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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1998-5-22
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pubmed:abstractText |
Insulin-like growth factors (IGFs) play a central role in brain growth and development, with IGF-1, its receptors and binding proteins (IGFBPs) being highly expressed, particularly in the olfactory bulb (OB), representing a local paracrine system. A potential role of IGFBPs in transporting and targeting IGFs to their receptors is supported by the finding that abundant IGFBP-2 is associated with cell surface proteoglycans. An OB organ culture system expressing IGF-1 and IGFBPs represents an in vitro injury model. Although IGF-1 is potently antiapoptotic for neurons and oligodendrocytes, marked gliosis and IGFBP-3 expression are seen, similar to in vivo injury responses, where intraventricular injection of IGF-1 postinjury enhances neuronal survival by blocking apoptosis. In contrast, des (1-3) IGF-1, which has low affinity for IGFBPs, is ineffective, supporting a transport or receptor targeting role for local IGFBPs. We conclude that the IGF system plays a crucial cell survival and growth role in the developing and injured brain and that IGFs have significant therapeutic potential.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0301-0163
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
49 Suppl 1
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
37-40
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pubmed:dateRevised |
2005-11-16
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pubmed:meshHeading |
pubmed-meshheading:9554468-Animals,
pubmed-meshheading:9554468-Apoptosis,
pubmed-meshheading:9554468-Brain,
pubmed-meshheading:9554468-Brain Injuries,
pubmed-meshheading:9554468-Humans,
pubmed-meshheading:9554468-Insulin-Like Growth Factor Binding Proteins,
pubmed-meshheading:9554468-Insulin-Like Growth Factor I,
pubmed-meshheading:9554468-Olfactory Bulb,
pubmed-meshheading:9554468-Organ Culture Techniques,
pubmed-meshheading:9554468-Somatomedins
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pubmed:year |
1998
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pubmed:articleTitle |
The role of the insulin-like growth factor system in the developing brain.
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pubmed:affiliation |
Centre for Hormone Research, Royal Children's Hospital, Parkville, Vic., Australia.
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pubmed:publicationType |
Journal Article,
Review
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