Basic Mechanisms on Hearing Loss of Cochlear Origin
耳蜗源性听力损失的基本机制
基本信息
- 批准号:10554258
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2012
- 资助国家:美国
- 起止时间:2012-10-01 至 2024-12-31
- 项目状态:已结题
- 来源:
- 关键词:ATP ReceptorsAddressAffectAgingAminoglycosidesAntibioticsAuditory Brainstem ResponsesBlast InjuriesCell SurvivalCell physiologyCellsCellular biologyChronicClinicalCochleaCochlear Hearing LossCompensationComplexCytoprotectionDataDevelopmentDiseaseEarEnvironmentEtiologyEvaluationExposure toFundingFutureGene Expression RegulationGeneticGoalsHair CellsHealthHearingHearing AidsHearing TestsHearing problemHumanIn VitroIndividualInterventionIsotopesLibrariesMediatingMethodologyMethodsMicroprocessorMiddle EastMilitary PersonnelMorphologyNatureNerve EndingsNoiseNoise-Induced Hearing LossOrgan of CortiOutcomeOuter Hair CellsPathologyPathway interactionsPeer ReviewPerilymphPharmacotherapyPreventionPrevention therapyProbabilityProcessProgress ReportsProteinsProteomicsPublicationsQuality of lifeRehabilitation therapyResearchResearch DesignResolutionRiskSensorineural Hearing LossSignal TransductionSourceStimulusTemporary Threshold ShiftTestingTherapeutic InterventionTinnitusTissuesVeteransafferent nervecell injurycombat zonecostdisabilitydisability paymentgene therapyhair cell regenerationhearing impairmenthearing loss riskhigh riskimprovedin vivoin vivo Modelknockout animalknockout genemilitary servicemouse modelnoise exposurenovelosmotic minipumpotoacoustic emissionototoxicitypharmacologicpreventprevent hearing losspsychologicround windowscreeningsoundtargeted treatment
项目摘要
Objectives: Sensorineural hearing loss (SNHL) is strongly associated with many aspects of military
service including blast injury. The overall objectives of this proposal are to improve the prevention
and treatment of SNHL in Veterans.
Research Design: We previously used in vitro screening to identify novel compounds that can protect
hair cells (HCs) from ototoxic damage. We tested them in vivo against noise-induced hearing loss
(NIHL) and found partial protection. We also used high-resolution proteomics to identify additional
processes involved in NIHL. Overall, our results suggest that many cellular processes contribute to HC
damage. In this application we propose to screen compound combinations targeting diverse HC
damage and survival processes, to identify the most effective combinations. This will allow us to
identify optimal strategies for further development as pharmacological interventions in humans, using
compound combinations and/or multi-acting compounds.
Methodology: Studies will be performed in vitro using aminoglycoside damage or in vivo using noise
damage to the cochlea. For in vivo studies, intracochlear or intratympanic delivery of HC protectants
will begin immediately after exposure. We will use a well-established mouse model of noise damage,
chronic delivery of compounds to cochlear perilymph or the round window with osmotic minipumps,
serial auditory brainstem response (ABR) and distortion product otoacoustic emission (DPOAE)
audiometry, and morphological evaluation of cochlear HCs and afferent nerve endings.
Progress over the past period of funding: During the past period of funding, using the mammalian
organ of Corti, the only tissue containing the damage-sensitive mammalian outer HCs, we screened
several compound libraries. We identified a broad range of compounds targeting different cellular
processes, that were effective in protecting HCs. We then transferred selected compounds to an in
vivo model of noise-induced hearing loss (NIHL), where we also noted protection. We also
completed the first-ever high-resolution proteomics study of NIHL, which identified many proteins
and processes not previously known to be involved in noise damage, and which are potential targets
for pharmacotherapy. We also performed the first high-resolution proteomic study of isolated HCs.
In addition, we completed studies of gene regulation relevant to HC regeneration, and found that
gene therapy with espin1 dramatically enhanced stereocilia formation on regenerating HCs. We
discovered a novel protective HC pathway mediated by ATP receptors that reduce activity in HCs at
high stimulus levels, protecting them from noise damage. Our studies resulted in 18 peer-reviewed
publications to date.
