Molecular logic for cellular specializations that initiate the auditory parallel processing pathways

Abstract The cochlear nuclear complex (CN), the starting point for all central auditory processing, encompasses a suite of neuronal cell types highly specialized for neural coding of acoustic signals. However, the molecular logic governing these specializations remains unknown. By combining single-n...

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Main Authors: Junzhan Jing, Ming Hu, Tenzin Ngodup, Qianqian Ma, Shu-Ning Natalie Lau, M. Cecilia Ljungberg, Matthew J. McGinley, Laurence O. Trussell, Xiaolong Jiang
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-024-55257-z
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author Junzhan Jing
Ming Hu
Tenzin Ngodup
Qianqian Ma
Shu-Ning Natalie Lau
M. Cecilia Ljungberg
Matthew J. McGinley
Laurence O. Trussell
Xiaolong Jiang
author_facet Junzhan Jing
Ming Hu
Tenzin Ngodup
Qianqian Ma
Shu-Ning Natalie Lau
M. Cecilia Ljungberg
Matthew J. McGinley
Laurence O. Trussell
Xiaolong Jiang
author_sort Junzhan Jing
collection DOAJ
description Abstract The cochlear nuclear complex (CN), the starting point for all central auditory processing, encompasses a suite of neuronal cell types highly specialized for neural coding of acoustic signals. However, the molecular logic governing these specializations remains unknown. By combining single-nucleus RNA sequencing and Patch-seq analysis, we reveal a set of transcriptionally distinct cell populations encompassing all previously observed types and discover multiple hitherto unknown subtypes with anatomical and physiological identity. The resulting comprehensive cell-type taxonomy reconciles anatomical position, morphological, physiological, and molecular criteria, enabling the determination of the molecular basis of the specialized cellular phenotypes in the CN. In particular, CN cell-type identity is encoded in a transcriptional architecture that orchestrates functionally congruent expression across a small set of gene families to customize projection patterns, input-output synaptic communication, and biophysical features required for encoding distinct aspects of acoustic signals. This high-resolution account of cellular heterogeneity from the molecular to the circuit level reveals the molecular logic driving cellular specializations, thus enabling the genetic dissection of auditory processing and hearing disorders with a high specificity.
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institution Kabale University
issn 2041-1723
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publishDate 2025-01-01
publisher Nature Portfolio
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spelling doaj-art-7d2cdac1c6884ea391ab6938b00788b22025-01-12T12:30:52ZengNature PortfolioNature Communications2041-17232025-01-0116112510.1038/s41467-024-55257-zMolecular logic for cellular specializations that initiate the auditory parallel processing pathwaysJunzhan Jing0Ming Hu1Tenzin Ngodup2Qianqian Ma3Shu-Ning Natalie Lau4M. Cecilia Ljungberg5Matthew J. McGinley6Laurence O. Trussell7Xiaolong Jiang8Jan and Dan Duncan Neurological Research Institute at Texas Children’s HospitalJan and Dan Duncan Neurological Research Institute at Texas Children’s HospitalOregon Hearing Research Center and Vollum Institute, Oregon Health and Science UniversityJan and Dan Duncan Neurological Research Institute at Texas Children’s HospitalJan and Dan Duncan Neurological Research Institute at Texas Children’s HospitalJan and Dan Duncan Neurological Research Institute at Texas Children’s HospitalJan and Dan Duncan Neurological Research Institute at Texas Children’s HospitalOregon Hearing Research Center and Vollum Institute, Oregon Health and Science UniversityJan and Dan Duncan Neurological Research Institute at Texas Children’s HospitalAbstract The cochlear nuclear complex (CN), the starting point for all central auditory processing, encompasses a suite of neuronal cell types highly specialized for neural coding of acoustic signals. However, the molecular logic governing these specializations remains unknown. By combining single-nucleus RNA sequencing and Patch-seq analysis, we reveal a set of transcriptionally distinct cell populations encompassing all previously observed types and discover multiple hitherto unknown subtypes with anatomical and physiological identity. The resulting comprehensive cell-type taxonomy reconciles anatomical position, morphological, physiological, and molecular criteria, enabling the determination of the molecular basis of the specialized cellular phenotypes in the CN. In particular, CN cell-type identity is encoded in a transcriptional architecture that orchestrates functionally congruent expression across a small set of gene families to customize projection patterns, input-output synaptic communication, and biophysical features required for encoding distinct aspects of acoustic signals. This high-resolution account of cellular heterogeneity from the molecular to the circuit level reveals the molecular logic driving cellular specializations, thus enabling the genetic dissection of auditory processing and hearing disorders with a high specificity.https://doi.org/10.1038/s41467-024-55257-z
spellingShingle Junzhan Jing
Ming Hu
Tenzin Ngodup
Qianqian Ma
Shu-Ning Natalie Lau
M. Cecilia Ljungberg
Matthew J. McGinley
Laurence O. Trussell
Xiaolong Jiang
Molecular logic for cellular specializations that initiate the auditory parallel processing pathways
Nature Communications
title Molecular logic for cellular specializations that initiate the auditory parallel processing pathways
title_full Molecular logic for cellular specializations that initiate the auditory parallel processing pathways
title_fullStr Molecular logic for cellular specializations that initiate the auditory parallel processing pathways
title_full_unstemmed Molecular logic for cellular specializations that initiate the auditory parallel processing pathways
title_short Molecular logic for cellular specializations that initiate the auditory parallel processing pathways
title_sort molecular logic for cellular specializations that initiate the auditory parallel processing pathways
url https://doi.org/10.1038/s41467-024-55257-z
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