Mixed lineage kinase 3 mediates gp120IIIB-induced neurotoxicity.

Abstract:

:Overexpression of gp120, the major coat protein of the HIV-1 virus, in central glial cells, or treatment of neurons with gp120 in culture, produces apoptotic neuronal death. Here we demonstrate that CEP-1347 (KT7515), an inhibitor of mixed lineage kinase 3 (MLK3), an upstream activator of JNK, inhibits gp120IIIB-induced apoptosis of hippocampal neurons. Furthermore, expression of wild type MLK3 in hippocampal pyramidal neurons enhanced gp120IIIB-induced neurotoxicity, whereas expression of a dominant negative MLK3 protected neurons from the toxic effects of the glycoprotein. These results indicate a role for MLK3 signaling in gp120IIIB-induced neuronal death, and suggest potential clinical utility of CEP-1347 in inhibiting the progression of AIDS dementia.

journal_name

J Neurochem

authors

Bodner A,Maroney AC,Finn JP,Ghadge G,Roos R,Miller RJ

doi

10.1046/j.1471-4159.2002.01088.x

keywords:

subject

Has Abstract

pub_date

2002-09-01 00:00:00

pages

1424-34

issue

6

eissn

0022-3042

issn

1471-4159

pii

1088

journal_volume

82

pub_type

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