Linked Life Data

20350351

Source:http://linkedlifedata.com/resource/pubmed/id/20350351

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2010-11-9
pubmed:abstractText
The ultimate therapy for ischemic stroke is restoration of blood supply in the ischemic region and regeneration of lost neural cells. This might be achieved by transplanting cells that differentiate into vascular or neuronal cell types, or secrete trophic factors that enhance self-renewal, recruitment, long-term survival, and functional integration of endogenous stem/progenitor cells. Experimental stroke models have been developed to determine potential beneficial effect of stem/progenitor cell-based therapies. To follow the fate of grafted cells in vivo, a number of noninvasive imaging approaches have been developed. Magnetic resonance imaging (MRI) is a high-resolution, clinically relevant method allowing in vivo monitoring of cells labeled with contrast agents. In this study, labeling efficiency of three different stem cell populations [mouse embryonic stem cells (mESC), rat multipotent adult progenitor cells (rMAPC), and mouse mesenchymal stem cells (mMSC)] with three different (ultra)small superparamagnetic iron oxide [(U)SPIO] particles (Resovist, Endorem, Sinerem) was compared. Labeling efficiency with Resovist and Endorem differed significantly between the different stem cells. Labeling with (U)SPIOs in the range that allows detection of cells by in vivo MRI did not affect differentiation of stem cells when labeled with concentrations of particles needed for MRI-based visualization. Finally, we demonstrated that labeled rMAPC could be detected in vivo and that labeling did not interfere with their migration. We conclude that successful use of (U)SPIOs for MRI-based visualization will require assessment of the optimal (U)SPIO for each individual (stem) cell population to ensure the most sensitive detection without associated toxicity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1555-3892
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
919-36
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Effects of MRI contrast agents on the stem cell phenotype.
pubmed:affiliation
Stem Cell Institute, K.U. Leuven, Leuven, Belgium. Annelies.crabbe@med.kuleuven.be
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't