Regulation of Involucrin Gene Expression
June 2004
in “
Journal of Investigative Dermatology
”
Studysummary This review discusses the regulation of involucrin gene expression, focusing on transcription factors and signaling pathways, and reports no new experimental findings.
Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer
The document reviewed the regulation of involucrin gene expression, a key marker in keratinocyte differentiation. It highlighted the role of transcription factors and signaling cascades, including protein kinase C isoforms, Ras, MEKK1, MEK3, and a p38δ–ERK1/2 complex, in controlling involucrin expression. These factors bind to specific regions of the involucrin promoter, the distal- and proximal-regulatory regions, to regulate gene expression. The review also discussed how various agents like calcium, vitamin A, PKC activators, and antioxidants influence keratinocyte differentiation through these mechanisms. The involucrin gene's regulatory sequences were characterized, revealing essential DNA segments within the upstream-regulatory region necessary for appropriate gene expression.
