Linked Life Data

21262209

Source:http://linkedlifedata.com/resource/pubmed/id/21262209

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2011-5-23
pubmed:abstractText
Accumulation of dysfunctional Mitochondria has been implicated in the pathogenesis of Parkinson's disease (PD). Mutations in PTEN-induced kinase 1 (PINK1), which encodes a putative mitochondrial serine/threonine kinase, have been identified in early-onset forms of PD. Recent data showed that the loss of PINK1 function led to oxidative stress, mitochondrial damage and autophagic elimination of damaged mitochondria. But the precise mechanism of autophagy induced by loss of PINK1 is unclear. In this study, we found that in mouse dopaminergic MN9D cells, down-regulation of PINK1 by RNA interference resulted in induction of mitochondrial autophagy (mitophagy), abnormal mitochondrial morphology, partial loss of mitochondrial membrane potential and increased production of reactive oxygen species (ROS). Mitophagy in these cells was associated with the up-regulation of autophagy activator Beclin 1 and opening of mitochondrial permeability transition (MPT) pore. These findings suggest that PINK1 may regulate mitophagy through controlling MPT pore opening and general autophagy regulators.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1872-6240
pubmed:author
pubmed:copyrightInfo
Copyright © 2010. Published by Elsevier B.V.
pubmed:issnType
Electronic
pubmed:day
7
pubmed:volume
1394
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1-13
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Silencing of PINK1 induces mitophagy via mitochondrial permeability transition in dopaminergic MN9D cells.
pubmed:affiliation
Beijing Institute for Neuroscience, Capital Medical University, Beijing Center of Neural Regeneration and Repair, Key Laboratory for Neurodegenerative Disease of the Ministry of Education, Beijing 100069, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't