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2017 Fiscal Year Final Research Report

Elucidation of molecular mechanisms underlying a novel Olig2 binding factor-mediated oligodendrocyte differentiation

Research Project

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Project/Area Number 15K18373
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Neurochemistry/Neuropharmacology
Research InstitutionNiigata University

Principal Investigator

Bizen Norihisa  新潟大学, 医歯学系, 助教 (40751053)

Project Period (FY) 2015-04-01 – 2018-03-31
Keywordsオリゴデンドロサイト / Olig2 / 転写因子 / p53 / 神経幹細胞 / ノックアウトマウス
Outline of Final Research Achievements

We identified a novel Olig2 binding factor, Obp2 and analyzed central nervous system-specific Obp2 mutant mice. These mice exhibited severe loss of oligodendrocyte differentiation without motor neuron defects.We further found that Obp2 contributed to the maintenance of Olig2-positive neural precursor cells and oligodendrocyte progenitor cells through the regulation of DNA damage-p53 axis in central nervous system.
We also demonstrated that OIF, which is a truncated form of Obp2 strongly induced the transcriptional activity of oligodendrocyte related genes such as PLP and MBP, and promoted oligodendrocyte differentiation in dysmyelinating mice.
In conclusion, we suggest that Obp2 is indispensable for oligodendrocyte development and OIF could be useful for the therapy of demyelinating diseases.

Free Research Field

神経解剖学・神経発生学

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Published: 2019-03-29  

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