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1. GWAS meta-analysis of intrahepatic cholestasis of pregnancy implicates multiple hepatic genes and regulatory elements

Author

Dixon, Peter H., Levine, Adam P., Cebola, Inês, Chan, Melanie M. Y., Amin, Aliya S., Aich, Anshul, Mozere, Monika, Maude, Hannah, Mitchell, Alice L., Zhang, Jun, Adlard, Julian, Ahmed, Munaza, Aitman, Tim, Alachkar, Hana, Allsup, David, Almeida-King, Jeff, Ancliff, Philip, Antrobus, Richard, Armstrong, Ruth, Arno, Gavin, Ashford, Sofie, Astle, William, Attwood, Anthony, Babbs, Chris, Bakchoul, Tamam, Bariana, Tadbir, Barwell, Julian, Bennett, David, Bentley, David, Bierzynska, Agnieszka, Biss, Tina, Bleda, Marta, Bogaard, Harm, Bourne, Christian, Boyce, Sara, Bradley, John, Breen, Gerome, Brennan, Paul, Brewer, Carole, Brown, Matthew, Browning, Michael, Buchan, Rachel, Buckland, Matthew, Bueser, Teofila, Burns, Siobhan, Burren, Oliver, Calleja, Paul, Carr-White, Gerald, Carss, Keren, Casey, Ruth, Caulfield, Mark, Chambers, John, Chambers, Jennifer, Cheng, Floria, Chinnery, Patrick F., Christian, Martin, Church, Colin, Brod, Naomi Clements, Coghlan, Gerry, Colby, Elizabeth, Cole, Trevor, Collins, Janine, Collins, Peter, Colombo, Camilla, Condliffe, Robin, Cook, Stuart, Cook, Terry, Cooper, Nichola, Corris, Paul, Crisp-Hihn, Abigail, Curry, Nicola, Danesino, Cesare, Daniels, Matthew, Daugherty, Louise, Davis, John, Deevi, Sri V. V., Dent, Timothy, Dewhurst, Eleanor, Dixon, Peter, Downes, Kate, Drazyk, Anna, Drewe, Elizabeth, Dutt, Tina, Edgar, David, Edwards, Karen, Egner, William, Erber, Wendy, Erwood, Marie, Estiu, Maria C., Evans, Gillian, Evans, Dafydd Gareth, Everington, Tamara, Eyries, Mélanie, Favier, Remi, Fletcher, Debra, Fox, James, Frary, Amy, French, Courtney, Freson, Kathleen, Frontini, Mattia, Gale, Daniel, Gall, Henning, Geoghegan, Claire, Gerighty, Terry, Ghio, Stefano, Ghofrani, Hossein-Ardeschir, Gibbs, Simon, Gilmour, Kimberley, Girerd, Barbara, Goddard, Sarah, Gomez, Keith, Gordins, Pavels, Gosal, David, Gräf, Stefan, Grassi, Luigi, Greene, Daniel, Greenhalgh, Lynn, Greinacher, Andreas, Gresele, Paolo, Griffiths, Philip, Grigoriadou, Sofia, Grocock, Russell, Grozeva, Detelina, Hackett, Scott, Hadinnapola, Charaka, Hague, William, Haimel, Matthias, Hall, Matthew, Hanson, Helen, Harkness, Kirsty, Harper, Andrew, Harris, Claire, Hart, Daniel, Hassan, Ahamad, Hayman, Grant, Henderson, Alex, Hoffmann, Jonathan, Horvath, Rita, Houweling, Arjan, Howard, Luke, Hu, Fengyuan, Hudson, Gavin, Hughes, Joseph, Huissoon, Aarnoud, Humbert, Marc, Humphray, Sean, Hunter, Sarah, Hurles, Matthew, Izatt, Louise, James, Roger, Johnson, Sally, Jolles, Stephen, Jolley, Jennifer, Jurkute, Neringa, Kasanicki, Mary, Kazkaz, Hanadi, Kazmi, Rashid, Kelleher, Peter, Kiely, David, Kingston, Nathalie, Klima, Robert, Kostadima, Myrto, Kovacs, Gabor, Koziell, Ania, Kreuzhuber, Roman, Kuijpers, Taco, Kumar, Ajith, Kumararatne, Dinakantha, Kuria, Manju, Laffa, Michael, Lalloo, Fiona, Lamber, Michele, Alle, Hana Lango, Lawrie, Allan, Layton, Mark, Lentaigne, Claire, Levine, Adam, Linger, Rachel, Longhurst, Hilary, Louka, Eleni, Ross, Robert MacKenzie, Madan, Bella, Maher, Eamonn, Maimaris, Jesmeen, Mangles, Sarah, Mapeta, Rutendo, Marchbank, Kevin, Marks, Stephen, Markus, Hugh S., Marshall, Andrew, Martin, Jennifer, Mathias, Mary, Matthews, Emma, Maxwell, Heather, McAlinden, Paul, McCarthy, Mark, Meacham, Stuart, Mead, Adam, Megy, Karyn, Mehta, Sarju, Michaelides, Michel, Millar, Carolyn, Moledina, Shahin, Montani, David, Moor, Tony, Morrell, Nicholas, Muir, Keith, Mumford, Andrew, Newnham, Michael, O'Sullivan, Jennifer, Obaji, Samya, Okoli, Steven, Olschewski, Andrea, Olschewski, Horst, Ong, Kai