Differential expression of insulin genes 1 and 2 in MIN6 cells and pseudoislets

There is some evidence that the two rodent insulin genes are differentially regulated in mice, although there is no satisfactory consensus on the relative levels and patterns of expression for the two genes. Using the mouse insulinoma cell line MIN6, we have demonstrated by quantitative RT-PCR, diff...

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Veröffentlicht in:Biochemical and biophysical research communications 2002-08, Vol.296 (3), p.589-595
Hauptverfasser: Roderigo-Milne, Helen, Hauge-Evans, Astrid C, Persaud, Shanta J, Jones, Peter M
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container_issue 3
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container_title Biochemical and biophysical research communications
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creator Roderigo-Milne, Helen
Hauge-Evans, Astrid C
Persaud, Shanta J
Jones, Peter M
description There is some evidence that the two rodent insulin genes are differentially regulated in mice, although there is no satisfactory consensus on the relative levels and patterns of expression for the two genes. Using the mouse insulinoma cell line MIN6, we have demonstrated by quantitative RT-PCR, differential patterns of expression for the two genes. In mouse islets and early passage MIN6 cells, expression of ins 1 and ins 2 were found to be approximately equal, but levels of ins 1 mRNA diminished rapidly with continued passage. Furthermore, the ins 1 gene was found to be up-regulated in response to glucose stimulation and as a result of increased cell–cell contact, but no effect on the ins 2 gene was observed. Since the MIN6 cell line is frequently used as a β-cell model for gene expression studies, consideration should be given to both insulin genes.
doi_str_mv 10.1016/S0006-291X(02)00913-0
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subjects Animals
Cell Communication
Cell Culture Techniques
Cell Line, Transformed
Cells, Cultured
Gene expression
Gene Expression Regulation
Glucose - pharmacology
ins 1
ins 2
Insulin - biosynthesis
Insulin - genetics
Insulinoma
Islets of Langerhans - drug effects
Islets of Langerhans - metabolism
Mice
MIN6
Mouse
mRNA
PCR
Pseudoislet
RNA, Messenger - biosynthesis
Transcription, Genetic
title Differential expression of insulin genes 1 and 2 in MIN6 cells and pseudoislets
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