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Bovine milk phospholipid fraction protects Neuro2a cells from endoplasmic reticulum stress via PKC activation and autophagy.
MedLine Citation:
PMID:  22664345     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Endoplasmic reticulum stress commonly causes neuronal damage in a lot of neurodegenerative diseases. In this study, we examined neuroprotective effect of bovine milk phospholipid fraction (mPL) on mouse neuroblastoma Neuro2a cells from endoplasmic reticulum (ER) stress induced cell death. Neuro2a cells were induced cell death by ER stressor tunicamycin (TM) or thapsigargin (TG), and studied whether mPL could attenuate the toxicity. By preincubation with mPL, the cell viabilities were significantly increased in TM or TG treated cells, and caspase-12 activated cells induced by TM or TG treatment were significantly decreased. Protein kinase C inhibitor GF109203x significantly reduced the protective effect on TM induced cell death, and autophagy inhibitor 3-methyladenine reduced the protective effect on TM or TG induced cell death. Moreover, preincubation with mPL significantly stimulated autophagosomes formation observed by dansylcadaverine staining. Our data suggest that mPL will be applicable to prevent neurodegenerative diseases caused by ER stress.
Authors:
Kaoru Nagai
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-6-2
Journal Detail:
Title:  Journal of bioscience and bioengineering     Volume:  -     ISSN:  1347-4421     ISO Abbreviation:  -     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-6-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888800     Medline TA:  J Biosci Bioeng     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.
Affiliation:
Department of Epigenetic Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan.
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