Related Experiment Video
Updated: May 19, 2026

Visualization of Vascular Ca2+ Signaling Triggered by Paracrine Derived ROS
Published on: December 21, 2011
Role of Peroxisome Proliferator-Activated Receptor-γ in Vascular Inflammation
Kousei Ohshima1, Masaki Mogi, Masatsugu Horiuchi
1Department of Molecular Cardiovascular Biology and Pharmacology, Graduate School of Medicine, Ehime University, Shitsukawa, Ehime, Toon 791-0295, Japan.
Insights
Peroxisome proliferator-activated receptor-γ (PPAR-γ) activation regulates vascular inflammation, offering therapeutic potential for atherosclerosis and related cardiovascular diseases.
Area of Science:
- Cardiovascular Science
- Immunology
- Molecular Biology
Background:
- Vascular inflammation is central to atherosclerosis, a condition underlying cerebrovascular and coronary artery disease.
- Immune cells like macrophages and lymphocytes, crucial in atherogenesis, express peroxisome proliferator-activated receptor-γ (PPAR-γ).
- PPAR-γ, a nuclear receptor, regulates adipocyte differentiation and exhibits anti-inflammatory properties.
Purpose of the Study:
- To review the role of PPAR-γ in vascular inflammation.
- To explore the therapeutic potential of PPAR-γ activation in atherosclerosis.
Main Methods:
- Review of experimental and clinical studies on PPAR-γ.
- Analysis of PPAR-γ's involvement in immune cell function and lipid metabolism.
Main Results:
- PPAR-γ activation demonstrates anti-inflammatory effects.
- Synthetic PPAR-γ ligands (thiazolidinediones) show cardiovascular benefits beyond glycemic control.
- PPAR-γ is implicated in regulating lipid metabolism and immune responses in vascular inflammation.
Conclusions:
- PPAR-γ activation is a key regulator of vascular inflammation.
- Targeting PPAR-γ presents a promising therapeutic strategy for atherosclerotic complications.
- Modulating the immune system via PPAR-γ activation holds potential for treating atherosclerosis.
Abstract:
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 nuclear receptor and transcription factor in the steroid superfamily and is known to be a key regulator of adipocyte differentiation. Increasing evidence from mainly experimental studies has demonstrated that PPAR-γ activation by endogenous and synthetic ligands is involved in lipid metabolism and anti-inflammatory activity. In addition, recent clinical studies have shown a beneficial effect of thiazolidinediones, synthetic PPAR-γ ligands, on cardiovascular disease beyond glycemic control. These results suggest that PPAR-γ activation is an important regulator in vascular inflammation and is expected to be a therapeutic target in the treatment of atherosclerotic complications. This paper reviews the recent findings of PPAR-γ involvement in vascular inflammation and the therapeutic potential of regulating the immune system in atherosclerosis.
Related Concept Videos
Peroxisomes
Peroxisomes and Mitochondria
The peroxisome is a single membrane-bound cellular organelle that can perform several different functions, including lipid metabolism and chemical detoxification. The enzymes within peroxisomes...
Inflammatory Response I: Vascular and Cellular
Regulation of Angiogenesis and Blood Supply
Protein Import into the Peroxisomes
Peroxisomal Protein Import:
Peroxisomes lack the genetic machinery required to code for their own proteins. Hence, most peroxisomal membrane, lumenal and transmembrane proteins are synthesized in the cytoplasm or ER and transported to the peroxisome...
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
