Abstract:
:The use of real-time reverse transcription polymerase chain reaction to compare gene expression in different tissues and conditions requires normalization to an internal control that must be expressed at a constant level. Although a previous validation step is required to confirm that an internal control is appropriate, no comparison of frequently used "housekeeping" genes is available for islet grafts. We have investigated the effect of transplantation and metabolic environment on the expression of 18S, glyceraldehyde-3-phosphate dehydrogenase (GAPDH), beta-actin, and cyclophilin A genes in pancreatic islets. The expression of these genes was determined on days 1, 3, and 7 after transplantation into normoglycemic or hyperglycemic rats and in isolated islets. Only 18S gene expression remained stable in all studied conditions, indicating that it is the best internal control for gene expression analysis in islet grafts. The significant variation found in other housekeeping genes, particularly GAPDH and beta-actin, question their use as internal controls in islet grafts.
journal_name
Transplantationjournal_title
Transplantationauthors
Rodriguez-Mulero S,Montanya Edoi
10.1097/01.tp.0000173790.12227.7bsubject
Has Abstractpub_date
2005-09-15 00:00:00pages
650-2issue
5eissn
0041-1337issn
1534-6080pii
00007890-200509150-00017journal_volume
80pub_type
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