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The novel steroidal alkaloids dendrogenin A and B promote proliferation of adult neural stem cells |
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| Authors: | Shaden A.M. Khalifa Philippe de Medina Anna Erlandsson Hesham R. El-Seedi Sandrine Silvente-Poirot Marc Poirot |
| Affiliation: | 1. Department of Neuroscience, Karolinska Institute, Stockholm, Sweden;2. Affichem, Toulouse, France;3. INSERM UMR 1037, Team “Sterol Metabolism and Therapeutic Innovations in Oncology”, Cancer Research Center of Toulouse, F-31052 Toulouse, France;4. University of Toulouse III, Toulouse, France;5. Institut Claudius Regaud, Toulouse, France;6. Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden;g Department of Medicinal Chemistry, Biomedical Centre, Uppsala University, Uppsala, Sweden |
| Abstract: | Dendrogenin A (DDA) and dendrogenin B (DDB) are new aminoalkyl oxysterols which display re-differentiation of tumor cells of neuronal origin at nanomolar concentrations. We analyzed the influence of dendrogenins on adult mice neural stem cell proliferation, sphere formation and differentiation. DDA and DDB were found to have potent proliferative effects in neural stem cells. Additionally, they induce neuronal outgrowth from neurospheres during in vitro cultivation. Taken together, our results demonstrate a novel role for dendrogenins A and B in neural stem cell proliferation and differentiation which further increases their likely importance to compensate for neuronal cell loss in the brain. |
| Keywords: | Neural stem cells Neurosteroids Oxysterols Dendrogenin |
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