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Epigenetic modifications: An important mechanism in diabetic disturbances
Anna Rorbach-Dolata1, Adriana Kubis1, Agnieszka Piwowar1
1Katedra i Zakład Toksykologii, Uniwersytet Medyczny im. Piastów Śląskich we Wrocławiu.
Postepy Higieny I Medycyny Doswiadczalnej (Online)
|December 12, 2017
Summary
Epigenetic modifications, including DNA methylation and histone changes, play a crucial role in diabetes development and its vascular complications, even with good metabolic control. These epigenetic changes transmit information about hyperglycemia, offering potential biomarkers and therapeutic targets.
Area of Science:
- Endocrinology
- Genetics
- Molecular Biology
Background:
- Diabetes pathomechanisms and vascular complications are not fully understood despite metabolic control.
- Epigenetic inheritance, involving modifications to DNA and histone proteins, is increasingly recognized in hyperglycemia.
- These modifications can alter cellular function without changing the underlying gene sequence.
Purpose of the Study:
- To investigate the role of epigenetic modifications in the development of diabetes and its vascular complications.
- To explore the significance of DNA methylation and histone modifications in hyperglycemia-induced changes.
- To identify potential prognostic biomarkers and therapeutic targets for diabetes.
Main Methods:
- Analysis of DNA methylation patterns in pancreatic cells.
- Examination of histone protein epigenetic modifications (methylation, acetylation) in relation to hyperglycemia.
- Investigation of epigenetic modifications on mitochondrial DNA.
- Assessment of enzymes involved in epigenetic processes, such as methylases.
Main Results:
- DNA methylation and histone epigenetic modifications significantly contribute to transmitting hyperglycemia-induced information.
- DNA methylation in pancreatic cells is implicated in both type 1 and type 2 diabetes pathogenesis.
- Intrauterine growth restriction (IUGR) is linked to subsequent diabetes development via DNA methylation changes.
- Epigenetic modifications of mitochondrial DNA are crucial in type 2 diabetes and microvascular complications.
- Histone protein modifications, particularly methylation and acetylation on arginine and lysine, are frequent and important in diabetic disturbances.
Conclusions:
- Epigenetic modifications are key players in diabetes pathogenesis and vascular complications.
- Epigenetic markers in DNA or histone proteins may serve as future prognostic biomarkers for diabetes susceptibility.
- These epigenetic alterations represent potential targets for novel therapeutic interventions in diabetes management.
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