Research

Rapid changes in microRNA-146a expression negatively regulate the IL-1β-induced inflammatory response in human lung alveolar epithelial cells


Reference:

Perry, M. M., Moschos, S. A., Williams, A. E., Shepherd, N. J., Larner-Svensson, H. M. and Lindsay, M. A., 2008. Rapid changes in microRNA-146a expression negatively regulate the IL-1β-induced inflammatory response in human lung alveolar epithelial cells. The Journal of Immunology, 180 (8), pp. 5689-5698.

Related documents:

This repository does not currently have the full-text of this item.
You may be able to access a copy if URLs are provided below. (Contact Author)

Official URL:

http://www.jimmunol.org/content/180/8/5689.long

Related URLs:

Abstract

Posttranscriptional regulation of gene expression by microRNAs (miRNAs) has been implicated in the regulation of chronic physiological and pathological responses. In this report, we demonstrate that. changes in the expression of miRNAs can also regulate acute inflammatory responses in human lung alveolar epithelial cells. Thus, stimulation with IL-1 beta results in a rapid time- and concentration-dependent increase in miRNA-146a and, to a lesser extent, miRNA-146b expression, although these increases were only observed at high IL-1 beta concentration. Examination of miRNA function by overexpression and inhibition showed that increased miRNA-146a expression negatively regulated the release of the proinflammatory. chemokines IL-8 and RANTES. Subsequent examination of the mechanism demonstrated that the action of miRNA-146a was mediated at the translational level and not through the down-regulation of proteins involved in the IL-1 beta signaling pathway or chemokine transcription or secretion. Overall, these studies indicate that rapid increase in miRNA-146a expression provides a novel mechanism for the negative regulation of severe inflammation during the innate immune response.

Details

Item Type Articles
CreatorsPerry, M. M., Moschos, S. A., Williams, A. E., Shepherd, N. J., Larner-Svensson, H. M. and Lindsay, M. A.
Related URLs
URLURL Type
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2639646PubMedCentral
Uncontrolled Keywordsin-vivo, translation, specificity, gene-expression, repression, initiation, immune-responses, activation, interleukin-1 receptor, receptor-associated kinase
DepartmentsFaculty of Science > Pharmacy & Pharmacology
RefereedYes
StatusPublished
ID Code24572

Export

Actions (login required)

View Item