TY - JOUR
A2 - Scacco, Salvatore
AU - Bergante, Sonia
AU - Creo, Pasquale
AU - Piccoli, Marco
AU - Ghiroldi, Andrea
AU - Menon, Alessandra
AU - Cirillo, Federica
AU - Rota, Paola
AU - Monasky, Michelle M.
AU - Ciconte, Giuseppe
AU - Pappone, Carlo
AU - Randelli, Pietro
AU - Anastasia, Luigi
PY - 2018
DA - 2018/08/23
TI - GM1 Ganglioside Promotes Osteogenic Differentiation of Human Tendon Stem Cells
SP - 4706943
VL - 2018
AB - Gangliosides, the sialic acid-conjugated glycosphingolipids present in the lipid rafts, have been recognized as important regulators of cell proliferation, migration, and apoptosis. Due to their peculiar localization in the cell membrane, they modulate the activity of several key cell receptors, and increasing evidence supports their involvement also in stem cell differentiation. In this context, herein we report the role played by the ganglioside GM1 in the osteogenic differentiation of human tendon stem cells (hTSCs). In particular, we found an increase of GM1 levels during osteogenesis that is instrumental for driving the process. In fact, supplementation of the ganglioside in the medium significantly increased the osteogenic differentiation capability of hTSCs. Mechanistically, we found that GM1 supplementation caused a reduction in the phosphorylation of the platelet-derived growth factor receptor-β (PDGFR-β), which is a known inhibitor of osteogenic commitment. These results were further corroborated by the observation that GM1 supplementation was able to revert the inhibitory effects on osteogenesis when the process was inhibited with exogenous PDGF.
SN - 1687-966X
UR - https://doi.org/10.1155/2018/4706943
DO - 10.1155/2018/4706943
JF - Stem Cells International
PB - Hindawi
KW -
ER -