Cited by 36Neonatal Respiratory Health ResearchDevelopmental Biology and Gene RegulationTracheal and airway disorders

NPAS3 is a trachealess homolog critical for lung development and homeostasis

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Zhou, Shutang, Degan, Simone, Potts, Erin N., Foster, W. Michael, Sunday, Mary E.·2009·Proceedings of the National Academy of Sciences

Abstract

Trachealess (Trh) is a PAS domain transcription factor regulating Drosophila tracheogenesis. No other Trh homolog has been associated with a respiratory phenotype. Seeking homolog(s) regulating lung development, we screened murine genomic DNA using trh oligonucleotides, identifying only Npas3. Npas3 mRNA peaks in lung from E10.5 to E13.5, verified by sequencing, with immunostaining in airway epithelial cells. Npas3-null mice have reduced lung branching morphogenesis but are viable prenatally. Npas3-null newborns die in respiratory distress, with diminished alveolarization, decreased Shh, Fgf9, Fgf10, and Bmp4 mRNAs, and increased Spry2, consistent with reduced FGF signaling. Exogenous FGF10 rescues branching morphogenesis in Npas3-null lungs. In promoter reporter assays, NPAS3 directly upregulates Shh and represses Spry2. Npas3(+/-) mice have a milder lung phenotype, surviving postnatally, but develop emphysema and airways hyperreactivity. Therefore, absence of a developmentally expressed transcription factor can alter downstream gene expression and multiple signaling pathways in organogenesis. NPAS3 haploinsufficiency may also lead to emphysema and asthma.

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Crossref · 10.1073/pnas.0902426106

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Authors
Zhou, S., Degan, S., Potts, E. N., Foster, W. M., & Sunday, M. E.
Affiliations
  • Duke Medical Center (US)
  • Duke University (US)
  • Brigham and Women's Hospital (US)
Venue
Proceedings of the National Academy of Sciences
Published
2009-07-14
Volume
106
Issue
28
Pages
11691-11696
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1967454766
Cited by
36
References
30
Citations by year
2025: 2 · 2024: 1 · 2023: 2 · 2022: 2 · 2021: 1 · 2020: 1 · 2019: 2 · 2018: 2 · 2017: 1 · 2016: 2 · 2015: 2 · 2014: 2 · 2013: 7 · 2012: 4
FWCI
2.53
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Heart, Lung, and Blood Institute (2R01 HL44984, R01HL044984)
  • National Institute of Environmental Health Sciences (ES 016347, ES011961, R01ES016347, P30ES011961)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Neonatal Respiratory Health Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Tracheal and airway disorders
Keywords
NPAS3, lung development, lung homeostasis, lung branching morphogenesis, alveolarization, FGF signaling, Sonic hedgehog, SPRY2, transcription factors, emphysema, airway hyperresponsiveness, asthma, haploinsufficiency, airway epithelium
MeSH terms
Animals, Base Sequence, Immunohistochemistry, Lung, Molecular Sequence Data, Morphogenesis, Oligonucleotides, Transcription Factors, Blotting, Western, Sequence Analysis, DNA, Mice, Knockout, Gene Expression Regulation, Developmental, Reverse Transcriptase Polymerase Chain Reaction, Gene Expression Profiling, Drosophila Proteins, Mice, Basic Helix-Loop-Helix Proteins

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