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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2-3
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pubmed:dateCreated |
1983-3-24
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pubmed:abstractText |
Nerve growth factor (NGF) stimulates the uptake rate of the nonmetabolized amino acid alpha-aminoisobutyric acid (AIB) in the clonal PC12 pheochromocytoma cell line by 40-70%. This effect reaches a maximum after a 1-hour incubation with the hormone and then drops over 50%, reaching a minimum after 4 hours of NGF administration. Longer exposure to the hormone leads to a gradual rise in stimulation, and by 24 hours, the cells regain about 80% of the original 1-hour rate. Results of NGF-binding studies indicate that stimulation of AIB uptake follows closely behind the amount of NGF bound to the low-affinity NGF receptors. Dose-response experiments indicate that full stimulation occurs biphasically. Within the NGF concentration range of 0.1 ng/ml to 1 ng/ml, the AIB uptake rate is 30% of the maximum 1-hour response. At 2.5 ng/ml NGF, the stimulation jumps to about 75% maximal response while 100% response is reached between 5 ng/ml and 50 ng/ml NGF. We suggest that the two states of the NGF plasma membrane receptor on PC12 cells may both be involved in mediating NGF stimulation of AIB uptake.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/2-aminoisobutyric acid,
http://linkedlifedata.com/resource/pubmed/chemical/Aminoisobutyric Acids,
http://linkedlifedata.com/resource/pubmed/chemical/Nerve Growth Factors,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Cell Surface,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Nerve Growth Factor
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pubmed:status |
MEDLINE
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pubmed:issn |
0360-4012
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
8
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
357-65
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:6296414-Absorption,
pubmed-meshheading:6296414-Aminoisobutyric Acids,
pubmed-meshheading:6296414-Animals,
pubmed-meshheading:6296414-Clone Cells,
pubmed-meshheading:6296414-Dose-Response Relationship, Drug,
pubmed-meshheading:6296414-Nerve Growth Factors,
pubmed-meshheading:6296414-Pheochromocytoma,
pubmed-meshheading:6296414-Rats,
pubmed-meshheading:6296414-Receptors, Cell Surface,
pubmed-meshheading:6296414-Receptors, Nerve Growth Factor,
pubmed-meshheading:6296414-Stimulation, Chemical,
pubmed-meshheading:6296414-Time Factors
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pubmed:year |
1982
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pubmed:articleTitle |
Nerve growth factor-induced stimulation of alpha-aminoisobutyric acid uptake in PC12 cells: relationship to plasma membrane receptor occupancy.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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