Linked Life Data

15654083

Source:http://linkedlifedata.com/resource/pubmed/id/15654083

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2005-3-11
pubmed:abstractText
The TrkA and TrkB tyrosine kinases are members of the neurotrophin receptor family and mediate survival, differentiation, growth, and apoptosis of neurons in response to stimulation by their ligands, NGF and BDNF, respectively. Expression levels of TrkA/TrkB are important prognostic factors in a variety of embryonal tumors including neuroblastoma, the most common solid tumor of childhood. Because TrkA/TrkB exhibit a high level of sequence similarity and use overlapping pathways for signal transduction, the existence of specific effector molecules crucial for receptor and cell-type-specific response is likely. To identify these effectors by analyzing biological effects of TrkA and TrkB activation in a defined model, we performed a proteome study using the human neuroblastoma SY5Y cell line stably transfected with the TrkA or TrkB cDNA. The use of the recently introduced DIGE (fluorescence two-dimensional difference gel electrophoresis) system (Amersham Biosciences, Piscataway, NJ) allowed us to monitor differences in protein expression between samples in one gel. Proteomic changes were monitored in a time course of 0, 0.5, 1, 6, and 24 h following receptor activation. Using MALDI mass spectrometry, we identified, respectively, 22 and 9 differentially expressed proteins upon the addition of neurotrophin in SY5Y-TrkB and SY5Y-TrkA cells. Functional assignment revealed that the majority of these proteins are involved in organization and maintenance of cellular structures.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1535-9476
pubmed:author
pubmed:issnType
Print
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
291-9
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Identification of dynamic proteome changes upon ligand activation of Trk-receptors using two-dimensional fluorescence difference gel electrophoresis and mass spectrometry.
pubmed:affiliation
Ruhr-University Bochum, Medical Proteom-Center, Universitaetsstr. 150, 44801 Bochum, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't