Keri, Quinn, Michael CJ., Mattiske, Tessa, Tudini, Emma, Boggs, Kirsten, Murray, Sean, Wells, Kathy, Cannings, John, Sinclair, Andrew H., Christodoulou, John, and North, Kathryn N.

Published
2023
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14. An intronic GAA repeat expansion in FGF14 causes the autosomal-dominant adult-onset ataxia SCA27B/ATX-FGF14

Author

Rafehi, Haloom, Read, Justin, Szmulewicz, David J., Davies, Kayli C., Snell, Penny, Fearnley, Liam G., Scott, Liam, Thomsen, Mirja, Gillies, Greta, Pope, Kate, Bennett, Mark F., Munro, Jacob E., Ngo, Kathie J., Chen, Luke, Wallis, Mathew J., Butler, Ernest G., Kumar, Kishore R., Wu, Kathy HC., Tomlinson, Susan E., Tisch, Stephen, Malhotra, Abhishek, Lee-Archer, Matthew, Dolzhenko, Egor, Eberle, Michael A., Roberts, Leslie J., Fogel, Brent L., Brüggemann, Norbert, Lohmann, Katja, Delatycki, Martin B., Bahlo, Melanie, and Lockhart, Paul J.

Published
2023
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15. Author Correction: Large-scale targeted sequencing identifies risk genes for neurodevelopmental disorders

Author

Wang, Tianyun, Hoekzema, Kendra, Vecchio, Davide, Wu, Huidan, Sulovari, Arvis, Coe, Bradley P, Gillentine, Madelyn A, Wilfert, Amy B, Perez-Jurado, Luis A, Kvarnung, Malin, Sleyp, Yoeri, Earl, Rachel K, Rosenfeld, Jill A, Geisheker, Madeleine R, Han, Lin, Du, Bing, Barnett, Chris, Thompson, Elizabeth, Shaw, Marie, Carroll, Renee, Friend, Kathryn, Catford, Rachael, Palmer, Elizabeth E, Zou, Xiaobing, Ou, Jianjun, Li, Honghui, Guo, Hui, Gerdts, Jennifer, Avola, Emanuela, Calabrese, Giuseppe, Elia, Maurizio, Greco, Donatella, Lindstrand, Anna, Nordgren, Ann, Anderlid, Britt-Marie, Vandeweyer, Geert, Van Dijck, Anke, Van der Aa, Nathalie, McKenna, Brooke, Hancarova, Miroslava, Bendova, Sarka, Havlovicova, Marketa, Malerba, Giovanni, Bernardina, Bernardo Dalla, Muglia, Pierandrea, van Haeringen, Arie, Hoffer, Mariette JV, Franke, Barbara, Cappuccio, Gerarda, Delatycki, Martin, Lockhart, Paul J, Manning, Melanie A, Liu, Pengfei, Scheffer, Ingrid E, Brunetti-Pierri, Nicola, Rommelse, Nanda, Amaral, David G, Santen, Gijs WE, Trabetti, Elisabetta, Sedláček, Zdeněk, Michaelson, Jacob J, Pierce, Karen, Courchesne, Eric, Kooy, R Frank, Nordenskjöld, Magnus, Romano, Corrado, Peeters, Hilde, Bernier, Raphael A, Gecz, Jozef, Xia, Kun, and Eichler, Evan E

Subjects
Biological Sciences, Bioinformatics and Computational Biology, Commerce, Management, Tourism and Services, SPARK Consortium
Abstract

