Related Experiment Video
Updated: May 23, 2026
06:27
iPSC-Derived Epithelial, Mesenchymal, Endothelial, and Immune Cell Co-Culture to Model Airway Barrier Integrity in Lung Health and Disease
Published on: December 6, 2024
Engineering airway epithelium.
John P Soleas1, Ana Paz, Paula Marcus
1Latner Thoracic Surgery Research Laboratories, McEwen Centre for Regenerative Medicine, Toronto General Hospital, Toronto, ON, Canada M5G 2C4.
Journal of Biomedicine & Biotechnology
|April 24, 2012
Summary
Airway epithelium regeneration faces challenges due to slow repair. Tissue engineering offers tools to overcome these barriers and create artificial airway epithelium for improved function.
Area of Science:
- Pulmonary Medicine
- Regenerative Medicine
- Tissue Engineering
Background:
- The airway epithelium forms a critical innate immune barrier and maintains mucociliary function.
- Despite its regenerative potential, airway epithelial repair is often slow and inefficient.
- Dedifferentiation and slow turnover hinder complete regeneration and functional recovery.
Purpose of the Study:
- To explore the regenerative potential of airway epithelium.
- To identify barriers to effective airway regeneration.
- To highlight tissue engineering strategies for artificial airway epithelium creation.
Main Methods:
- Review of native airway epithelium structure, function, and repair mechanisms.
- Analysis of existing tissue engineering tools and signals.
- Discussion of how these tools can address regeneration challenges.
Main Results:
- Native airway epithelium possesses inherent regenerative capabilities.
- Slow epithelial turnover and dedifferentiation impede functional recovery.
- Tissue engineering provides manipulable signals to enhance regeneration.
Conclusions:
- Understanding native airway epithelium biology is key to improving regeneration.
- Tissue engineering offers promising solutions for creating functional artificial airway epithelium.
- Targeted application of tissue engineering signals can overcome regeneration barriers.
Related Concept Videos
01:30Classification of Epithelial Tissues: Simple Epithelium
Simple epithelium consists of a single layer of cells that lines body cavities and blood vessels. The shape of the cells in the epithelium reflects the function of the tissue. Cells in simple squamous epithelium appear as thin scales with flat, elliptical nuclei that mirror the form of the cell.
Because of the thinness of the cells, simple squamous epithelium is present where the rapid passage of chemical compounds is observed. For example, the endothelium that lines the capillaries and vessels...
Because of the thinness of the cells, simple squamous epithelium is present where the rapid passage of chemical compounds is observed. For example, the endothelium that lines the capillaries and vessels...
01:26Alveoli and Alveolar Ducts
The respiratory zone of the human body, which stands in contrast to the conducting zone, comprises the structures that actively participate in the exchange of gases. The initiation of this zone is marked by the terminal bronchioles converging into respiratory bronchioles, the tiniest bronchiole classification. The respiratory bronchioles give way to the alveolar ducts that opens into a congregation of alveoli. Actively involved in gas exchange, alveoli resemble tiny sacs similar to clusters of...
01:23Epithelial Tissues and Their Functions
Epithelial tissues are large sheets of cells covering all of the surfaces of the body. These surfaces can be internal or external, for example, skin, airways, the digestive tract, the urinary system, and the reproductive system. Hollow organs and body cavities that do not connect to the body's exterior, including blood vessels and serous membranes, are lined by epithelial tissue known as the endothelium.
Epithelial tissues provide the body's first line of protection from physical, chemical, and...
Epithelial tissues provide the body's first line of protection from physical, chemical, and...
01:28Asthma I: Introduction
Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...
01:29Classification of Epithelial Tissues: Stratified Epithelium
Stratified epithelium consists of several stacked layers of cells. They provide the durability to withstand constant physical and chemical attacks. Stratified epithelium is named after the shape of the most apical layer of cells. Stratified squamous epithelium is the most common type found in the human body. In this tissue, the apical cells are squamous, whereas the basal layer contains either columnar or cuboidal cells. The basal cells divide to form new daughter cells, which gradually become...
01:22Trachea
The trachea, commonly known as the windpipe, is a vital part of the human respiratory system. It serves as a passageway for air to travel between the larynx and the bronchi, allowing oxygen to reach the lungs. Let's explore its anatomical features, dimensions, layers of the tracheal wall, associated muscles, and the functions of its parts.
Anatomical Features:
Location: About half of the trachea is situated in the neck, anterior to the esophagus, and extends from the larynx (at the level of the...
Anatomical Features:
Location: About half of the trachea is situated in the neck, anterior to the esophagus, and extends from the larynx (at the level of the...