Ren, Ormondroy, Elizabeth, Ouwehan, Willem, Papadi, Sofia, Park, Soo-Mi, Parry, David, Paterson, Joan, Peacock, Andrew, Peden, John, Peerlinck, Kathelijne, Penkett, Christopher, Pepke-Zaba, Joanna, Petersen, Romina, Pyle, Angela, Rankin, Stuart, Rao, Anupama, Raymond, F. Lucy, Rayner-Matthew, Paula, Rees, Christine, Rendon, Augusto, Renton, Tara, Rice, Andrew, Richardson, Sylvia, Richter, Alex, Roberts, Irene, Roughley, Catherine, Roy, Noemi, Sadeghi-Alavijeh, Omid, Saleem, Moin, Samani, Nilesh, Sanchis-Juan, Alba, Sargur, Ravishankar, Satchell, Simon, Savic, Sinisa, Scelsi, Laura, Schulman, Sol, Scully, Marie, Searle, Claire, Seeger, Werner, Sewell, Carrock, Seyres, Denis, Shapiro, Susie, Sharmardina, Olga, Shtoyerman, Rakefet, Sibson, Keith, Side, Lucy, Simeoni, Ilenia, Simpson, Michael, Sivapalaratnam, Suthesh, Skytte, Anne-Bine, Smith, Katherine, Smith, Kenneth G. C., Snape, Katie, Soubrier, Florent, Staines, Simon, Staples, Emily, Stark, Hannah, Stephens, Jonathan, Stirrups, Kathleen, Stock, Sophie, Suntharalingam, Jay, Swietlik, Emilia, Tait, R. Campbell, Talks, Kate, Tan, Rhea, Thaventhiran, James, Themistocleous, Andreas, Thomas, Moira, Thomson, Kate, Thrasher, Adrian, Thys, Chantal, Tischkowitz, Marc, Titterton, Catherine, Toh, Cheng-Hock, Toshner, Mark, Traylor, Matthew, Treacy, Carmen, Trembath, Richard, Tuna, Salih, Turek, Wojciech, Turro, Ernest, Vale, Tom, Van Geet, Chris, Van Zuydam, Natalie, Vazquez-Lopez, Marta, von Ziegenweidt, Julie, Noordegraaf, Anton Vonk, Waisfisz, Quintin, Walker, Suellen, Ware, James, Watkins, Hugh, Watt, Christopher, Webster, Andrew, Wei, Wei, Welch, Steven, Wessels, Julie, Westbury, Sarah, Westwood, John-Paul, Wharton, John, Whitehorn, Deborah, Whitworth, James, Wilkins, Martin R., Wong, Edwin, Wood, Nicholas, Wood, Yvette, Woods, Geoff, Woodward, Emma, Wort, Stephen, Worth, Austen, Yates, Katherine, Yong, Patrick, Young, Tim, Yu, Ping, Yu-Wai-Man, Patrick, Ambrose, J. C., Arumugam, P., Bevers, R., Bleda, M., Boardman-Pretty, F., Boustred, C. R., Brittain, H., Brown, M. A., Caulfield, M. J., Chan, G. C., Fowler, T., Giess, A., Hamblin, A., Henderson, S., Hubbard, T. J. P., Jackson, R., Jones, L. J., Kasperaviciute, D., Kayikci, M., Kousathanas, A., Lahnstein, L., Leigh, S. E. A., Leong, I. U. S., Lopez, F. J., Maleady-Crowe, F., McEntagart, M., Minneci, F., Moutsianas, L., Mueller, M., Murugaesu, N., Need, A. C., O'Donovan, P., Odhams, C. A., Patch, C., Perez-Gil, D., Pereira, M. B., Pullinger, J., Rahim, T., Rendon, A., Rogers, T., Savage, K., Sawant, K., Scott, R. H., Siddiq, A., Sieghart, A., Smith, S. C., Sosinsky, A., Stuckey, A., Tanguy, M., Taylor Tavares, A. L., Thomas, E. R. A., Thompson, S. R., Tucci, A., Welland, M. J., Williams, E., Witkowska, K., Wood, S. M., Chambers, Jenny, Syngelaki, Argyro, Donnelly, Jennifer, Cooley, Sharon, Geary, Michael, Nicolaides, Kypros, Thorsell, Malin, Hague, William M., Estiu, Maria Cecilia, Marschall, Hanns-Ulrich, Gale, Daniel P., Williamson, Catherine, Pulmonary medicine, ACS - Pulmonary hypertension & thrombosis, Human genetics, ACS - Atherosclerosis & ischemic syndromes, Pediatrics, Foundation for the National Institutes of Health (FNIH), The Academy of Medical Sciences, British Heart Foundation, Imperial College Healthcare NHS Trust- BRC Funding, Paediatric Infectious Diseases / Rheumatology / Immunology, and ARD - Amsterdam Reproduction and Development

