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Abdominal wall regenerative medicine for a large defect using tissue engineering: an experimental study.

Masaya Suzuhigashi1, Tatsuru Kaji1, Kazuhiko Nakame1

  • 1Department of Pediatric Surgery, Research Field in Medical and Health Sciences, Medical and Dental Area, Research and Education Assembly, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, 890-8520, Japan.

Pediatric Surgery International
|August 1, 2016
PubMed
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Tissue engineering using hybrid scaffolds with bone marrow liquid (HSBM) promoted muscle regeneration in rat abdominal wall defects. This approach may offer a promising solution for abdominal wall reconstruction.

Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Tissue Engineering

Background:

  • Large abdominal wall defects present significant clinical challenges.
  • Current treatment options for abdominal wall reconstruction are limited.
  • Optimizing tissue engineering strategies is crucial for improved outcomes.

Purpose of the Study:

  • To optimize tissue engineering therapy for muscle constructs.
  • To evaluate the efficacy of different scaffold materials in a rat model.
  • To investigate the potential of hybrid scaffolds with bone marrow liquid for abdominal wall repair.

Main Methods:

  • Created experimental abdominal wall defects in Wister rats.
  • Utilized three groups: collagen sponge (CS), hybrid scaffold (HS), and hybrid scaffold with bone marrow liquid (HSBM).
Keywords:
Bone marrow liquidGastroschisisOmphalocelePoly L-lactideRegenerative medicineTissue engineering

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  • Assessed outcomes at 4, 8, and 16 weeks using histological and immunohistochemical analyses.

    • Main Results:

    • The collagen sponge group developed abdominal hernias.
    • Hybrid scaffolds (HS and HSBM) prevented hernias and showed vascular formation.
    • Muscle tissue regeneration was exclusively observed in the hybrid scaffold with bone marrow liquid (HSBM) group.

    Conclusions:

    • Hybrid scaffolds, particularly with bone marrow liquid (HSBM), demonstrate superior performance over collagen sponges.
    • Muscle tissue regeneration is a key finding in the HSBM group, indicating its potential for abdominal wall reconstruction.
    • The combination of scaffold, cells, and growth factors is essential for effective biomaterial development.