학술논문
A potassium channel agonist protects hearing function and promotes outer hair cell survival in a mouse model for age-related hearing loss.
Document Type
Academic Journal
Author
Peixoto Pinheiro B; Translational Hearing Research, Tübingen Hearing Research Center, Department of Otolaryngology, Head & Neck Surgery, University of Tübingen, 72076, Tübingen, Germany. barbara.peixoto-pinheiro@uni-tuebingen.de.; Müller M; Translational Hearing Research, Tübingen Hearing Research Center, Department of Otolaryngology, Head & Neck Surgery, University of Tübingen, 72076, Tübingen, Germany.; Bös M; Acousia Therapeutics, 72070, Tübingen, Germany.; Guezguez J; Synovo, 72076, Tübingen, Germany.; Burnet M; Synovo, 72076, Tübingen, Germany.; Tornincasa M; Axxam, Bresso, 20091, Milan, Italy.; Rizzetto R; Axxam, Bresso, 20091, Milan, Italy.; Rolland JF; Axxam, Bresso, 20091, Milan, Italy.; Liberati C; Axxam, Bresso, 20091, Milan, Italy.; Lohmer S; Axxam, Bresso, 20091, Milan, Italy.; Adel Y; Translational Hearing Research, Tübingen Hearing Research Center, Department of Otolaryngology, Head & Neck Surgery, University of Tübingen, 72076, Tübingen, Germany.; Löwenheim H; Translational Hearing Research, Tübingen Hearing Research Center, Department of Otolaryngology, Head & Neck Surgery, University of Tübingen, 72076, Tübingen, Germany. hubert.loewenheim@uni-tuebingen.de.
Source
Publisher: Nature Pub. Group Country of Publication: England NLM ID: 101524092 Publication Model: Electronic Cited Medium: Internet ISSN: 2041-4889 (Electronic) NLM ISO Abbreviation: Cell Death Dis Subsets: MEDLINE
Subject
Language
English
Abstract
Age-related hearing loss (ARHL) is the most common sensory impairment mainly caused by degeneration of sensory hair cells in the cochlea with no causal medical treatment available. Auditory function and sensory hair cell survival critically depend on the Kv7.4 (KCNQ4) channel, a voltage-gated potassium channel expressed in outer hair cells (OHCs), with its impaired function or reduced activity previously associated with ARHL. Here, we investigated the effect of a potent small-molecule Kv7.4 agonist on ARHL in the senescence-accelerated mouse prone 8 (SAMP8) model. For the first time in vivo, we show that Kv7.4 activation can significantly reduce age-related threshold shifts of auditory brainstem responses as well as OHC loss in the SAMP8 model. Pharmacological activation of Kv7.4 thus holds great potential as a therapeutic approach for ARHL as well as other hearing impairments related to Kv7.4 function.
(© 2022. The Author(s).)
(© 2022. The Author(s).)