2023
TRAPPC6B biallelic variants cause a neurodevelopmental disorder with TRAPP II and trafficking disruptions
Almousa H, Lewis S, Bakhtiari S, Nordlie S, Pagnozzi A, Magee H, Efthymiou S, Heim J, Cornejo P, Zaki M, Anwar N, Maqbool S, Rahman F, Neilson D, Vemuri A, Jin S, Yang X, Heidari A, van Gassen K, Trimouille A, Thauvin-Robinet C, Liu J, Bruel A, Tomoum H, Shata M, Hashem M, Toosi M, Karimiani E, Yeşil G, Lingappa L, Baruah D, Ebrahimzadeh F, Van-Gils J, Faivre L, Zamani M, Galehdari H, Sadeghian S, Shariati G, Mohammad R, van der Smagt J, Qari A, Vincent J, Innes A, Dursun A, Özgül R, Akar H, Bilguvar K, Mignot C, Keren B, Raveli C, Burglen L, Afenjar A, Kaat L, van Slegtenhorst M, Alkuraya F, Houlden H, Padilla-Lopez S, Maroofian R, Sacher M, Kruer M. TRAPPC6B biallelic variants cause a neurodevelopmental disorder with TRAPP II and trafficking disruptions. Brain 2023, 147: 311-324. PMID: 37713627, PMCID: PMC10766242, DOI: 10.1093/brain/awad301.Peer-Reviewed Original Research
2021
Bi-allelic variants in SPATA5L1 lead to intellectual disability, spastic-dystonic cerebral palsy, epilepsy, and hearing loss
Richard EM, Bakhtiari S, Marsh APL, Kaiyrzhanov R, Wagner M, Shetty S, Pagnozzi A, Nordlie SM, Guida BS, Cornejo P, Magee H, Liu J, Norton BY, Webster RI, Worgan L, Hakonarson H, Li J, Guo Y, Jain M, Blesson A, Rodan LH, Abbott MA, Comi A, Cohen JS, Alhaddad B, Meitinger T, Lenz D, Ziegler A, Kotzaeridou U, Brunet T, Chassevent A, Smith-Hicks C, Ekstein J, Weiden T, Hahn A, Zharkinbekova N, Turnpenny P, Tucci A, Yelton M, Horvath R, Gungor S, Hiz S, Oktay Y, Lochmuller H, Zollino M, Morleo M, Marangi G, Nigro V, Torella A, Pinelli M, Amenta S, Husain RA, Grossmann B, Rapp M, Steen C, Marquardt I, Grimmel M, Grasshoff U, Korenke GC, Owczarek-Lipska M, Neidhardt J, Radio FC, Mancini C, Claps Sepulveda DJ, McWalter K, Begtrup A, Crunk A, Guillen Sacoto MJ, Person R, Schnur RE, Mancardi MM, Kreuder F, Striano P, Zara F, Chung WK, Marks WA, van Eyk CL, Webber DL, Corbett MA, Harper K, Berry JG, MacLennan AH, Gecz J, Tartaglia M, Salpietro V, Christodoulou J, Kaslin J, Padilla-Lopez S, Bilguvar K, Munchau A, Ahmed ZM, Hufnagel RB, Fahey MC, Maroofian R, Houlden H, Sticht H, Mane SM, Rad A, Vona B, Jin SC, Haack TB, Makowski C, Hirsch Y, Riazuddin S, Kruer MC. Bi-allelic variants in SPATA5L1 lead to intellectual disability, spastic-dystonic cerebral palsy, epilepsy, and hearing loss. American Journal Of Human Genetics 2021, 108: 2006-2016. PMID: 34626583, PMCID: PMC8546233, DOI: 10.1016/j.ajhg.2021.08.003.Peer-Reviewed Original ResearchConceptsSensorineural hearing lossCerebral palsyHearing lossBi-allelic variantsInner earRodent inner earDevelopmental delay/intellectual disabilityThin corpus callosumGlial cell nucleiIntellectual disabilityRat hippocampal neuronsWhite matter volumeNeurosensory hair cellsPeriventricular leukomalaciaQuantitative volumetryCerebral volumeCorpus callosumHippocampal neuronsMatter volumeReceptor functionBrain imagingHair cellsProminent expressionNeurodevelopmental phenotypesAffected individualsBiallelic loss-of-function variants in the splicing regulator NSRP1 cause a severe neurodevelopmental disorder with spastic cerebral palsy and epilepsy
