TY - JOUR
T1 - Sheep CD34+ amniotic fluid cells have hematopoietic potential and engraft after autologous in utero transplantation
AU - Shaw, S. W.Steven
AU - Blundell, Michael P.
AU - Pipino, Caterina
AU - Shangaris, Panicos
AU - Maghsoudlou, Panagiotis
AU - Ramachandra, Durrgah L.
AU - Georgiades, Fanos
AU - Boyd, Michael
AU - Thrasher, Adrian J.
AU - Porada, Christopher D.
AU - Almeida-Porada, Graça
AU - Cheng, Po Jen
AU - David, Anna L.
AU - De Coppi, Paolo
PY - 2015/1/1
Y1 - 2015/1/1
N2 - 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
AB - 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
KW - Amniotic fluid stem cells
KW - Autologous transplantation
KW - Cell therapy
KW - Sheep CD34
UR - http://www.scopus.com/inward/record.url?scp=84919414285&partnerID=8YFLogxK
U2 - 10.1002/stem.1839
DO - 10.1002/stem.1839
M3 - Article
C2 - 25186828
AN - SCOPUS:84919414285
SN - 1066-5099
VL - 33
SP - 122
EP - 132
JO - Stem Cells
JF - Stem Cells
IS - 1
ER -