Inhibition of calpains improves memory and synaptic transmission in a mouse model of Alzheimer disease

Calpains are calcium-dependent enzymes that determine the fate of proteins through regulated proteolytic activity. Calpains have been linked to the modulation of memory and are key to the pathogenesis of Alzheimer disease (AD). When abnormally activated, calpains can also initiate degradation of pro...

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Published inThe Journal of clinical investigation Vol. 118; no. 8; pp. 2796 - 2807
Main Authors Trinchese, Fabrizio, Fa’, Mauro, Liu, Shumin, Zhang, Hong, Hidalgo, Ariel, Schmidt, Stephen D., Yamaguchi, Hisako, Yoshii, Narihiko, Mathews, Paul M., Nixon, Ralph A., Arancio, Ottavio
Format Journal Article
LanguageEnglish
Published United States American Society for Clinical Investigation 01.08.2008
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Abstract Calpains are calcium-dependent enzymes that determine the fate of proteins through regulated proteolytic activity. Calpains have been linked to the modulation of memory and are key to the pathogenesis of Alzheimer disease (AD). When abnormally activated, calpains can also initiate degradation of proteins essential for neuronal survival. Here we show that calpain inhibition through E64, a cysteine protease inhibitor, and the highly specific calpain inhibitor BDA-410 restored normal synaptic function both in hippocampal cultures and in hippocampal slices from the APP/PS1 mouse, an animal model of AD. Calpain inhibition also improved spatial-working memory and associative fear memory in APP/PS1 mice. These beneficial effects of the calpain inhibitors were associated with restoration of normal phosphorylation levels of the transcription factor CREB and involved redistribution of the synaptic protein synapsin I. Thus, calpain inhibition may prove useful in the alleviation of memory loss in AD.
AbstractList Calpains are calcium-dependent enzymes that determine the fate of proteins through regulated proteolytic activity. Calpains have been linked to the modulation of memory and are key to the pathogenesis of Alzheimer disease (AD). When abnormally activated, calpains can also initiate degradation of proteins essential for neuronal survival. Here we show that calpain inhibition through E64, a cysteine protease inhibitor, and the highly specific calpain inhibitor BDA-410 restored normal synaptic function both in hippocampal cultures and in hippocampal slices from the APP/PS1 mouse, an animal model of AD. Calpain inhibition also improved spatial-working memory and associative fear memory in APP/PS1 mice. These beneficial effects of the calpain inhibitors were associated with restoration of normal phosphorylation levels of the transcription factor CREB and involved redistribution of the synaptic protein synapsin I. Thus, calpain inhibition may prove useful in the alleviation of memory loss in AD.
Calpains are calcium-dependent enzymes that determine the fate of proteins through regulated proteolytic activity. Calpains have been linked to the modulation of memory and are key to the pathogenesis of Alzheimer disease (AD). When abnormally activated, calpains can also initiate degradation of proteins essential for neuronal survival. Here we show that calpain inhibition through E64, a cysteine protease inhibitor, and the highly specific calpain inhibitor BDA-410 restored normal synaptic function both in hippocampal cultures and in hippocampal slices from the APP/PS1 mouse, an animal model of AD. Calpain inhibition also improved spatial-working memory and associative fear memory in APP/PS1 mice. These beneficial effects of the calpain inhibitors were associated with restoration of normal phosphorylation levels of the transcription factor CREB and involved redistribution of the synaptic protein synapsin I. Thus, calpain inhibition may prove useful in the alleviation of memory loss in AD.Calpains are calcium-dependent enzymes that determine the fate of proteins through regulated proteolytic activity. Calpains have been linked to the modulation of memory and are key to the pathogenesis of Alzheimer disease (AD). When abnormally activated, calpains can also initiate degradation of proteins essential for neuronal survival. Here we show that calpain inhibition through E64, a cysteine protease inhibitor, and the highly specific calpain inhibitor BDA-410 restored normal synaptic function both in hippocampal cultures and in hippocampal slices from the APP/PS1 mouse, an animal model of AD. Calpain inhibition also improved spatial-working memory and associative fear memory in APP/PS1 mice. These beneficial effects of the calpain inhibitors were associated with restoration of normal phosphorylation levels of the transcription factor CREB and involved redistribution of the synaptic protein synapsin I. Thus, calpain inhibition may prove useful in the alleviation of memory loss in AD.
Audience Academic
Author Nixon, Ralph A.
Trinchese, Fabrizio
Liu, Shumin
Fa’, Mauro
Zhang, Hong
Yoshii, Narihiko
Schmidt, Stephen D.
Hidalgo, Ariel
Yamaguchi, Hisako
Mathews, Paul M.
Arancio, Ottavio
AuthorAffiliation 1 Department of Pathology and Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University, New York, New York, USA. 2 Department of Psychiatry, New York University School of Medicine, New York, New York, USA. 3 Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, New York, USA. 4 Pharmaceutical Research Division, Research Laboratory 1 (CNS), Mitsubishi Pharma Corporation, Nihonbashi-Honcho, Chuo-ku, Tokyo, Japan. 5 Department of Cell Biology, New York University School of Medicine, New York, New York, USA
AuthorAffiliation_xml – name: 1 Department of Pathology and Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University, New York, New York, USA. 2 Department of Psychiatry, New York University School of Medicine, New York, New York, USA. 3 Center for Dementia Research, Nathan Kline Institute for Psychiatric Research, Orangeburg, New York, USA. 4 Pharmaceutical Research Division, Research Laboratory 1 (CNS), Mitsubishi Pharma Corporation, Nihonbashi-Honcho, Chuo-ku, Tokyo, Japan. 5 Department of Cell Biology, New York University School of Medicine, New York, New York, USA
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BackLink https://www.ncbi.nlm.nih.gov/pubmed/18596919$$D View this record in MEDLINE/PubMed
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Copyright COPYRIGHT 2008 American Society for Clinical Investigation
Copyright American Society for Clinical Investigation Aug 2008
Copyright © 2008, American Society for Clinical Investigation 2008
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Snippet Calpains are calcium-dependent enzymes that determine the fate of proteins through regulated proteolytic activity. Calpains have been linked to the modulation...
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SubjectTerms Alzheimer Disease - drug therapy
Alzheimer Disease - metabolism
Alzheimer Disease - physiopathology
Alzheimer's disease
Animals
Biomedical research
Calpain
Calpain - antagonists & inhibitors
Cell culture
Cells, Cultured
Control
Cyclin-dependent kinases
Disease Models, Animal
Enzymes
Glycoproteins - pharmacology
Hippocampus - cytology
Hippocampus - metabolism
Homozygote
Immunohistochemistry
Kinases
Leucine - analogs & derivatives
Leucine - pharmacology
Localization
Memory
Memory - drug effects
Mice
Mice, Transgenic
Models, Neurological
Neural transmission
Peptides
Phosphorylation
Physiological aspects
Proteins
Synaptic Transmission - drug effects
Title Inhibition of calpains improves memory and synaptic transmission in a mouse model of Alzheimer disease
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