Cyclin D1 Repression of Peroxisome Proliferator-Activated Receptor γ Expression and Transactivation

Nuclear receptor corepressor-dependent repression of peroxisome-proliferator-activated receptor delta-mediated transactivation.

The nuclear receptor corepressor (NCoR) was isolated as a peroxisome-proliferator-activated receptor (PPAR) delta interacting protein using the yeast two-hybrid system. NCoR interacted strongly with the ligand-binding domain of PPAR delta, whereas interactions with the ligand-binding domains of PPAR gamma and PPAR alpha were significantly weaker. PPAR-NCoR interactions were antagonized by ligan...

Cyclin D1 represses peroxisome proliferator-activated receptor alpha and inhibits fatty acid oxidation

Cyclin D1 is a cell cycle protein that promotes proliferation by mediating progression through key checkpoints in G1 phase. It is also a proto-oncogene that is commonly overexpressed in human cancers. In addition to its canonical role in controlling cell cycle progression, cyclin D1 affects other aspects of cell physiology, in part through transcriptional regulation. In this study, we find that...

Nitric Oxide Synthase Gene -Dependent Repression of the Inducible γ Peroxisome Proliferator-Activated Receptor

Effect of peroxisome proliferator-activated receptor γ on inflammatory markers

Introduction In a recent study published in “ARYA atherosclerosis,” Pourmoghaddas et al. reported that administration of pioglitzone in non-diabetic patients with metabolic syndrome had no positive effect on inflammatory markers including high sensitive C-reactive protein, interleukin-10 (IL-10), and tumor necrosis factor-α (TNF-α).1 Peroxisome proliferator-activated receptors (PPARs) are ligan...

Role of Peroxisome Proliferator-Activated Receptor-γ in Vascular Inflammation

Vascular inflammation plays a crucial role in atherosclerosis, and its regulation is important to prevent cerebrovascular and coronary artery disease. The inflammatory process in atherogenesis involves a variety of immune cells including monocytes/macrophages, lymphocytes, dendritic cells, and neutrophils, which all express peroxisome proliferator-activated receptor-γ (PPAR-γ). PPAR-γ is a nucl...