The BAF Complex Interacts with Pax6 in Adult Neural Progenitors to Establish a Neurogenic Cross-Regulatory Transcriptional Network

详细信息    查看全文

• 作者：Jovica Ninkovic ; Andrea Steiner-Mezzadri ; Melanie Jawerka ; Umut Akinci ; Giacomo Masserdotti ; Stefania Petricca ; Judith Fischer ; Alex ; er von?Holst ; Johanes Beckers ; Chichung?D. Lie ; David Petrik ; Erik Miller ; Jiong Tang ; Jiang Wu ; Veronique Lefebvre ; Jeroen Demmers ; Amelia Eisch ; Daniel Metzger ; Gerald Crabtree ; Martin Irmler ; et al.
• 刊名：Cell Stem Cell
• 出版年：2013
• 出版时间：3 October, 2013
• 年：2013
• 卷：13
• 期：4
• 页码：403-418
• 全文大小：6978 K

文摘

| Figures/TablesFigures/Tables | ReferencesReferences

Summary

Numerous transcriptional regulators of neurogenesis have been identified in the developing and adult brain, but how neurogenic fate is programmed at the epigenetic level remains poorly defined. Here, we report that the transcription factor Pax6 directly interacts with the Brg1-containing BAF complex in?adult neural progenitors. Deletion of either Brg1 or Pax6 in the subependymal zone (SEZ) causes the?progeny of adult neural stem cells to convert to the ependymal lineage within the SEZ while migrating neuroblasts convert to different glial lineages en route to or in the olfactory bulb (OB). Genome-wide analyses reveal that the majority of genes downregulated in the Brg1 null SEZ and OB contain Pax6 binding sites and are also downregulated in?Pax6 null SEZ and OB. Downstream of the Pax6-BAF complex, we find that Sox11, Nfib, and Pou3f4 form a transcriptional cross-regulatory network that drives neurogenesis and can?convert postnatal glia into neurons. Taken together, elements of our work identify a tripartite effector network activated by Pax6-BAF that programs neuronal fate.