Linked Life Data

15345675

Source:http://linkedlifedata.com/resource/pubmed/id/15345675

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2004-11-16
pubmed:abstractText
Islet-brain-1 (IB1)/c-Jun N-terminal kinase interacting protein 1 (JIP-1) is a scaffold protein that is expressed at high levels in neurons and the endocrine pancreas. IB1/JIP-1 interacts with the c-Jun N-terminal kinase and mediates the specific physiological stimuli (such as cytokines). However, the potential role of the protein in the pituitary has not been evaluated. Herein, we examined expression of the gene encoding IB1/JIP-1 and its translated product in the anterior pituitary gland and a pituitary cell line, GH3. We then examined the potential role of IB1/JIP-1 in controlling TSH-beta gene expression. Exposure of GH3 cells to TRH stimulated the expression of IB1/JIP-1 protein levels, mRNA, and transcription of the promoter. The increase of IB1/JIP-1 content by transient transfection study of a vector encoding IB1/JIP-1 or by the stimulation of TRH stimulates TSH-beta promoter activity. This effect is not found in the presence of a mutated nonfunctional (IB1S59N) IB1/JIP-1 protein. Together, these facts point to a central role of the IB1/JIP-1 protein in the control of TRH-mediated TSH-beta stimulation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0013-7227
pubmed:author
pubmed:issnType
Print
pubmed:volume
145
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5623-8
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Thyrotropin-releasing hormone-stimulated thyrotropin expression involves islet-brain-1/c-Jun N-terminal kinase interacting protein-1.
pubmed:affiliation
First Department of Internal Medicine, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan.
pubmed:publicationType
Journal Article