1. Phenotypic expansion of CACNA1C-associated disorders to include isolated neurological manifestations
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Lance H. Rodan, Rebecca C. Spillmann, Harley T. Kurata, Shawn M. Lamothe, Jasmine Maghera, Rami Abou Jamra, Anna Alkelai, Stylianos E. Antonarakis, Isis Atallah, Omer Bar-Yosef, Frédéric Bilan, Kathrine Bjorgo, Xavier Blanc, Patrick Van Bogaert, Yoav Bolkier, Lindsay C. Burrage, Björn U. Christ, Jorge L. Granadillo, Patricia Dickson, Kirsten A. Donald, Christèle Dubourg, Aviva Eliyahu, Lisa Emrick, Kendra Engleman, Michaela Veronika Gonfiantini, Jean-Marc Good, Judith Kalser, Chiara Kloeckner, Guus Lachmeijer, Marina Macchiaiolo, Francesco Nicita, Sylvie Odent, Emily O’Heir, Xilma Ortiz-Gonzalez, Marta Pacio-Miguez, María Palomares-Bralo, Loren Pena, Konrad Platzer, Mathieu Quinodoz, Emmanuelle Ranza, Jill A. Rosenfeld, Eliane Roulet-Perez, Avni Santani, Fernando Santos-Simarro, Ben Pode-Shakked, Cara Skraban, Rachel Slaugh, Andrea Superti-Furga, Isabelle Thiffault, Richard H. van Jaabrsveld, Marie Vincent, Hong-Gang Wang, Pia Zacher, Mercedes E. Alejandro, Mahshid S. Azamian, Carlos A. Bacino, Ashok Balasubramanyam, Hsiao-Tuan Chao, Gary D. Clark, William J. Craigen, Hongzheng Dai, Shweta U. Dhar, Lisa T. Emrick, Alica M. Goldman, Neil A. Hanchard, Fariha Jamal, Lefkothea Karaviti, Seema R. Lalani, Brendan H. Lee, Richard A. Lewis, Ronit Marom, Paolo M. Moretti, David R. Murdock, Sarah K. Nicholas, James P. Orengo, Jennifer E. Posey, Lorraine Potocki, Susan L. Samson, Daryl A. Scott, Alyssa A. Tran, Tiphanie P. Vogel, Michael F. Wangler, Shinya Yamamoto, Christine M. Eng, Pengfei Liu, Patricia A. Ward, Edward Behrens, Matthew Deardorff, Marni Falk, Kelly Hassey, Kathleen Sullivan, Adeline Vanderver, David B. Goldstein, Heidi Cope, Allyn McConkie-Rosell, Kelly Schoch, Vandana Shashi, Edward C. Smith, Jennifer A. Sullivan, Queenie K.-G. Tan, Nicole M. Walley, Pankaj B. Agrawal, Alan H. Beggs, Gerard T. Berry, Lauren C. Briere, Laurel A. Cobban, Matthew Coggins, Cynthia M. Cooper, Elizabeth L. Fieg, Frances High, Ingrid A. Holm, Susan Korrick, Joel B. Krier, Sharyn A. Lincoln, Joseph Loscalzo, Richard L. Maas, Calum A. MacRae, J. Carl Pallais, Deepak A. Rao, Edwin K. Silverman, Joan M. Stoler, David A. Sweetser, Melissa Walker, Chris A. Walsh, Cecilia Esteves, Emily G. Kelley, Isaac S. Kohane, Kimberly LeBlanc, Alexa T. McCray, Anna Nagy, Surendra Dasari, Brendan C. Lanpher, Ian R. Lanza, Eva Morava, Devin Oglesbee, Guney Bademci, Deborah Barbouth, Stephanie Bivona, Olveen Carrasquillo, Ta Chen Peter Chang, Irman Forghani, Alana Grajewski, Rosario Isasi, Byron Lam, Roy Levitt, Xue Zhong Liu, Jacob McCauley, Ralph Sacco, Mario Saporta, Judy Schaechter, Mustafa Tekin, Fred Telischi, Willa Thorson, Stephan Zuchner, Heather A. Colley, Jyoti G. Dayal, David J. Eckstein, Laurie C. Findley, Donna M. Krasnewich, Laura A. Mamounas, Teri A. Manolio, John J. Mulvihill, Grace L. LaMoure, Madison P. Goldrich, Tiina K. Urv, Argenia L. Doss, Maria T. Acosta, Carsten Bonnenmann, Precilla D’Souza, David D. Draper, Carlos Ferreira, Rena A. Godfrey, Catherine A. Groden, Ellen F. Macnamara, Valerie V. Maduro, Thomas C. Markello, Avi Nath, Donna Novacic, Barbara N. Pusey, Camilo Toro, Colleen E. Wahl, Eva Baker, Elizabeth A. Burke, David R. Adams, William A. Gahl, May Christine V. Malicdan, Cynthia J. Tifft, Lynne A. Wolfe, John Yang, Bradley Power, Bernadette Gochuico, Laryssa Huryn, Lea Latham, Joie Davis, Deborah Mosbrook-Davis, Francis Rossignol, null Ben Solomon, John MacDowall, Audrey Thurm, Wadih Zein, Muhammad