Calcium-dependent Ret activation by GDNF and neurturin

Chika Nozaki, Naoya Asai, Hideki Murakami, Toshihide Iwashita, Yosuke Iwata, Keizo Horibe, Robert D. Klein, Arnon Rosenthal, Masahide Takahashi

研究成果: Article査読

56 被引用数 (Scopus)

抄録

Glial cell line-derived neurotrophic factor (GDNF) and neurturin (NTN) define a new family of neurotrophic factors that play crucial roles in survival and differentiation of various neurons. Recent studies demonstrated that GDNF and NTN use a multicomponent receptor system in which glycosol-phosphatidylinositol (GPI)-linked cell surface proteins and Ret receptor tyrosine kinase function as the ligand-binding and signalling components, respectively. In the present study, we investigated the role of Ca2+ ions for biochemical and biological activities of Ret because Ret has a unique structure of the extracellular domain with the cadherin-like motif. The results demonstrated that Ca2+ ions might be required for the complex formation of Ret and GDNF or NTN that induces Ret oligomerization and autophosphorylation. Full morphological differentiation of neuroblastoma cells by these neurotrophic factors was also Ca2+-dependent. These findings thus suggested that, in addition to GPI-linked cell surface proteins, Ca2+ ions are components of the signal transducing complex formed by Ret and GDNF protein family.

本文言語English
ページ(範囲)293-299
ページ数7
ジャーナルOncogene
16
3
DOI
出版ステータスPublished - 22-01-1998
外部発表はい

All Science Journal Classification (ASJC) codes

  • 分子生物学
  • 遺伝学
  • 癌研究

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