Article (Scientific journals)
Spatio‑temporal dynamics of β‑tubulin isotypes during the development of the sensory auditory organ in rat
Renauld, Justine; Johnen, Nicolas; Thelen, Nicolas et al.
2015In Histochemistry and Cell Biology
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Keywords :
Audition; Microtubules; development
Abstract :
[en] There are different β-tubulin isoforms in microtubules of vertebrate tissues. However, their functional significance is still largely unknown. In the present study, we investigated the localization of five β-tubulin isotypes (β1– 5) within the hearing organ during development in rat. By using confocal microscopy, we showed that with the exception of the β3-tubulin isoform that was specific to nerve fibres, all the different β-tubulin isoforms were mainly present in the supporting cells. Contrary to β1–4-tubulins, we also found that the β5-tubulin isoform appeared only at a key stage of the post-natal development in specific cell types (pillar cells and Deiters’ cells). By using transmission electron microscopy, we revealed further that this developmental stage coincided with the formation of two separate bundles of microtubules from a unique one in these supporting cells. Together, these results suggest that the β5-tubulin isoform might be involved in the generation of new microtubule bundles from a pre-existing one.
Disciplines :
Anatomy (cytology, histology, embryology...) & physiology
Author, co-author :
Renauld, Justine ;  Université de Liège > Département des sciences de la vie > GIGA-R : Biologie cellulaire
Johnen, Nicolas
Thelen, Nicolas  ;  Université de Liège > Département des sciences de la vie > GIGA-R : Biologie cellulaire
Cloes, Marie
Thiry, Marc  ;  Université de Liège > Département des sciences de la vie > GIGA-R : Biologie cellulaire
Language :
English
Title :
Spatio‑temporal dynamics of β‑tubulin isotypes during the development of the sensory auditory organ in rat
Publication date :
26 July 2015
Journal title :
Histochemistry and Cell Biology
ISSN :
0948-6143
eISSN :
1432-119X
Publisher :
Springer Science & Business Media B.V., New York, United States - New York
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 27 July 2015

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