Abstract
IL-1beta is a candidate mediator of apoptotic beta cell destruction, a process that leads to type 1 diabetes and progression of type 2 diabetes. IL-1beta activates beta cell c-Jun N-terminal kinase (JNK), extracellular signal-regulated kinase (ERK) and p38, all of which are members of the mitogen-activated protein kinase (MAPK) family. Inhibition of JNK prevents IL-1beta-mediated beta cell destruction. In mouse embryo fibroblasts and 3DO T cells, overexpression of the gene encoding growth arrest and DNA-damage-inducible 45beta (Gadd45b) downregulates pro-apoptotic JNK signalling. The aim of this study was to investigate if Gadd45b prevents IL-1beta-induced beta cell MAPK signalling and apoptosis.
Original language | English |
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Journal | Diabetologia |
Volume | 49 |
Issue number | 5 |
Pages (from-to) | 980-9 |
Number of pages | 10 |
ISSN | 0012-186X |
DOIs | |
Publication status | Published - 1 May 2006 |
Keywords
- 3T3 Cells
- Animals
- Antigens, Differentiation
- Apoptosis
- Cell Division
- DNA Damage
- DNA Primers
- Extracellular Signal-Regulated MAP Kinases
- Gene Expression Regulation, Neoplastic
- Insulin
- Insulinoma
- Interleukin-1
- JNK Mitogen-Activated Protein Kinases
- Mice
- Pancreatic Neoplasms
- Rats
- Reverse Transcriptase Polymerase Chain Reaction
- Transfection