Subjects
VARIANT, LOCI, INTEGRATIVE ANALYSIS, General Physics and Astronomy, Cholestasis, Intrahepatic, TRIGLYCERIDE LEVELS, DISEASE, General Biochemistry, Genetics and Molecular Biology, Bile Acids and Salts, Pregnancy, Humans, MUTATION, Science & Technology, Multidisciplinary, Genomics England Research Consortium Collaborators, Infant, Newborn, NIHR BioResource, General Chemistry, GLUCOCORTICOID-RECEPTOR, Multidisciplinary Sciences, ALKALINE SPHINGOMYELINASE, Pregnancy Complications, INSIGHTS, Science & Technology - Other Topics, Premature Birth, Female, FASTING GLUCOSE, Genome-Wide Association Study
Abstract

Intrahepatic cholestasis of pregnancy (ICP) is a pregnancy-specific liver disorder affecting 0.5-2% of pregnancies. The majority of cases present in the third trimester with pruritus, elevated serum bile acids and abnormal serum liver tests. ICP is associated with an increased risk of adverse outcomes, including spontaneous preterm birth and stillbirth. Whilst rare mutations affecting hepatobiliary transporters contribute to the aetiology of ICP, the role of common genetic variation in ICP has not been systematically characterised to date. Here, we perform genome-wide association studies (GWAS) and meta-analyses for ICP across three studies including 1138 cases and 153,642 controls. Eleven loci achieve genome-wide significance and have been further investigated and fine-mapped using functional genomics approaches. Our results pinpoint common sequence variation in liver-enriched genes and liver-specific cis-regulatory elements as contributing mechanisms to ICP susceptibility. ispartof: NATURE COMMUNICATIONS vol:13 issue:1 ispartof: location:England status: published

Published
2022
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2. Diagnostic high-throughput sequencing of 2396 patients with bleeding, thrombotic, and platelet disorders

