Greater epithelial ridge cells are the principal organoid-forming progenitors of the mouse cochlea

Copyright © 2020 The Author(s). Published by Elsevier Inc. All rights reserved..

In mammals, hearing loss is irreversible due to the lack of regenerative potential of non-sensory cochlear cells. Neonatal cochlear cells, however, can grow into organoids that harbor sensory epithelial cells, including hair cells and supporting cells. Here, we purify different cochlear cell types from neonatal mice, validate the composition of the different groups with single-cell RNA sequencing (RNA-seq), and assess the various groups' potential to grow into inner ear organoids. We find that the greater epithelial ridge (GER), a transient cell population that disappears during post-natal cochlear maturation, harbors the most potent organoid-forming cells. We identified three distinct GER cell groups that correlate with a specific spatial distribution of marker genes. Organoid formation was synergistically enhanced when the cells were cultured at increasing density. This effect is not due to diffusible signals but requires direct cell-to-cell contact. Our findings improve the development of cell-based assays to study culture-generated inner ear cell types.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:34

Enthalten in:

Cell reports - 34(2021), 3 vom: 19. Jan., Seite 108646

Sprache:

Englisch

Beteiligte Personen:

Kubota, Marie [VerfasserIn]
Scheibinger, Mirko [VerfasserIn]
Jan, Taha A [VerfasserIn]
Heller, Stefan [VerfasserIn]

Links:

Volltext

Themen:

Auditory periphery
Epigenetic reprogramming
Hair cell regeneration
Inner ear organoid
Journal Article
Otic
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Supporting cell

Anmerkungen:

Date Completed 28.01.2022

Date Revised 30.03.2024

published: Print

Citation Status MEDLINE

doi:

10.1016/j.celrep.2020.108646

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM320344339