Pathogenic variants in autism gene KATNAL2 cause hydrocephalus and disrupt neuronal connectivity by impairing ciliary microtubule dynamics
DeSpenza T, Singh A, Allington G, Zhao S, Lee J, Kiziltug E, Prina M, Desmet N, Dang H, Fields J, Nelson-Williams C, Zhang J, Mekbib K, Dennis E, Mehta N, Duy P, Shimelis H, Walsh L, Marlier A, Deniz E, Lake E, Constable R, Hoffman E, Lifton R, Gulledge A, Fiering S, Moreno-De-Luca A, Haider S, Alper S, Jin S, Kahle K, Luikart B. Pathogenic variants in autism gene KATNAL2 cause hydrocephalus and disrupt neuronal connectivity by impairing ciliary microtubule dynamics. Proceedings Of The National Academy Of Sciences Of The United States Of America 2024, 121: e2314702121. PMID: 38916997, PMCID: PMC11228466, DOI: 10.1073/pnas.2314702121.Peer-Reviewed Original ResearchConceptsCongenital hydrocephalusCerebral ventriculomegalyPathogenic variantsPrefrontal pyramidal neuronsGenetic subsets of patientsDevelopment of ventriculomegalyRadial gliaSubsets of patientsHigh-frequency firingNeuronal connectivityHeterozygous germline variantsAutism spectrum disorderVentricular-subventricular zoneMicrotubule dynamicsImpaired spermatogenesisCSF shuntingExcitatory driveMicrotubule-severing ATPasePyramidal neuronsDisrupt neuronal connectivityGermline variantsVentriculomegalyCSF homeostasisDisrupt microtubule dynamicsPlanar cell polarityTRIM71 mutations cause a neurodevelopmental syndrome featuring ventriculomegaly and hydrocephalus
Duy P, Jux B, Zhao S, Mekbib K, Dennis E, Dong W, Nelson-Williams C, Mehta N, Shohfi J, Juusola J, Allington G, Smith H, Marlin S, Belhous K, Monteleone B, Schaefer G, Pisarska M, Vásquez J, Estrada-Veras J, Keren B, Mignot C, Flore L, Palafoll I, Alper S, Lifton R, Haider S, Moreno-De-Luca A, Jin S, Kolanus W, Kahle K. TRIM71 mutations cause a neurodevelopmental syndrome featuring ventriculomegaly and hydrocephalus. Brain 2024, awae175. PMID: 38833623, DOI: 10.1093/brain/awae175.Peer-Reviewed Original ResearchCongenital hydrocephalusCerebral ventriculomegalyStructural brain defectsCohort of patientsAnalysis of human embryosNeurodevelopmental syndromeCorpus callosum dysgenesisWhite matter hypoplasiaSingle-cell transcriptome analysisNeural stem cellsDysmorphic featuresTransmitted variantsPatient cohortVentriculomegalyNHL domainCross-sectional analysisLin-41Subcellular localizationBrain defectsDevelopmental delayHuman embryosProcessing bodiesHomologous positionsPatientsStem cellsBiomechanical instability of the brain–CSF interface in hydrocephalus
Duy P, Mehta N, Kahle K. Biomechanical instability of the brain–CSF interface in hydrocephalus. Brain 2024, 147: 3274-3285. PMID: 38798141, PMCID: PMC11449143, DOI: 10.1093/brain/awae155.Peer-Reviewed Original ResearchBrain-CSF interfaceBrain parenchymaPost-hemorrhagic hydrocephalusLow intracranial pressureAbnormal biomechanical propertiesNormal pressure hydrocephalusPost-infectiousCongenital hydrocephalusImpaired neurodevelopmentCommunicating hydrocephalusCSF homeostasisBiomechanical instabilityHydrocephalusIntracranial pressureAnimal studiesPressure hydrocephalusArachnoid granulationsPrimary derangementBrain surgeryStudy of hydrocephalusAge groupsCSF reabsorptionVentriculomegalyVentricleSecondary enlargement184 PTEN Mutations Portend Cerebral Ventriculomegaly With Autism-Like Deficits in Cortical Circuitry
DeSpenza T, Kizlitug E, Allington G, Barson D, O'Connor D, Robert S, Mekbib K, Singh A, Phan D, Nanda P, Mandino F, Constable T, Lake E, Carter B, Gunel M, Lifton R, Luikart B, Kahle K. 184 PTEN Mutations Portend Cerebral Ventriculomegaly With Autism-Like Deficits in Cortical Circuitry. Neurosurgery 2024, 70: 46-46. DOI: 10.1227/neu.0000000000002809_184.Peer-Reviewed Original ResearchWhole-exome sequencingFetal ventriculomegalyCongenital hydrocephalusExome sequencingChoroid plexus hyperplasiaMutated genesCa2+ imagingMutant mouse modelsPTEN mutantsHuman fetal brainPten mutant miceSporadic CHCerebral ventriculomegalyCSF diversionObstructive hydrocephalusCH patientsCSF secretionPharmacological mTORC1 inhibitionNeurodevelopmental assessmentRadiographic biomarkersFetal brainPTEN mutationsAqueductal stenosisPTEN deletionVentriculomegaly