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The Hippocampal Neurons of Neuronal Apoptosis Inhibitory Protein 1 (NAIP1)-deleted Mice Display Increased Vulnerability to Kainic Acid-induced Injury

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Specialty Science
Date 2000 Feb 19
PMID 10681452
Citations 20
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Abstract

The neuronal apoptosis inhibitory protein (NAIP) is a member of a novel family of inhibitor of apoptosis (IAP) proteins. The IAP genes are highly conserved from baculovirus to metazoans and suppress apoptosis induced by a variety of triggers both in vitro and in vivo. Here we describe the generation and characterization of mice with the targeted deletion of NAIP1. We demonstrate that the NAIP1-deleted mice develop normally. However, the survival of pyramidal neurons in the hippocampus after kainic acid-induced limbic seizures is greatly reduced in the NAIP1 knock-out animals. Thus, although NAIP1 is not necessary for normal development of murine central nervous system, the endogenous NAIP1 is required for neuronal survival in pathological conditions.

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