rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
7
|
pubmed:dateCreated |
2007-6-15
|
pubmed:abstractText |
Exenatide (Ex-4) is an antidiabetic drug that acts through the glucagon-like peptide 1 receptor and has recently been approved for the treatment of type 2 diabetes mellitus. Ex-4 also has been shown to affect beta cell gene expression and increase beta cell mass in rodent models of type 1 diabetes mellitus, but the mechanisms are not fully understood. We therefore analyzed the pathways affected by Ex-4 in human islets by using oligonucleotide microarrays and the PathwayStudio software (Ariadne Genomics, Rockville, MD). We identified the JAK1-STAT1 pathway as a novel target of Ex-4 and confirmed the Ex-4-mediated down-regulation of JAK1 and STAT1 by quantitative reverse transcription-polymerase chain reaction in human islets and INS-1 cells. JAK1-STAT1 is the major signaling pathway mediating the interferon gamma effects on beta cell apoptosis in type 1 diabetes mellitus. Thus, these findings suggest that Ex-4 treatment may also be beneficial in type 1 diabetes mellitus, where it may help protect beta cells from cytokine-induced cell death by inhibiting JAK1-STAT1.
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pubmed:grant |
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jul
|
pubmed:issn |
0026-0495
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
56
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
915-8
|
pubmed:dateRevised |
2009-11-19
|
pubmed:meshHeading |
pubmed-meshheading:17570252-Cells, Cultured,
pubmed-meshheading:17570252-Gene Expression Profiling,
pubmed-meshheading:17570252-Humans,
pubmed-meshheading:17570252-Hypoglycemic Agents,
pubmed-meshheading:17570252-Insulin-Secreting Cells,
pubmed-meshheading:17570252-Interferon-gamma,
pubmed-meshheading:17570252-Janus Kinase 1,
pubmed-meshheading:17570252-Peptides,
pubmed-meshheading:17570252-STAT1 Transcription Factor,
pubmed-meshheading:17570252-Signal Transduction,
pubmed-meshheading:17570252-Venoms
|
pubmed:year |
2007
|
pubmed:articleTitle |
Exenatide blocks JAK1-STAT1 in pancreatic beta cells.
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pubmed:affiliation |
Department of Medicine, University of Wisconsin, Madison, WI, USA.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural
|