Yousef, Margaret Adam, Laura Amendola, Michael Bamshad, Anita Beck, Jimmy Bennett, Beverly Berg-Rood, Elizabeth Blue, Brenna Boyd, Peter Byers, Sirisak Chanprasert, Michael Cunningham, Katrina Dipple, Daniel Doherty, Dawn Earl, Ian Glass, Katie Golden-Grant, Sihoun Hahn, Anne Hing, Fuki M. Hisama, Martha Horike-Pyne, Gail P. Jarvik, Jeffrey Jarvik, Suman Jayadev, Christina Lam, Kenneth Maravilla, Heather Mefford, J. Lawrence Merritt, Ghayda Mirzaa, Deborah Nickerson, Wendy Raskind, Natalie Rosenwasser, C. Ron Scott, Angela Sun, Virginia Sybert, Stephanie Wallace, Mark Wener, Tara Wenger, Euan A. Ashley, Gill Bejerano, Jonathan A. Bernstein, Devon Bonner, Terra R. Coakley, Liliana Fernandez, Paul G. Fisher, Laure Fresard, Jason Hom, Yong Huang, Jennefer N. Kohler, Elijah Kravets, Marta M. Majcherska, Beth A. Martin, Shruti Marwaha, Colleen E. McCormack, Archana N. Raja, Chloe M. Reuter, Maura Ruzhnikov, Jacinda B. Sampson, Kevin S. Smith, Shirley Sutton, Holly K. Tabor, Brianna M. Tucker, Matthew T. Wheeler, Diane B. Zastrow, Chunli Zhao, William E. Byrd, Andrew B. Crouse, Matthew Might, Mariko Nakano-Okuno, Jordan Whitlock, Gabrielle Brown, Manish J. Butte, Esteban C. Dell’Angelica, Naghmeh Dorrani, Emilie D. Douine, Brent L. Fogel, Irma Gutierrez, Alden Huang, Deborah Krakow, Hane Lee, Sandra K. Loo, Bryan C. Mak, Martin G. Martin, Julian A. Martínez-Agosto, Elisabeth McGee, Stanley F. Nelson, Shirley Nieves-Rodriguez, Christina G.S. Palmer, Jeanette C. Papp, Neil H. Parker, Genecee Renteria, Rebecca H. Signer, Janet S. Sinsheimer, Jijun Wan, Lee-kai Wang, Katherine Wesseling Perry, Jeremy D. Woods, Justin Alvey, Ashley Andrews, Jim Bale, John Bohnsack, Lorenzo Botto, John Carey, Laura Pace, Nicola Longo, Gabor Marth, Paolo Moretti, Aaron Quinlan, Matt Velinder, Dave Viskochil, Pinar Bayrak-Toydemir, Rong Mao, Monte Westerfield, Anna Bican, Elly Brokamp, Laura Duncan, Rizwan Hamid, Jennifer Kennedy, Mary Kozuira, John H. Newman, John A. PhillipsIII, Lynette Rives, Amy K. Robertson, Emily Solem, Joy D. Cogan, F. Sessions Cole, Nichole Hayes, Dana Kiley, Kathy Sisco, Jennifer Wambach, Daniel Wegner, Dustin Baldridge, Stephen Pak, Timothy Schedl, Jimann Shin, Lilianna Solnica-Krezel, Eric Rush, Geoffrey S. Pitt, Ping Yee Billie Au, Boston Children's Hospital, University of Alberta, Universität Leipzig [Leipzig], Geneva University Hospital (HUG), Tel Aviv University [Tel Aviv], Service Génétique Médicale [CHU Poitiers], Centre hospitalier universitaire de Poitiers (CHU Poitiers), Cibles moléculaires et thérapeutiques de la maladie d'Alzheimer (CIMoTHeMA), Université de Poitiers, Laboratoire Jacques-Louis Lions (LJLL (UMR_7598)), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Baylor College of Medicine (BCM), Baylor University, Washington University School of Medicine in St. Louis, Washington University in Saint Louis (WUSTL), CHU Pontchaillou [Rennes], Institut de Génétique et Développement de Rennes (IGDR), Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS), Lausanne University Hospital, Centre de référence Maladies Rares CLAD-Ouest [Rennes], Broad Institute of MIT and Harvard (BROAD INSTITUTE), Harvard Medical School [Boston] (HMS)-Massachusetts Institute of Technology (MIT)-Massachusetts General Hospital [Boston], Children’s Hospital of Philadelphia (CHOP ), Hospital Universitario La Paz, unité de recherche de l'institut du thorax UMR1087 UMR6291 (ITX), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Nantes - UFR de Médecine et des Techniques Médicales (UFR MEDECINE), Université de Nantes (UN)-Université de Nantes (UN), Centre hospitalier