Respiratory Epithelial Cells
Respiratory Epithelial Cells - Related Videos
12:09
Establishing a Liquid-covered Culture of Polarized Human Airway Epithelial Calu-3 Cells to Study Host Cell Response to Respiratory Pathogens In vitro
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Cited by 25 •
2013
The findings and conclusions in this report are those of the authors and do not necessarily represent the views of the Centers for Disease Control and Prevention.
10:47
Isolation of Mouse Respiratory Epithelial Cells and Exposure to Experimental Cigarette Smoke at Air Liquid Interface
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Cited by 68 •
2011
Pulmonary epithelial cells can be isolated from the respiratory tract of mice and cultured at air-liquid interface as a model of differentiated respiratory epithelium. A protocol is described for isolating, culturing and exposing these cells to mainstream cigarette smoke, in order to study molecular responses to this environmental toxin.
10:38
Culturing of Human Nasal Epithelial Cells at the Air Liquid Interface
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Cited by 134 •
2013
Nasal epithelial cells, obtained through superficial scrape biopsy of human volunteers, are expanded and transferred onto tissue culture inserts. Upon reaching confluency, cells are grown at air liquid interface, yielding cultures of ciliated and non-ciliated cells. Differentiated nasal epithelial cell cultures provide viable experimental models for studying the respiratory mucosa.
03:15
Analyzing the Effects of Cigarette Smoke on Antimicrobial Defense in Lung Epithelial Cells
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2026
Source: Li, T., et al. Studying Effects of Cigarette Smoke on Pseudomonas Infection in Lung Epithelial Cells. J. Vis. Exp. (2020).This video demonstrates how cigarette smoke extract weakens antimicrobial defense in lung epithelial cells by reducing AMP production, leading to increased bacterial invasion. The procedure measures intracellular bacterial load to assess the impact of smoke exposure on host-pathogen interactions.
07:36
Contact-Free Co-Culture Model for the Study of Innate Immune Cell Activation During Respiratory Virus Infection
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Cited by 1 •
2021
This protocol details an investigation of the early interactions between virally infected nasal epithelial cells and innate cell activation. Individual subsets of immune cells can be distinguished based on their activation in response to viral infections. They can then be further investigated to determine their effects on early antiviral responses.
FAQs
Their selective barrier function helps regulate what crosses between inhaled air and lung tissue, rather than treating the airway as an unrestricted passage. This matters medically because epithelial disruption can be considered in relation to lung injury and disease. Studying barrier behavior therefore connects cell biology with clinical questions about respiratory protection.
Mucus traps particles, and ciliary beating moves that material through the airways. The significance lies in their coordination: secretion captures inhaled material while movement supports its clearance. Respiratory epithelial cell models can therefore help investigate how airway defenses relate to infection and inflammatory disorders such as asthma or chronic obstructive pulmonary disease.
The distal lung requires epithelial behavior suited to gas exchange, whereas airway regions emphasize barrier, mucus, and particle movement. This regional distinction helps explain why respiratory epithelial cells cannot be treated as a single uniform population in medical research. Models focused on different lung locations can ask more precise questions about lung function or injury.
Beyond physical defense, some cells contribute to innate immune defense and tissue repair. These roles connect epithelial biology to the response after infection or injury, not only to steady-state airway protection. In medicine, examining these functions can help frame research on inflammation, lung injury, and regenerative therapies.
Cultures and related models provide experimental systems for examining disease mechanisms and drug responses. They can also be used to study toxic exposures and regenerative therapies, allowing investigators to connect epithelial behavior with clinically relevant questions. Their value is broad: the same modeling approach can support work on airway disease, infection, injury, and repair.
For drug-response research, respiratory epithelial cell cultures offer a way to examine epithelial responses to drugs. Related models also support toxic-exposure studies, where investigators can focus on effects relevant to the lung. These applications complement disease-mechanism research by connecting cellular investigation with questions about treatment evaluation and respiratory safety.
In asthma, chronic obstructive pulmonary disease, infection, and lung injury, epithelial biology provides a cellular focus for medical investigation. The cells are also relevant to regenerative therapy research because tissue repair is one of their functions. Together, these connections make epithelial cultures and related models useful for linking mechanisms, exposures, treatment responses, and repair-oriented approaches.