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A PKCbeta isoform mediates phorbol ester-induced activation of Erk1/2 and expression of neuronal differentiation genes in neuroblastoma cells

Författare

Summary, in English

Protein kinase C (PKC) activation induces neuronal differentiation of SH-SY5Y neuroblastoma cells. This study examines the role of PKCbeta isoforms in this process. The PKCbeta-specific inhibitor LY379196 had no effect on 12-O-tetradecanoylphorbol 13-acetate (TPA)-induced neurite outgrowth from SH-SY5Y neuroblastoma cells. On the other hand, PKCbeta inhibition suppressed the TPA-stimulated increase in neuropeptide Y mRNA, activation of neuropeptide Y gene promoter elements, and phosphorylation of Erk1/2. The TPA-induced increase in neuropeptide Y expression was also inhibited by the MEK inhibitor PD98059. These data indicate that activation of a PKCbeta isoform, through a pathway involving Erk1/2, leads to increased expression of neuronal differentiation genes in neuroblastoma cells.

Publiceringsår

2001

Språk

Engelska

Sidor

126-130

Publikation/Tidskrift/Serie

FEBS Letters

Volym

508

Issue

1

Dokumenttyp

Artikel i tidskrift

Förlag

Wiley-Blackwell

Ämne

  • Biological Sciences

Nyckelord

  • Growth-associated protein 43
  • Mitogen-activated protein kinase
  • Neuroblastoma cell
  • Neuronal differentiation
  • Neuropeptide Y
  • Protein kinase C

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1873-3468