Sheep CD34+ amniotic fluid cells have hematopoietic potential and engraft after autologous in utero transplantation

S. W.Steven Shaw, Michael P. Blundell, Caterina Pipino, Panicos Shangaris, Panagiotis Maghsoudlou, Durrgah L. Ramachandra, Fanos Georgiades, Michael Boyd, Adrian J. Thrasher, Christopher D. Porada, Graça Almeida-Porada, Po Jen Cheng, Anna L. David, Paolo De Coppi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Unmatched allogeneic in utero stem cell transplantation (IUSCT) produces poor engraftment unless the fetus has congenital immunodeficiency, probably because of maternal and fetal immune responses to injected cells. We studied the functional hematopoietic potential of transduced green fluorescent protein (GFP+) sheep amniotic fluid (AF) stem cells, before and after autologous IUSCT. CD34+ cells were selected from first trimester sheep AF, transduced overnight, and injected intravenously into NOD-SCID-gamma (NSG) mice. At 3 months, primary recipient bone marrow (BM) was injected into secondary NSG recipients. GFP+ cells were detected in the hematopoietic organs and peripheral blood of primary and secondary recipients at 3 months. Autologous IUSCT (transduced GFP+CD34+AF) was performed in fetal sheep. Six months postnatally, lamb BM was injected into secondary NSG recipients. GFP+ cells were detected in the peripheral blood of primary and secondary recipients. This confirms the hematopoietic potential of AF stem cells supporting the concept of autologous IUSCT to treat congenital hematopoietic disease. Stem Cells 2015;33:122-132

Original languageEnglish
Pages (from-to)122-132
Number of pages11
JournalStem Cells
Volume33
Issue number1
Early online date3 Sept 2014
DOIs
Publication statusPublished - 1 Jan 2015

Keywords

  • Amniotic fluid stem cells
  • Autologous transplantation
  • Cell therapy
  • Sheep CD34

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