Tissue engineering airway mucosa: a systematic review.

Area of Science:

• Regenerative Medicine
• Biomaterials Science
• Tissue Engineering

Background:

• Current treatments for hollow organ conditions like stenosis are inadequate.
• Tissue-engineered implants offer a potential solution but face challenges with mucosalization post-transplantation.
• Regenerating airway mucosa is crucial for protecting against infection and facilitating healing.

Purpose of the Study:

• To systematically review literature on tissue-engineered airway mucosa.
• To assess the success and potential applications of this technology in airway regenerative medicine.
• To identify future research directions for therapeutic and commercial advancement.

Main Methods:

• Systematic literature review of Medline and Embase databases.
• Included original studies on airway mucosal regeneration in animal models and humans.
• Search terms focused on "tissue engineering" and "mucosa" or "mucous membrane."

Main Results:

• Seventeen studies met inclusion criteria, with 13 in animal models and 4 in humans.
• An intact mucosal layer is vital for infection protection; fibroblasts may aid epithelial regeneration.
• Various scaffold materials were used, with no single material demonstrating clear superiority.

Conclusions:

• Significant gaps exist in the current literature on tissue-engineered airway mucosa.
• Future research should prioritize epithelial tracking and understanding the extracellular environment's role.
• Optimizing these areas is key to maximizing the therapeutic and commercial potential of airway regenerative medicine.