Human bone marrow stroma cells display certain neural characteristics and integrate in the subventricular compartment after injection into the liquor system

European Journal of Cell Biology
Stefan ArnholdKlaus Addicks

Abstract

Because the neural differentiation capacity of bone marrow stromal cells (BMSCs) is still a matter of controversial debate, we performed a thorough investigation into the differentiation capacity of human BMSCs and examined their therapeutic potency. BMSCs were isolated from the femur and kept in cell cultures with various cultivation protocols being applied. In standard culture conditions using a fetal calf serum-enriched medium, while not exhibiting a neural phenotype, the majority of cells expressed a variety of neuronal marker proteins as well as the astrocyte marker GFAP. Only a minority of stem cells expressed nestin, a marker for neural precursor cells. Cultivation in serum-free medium supplemented with specific growth factors resulted in a markedly higher percentage of nestin-positive cells. To establish the therapeutic potency of bone marrow-derived cells, the synthesis of neurotrophic factors such as NGF, BDNF and GDNF was analyzed under non-stimulating standard culture conditions as well as after a neural selection procedure. The therapeutic potency of BMSCs was further examined with regard to their migratory potential in vitro and after transplantation in vivo. After stereotactic engraftment into the lateral ventric...Continue Reading

Citations

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