Clinical Relationship: The prevention and treatment of SNHL is of great importance to Veterans
and the VA. The effects of SNHL on Veterans’ quality of life are substantial. SNHL and tinnitus also
account for more disability compensation in the VA than any other disorder, and rehabilitation costs
are high. The proposed research is targeted at developing new and improved therapies for
prevention and treatment of this important health problem.
目的:感官听力损失(SNHL)与军事的许多方面密切相关
服务包括爆炸损伤。该提案的总体目标是改善预防
和在退伍军人中对SNHL的处理。
研究设计:我们以前在体外筛查中识别可以保护的新型化合物
耳毒性损伤受到毛细胞(HC)。我们在体内测试了它们针对噪声引起的听力损失的测试
(NIHL)并找到了部分保护。我们还使用高分辨率蛋白质组学来识别其他
NIHL涉及的过程。总体而言,我们的结果表明许多细胞过程有助于HC
损害。在此应用中,我们建议筛选针对潜水员HC的化合物组合
损坏和生存过程,以确定最有效的组合。这将使我们能够
确定进一步发展的最佳策略作为人类的药物干预措施
化合物组合和/或多作用化合物。
方法:研究将在体外使用氨基糖苷损伤或在体内使用噪声进行研究
对耳蜗的损害。对于体内研究,HC保护剂的核内或肌内递送
曝光后将立即开始。我们将使用完善的鼠标损坏鼠标模型,
长期将化合物递送到人工耳蜗或带有渗透微型机的圆形窗户,
串行听觉脑干响应(ABR)和失真产物耳声发射(DPOAE)
人工耳蜗HC和传入神经末尾的听力学和形态学评估。
在过去的资金期间进展:在过去的资金期间,使用哺乳动物
Corti的器官,是唯一包含对损伤敏感哺乳动物外部HCS的组织,我们筛选了
几个复合库。我们确定了针对不同细胞的广泛化合物
有效保护HCS的过程。然后,我们将选定的化合物转移到
噪声引起的听力损失(NIHL)的体内模型,我们还指出了保护。我们也是
完成了NIHL的第一个高分辨率蛋白质组学研究,该研究鉴定了许多蛋白质
以及以前未知参与噪声损害的过程,它们是潜在目标
用于药物治疗。我们还对分离的HC进行了首次高分辨率蛋白质组学研究。
此外,我们完成了与HC再生相关的基因调节的研究,发现
ESPIN1的基因疗法在再生HCS上显着增强了立体膜形成。我们
发现了一种由ATP接收器介导的新型受保护的HC途径,该途径降低了HCS的活性
高刺激水平,保护它们免受噪声伤害。我们的研究导致了18个同行评审
迄今为止的出版物。
临床关系:SNHL的预防和治疗对退伍军人非常重要
和VA。 SNHL对退伍军人生活质量的影响很大。 snhl和耳鸣
在VA中,造成比任何其他疾病的残疾补偿要多,康复费用
很高。拟议的研究旨在开发新的和改进的疗法
预防和治疗这一重要健康问题。
项目成果
期刊论文数量(200)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Simvastatin protects auditory hair cells from gentamicin-induced toxicity and activates Akt signaling in vitro.
- DOI:10.1186/1471-2202-12-114
- 发表时间:2011-11-14
- 期刊:
- 影响因子:2.4
- 作者:Brand Y;Setz C;Levano S;Listyo A;Chavez E;Pak K;Sung M;Radojevic V;Ryan AF;Bodmer D
- 通讯作者:Bodmer D
The Promoter and Multiple Enhancers of the pou4f3 Gene Regulate Expression in Inner Ear Hair Cells.
- DOI:10.1007/s12035-016-0060-7
- 发表时间:2017-09
- 期刊:
- 影响因子:5.1
- 作者:Masuda M;Li Y;Pak K;Chavez E;Mullen L;Ryan AF
- 通讯作者:Ryan AF
Genetic architecture distinguishes tinnitus from hearing loss.
- DOI:10.1038/s41467-024-44842-x
- 发表时间:2024-01-19
- 期刊:
- 影响因子:16.6
- 作者:Clifford, Royce E.;Maihofer, Adam X.;Chatzinakos, Chris;Coleman, Jonathan R. I.;Daskalakis, Nikolaos P.;Gasperi, Marianna;Hogan, Kelleigh;Mikita, Elizabeth A.;Stein, Murray B.;Tcheandjieu, Catherine;Telese, Francesca;Zuo, Yanning;Ryan, Allen F.;Nievergelt, Caroline M.
