First Author | Ribeiro D | Year | 2016 |
Journal | Cell Rep | Volume | 16 |
Issue | 4 | Pages | 979-993 |
PubMed ID | 27396325 | Mgi Jnum | J:238681 |
Mgi Id | MGI:5823346 | Doi | 10.1016/j.celrep.2016.06.052 |
Citation | Ribeiro D, et al. (2016) Regulation of Nuclear Hormone Receptors by MYCN-Driven miRNAs Impacts Neural Differentiation and Survival in Neuroblastoma Patients. Cell Rep 16(4):979-93 |
abstractText | MYCN amplification and MYC signaling are associated with high-risk neuroblastoma with poor prognosis. Treating these tumors remains challenging, although therapeutic approaches stimulating differentiation have generated considerable interest. We have previously shown that the MYCN-regulated miR-17 approximately 92 cluster inhibits neuroblastoma differentiation by repressing estrogen receptor alpha. Here, we demonstrate that this microRNA (miRNA) cluster selectively targets several members of the nuclear hormone receptor (NHR) superfamily, and we present a unique NHR signature associated with the survival of neuroblastoma patients. We found that suppressing glucocorticoid receptor (GR) expression in MYCN-driven patient and mouse tumors was associated with an undifferentiated phenotype and decreased survival. Importantly, MYCN inhibition and subsequent reactivation of GR signaling promotes neural differentiation and reduces tumor burden. Our findings reveal a key role for the miR-17 approximately 92-regulated NHRs in neuroblastoma biology, thereby providing a potential differentiation approach for treating neuroblastoma patients. |