Epigenetic Mechanisms Implicated in the Pathogenesis of Systemic Lupus Erythematosus Disease: A Topic Review
DOI:
https://doi.org/10.17533/udea.iatreia.330Keywords:
Acetylation, Epigenomic, Methylation, MicroRNA, Systemic Lupus ErythematosusAbstract
Introduction: Systemic Lupus Erythematosus (SLE) is a prevalent autoimmune disease characterized by a dysregulated immune response against multiple autoantigens. The etiology of SLE is complex and multifactorial, and epigenetics has emerged as a relevant factor associated with the onset of clinical manifestations.
Objective: To analyze and describe the epigenetic mechanisms associated with the pathophysiology of SLE.
Methods: A literature review was conducted to identify associations between epigenetic mechanisms and the pathophysiology of SLE, with emphasis on the recognition of key markers.
Results: Downregulation of DNA methylation allows the expression of genes that increase susceptibility to autoantigen presentation and autoantibody generation. Likewise, modifications of histones H3K4me1 and H3Kme2 facilitate chromatin decondensation, enhancing the transcription of genes that promote cell growth and proliferation, such as CDKN2A, PTPN22, and LRP1B, while condensing the chromatin of regulatory genes such as RUNX3. Finally, miR-146a, miR-21, and miR-148a are associated with abnormal inflammatory cascades, alterations in the interferon pathway, and DNA methylation.
Conclusions: Epigenetic mechanisms are key determinants in the onset of autoimmune diseases and reflect the environmental susceptibility observed in these conditions.
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