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RESEARCH PRODUCT

Impact of the Usher syndrome on olfaction

Kerstin Nagel-wolfrumUwe WolfrumFabian JansenMarta MikoszKirsten A. WunderlichHanns HattStefan KurtenbachBenjamin KalbeSabrina OsterlohPaul Scholz

subject

0301 basic medicineUsher syndromeCell Cycle ProteinsMice TransgenicNerve Tissue ProteinsOlfactionMyosinsBiologyCell LineMice03 medical and health sciencesOlfactory MucosaGene expressionRetinitis pigmentosaotorhinolaryngologic diseasesGeneticsmedicineAnimalsHumansCiliaMolecular BiologyGeneGenetics (clinical)GeneticsExtracellular Matrix ProteinsMessenger RNAGene Expression ProfilingEpithelial CellsGeneral MedicineCadherinsmedicine.diseaseeye diseasesSmellCytoskeletal ProteinsDisease Models Animal030104 developmental biologymedicine.anatomical_structureGene Expression RegulationMyosin VIIaMutationOdorantsSignal transductionCarrier ProteinsUsher SyndromesOlfactory epitheliumSignal Transduction

description

Usher syndrome is a genetically and clinically heterogeneous disease in humans, characterized by sensorineural hearing loss, retinitis pigmentosa and vestibular dysfunction. This disease is caused by mutations in genes encoding proteins that form complex networks in different cellular compartments. Currently, it remains unclear whether the Usher proteins also form networks within the olfactory epithelium (OE). Here, we describe Usher gene expression at the mRNA and protein level in the OE of mice and showed interactions between these proteins and olfactory signaling proteins. Additionally, we analyzed the odor sensitivity of different Usher syndrome mouse models using electro-olfactogram recordings and monitored significant changes in the odor detection capabilities in mice expressing mutant Usher proteins. Furthermore, we observed changes in the expression of signaling proteins that might compensate for the Usher protein deficiency. In summary, this study provides novel insights into the presence and purpose of the Usher proteins in olfactory signal transduction.

https://doi.org/10.1093/hmg/ddv490