Author

Minka J A Vries, Alexander Tolios, Johanna Gebhart, Ilenia Simeoni, Will Thomas, Stefanie Hofer, Matthias Haimel, Sofia Papadia, Keith Gomez, Daniel Greene, Rutendo Mapeta, Christopher J. Penkett, Willem H. Ouwehand, Michael Laffan, Kate Downes, Ernest Turro, Suthesh Sivapalaratnam, Louise C. Daugherty, Yvonne M. C. Henskens, Karyn Megy, Nick Gleadall, Howard Martin, Ingrid Pabinger, Martin Besser, Stephen Abbs, Andrew D Mumford, Daniel Duarte, Jonathan Stephens, Shoshana Revel-Vilk, Namir Al Hasso, Salih Tuna, Olga Shamardina, Sri V V Deevi, Chantal Thys, Emily Symington, Kathleen Freson, Nichola Cooper, Imperial College Healthcare NHS Trust- BRC Funding, RS: CARIM - R1.04 - Clinical thrombosis and haemostasis, RS: CARIM - R1 - Thrombosis and haemostasis, Promovendi CD, Biochemie, Faculteit FHML Centraal, MUMC+: DA CDL Algemeen (9), and RS: Carim - B04 Clinical thrombosis and Haemostasis

Subjects
Male, 0301 basic medicine, Platelet disorder, Immunology, Gene Dosage, Hemorrhage, Context (language use), VARIANTS, 030204 cardiovascular system & hematology, BIOBANK, Bioinformatics, Biochemistry, 03 medical and health sciences, 0302 clinical medicine, Humans, Medicine, Copy-number variation, Hemostatic function, 1102 Cardiorespiratory Medicine and Haematology, MUTATION, GENETIC DIAGNOSIS, Blood Platelet Disorders, INHERITED THROMBOCYTOPENIA, Hemostasis, business.industry, High-Throughput Nucleotide Sequencing, 1103 Clinical Sciences, Thrombosis, Oligogenic Inheritance, NIHR BioResource, Cell Biology, Hematology, medicine.disease, DYSFUNCTION, Bleeding diathesis, 030104 developmental biology, 1114 Paediatrics and Reproductive Medicine, Female, business
Abstract

A targeted high-throughput sequencing (HTS) panel test for clinical diagnostics requires careful consideration of the inclusion of appropriate diagnostic-grade genes, the ability to detect multiple types of genomic variation with high levels of analytic sensitivity and reproducibility, and variant interpretation by a multidisciplinary team (MDT) in the context of the clinical phenotype. We have sequenced 2396 index patients using the ThromboGenomics HTS panel test of diagnostic-grade genes known to harbor variants associated with rare bleeding, thrombotic, or platelet disorders (BTPDs). The molecular diagnostic rate was determined by the clinical phenotype, with an overall rate of 49.2% for all thrombotic, coagulation, platelet count, and function disorder patients and a rate of 3.2% for patients with unexplained bleeding disorders characterized by normal hemostasis test results. The MDT classified 745 unique variants, including copy number variants (CNVs) and intronic variants, as pathogenic, likely pathogenic, or variants of uncertain significance. Half of these variants (50.9%) are novel and 41 unique variants were identified in 7 genes recently found to be implicated in BTPDs. Inspection of canonical hemostasis pathways identified 29 patients with evidence of oligogenic inheritance. A molecular diagnosis has been reported for 894 index patients providing evidence that introducing an HTS genetic test is a valuable addition to laboratory diagnostics in patients with a high likelihood of having an inherited BTPD. ispartof: BLOOD vol:134 issue:23 pages:2082-2091 ispartof: location:United States status: published

Published
2019
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3. De Novo Truncating Mutations in WASF1 Cause Intellectual Disability with Seizures

