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The p38 mitogen-activated protein kinase (MAPK) pathway plays an important role in the post-transcriptional regulation of inflammatory genes. p38 has been found to regulate both the translation and the stability of inflammatory mRNAs. The mRNAs regulated by p38 share common AU-rich elements (ARE) present in their 3'-untranslated regions. AREs act as mRNA instability determinants but also confer stabilisation of the mRNA by the p38 pathway. In recent years, AREs have shown to be binding sites for numerous proteins including HuR, TTP, AUF1, AUF2, FBP1, FBP2 (KSRP), TIA-1, and TIAR. However, it is unclear which protein is responsible for mRNA stabilisation by p38. This review gives an overview of the major ARE-binding proteins and discusses reasons for and against their involvement in p38-mediated mRNA stabilisation.

Original publication

DOI

10.1016/j.cellsig.2004.04.006

Type

Journal article

Journal

Cell Signal

Publication Date

10/2004

Volume

16

Pages

1113 - 1121

Keywords

Animals, Humans, MAP Kinase Signaling System, Protein Binding, RNA Stability, RNA, Messenger, Transcription Factors, p38 Mitogen-Activated Protein Kinases