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| Content Provider | Journal of Biological Chemistry (JBC) |
|---|---|
| Author | Devchand, Pallavi R. Hihi, Abdelmadjid K. Perroud, Mai Schleuning, Wolf-Dieter D. Spiegelman, Bruce M. Wahli, Walter |
| Abstract | Peroxisome proliferator-activated receptor α (PPARα)is a nuclear receptor for various fatty acids, eicosanoids, and hypolipidemic drugs. In the presence of ligand, this transcription factor increases expression of target genes that are primarily associated with lipid homeostasis. We have previously reported PPARα as a nuclear receptor of the inflammatory mediator leukotriene B4 (LTB4) and demonstrated an anti-inflammatory function for PPARα in vivo (Devchand, P. R., Keller, H., Peters, J. M., Vazquez, M., Gonzalez, F. J., and Wahli, W. (1996) Nature 384, 39–43). LTB4 also has a cell surface receptor (BLTR) that mediates proinflammatory events, such as chemotaxis and chemokinesis (Yokomizo, T., Izumi, T., Chang, K., Takuwa, Y., and Shimizu, T. (1997)Nature 387, 620–624). In this study, we report on chemical probes that differentially modulate activity of these two LTB4 receptors. The compounds selected were originally characterized as synthetic BLTR effectors, both agonists and antagonists. Here, we evaluate the compounds as effectors of the three PPAR isotypes (α, β, and γ) by transient transfection assays and also determine whether the compounds are ligands for these nuclear receptors by coactivator-dependent receptor ligand interaction assay, a semifunctional in vitro assay. Because the compounds are PPARα selective, we further analyze their potency in a biological assay for the PPARα-mediated activity of lipid accumulation. These chemical probes will prove invaluable in dissecting processes that involve nuclear and cell surface LTB4 receptors and also aid in drug discovery programs. |
| Related Links | http://www.jbc.org/content/274/33/23341.abstract |
| Ending Page | 23348 |
| Starting Page | 23341 |
| Page Count | 8 |
| File Format | HTM / HTML PDF |
| ISSN | 00219258 |
| Journal | Journal of Biological Chemistry (JBC) |
| Issue Number | 33 |
| Volume Number | 274 |
| DOI | 10.1074/jbc.274.33.23341 |
| e-ISSN | 1083351X |
| Language | English |
| Publisher | American Society for Biochemistry and Molecular Biology |
| Publisher Date | 1999-08-13 |
| Access Restriction | Open |
| Subject Keyword | Peroxisome proliferator-activated receptor (PPAR) Leukotriene B4 (LTB4) BLTR agonist (BAg) BLTR antagonist (BAntag) 5-lipoxygenase (5-LO) Coactivator-dependent receptor ligand interaction assay (CARLA) Steroid receptor coactivator 1 (SRC-1) Ligand-induced complex (LIC) Glutathione S-transferase (GST) Ligand binding domain (LBD) Retinoid X acid receptor (RXR) Chloramphenicol acetyltransferase (CAT) CARBOHYDRATES, LIPIDS, AND OTHER NATURAL PRODUCTS |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Biochemistry Molecular Biology |
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