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Published
2020

16. Large-scale targeted sequencing identifies risk genes for neurodevelopmental disorders

Author

Wang, Tianyun, Hoekzema, Kendra, Vecchio, Davide, Wu, Huidan, Sulovari, Arvis, Coe, Bradley P, Gillentine, Madelyn A, Wilfert, Amy B, Perez-Jurado, Luis A, Kvarnung, Malin, Sleyp, Yoeri, Earl, Rachel K, Rosenfeld, Jill A, Geisheker, Madeleine R, Han, Lin, Du, Bing, Barnett, Chris, Thompson, Elizabeth, Shaw, Marie, Carroll, Renee, Friend, Kathryn, Catford, Rachael, Palmer, Elizabeth E, Zou, Xiaobing, Ou, Jianjun, Li, Honghui, Guo, Hui, Gerdts, Jennifer, Avola, Emanuela, Calabrese, Giuseppe, Elia, Maurizio, Greco, Donatella, Lindstrand, Anna, Nordgren, Ann, Anderlid, Britt-Marie, Vandeweyer, Geert, Van Dijck, Anke, Van der Aa, Nathalie, McKenna, Brooke, Hancarova, Miroslava, Bendova, Sarka, Havlovicova, Marketa, Malerba, Giovanni, Bernardina, Bernardo Dalla, Muglia, Pierandrea, van Haeringen, Arie, Hoffer, Mariette JV, Franke, Barbara, Cappuccio, Gerarda, Delatycki, Martin, Lockhart, Paul J, Manning, Melanie A, Liu, Pengfei, Scheffer, Ingrid E, Brunetti-Pierri, Nicola, Rommelse, Nanda, Amaral, David G, Santen, Gijs WE, Trabetti, Elisabetta, Sedláček, Zdeněk, Michaelson, Jacob J, Pierce, Karen, Courchesne, Eric, Kooy, R Frank, Nordenskjöld, Magnus, Romano, Corrado, Peeters, Hilde, Bernier, Raphael A, Gecz, Jozef, Xia, Kun, and Eichler, Evan E

Subjects
Genetics, Prevention, 2.1 Biological and endogenous factors, Aetiology, Basic Helix-Loop-Helix Transcription Factors, CCCTC-Binding Factor, Case-Control Studies, Cohort Studies, DNA Mutational Analysis, DNA-Binding Proteins, Female, Genetic Association Studies, Genetic Predisposition to Disease, Heterogeneous-Nuclear Ribonucleoprotein U, High-Throughput Nucleotide Sequencing, Humans, KCNQ3 Potassium Channel, Male, Mutation, Neurodevelopmental Disorders, RNA-Binding Proteins, Repressor Proteins, Transcription Factors, SPARK Consortium
Abstract

Most genes associated with neurodevelopmental disorders (NDDs) were identified with an excess of de novo mutations (DNMs) but the significance in case-control mutation burden analysis is unestablished. Here, we sequence 63 genes in 16,294 NDD cases and an additional 62 genes in 6,211 NDD cases. By combining these with published data, we assess a total of 125 genes in over 16,000 NDD cases and compare the mutation burden to nonpsychiatric controls from ExAC. We identify 48 genes (25 newly reported) showing significant burden of ultra-rare (MAF

Published
2020

18. Clinical, Radiological and Pathological Features of a Large American Cohort of Spinocerebellar Ataxia (SCA27B).

Author

Abou Chaar, Widad, Eranki, Anirudh N., Stevens, Hannah A., Watson, Sonya L., Wong, Darice Y., Avila, Veronica S., Delfeld, Megan, Gary, Alexander J., Tawde, Sanjukta, Triebold, Malia, Cherchi, Marcello, Xie, Tao, Lockhart, Paul J., Bahlo, Melanie, Pellerin, David, Dicaire, Marie‐Josée, Danzi, Matt, Zuchner, Stephan, Brais, Bernard C., and Perlman, Susan

Subjects
FIBROBLAST growth factors, FRIEDREICH'S ataxia, CEREBELLAR ataxia, SPINOCEREBELLAR ataxia, MEDICAL records, SYMPTOMS
Abstract

Objectives: Spinocerebellar ataxia 27B due to GAA repeat expansions in the fibroblast growth factor 14 (FGF14) gene has recently been recognized as a common cause of late‐onset hereditary cerebellar ataxia. Here we present the first report of this disease in the US population, characterizing its clinical manifestations, disease progression, pathological abnormalities, and response to 4‐aminopyridine in a cohort of 102 patients bearing GAA repeat expansions. Methods: We compiled a series of patients with SCA27B, recruited from 5 academic centers across the United States. Clinical manifestations and patient demographics were collected retrospectively from clinical records in an unblinded approach using a standardized form. Post‐mortem analysis was done on 4 brains of patients with genetically confirmed SCA27B. Results: In our cohort of 102 patients with SCA27B, we found that SCA27B was a late‐onset (57 ± 12.5 years) slowly progressive ataxia with an episodic component in 51% of patients. Balance and gait impairment were almost always present at disease onset. The principal finding on post‐mortem examination of 4 brain specimens was loss of Purkinje neurons that was most severe in the vermis most particularly in the anterior vermis. Similar to European populations, a high percent of patients 21/28 (75%) reported a positive treatment response with 4‐aminopyridine. Interpretation: Our study further estimates prevalence and further expands the clinical, imaging and pathological features of SCA27B, while looking at treatment response, disease progression, and survival in patients with this disease. Testing for SCA27B should be considered in all undiagnosed ataxia patients, especially those with episodic onset. ANN NEUROL 2024;96:1092–1103 [ABSTRACT FROM AUTHOR]

