2024
CC2D1A causes ciliopathy, intellectual disability, heterotaxy, renal dysplasia, and abnormal CSF flow
Kim A, Sakin I, Viviano S, Tuncel G, Aguilera S, Goles G, Jeffries L, Ji W, Lakhani S, Kose C, Silan F, Oner S, Kaplan O, Group M, Ergoren M, Mishra-Gorur K, Gunel M, Sag S, Temel S, Deniz E. CC2D1A causes ciliopathy, intellectual disability, heterotaxy, renal dysplasia, and abnormal CSF flow. Life Science Alliance 2024, 7: e202402708. PMID: 39168639, PMCID: PMC11339347, DOI: 10.26508/lsa.202402708.Peer-Reviewed Original ResearchConceptsDevelopmental disabilitiesIntellectual disabilityPatient-derived fibroblastsMidbrain regionsBrain developmentDefective ciliogenesisCSF circulationDisabilityCSF flowAbnormal CSF flowNervous system developmentMutant tadpolesCiliated tissuesMultiple model systemsVariant functionPronephric ductUnrelated familiesCC2D1AExpression patternsCiliogenesisRenal dysplasiaLeft-right organizerFunctional analysisDisease mechanismsBrainUnraveling the genetic tapestry of pediatric sarcomeric cardiomyopathies and masquerading phenocopies in Jordan
Azab B, Aburizeg D, Shaaban S, Ji W, Mustafa L, Isbeih N, Al-Akily A, Mohammad H, Jeffries L, Khokha M, Lakhani S, Al-Ammouri I. Unraveling the genetic tapestry of pediatric sarcomeric cardiomyopathies and masquerading phenocopies in Jordan. Scientific Reports 2024, 14: 15141. PMID: 38956129, PMCID: PMC11219879, DOI: 10.1038/s41598-024-64921-9.Peer-Reviewed Original ResearchConceptsExome sequencingSarcomere-related genesMitochondrial-related diseasesAt-risk family membersGenetic architectureGenetic landscapePathogenic variantsGene panelPediatric cardiomyopathyMolecular underpinningsGenetic testingPhenocopiesSarcomeric cardiomyopathiesGenesSequenceStorage disorderFamily membersAt-riskVariantsEarly interventionExomeFamilyGlycogen storage disorderHypertrophic cardiomyopathyCardiomyopathy
2022
TBX5 variant with the novel phenotype of mixed-type total anomalous pulmonary venous return in Holt-Oram Syndrome and variable intrafamilial heart defects
Azab B, Aburizeg D, Ji W, Jeffries L, Isbeih NJ, Al-Akily AS, Mohammad H, Abu Osba Y, Shahin MA, Dardas Z, Hatmal MM, Al-Ammouri I, Lakhani S. TBX5 variant with the novel phenotype of mixed-type total anomalous pulmonary venous return in Holt-Oram Syndrome and variable intrafamilial heart defects. Molecular Medicine Reports 2022, 25: 210. PMID: 35514310, PMCID: PMC9133962, DOI: 10.3892/mmr.2022.12726.Peer-Reviewed Original ResearchConceptsHolt-Oram syndromeMolecular etiologyT-box domainWild-type proteinT-box transcription factorGenetic investigationsTrio-based whole-exome sequencingNonsense variantTranscription factorsIntrafamilial levelTBX5 proteinNovel phenotypesProtein's abilityFirst genetic investigationMutant dimersNon-syndromic presentationsProtein modelingWhole-exome sequencingComplete phenotypingSubsequent genetic investigationsTbx5Novel associationsPowerful approachWide phenotypic spectrumNon-covalent bonds
2021
Functional testing for variant prioritization in a family with long QT syndrome
Najari Beidokhti M, Bertalovitz AC, Ji W, McCormack J, Jeffries L, Sempou E, Khokha MK, McDonald TV, Lakhani SA. Functional testing for variant prioritization in a family with long QT syndrome. Molecular Genetics And Genomics 2021, 296: 823-836. PMID: 33876311, DOI: 10.1007/s00438-021-01780-3.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SubstitutionAMP-Activated Protein KinasesDNA Mutational AnalysisElectrocardiographyERG1 Potassium ChannelExome SequencingFamilyFemaleGenetic TestingHeart Function TestsHEK293 CellsHumansKCNQ1 Potassium ChannelLong QT SyndromeMiddle AgedMutationPedigreePhenotypePolymerase Chain ReactionPolymorphism, Single NucleotideProtein Serine-Threonine KinasesConceptsWhole-exome sequencingFunctional characterizationSilico analysisPrecise genetic etiologyHeterologous expression systemNext-generation sequencing platformsNovel genetic variantsDeleterious phenotypesFunction phenotypesExpression systemSequencing platformsSecond individualHeritable diseaseVariant prioritizationGenetic variantsLong QT syndromeExome sequencingGenetic etiologyGenetic settingClinical genetics settingPhenotypeFamilyGene panelFamily membersVariantsExpansion of NEUROD2 phenotypes to include developmental delay without seizures
