Divergent intracellular pathways regulate interleukin-1β-induced miR-146a and miR-146b expression and chemokine release in human alveolar epithelial cells
Perry, M. M., Williams, A. E., Tsitsiou, E., Larner-Svensson, H. M. and Lindsay, M. A., 2009. Divergent intracellular pathways regulate interleukin-1β-induced miR-146a and miR-146b expression and chemokine release in human alveolar epithelial cells. FEBS Letters, 583 (20), pp. 3349-3355.
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We have previously reported that IL-β-induced miR-146a and miR-146b expression negatively regulates IL-8 and RANTES release in human alveolar A549 epithelial cells. To determine the intracellular pathways that regulate this response, we demonstrate IL-1β-induced activation of the nuclear factor (NF)-κB, extracellular regulated kinase (ERK)-1/2, c-jun N-terminal kinase (JNK)-1/2 and p38 mitogen activated kinase (MAP) kinase pathways. Subsequent pharmacological studies show that IL-1β-induced miR-146a, IL-8 and RANTES production was regulated via NF-κB and JNK-1/2 whilst miR-146b expression was mediated via MEK-1/2 and JNK-1/2. These divergent intracellular pathways likely explain the differential expression and biological action of the miR-146 isoforms.
|Creators||Perry, M. M., Williams, A. E., Tsitsiou, E., Larner-Svensson, H. M. and Lindsay, M. A.|
|Departments||Faculty of Science > Pharmacy & Pharmacology|
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