Details

Autor(en) / Beteiligte

• Jiang, Huihui
• Lv, Xiaohui
• Lei, Xuepei
• Yang, Ying
• Yang, Xin
• Jiao, Jianwei

Titel

Immune Regulator MCPIP1 Modulates TET Expression during Early Neocortical Development

Ist Teil von

• Stem cell reports, 2016-09, Vol.7 (3), p.439-453

Ort / Verlag

United States: Elsevier Inc

Erscheinungsjahr

2016

Link zum Volltext

Quelle

EZB-FREE-00999 freely available EZB journals

Beschreibungen/Notizen

• MCPIP1 is a recently identified immune regulator that plays critical roles in preventing immune disorders, and is also present in the brain. Currently an unresolved question remains as to how MCPIP1 performs its non-immune functions in normal brain development. Here, we report that MCPIP1 is abundant in neural progenitor cells (NPCs) and newborn neurons during the early stages of neurogenesis. The suppression of MCPIP1 expression impairs normal neuronal differentiation, cell-cycle exit, and concomitant NPC proliferation. MCPIP1 is important for maintenance of the NPC pool. Notably, we demonstrate that MCPIP1 reduces TET (TET1/TET2/TET3) levels and then decreases 5-hydroxymethylcytosine levels. Furthermore, the MCPIP1 interaction with TETs is involved in neurogenesis and in establishing the proper number of NPCs in vivo. Collectively, our findings not only demonstrate that MCPIP1 plays an important role in early cortical neurogenesis but also reveal an unexpected link between neocortical development, immune regulators, and epigenetic modification. •MCPIP1 is abundant during early neocortical development•MCPIP1 suppression impairs normal neocortical neurogenesis•MCPIP1 directly targets Tets and regulates TET expression levels Jiao and colleagues show that the immune regulator MCPIP1 has a dramatic expression pattern during early neocortical development. MCPIP1 regulates various aspects of neurogenesis. Notably, MCPIP1 directly targets Tets, and represses TET and 5hmC expression levels. Importantly, the interaction of MCPIP1 and TETs is involved in neurogenesis and NPC pool maintenance.