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Related Experiment Videos

The placenta as a cell source in fetal tissue engineering.

Amir Kaviani1, Tjörvi E Perry, Carmen M Barnes

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

Journal of Pediatric Surgery
|June 22, 2002
PubMed
Summary

The placenta yields nontrophoblastic, mesenchymal stem cells that proliferate rapidly, similar to fetal cells. These placental cells can be used to engineer fetal tissue constructs, offering a practical cell source.

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Area of Science:

  • Biomedical Engineering
  • Regenerative Medicine
  • Cell Biology

Background:

  • Tissue engineering aims to create functional biological substitutes.
  • The placenta is a potential source for cells with regenerative capabilities.
  • Identifying and characterizing placental cells is crucial for tissue engineering applications.

Purpose of the Study:

  • To determine if fetal tissue constructs can be engineered from placental cells.
  • To investigate the characteristics and proliferation rates of cells derived from the human placenta.
  • To assess the suitability of placental cells for scaffold integration in tissue engineering.

Main Methods:

  • Isolation and expansion of distinct placental cell subpopulations.
  • Immunofluorescent staining to determine cell lineage and mesenchymal origin.

Related Experiment Videos

  • Cell proliferation assays and comparison with amniotic fluid-derived cells.
  • Seeding expanded cells onto polyglycolic acid/poly-4-hydroxybutyrate scaffolds for construct formation.
  • Microscopic analysis of cell-scaffold interaction.

    • Main Results:

    • Placental cells exhibited a nontrophoblastic, mesenchymal immunocytochemical profile.
    • Proliferation rates of placental cells were comparable to fetal mesenchymal amniocytes and higher than adult cells.
    • Engineered constructs showed dense cell layers firmly attached to scaffolds with no cell death.

    Conclusions:

    • Consistent isolation of nontrophoblastic, mesenchymal cells from the human placenta is feasible.
    • Placental-derived mesenchymal cells demonstrate robust proliferation in vitro.
    • The placenta serves as a practical and valuable source for engineering fetal tissue constructs.