Search results for "CHD7"

showing 3 items of 3 documents

Somatic copy number alterations are associated with EGFR amplification and shortened survival in patients with primary glioblastoma.

2019

Glioblastoma (GBM) is the most common malignant primary tumor of the central nervous system. With no effective therapy, the prognosis for patients is terrible poor. It is highly heterogeneous and EGFR amplification is its most frequent molecular alteration. In this light, we aimed to examine the genetic heterogeneity of GBM and to correlate it with the clinical characteristics of the patients. For that purpose, we analyzed the status of EGFR and the somatic copy number alterations (CNAs) of a set of tumor suppressor genes and oncogenes. Thus, we found GBMs with high level of EGFR amplification, low level and with no EGFR amplification. Highly amplified tumors showed histological features of…

0301 basic medicineMaleCancer ResearchBiopsyL-amp GB EGFR-low amplified glioblastomamedicine.disease_causewt wildtypeMYBPC3 myosin-binding protein C0302 clinical medicineHIC1 hypermethylated in cancer 1Gene duplicationIn Situ Hybridization FluorescenceIDH2 isocitrate dehydrogenase 2MutationRB-pat RB signaling pathwayEGFRvIII epidermal growth factor receptor variant number IIIPAH phenylalanine hydroxylaseGBM glioblastoma IDH-wildtype (glioblastoma multiforme primary glioblastoma).ANOVA ANalysis Of VArianceN-amp GB EGFR-no amplified glioblastomaMiddle AgedCDKN2A cyclin-dependent kinase inhibitor 2Alcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogensPrognosisPrimary tumorImmunohistochemistryH-amp GB EGFR-high amplified glioblastomaErbB ReceptorsTKR-pat tyrosine-kinase receptors signaling pathway030220 oncology & carcinogenesisDisease ProgressionCDK6 cyclin-dependent kinase 6CDH1 Cadherin 1FemaleCREM cAMP response element modulatorIHC immunohistochemistryAdultOriginal articleDNA Copy Number VariationsCDKN1B cyclin-dependent kinase inhibitor 1BBiologyRARB retinoic acid receptor betaCNS central nervous systemlcsh:RC254-282IDH1 isocitrate dehydrogenase 1BCL2 B-cell cll/ lymphoma 2CNAs copy number algerationsWHO World Health Organization03 medical and health sciencesYoung Adultp53-pat p53 signaling pathwaymedicineBiomarkers TumorTMA tissue microarrayPTENHumansProtein kinase BPI3K/AKT/mTOR pathwaySurvival analysisAgedGenetic heterogeneityGene AmplificationGFAP glial fibrillary acidic proteinMLPA multiplex ligation-dependent probe amplificationmedicine.diseaseFISH fluorescence in situ hibridizationSurvival AnalysisCDKN2B cyclin-dependent kinase inhibitor 2BPTEN phosphatase and tensin homologEGFR epidermal growth factor receptorCNV-load load of copy number variations030104 developmental biologyMutationPARK2 parkinCancer researchbiology.proteinTCGA The Cancer Genome AtlasLARGE1 acetylglucosaminyltransferase-like protein 1GlioblastomaCHD7 Chromodomain Helicase DNA Binding Protein 7DAPI 4′6-diamidino-2-phenylindoleNeoplasia (New York, N.Y.)
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Functional analyses of a novel splice variant in the CHD7 gene, found by next generation sequencing, Confirm Its pathogenicity in a Spanish patient a…

2018

Mutations in CHD7 have been shown to be a major cause of CHARGE syndrome, which presents many symptoms and features common to other syndromes making its diagnosis difficult. Next generation sequencing (NGS) of a panel of intellectual disability related genes was performed in an adult patient without molecular diagnosis. A splice donor variant in CHD7 (c.5665 + 1G > T) was identified. To study its potential pathogenicity, exons and flanking intronic sequences were amplified from patient DNA and cloned into the pSAD® splicing vector. HeLa cells were transfected with this construct and a wild-type minigene and functional analysis were performed. The construct with the c.5665 + 1G > T variant p…

0301 basic medicinelcsh:QH426-470BiologyDNA sequencingCHD703 medical and health sciencesExonalternative splicing0302 clinical medicineNext generation sequencingGeneticsspliceminigeneGeneGenetics (clinical)Geneticsnext generation sequencingCHARGE syndromeAlternative splicingIntron3. Good healthlcsh:Genetics030104 developmental biology030220 oncology & carcinogenesisRNA splicingMolecular MedicineMinigeneAlternative splicing
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Sema3a plays a role in the pathogenesis of CHARGE syndrome

2018

CHARGE syndrome is an autosomal dominant malformation disorder caused by heterozygous loss of function mutations in the chromatin remodeler CHD7. Chd7 regulates the expression of Sema3a, which also contributes to the pathogenesis of Kallmann syndrome, a heterogeneous condition with the typical features hypogonadotropic hypogonadism and an impaired sense of smell. Both features are common in CHARGE syndrome suggesting that SEMA3A may provide a genetic link between these syndromes. Indeed, we find evidence that SEMA3A plays a role in the pathogenesis of CHARGE syndrome. First, Chd7 is enriched at the Sema3a promotor in neural crest cells and loss of function of Chd7 inhibits Sema3a expression…

0301 basic medicineEmbryo NonmammalianKallmann syndromePHENOTYPIC SPECTRUMmedicine.disease_causeSeverity of Illness IndexEpigenesis GeneticPathogenesisAXON GUIDANCECHD7CHARGE syndromeXenopus laevis0302 clinical medicineHYPOGONADOTROPIC HYPOGONADISMPromoter Regions GeneticGenetics (clinical)GeneticsMutationGeneral MedicinePhenotypeDNA-Binding ProteinsNEURAL CREST CELLSNeural CrestHomeobox Protein Nkx-2.5MIGRATIONBiology03 medical and health sciencesHypogonadotropic hypogonadismKALLMANN-SYNDROMEGeneticsmedicineAnimalsHumansEpigeneticsSHORT STATUREMolecular BiologyLoss functionMUTATIONSGenetic Complementation TestDNA HelicasesSemaphorin-3AKallmann Syndromemedicine.diseaseDisease Models Animal030104 developmental biologyHEK293 CellsXENOPUS-EMBRYOSMutationCHARGE Syndrome030217 neurology & neurosurgery
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