Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2010-5-7
pubmed:abstractText
Parkinson's disease (PD) is the second most common neurodegenerative disease, affecting 2% of the population over age 65years. Mitochondrial defect and oxidative stress actively participate in the dopaminergic (DA) neuron degeneration in PD. Xyloketal B is a novel marine compound with unique chemical structure isolated from mangrove fungus Xylaria sp. (no. 2508). Recently, we have demonstrated that Xyloketal B can directly scavenge DPPH free radicals and protects mitochondria against oxidative insult. In the present study, we investigate the neuroprotective action of xyloketal B against MPP+-induced neurotoxicity in Caenorhabditis elegans and PC12 cells. The viability and DA neurodegeneration was assessed in C. elegans selectively expressing green fluorescent protein (GFP) in DA neurons. PC12 cell damage was measured using MTT and nuclear morphology. Intracellular reactive oxygen species (ROS), mitochondrial membrane potential and total GSH were assessed. Xyloketal B dose-dependently protected against MPP+-induced loss of viability and DA neurodegeneration in C. elegans. Similar neuroprotection was replicated in MPP+ PC12 cell model. In addition, xyloketal B attenuated MPP+-induced intracellular ROS accumulation, loss of mitochondrial membrane potential and restored total GSH level in PC12 cells. All together, the present study demonstrates that xyloketal B protects against MPP+-induced neurotoxicity in C. elegans and PC12 cells mainly through its antioxidant property and restoration of total GSH level.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1872-6240
pubmed:author
pubmed:copyrightInfo
Copyright 2010 Elsevier B.V. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
21
pubmed:volume
1332
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
110-9
pubmed:meshHeading
pubmed-meshheading:20347725-1-Methyl-4-phenylpyridinium, pubmed-meshheading:20347725-Animals, pubmed-meshheading:20347725-Animals, Genetically Modified, pubmed-meshheading:20347725-Caenorhabditis elegans, pubmed-meshheading:20347725-Cell Nucleus, pubmed-meshheading:20347725-Cell Survival, pubmed-meshheading:20347725-Dopamine, pubmed-meshheading:20347725-Dose-Response Relationship, Drug, pubmed-meshheading:20347725-Glutathione, pubmed-meshheading:20347725-Green Fluorescent Proteins, pubmed-meshheading:20347725-Intracellular Space, pubmed-meshheading:20347725-Membrane Potential, Mitochondrial, pubmed-meshheading:20347725-Nerve Degeneration, pubmed-meshheading:20347725-Neurons, pubmed-meshheading:20347725-Neuroprotective Agents, pubmed-meshheading:20347725-PC12 Cells, pubmed-meshheading:20347725-Pyrans, pubmed-meshheading:20347725-Rats, pubmed-meshheading:20347725-Reactive Oxygen Species
pubmed:year
2010
pubmed:articleTitle
Protective effects of xyloketal B against MPP+-induced neurotoxicity in Caenorhabditis elegans and PC12 cells.
pubmed:affiliation
Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, PR China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural