A novel role for primary cilia in airway remodeling.

dc.contributor.author

Trempus, Carol S

dc.contributor.author

Song, Weifeng

dc.contributor.author

Lazrak, Ahmed

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Yu, Zhihong

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Creighton, Judy R

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Young, Bethany M

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Heise, Rebecca L

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Yu, Yen Rei

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Ingram, Jennifer L

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Tighe, Robert M

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Matalon, Sadis

dc.contributor.author

Garantziotis, Stavros

dc.date.accessioned

2022-07-01T14:27:10Z

dc.date.available

2022-07-01T14:27:10Z

dc.date.issued

2017-08

dc.date.updated

2022-07-01T14:27:09Z

dc.description.abstract

Primary cilia (PC) are solitary cellular organelles that play critical roles in development, homeostasis, and disease pathogenesis by modulating key signaling pathways such as Sonic Hedgehog and calcium flux. The antenna-like shape of PC enables them also to facilitate sensing of extracellular and mechanical stimuli into the cell, and a critical role for PC has been described for mesenchymal cells such as chondrocytes. However, nothing is known about the role of PC in airway smooth muscle cells (ASMCs) in the context of airway remodeling. We hypothesized that PC on ASMCs mediate cell contraction and are thus integral in the remodeling process. We found that PC are expressed on ASMCs in asthmatic lungs. Using pharmacological and genetic methods, we demonstrated that PC are necessary for ASMC contraction in a collagen gel three-dimensional model both in the absence of external stimulus and in response to the extracellular component hyaluronan. Mechanistically, we demonstrate that the effect of PC on ASMC contraction is, to a small extent, due to their effect on Sonic Hedgehog signaling and, to a larger extent, due to their effect on calcium influx and membrane depolarization. In conclusion, PC are necessary for the development of airway remodeling by mediating calcium flux and Sonic Hedgehog signaling.

dc.identifier

ajplung.00284.2016

dc.identifier.issn

1040-0605

dc.identifier.issn

1522-1504

dc.identifier.uri

https://hdl.handle.net/10161/25434

dc.language

eng

dc.publisher

American Physiological Society

dc.relation.ispartof

American journal of physiology. Lung cellular and molecular physiology

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10.1152/ajplung.00284.2016

dc.subject

Bronchi

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Cells, Cultured

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Cell Membrane

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Cilia

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Myocytes, Smooth Muscle

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Humans

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Asthma

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Signal Transduction

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Membrane Potentials

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Hedgehog Proteins

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Airway Remodeling

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HEK293 Cells

dc.title

A novel role for primary cilia in airway remodeling.

dc.type

Journal article

duke.contributor.orcid

Ingram, Jennifer L|0000-0002-5269-8864

duke.contributor.orcid

Tighe, Robert M|0000-0002-3465-9861

pubs.begin-page

L328

pubs.end-page

L338

pubs.issue

2

pubs.organisational-group

Duke

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Nicholas School of the Environment

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School of Medicine

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Clinical Science Departments

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Medicine

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Pathology

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Surgery

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Medicine, Pulmonary, Allergy, and Critical Care Medicine

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Surgery, Surgical Sciences

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Environmental Sciences and Policy

pubs.publication-status

Published

pubs.volume

313

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