Bmp5 Regulates Neural Crest Cell Survival and Proliferation via Two Different Signaling Pathways

Hung Yu Shih, Shu Yuan Hsu, Pin Ouyang, Sheng Jia Lin, Ting Yun Chou, Ming Chang Chiang, Yi Chuan Cheng*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

24 Scopus citations

Abstract

Neural crest progenitor cells, which give rise to many ectodermal and mesodermal derivatives, must maintain a delicate balance of apoptosis and proliferation for their final tissue contributions. Here we show that zebrafish bmp5 is expressed in neural crest progenitor cells and that it activates the Smad and Erk signaling pathways to regulate cell survival and proliferation, respectively. Loss-of-function analysis showed that Bmp5 was required for cell survival and this response is mediated by the Smad–Msxb signaling cascade. However, the Bmp5–Smad–Msxb signaling pathway had no effect on cell proliferation. In contrast, Bmp5 was sufficient to induce cell proliferation through the Mek–Erk–Id3 signaling cascade, whereas disruption of this signaling cascade had no effect on cell survival. Taken together, our results demonstrate an important regulatory mechanism for bone morphogenic protein-initiated signal transduction underlying the formation of neural crest progenitors. Stem Cells 2017;35:1003–1014.

Original languageEnglish
Pages (from-to)1003-1014
Number of pages12
JournalStem Cells
Volume35
Issue number4
DOIs
StatePublished - 01 04 2017

Bibliographical note

Publisher Copyright:
© 2016 AlphaMed Press

Keywords

  • Apoptosis
  • Bmp5
  • Neural crest progenitors
  • Proliferation

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