The PPARs (peroxisome-proliferator-activated receptors) α, β/δ and γ belong to the nuclear hormone receptor superfamily. While all three receptors are undetectable in adult mouse interfollicular epidermis, PPARβ expression and activity is strongly re-activated by inflammatory stimuli during epidermal injury. The pro-inflammatory cytokine TNFα (tumour necrosis factor α) stimulates transcription ...

Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors involved in the transcriptional regulation of key metabolic pathways such as lipid metabolism, adipogenesis, and insulin sensitivity. More recent work implicates all 3 PPAR isotypes (alpha, gamma, and delta, also known as beta or beta/delta) in inflammatory and atherosclerotic pathways. Because these ...

The peroxisome proliferator-activated receptors (PPARalpha, PPARdelta, and PPARgamma) constitute a family of nuclear receptors that regulates metabolic processes involved in lipid and glucose homeostasis. Although generally considered to function as ligand-regulated receptors, all three PPARs exhibit a high level of constitutive activity that may result from their stimulation by intracellularly...

BACKGROUND Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors and commonly play an important role in the regulation of lipid homeostasis. To identify human PPARs-responsive genes, we established tetracycline-regulated human hepatoblastoma cell lines that can be induced to express each human PPAR and investigated the gene expression profiles of these c...

In several species, a family of nuclear receptors, the peroxisome proliferator-activated receptors (PPARs) composed of three isotypes, is expressed in somatic cells and germ cells of the ovary as well as the testis. Invalidation of these receptors in mice or stimulation of these receptors in vivo or in vitro showed that each receptor has physiological roles in the gamete maturation or the embry...

Increasing evidence suggests that common environmental contaminants can act as endocrine disrupters in fish. However, current data are biased towards environmental estrogens, highlighting the need to elucidate potential pollutant impact on other endocrine axes. Here, we report a high-throughput assay to identify chemicals interacting with piscine peroxisome proliferator-activated receptors (PPA...

The peroxisome proliferator-activated receptors (PPARs) have been shown to be important in modulating vascular inflammation and atherosclerosis. Angiotensin II (Ang II) is known to promote vascular inflammation and accelerate atherosclerosis. We demonstrated that these vascular changes induced by Ang II are associated with up-regulation of pro-inflammatory genes, as well as down-regulation of P...

The peroxisome proliferator-activated receptor superfamily (PPARs) comprises a class of nuclear receptors with significant effects in regulating multiple cellular pathways. Much research and clinical interest has surrounded the PPAR-gamma isoform because of its key role in the transcriptional regulation of metabolic pathways and the efficacy of thiazolidinediones, the most clinically used PPAR-...

The nuclear peroxisome proliferator-activated receptors (PPARs) alpha, beta, and gamma activate the transcription of multiple genes involved in lipid metabolism. Several natural and synthetic ligands have been identified for each PPAR isotype but little is known about the phosphorylation state of these receptors. We show here that activators of protein kinase A (PKA) can enhance mouse PPAR acti...