Author

Yoko Ito, Keren J. Carss, Sofia T. Duarte, Taila Hartley, Boris Keren, Manju A. Kurian, Isabelle Marey, Perinne Charles, Carla Mendonça, Caroline Nava, Rolph Pfundt, Alba Sanchis-Juan, Hans van Bokhoven, Anthony van Essen, Conny van Ravenswaaij-Arts, Kym M. Boycott, Kristin D. Kernohan, Sarah Dyack, F. Lucy Raymond, Timothy Aitman, David Bennett, Mark Caulfield, Patrick Chinnery, Daniel Gale, Ania Koziell, Taco W. Kuijpers, Michael A. Laffan, Eamonn Maher, Hugh S. Markus, Nicholas W. Morrell, Willem H. Ouwehand, David J. Perry, Irene Roberts, Kenneth G.C. Smith, Adrian Thrasher, Hugh Watkins, Catherine Williamson, Geoffrey Woods, Sofie Ashford, John R. Bradley, Debra Fletcher, Tracey Hammerton, Roger James, Nathalie Kingston, Christopher J. Penkett, Kathleen Stirrups, Marijke Veltman, Tim Young, Matthew Brown, Naomi Clements-Brod, John Davis, Eleanor Dewhurst, Helen Dolling, Marie Erwood, Amy Frary, Rachel Linger, Jennifer M. Martin, Sofia Papadia, Karola Rehnstrom, Hannah Stark, David Allsup, Steve Austin, Tamam Bakchoul, Tadbir K. Bariana, Paula Bolton-Maggs, Elizabeth Chalmers, Janine Collins, Peter Collins, Wendy N. Erber, Tamara Everington, Remi Favier, Kathleen Freson, Bruce Furie, Michael Gattens, Johanna Gebhart, Keith Gomez, Daniel Greene, Andreas Greinacher, Paolo Gresele, Daniel Hart, Johan W.M. Heemskerk, Yvonne Henskens, Rashid Kazmi, David Keeling, Anne M. Kelly, Michele P. Lambert, Claire Lentaigne, Ri Liesner, Mike Makris, Sarah Mangles, Mary Mathias, Carolyn M. Millar, Andrew Mumford, Paquita Nurden, Jeanette Payne, John Pasi, Kathelijne Peerlinck, Shoshana Revel-Vilk, Michael Richards, Matthew Rondina, Catherine Roughley, Sol Schulman, Harald Schulze, Marie Scully, Suthesh Sivapalaratnam, Matthew Stubbs, R. Campbell Tait, Kate Talks, Jecko Thachil, Cheng-Hock Toh, Ernest Turro, Chris Van Geet, Minka De Vries, Timothy Q. Warner, Henry Watson, Sarah Westbury, Abigail Furnell, Rutendo Mapeta, Paula Rayner-Matthews, Ilenia Simeoni, Simon Staines, Jonathan Stephens, Christopher Watt, Deborah Whitehorn, Antony Attwood, Louise Daugherty, Sri V.V. Deevi, Csaba Halmagyi, Fengyuan Hu, Vera Matser, Stuart Meacham, Karyn Megy, Olga Shamardina, Catherine Titterton, Salih Tuna, Ping Yu, Julie von Ziegenweldt, William Astle, Marta Bleda, Stefan Gräf, Matthias Haimel, Hana Lango-Allen, Sylvia Richardson, Paul Calleja, Stuart Rankin, Wojciech Turek, Julie Anderson, Christine Bryson, Jenny Carmichael, Coleen McJannet, Sophie Stock, Louise Allen, Gautum Ambegaonkar, Ruth Armstrong, Gavin Arno, Maria Bitner-Glindzicz, Angie Brady, Natalie Canham, Manali Chitre, Emma Clement, Virginia Clowes, Patrick Deegan, Charu Deshpande, Rainer Doffinger, Helen Firth, Frances Flinter, Courtney French, Alice Gardham, Neeti Ghali, Paul Gissen, Detelina Grozeva, Robert Henderson, Anke Hensiek, Simon Holden, Muriel Holder, Susan Holder, Jane Hurst, Dragana Josifova, Deepa Krishnakumar, Melissa Lees, Robert MacLaren, Anna Maw, Sarju Mehta, Michel Michaelides, Anthony Moore, Elaine Murphy, Soo-Mi Park, Alasdair Parker, Chris Patch, Joan Paterson, Julia Rankin, Evan Reid, Elisabeth Rosser, Richard Sandford, Saikat Santra, Richard Scott, Aman Sohal, Penelope Stein, Ellen Thomas, Dorothy Thompson, Marc Tischkowitz, Julie Vogt, Emma Wakeling, Evangeline Wassmer, Andrew Webster, Sonia