2023
Role of mitochondrial dysfunction and oxidative stress in sensorineural hearing loss
Tan W, Song L. Role of mitochondrial dysfunction and oxidative stress in sensorineural hearing loss. Hearing Research 2023, 434: 108783. PMID: 37167889, DOI: 10.1016/j.heares.2023.108783.Peer-Reviewed Original ResearchConceptsSensorineural hearing lossOtotoxic drugsMitochondrial dysfunctionReactive oxygen speciesOxidative stressHearing lossDevelopment of SNHLMitochondrial reactive oxygen speciesSpiral ganglion neuronsMitochondrial DNA mutationsPrecise pathophysiological mechanismsSensory hair cellsHair cell mitochondriaConsequent oxidative stressCentral etiological roleMtDNA mutationsPathophysiological mechanismsGanglion neuronsAntioxidant therapyCalcium dysregulationDNA mutationsCell mitochondriaClinical studiesCochlear cellsEtiological role
2017
Novel Role of the Mitochondrial Protein Fus1 in Protection from Premature Hearing Loss via Regulation of Oxidative Stress and Nutrient and Energy Sensing Pathways in the Inner Ear
Tan WJ, Song L, Graham M, Schettino A, Navaratnam D, Yarbrough WG, Santos-Sacchi J, Ivanova AV. Novel Role of the Mitochondrial Protein Fus1 in Protection from Premature Hearing Loss via Regulation of Oxidative Stress and Nutrient and Energy Sensing Pathways in the Inner Ear. Antioxidants & Redox Signaling 2017, 27: 489-509. PMID: 28135838, PMCID: PMC5564041, DOI: 10.1089/ars.2016.6851.Peer-Reviewed Original ResearchMeSH KeywordsAcetylcysteineAnimalsAntioxidantsDisease Models, AnimalEar, InnerEvoked Potentials, Auditory, Brain StemGene Knockout TechniquesHearing LossHumansMiceMicroscopy, Electron, TransmissionMitochondriaOxidative StressProto-Oncogene Proteins c-aktPTEN PhosphohydrolaseSignal TransductionSpiral GanglionTOR Serine-Threonine KinasesTumor Suppressor ProteinsConceptsAge-related hearing lossAuditory brainstem responseHearing lossKO miceEndocochlear potentialOxidative stressMitochondrial dysfunctionMitochondrial dysfunction/oxidative stressEnergy sensing pathwaysNovel therapeutic strategiesMolecular mechanismsPremature hearing lossCochlear stria vascularisMajor hearing lossChronic mitochondrial dysfunctionMetabolic etiologyWorldwide epidemicBrainstem responseClinical trialsVascular pathologyTherapeutic strategiesPathological alterationsABR parametersAO treatmentStria vascularis
2012
Mitochondrial Stress Engages E2F1 Apoptotic Signaling to Cause Deafness
Raimundo N, Song L, Shutt TE, McKay SE, Cotney J, Guan MX, Gilliland TC, Hohuan D, Santos-Sacchi J, Shadel GS. Mitochondrial Stress Engages E2F1 Apoptotic Signaling to Cause Deafness. Cell 2012, 148: 716-726. PMID: 22341444, PMCID: PMC3285425, DOI: 10.1016/j.cell.2011.12.027.Peer-Reviewed Original ResearchConceptsAltered reactive oxygen speciesReactive oxygen speciesMitochondrial ribosome functionMitochondrial disease modelTranscription factor E2F1Tissue-specific pathologyROS-dependent activationRibosome functionRRNA methylationMitochondrial stressApoptotic signalingTissue specificityMtDNA mutationsMetabolic signalingAMP kinaseMultiple tissuesMitochondrial dysfunctionOxygen speciesE2F1MethylationSignalingG cellsEnvironmental factorsApoptosisMice exhibit