Histone Modifications and DNA Methylation in Psoriasis: A Cellular Perspective.

In recent years, epigenetic modifications have attracted significant attention due to their unique regulatory mechanisms and profound biological implications. Acting as a bridge between environmental stimuli and changes in gene activity, they reshape gene expression patterns, providing organisms with regulatory mechanisms to respond to environmental changes. A growing body of evidence indicates that epigenetic regulation plays a crucial role in the pathogenesis and progression of psoriasis. A deeper understanding of these epigenetic mechanisms not only helps unveil the molecular mechanisms underlying the initiation and progression of psoriasis but may also provide new insights into diagnostic and therapeutic strategies. Given the unique roles and significant contributions of various cell types involved in the process of psoriasis, a thorough analysis of specific epigenetic patterns in different cell types becomes a key entry point for elucidating the mechanisms of disease development. Although epigenetic modifications encompass multiple complex layers, this review will focus on histone modifications and DNA methylation, describing how they function in different cell types and subsequently impact the pathophysiological processes of psoriasis. Finally, we will summarize the current problems in research concerning histone modifications and DNA methylation in psoriasis and discuss the clinical application prospects and challenges of targeting epigenetic modifications as therapeutic strategies for psoriasis.