Glycoprotein 130 signaling regulates Notch1 expression and activation in the self-renewal of mammalian forebrain neural stem cells

Andrew Chojnacki, Takuya Shimazaki, Christopher Gregg, Gerry Weinmaster, Samuel Weiss

Research output: Contribution to journalArticle

139 Citations (Scopus)

Abstract

Glycoprotein130 (gp130) and Notch signaling are thought to participate in neural stem cell (NSC) self-renewal. We asked whether gp130 regulates Notch activity in forebrain epidermal growth factor (EGF)-responsive NSCs. Disruption of Notch1 using antisense or a γ-secretase inhibitor demonstrated a requirement for Notch1 in the maintenance and proliferation of NSCs. Ciliary neurotrophic factor (CNTF) activation of gp130 in NSCs rapidly increased Notch1 expression. NOTCH1 activation, indicated by tumor necrosis factor α-converting enzyme (TACE)- and presenilin-mediated processing, also increased. Infusion of EGF + CNTF into adult forebrain lateral ventricles increased periventricular NOTCH 1 compared with EGF alone. Neither Hes1 (hairy and enhancer of split) nor Hes5 appeared to mediate gp130-enhanced NOTCH1 signaling that regulates NSC maintenance. This is the first example of a link between gp130 signaling and NOTCH1 in regulating NSC self-renewal.

Original languageEnglish
Pages (from-to)1730-1741
Number of pages12
JournalJournal of Neuroscience
Volume23
Issue number5
Publication statusPublished - 2003 Mar 1

Fingerprint

Neural Stem Cells
Prosencephalon
Epidermal Growth Factor
Ciliary Neurotrophic Factor
Glycoproteins
Maintenance
Presenilins
Amyloid Precursor Protein Secretases
Lateral Ventricles
Tumor Necrosis Factor-alpha
Cell Self Renewal

Keywords

  • CNTF
  • Delta
  • Gp130
  • Notch
  • Self-renewal
  • Stem cell

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Glycoprotein 130 signaling regulates Notch1 expression and activation in the self-renewal of mammalian forebrain neural stem cells. / Chojnacki, Andrew; Shimazaki, Takuya; Gregg, Christopher; Weinmaster, Gerry; Weiss, Samuel.

In: Journal of Neuroscience, Vol. 23, No. 5, 01.03.2003, p. 1730-1741.

Research output: Contribution to journalArticle

Chojnacki, Andrew ; Shimazaki, Takuya ; Gregg, Christopher ; Weinmaster, Gerry ; Weiss, Samuel. / Glycoprotein 130 signaling regulates Notch1 expression and activation in the self-renewal of mammalian forebrain neural stem cells. In: Journal of Neuroscience. 2003 ; Vol. 23, No. 5. pp. 1730-1741.
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