Epigenetic Changes Induced by Maternal Factors during Fetal Life: Implication for Type 1 Diabetes
Ilaria Barchetta1, Jeanette Arvastsson2, Luis Sarmiento2
1Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy.
Genes
|July 2, 2021
Summary
Maternal environmental factors during fetal development can alter offspring DNA methylation, increasing the risk of autoimmune diseases like type 1 diabetes (T1D). Understanding these epigenetic changes is key for T1D prevention.
Area of Science:
- Immunology
- Epigenetics
- Endocrinology
Background:
- Organ-specific autoimmune diseases, including type 1 diabetes (T1D), stem from T-cell-mediated tissue damage.
- Disease pathogenesis involves complex genetic and environmental interactions, with mechanisms of environmental influence remaining unclear.
- Early life environmental exposures, particularly prenatal maternal factors, can induce epigenetic changes impacting offspring's long-term immune system development and disease susceptibility.
Purpose of the Study:
- To review the role of DNA methylation changes induced by prenatal maternal conditions in increasing offspring's risk of immune-mediated diseases.
- To focus on the specific contribution of these epigenetic alterations to the development of type 1 diabetes (T1D).
Main Methods:
- This is a review article, synthesizing existing research on DNA methylation and prenatal environmental factors.
- Focuses on human studies investigating epigenetic mechanisms in immune-mediated diseases, particularly T1D.
Main Results:
- Prenatal maternal conditions can induce epigenetic modifications, specifically DNA methylation changes, in the offspring.
- These DNA methylation alterations are linked to an increased risk of developing immune-mediated diseases, including T1D.
- The review highlights the critical role of these prenatal epigenetic changes in disease pathogenesis.
Conclusions:
- Epigenetic alterations, particularly DNA methylation, induced by the prenatal maternal environment are crucial in the development of immune-mediated diseases like T1D.
- Understanding these fetal epigenetic changes is vital for developing targeted prevention strategies for T1D.
- Modifying the maternal environment during pregnancy may offer a novel approach for preventing autoimmune diseases in offspring.
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