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Negative neuronal differentiation of human adipose-derived stem cell clones
María I Arribas1, Ana B Ropero, Juan A Reig
1Biochemistry & Cell Therapy Unit, Institute of Bioengineering, University Miguel Hernandez, 03202-Elche, Alicante, Spain.
Aims:
Adipose mesenchymal stem cells are a heterogeneous population. Therefore, the question posed in this study is whether the heterogenic differentiation potential exhibited by the different clones toward mesodermic lineages can be extended to nonmesodermic lineages, such as the neuroectoderm.
Materials & Methods:
Different single cell clones of human adipose mesenchymal stem cells from the same donor were isolated. Neuronal plasticity of the clones was assessed according to the pattern DNA methylation, gene expression and intracellular calcium responses.
Results:
Under neurogenic culture conditions, clones presented variable expression of neuronal-specific genes, but still expressed osteogenic markers. No calcium response was exhibited in response to KCl incubation. The DNA methylation profile presented a very similar pattern in neuroectoderm gene promoters.
Conclusions:
Data indicate that there are no significant differences between the undifferentiated and supposedly neuronal-differentiated mesenchymal cells.
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