Recent Advancements in CD47 Signal Transduction Pathways Involved in Vascular Diseases

Manman Dou1, Ying Chen1, Jian Hu1

  • 1Department of Neurology, The First Hospital of Jilin University, Changchun 130021, China.

Insights

Atherosclerosis underlies cardiovascular and cerebrovascular diseases. This review explores the TSP-1/CD47/VEGF/VEGFR2 pathway and inflammatory factors like IL-1 and NLRP3 as key players in atherosclerosis pathogenesis.

Area of Science:

  • Cardiovascular biology
  • Molecular mechanisms of disease
  • Inflammation research

Background:

  • Atherosclerosis leads to debilitating cardiovascular and cerebrovascular diseases.
  • Understanding atherosclerosis mechanisms is crucial for disease control and prevention.
  • Thrombospondin-1 (TSP-1) exhibits antiangiogenic properties, interacting with its receptor CD47.

Purpose of the Study:

  • To review the pathogenesis of atherosclerosis.
  • To elucidate the role of the TSP-1/CD47/VEGF/VEGFR2 signaling pathway in atherosclerosis.
  • To examine the influence of inflammatory factors on atherosclerosis progression.

Main Methods:

  • Literature review focusing on molecular and cellular mechanisms.
  • Analysis of signaling pathways involved in angiogenesis and inflammation.
  • Synthesis of current research on atherosclerosis pathogenesis.

Main Results:

  • TSP-1/CD47 signaling negatively regulates angiogenesis by affecting VEGF and its downstream targets.
  • The TSP-1/CD47/VEGF/VEGFR2 axis is implicated in the development and progression of atherosclerosis.
  • Inflammatory factors, including IL-1 and NLRP3, significantly impact atherosclerotic processes.

Conclusions:

  • The TSP-1/CD47/VEGF/VEGFR2 pathway represents a critical target for modulating atherosclerosis.
  • Inflammation plays a pivotal role in atherosclerosis pathogenesis.
  • Further research into these pathways may reveal novel therapeutic strategies for cardiovascular and cerebrovascular diseases.

Related Concept Videos

Regulation of Angiogenesis and Blood Supply01:24

Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
3.2K
Mechanism of Angiogenesis01:10

Mechanism of Angiogenesis

Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...
6.4K
Intracellular Signaling Affects Focal Adhesions01:17

Intracellular Signaling Affects Focal Adhesions

Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
3.3K
Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
748
Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
261
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
7.0K