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[The keratinocyte--a biologically active cell].
Dermatologische Monatschrift
|January 1, 1990
Summary
Human epidermal keratinocytes perform classical functions and also exhibit immunological roles. This review details their phagocytosis, cytokine production, and expression of cell surface receptors, expanding on known keratinocyte functions.
Area of Science:
- