| First Author | Chen YH | Year | 2015 |
| Journal | Genes Dev | Volume | 29 |
| Issue | 16 | Pages | 1677-82 |
| PubMed ID | 26272820 | Mgi Jnum | J:226180 |
| Mgi Id | MGI:5696460 | Doi | 10.1101/gad.261677.115 |
| Citation | Chen YH, et al. (2015) Neurofibromatosis-1 regulation of neural stem cell proliferation and multilineage differentiation operates through distinct RAS effector pathways. Genes Dev 29(16):1677-82 |
| abstractText | Neurofibromatosis type 1 (NF1) is a common neurodevelopmental disorder caused by impaired function of the neurofibromin RAS regulator. Using a combination of Nf1 genetically engineered mice and pharmacological/genetic inhibition approaches, we report that neurofibromin differentially controls neural stem cell (NSC) proliferation and multilineage differentiation through the selective use of the PI3K/AKT and RAF/MEK pathways. While PI3K/AKT governs neurofibromin-regulated NSC proliferation, multilineage differentiation is MEK-dependent. Moreover, whereas MEK-regulated multilineage differentiation requires Smad3-induced Jagged-1 expression and Notch activation, MEK/Smad3-regulated Hes1 induction is only responsible for astrocyte and neuronal differentiation. Collectively, these findings establish distinct roles for the RAS effector pathways in regulating brain NSC function. |
