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Related Concept Videos

Trachea01:22

Trachea

6.2K
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...
6.2K

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Related Experiment Video

Updated: May 5, 2026

Seeding and Implantation of a Biosynthetic Tissue-engineered Tracheal Graft in a Mouse Model
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Seeding and Implantation of a Biosynthetic Tissue-engineered Tracheal Graft in a Mouse Model

Published on: April 1, 2019

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Tissue engineering in the trachea.

Koji Kojima1, Charles A Vacanti

  • 1Laboratory for Tissue Engineering and Regenerative Medicine Department of Anesthesiology, Harvard Medical School, Brigham and Women's Hospital, 75 Francis St., Thorn 703, Boston, Massachusetts, 02115.

Anatomical Record (Hoboken, N.J. : 2007)
|December 3, 2013
PubMed
Summary
This summary is machine-generated.

Tissue engineering aims to create functional tracheal replacements using cartilage. While promising, current autologous tissue-engineered trachea (TET) models show insufficient structural support in vivo, highlighting challenges for clinical application.

Keywords:
stem celltissue engineeringtrachea

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Area of Science:

  • Regenerative Medicine
  • Biomaterials Science
  • Surgical Innovation

Background:

  • Tracheal defects often require complex reconstruction.
  • Current tissue engineering strategies focus on autologous tissue-engineered trachea (TET) development.
  • Significant challenges remain in achieving functional and durable tracheal replacements.

Purpose of the Study:

  • To review current advancements in autologous tissue-engineered trachea (TET) generation.
  • To evaluate the efficacy of various biomaterial and cell sources for tracheal cartilage formation.
  • To identify limitations and future potential of TET for clinical application.

Main Methods:

  • Review of studies utilizing diverse biomaterials and cell sources for TET.
  • Biomechanical assessment of engineered tracheal constructs in preclinical models.
  • Analysis of clinical reports on cell seeding in decellularized tissues.

Main Results:

  • Engineered cartilage demonstrated excellent stiffness in nude models.
  • Autologous TET in sheep models exhibited insufficient structural integrity, leading to collapse.
  • The precise mechanisms underlying tissue-engineered trachea function remain largely undetermined.

Conclusions:

  • Current autologous tissue-engineered trachea (TET) technology is not yet sufficient for functional recovery in patients with severe tracheal disease.
  • Further research is needed to elucidate working mechanisms and improve structural support.
  • Tissue engineering holds significant future potential for developing viable tracheal replacements.