Negative Transpulmonary Pressure Disrupts Airway Morphogenesis by Suppressing Fgf10

Mechanical forces are increasingly recognized as important determinants of cell and tissue phenotype and also appear to play a critical role in organ development. During the fetal stages of lung morphogenesis, the pressure of the fluid within the lumen of the airways is higher than that within the c...

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Autores principales: Alice E. Stanton, Katharine Goodwin, Aswin Sundarakrishnan, Jacob M. Jaslove, Jason P. Gleghorn, Amira L. Pavlovich, Celeste M. Nelson
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Publicado: Frontiers Media S.A. 2021
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spelling oai:doaj.org-article:3c30d800ab4e4f2ca162659a19cca9ae2021-12-02T01:35:41ZNegative Transpulmonary Pressure Disrupts Airway Morphogenesis by Suppressing Fgf102296-634X10.3389/fcell.2021.725785https://doaj.org/article/3c30d800ab4e4f2ca162659a19cca9ae2021-12-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fcell.2021.725785/fullhttps://doaj.org/toc/2296-634XMechanical forces are increasingly recognized as important determinants of cell and tissue phenotype and also appear to play a critical role in organ development. During the fetal stages of lung morphogenesis, the pressure of the fluid within the lumen of the airways is higher than that within the chest cavity, resulting in a positive transpulmonary pressure. Several congenital defects decrease or reverse transpulmonary pressure across the developing airways and are associated with a reduced number of branches and a correspondingly underdeveloped lung that is insufficient for gas exchange after birth. The small size of the early pseudoglandular stage lung and its relative inaccessibility in utero have precluded experimental investigation of the effects of transpulmonary pressure on early branching morphogenesis. Here, we present a simple culture model to explore the effects of negative transpulmonary pressure on development of the embryonic airways. We found that negative transpulmonary pressure decreases branching, and that it does so in part by altering the expression of fibroblast growth factor 10 (Fgf10). The morphogenesis of lungs maintained under negative transpulmonary pressure can be rescued by supplementing the culture medium with exogenous FGF10. These data suggest that Fgf10 expression is regulated by mechanical stress in the developing airways. Understanding the mechanical signaling pathways that connect transpulmonary pressure to FGF10 can lead to the establishment of novel non-surgical approaches for ameliorating congenital lung defects.Alice E. StantonKatharine GoodwinAswin SundarakrishnanJacob M. JasloveJason P. GleghornAmira L. PavlovichCeleste M. NelsonCeleste M. NelsonFrontiers Media S.A.articletissue morphodynamicslung liquidmechanical stressmechanotransductionpulmonary hypoplasiacongenital diaphragmatic hernia (CDH)Biology (General)QH301-705.5ENFrontiers in Cell and Developmental Biology, Vol 9 (2021)
institution DOAJ
collection DOAJ
language EN
topic tissue morphodynamics
lung liquid
mechanical stress
mechanotransduction
pulmonary hypoplasia
congenital diaphragmatic hernia (CDH)
Biology (General)
QH301-705.5
spellingShingle tissue morphodynamics
lung liquid
mechanical stress
mechanotransduction
pulmonary hypoplasia
congenital diaphragmatic hernia (CDH)
Biology (General)
QH301-705.5
Alice E. Stanton
Katharine Goodwin
Aswin Sundarakrishnan
Jacob M. Jaslove
Jason P. Gleghorn
Amira L. Pavlovich
Celeste M. Nelson
Celeste M. Nelson
Negative Transpulmonary Pressure Disrupts Airway Morphogenesis by Suppressing Fgf10
description Mechanical forces are increasingly recognized as important determinants of cell and tissue phenotype and also appear to play a critical role in organ development. During the fetal stages of lung morphogenesis, the pressure of the fluid within the lumen of the airways is higher than that within the chest cavity, resulting in a positive transpulmonary pressure. Several congenital defects decrease or reverse transpulmonary pressure across the developing airways and are associated with a reduced number of branches and a correspondingly underdeveloped lung that is insufficient for gas exchange after birth. The small size of the early pseudoglandular stage lung and its relative inaccessibility in utero have precluded experimental investigation of the effects of transpulmonary pressure on early branching morphogenesis. Here, we present a simple culture model to explore the effects of negative transpulmonary pressure on development of the embryonic airways. We found that negative transpulmonary pressure decreases branching, and that it does so in part by altering the expression of fibroblast growth factor 10 (Fgf10). The morphogenesis of lungs maintained under negative transpulmonary pressure can be rescued by supplementing the culture medium with exogenous FGF10. These data suggest that Fgf10 expression is regulated by mechanical stress in the developing airways. Understanding the mechanical signaling pathways that connect transpulmonary pressure to FGF10 can lead to the establishment of novel non-surgical approaches for ameliorating congenital lung defects.
format article
author Alice E. Stanton
Katharine Goodwin
Aswin Sundarakrishnan
Jacob M. Jaslove
Jason P. Gleghorn
Amira L. Pavlovich
Celeste M. Nelson
Celeste M. Nelson
author_facet Alice E. Stanton
Katharine Goodwin
Aswin Sundarakrishnan
Jacob M. Jaslove
Jason P. Gleghorn
Amira L. Pavlovich
Celeste M. Nelson
Celeste M. Nelson
author_sort Alice E. Stanton
title Negative Transpulmonary Pressure Disrupts Airway Morphogenesis by Suppressing Fgf10
title_short Negative Transpulmonary Pressure Disrupts Airway Morphogenesis by Suppressing Fgf10
title_full Negative Transpulmonary Pressure Disrupts Airway Morphogenesis by Suppressing Fgf10
title_fullStr Negative Transpulmonary Pressure Disrupts Airway Morphogenesis by Suppressing Fgf10
title_full_unstemmed Negative Transpulmonary Pressure Disrupts Airway Morphogenesis by Suppressing Fgf10
title_sort negative transpulmonary pressure disrupts airway morphogenesis by suppressing fgf10
publisher Frontiers Media S.A.
publishDate 2021
url https://doaj.org/article/3c30d800ab4e4f2ca162659a19cca9ae
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