Mitochondrial dysfunction in the pathogenesis of endothelial dysfunction
Suresh Kumar Prajapat1, Krushna Ch Maharana1, Sanjiv Singh2
1National Institute of Pharmaceutical Education and Research, Export Promotion Industrial Park (EPIP) Zandaha Road, Hajipur, Bihar, India.
Insights
Mitochondrial dysfunction contributes to cardiovascular diseases (CVDs) and endothelial dysfunction. Understanding these mechanisms can lead to new biomarkers and treatments for CVDs.
Area of Science:
- Biochemistry
- Cardiology
- Cell Biology
Background:
- Cardiovascular diseases (CVDs) are a global health concern, with mitochondrial dysfunction as a key contributor.
- Endothelial dysfunction, characterized by abnormal signaling and inflammation, plays a crucial role in atherosclerosis development.
- Mitochondria generate ATP and produce reactive oxygen species (ROS), impacting cellular function and vascular health.
Purpose of the Study:
- To elucidate the role of mitochondrial mechanisms in modulating endothelial dysfunction.
- To explore mitochondrial dysfunction as a potential biomarker for CVD risk assessment and diagnosis.
- To review therapeutic strategies targeting mitochondrial dysfunction for endothelial dysfunction.
Main Methods:
- Review of current literature on mitochondrial dysfunction and endothelial dysfunction.
- Analysis of molecular mechanisms linking mitochondrial dynamics to endothelial cell function.
- Examination of diagnostic approaches and therapeutic interventions.
Main Results:
- Increased mitochondrial ROS generation and altered mitochondrial dynamics are linked to endothelial dysfunction and CVDs.
- Mitochondrial dysfunction affects nitric oxide bioavailability and endothelial cell signaling.
- Several therapeutic targets and drug classes show potential for mitigating mitochondrial dysfunction.
Conclusions:
- Mitochondrial dysfunction is a significant factor in endothelial dysfunction and cardiovascular diseases.
- Identifying mitochondrial dysfunction biomarkers could improve CVD risk assessment.
- Targeting mitochondrial pathways offers promising therapeutic avenues for treating endothelial dysfunction.
Abstract:
Cardiovascular diseases (CVDs) are a matter of concern worldwide, and mitochondrial dysfunction is one of the major contributing factors. Vascular endothelial dysfunction has a major role in the development of atherosclerosis because of the abnormal chemokine secretion, inflammatory mediators, enhancement of LDL oxidation, cytokine elevation, and smooth muscle cell proliferation. Endothelial cells transfer oxygen from the pulmonary circulatory system to the tissue surrounding the blood vessels, and a majority of oxygen is transferred to the myocardium by endothelial cells, which utilise a small amount of oxygen to generate ATP. Free radicals of oxide are produced by mitochondria, which are responsible for cellular oxygen uptake. Increased mitochondrial ROS generation and reduction in agonist-stimulated eNOS activation and nitric oxide bioavailability were directly linked to the observed change in mitochondrial dynamics, resulting in various CVDs and endothelial dysfunction. Presently, the manuscript mainly focuses on endothelial dysfunction, providing a deep understanding of the various features of mitochondrial mechanisms that are used to modulate endothelial dysfunction. We talk about recent findings and approaches that may make it possible to detect mitochondrial dysfunction as a potential biomarker for risk assessment and diagnosis of endothelial dysfunction. In the end, we cover several targets that may reduce mitochondrial dysfunction through both direct and indirect processes and assess the impact of several different classes of drugs in the context of endothelial dysfunction.
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