Cited by 102Genetic and Kidney Cyst DiseasesCystic Fibrosis Research AdvancesDevelopmental Biology and Gene Regulation

Embryonic frog epidermis: a model for the study of cell-cell interactions in the development of mucociliary disease

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Dubaissi, Eamon, Papalopulu, Nancy·2011·Disease Models & Mechanisms

Abstract

SUMMARY: Specialised epithelia such as mucociliary, secretory and transporting epithelia line all major organs, including the lung, gut and kidney. Malfunction of these epithelia is associated with many human diseases. The frog embryonic epidermis possesses mucus-secreting and multiciliated cells, and has served as an excellent model system for the biogenesis of cilia. However, ionic regulation is important for the function of all specialised epithelia and it is not clear how this is achieved in the embryonic frog epidermis. Here, we show that a third cell type develops alongside ciliated and mucus-secreting cells in the tadpole skin. These cells express high levels of ion channels and transporters; therefore, we suggest that they are analogous to ionocytes found in transporting epithelia such as the mammalian kidney. We show that frog ionocytes express the transcription factor foxi1e, which is required for the development of these cells. Depletion of ionocytes by foxi1e knockdown has detrimental effects on the development of multiciliated cells, which show fewer and aberrantly beating cilia. These results reveal a newly identified role for ionocytes and suggest that the frog embryonic skin is a model system that is particularly suited to studying the interactions of different cell types in mucociliary, as well as in secretory and transporting, epithelia.

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Authors
Dubaissi, E., & Papalopulu, N.
Affiliations
University of Manchester (GB)
Corresponding author
Papalopulu, Nancy
Venue
Disease Models & Mechanisms
Published
2011-03-01
Volume
4
Issue
2
Pages
179-192
ISSN
  • 1754-8403 (ISSN-L)
  • 1754-8411
OpenAlex
W2118253874
Cited by
102
References
69
Citations by year
2026: 4 · 2025: 8 · 2024: 9 · 2023: 9 · 2022: 1 · 2021: 6 · 2020: 11 · 2019: 5 · 2018: 5 · 2017: 3 · 2016: 4 · 2015: 12 · 2014: 13 · 2013: 3 · 2012: 4
FWCI
1.98
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • Disease Models & Mechanisms (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • HighWire Press Open Archive (submittedVersion)
  • Research Explorer (The University of Manchester) (submittedVersion)
Funders
Wellcome Trust (090868)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Kidney Cyst Diseases
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cystic Fibrosis Research Advances
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
ionocytes, multiciliated cells, cilia biogenesis, mucous cells, ion regulation, cell-cell interactions, ciliary beating, epithelial development
MeSH terms
Animals, Cell Communication, Cilia, Disease, Embryo, Nonmammalian, Epidermis, Models, Biological, Mucus, Xenopus, Gene Expression Regulation, Developmental, Goblet Cells, Xenopus Proteins, Forkhead Transcription Factors, Gene Knockdown Techniques

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