Activation of NOTCH1 or NOTCH3 signaling skews human airway basal cell differentiation toward a secretory pathway.

Airway basal cells (BC) function as stem/progenitor cells capable of differentiating into the luminal ciliated and secretory cells to replenish the airway epithelium during physiological turnover and repair. The objective of this study was to define the role of Notch signaling in regulating human ai...

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Main Authors: Kazunori Gomi, Vanessa Arbelaez, Ronald G Crystal, Matthew S Walters
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4336283?pdf=render
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author Kazunori Gomi
Vanessa Arbelaez
Ronald G Crystal
Matthew S Walters
author_facet Kazunori Gomi
Vanessa Arbelaez
Ronald G Crystal
Matthew S Walters
author_sort Kazunori Gomi
collection DOAJ
description Airway basal cells (BC) function as stem/progenitor cells capable of differentiating into the luminal ciliated and secretory cells to replenish the airway epithelium during physiological turnover and repair. The objective of this study was to define the role of Notch signaling in regulating human airway BC differentiation into a pseudostratified mucociliated epithelium. Notch inhibition with γ-secretase inhibitors demonstrated Notch activation is essential for BC differentiation into secretory and ciliated cells, but more so for the secretory lineage. Sustained cell autonomous ligand independent Notch activation via lentivirus expression of the intracellular domain of each Notch receptor (NICD1-4) demonstrated that the NOTCH2 and 4 pathways have little effect on BC differentiation into secretory and ciliated cells, while activation of the NOTCH1 or 3 pathways has a major influence, with persistent expression of NICD1 or 3 resulting in a skewing toward secretory cell differentiation with a parallel decrease in ciliated cell differentiation. These observations provide insights into the control of the balance of BC differentiation into the secretory vs ciliated cell lineage, a balance that is critical for maintaining the normal function of the airway epithelium in barrier defense against the inhaled environment.
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spelling doaj.art-9483e946651348bd88dee3542f9a65b62022-12-21T22:37:22ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01102e011650710.1371/journal.pone.0116507Activation of NOTCH1 or NOTCH3 signaling skews human airway basal cell differentiation toward a secretory pathway.Kazunori GomiVanessa ArbelaezRonald G CrystalMatthew S WaltersAirway basal cells (BC) function as stem/progenitor cells capable of differentiating into the luminal ciliated and secretory cells to replenish the airway epithelium during physiological turnover and repair. The objective of this study was to define the role of Notch signaling in regulating human airway BC differentiation into a pseudostratified mucociliated epithelium. Notch inhibition with γ-secretase inhibitors demonstrated Notch activation is essential for BC differentiation into secretory and ciliated cells, but more so for the secretory lineage. Sustained cell autonomous ligand independent Notch activation via lentivirus expression of the intracellular domain of each Notch receptor (NICD1-4) demonstrated that the NOTCH2 and 4 pathways have little effect on BC differentiation into secretory and ciliated cells, while activation of the NOTCH1 or 3 pathways has a major influence, with persistent expression of NICD1 or 3 resulting in a skewing toward secretory cell differentiation with a parallel decrease in ciliated cell differentiation. These observations provide insights into the control of the balance of BC differentiation into the secretory vs ciliated cell lineage, a balance that is critical for maintaining the normal function of the airway epithelium in barrier defense against the inhaled environment.http://europepmc.org/articles/PMC4336283?pdf=render
spellingShingle Kazunori Gomi
Vanessa Arbelaez
Ronald G Crystal
Matthew S Walters
Activation of NOTCH1 or NOTCH3 signaling skews human airway basal cell differentiation toward a secretory pathway.
PLoS ONE
title Activation of NOTCH1 or NOTCH3 signaling skews human airway basal cell differentiation toward a secretory pathway.
title_full Activation of NOTCH1 or NOTCH3 signaling skews human airway basal cell differentiation toward a secretory pathway.
title_fullStr Activation of NOTCH1 or NOTCH3 signaling skews human airway basal cell differentiation toward a secretory pathway.
title_full_unstemmed Activation of NOTCH1 or NOTCH3 signaling skews human airway basal cell differentiation toward a secretory pathway.
title_short Activation of NOTCH1 or NOTCH3 signaling skews human airway basal cell differentiation toward a secretory pathway.
title_sort activation of notch1 or notch3 signaling skews human airway basal cell differentiation toward a secretory pathway
url http://europepmc.org/articles/PMC4336283?pdf=render
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