miRNA125b Downregulation: A Review of the Novel Paradigm of Psoriasis Epigenetic Regulation

Cureus. 2020 Jan 28;12(1):e6798. doi: 10.7759/cureus.6798.

Abstract

MicroRNAs (miRNAs) are small, non-protein coding ribonucleic acids (RNAs) that play a critical role in the regulation of gene expression. Change in miRNA expression has been identified in various diseases, including psoriasis. Our narrative review provides an updated overview of current research on miRNA125b and its role in psoriasis pathogenesis. We used the keywords "psoriasis, "microRNA," "miRNA," "miR," and "stRNA" to identify and select studies in PubMed, CINAHL, and Scopus databases from inception to March 2018. The references cited by the retrieved literature were reviewed to broaden our search results. miRNA125b downregulation leads to aberrant proliferation and differentiation of keratinocytes, which is a primary pathology found in psoriasis. Understanding the epigenetic alteration of miRNA125b expression and its underlying molecular mechanisms will help in identifying pathogenesis, diagnosis, and possibly curative treatment of psoriasis in the future.

Keywords: epigenetic; genetic; mechanism; mirna; molecular; pathogenesis; psoriasis; review; rna; skin.

Publication types

  • Review