Published
2024
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19. Germline variants in tumor suppressor FBXW7 lead to impaired ubiquitination and a neurodevelopmental syndrome

Author

Stephenson, Sarah E.M., Costain, Gregory, Blok, Laura E.R., Silk, Michael A., Nguyen, Thanh Binh, Dong, Xiaomin, Alhuzaimi, Dana E., Dowling, James J., Walker, Susan, Amburgey, Kimberly, Hayeems, Robin Z., Rodan, Lance H., Schwartz, Marc A., Picker, Jonathan, Lynch, Sally A., Gupta, Aditi, Rasmussen, Kristen J., Schimmenti, Lisa A., Klee, Eric W., Niu, Zhiyv, Agre, Katherine E., Chilton, Ilana, Chung, Wendy K., Revah-Politi, Anya, Au, P.Y. Billie, Griffith, Christopher, Racobaldo, Melissa, Raas-Rothschild, Annick, Ben Zeev, Bruria, Barel, Ortal, Moutton, Sebastien, Morice-Picard, Fanny, Carmignac, Virginie, Cornaton, Jenny, Marle, Nathalie, Devinsky, Orrin, Stimach, Chandler, Wechsler, Stephanie Burns, Hainline, Bryan E., Sapp, Katie, Willems, Marjolaine, Bruel, Ange-line, Dias, Kerith-Rae, Evans, Carey-Anne, Roscioli, Tony, Sachdev, Rani, Temple, Suzanna E.L., Zhu, Ying, Baker, Joshua J., Scheffer, Ingrid E., Gardiner, Fiona J., Schneider, Amy L., Muir, Alison M., Mefford, Heather C., Crunk, Amy, Heise, Elizabeth M., Millan, Francisca, Monaghan, Kristin G., Person, Richard, Rhodes, Lindsay, Richards, Sarah, Wentzensen, Ingrid M., Cogné, Benjamin, Isidor, Bertrand, Nizon, Mathilde, Vincent, Marie, Besnard, Thomas, Piton, Amelie, Marcelis, Carlo, Kato, Kohji, Koyama, Norihisa, Ogi, Tomoo, Goh, Elaine Suk-Ying, Richmond, Christopher, Amor, David J., Boyce, Jessica O., Morgan, Angela T., Hildebrand, Michael S., Kaspi, Antony, Bahlo, Melanie, Friðriksdóttir, Rún, Katrínardóttir, Hildigunnur, Sulem, Patrick, Stefánsson, Kári, Björnsson, Hans Tómas, Mandelstam, Simone, Morleo, Manuela, Mariani, Milena, Scala, Marcello, Accogli, Andrea, Torella, Annalaura, Capra, Valeria, Wallis, Mathew, Jansen, Sandra, Waisfisz, Quinten, de Haan, Hugoline, Sadedin, Simon, Lim, Sze Chern, White, Susan M., Ascher, David B., Schenck, Annette, Lockhart, Paul J., Christodoulou, John, and Tan, Tiong Yang

Published
2022
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22. DCC mutation update: Congenital mirror movements, isolated agenesis of the corpus callosum, and developmental split brain syndrome

Author

Marsh, Ashley PL, Edwards, Timothy J, Galea, Charles, Cooper, Helen M, Engle, Elizabeth C, Jamuar, Saumya S, Méneret, Aurélie, Moutard, Marie‐Laure, Nava, Caroline, Rastetter, Agnès, Robinson, Gail, Rouleau, Guy, Roze, Emmanuel, Spencer‐Smith, Megan, Trouillard, Oriane, de Villemeur, Thierry Billette, Walsh, Christopher A, Yu, Timothy W, Consortium, IRC5, Heron, Delphine, Sherr, Elliott H, Richards, Linda J, Depienne, Christel, Leventer, Richard J, and Lockhart, Paul J

