Reproducibility of targeted gene expression measurements in human islets of Langerhans

Barry, R., Tadayyon, M. and Green, I.C. (2002) Reproducibility of targeted gene expression measurements in human islets of Langerhans Biochemical and biophysical research communications, 298 (3). pp. 350-356. ISSN 0006-291X

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Abstract

The expression of 47 genes involved in the biosynthesis and secretion of insulin, apoptosis, and cellular stress was evaluated in isolated human islets using cDNA probes arrayed on nitrocellulose membranes. Isolated human islets were cultured for four days, or one month, with glucose present at a concentration of either 5.5 or 16.7 mmol/L. Extracted islet total RNA was used to generate [32P]dATP-labelled complex cDNA targets and hybridised with immobilised cDNA arrays. The positive expression of 45 mRNA transcripts in isolated human islets was documented. The coefficient of variance for relative levels of expression of transcripts was <25% for 9, 25–50% for 22, and 50–100% for 10, indicating good reproducibility between islet preparations from five different human pancreas donors. This study demonstrates the utility of nitrocellulose-based cDNA arrays for a focused reproducible analysis of gene expression changes in human islets of Langerhans.

Item Type: Journal article
Uncontrolled Keywords: Human islets of Langerhans; Targeted gene expression; Glucotoxicity; Insulin secretion; Insulin synthesis; Oxidative stress; Radical scavenging; Cell signalling; Fas/FasL; Apoptosis
Subjects: C000 Biological and Biomedical Sciences > C700 Molecular Biology, Biophysics and Biochemistry
A000 Medicine > A300 Clinical Medicine
DOI (a stable link to the resource): 10.1016/S0006-291X(02)02457-9
Faculties: Faculty of Science and Engineering > School of Pharmacy and Biomolecular Sciences > Biomedical Materials
Faculty of Science and Engineering > School of Pharmacy and Biomolecular Sciences
Depositing User: editor spbs
Date Deposited: 29 Nov 2006
Last Modified: 08 Mar 2013 12:51
URI: http://eprints.brighton.ac.uk/id/eprint/571

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