15-hydroxyeicosatetraenoic acid is a preferential peroxisome proliferator-activated receptor beta/delta agonist. 2010

Simone Naruhn, and Wolfgang Meissner, and Till Adhikary, and Kerstin Kaddatz, and Thomas Klein, and Bernhard Watzer, and Sabine Müller-Brüsselbach, and Rolf Müller
Institut für Molekularbiologie und Tumorforschung, Philipps-Universität Marburg, 35032 Marburg, Germany.

Peroxisome proliferator-activated receptor (PPARs) modulate target gene expression in response to unsaturated fatty acid ligands, such as arachidonic acid (AA). Here, we report that the AA metabolite 15-hydroxyeicosatetraenoic acid (15-HETE) activates the ligand-dependent activation domain (AF2) of PPARbeta/delta in vivo, competes with synthetic agonists in a PPARbeta/delta ligand binding assay in vitro, and triggers the interaction of PPARbeta/delta with coactivator peptides. These agonistic effects were also seen with PPARalpha and PPARgamma, but to a significantly weaker extent. We further show that 15-HETE strongly induces the expression of the bona fide PPAR target gene Angptl4 in a PPARbeta/delta-dependent manner and, conversely, that inhibition of 15-HETE synthesis reduces PPARbeta/delta transcriptional activity. Consistent with its function as an agonistic ligand, 15-HETE triggers profound changes in chromatin-associated PPARbeta/delta complexes in vivo, including the recruitment of the coactivator cAMP response element-binding protein binding protein. Both 15R-HETE and 15S-HETE are similarly potent at inducing PPARbeta/delta coactivator binding and transcriptional activation, indicating that 15-HETE enantiomers generated by different pathways function as PPARbeta/delta agonists.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D003412 Cricetulus A genus of the family Muridae consisting of eleven species. C. migratorius, the grey or Armenian hamster, and C. griseus, the Chinese hamster, are the two species used in biomedical research. Hamsters, Armenian,Hamsters, Chinese,Hamsters, Grey,Armenian Hamster,Armenian Hamsters,Chinese Hamster,Chinese Hamsters,Grey Hamster,Grey Hamsters,Hamster, Armenian,Hamster, Chinese,Hamster, Grey
D005347 Fibroblasts Connective tissue cells which secrete an extracellular matrix rich in collagen and other macromolecules. Fibroblast
D006224 Cricetinae A subfamily in the family MURIDAE, comprising the hamsters. Four of the more common genera are Cricetus, CRICETULUS; MESOCRICETUS; and PHODOPUS. Cricetus,Hamsters,Hamster
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006893 Hydroxyeicosatetraenoic Acids Eicosatetraenoic acids substituted in any position by one or more hydroxy groups. They are important intermediates in a series of biosynthetic processes leading from arachidonic acid to a number of biologically active compounds such as prostaglandins, thromboxanes, and leukotrienes. HETE,Acids, Hydroxyeicosatetraenoic
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015534 Trans-Activators Diffusible gene products that act on homologous or heterologous molecules of viral or cellular DNA to regulate the expression of proteins. Nuclear Trans-Acting Factor,Trans-Acting Factors,Trans-Acting Factor,Trans-Activator,Transactivator,Transactivators,Factor, Nuclear Trans-Acting,Factor, Trans-Acting,Factors, Trans-Acting,Nuclear Trans Acting Factor,Trans Acting Factor,Trans Acting Factors,Trans Activator,Trans Activators,Trans-Acting Factor, Nuclear
D016466 CHO Cells CELL LINE derived from the ovary of the Chinese hamster, Cricetulus griseus (CRICETULUS). The species is a favorite for cytogenetic studies because of its small chromosome number. The cell line has provided model systems for the study of genetic alterations in cultured mammalian cells. CHO Cell,Cell, CHO,Cells, CHO

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