Subjects
Biological Sciences, Bioinformatics and Computational Biology, Biomedical and Clinical Sciences, Genetics, Digestive Diseases, Brain Disorders, Neurosciences, Pediatric, Clinical Research, Aetiology, 2.1 Biological and endogenous factors, Neurological, Abnormalities, Multiple, Agenesis of Corpus Callosum, Amino Acid Sequence, Binding Sites, Conserved Sequence, Databases, Genetic, Genes, DCC, Genetic Association Studies, Humans, Magnetic Resonance Imaging, Models, Molecular, Mutation, Netrin-1, Phenotype, Protein Binding, Protein Conformation, Protein Domains, Syndrome, ACC, agenesis of the corpus callosum, axon guidance, DCC, developmental split brain syndrome, horizontal gaze palsy with progressive scoliosis, mirror movements, mutation, NTN1, IRC5 Consortium, Clinical Sciences, Genetics & Heredity, Clinical sciences
Abstract

The deleted in colorectal cancer (DCC) gene encodes the netrin-1 (NTN1) receptor DCC, a transmembrane protein required for the guidance of commissural axons. Germline DCC mutations disrupt the development of predominantly commissural tracts in the central nervous system (CNS) and cause a spectrum of neurological disorders. Monoallelic, missense, and predicted loss-of-function DCC mutations cause congenital mirror movements, isolated agenesis of the corpus callosum (ACC), or both. Biallelic, predicted loss-of-function DCC mutations cause developmental split brain syndrome (DSBS). Although the underlying molecular mechanisms leading to disease remain poorly understood, they are thought to stem from reduced or perturbed NTN1 signaling. Here, we review the 26 reported DCC mutations associated with abnormal CNS development in humans, including 14 missense and 12 predicted loss-of-function mutations, and discuss their associated clinical characteristics and diagnostic features. We provide an update on the observed genotype-phenotype relationships of congenital mirror movements, isolated ACC and DSBS, and correlate this to our current understanding of the biological function of DCC in the development of the CNS. All mutations and their associated phenotypes were deposited into a locus-specific LOVD (https://databases.lovd.nl/shared/genes/DCC).

Published
2018

23. Mutations in DCC cause isolated agenesis of the corpus callosum with incomplete penetrance

Author

Marsh, Ashley PL, Heron, Delphine, Edwards, Timothy J, Quartier, Angélique, Galea, Charles, Nava, Caroline, Rastetter, Agnès, Moutard, Marie-Laure, Anderson, Vicki, Bitoun, Pierre, Bunt, Jens, Faudet, Anne, Garel, Catherine, Gillies, Greta, Gobius, Ilan, Guegan, Justine, Heide, Solveig, Keren, Boris, Lesne, Fabien, Lukic, Vesna, Mandelstam, Simone A, McGillivray, George, McIlroy, Alissandra, Méneret, Aurélie, Mignot, Cyril, Morcom, Laura R, Odent, Sylvie, Paolino, Annalisa, Pope, Kate, Riant, Florence, Robinson, Gail A, Spencer-Smith, Megan, Srour, Myriam, Stephenson, Sarah EM, Tankard, Rick, Trouillard, Oriane, Welniarz, Quentin, Wood, Amanda, Brice, Alexis, Rouleau, Guy, Attié-Bitach, Tania, Delatycki, Martin B, Mandel, Jean-Louis, Amor, David J, Roze, Emmanuel, Piton, Amélie, Bahlo, Melanie, Billette de Villemeur, Thierry, Sherr, Elliott H, Leventer, Richard J, Richards, Linda J, Lockhart, Paul J, and Depienne, Christel

Subjects
Biological Sciences, Genetics, Abnormalities, Multiple, Agenesis of Corpus Callosum, Brain, Corpus Callosum, DCC Receptor, Developmental Disabilities, Family, Female, Humans, Male, Mutation, Nervous System Malformations, Neural Stem Cells, Penetrance, Phenotype, Receptors, Cell Surface, Tumor Suppressor Proteins, Medical and Health Sciences, Developmental Biology, Agricultural biotechnology, Bioinformatics and computational biology
Abstract

Brain malformations involving the corpus callosum are common in children with developmental disabilities. We identified DCC mutations in four families and five sporadic individuals with isolated agenesis of the corpus callosum (ACC) without intellectual disability. DCC mutations result in variable dominant phenotypes with decreased penetrance, including mirror movements and ACC associated with a favorable developmental prognosis. Possible phenotypic modifiers include the type and location of mutation and the sex of the individual.

