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Updated: Aug 20, 2026
In Vitro Model of Coronary Angiogenesis
Published on: March 10, 2020
Myocardial angiogenesis
Eiji Toyota1, Toshiro Matsunaga, William M Chilian
1Department of Physiology, Louisiana State University Health Sciences Center, College of Medicine, New Orleans, LA 70112, USA.
Insights
Coronary angiogenesis and collateral growth restore blood flow to ischemic hearts. Key factors like vascular endothelial growth factor and angiopoietins are crucial for this adaptation, highlighting a balance between growth and inhibitory factors.
Area of Science:
- Cardiovascular Biology
- Molecular Medicine
- Physiology
Background:
- Myocardial ischemia triggers coronary angiogenesis and collateral growth to restore blood flow.
- The precise mechanisms, including specific factors, signaling pathways, and their temporal dynamics, remain incompletely understood.
- A balance between pro-angiogenic and anti-angiogenic factors is critical for successful adaptation.
Purpose of the Study:
- To review the pivotal roles of key factors in coronary angiogenesis and collateral growth.
- To elucidate the complex interplay of signaling pathways involved in the adaptation to myocardial ischemia.
- To highlight the importance of growth factors and inhibitors in restoring myocardial function.
Main Methods:
- This review synthesizes current literature on coronary angiogenesis and collateral growth.
- It focuses on the roles of vascular endothelial growth factor, angiopoietins, and angiostatin.
- The review discusses signaling cascades and interactions among pathways.
Main Results:
- Vascular endothelial growth factor (VEGF) is a key driver of angiogenesis.
- Angiopoietins and angiostatin modulate vascular development and stability.
- A coordinated action of multiple factors ensures effective adaptation to ischemia.
Conclusions:
- Coronary adaptations to ischemia involve a complex symphony of angiogenic and angiostatic factors.
- Vascular endothelial growth factor, angiopoietins, and angiostatin are central players in this process.
- Maintaining a balance between growth promotion and inhibition is essential for salvaging ischemic myocardium.
Abstract:
Coronary angiogenesis and collateral growth are chronic adaptations to myocardial ischemia, which are aimed at restoring coronary blood flow and salvaging myocardium in an ischemic region. Although we have assumed that myriad numbers of growth factors are involving in this adaptation, details in the underlying mechanisms, i.e., number of angiogenic factors, angiostatic factors, their receptors/signaling cascades, interactions/crosstalk among the signaling pathways and receptors, and the time course of expression/function of a particular factor or pathway during the successful adaptation are still unclear; they are, probably, harmonized like a symphony. Although there is as of yet no consensus about the mechanisms and causal factors for these cononary adaptations to ischemia, recent evidence strongly suggests that a balance between growth factors and growth inhibitors is critical. In this review we introduce vascular endothelial growth factor, angiopoietins, and angiostatin, as factors playing pivotal roles in coronary angiogenesis and collateral growth.
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