Ali, Souad Ali, Harm J. Boggard, Colin Church, Gerry Coghlan, Victoria Cookson, Paul A. Corris, Amanda Creaser-Myers, Rosa DaCosta, Natalie Dormand, Mélanie Eyries, Henning Gall, Pavandeep K. Ghataorhe, Stefano Ghio, Ardi Ghofrani, J. Simon R. Gibbs, Barbara Girerd, Alan Greenhalgh, Charaka Hadinnapola, Arjan C. Houweling, Marc Humbert, Anna Huis in’t Veld, Fiona Kennedy, David G. Kiely, Gabor Kovacs, Allan Lawrie, Rob V. Mackenzie Ross, Rajiv Machado, Larahmie Masati, Sharon Meehan, Shahin Moledina, David Montani, Shokri Othman, Andrew J. Peacock, Joanna Pepke-Zaba, Val Pollock, Gary Polwarth, Lavanya Ranganathan, Christopher J. Rhodes, Kevin Rue-Albrecht, Gwen Schotte, Debbie Shipley, Florent Soubrier, Laura Southgate, Laura Scelsi, Jay Suntharalingam, Yvonne Tan, Mark Toshner, Carmen M. Treacy, Richard Trembath, Anton Vonk Noordegraaf, Sara Walker, Ivy Wanjiku, John Wharton, Martin Wilkins, Stephen J. Wort, Katherine Yates, Hana Alachkar, Richard Antrobus, Gururaj Arumugakani, Chiara Bacchelli, Helen Baxendale, Claire Bethune, Shahnaz Bibi, Claire Booth, Michael Browning, Siobhan Burns, Anita Chandra, Nichola Cooper, Sophie Davies, Lisa Devlin, Elizabeth Drewe, David Edgar, William Egner, Rohit Ghurye, Kimberley Gilmour, Sarah Goddard, Pavel Gordins, Sofia Grigoriadou, Scott Hackett, Rosie Hague, Lorraine Harper, Grant Hayman, Archana Herwadkar, Aarnoud Huissoon, Stephen Jolles, Peter Kelleher, Dinakantha Kumararatne, Sara Lear, Hilary Longhurst, Lorena Lorenzo, Jesmeen Maimaris, Ania Manson, Elizabeth McDermott, Sai Murng, Sergey Nejentsev, Sadia Noorani, Eric Oksenhendler, Mark Ponsford, Waseem Qasim, Isabella Quinti, Alex Richter, Crina Samarghitean, Ravishankar Sargur, Sinisa Savic, Suranjith Seneviratne, Carrock Sewell, Emily Staples, Hans Stauss, James Thaventhiran, Moira Thomas, Steve Welch, Lisa Willcocks, Nigel Yeatman, Patrick Yong, Phil Ancliff, Christian Babbs, Mark Layton, Eleni Louka, Simon McGowan, Adam Mead, Noémi Roy, Jenny Chambers, Peter Dixon, Cecelia Estiu, Bill Hague, Hanns-Ulrich Marschall, Michael Simpson, Sam Chong, Ingrid Emmerson, Lionel Ginsberg, David Gosal, Rob Hadden, Rita Horvath, Mohamed Mahdi-Rogers, Adnan Manzur, Andrew Marshall, Emma Matthews, Mark McCarthy, Mary Reilly, Tara Renton, Andrew Rice, Andreas Themistocleous, Tom Vale, Natalie Van Zuydam, Suellen Walker, Liz Ormondroyd, Gavin Hudson, Wei Wei, Patrick Yu Wai Man, James Whitworth, Maryam Afzal, Elizabeth Colby, Moin Saleem, Omid S. Alavijeh, H. Terry Cook, Sally Johnson, Adam P. Levine, Edwin K.S. Wong, Rhea Tan, Alex MacKenzie, Jacek Majewski, Michael Brudno, Dennis Bulman, David Dyment, Freson, Kathleen, Peerlinck, Kathelijne, Van Geet, Christel, Paediatric Infectious Diseases / Rheumatology / Immunology, ARD - Amsterdam Reproduction and Development, RS: CARIM - R1.04 - Clinical thrombosis and haemostasis, MUMC+: DA CDL Algemeen (9), Med Microbiol, Infect Dis & Infect Prev, Medical Research Council (MRC), Clinical Cognitive Neuropsychiatry Research Program (CCNP), APH - Aging & Later Life, Pediatric surgery, Human genetics, ACS - Atherosclerosis & ischemic syndromes, CCA - Cancer biology and immunology, CCA - Cancer Treatment and quality of life, Pulmonary medicine, ACS - Pulmonary hypertension & thrombosis, APH - Quality of Care, and Molecular cell biology and Immunology

