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Series GSE49704 Query DataSets for GSE49704
Status Public on May 02, 2014
Title Peroxidasin is essential for eye development
Organism Mus musculus
Experiment type Expression profiling by array
Summary Mutations in Peroxidasin (PXDN) cause severe inherited eye disorders in humans, such as congenital cataract, corneal opacity, and developmental glaucoma. The role of peroxidasin during eye development is poorly understood. Here we describe the first Pxdn mouse mutant which was induced by ENU (N-ethyl-N-nitrosourea) and led to a recessive phenotype. Sequence analysis of cDNA revealed a T3816A mutation resulting in a premature stop codon (Cys1272X) in the peroxidase domain. This mutation causes severe anterior segment dysgenesis and microphthalmia resembling the manifestations in patients with PXDN mutations. The proliferation and differentiation of the lens is disrupted in association with aberrant expression of transcription factor genes (Pax6 and Foxe3) in mutant eyes. Additionally, Pxdn is involved in the consolidation of the basement membrane and lens epithelium adhesion in the ocular lens. Lens material including γ-crystallin is extruded into the anterior and posterior chamber due to local loss of structural integrity of the lens capsule as a secondary damage to the anterior segment development leading to congenital ocular inflammation. Moreover, Pxdn mutants exhibited an early-onset glaucoma and progressive retinal dysgenesis. Transcriptome profiling revealed that peroxidasin affects the transcription of developmental and eye diseases-related genes at early eye development. These findings suggest that peroxidasin is necessary for cell proliferation and differentiation and for basement membrane consolidation during eye development. Our studies provide pathogenic mechanisms of PXDN mutation-induced congenital eye diseases.
 
Overall design Total RNA obtained from homozygote embryos E12.5 and wildtype embryos E12.5, each sample include 4 eyes of two embryos
 
Contributor(s) Beckers J, Horsch M
Citation(s) 24895407
Submission date Aug 09, 2013
Last update date Jun 14, 2018
Contact name Martin Irmler
Organization name Helmholtz Zentrum München GmbH
Department Institute of Experimental Genetics
Lab Gene Regulation & Epigenetics
Street address Ingolstaedter Landstrasse 1
City Neuherberg
State/province Bayern
ZIP/Postal code 85764
Country Germany
 
Platforms (1)
GPL6885 Illumina MouseRef-8 v2.0 expression beadchip
Samples (8)
GSM1205170 wt_rep1
GSM1205171 wt_rep2
GSM1205172 wt_rep3
Relations
BioProject PRJNA214791

Download family Format
SOFT formatted family file(s) SOFTHelp
MINiML formatted family file(s) MINiMLHelp
Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE49704_KTA48_non-normalized.txt.gz 1.3 Mb (ftp)(http) TXT
GSE49704_RAW.tar 3.1 Mb (http)(custom) TAR
Raw data are available on Series record
Processed data included within Sample table

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