Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
13
pubmed:dateCreated
2005-8-19
pubmed:abstractText
Direct protein interactions between the dopamine transporter and alpha-synuclein demonstrate that dopamine uptake function is modulated by alpha-synuclein. We report here that chronic cocaine abuse results in an increase in alpha-synuclein expression in the human striatum. Immunoblot analysis in the ventral putamen showed that alpha-synuclein protein was increased in striatal synaptosomes from cocaine users compared with age-matched drug-free controls. [H]-Dopamine transporter uptake was increased in parallel with 2beta-carbomethoxy-3beta-(4-fluorophenyl)tropane binding to the dopamine transporter. The increase in alpha-synuclein protein was more marked in the ventromedial sectors of the striatum than in the dorsal caudate nucleus. These results demonstrate concomitant regulation of alpha-synuclein and dopamine transporter binding and function in human striatal synaptic terminals isolated from cocaine abusers. Overexpression of alpha-synuclein may play a role in cocaine-induced plasticity and regulation of dopamine synaptic tone.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0959-4965
pubmed:author
pubmed:issnType
Print
pubmed:day
8
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1489-93
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Cocaine abuse elevates alpha-synuclein and dopamine transporter levels in the human striatum.
pubmed:affiliation
Department of Neurology, University of Miami School of Medicine, Miami, FL 33101, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural