Comprehensive transcriptome analysis of cochlear spiral ganglion neurons at multiple ages

Inner ear cochlear spiral ganglion neurons (SGNs) transmit sound information to the brainstem. Recent single cell RNA-Seq studies have revealed heterogeneities within SGNs. Nonetheless, much remains unknown about the transcriptome of SGNs, especially which genes are specifically expressed in SGNs. T...

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Main Authors: Chao Li, Xiang Li, Zhenghong Bi, Ken Sugino, Guangqin Wang, Tong Zhu, Zhiyong Liu
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2020-01-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/50491
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author Chao Li
Xiang Li
Zhenghong Bi
Ken Sugino
Guangqin Wang
Tong Zhu
Zhiyong Liu
author_facet Chao Li
Xiang Li
Zhenghong Bi
Ken Sugino
Guangqin Wang
Tong Zhu
Zhiyong Liu
author_sort Chao Li
collection DOAJ
description Inner ear cochlear spiral ganglion neurons (SGNs) transmit sound information to the brainstem. Recent single cell RNA-Seq studies have revealed heterogeneities within SGNs. Nonetheless, much remains unknown about the transcriptome of SGNs, especially which genes are specifically expressed in SGNs. To address these questions, we needed a deeper and broader gene coverage than that in previous studies. We performed bulk RNA-Seq on mouse SGNs at five ages, and on two reference cell types (hair cells and glia). Their transcriptome comparison identified genes previously unknown to be specifically expressed in SGNs. To validate our dataset and provide useful genetic tools for this research field, we generated two knockin mouse strains: Scrt2-P2A-tdTomato and Celf4-3xHA-P2A-iCreER-T2A-EGFP. Our comprehensive analysis confirmed the SGN-selective expression of the candidate genes, testifying to the quality of our transcriptome data. These two mouse strains can be used to temporally label SGNs or to sort them.
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spelling doaj.art-90250314f9ad4dde90ae47c1a7b1b5a72022-12-22T04:32:35ZengeLife Sciences Publications LtdeLife2050-084X2020-01-01910.7554/eLife.50491Comprehensive transcriptome analysis of cochlear spiral ganglion neurons at multiple agesChao Li0Xiang Li1Zhenghong Bi2Ken Sugino3https://orcid.org/0000-0002-5795-0635Guangqin Wang4Tong Zhu5Zhiyong Liu6https://orcid.org/0000-0002-9675-1233Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, ChinaInstitute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, ChinaInstitute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, ChinaHoward Hughes Medical Institute, Janelia Research Campus, Ashburn, United StatesInstitute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, ChinaInstitute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, ChinaInstitute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China; Shanghai Center for Brain Science and Brain-Inspired Intelligence Technology, Shanghai, ChinaInner ear cochlear spiral ganglion neurons (SGNs) transmit sound information to the brainstem. Recent single cell RNA-Seq studies have revealed heterogeneities within SGNs. Nonetheless, much remains unknown about the transcriptome of SGNs, especially which genes are specifically expressed in SGNs. To address these questions, we needed a deeper and broader gene coverage than that in previous studies. We performed bulk RNA-Seq on mouse SGNs at five ages, and on two reference cell types (hair cells and glia). Their transcriptome comparison identified genes previously unknown to be specifically expressed in SGNs. To validate our dataset and provide useful genetic tools for this research field, we generated two knockin mouse strains: Scrt2-P2A-tdTomato and Celf4-3xHA-P2A-iCreER-T2A-EGFP. Our comprehensive analysis confirmed the SGN-selective expression of the candidate genes, testifying to the quality of our transcriptome data. These two mouse strains can be used to temporally label SGNs or to sort them.https://elifesciences.org/articles/50491inner earspiral ganglion neuronRNA-Seqscrt2celf4cochlea
spellingShingle Chao Li
Xiang Li
Zhenghong Bi
Ken Sugino
Guangqin Wang
Tong Zhu
Zhiyong Liu
Comprehensive transcriptome analysis of cochlear spiral ganglion neurons at multiple ages
eLife
inner ear
spiral ganglion neuron
RNA-Seq
scrt2
celf4
cochlea
title Comprehensive transcriptome analysis of cochlear spiral ganglion neurons at multiple ages
title_full Comprehensive transcriptome analysis of cochlear spiral ganglion neurons at multiple ages
title_fullStr Comprehensive transcriptome analysis of cochlear spiral ganglion neurons at multiple ages
title_full_unstemmed Comprehensive transcriptome analysis of cochlear spiral ganglion neurons at multiple ages
title_short Comprehensive transcriptome analysis of cochlear spiral ganglion neurons at multiple ages
title_sort comprehensive transcriptome analysis of cochlear spiral ganglion neurons at multiple ages
topic inner ear
spiral ganglion neuron
RNA-Seq
scrt2
celf4
cochlea
url https://elifesciences.org/articles/50491
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AT xiangli comprehensivetranscriptomeanalysisofcochlearspiralganglionneuronsatmultipleages
AT zhenghongbi comprehensivetranscriptomeanalysisofcochlearspiralganglionneuronsatmultipleages
AT kensugino comprehensivetranscriptomeanalysisofcochlearspiralganglionneuronsatmultipleages
AT guangqinwang comprehensivetranscriptomeanalysisofcochlearspiralganglionneuronsatmultipleages
AT tongzhu comprehensivetranscriptomeanalysisofcochlearspiralganglionneuronsatmultipleages
AT zhiyongliu comprehensivetranscriptomeanalysisofcochlearspiralganglionneuronsatmultipleages