期刊
GENETICS
卷 209, 期 2, 页码 367-380出版社
GENETICS SOCIETY AMERICA
DOI: 10.1534/genetics.117.300167
关键词
trachea; development; tubulogenesis; branching; physiology; FlyBook
资金
- Japan Society for the Promotion of Science [22111007, 15H01501, 15618760, 15616376, 17904917]
- Precursory Research for Innovative MEdical care of the Japan Agency for Medical Research and Development [JP17gm5810020]
- Naito Foundation
- Keihanshin Consortium for Fostering the Next Generation of Global Leaders in Research
- Grants-in-Aid for Scientific Research [15H01501, 15H05597] Funding Source: KAKEN
The tracheal system of insects is a network of epithelial tubules that functions as a respiratory organ to supply oxygen to various target organs. Target-derived signaling inputs regulate stereotyped modes of cell specification, branching morphogenesis, and collective cell migration in the embryonic stage. In the postembryonic stages, the same set of signaling pathways controls highly plastic regulation of size increase and pattern elaboration during larval stages, and cell proliferation and reprograming during metamorphosis. Tracheal tube morphogenesis is also regulated by physicochemical interaction of the cell and apical extracellular matrix to regulate optimal geometry suitable for air flow. The trachea system senses both the external oxygen level and the metabolic activity of internal organs, and helps organismal adaptation to changes in environmental oxygen level. Cellular and molecular mechanisms underlying the high plasticity of tracheal development and physiology uncovered through research on Drosophila are discussed.
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