Function of RNA-binding protein Musashi-1 in stem cells

Hideyuki Okano, Hironori Kawahara, Masako Toriya, Keio Nakao, Shinsuke Shibata, Takao Imai

研究成果: Review article査読

324 被引用数 (Scopus)


Musashi is an evolutionarily conserved family of RNA-binding proteins that is preferentially expressed in the nervous system. The first member of the Musashi family was identified in Drosophila. This protein plays an essential role in regulating the asymmetric cell division of ectodermal precursor cells known as sensory organ precursor cells through the translational regulation of target mRNA. In the CNS of Drosophila larvae, however, Musashi is expressed in proliferating neuroblasts and likely has a different function. Its probable mammalian homologue, Musashi-1, is a neural RNA-binding protein that is strongly expressed in fetal and adult neural stem cells (NSCs). Mammalian Musashi-1 augments Notch signaling through the translational repression of its target mRNA, m-Numb, thereby contributing to the self-renewal of NSCs. In addition to its functions in NSCs, the role of mammalian Musashi-1 protein in epithelial stem cells, including intestinal and mammary gland stem cells, is attracting increasing interest.

ジャーナルExperimental Cell Research
出版ステータスPublished - 2005 6月 10

ASJC Scopus subject areas

  • 細胞生物学


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