Calame DG, Bakhtiari S, Logan R, Coban-Akdemir Z, Du H, Mitani T, Fatih JM, Hunter JV, Herman I, Pehlivan D, Jhangiani SN, Person R, Schnur RE, Jin SC, Bilguvar K, Posey JE, Koh S, Firouzabadi SG, Alehabib E, Tafakhori A, Esmkhani S, Gibbs RA, Noureldeen MM, Zaki MS, Marafi D, Darvish H, Kruer MC, Lupski JR. Biallelic loss-of-function variants in the splicing regulator NSRP1 cause a severe neurodevelopmental disorder with spastic cerebral palsy and epilepsy. Genetics In Medicine 2021, 23: 2455-2460. PMID: 34385670, PMCID: PMC8633036, DOI: 10.1038/s41436-021-01291-x.Peer-Reviewed Original ResearchConceptsSpastic cerebral palsyC-terminal nuclear localization signalNuclear localization signalCerebral palsyPremature termination codonFunction variantsHuman neurodevelopmental disordersLocalization signalSplicing regulatorsGenomics initiativesLast exonRegulator geneTermination codonDisease traitsMutant transcriptsDevelopmental delayMouse neurodevelopmentSevere neurodevelopmental disorderMendelian disordersFunction variant allelesNeurodevelopmental disordersMolecular analysisPathogenic variationProtein 1Variable microcephaly
2018
De Novo Pathogenic Variants in CACNA1E Cause Developmental and Epileptic Encephalopathy with Contractures, Macrocephaly, and Dyskinesias
Helbig KL, Lauerer RJ, Bahr JC, Souza IA, Myers CT, Uysal B, Schwarz N, Gandini MA, Huang S, Keren B, Mignot C, Afenjar A, de Villemeur T, Héron D, Nava C, Valence S, Buratti J, Fagerberg CR, Soerensen KP, Kibaek M, Kamsteeg EJ, Koolen DA, Gunning B, Schelhaas HJ, Kruer MC, Fox J, Bakhtiari S, Jarrar R, Padilla-Lopez S, Lindstrom K, Jin SC, Zeng X, Bilguvar K, Papavasileiou A, Xing Q, Zhu C, Boysen K, Vairo F, Lanpher BC, Klee EW, Tillema JM, Payne ET, Cousin MA, Kruisselbrink TM, Wick MJ, Baker J, Haan E, Smith N, Sadeghpour A, Davis EE, Katsanis N, Genomics T, Allori A, Angrist M, Ashley P, Bidegain M, Boyd B, Chambers E, Cope H, Cotten C, Curington T, Davis E, Ellestad S, Fisher K, French A, Gallentine W, Goldberg R, Hill K, Kansagra S, Katsanis N, Katsanis S, Kurtzberg J, Marcus J, McDonald M, Mikati M, Miller S, Murtha A, Perilla Y, Pizoli C, Purves T, Ross S, Sadeghpour A, Smith E, Wiener J, Corbett M, MacLennan A, Gecz J, Biskup S, Goldmann E, Rodan L, Kichula E, Segal E, Jackson K, Asamoah A, Dimmock D, McCarrier J, Botto L, Filloux F, Tvrdik T, Cascino G, Klingerman S, Neumann C, Wang R, Jacobsen J, Nolan M, Snell R, Lehnert K, Sadleir L, Anderlid B, Kvarnung M, Guerrini R, Friez M, Lyons M, Leonhard J, Kringlen G, Casas K, Achkar C, Smith L, Rotenberg A, Poduri A, Sanchis-Juan A, Carss K, Rankin J, Zeman A, Raymond F, Blyth M, Kerr B, Ruiz K, Urquhart J, Hughes I, Banka S, Study D, Hedrich U, Scheffer I, Helbig I, Zamponi G, Lerche H, Mefford H. De Novo Pathogenic