Subjects
0301 basic medicine, Male, Care4Rare Canada Consortium, WAVE FAMILY PROTEINS, actin cytoskeleton, PROTEIN, HDE NEU PED, medicine.disease_cause, Whole Exome Sequencing, 0302 clinical medicine, Neurodevelopmental disorder, SYNAPTIC PLASTICITY, Intellectual disability, WAVE1 complex, PLASTICITY, EXCHANGE, 11 Medical and Health Sciences, Exome sequencing, Genetics (clinical), seizures, Genetics & Heredity, Genetics, Mutation, WASF1, DENDRITIC SPINES, developmental delay, Female, DISEASE GENE-DISCOVERY, Adult, Heterozygote, GENES, DISORDERS, autism, Biology, ACTIN, 03 medical and health sciences, Young Adult, Seizures, Report, Intellectual Disability, Exome Sequencing, medicine, Humans, PROTRUSIONS, recurrent de novo truncating mutations, Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7], COMPLEX, lamellipodia, neurodevelopmental disorder, Actin remodeling, Heterozygote advantage, NIHR BioResource, 06 Biological Sciences, medicine.disease, Actin cytoskeleton, Wiskott-Aldrich Syndrome Protein Family, 030104 developmental biology, WAVE, RETARDATION, 030217 neurology & neurosurgery
Abstract

Next-generation sequencing has been invaluable in the elucidation of the genetic etiology of many subtypes of intellectual disability in recent years. Here, using exome sequencing and whole-genome sequencing, we identified three de novo truncating mutations in WAS protein family member 1 (WASF1) in five unrelated individuals with moderate to profound intellectual disability with autistic features and seizures. WASF1, also known as WAVE1, is part of the WAVE complex and acts as a mediator between Rac-GTPase and actin to induce actin polymerization. The three mutations connected by Matchmaker Exchange were c.1516C>T (p.Arg506Ter), which occurs in three unrelated individuals, c.1558C>T (p.Gln520Ter), and c.1482delinsGCCAGG (p.Ile494MetfsTer23). All three variants are predicted to partially or fully disrupt the C-terminal actin-binding WCA domain. Functional studies using fibroblast cells from two affected individuals with the c.1516C>T mutation showed a truncated WASF1 and a defect in actin remodeling. This study provides evidence that de novo heterozygous mutations in WASF1 cause a rare form of intellectual disability. ispartof: AMERICAN JOURNAL OF HUMAN GENETICS vol:103 issue:1 pages:144-153 ispartof: location:United States status: published

Published
2018
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4. PIGO deficiency : Palmoplantar keratoderma and novel mutations

Author

Jaak Jaeken, Chris Van Geet, Ilenia Simeoni, Marie Morren, Isabelle I. Salles, Kathleen Freson, Ernest Turro, Gepke Visser, British Heart Foundation, Jaeken, Jaak [0000-0003-1571-9707], Salles, Isabelle [0000-0001-7394-0587], Simeoni, Ilenia [0000-0001-5039-2194], Turro, Ernest [0000-0002-1820-6563], Freson, Kathleen [0000-0002-4381-2442], and Apollo - University of Cambridge Repository

