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Updated: Aug 21, 2025

Pan-myeloid Differentiation of Human Cord Blood Derived CD34+ Hematopoietic Stem and Progenitor Cells
Published on: August 9, 2019
Impact of myeloid differentiation protein 1 on cardiovascular disease
Xiaobo Jiang1, Peng Ning2, Fang Yan3
1Geriatric Diseases Institute of Chengdu, Department of Cardiology, Chengdu Fifth People's Hospital, Chengdu 611137, China; The Second Clinical Medical College, Affiliated Fifth People's Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
Insights
Myeloid differentiation protein 1 (MD1) is crucial in cardiovascular disease. Reduced MD1 levels are linked to cardiac remodeling and poor outcomes, suggesting its potential as a therapeutic target.
Area of Science:
- Cardiovascular Pathophysiology
- Molecular Mechanisms of Cardiac Remodeling
- Inflammation and Immune Response in Heart Disease
Background:
- Cardiovascular diseases (CVDs) are a leading cause of global mortality, characterized by complex cardiac remodeling.
- Cardiac remodeling involves reactive oxygen species (ROS) and inflammation, contributing to heart failure and sudden cardiac death (SCD).
- Myeloid differentiation protein 1 (MD1), a component of the MD1-RP105 complex, regulates inflammation and vascular remodeling.
Purpose of the Study:
- To review the current understanding of Myeloid differentiation protein 1 (MD1)'s role in cardiovascular pathophysiology.
- To explore the potential clinical significance of MD1 in cardiovascular diseases.
Main Methods:
- Literature review of studies investigating MD1 in the context of cardiovascular disease.
- Analysis of existing research on MD1's involvement in inflammation and cardiac remodeling pathways.
Main Results:
- Evidence suggests MD1 expression is decreased in hypertrophic cardiomyopathy (HCM) patients compared to controls.
- The MD1-RP105 complex is implicated in modulating vascular remodeling and atherosclerotic plaque development.
- Reduced MD1 may contribute to pathological cardiac remodeling processes.
Conclusions:
- Myeloid differentiation protein 1 (MD1) plays a significant role in regulating cardiac pathophysiology.
- Decreased MD1 levels are associated with cardiovascular disease, particularly HCM.
- MD1 holds potential as a biomarker or therapeutic target for cardiovascular diseases.
Abstract:
Cardiovascular disease remains the leading cause of disability and mortality worldwide and a significant global burden. Many lines of evidence suggest complex remodeling responses to cardiovascular disease, such as myocardial ischemia, hypertension and valve disease, which lead to poor clinical outcomes, including heart failure, arrhythmia and sudden cardiac death (SCD). The mechanisms underlying cardiac remodeling are closely related to reactive oxygen species (ROS) and inflammation. Myeloid differentiation protein 1 (MD1) is a secreted glycoprotein known as lymphocyte antigen 86. The complex of MD1 and radioprotective 105 (RP105) is an important regulator of inflammation and is involved in the modulation of vascular remodeling and atherosclerotic plaque development. A recent study suggested that the expression of MD1 in hypertrophic cardiomyopathy (HCM) patients is decreased compared with that in donor hearts. Therefore, MD1 may play an important role in the pathological processes of cardiovascular disease and have potential clinical value. Here, this review aims to discuss the current knowledge regarding the role of MD1 in the regulation of cardiac pathophysiology.
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