Published
2017

24. Targeted sequencing identifies 91 neurodevelopmental-disorder risk genes with autism and developmental-disability biases

Author

Stessman, Holly AF, Xiong, Bo, Coe, Bradley P, Wang, Tianyun, Hoekzema, Kendra, Fenckova, Michaela, Kvarnung, Malin, Gerdts, Jennifer, Trinh, Sandy, Cosemans, Nele, Vives, Laura, Lin, Janice, Turner, Tychele N, Santen, Gijs, Ruivenkamp, Claudia, Kriek, Marjolein, van Haeringen, Arie, Aten, Emmelien, Friend, Kathryn, Liebelt, Jan, Barnett, Christopher, Haan, Eric, Shaw, Marie, Gecz, Jozef, Anderlid, Britt-Marie, Nordgren, Ann, Lindstrand, Anna, Schwartz, Charles, Kooy, R Frank, Vandeweyer, Geert, Helsmoortel, Celine, Romano, Corrado, Alberti, Antonino, Vinci, Mirella, Avola, Emanuela, Giusto, Stefania, Courchesne, Eric, Pramparo, Tiziano, Pierce, Karen, Nalabolu, Srinivasa, Amaral, David G, Scheffer, Ingrid E, Delatycki, Martin B, Lockhart, Paul J, Hormozdiari, Fereydoun, Harich, Benjamin, Castells-Nobau, Anna, Xia, Kun, Peeters, Hilde, Nordenskjöld, Magnus, Schenck, Annette, Bernier, Raphael A, and Eichler, Evan E

Subjects
Biological Sciences, Bioinformatics and Computational Biology, Genetics, Biotechnology, Brain Disorders, Intellectual and Developmental Disabilities (IDD), Pediatric, Autism, Mental Health, Genetic Testing, Mental health, Autistic Disorder, Developmental Disabilities, Female, Humans, Intellectual Disability, Male, Mutation, Phenotype, Medical and Health Sciences, Developmental Biology, Agricultural biotechnology, Bioinformatics and computational biology
Abstract

Gene-disruptive mutations contribute to the biology of neurodevelopmental disorders (NDDs), but most of the related pathogenic genes are not known. We sequenced 208 candidate genes from >11,730 cases and >2,867 controls. We identified 91 genes, including 38 new NDD genes, with an excess of de novo mutations or private disruptive mutations in 5.7% of cases. Drosophila functional assays revealed a subset with increased involvement in NDDs. We identified 25 genes showing a bias for autism versus intellectual disability and highlighted a network associated with high-functioning autism (full-scale IQ >100). Clinical follow-up for NAA15, KMT5B, and ASH1L highlighted new syndromic and nonsyndromic forms of disease.

Published
2017

25. Expanding the clinical and genetic spectrum of ALPK3 variants: Phenotypes identified in pediatric cardiomyopathy patients and adults with heterozygous variants

Author

Herkert, Johanna C., Verhagen, Judith M.A., Yotti, Raquel, Haghighi, Alireza, Phelan, Dean G., James, Paul A., Brown, Natasha J., Stutterd, Chloe, Macciocca, Ivan, Leong, Kai'En, Bulthuis, Marian L.C., van Bever, Yolande, van Slegtenhorst, Marjon A., Boven, Ludolf G., Roberts, Amy E., Agarwal, Radhika, Seidman, Jonathan, Lakdawala, Neal K., Fernández-Avilés, Francisco, Burke, Michael A., Pierpont, Mary Ella., Braunlin, Elizabeth, Ḉağlayan, Ahmet Okay, Barge-Schaapveld, Daniela Q.C.M., Birnie, Erwin, van Osch-Gevers, Lennie, van Langen, Irene M., Jongbloed, Jan D.H., Lockhart, Paul J., Amor, David J., Seidman, Christine E., and van de Laar, Ingrid M.B.H.

Published
2020
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29. Loss of function of SLC25A46 causes lethal congenital pontocerebellar hypoplasia.

Author

Wan, Jijun, Steffen, Janos, Yourshaw, Michael, Mamsa, Hafsa, Andersen, Erik, Rudnik-Schöneborn, Sabine, Pope, Kate, Howell, Katherine B, McLean, Catriona A, Kornberg, Andrew J, Joseph, Jörg, Lockhart, Paul J, Zerres, Klaus, Ryan, Monique M, Nelson, Stanley F, Koehler, Carla M, and Jen, Joanna C

