Title:
Spindle Shaped Human Mesenchymal Stem/Stromal Cells from Amniotic Fluid Promote Neovascularization
Languages of Item:
English
Abstract:
Human amniotic fluid obtained at amniocentesis, when cultured, generates at least two morphologically distinct mesenchymal stem/stromal cell (MSC) subsets. Of these, the spindle shaped amniotic fluid MSCs (SS-AF-MSCs) contain multipotent cells with enhanced adipogenic, osteogenic and chondrogenic capacity. Here, we demonstrate, for the first time, the capacity of these SS-AF-MSCs to support neovascularization by umbilical cord blood (UCB) endothelial colony forming cell (ECFC) derived cells in both in vitro and in vivo models. Interestingly, although the kinetics of vascular tubule formation in vitro were similar when the supporting SS-AF-MSCs were compared with the best vasculogenic supportive batches of bone marrow MSCs (BMSCs) or human dermal fibroblasts (hDFs), SS-AF-MSCs supported vascular tubule formation in vivo more effectively than BMSCs. In NOD/SCID mice, the human vessels inosculated with murine vessels demonstrating their functionality. Proteome profiler array analyses revealed both common and distinct secretion profiles of angiogenic factors by the SS-AF-MSCs as opposed to the hDFs and BMSCs. Thus, SS-AF-MSCs, which are considered to be less mature developmentally than adult BMSCs, and intermediate between adult and embryonic stem cells in their potentiality, have the additional and very interesting potential of supporting increased neovascularisation, further enhancing their promise as vehicles for tissue repair and regeneration. © 2013 Roubelakis et al.
Authors:
Roubelakis, M.G.
Tsaknakis, G.
Pappa, K.I.
Anagnou, N.P.
Watt, S.M.
Keywords:
gelatinase B; interleukin 8; platelet derived growth factor AB; platelet derived growth factor BB; proteome, amniotic fluid cell; angiogenesis; animal experiment; animal tissue; article; colony forming cell; controlled study; embryonic stem cell; hematopoietic stem cell; human; human cell; in vitro study; in vivo study; mesenchymal stem cell; mesenchymal stroma cell; mouse; nonhuman; protein function; skin fibroblast; spindle cell; tissue repair; umbilical cord blood, Amniotic Fluid; Cell Proliferation; Culture Media, Conditioned; Fluorescent Antibody Technique; Humans; Immunohistochemistry; Immunophenotyping; Mesenchymal Stromal Cells; Neovascularization, Physiologic, Murinae; Mus
Official URL (Publisher):
DOI:
10.1371/journal.pone.0054747
