Abstract
The lung needs to maintain its integrity and functionality throughout lifespan since it is critical for survival. At steady-state, lung cell turnover is typically very low, and resident progenitor cells are in a quiescent state. The activation or inhibition of different signaling pathways in epithelial and/or mesenchymal cells of the adult lung tissue is crucial to maintaining the quiescence of progenitor’s niches. Interestingly, growth factors that have been reported as essential for lung development are also key to preserve adult tissue. With this chapter, we aim to describe the current knowledge regarding the molecular players that contribute to maintaining the homeostasis of the adult lung, specifically, SHH, FGF, WNT, Retinoic Acid, TGFβ, BMP, VEGF, and PDGF.
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Abbreviations
- ABCA3:
-
ATP Binding Cassette Subfamily A Member 3
- AEC:
-
Alveolar epithelial cells
- AM:
-
Alveolar macrophages
- ASMC:
-
Airway smooth muscle cells
- BC:
-
Basal cells
- BMP:
-
Bone Morphogenetic Protein
- CYP26A1:
-
Cytochrome P450 26A1
- DHH:
-
Desert Hedgehog
- FGF:
-
Fibroblast Growth Factor
- FGFR:
-
Fibroblast Growth Factor Receptor
- GLI:
-
Glioma-associated oncogene
- GREM2:
-
Gremlin 2
- IHH:
-
Indian Hedgehog
- LIF:
-
Lipofibroblast
- LRP:
-
Lipoprotein receptor-related protein
- NRP:
-
Neuropilin
- PDGF:
-
Platelet Derived Growth Factor
- PDGFR:
-
Platelet Derived Growth Factor Receptor
- PTCH:
-
Patched
- RA:
-
Retinoic Acid
- RALDH1:
-
Retinaldehyde dehydrogenase 1
- RAR:
-
Retinoic Acid Receptor
- SFRP1:
-
Secreted frizzled-related protein 1
- SHH:
-
Sonic Hedgehog
- SMO:
-
Smoothened
- SOX2:
-
SRY (sex determining region Y)-box 2
- SP:
-
Surfactant protein
- SPRY2:
-
Sprouty homolog 2
- TGFβ:
-
Transforming Growth Factor β
- VEGF:
-
Vascular Endothelial Growth Factor
- VEGFR:
-
Vascular Endothelial Growth Factor Receptor
- WNT:
-
Wingless-related Integration Site
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Acknowledgments
This work has been funded by FEDER through the Competitiveness Factors Operational Programme (COMPETE), by National funds through the Foundation for Science and Technology (FCT) under the scope of the project UID/Multi/50026/2019; and by the project NORTE-01-0145-FEDER-000013, supported by the Northern Portugal Regional Operational Programme (NORTE 2020), under the Portugal 2020 Partnership Agreement, through the European Regional Development Fund (FEDER).
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Araújo-Silva, H., Correia-Pinto, J., Moura, R.S. (2020). Growth Factor Signaling in the Maintenance of Adult Lung Homeostasis. In: Silva, J.V., Freitas, M.J., Fardilha, M. (eds) Tissue-Specific Cell Signaling. Springer, Cham. https://doi.org/10.1007/978-3-030-44436-5_13
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DOI: https://doi.org/10.1007/978-3-030-44436-5_13
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