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Maternal Immune Activation: Implications for Congenital Heart Defects
Sixing Wang1,2, Zilin Mei1, Jin Chen1
1Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China.
Clinical Reviews in Allergy & Immunology
|April 2, 2025
Summary
Maternal immune activation (MIA) during pregnancy may significantly contribute to congenital heart defects (CHD) in offspring. Understanding MIA
Area of Science:
- Developmental Biology
- Immunology
- Cardiovascular Research
Background:
- Congenital heart defects (CHD) are the most common major birth defects and a leading cause of infant mortality.
- The maternal immune activation (MIA) hypothesis links maternal immune responses during pregnancy to offspring neurodevelopmental and other health issues.
- Immune cells and cytokines are crucial for normal embryonic heart development.
Purpose of the Study:
- To explore the potential role of maternal immune activation (MIA) in the development of congenital heart defects (CHD).
- To identify knowledge gaps regarding the MIA-CHD relationship and stimulate further research.
- To review the impact of MIA in the context of pregnancy complications, maternal diseases, infections, and environmental factors.
Main Methods:
- This study is a review evaluating existing literature on MIA and CHD.
- It examines mechanisms involving immune cells, cytokines, placental development, and oxidative stress.
- The review synthesizes information on maternal and embryonic cardiac immuno-microenvironmental factors.
Main Results:
- Maternal immune activation can influence embryonic heart development through indirect regulation of the placental and cardiac immuno-microenvironment.
- Inflammatory cytokines associated with MIA can cross the placenta, inducing oxidative stress in the developing embryonic heart.
- Maternal factors, particularly immune status, play a critical role in embryonic heart development and CHD pathogenesis.
Conclusions:
- Maternal immune activation is a significant factor in the pathogenesis of congenital heart defects.
- Understanding the embryonic cardiac immuno-microenvironment is crucial for comprehending CHD development.
- Insights into MIA provide potential avenues for prenatal prevention and treatment strategies for CHD.
Keywords:
Congenital heart defectsEmbryonic cardiac immuno-microenvironmentEmbryonic heart developmentMaternal immune activationPregnancy complicationMore Related Videos
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