Umbilical cord revisited: From Wharton's jelly myofibroblasts to mesenchymal stem cells

Simona Corrao, Giampiero La Rocca, Melania Lo Iacono, Tiziana Gorgun, Felicia Farina, Rita Anzalone

Research output: Contribution to journalReview article

35 Scopus citations

Abstract

The umbilical cord (UC) is an essential part of the placenta, contributing to foetal development by ensuring the blood flow between mother and foetus. The UC is formed within the first weeks of gestation by the enclosure of the vessels (one vein and two arteries) into a bulk of mucous connective tissue, named Wharton's jelly (WJ) and lined by the umbilical epithelium. Since their first identification, cells populating WJ were described as unusual fibroblasts (or myofibroblasts). Recent literature data further highlighted the functional interconnection between UC and the resident cells. The UC represents a reservoir of progenitor populations which are collectively grouped into MSCs (mesenchymal stem cells). Such cells have been sourced from each component of the cord, namely the sub-amnion layer, the WJ, the perivascular region, and the vessels. These cells mainly show adherence to the phenotype of adult MSCs (as bone marrow-derived ones) and can differentiate towards mature cell types belonging to all the three germ layers. In addition, cells from human UC are derived from an immunoprivileged organ, namely the placenta: in fact, its development and function depend on the elusion of the maternal immune response towards the semi-allogeneic embryo. This is reflected in the expression of immunomodulatory molecules by UC-derived MSCs. The present paper describes UC structural features and the cell types which can be derived, with a focus on their phenotype and the novel results which boosted the use of UC-derived cells for regenerative medicine applications.

Original languageEnglish (US)
Pages (from-to)1235-1244
Number of pages10
JournalHistology and Histopathology
Volume28
Issue number10
StatePublished - Oct 1 2013
Externally publishedYes

Keywords

  • Extracellular matrix
  • Immunomodulatory markers
  • Mesenchymal stem cells
  • Stromal myofibroblasts
  • Umbilical cord
  • Wharton's jelly

ASJC Scopus subject areas

  • Histology
  • Pathology and Forensic Medicine

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    Corrao, S., La Rocca, G., Lo Iacono, M., Gorgun, T., Farina, F., & Anzalone, R. (2013). Umbilical cord revisited: From Wharton's jelly myofibroblasts to mesenchymal stem cells. Histology and Histopathology, 28(10), 1235-1244.