LPS Counter Regulates RNA Expression of Extracellular Proteases and Their Inhibitors in Murine Macrophages
Besides their evident importance in host defense, macrophages have been shown to play a detrimental role in different pathological conditions, including chronic inflammation, atherosclerosis, and cancer. Regardless of the exact situation, macrophage activation and migration are intimately connected...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Mediators of Inflammation |
| Online Access: | http://dx.doi.org/10.1155/2012/157894 |
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| _version_ | 1832546092740247552 |
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| author | Andreas Hald Birgitte Rønø Leif R. Lund Kristoffer L. Egerod |
| author_facet | Andreas Hald Birgitte Rønø Leif R. Lund Kristoffer L. Egerod |
| author_sort | Andreas Hald |
| collection | DOAJ |
| description | Besides their evident importance in host defense, macrophages have been shown to play a detrimental role in different pathological conditions, including chronic inflammation, atherosclerosis, and cancer. Regardless of the exact situation, macrophage activation and migration are intimately connected to extracellular matrix degradation. This process is accomplished by multiple proteolytic enzymes, including serine proteases and members of the matrix metalloproteinase family. In this study, we have utilized qPCR arrays to simultaneously analyze the temporal expression pattern of a range of genes involved in extracellular matrix metabolism in the mouse derived-macrophage cell line RAW 264.7 following stimulation with LPS. Our results revealed that LPS induces the expression of matrix metalloproteinases while at the same time decreased the expression of matrix metalloproteinase inhibitors. The opposite scenario was found for the genes encoding serine proteases, which were downregulated while their inhibitors were upregulated. In addition, intergenic comparison of the expression levels of related proteases revealed large differences in their basal expression level. These data highlight the complexity of the gene expression regulation implicated in macrophage-dependent matrix degradation and furthermore emphasize the value of qPCR array techniques for the investigation of the complex regulation of the matrix degradome. |
| format | Article |
| id | doaj-art-db170bfd292847ce969de387571b7f52 |
| institution | Kabale University |
| issn | 0962-9351 1466-1861 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Mediators of Inflammation |
| spelling | doaj-art-db170bfd292847ce969de387571b7f522025-02-03T07:23:52ZengWileyMediators of Inflammation0962-93511466-18612012-01-01201210.1155/2012/157894157894LPS Counter Regulates RNA Expression of Extracellular Proteases and Their Inhibitors in Murine MacrophagesAndreas Hald0Birgitte Rønø1Leif R. Lund2Kristoffer L. Egerod3The Finsen Laboratory, Rigshospitalet, Copenhagen Biocenter 2200 Copenhagen, DenmarkDepartment of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, 2200, Copenhagen, DenmarkDepartment of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, 2200, Copenhagen, DenmarkSection for Metabolic Receptology and Enteroendocrinolgy, Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, 2200 Copenhagen, DenmarkBesides their evident importance in host defense, macrophages have been shown to play a detrimental role in different pathological conditions, including chronic inflammation, atherosclerosis, and cancer. Regardless of the exact situation, macrophage activation and migration are intimately connected to extracellular matrix degradation. This process is accomplished by multiple proteolytic enzymes, including serine proteases and members of the matrix metalloproteinase family. In this study, we have utilized qPCR arrays to simultaneously analyze the temporal expression pattern of a range of genes involved in extracellular matrix metabolism in the mouse derived-macrophage cell line RAW 264.7 following stimulation with LPS. Our results revealed that LPS induces the expression of matrix metalloproteinases while at the same time decreased the expression of matrix metalloproteinase inhibitors. The opposite scenario was found for the genes encoding serine proteases, which were downregulated while their inhibitors were upregulated. In addition, intergenic comparison of the expression levels of related proteases revealed large differences in their basal expression level. These data highlight the complexity of the gene expression regulation implicated in macrophage-dependent matrix degradation and furthermore emphasize the value of qPCR array techniques for the investigation of the complex regulation of the matrix degradome.http://dx.doi.org/10.1155/2012/157894 |
| spellingShingle | Andreas Hald Birgitte Rønø Leif R. Lund Kristoffer L. Egerod LPS Counter Regulates RNA Expression of Extracellular Proteases and Their Inhibitors in Murine Macrophages Mediators of Inflammation |
| title | LPS Counter Regulates RNA Expression of Extracellular Proteases and Their Inhibitors in Murine Macrophages |
| title_full | LPS Counter Regulates RNA Expression of Extracellular Proteases and Their Inhibitors in Murine Macrophages |
| title_fullStr | LPS Counter Regulates RNA Expression of Extracellular Proteases and Their Inhibitors in Murine Macrophages |
| title_full_unstemmed | LPS Counter Regulates RNA Expression of Extracellular Proteases and Their Inhibitors in Murine Macrophages |
| title_short | LPS Counter Regulates RNA Expression of Extracellular Proteases and Their Inhibitors in Murine Macrophages |
| title_sort | lps counter regulates rna expression of extracellular proteases and their inhibitors in murine macrophages |
| url | http://dx.doi.org/10.1155/2012/157894 |
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