Subjects
Biomedical and Clinical Sciences, Neurosciences, Genetics, Pediatric, Orphan Drug, Neurodegenerative, Rare Diseases, Brain Disorders, Congenital Structural Anomalies, Aetiology, 2.1 Biological and endogenous factors, Neurological, Amino Acids, Animals, Animals, Genetically Modified, Brain, Cell Line, Transformed, Cells, Cultured, Cerebellar Diseases, Cohort Studies, Embryo, Nonmammalian, Female, Genetic Predisposition to Disease, Humans, Infant, Magnetic Resonance Imaging, Male, Mitochondria, Mitochondrial Dynamics, Mitochondrial Proteins, Models, Molecular, Mutation, Phosphate Transport Proteins, Polymorphism, Single Nucleotide, Zebrafish, pontocerebellar hypoplasia, SLC25A46, mitochondria, optic atrophy spectrum disorder, Medical and Health Sciences, Psychology and Cognitive Sciences, Neurology & Neurosurgery, Biomedical and clinical sciences, Health sciences, Psychology
Abstract

Disturbed mitochondrial fusion and fission have been linked to various neurodegenerative disorders. In siblings from two unrelated families who died soon after birth with a profound neurodevelopmental disorder characterized by pontocerebellar hypoplasia and apnoea, we discovered a missense mutation and an exonic deletion in the SLC25A46 gene encoding a mitochondrial protein recently implicated in optic atrophy spectrum disorder. We performed functional studies that confirmed the mitochondrial localization and pro-fission properties of SLC25A46. Knockdown of slc24a46 expression in zebrafish embryos caused brain malformation, spinal motor neuron loss, and poor motility. At the cellular level, we observed abnormally elongated mitochondria, which was rescued by co-injection of the wild-type but not the mutant slc25a46 mRNA. Conversely, overexpression of the wild-type protein led to mitochondrial fragmentation and disruption of the mitochondrial network. In contrast to mutations causing non-lethal optic atrophy, missense mutations causing lethal congenital pontocerebellar hypoplasia markedly destabilize the protein. Indeed, the clinical severity appears inversely correlated with the relative stability of the mutant protein. This genotype-phenotype correlation underscores the importance of SLC25A46 and fine tuning of mitochondrial fission and fusion in pontocerebellar hypoplasia and central neurodevelopment in addition to optic and peripheral neuropathy across the life span.

Published
2016

31. Bioinformatics-Based Identification of Expanded Repeats: A Non-reference Intronic Pentamer Expansion in RFC1 Causes CANVAS

Author

Rafehi, Haloom, Szmulewicz, David J., Bennett, Mark F., Sobreira, Nara L.M., Pope, Kate, Smith, Katherine R., Gillies, Greta, Diakumis, Peter, Dolzhenko, Egor, Eberle, Michael A., Barcina, María García, Breen, David P., Chancellor, Andrew M., Cremer, Phillip D., Delatycki, Martin B., Fogel, Brent L., Hackett, Anna, Halmagyi, G. Michael, Kapetanovic, Solange, Lang, Anthony, Mossman, Stuart, Mu, Weiyi, Patrikios, Peter, Perlman, Susan L., Rosemergy, Ian, Storey, Elsdon, Watson, Shaun R.D., Wilson, Michael A., Zee, David S., Valle, David, Amor, David J., Bahlo, Melanie, and Lockhart, Paul J.

Published
2019
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32. Diagnostic utility of exome sequencing followed by research reanalysis in human brain malformations

Author

Kooshavar, Daniz, primary, Amor, David J, additional, Boggs, Kirsten, additional, Baker, Naomi, additional, Barnett, Christopher, additional, de Silva, Michelle G, additional, Edwards, Samantha, additional, Fahey, Michael C, additional, Marum, Justine E, additional, Snell, Penny, additional, Bozaoglu, Kiymet, additional, Pope, Kate, additional, Mohammad, Shekeeb S, additional, Riney, Kate, additional, Sachdev, Rani, additional, Scheffer, Ingrid E, additional, Schenscher, Sarah, additional, Silberstein, John, additional, Smith, Nicholas, additional, Tom, Melanie, additional, Ware, Tyson L, additional, Lockhart, Paul J, additional, and Leventer, Richard J, additional

Published
2024
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34. Advancing molecular, phenotypic and mechanistic insights ofFGF14pathogenic expansions (SCA27B)

Author

Mohren, Lars, primary, Erdlenbruch, Friedrich, additional, Leitão, Elsa, additional, Kilpert, Fabian, additional, Hönes, G. Sebastian, additional, Kaya, Sabine, additional, Schröder, Christopher, additional, Thieme, Andreas, additional, Sturm, Marc, additional, Park, Joohyun, additional, Schlüter, Agatha, additional, Ruiz, Montserrat, additional, Morales de la Prida, Moisés, additional, Casasnovas, Carlos, additional, Becker, Kerstin, additional, Roggenbuck, Ulla, additional, Pechlivanis, Sonali, additional, Kaiser, Frank J., additional, Synofzik, Matthis, additional, Wirth, Thomas, additional, Anheim, Mathieu, additional, Haack, Tobias B., additional, Lockhart, Paul J., additional, Jöckel, Karl-Heinz, additional, Pujol, Aurora, additional, Klebe, Stephan, additional, Timmann, Dagmar, additional, and Depienne, Christel, additional

