ICE/CED-3 family executes oligodendrocyte apoptosis by tumor necrosis factor

Shin Hisahara, ShiN'ichi Shoji, Hideyuki Okano, Masayuki Miura

Research output: Contribution to journalArticle

128 Citations (Scopus)

Abstract

Tumor necrosis factor (TNF) is thought to be one of the mediators responsible for the damage of oligodendrocytes (OLGs) in multiple sclerosis (MS). We report here the involvement of the interleukin 1β-converting enzyme (ICE)/Caenorhabditis elegans gene ced-3 (CED-3) family in TNF-mediated cell death of OLGs. The addition of TNF-α to primary cultures of OLGs that express ice and cpp32 significantly decreased the number of live OLGs in 72 h. DNA fragmentation was detected in TNF-treated OLGs at 36 h with the terminal deoxynucleotidyl transferase dUTP nick end-labeling assay. Benzyloxycarbonyl-Asp-CH 2OC(O)-2,6-dichlorobenzene, an inhibitor of the ICE/CED-3 family that shows p35-like inhibitory specificity, protected against the TNF-induced cell death of OLGs. Furthermore, acetyl-YVAD-CHO (a specific inhibitor of ICE-like proteases) as well as acetyl-DEVD-CHO (a specific inhibitor of CPP32-like proteases) enhanced the survival of OLGs treated with TNF-α, indicating that ICE- and the CPP32-mediated cell death pathways are activated in TNF-induced OLG cell death. Our results suggest that the inhibition of ICE/CED-3 proteases may be a novel approach to treat neurodegenerative diseases such as MS.

Original languageEnglish
Pages (from-to)10-20
Number of pages11
JournalJournal of Neurochemistry
Volume69
Issue number1
Publication statusPublished - 1997 Jul
Externally publishedYes

Fingerprint

Caspase 1
Oligodendroglia
Tumor Necrosis Factor-alpha
Apoptosis
Cell death
Cell Death
Peptide Hydrolases
Multiple Sclerosis
Neurodegenerative diseases
DNA Nucleotidylexotransferase
Ice
Caenorhabditis elegans
DNA Fragmentation
Labeling
Assays
Neurodegenerative Diseases
Genes
DNA

Keywords

  • Apoptosis
  • Benzyloxycarbonyl-Asp-CH OC(O)-2,6-dichlorobenzene
  • Interleukin 1β-converting enzyme/Caenorhabditis elegans gene ced-3 family proteases
  • Multiple sclerosis
  • Oligodendrocyte
  • Tumor necrosis factor-α

ASJC Scopus subject areas

  • Biochemistry
  • Cellular and Molecular Neuroscience

Cite this

ICE/CED-3 family executes oligodendrocyte apoptosis by tumor necrosis factor. / Hisahara, Shin; Shoji, ShiN'ichi; Okano, Hideyuki; Miura, Masayuki.

In: Journal of Neurochemistry, Vol. 69, No. 1, 07.1997, p. 10-20.

Research output: Contribution to journalArticle

Hisahara, Shin ; Shoji, ShiN'ichi ; Okano, Hideyuki ; Miura, Masayuki. / ICE/CED-3 family executes oligodendrocyte apoptosis by tumor necrosis factor. In: Journal of Neurochemistry. 1997 ; Vol. 69, No. 1. pp. 10-20.
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