Tracheal Brush Cells
Tracheal Brush Cells - Related Videos
08:35
Examination of Drosophila Larval Tracheal Terminal Cells by Light Microscopy
0 Views •
Cited by 11 •
2013
Here, we present a method for light microscopy analysis of tracheal terminal cells in Drosophila larvae. This method allows for quick examination of branch and lumen morphology in whole animals and would be useful for analysis of individual mutants or screens for mutations affecting terminal cell development.
02:24
Tracheal Cannulation in Rabbit Model: A Procedure to Insert Tracheal Cannula into the Rabbit Trachea
0 Views •
2025
This video demonstrates the surgical creation of an opening in the rabbit trachea to insert a tracheal cannula for artificially ventilating the lungs.
04:50
Direct Tracheal Instillation of Solutes into Mouse Lung
0 Views •
Cited by 54 •
2010
Intratracheal instillations deliver solutes directly into the lungs. This procedure targets the delivery of the instillate into the distal regions of the lung, and is therefore often incorporated in studies aimed at studying alveoli. We provide a detailed survival protocol for performing intratracheal instillations in mice.
10:20
In vitro Measurements of Tracheal Constriction Using Mice
0 Views •
Cited by 15 •
2012
Transgenic mice have been extremely useful in ascribing physiological function to genes. As such, research in general, and functional studies of airway, in particular, have undergone a remarkable shift toward murine models. Here we provide protocols for in vitro trachea constriction studies to evaluate smooth muscle function in murine airway.
10:25
Isolation and Quantitative Evaluation of Brush Cells from Mouse Tracheas
0 Views •
Cited by 9 •
2019
Brush cells are rare cholinergic chemosensory epithelial cells found in the naïve mouse trachea. Due to their limited numbers, ex vivo evaluation of their functional role in airway immunity and remodeling is challenging. We describe a method for isolation of tracheal brush cells by flow cytometry.
FAQs
Detection begins when apical microvilli encounter inhaled irritants or microbial products. Taste receptors participate in recognizing these cues, while the ion channel TRPM5 helps transmit the resulting chemosensory signal within the cell. Acetylcholine then provides a communication route to neighboring epithelial and immune cells, connecting detection with local airway defense.
Apical microvilli provide the surface through which these cells sample inhaled substances. That positioning supports detection of irritants and microbial products at the epithelial boundary. Once a cue is recognized, downstream communication can influence mucus secretion, airway reflexes, and inflammatory responses, linking environmental sampling to several coordinated components of airway protection.
Acetylcholine serves as a signaling molecule that helps brush cells communicate with neighboring epithelial and immune cells after environmental detection. Through this local communication, the initial cue can be associated with changes in mucus secretion, airway reflexes, or inflammatory activity. In infection research, that connection matters because epithelial sensing may shape innate defense recruitment or activation.
Brush-cell signaling is relevant to more than one defensive output. Signals associated with detected irritants or microbial products may affect airway reflexes and mucus secretion, while related communication with epithelial and immune cells may influence inflammation. Studying these linked responses helps distinguish environmental detection from the downstream mechanisms that organize local protection.
Research focuses on whether brush-cell activity is associated with mucus secretion, airway reflexes, inflammatory responses, and signals that recruit or activate innate immune defenses. These outcomes connect cellular chemosensation to measurable features of respiratory protection. Examining them can help clarify how the airway recognizes pathogen-related material while maintaining barrier function.
These cells provide a potential link between sensing microbial products at the epithelial surface and mobilizing local innate defenses. Their signaling can communicate with immune and epithelial neighbors, while associated outputs include inflammation, mucus secretion, and airway reflexes. Consequently, brush-cell research offers a way to study how pathogen detection and barrier maintenance are coordinated in the respiratory tract.
Studies can examine the relationship among taste-receptor signaling, TRPM5, acetylcholine, and downstream airway responses. This combination places molecular detection alongside tissue-level outcomes, including innate-defense recruitment or activation and inflammatory change. Such analysis is useful for connecting a specialized epithelial sensing pathway to broader questions about respiratory infection and local immune regulation.