Search results for " Rubinstein-Taybi syndrome"

showing 3 items of 3 documents

Opposing Effects of CREBBP Mutations Govern the Phenotype of Rubinstein-Taybi Syndrome and Adult SHH Medulloblastoma

2018

Recurrent mutations in chromatin modifiers are specifically prevalent in adolescent or adult patients with Sonic hedgehog-associated medulloblastoma (SHH MB). Here, we report that mutations in the acetyltransferase CREBBP have opposing effects during the development of the cerebellum, the primary site of origin of SHH MB. Our data reveal that loss of Crebbp in cerebellar granule neuron progenitors (GNPs) during embryonic development of mice compromises GNP development, in part by downregulation of brain-derived neurotrophic factor (Bdnf). Interestingly, concomitant cerebellar hypoplasia was also observed in patients with Rubinstein-Taybi syndrome, a congenital disorder caused by germline mu…

0301 basic medicineCerebellumCrebbp protein mousemetabolism [Cerebellar Neoplasms]acetyltransferase; cerebellum; CREBBP; development; Rubinstein-Taybi syndrome; SHH medulloblastomagenetics [Hedgehog Proteins]MiceNeurotrophic factorsmetabolism [CREB-Binding Protein]Mice KnockoutNeuronsRubinstein-Taybi Syndromepathology [Rubinstein-Taybi Syndrome]CREBBPCREB-Binding ProteinPhenotypegenetics [CREB-Binding Protein]3. Good healthpathology [Cerebellar Neoplasms]acetyltransferasePhenotypemedicine.anatomical_structuregenetics [Rubinstein-Taybi Syndrome]Femalemetabolism [Hedgehog Proteins]Signal TransductionSHH medulloblastomaAdultcerebellumBiologyGeneral Biochemistry Genetics and Molecular BiologyCREBBP; Rubinstein-Taybi syndrome; SHH medulloblastoma; acetyltransferase; cerebellum; development.03 medical and health sciencesGermline mutationAcetyltransferasesmetabolism [Medulloblastoma]medicineAnimalsHumansgenetics [Cerebellar Neoplasms]Hedgehog Proteinsddc:610Cerebellar NeoplasmsdevelopmentMolecular BiologyMedulloblastomaRubinstein–Taybi syndromegenetics [Medulloblastoma]metabolism [Rubinstein-Taybi Syndrome]pathology [Medulloblastoma]Cell Biologymedicine.disease030104 developmental biologyMutationphysiology [CREB-Binding Protein]Cancer researchSHH protein humanCerebellar hypoplasia (non-human)metabolism [Acetyltransferases]CREBBP protein humanMedulloblastomaDevelopmental BiologyCongenital disorderDevelopmental Cell
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Characterization of 14 novel deletions underlying Rubinstein–Taybi syndrome: an update of the CREBBP deletion repertoire

2015

Rubinstein–Taybi syndrome (RSTS) is a rare, clinically heterogeneous disorder characterized by cognitive impairment and several multiple congenital anomalies. The syndrome is caused by almost private point mutations in the CREBBP (~55 % of cases) and EP300 (~8 %) genes. The CREBBP mutational spectrum is variegated and characterized by point mutations (30–50 %) and deletions (~10 %). The latter are diverse in size and genomic position and remove either the whole CREBBP gene and its flanking regions or only an intragenic portion. Here, we report 14 novel CREBBP deletions ranging from single exons to the whole gene and flanking regions which were identified by applying complementary cytomolecu…

AdultMaleAdolescentContiguous gene syndromeCohort StudiesExonGeneticmedicineGeneticsHumansPoint MutationCREB-binding proteinEP300ChildPreschoolGenetics (clinical)Sequence DeletionGeneticsRubinstein-Taybi Syndromebiologymedicine.diagnostic_testRubinstein–Taybi syndromeBase SequencePoint mutationMedicine (all)Infant NewbornInfantMiddle Agedmedicine.diseaseNewbornCREB-Binding ProteinHuman geneticsAdolescent; Adult; CREB-Binding Protein; Child; Child Preschool; Cohort Studies; Female; Humans; Infant; Infant Newborn; Male; Middle Aged; Rubinstein-Taybi Syndrome; Base Sequence; Point Mutation; Sequence Deletion; Genetics (clinical); Genetics; Medicine (all)Child Preschoolbiology.proteinFemaleCohort StudieAdolescent; Adult; CREB-Binding Protein; Child; Child Preschool; Cohort Studies; Female; Humans; Infant; Infant Newborn; Male; Middle Aged; Rubinstein-Taybi Syndrome; Base Sequence; Point Mutation; Sequence Deletion; Medicine (all); Genetics; Genetics (clinical)Fluorescence in situ hybridizationHuman
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Multiplex ligation-dependent probe amplification detection of an unknown large deletion of the CREB-binding protein gene in a patient with Rubinstein…

2013

Rubinstein-Taybi syndrome is a rare autosomal dominant congenital disorder characterized by postnatal growth retardation, psychomotor developmental delay, skeletal anomalies, peculiar facial morphology, and tumorigenesis. Mutations in the gene encoding the cAMP response element-binding protein (CREB, also known as CREBBP or CBP) on chromosome 16p13.3 have been identified. In addition, some patients with low intelligence quotients and autistic features bear large deletions. Based on these observations, we used multiplex ligation-dependent probe amplification to search for large deletions affecting the CREBBP gene in a Rubinstein-Taybi syndrome patient. We identified a novel heterozygote dele…

HeterozygoteCREBExonSettore BIO/13 - Biologia ApplicataGeneticsmedicineHumansMultiplexMultiplex ligation-dependent probe amplificationGenetic TestingCREB-binding proteinMolecular BiologyGeneGeneticsRubinstein-Taybi SyndromeRubinstein–Taybi syndromebiologyMultiplex ligation-dependent probe amplification Comparative multiplex dosage analysis CREB-binding protein Rubinstein-Taybi syndromeHeterozygote advantageGeneral Medicinemedicine.diseaseMolecular biologyCREB-Binding ProteinChild Preschoolbiology.proteinFemaleMultiplex Polymerase Chain ReactionGene Deletion
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