universitaire de Nantes (CHU Nantes), Duke University [Durham], University of Kansas Medical Center [Lawrence], University of Missouri System, Children's Mercy Hospital [Kansas City], Weill Cornell Medicine [New York], University of Calgary, Research reported in this paper was supported by the NIH Common Fund, through the Office of Strategic Coordination/Office of the NIH Director under award number(s) (U01HG007709 [Baylor College of Medicine] and U01HG007672 [Duke University to V.S.]). Additional funding for this project was under award number 1RO1HD090132-01A1 (Cornell University to G.P.). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. Additional funding was provided by a Canadian Institutes of Health Research Grant (MOP-97988 to H.T.K.), and a Rowland and Muriel Haryett Fellowship (University of Alberta, to S.M.L.) and a fellowship from the Ministry of Education and Research of the Community of Madrid to M.P.M. (B2017/BMD-3721), and microgrant from the Rare Disease Foundation (P.Y.B.A. and H.T.K.). Sequencing and analysis was supported by the National Human Genome Research Institute grants UM1 HG008900 and R01 HG009141. K.A.D., B.C., and E.O. were supported the National Institute of Mental Health U01 MH119689., Universität Leipzig, Columbia University Medical Center (CUMC), Columbia University [New York], Tel Aviv University (TAU), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Unité de recherche de l'institut du thorax (ITX-lab), University of Kansas Medical Center [Kansas City, KS, USA], Weill Cornell Medicine [Cornell University], and Cornell University [New York]
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Ataxia ,Calcium Channels, L-Type ,Long QT syndrome ,Timothy syndrome ,Bioinformatics ,Article ,03 medical and health sciences ,Epilepsy ,0302 clinical medicine ,Intellectual disability ,medicine ,Missense mutation ,Humans ,Autistic Disorder ,Genetics (clinical) ,030304 developmental biology ,0303 health sciences ,[SDV.GEN]Life Sciences [q-bio]/Genetics ,business.industry ,medicine.disease ,Hypotonia ,Long QT Syndrome ,Phenotype ,Autism ,Syndactyly ,medicine.symptom ,business ,030217 neurology & neurosurgery - Abstract
International audience; Purpose:CACNA1C encodes the alpha-1-subunit of a voltage-dependent L-type calcium channel expressed in human heart and brain. Heterozygous variants in CACNA1C have previously been reported in association with Timothy syndrome and long QT syndrome. Several case reports have suggested that CACNA1C variation may also be associated with a primarily neurological phenotype.Methods:We describe 25 individuals from 22 families with heterozygous variants in CACNA1C, who present with predominantly neurological manifestations.Results:Fourteen individuals have de novo, nontruncating variants and present variably with developmental delays, intellectual disability, autism, hypotonia, ataxia, and epilepsy. Functional studies of a subgroup of missense variants via patch clamp experiments demonstrated differential effects on channel function in vitro, including loss of function (p.Leu1408Val), neutral effect (p.Leu614Arg), and gain of function (p.Leu657Phe, p.Leu614Pro). The remaining 11 individuals from eight families have truncating variants in CACNA1C. The majority of these individuals have expressive language deficits, and half have autism.Conclusion:We expand the phenotype associated with CACNA1C variants to include neurodevelopmental abnormalities and epilepsy, in the absence of classic features of Timothy syndrome or long QT syndrome.
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- 2020