Sensory hair cell death and regeneration in fishes

Sensory hair cells are specialized mechanotransductive receptors required for hearing and vestibular function. Loss of hair cells in humans and other mammals is permanent and causes reduced hearing and balance. In the early 1980’s, it was shown that hair cells continue to be added to the inner ear...

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Main Authors: Jerry D. Monroe, Gopinath eRajadinakaran, Michael E. Smith
Format: Article
Language:English
Published: Frontiers Media S.A. 2015-04-01
Series:Frontiers in Cellular Neuroscience
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fncel.2015.00131/full
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author Jerry D. Monroe
Gopinath eRajadinakaran
Michael E. Smith
author_facet Jerry D. Monroe
Gopinath eRajadinakaran
Michael E. Smith
author_sort Jerry D. Monroe
collection DOAJ
description Sensory hair cells are specialized mechanotransductive receptors required for hearing and vestibular function. Loss of hair cells in humans and other mammals is permanent and causes reduced hearing and balance. In the early 1980’s, it was shown that hair cells continue to be added to the inner ear sensory epithelia in cartilaginous and bony fishes. Soon thereafter, hair cell regeneration was documented in the chick cochlea following acoustic trauma. Since then, research using chick and other avian models has led to great insights into hair cell death and regeneration. However, with the rise of the zebrafish as a model organism for studying disease and developmental processes, there has been an increased interest in studying sensory hair cell death and regeneration in its lateral line and inner ears. Advances derived from studies in zebrafish and other fish species include understanding the effect of ototoxins on hair cells and finding otoprotectants to mitigate ototoxin damage, the role of cellular proliferation versus direct transdifferentiation during hair cell regeneration, and elucidating cellular pathways involved in the regeneration process. This review will summarize research on hair cell death and regeneration using fish models, indicate the potential strengths and weaknesses of these models, and discuss several emerging areas of future studies.
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spelling doaj.art-19856989c69241ac8ea51521d096fed22022-12-22T00:18:14ZengFrontiers Media S.A.Frontiers in Cellular Neuroscience1662-51022015-04-01910.3389/fncel.2015.00131134701Sensory hair cell death and regeneration in fishesJerry D. Monroe0Gopinath eRajadinakaran1Michael E. Smith2Western Kentucky UniversityUniversity of Connecticut Health CenterWestern Kentucky UniversitySensory hair cells are specialized mechanotransductive receptors required for hearing and vestibular function. Loss of hair cells in humans and other mammals is permanent and causes reduced hearing and balance. In the early 1980’s, it was shown that hair cells continue to be added to the inner ear sensory epithelia in cartilaginous and bony fishes. Soon thereafter, hair cell regeneration was documented in the chick cochlea following acoustic trauma. Since then, research using chick and other avian models has led to great insights into hair cell death and regeneration. However, with the rise of the zebrafish as a model organism for studying disease and developmental processes, there has been an increased interest in studying sensory hair cell death and regeneration in its lateral line and inner ears. Advances derived from studies in zebrafish and other fish species include understanding the effect of ototoxins on hair cells and finding otoprotectants to mitigate ototoxin damage, the role of cellular proliferation versus direct transdifferentiation during hair cell regeneration, and elucidating cellular pathways involved in the regeneration process. This review will summarize research on hair cell death and regeneration using fish models, indicate the potential strengths and weaknesses of these models, and discuss several emerging areas of future studies.http://journal.frontiersin.org/Journal/10.3389/fncel.2015.00131/fullCell DeathCell ProliferationHearing Loss, SensorineuralRegenerationInner earHair cell
spellingShingle Jerry D. Monroe
Gopinath eRajadinakaran
Michael E. Smith
Sensory hair cell death and regeneration in fishes
Frontiers in Cellular Neuroscience
Cell Death
Cell Proliferation
Hearing Loss, Sensorineural
Regeneration
Inner ear
Hair cell
title Sensory hair cell death and regeneration in fishes
title_full Sensory hair cell death and regeneration in fishes
title_fullStr Sensory hair cell death and regeneration in fishes
title_full_unstemmed Sensory hair cell death and regeneration in fishes
title_short Sensory hair cell death and regeneration in fishes
title_sort sensory hair cell death and regeneration in fishes
topic Cell Death
Cell Proliferation
Hearing Loss, Sensorineural
Regeneration
Inner ear
Hair cell
url http://journal.frontiersin.org/Journal/10.3389/fncel.2015.00131/full
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AT gopinatherajadinakaran sensoryhaircelldeathandregenerationinfishes
AT michaelesmith sensoryhaircelldeathandregenerationinfishes