Long-range migration of centrioles to the apical surface of the olfactory epithelium

Olfactory sensory neurons (OSNs) in vertebrates detect odorants using multiple cilia, which protrude from the end of the dendrite and require centrioles for their formation. In mouse olfactory epithelium, the centrioles originate in progenitor cells near the basal lamina, often 50–100 μm from the ap...

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Main Authors: Kaitlin Ching, Jennifer T Wang, Tim Stearns
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2022-04-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/74399
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author Kaitlin Ching
Jennifer T Wang
Tim Stearns
author_facet Kaitlin Ching
Jennifer T Wang
Tim Stearns
author_sort Kaitlin Ching
collection DOAJ
description Olfactory sensory neurons (OSNs) in vertebrates detect odorants using multiple cilia, which protrude from the end of the dendrite and require centrioles for their formation. In mouse olfactory epithelium, the centrioles originate in progenitor cells near the basal lamina, often 50–100 μm from the apical surface. It is unknown how centrioles traverse this distance or mature to form cilia. Using high-resolution expansion microscopy, we found that centrioles migrate together, with multiple centrioles per group and multiple groups per OSN, during dendrite outgrowth. Centrioles were found by live imaging to migrate slowly, with a maximum rate of 0.18 µm/minute. Centrioles in migrating groups were associated with microtubule nucleation factors, but acquired rootletin and appendages only in mature OSNs. The parental centriole had preexisting appendages, formed a single cilium before other centrioles, and retained its unique appendage configuration in the mature OSN. We developed an air-liquid interface explant culture system for OSNs and used it to show that centriole migration can be perturbed ex vivo by stabilizing microtubules. We consider these results in the context of a comprehensive model for centriole formation, migration, and maturation in this important sensory cell type.
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spelling doaj.art-b83da0c517994c289eb611d3091e9c5c2022-12-22T02:05:35ZengeLife Sciences Publications LtdeLife2050-084X2022-04-011110.7554/eLife.74399Long-range migration of centrioles to the apical surface of the olfactory epitheliumKaitlin Ching0https://orcid.org/0000-0002-0517-2421Jennifer T Wang1https://orcid.org/0000-0002-8506-5182Tim Stearns2https://orcid.org/0000-0002-0671-6582Department of Biology, Stanford University, Stanford, United StatesDepartment of Biology, Stanford University, Stanford, United StatesDepartment of Biology, Stanford University, Stanford, United States; Department of Genetics, Stanford University School of Medicine, Stanford, United StatesOlfactory sensory neurons (OSNs) in vertebrates detect odorants using multiple cilia, which protrude from the end of the dendrite and require centrioles for their formation. In mouse olfactory epithelium, the centrioles originate in progenitor cells near the basal lamina, often 50–100 μm from the apical surface. It is unknown how centrioles traverse this distance or mature to form cilia. Using high-resolution expansion microscopy, we found that centrioles migrate together, with multiple centrioles per group and multiple groups per OSN, during dendrite outgrowth. Centrioles were found by live imaging to migrate slowly, with a maximum rate of 0.18 µm/minute. Centrioles in migrating groups were associated with microtubule nucleation factors, but acquired rootletin and appendages only in mature OSNs. The parental centriole had preexisting appendages, formed a single cilium before other centrioles, and retained its unique appendage configuration in the mature OSN. We developed an air-liquid interface explant culture system for OSNs and used it to show that centriole migration can be perturbed ex vivo by stabilizing microtubules. We consider these results in the context of a comprehensive model for centriole formation, migration, and maturation in this important sensory cell type.https://elifesciences.org/articles/74399olfactionsensory neuroncentrioleciliaexpansion microscopymigration
spellingShingle Kaitlin Ching
Jennifer T Wang
Tim Stearns
Long-range migration of centrioles to the apical surface of the olfactory epithelium
eLife
olfaction
sensory neuron
centriole
cilia
expansion microscopy
migration
title Long-range migration of centrioles to the apical surface of the olfactory epithelium
title_full Long-range migration of centrioles to the apical surface of the olfactory epithelium
title_fullStr Long-range migration of centrioles to the apical surface of the olfactory epithelium
title_full_unstemmed Long-range migration of centrioles to the apical surface of the olfactory epithelium
title_short Long-range migration of centrioles to the apical surface of the olfactory epithelium
title_sort long range migration of centrioles to the apical surface of the olfactory epithelium
topic olfaction
sensory neuron
centriole
cilia
expansion microscopy
migration
url https://elifesciences.org/articles/74399
work_keys_str_mv AT kaitlinching longrangemigrationofcentriolestotheapicalsurfaceoftheolfactoryepithelium
AT jennifertwang longrangemigrationofcentriolestotheapicalsurfaceoftheolfactoryepithelium
AT timstearns longrangemigrationofcentriolestotheapicalsurfaceoftheolfactoryepithelium