Linked Life Data

17880388

Source:http://linkedlifedata.com/resource/pubmed/id/17880388

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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2007-9-20
pubmed:abstractText
Adult neural stem and progenitor cells (NSPCs) are important autologous transplantation tools in regenerative medicine, as they can secrete factors that protect the ischemic brain. We investigated whether adult NSPCs genetically modified to secrete more glial cell line-derived neurotrophic factor (GDNF) could protect against transient ischemia in rats. NSPCs were harvested from the subventricular zone of adult Wistar rats and cultured for 3 weeks in the presence of epidermal growth factor. The NSPCs were treated with fibre-mutant Arg-Gly-Asp adenovirus containing the GDNF gene (NSPC-GDNF) or enhanced green fluorescent protein (EGFP) gene (NSPC-EGFP; control group). In one experiment, cultured cells were transplanted into the right ischemic boundary zone of Wistar rat brains. One week later, animals underwent 90 min of intraluminal right middle cerebral artery occlusion followed by magnetic resonance imaging and behavioural tests. The NSPC-GDNF group had higher behavioural scores and lesser infarct volume than did controls at 1, 7 and 28 days postocclusion. In the second experiment, we transplanted NSPCs 3 h after ischemic insult. Compared to controls, rats receiving NSPC-GDNF had decreased infarct volume and better behavioural assessments at 7 days post-transplant. Animals were killed on day 7 and brains were collected for GDNF ELISA and morphological assessment. Compared to controls, more GDNF was secreted, more NSPC-GDNF cells migrated toward the ischemic core and more NSPC-GDNF cells expressed immature neuronal marker. Moreover, the NSPC-GDNF group showed more effective inhibition of microglial invasion and apoptosis. These findings suggest that NSPC-GDNF may be useful in treatment of cerebral ischemia.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0953-816X
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1462-78
pubmed:meshHeading
pubmed-meshheading:17880388-Adenoviridae, pubmed-meshheading:17880388-Animals, pubmed-meshheading:17880388-Behavior, Animal, pubmed-meshheading:17880388-Bromodeoxyuridine, pubmed-meshheading:17880388-Cell Differentiation, pubmed-meshheading:17880388-Cell Movement, pubmed-meshheading:17880388-Cells, Cultured, pubmed-meshheading:17880388-Enzyme-Linked Immunosorbent Assay, pubmed-meshheading:17880388-Fibroblasts, pubmed-meshheading:17880388-Genetic Vectors, pubmed-meshheading:17880388-Glial Cell Line-Derived Neurotrophic Factor, pubmed-meshheading:17880388-Green Fluorescent Proteins, pubmed-meshheading:17880388-Immunohistochemistry, pubmed-meshheading:17880388-In Situ Nick-End Labeling, pubmed-meshheading:17880388-Ischemic Attack, Transient, pubmed-meshheading:17880388-Long-Term Potentiation, pubmed-meshheading:17880388-Magnetic Resonance Imaging, pubmed-meshheading:17880388-Male, pubmed-meshheading:17880388-Middle Cerebral Artery, pubmed-meshheading:17880388-Neurons, pubmed-meshheading:17880388-Rats, pubmed-meshheading:17880388-Rats, Wistar, pubmed-meshheading:17880388-Stem Cell Transplantation, pubmed-meshheading:17880388-Stem Cells, pubmed-meshheading:17880388-Transfection
pubmed:year
2007
pubmed:articleTitle
Adult neural stem and progenitor cells modified to secrete GDNF can protect, migrate and integrate after intracerebral transplantation in rats with transient forebrain ischemia.
pubmed:affiliation
Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho Okayama, Okayama, 700-8558, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't