Title |
Human alveolar epithelial cells type II are capable of TGFβ-dependent epithelial-mesenchymal-transition and collagen-synthesis
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Published in |
Respiratory Research, July 2018
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DOI | 10.1186/s12931-018-0841-9 |
Pubmed ID | |
Authors |
Torsten Goldmann, Gernot Zissel, Henrik Watz, Daniel Drömann, Martin Reck, Christian Kugler, Klaus F. Rabe, Sebastian Marwitz |
Abstract |
The origin of collagen-producing cells in lung fibrosis is unclear. The involvement of embryonic signaling pathways has been acknowledged and trans-differentiation of epithelial cells is discussed critically. The work presented here investigates the role of TGFB in cytoskeleton remodeling and the expression of Epithelial-Mesenchymal-Transition markers by Alveolar Epithelial Cells Type II and tests the hypothesis if human alveolar epithelial cells are capable of trans-differentiation and production of pro-fibrotic collagen. Primary human alveolar epithelial cells type II were extracted from donor tissues and stimulated with TGFβ and a TGFβ-inhibitor. Transcriptome and pathway analyses as well as validation of results on protein level were conducted. A TGFβ-responsive fingerprint was found and investigated for mutual interactions. Interaction modules exhibited enrichment of genes that favor actin cytoskeleton remodeling, differentiation processes and collagen metabolism. Cross-validation of the TGFβ-responsive fingerprint in an independent IPF dataset revealed overlap of genes and supported the direction of regulated genes and TGFβ-specificity. Primary human alveolar epithelial cells type II seem undergo a TGFβ-dependent phenotypic change, exhibit differential expression of EMT markers in vitro and acquire the potential to produce collagen. |
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Geographical breakdown
Country | Count | As % |
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United States | 1 | 14% |
Germany | 1 | 14% |
United Kingdom | 1 | 14% |
Unknown | 4 | 57% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 5 | 71% |
Scientists | 1 | 14% |
Science communicators (journalists, bloggers, editors) | 1 | 14% |
Mendeley readers
Geographical breakdown
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Unknown | 67 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 16 | 24% |
Researcher | 13 | 19% |
Student > Master | 6 | 9% |
Student > Bachelor | 6 | 9% |
Other | 5 | 7% |
Other | 9 | 13% |
Unknown | 12 | 18% |
Readers by discipline | Count | As % |
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Medicine and Dentistry | 16 | 24% |
Pharmacology, Toxicology and Pharmaceutical Science | 6 | 9% |
Agricultural and Biological Sciences | 4 | 6% |
Immunology and Microbiology | 2 | 3% |
Other | 5 | 7% |
Unknown | 16 | 24% |