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Related Experiment Videos

Videofetoscopically assisted fetal tissue engineering: skin replacement

D O Fauza1, S J Fishman, K Mehegan

  • 1Harvard Center for Minimally Invasive Surgery and the Department of Surgery, Children's Hospital and Harvard Medical School, Boston, Massachusetts 02115, USA.

Journal of Pediatric Surgery
|March 14, 1998
PubMed
Summary

This study introduces fetal tissue engineering for neonatal surgery, creating expanded autologous skin grafts for birth reconstruction. Engineered fetal skin promotes faster, more organized wound healing in newborns.

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Area of Science:

  • Regenerative Medicine
  • Fetal Surgery
  • Tissue Engineering

Background:

  • Congenital anomalies often require surgical repair in neonates, limited by insufficient tissue availability.
  • Current treatments face challenges due to the lack of adequate autologous tissue for neonatal reconstructive surgery.

Purpose of the Study:

  • To introduce and evaluate a novel method of fetal tissue engineering for perinatal surgery.
  • To assess the in vitro expansion and in vivo performance of engineered fetal skin grafts.
  • To investigate the impact of tissue engineering on fetal skin cells.

Main Methods:

  • Videofetoscopic harvesting of fetal lamb skin (1.5 x 1.5 cm).
  • In vitro cultivation and expansion of fetal keratinocytes and dermal fibroblasts for 45-50 days.

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  • Seeding cells onto biodegradable scaffolds and implantation into neonatal lambs post-delivery.

    • Main Results:

    • Engineered fetal grafts demonstrated significantly faster epithelization than acellular controls.
    • Higher epidermal organization and reduced dermal scarring were observed with engineered grafts.
    • Fetal dermal fibroblasts exhibited accelerated in vitro multiplication rates.

    Conclusions:

    • Videofetoscopically assisted fetal tissue engineering is a viable approach for neonatal reconstructive surgery.
    • Engineered autologous fetal skin provides superior healing outcomes for neonatal skin defects.
    • This technique holds promise for treating congenital conditions like body wall defects.