Published
2024
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37. Genetic abnormalities in a large cohort of Coffin–Siris syndrome patients

Author

Sekiguchi, Futoshi, Tsurusaki, Yoshinori, Okamoto, Nobuhiko, Teik, Keng Wee, Mizuno, Seiji, Suzumura, Hiroshi, Isidor, Bertrand, Ong, Winnie Peitee, Haniffa, Muzhirah, White, Susan M., Matsuo, Mari, Saito, Kayoko, Phadke, Shubha, Kosho, Tomoki, Yap, Patrick, Goyal, Manisha, Clarke, Lorne A., Sachdev, Rani, McGillivray, George, Leventer, Richard J., Patel, Chirag, Yamagata, Takanori, Osaka, Hitoshi, Hisaeda, Yoshiya, Ohashi, Hirofumi, Shimizu, Kenji, Nagasaki, Keisuke, Hamada, Junpei, Dateki, Sumito, Sato, Takashi, Chinen, Yasutsugu, Awaya, Tomonari, Kato, Takeo, Iwanaga, Kougoro, Kawai, Masahiko, Matsuoka, Takashi, Shimoji, Yoshikazu, Tan, Tiong Yang, Kapoor, Seema, Gregersen, Nerine, Rossi, Massimiliano, Marie-Laure, Mathieu, McGregor, Lesley, Oishi, Kimihiko, Mehta, Lakshmi, Gillies, Greta, Lockhart, Paul J., Pope, Kate, Shukla, Anju, Girisha, Katta Mohan, Abdel-Salam, Ghada M. H., Mowat, David, Coman, David, Kim, Ok Hwa, Cordier, Marie-Pierre, Gibson, Kate, Milunsky, Jeff, Liebelt, Jan, Cox, Helen, El Chehadeh, Salima, Toutain, Annick, Saida, Ken, Aoi, Hiromi, Minase, Gaku, Tsuchida, Naomi, Iwama, Kazuhiro, Uchiyama, Yuri, Suzuki, Toshifumi, Hamanaka, Kohei, Azuma, Yoshiteru, Fujita, Atsushi, Imagawa, Eri, Koshimizu, Eriko, Takata, Atsushi, Mitsuhashi, Satomi, Miyatake, Satoko, Mizuguchi, Takeshi, Miyake, Noriko, and Matsumoto, Naomichi

Published
2019
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39. The clinical, imaging, pathological and genetic landscape of bottom-of-sulcus dysplasia

Author

Macdonald-Laurs, Emma, primary, Warren, Aaron E L, additional, Francis, Peter, additional, Mandelstam, Simone A, additional, Lee, Wei Shern, additional, Coleman, Matthew, additional, Stephenson, Sarah E M, additional, Barton, Sarah, additional, D’Arcy, Colleen, additional, Lockhart, Paul J, additional, Leventer, Richard J, additional, and Harvey, A Simon, additional

Published
2023
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42. The clinical, imaging, pathological and genetic landscape of bottom-of-sulcus dysplasia.

Author

Macdonald-Laurs, Emma, Warren, Aaron E L, Francis, Peter, Mandelstam, Simone A, Lee, Wei Shern, Coleman, Matthew, Stephenson, Sarah E M, Barton, Sarah, D'Arcy, Colleen, Lockhart, Paul J, Leventer, Richard J, and Harvey, A Simon

Subjects
EPILEPSY, TEMPORAL lobectomy, VOXEL-based morphometry, PARTIAL epilepsy, DYSPLASIA, FOCAL cortical dysplasia, SODIUM channels, SEIZURES (Medicine)
Abstract