Variants in CACNA1E Cause Developmental and Epileptic Encephalopathy with Contractures, Macrocephaly, and Dyskinesias. American Journal Of Human Genetics 2018, 103: 666-678. PMID: 30343943, PMCID: PMC6216110, DOI: 10.1016/j.ajhg.2018.09.006.Peer-Reviewed Original ResearchConceptsR-type calcium currentsEpileptic encephalopathyCalcium currentPathogenic variantsDevelopmental impairmentR-type calcium channelsDe novo pathogenic variantsCause of DEEProfound developmental impairmentHyperkinetic movement disordersNovo pathogenic variantsAnti-epileptic drug topiramateCentral nervous systemAbundant epileptiform activityVoltage-gated CaSevere neurodevelopmental disorderSeizure freedomInfantile-onset seizuresIntractable seizuresEpileptiform activityVoltage-dependent activationMovement disordersSevere hypotoniaHuman epilepsySynaptic transmission
2016
Loss-of-Function Mutations in FRRS1L Lead to an Epileptic-Dyskinetic Encephalopathy
Madeo M, Stewart M, Sun Y, Sahir N, Wiethoff S, Chandrasekar I, Yarrow A, Rosenfeld JA, Yang Y, Cordeiro D, McCormick EM, Muraresku CC, Jepperson TN, McBeth LJ, Seidahmed MZ, Khashab H, Hamad M, Azzedine H, Clark K, Corrochano S, Wells S, Elting MW, Weiss MM, Burn S, Myers A, Landsverk M, Crotwell PL, Waisfisz Q, Wolf NI, Nolan PM, Padilla-Lopez S, Houlden H, Lifton R, Mane S, Singh BB, Falk MJ, Mercimek-Mahmutoglu S, Bilguvar K, Salih MA, Acevedo-Arozena A, Kruer MC. Loss-of-Function Mutations in FRRS1L Lead to an Epileptic-Dyskinetic Encephalopathy. American Journal Of Human Genetics 2016, 98: 1249-1255. PMID: 27236917, PMCID: PMC4908178, DOI: 10.1016/j.ajhg.2016.04.008.Peer-Reviewed Original ResearchConceptsGlutamatergic neurotransmissionMovement disordersAbnormalities of glutamateEpileptic-dyskinetic encephalopathyHyperkinetic movement disordersChildhood movement disordersBiallelic pathogenic variantsChronic abnormalitiesNeurological diseasesNeurological disordersMammalian brainPathogenic variantsEpilepsyDisordersFunction mutationsNeurotransmissionAbnormalitiesMonogenic neurological diseasesOuter core proteinFRRS1LEncephalopathyEtiologyChoreoathetosisAMPAExcitatory
2007
Apparently novel genetic syndrome of pachygyria, mental retardation, seizure, and arachnoid cysts
Guzel A, Tatli M, Bilguvar K, DiLuna ML, Bakkaloglu B, Ozturk AK, Bayrakli F, Gunel M. Apparently novel genetic syndrome of pachygyria, mental retardation, seizure, and arachnoid cysts. American Journal Of Medical Genetics Part A 2007, 143A: 672-677. PMID: 17343267, DOI: 10.1002/ajmg.a.31640.Peer-Reviewed Original ResearchMeSH KeywordsArachnoid CystsEpilepsyFemaleHumansIntellectual DisabilityMalePedigreeSyndromeTelencephalonConceptsArachnoid cystCerebral anomaliesMental retardationAutosomal recessive inheritanceSeizure disorderNovel genetic syndromeCentrum semiovaleLack of mutationsPerivascular spacesWhite matterNew syndromeGenetic syndromesLissencephaly geneSyndromeCystsRecessive inheritancePachygyriaSeizuresConsanguineous familyRetardationNew phenotypesPatients