Fibrotic Lung
Fibrotic Lung - Related Videos
10:42
Development of an Ethanol-induced Fibrotic Liver Model in Zebrafish to Study Progenitor Cell-mediated Hepatocyte Regeneration
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Cited by 8 •
2016
Sustained fibrosis with deposition of excessive extracellular matrix proteins leads to cirrhosis. Alcohol abuse is one of the main causes of severe liver disease. We established an ethanol-induced zebrafish fibrotic liver model to study the mechanisms and strategies of promoting hepatocyte regeneration upon alcohol-induced injury.
11:10
Micro-Mechanical Characterization of Lung Tissue Using Atomic Force Microscopy
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Cited by 127 •
2011
The stiffness of the extracellular matrix strongly influences multiple behaviors of adherent cells. Matrix stiffness varies spatially throughout a tissue, and undergoes modification in various disease conditions. Here we develop methods to characterize spatial variations in stiffness in normal and fibrotic mouse lung tissue using atomic force microscopy microindentation.
07:06
A Simple Method of Mouse Lung Intubation
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Cited by 50 •
2013
This paper describes a striaghforward and efficient method of intubating mice for pulmonary function measurements or pulmonary instillation, that allows the mice to recover and be studied at later times. The procedure involves an inexpensive fiberoptic light source that directly illuminates the trachea.
01:47
Lung Capacity
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2019
The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures. There are four defined lung volume measures: tidal volume, inspiratory reserve volume, expiratory reserve volume, and residual volume. Tidal volume is the amount of air inhaled and exhaled in a normal breath. Inspiratory...
05:35
Lung Instillation and Fixation: Introducing Liquid into the Trachea and Fixing Lungs to Measure the Fixed Lung Volume
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2023
This video describes a simple and reliable method of introducing liquid into the trachea for lung instillation, fixation, and lung volume measurement.
FAQs
Fibroblasts become important when lung repair is activated repeatedly or remains associated with persistent inflammation. Their activity contributes to abnormal deposition and remodeling of extracellular matrix proteins, including collagen, within the lung interstitium. This shifts repair away from restoration of normal tissue and toward progressive structural change, making fibroblast behavior a central focus of fibrotic lung biology.
Repeated injury or ongoing inflammation can keep repair-associated cells activated instead of allowing the tissue to return toward its prior organization. In fibrotic lung biology, this sustained repair response is linked to excessive extracellular matrix deposition and remodeling. Studying this transition helps explain how a normally protective healing process becomes dysregulated and contributes to worsening respiratory function.
Excessive remodeling of the extracellular matrix changes the organization and mechanical properties of the lung interstitium. Collagen accumulation is especially important because it contributes to scar formation and reduced tissue elasticity. These structural changes can interfere with the lung’s ability to support oxygen and carbon dioxide exchange, connecting microscopic remodeling with progressive respiratory symptoms.
Experimental models provide ways to examine how injury, inflammation, fibroblast activation, and extracellular matrix remodeling interact during lung scarring. They can be used to study changes in tissue structure and function, identify stages of dysregulated repair, and evaluate strategies intended to limit fibrosis. Their value lies in connecting cellular mechanisms with measurable respiratory outcomes.
Diagnostic approaches can help characterize the structural and functional consequences of lung scarring while supporting investigation of disease progression. In a research context, they may be used to relate extracellular matrix remodeling and altered tissue organization to impaired respiratory capacity. This information helps clarify how biological changes in the lung correspond to observable abnormalities and symptoms.
Therapeutic research generally focuses on limiting excessive fibrosis or preserving respiratory capacity rather than allowing dysregulated repair to continue unchecked. Understanding fibroblast activity, persistent inflammation, and extracellular matrix remodeling helps identify biological processes that may be targeted. These efforts are intended to reduce harmful structural change and maintain lung function as scarring progresses.