- 通讯作者:Nievergelt, Caroline M.
Regional differences of brain glucose metabolic compensation after unilateral labyrinthectomy in rats: a [14C]2-deoxyglucose study.
大鼠单侧迷路切除术后脑葡萄糖代谢代偿的区域差异:[14C]2-脱氧葡萄糖研究。
- DOI:10.1016/0006-8993(86)90316-1
- 发表时间:1986
- 期刊:
- 影响因子:2.9
- 作者:Luyten,WH;Sharp,FR;Ryan,AF
- 通讯作者:Ryan,AF
The spatial representation of frequency in the rat dorsal cochlear nucleus and inferior colliculus.
大鼠耳蜗背核和下丘频率的空间表示。
- DOI:10.1016/0378-5955(88)90060-3
- 发表时间:1988
- 期刊:
- 影响因子:2.8
- 作者:Ryan,AF;Furlow,Z;Woolf,NK;Keithley,EM
- 通讯作者:Keithley,EM
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Allen F. Ryan其他文献
Single Cell Activity in the Auditory Cortex of Rhesus Monkeys: Behavioral Dependency
恒河猴听觉皮层的单细胞活动:行为依赖性
- DOI:
10.1126/science.177.4047.449 - 发表时间:
1972 - 期刊:
- 影响因子:56.9
- 作者:
Josef M. Miller;Dwight Sutton;Bryan E. Pfingst;Allen F. Ryan;R. Beaton;G. Gourevitch - 通讯作者:
G. Gourevitch
Impaired antibacterial function is restored via CCL3
- DOI:
10.1016/j.otohns.2009.06.252 - 发表时间:
2009-09-01 - 期刊:
- 影响因子:
- 作者:
Anke Leichtle;Kenshi Yamasaki;Sara Euteneuer;Stephen I. Wasserman;Barbara Wollenberg;Allen F. Ryan - 通讯作者:
Allen F. Ryan
Functional ontogeny in the central auditory pathway of the mongolian gerbil
蒙古沙鼠中央听觉通路的功能个体发育
- DOI:
- 发表时间:
2004 - 期刊:
- 影响因子:2
- 作者:
Allen F. Ryan;N. Woolf;Frank R. Sharp - 通讯作者:
Frank R. Sharp
Absence of mRNA encoding estrogen receptor in the cochlea of the rat
- DOI:
10.1016/s0194-5998(05)80827-7 - 发表时间:
1995-08-01 - 期刊:
- 影响因子:
- 作者:
Cherie-Ann Menezes;Jeffrey P. Harris;Hrair A. Koutnouyan;Allen F. Ryan - 通讯作者:
Allen F. Ryan
Immunmodulation im Cholesteatom
胆脂腺免疫调节
- DOI:
- 发表时间:
2021 - 期刊:
- 影响因子:1
- 作者:
A. Leichtle;D. Leffers;Markus Daerr;C. Draf;A. Kurabi;Allen F. Ryan;J. Rupp;K. Bruchhage - 通讯作者:
K. Bruchhage
Allen F. Ryan的其他文献
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{{ truncateString('Allen F. Ryan', 18)}}的其他基金
Genome-wide association study of tinnitus in the Million Veterans Program with emphasis on traumatic brain injury
百万退伍军人计划中耳鸣的全基因组关联研究,重点是创伤性脑损伤
- 批准号:
10247446 - 财政年份:2019
- 资助金额:
-- - 项目类别:
Genome-wide association study of tinnitus in the Million Veterans Program with emphasis on traumatic brain injury
百万退伍军人计划中耳鸣的全基因组关联研究,重点是创伤性脑损伤
- 批准号:
9483218 - 财政年份:2019
- 资助金额:
-- - 项目类别:
Genome-wide association study of tinnitus in the Million Veterans Program with emphasis on traumatic brain injury
百万退伍军人计划中耳鸣的全基因组关联研究,重点是创伤性脑损伤
- 批准号:
10383146 - 财政年份:2019
- 资助金额:
-- - 项目类别:
A Biological Interface for Auditory Rehabilitation with a Cochlear Implant
人工耳蜗听力康复的生物接口
- 批准号:
8594549 - 财政年份:2013
- 资助金额:
-- - 项目类别:
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