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Abstract

Bioengineering

Imaging-Guided Bioreactor for Generating Bioengineered Airway Tissue

Published: April 6th, 2022

DOI:

10.3791/63544

1Department of Biomedical Engineering, Stevens Institute of Technology, 2Department of Biomedical Engineering, Columbia University, 3Department of Cell Biology, State University of New York Downstate Medical Center, 4Department of Cardiothoracic Surgery, Stanford University

Abstract

Repeated injury to airway tissue can impair lung function and cause chronic lung disease, such as chronic obstructive pulmonary disease. Advances in regenerative medicine and bioreactor technologies offer opportunities to produce lab-grown functional tissue and organ constructs that can be used to screen drugs, model disease, and engineer tissue replacements. Here, a miniaturized bioreactor coupled with an imaging modality that allows in situ visualization of the inner lumen of explanted rat trachea during in vitro tissue manipulation and culture is described. Using this bioreactor, the protocol demonstrates imaging-guided selective removal of endogenous cellular components while preserving the intrinsic biochemical features and ultrastructure of the airway tissue matrix. Furthermore, the delivery, uniform distribution, and subsequent prolonged culture of exogenous cells on the decellularized airway lumen with optical monitoring in situ are shown. The results highlight that the imaging-guided bioreactor can potentially be used to facilitate the generation of functional in vitro airway tissues.

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Keywords Imaging guided Bioreactor

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