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Imaging-Guided Bioreactor for Generating Bioengineered Airway Tissue
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Developing a tissue-engineered model of the human bronchiole.

Cheryl Miller1, Steven George, Laura Niklason

  • 1Department of Biomedical Engineering, St. Louis University, St. Louis, MO 63103, USA. cmille42@slu.edu

Journal of Tissue Engineering and Regenerative Medicine
|July 7, 2010
PubMed
Summary
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Scientists developed a novel tissue-engineered human bronchiole model to study airway remodeling in chronic respiratory diseases like asthma. This biomimetic system allows for controlled investigation of cellular interactions and disease progression.

Area of Science:

  • Biomedical Engineering
  • Respiratory Medicine
  • Cell Biology

Background:

  • Airway remodeling, characterized by inflammation and repair, significantly alters airway structure and function in chronic respiratory diseases such as asthma.
  • Existing models often fail to fully replicate the complex cellular interactions and anatomical features of human airways.
  • Novel tools are needed to accurately mimic human physiology for studying airway remodeling.

Purpose of the Study:

  • To develop and characterize a novel, tissue-engineered human bronchiole model.
  • To investigate the initiation and progression of airway remodeling using this biomimetic system.
  • To provide a controlled environment for studying cellular signaling and matrix interactions in airway disease.

Main Methods:

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Last Updated: Jun 11, 2026

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11:01

Imaging-Guided Bioreactor for Generating Bioengineered Airway Tissue

Published on: April 6, 2022

Primary Human Bronchial Epithelial Cells Grown from Explants
14:32

Primary Human Bronchial Epithelial Cells Grown from Explants

Published on: March 26, 2010

Establishing Human Lung Organoids and Proximal Differentiation to Generate Mature Airway Organoids
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Establishing Human Lung Organoids and Proximal Differentiation to Generate Mature Airway Organoids

Published on: March 23, 2022

  • Engineered cylindrical bronchioles using primary human lung cells (fibroblasts, airway smooth muscle cells, small airway epithelial cells) and extracellular matrices within a unique bioreactor system.
  • Applied radial distension via cylindrical geometry and an air-liquid interface to mimic in vivo conditions.
  • Optimized cell density, extracellular matrix concentration, and media composition; assessed phenotypic stability and quiescence using immunohistochemistry and protein expression.

    • Main Results:

    • Successfully fabricated stable, cylindrical human bronchioles with controlled cellular composition and proximity.
    • Demonstrated phenotypic stability and achieved cell quiescence after implementing the air interface.
    • Established a repeatable fabrication timeline, providing insights into tissue contraction and cell-seeding duration.

    Conclusions:

    • The developed tissue-engineered bronchiole model accurately mimics in vivo geometrical dimensions and cellular relationships.
    • This novel model offers a powerful platform for studying cell-cell interactions and airway remodeling events in a controlled setting.
    • It represents a significant advancement for investigating chronic respiratory diseases like asthma.