Subjects
Male, 0301 basic medicine, Letter, Glycosylphosphatidylinositols, lcsh:Medicine, Hyperkeratosis, Research & Experimental Medicine, Epilepsy, 0302 clinical medicine, Keratoderma, Palmoplantar, Medicine, Missense mutation, Genetics(clinical), Pharmacology (medical), Letter to the Editor, EPILEPSY, Genetics (clinical), Exome sequencing, Genetics & Heredity, Genetics, Medicine(all), General Medicine, GPI-ANCHOR, Phenotype, PIGO-CDG, Medicine, Research & Experimental, Life Sciences & Biomedicine, Adolescent, DISORDERS, Frameshift mutation, 03 medical and health sciences, Humans, Science & Technology, business.industry, THROMBOCYTOPENIA, GLYCOSYLATION, lcsh:R, Membrane Proteins, Hyperphosphatasemia, NIHR BioResource, 1199 Other Medical And Health Sciences, medicine.disease, GENE, Human genetics, carbohydrates (lipids), MICE, Glycosylphosphatidylinositol, 030104 developmental biology, Palmoplantar keratoderma, GPI, DEFECT, Mutation, Immunology, CDG, Congenital disorder(s) of glycosylation, business, 030217 neurology & neurosurgery, Platelet dysfunction
Abstract

Background Several genetic defects have been identified in the glycosylphosphatidylinositol (GPI) anchor synthesis, including mutations in PIGO encoding phosphatidylinositol glycan anchor biosynthesis class O protein. These defects constitute a subgroup of the congenital disorders of glycosylation (CDG). Seven patients from five families have been reported carrying variants in PIGO that cause an autosomal recessive syndrome characterised by dysmorphism, psychomotor disability, epilepsy and hyperphosphatasemia. Methods Whole exome sequencing was performed in a boy with dysmorphism, psychomotor disability, epilepsy, palmoplantar keratoderma, hyperphosphatasemia and platelet dysfunction without a clinical bleeding phenotype. Results Two novel variants in PIGO were detected. The missense variant encoding p. His871Pro was inherited from the boy’s father while the frameshift variant encoding p. Arg604ProfsTer40 was maternally inherited. Conclusion A boy with two novel PIGO variants is reported. The skin phenotype and platelet dysfunction in this patient have not been described in previously reported patients with PIGO deficiency but it is of course uncertain whether these are caused by this disorder. The literature on PIGO deficiency is reviewed. Electronic supplementary material The online version of this article (doi:10.1186/s13023-017-0654-9) contains supplementary material, which is available to authorized users.

Published
2017

5. Phenotype Similarity Regression for Identifying the Genetic Determinants of Rare Diseases

Author

Ernest Turro, Sylvia Richardson, Daniel Greene, Richardson, Sylvia [0000-0003-1998-492X], Turro Bassols, Ernest [0000-0002-1820-6563], and Apollo - University of Cambridge Repository

Subjects
0301 basic medicine, Formins, Disease, Biology, DNA sequencing, Article, 03 medical and health sciences, Bayes' theorem, Rare Diseases, Human Phenotype Ontology, Genotype, Databases, Genetic, Genetics, Guanine Nucleotide Exchange Factors, Humans, Genetics(clinical), Actinin, Gene, Genetics (clinical), Genetic Association Studies, Adaptor Proteins, Signal Transducing, Genetics & Heredity, Models, Genetic, fungi, Bayes Theorem, NIHR BioResource, 11 Medical And Health Sciences, 06 Biological Sciences, Phenotype, 030104 developmental biology, Logistic Models, Rare disease
Abstract

Rare genetic disorders, which can now be studied systematically with affordable genome sequencing, are often caused by high-penetrance rare variants. Such disorders are often heterogeneous and characterized by abnormalities spanning multiple organ systems ascertained with variable clinical precision. Existing methods for identifying genes with variants responsible for rare diseases summarize phenotypes with unstructured binary or quantitative variables. The Human Phenotype Ontology (HPO) allows composite phenotypes to be represented systematically but association methods accounting for the ontological relationship between HPO terms do not exist. We present a Bayesian method to model the association between an HPO-coded patient phenotype and genotype. Our method estimates the probability of an association together with an HPO-coded phenotype characteristic of the disease. We thus formalize a clinical approach to phenotyping that is lacking in standard regression techniques for rare disease research. We demonstrate the power of our method by uncovering a number of true associations in a large collection of genome-sequenced and HPO-coded cases with rare diseases.

Published
2015

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