Bottom-of-sulcus dysplasia (BOSD) is increasingly recognized as a cause of drug-resistant, surgically-remediable, focal epilepsy, often in seemingly MRI-negative patients. We describe the clinical manifestations, morphological features, localization patterns and genetics of BOSD, with the aims of improving management and understanding pathogenesis. We studied 85 patients with BOSD diagnosed between 2005–2022. Presenting seizure and EEG characteristics, clinical course, genetic findings and treatment response were obtained from medical records. MRI (3 T) and 18F-FDG-PET scans were reviewed systematically for BOSD morphology and metabolism. Histopathological analysis and tissue genetic testing were performed in 64 operated patients. BOSD locations were transposed to common imaging space to study anatomical location, functional network localization and relationship to normal MTOR gene expression. All patients presented with stereotyped focal seizures with rapidly escalating frequency, prompting hospitalization in 48%. Despite 42% patients having seizure remissions, usually with sodium channel blocking medications, most eventually became drug-resistant and underwent surgery (86% seizure-free). Prior developmental delay was uncommon but intellectual, language and executive dysfunction were present in 24%, 48% and 29% when assessed preoperatively, low intellect being associated with greater epilepsy duration. BOSDs were missed on initial MRI in 68%, being ultimately recognized following repeat MRI, 18F-FDG-PET or image postprocessing. MRI features were grey-white junction blurring (100%), cortical thickening (91%), transmantle band (62%), increased cortical T1 signal (46%) and increased subcortical FLAIR signal (26%). BOSD hypometabolism was present on 18F-FDG-PET in 99%. Additional areas of cortical malformation or grey matter heterotopia were present in eight patients. BOSDs predominated in frontal and pericentral cortex and related functional networks, mostly sparing temporal and occipital cortex, and limbic and visual networks. Genetic testing yielded pathogenic mTOR pathway variants in 63% patients, including somatic MTOR variants in 47% operated patients and germline DEPDC5 or NPRL3 variants in 73% patients with familial focal epilepsy. BOSDs tended to occur in regions where the healthy brain normally shows lower MTOR expression, suggesting these regions may be more vulnerable to upregulation of MTOR activity. Consistent with the existing literature, these results highlight (i) clinical features raising suspicion of BOSD; (ii) the role of somatic and germline mTOR pathway variants in patients with sporadic and familial focal epilepsy associated with BOSD; and (iii) the role of 18F-FDG-PET alongside high-field MRI in detecting subtle BOSD. The anatomical and functional distribution of BOSDs likely explain their seizure, EEG and cognitive manifestations and may relate to relative MTOR expression. [ABSTRACT FROM AUTHOR]

Published
2024
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47. Somatic GNAQ mutation in the forme fruste of Sturge-Weber syndrome

Author

Hildebrand, Michael S., Harvey, A. Simon, Malone, Stephen, Damiano, John A., Do, Hongdo, Ye, Zimeng, McQuillan, Lara, Maixner, Wirginia, Kalnins, Renate, Nolan, Bernadette, Wood, Martin, Ozturk, Ezgi, Jones, Nigel C., Gillies, Greta, Pope, Kate, Lockhart, Paul J., Dobrovic, Alexander, Leventer, Richard J., Scheffer, Ingrid E., and Berkovic, Samuel F.

Published
2018
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49. Assortative mating and parental genetic relatedness drive the pathogenicity of variably expressive variants

Author

Smolen, Corrine, primary, Jensen, Matthew, additional, Dyer, Lisa, additional, Pizzo, Lucilla, additional, Tyryshkina, Anastasia, additional, Banerjee, Deepro, additional, Rohan, Laura, additional, Huber, Emily, additional, El Khattabi, Laila, additional, Prontera, Paolo, additional, Caberg, Jean-Hubert, additional, Van Dijck, Anke, additional, Schwartz, Charles, additional, Faivre, Laurence, additional, Callier, Patrick, additional, Mosca-Boidron, Anne-Laure, additional, Lefebvre, Mathilde, additional, Pope, Kate, additional, Snell, Penny, additional, Lockhart, Paul J., additional, Castiglia, Lucia, additional, Galesi, Ornella, additional, Avola, Emanuela, additional, Mattina, Teresa, additional, Fichera, Marco, additional, Luana Mandara, Giuseppa Maria, additional, Grazia Bruccheri, Maria, additional, Pichon, Olivier, additional, Le Caignec, Cedric, additional, Stoeva, Radka, additional, Cuinat, Silvestre, additional, Mercier, Sandra, additional, Beneteau, Claire, additional, Blesson, Sophie, additional, Nordsletten, Ashley, additional, Martin-Coignard, Dominique, additional, Sistermans, Erik, additional, Kooy, R. Frank, additional, Amor, David J., additional, Romano, Corrado, additional, Isidor, Bertrand, additional, Juusola, Jane, additional, and Girirajan, Santhosh, additional

Published
2023
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