Mis EK, Sega AG, Signer RH, Cartwright T, Ji W, Martinez‐Agosto J, Nelson SF, Palmer CGS, Lee H, Mitzelfelt T, Konstantino M, Network U, Jeffries L, Khokha MK, Marco E, Martin MG, Lakhani SA. Expansion of NEUROD2 phenotypes to include developmental delay without seizures. American Journal Of Medical Genetics Part A 2021, 185: 1076-1080. PMID: 33438828, PMCID: PMC8212414, DOI: 10.1002/ajmg.a.62064.Peer-Reviewed Original ResearchConceptsDevelopmental delayEarly-onset seizuresDe novo heterozygous variantsNovo heterozygous variantsDifferentiation factor 2Xenopus laevis tadpolesHeterozygous variantsSeizuresNeuronal differentiationParental studiesFunctional testingMissense variantsPatient variantsFunctional evidenceFactor 2Vivo assaysLaevis tadpolesVariant pathogenicityFunction effectsAdolescentsVariants
2020
The latest FADS: Functional analysis of GLDN patient variants and classification of GLDN‐associated AMC as a type of viable fetal akinesia deformation sequence
Mis EK, Al‐Ali S, Ji W, Spencer‐Manzon M, Konstantino M, Khokha MK, Jeffries L, Lakhani SA. The latest FADS: Functional analysis of GLDN patient variants and classification of GLDN‐associated AMC as a type of viable fetal akinesia deformation sequence. American Journal Of Medical Genetics Part A 2020, 182: 2291-2296. PMID: 32812332, DOI: 10.1002/ajmg.a.61783.Peer-Reviewed Original ResearchConceptsFetal akinesia deformation sequenceArthrogryposis multiplex congenitaCohort of patientsScope of illnessPulmonary hypoplasiaAdditional patientsClinical featuresNeonatal supportNervous system developmentMultiplex congenitaCongenital contracturesPatientsHeterogenous conditionRecessive variantsPatient variantsFunctional evidenceCohortNovel variantsContractureFunctional dataSyndromeHypoplasiaIllnessVariantsFindingsDYNC1H1‐related disorders: A description of four new unrelated patients and a comprehensive review of previously reported variants
Amabile S, Jeffries L, McGrath JM, Ji W, Spencer‐Manzon M, Zhang H, Lakhani SA. DYNC1H1‐related disorders: A description of four new unrelated patients and a comprehensive review of previously reported variants. American Journal Of Medical Genetics Part A 2020, 182: 2049-2057. PMID: 32656949, DOI: 10.1002/ajmg.a.61729.Peer-Reviewed Original ResearchConceptsSpinal muscular atrophyIntellectual disabilityUnrelated patientsSingle-center experienceNew unrelated patientsCenter experienceDYNC1H1 geneCNS disordersCombined disordersCortical developmentDisease-causing variantsVariable syndromeNeuromuscular diseaseNeuromuscular phenotypePatientsMuscular atrophyHeterozygous variantsDYNC1H1Medical literatureCharcot-MarieDisordersType 20Novel variantsPhenotypeReportDLG5 variants are associated with multiple congenital anomalies including ciliopathy phenotypes
Marquez J, Mann N, Arana K, Deniz E, Ji W, Konstantino M, Mis EK, Deshpande C, Jeffries L, McGlynn J, Hugo H, Widmeier E, Konrad M, Tasic V, Morotti R, Baptista J, Ellard S, Lakhani SA, Hildebrandt F, Khokha MK. DLG5 variants are associated with multiple congenital anomalies including ciliopathy phenotypes. Journal Of Medical Genetics 2020, 58: 453-464. PMID: 32631816, PMCID: PMC7785698, DOI: 10.1136/jmedgenet-2019-106805.Peer-Reviewed Original ResearchConceptsLoss of ciliaPatient tissuesPatient variantsCongenital heart diseaseMultiple organ systemsMultiple congenital anomaliesDLG5 variantsVariety of pathologiesNephrotic syndromeHeart diseaseCongenital anomaliesRespiratory tractKidney tissueOrgan systemsCystic kidneysPatient phenotypesKidneyDiseaseLimb abnormalitiesUnrelated familiesRescue experimentsCraniofacial malformationsCilia dysfunctionTissue-specific manifestationsTissue
