The role of the OVOL1-OVOL2 axis in normal and diseased human skin

J Dermatol Sci. 2018 Jun;90(3):227-231. doi: 10.1016/j.jdermsci.2018.02.005. Epub 2018 Feb 12.

Abstract

OVOLs (OVO-like proteins) are ubiquitously conserved genes encoding a C2H2 zinc finger transcription factor in mammals. Functional studies on OVOL1 and OVOL2 using knockout mice have suggested that these genes play a pivotal role in the development of epithelial tissues arising from germ cells; however, the role of the OVOL1-OVOL2 axis in normal and diseased tissues remains unclear. This review highlights recent advances in understanding how the OVOL1-OVOL2 axis modulates cell differentiation and proliferation in human keratinocytes, hair follicles, and benign or malignant skin tumors including squamous cell carcinoma and malignant melanoma. Furthermore, OVOL1 has been shown to be involved in the expression of skin barrier proteins including filaggrin (FLG), and its mutation or dysfunction leads to the development of atopic dermatitis (AD). OVOL1 has also been identified as a susceptibility gene for AD by genome-wide association studies, in addition to FLG. Therefore, we discuss the relationship between OVOL1 and FLG in the development of AD.

Keywords: Aryl hydrocarbon receptor (AHR); Atopic dermatitis; Cutaneous squamous cell carcinoma; OVOL1; OVOL2.

Publication types

  • Review

MeSH terms

  • Animals
  • Cell Differentiation / physiology
  • Cell Proliferation / physiology
  • DNA-Binding Proteins / genetics
  • DNA-Binding Proteins / metabolism*
  • Dermatitis, Atopic / genetics*
  • Dermatitis, Atopic / pathology
  • Filaggrin Proteins
  • Genetic Predisposition to Disease
  • Humans
  • Intermediate Filament Proteins / genetics
  • Intermediate Filament Proteins / metabolism
  • Keratinocytes / metabolism
  • Mice
  • Neoplasm Invasiveness / genetics
  • Neoplasm Invasiveness / pathology
  • Skin / cytology
  • Skin / metabolism*
  • Skin Neoplasms / genetics
  • Skin Neoplasms / pathology*
  • Transcription Factors / genetics
  • Transcription Factors / metabolism*

Substances

  • DNA-Binding Proteins
  • FLG protein, human
  • Filaggrin Proteins
  • Intermediate Filament Proteins
  • OVOL1 protein, human
  • Ovol2 protein, human
  • Transcription Factors