Making up or breaking up: the tortuous role of platelet-derived growth factor in vascular ageing
Xiao-Ping Yang1, Zhao-Hui Pei, Jun Ren
1Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, Wyoming 82071, USA.
Insights
Vascular smooth muscle cell (VSMC) proliferation, driven by platelet-derived growth factor (PDGF), is key to vascular ageing and cardiovascular disease. This review details PDGF's role in VSMC proliferation and ageing mechanisms.
Area of Science:
- Cardiovascular Science
- Vascular Biology
- Cellular Aging
Background:
- Aging is a major risk factor for cardiovascular diseases, leading to increased morbidity and mortality.
- Age-associated vascular remodeling includes changes in vessel wall structure and increased stiffness.
- Vascular smooth muscle cell (VSMC) migration and proliferation are critical in vascular aging.
Purpose of the Study:
- To review recent findings on the role of platelet-derived growth factor (PDGF) in VSMC proliferation.
- To elucidate the involvement of PDGF in the process of vascular aging.
- To emphasize the cell signaling pathways implicated in PDGF-mediated VSMC proliferation and vascular aging.
Main Methods:
- Literature review of experimental and clinical studies.
- Analysis of cell signaling mechanisms.
- Focus on the role of PDGF in VSMC proliferation.
Main Results:
- PDGF plays a crucial role in VSMC proliferation, an early sign of arteriosclerosis and vascular aging.
- Specific cell signaling pathways mediating PDGF's effects on VSMC are highlighted.
- Evidence links PDGF-driven VSMC proliferation to age-related vascular changes.
Conclusions:
- PDGF is a significant factor in VSMC proliferation and vascular aging.
- Understanding PDGF signaling pathways is vital for addressing age-related cardiovascular pathology.
- Further research into PDGF's role can inform therapeutic strategies for vascular aging.
Abstract:
1. Ageing has long been recognized as an independent risk factor for the development of cardiovascular diseases, contributing to high cardiovascular morbidity and mortality. Age-associated remodelling of the vascular wall includes luminal enlargement, intimal and medial thickening and vascular stiffness. 2. A growing body of evidence has indicated that the migration and proliferation of vascular smooth muscle cells (VSMC) play a pivotal role in the pathophysiological vascular ageing process. Both experimental and clinical evidence implicates platelet-derived growth factor (PDGF) as having an essential role in the proliferation of VSMC, an early pathological feature of arteriosclerosis and vascular ageing. 3. In the present review, we summarize some of the recent progress made with regard to defining the role of PDGF in the proliferation of VSMC and vascular ageing, with an emphasis on the cell signalling mechanisms involved.
Related Concept Videos
Regulation of Angiogenesis and Blood Supply
Structure and Function of Platelets
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000 platelets, with...
Role of Hematopoietic Growth Factors
Thrombopoietin (TPO), mainly released by the liver,...
Formation of the Platelet Plug
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
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...
Clot Retraction and Fibrinolysis
