0000000000125274

AUTHOR

Gundela Holmdahl

showing 3 related works from this author

SLC20A1 Is Involved in Urinary Tract and Urorectal Development

2020

Previous studies in developing Xenopus and zebrafish reported that the phosphate transporter slc20a1a is expressed in pronephric kidneys. The recent identification of SLC20A1 as a monoallelic candidate gene for cloacal exstrophy further suggests its involvement in the urinary tract and urorectal development. However, little is known of the functional role of SLC20A1 in urinary tract development. Here, we investigated this using morpholino oligonucleotide knockdown of the zebrafish ortholog slc20a1a. This caused kidney cysts and malformations of the cloaca. Moreover, in morphants we demonstrated dysfunctional voiding and hindgut opening defects mimicking imperforate anus in human cloacal exs…

0301 basic medicineCandidate genePathologyMorpholinoPediatricsEmbryonalentwicklungBlasenekstrophieBladder exstrophyZebrabärbling0302 clinical medicinebladder exstrophy-epispadias complex; CAKUT; cloacal malformation; functional genetics; kidney formation; SLC20A1; urinary tract development; zebrafish developmentbladder exstrophy-epispadias complexUrinary tract; Growth and developmentZebrafishlcsh:QH301-705.5ZebrafishNiereOriginal Researchcloacal malformationKidney; EmbryologyPediatrikzebrafish developmentKidney; Growth and developmentReconstructive and regenerative medicine Radboud Institute for Molecular Life Sciences [Radboudumc 10]030220 oncology & carcinogenesisembryonic structuresfunctional geneticsmedicine.symptomSLC20A1medicine.medical_specialtyEpispadiasanimal structuresUrinary systemBiologyKidney cystsCell and Developmental Biology03 medical and health sciencesAll institutes and research themes of the Radboud University Medical Centermedicineddc:610CAKUTNeurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7]Cloaca; Abnormalitieskidney formationCell Biologymedicine.diseaseCloacal exstrophybiology.organism_classificationurinary tract developmentReconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10]Bladder exstrophy030104 developmental biologyCloaca (embryology)lcsh:Biology (General)Developmental BiologyFrontiers in Cell and Developmental Biology
researchProduct

ISL1 is a major susceptibility gene for classic bladder exstrophy and a regulator of urinary tract development

2017

AbstractPreviously genome-wide association methods in patients with classic bladder exstrophy (CBE) found association with ISL1, a master control gene expressed in pericloacal mesenchyme. This study sought to further explore the genetics in a larger set of patients following-up on the most promising genomic regions previously reported. Genotypes of 12 markers obtained from 268 CBE patients of Australian, British, German Italian, Spanish and Swedish origin and 1,354 ethnically matched controls and from 92 CBE case-parent trios from North America were analysed. Only marker rs6874700 at the ISL1 locus showed association (p = 2.22 × 10−08). A meta-analysis of rs6874700 of our previous and prese…

0301 basic medicinemedicine.medical_specialtyPathologyMesenchymeUrinary systemOrganogenesisLIM-Homeodomain ProteinsLocus (genetics)030105 genetics & heredityBiologyPolymorphism Single Nucleotidebladder extrophyArticlePronephrosMesoderm03 medical and health sciencesMiceBEEC bladder extrophy urinary tract development ISL1GenotypemedicineAnimalsHumansProtein IsoformsGenetic Predisposition to DiseaseBEECUrinary TractGeneZebrafishGeneticsMultidisciplinaryBladder ExstrophyGene Expression Regulation DevelopmentalISL1medicine.diseaseEmbryo Mammalianurinary tract developmentBladder exstrophy030104 developmental biologymedicine.anatomical_structureReconstructive and regenerative medicine Radboud Institute for Molecular Life Sciences [Radboudumc 10]LarvaISL1Medical geneticsFemaleTranscription FactorsRare cancers Radboud Institute for Health Sciences [Radboudumc 9]Scientific Reports
researchProduct

Classic bladder exstrophy: Frequent 22q11.21 duplications and definition of a 414 kb phenocritical region

2014

Background: Classic bladder exstrophy (CBE) is the most common form of the bladder exstrophy and epispadias complex. Previously, we and others have identified four patients with a duplication of 22q11.21 among a total of 96 unrelated CBE patients. Methods: Here, we investigated whether this chromosomal aberration was commonly associated with CBE/bladder exstrophy and epispadias complex in an extended case-control sample. Multiplex ligation-dependent probe amplification and microarray-based analysis were used to identify 22q11.21 duplications in 244 unrelated bladder exstrophy and epispadias complex patients (including 217 CBE patients) and 665 healthy controls. Results: New duplications of …

GeneticsEmbryologyCandidate geneMicroarrayBreakpointGeneral MedicineEpispadiasBiologymedicine.diseaseBladder exstrophyPediatrics Perinatology and Child HealthGene duplicationRefSeqmedicineCopy-number variationDevelopmental BiologyBirth Defects Research Part A: Clinical and Molecular Teratology
researchProduct