2019
Identification of a novel MYOC variant in a Hispanic family with early-onset primary open-angle glaucoma with elevated intraocular pressure
Criscione J, Ji W, Jeffries L, McGrath JM, Soloway S, Pusztai L, Lakhani S. Identification of a novel MYOC variant in a Hispanic family with early-onset primary open-angle glaucoma with elevated intraocular pressure. Molecular Case Studies 2019, 5: a004374. PMID: 31653660, PMCID: PMC6913140, DOI: 10.1101/mcs.a004374.Peer-Reviewed Original ResearchConceptsPrimary open-angle glaucomaEarly-onset primary open-angle glaucomaOpen-angle glaucomaGenetic testingElevated intraocular pressureJuvenile-onset primary open-angle glaucomaFurther genetic testingAutosomal dominant patternFemale patientsIntraocular pressureIrreversible blindnessFamily historyEye disordersMYOC variantsMyocilin geneGlaucomaPOAG phenotypeHispanic familiesOlfactomedin domainPrevious findingsDominant patternVariant segregatesMost casesPatientsEtiology
2018
De novo pathogenic variants in neuronal differentiation factor 2 (NEUROD2) cause a form of early infantile epileptic encephalopathy
Sega AG, Mis EK, Lindstrom K, Mercimek-Andrews S, Ji W, Cho MT, Juusola J, Konstantino M, Jeffries L, Khokha MK, Lakhani SA. De novo pathogenic variants in neuronal differentiation factor 2 (NEUROD2) cause a form of early infantile epileptic encephalopathy. Journal Of Medical Genetics 2018, 56: 113. PMID: 30323019, DOI: 10.1136/jmedgenet-2018-105322.Peer-Reviewed Original ResearchConceptsEarly infantile epileptic encephalopathyInfantile epileptic encephalopathyEpileptic encephalopathyPatient variantsDe novo pathogenic variantsNovel de novo variantNovo pathogenic variantsEarly-onset refractory seizuresDifferentiation factor 2Whole-exome sequencingNeuronal differentiation factorRefractory seizuresSignificant developmental delaySpontaneous seizuresUnderlying etiologyEctopic neuronsDe novo variantsPatient's conditionEncephalopathyPathogenic variantsSevere disordersDevelopmental delayUnrelated childrenExome sequencingGene mutationsTwo siblings with a novel nonsense variant provide further delineation of the spectrum of recessive KLHL7 diseases
Jeffries L, Olivieri JE, Ji W, Spencer-Manzon M, Bale A, Konstantino M, Lakhani SA. Two siblings with a novel nonsense variant provide further delineation of the spectrum of recessive KLHL7 diseases. European Journal Of Medical Genetics 2018, 62: 103551. PMID: 30300710, DOI: 10.1016/j.ejmg.2018.10.003.Peer-Reviewed Original ResearchConceptsKLHL7 mutationsCrisponi syndromeSyndrome type 1Novel nonsense variantBohring-Opitz syndromeNovel multisystem diseaseNovel homozygous nonsense mutationMultiple dysmorphic featuresClinical featuresClinical findingsMultisystem diseaseLike presentationHomozygous nonsense mutationType 1Dysmorphic featuresDevelopmental delaySyndromeFurther delineationNonsense variantClinical traitsPatientsMember 7DiseaseDisease-associated variantsSiblings
2017
A novel SAMD9 mutation causing MIRAGE syndrome: An expansion and review of phenotype, dysmorphology, and natural history
Jeffries L, Shima H, Ji W, Panisello‐Manterola D, McGrath J, Bird LM, Konstantino M, Narumi S, Lakhani S. A novel SAMD9 mutation causing MIRAGE syndrome: An expansion and review of phenotype, dysmorphology, and natural history. American Journal Of Medical Genetics Part A 2017, 176: 415-420. PMID: 29266745, DOI: 10.1002/ajmg.a.38557.Peer-Reviewed Original ResearchConceptsConstellation of symptomsAdditional clinical featuresNovel de novo variantReview of phenotypesSAMD9 mutationsAdrenal insufficiencyMultidisciplinary managementAdditional patientsClinical featuresPatient's courseSpecialist careMIRAGE syndromeDe novo variantsEarly diagnosisHigh riskPatientsTreatment planGermline gainNatural historyFunction variantsGenital phenotypeNovo variantsRestriction of growthSyndromeAmino acid variants