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UNC Dataverse
Article . 2011
Data sources: Datacite
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TNF-α–Converting Enzyme/A Disintegrin and Metalloprotease−17 Mediates Mechanotransduction in Murine Tracheal Epithelial Cells

Authors: Susan W. Sunnarborg; Daniel J. Tschumperlin; Keisuke Horiuchi; Tetsuya Shiomi; Jeffrey M. Drazen; Carl P. Blobel; Jin-Ah Park;

TNF-α–Converting Enzyme/A Disintegrin and Metalloprotease−17 Mediates Mechanotransduction in Murine Tracheal Epithelial Cells

Abstract

Bronchoconstriction applies compressive stress to airway epithelial cells. We show that the application of compressive stress to cultured murine tracheal epithelial cells elicits the increased phosphorylation of extracellular signal–regulated kinase (ERK) and Akt through an epidermal growth factor receptor (EGFR)–dependent process, consistent with previous observations of the bronchoconstriction-induced activation of EGFR in both human and murine airways. Mechanotransduction requires metalloprotease activity, indicating a pivotal role for proteolytic EGF-family ligand shedding. However, cells derived from mice with targeted deletions of the EGFR ligands Tgfα and Hb-egf showed only modest decreases in responses, even when combined with neutralizing antibodies to the EGFR ligands epiregulin and amphiregulin, suggesting redundant or compensatory roles for individual EGF family members in mechanotransduction. In contrast, cells harvested from mice with a conditional deletion of the gene encoding the TNF-α–converting enzyme (TACE/ADAM17), a sheddase for multiple EGF-family proligands, displayed a near-complete attenuation of ERK and Akt phosphorylation responses and compressive stress–induced gene regulation. Our data provide strong evidence that TACE plays a critical central role in the transduction of compressive stress.

Keywords

Male, Mice, Knockout, Integrases, Immunoblotting, Epithelial Cells, ADAM17 Protein, Mechanotransduction, Cellular, ErbB Receptors, Mice, Inbred C57BL, ADAM Proteins, Mice, Animals, Intercellular Signaling Peptides and Proteins, Female, Phosphorylation, Extracellular Signal-Regulated MAP Kinases, Proto-Oncogene Proteins c-akt, Cells, Cultured, Heparin-binding EGF-like Growth Factor, Signal Transduction

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    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    24
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
24
Top 10%
Average
Top 10%
bronze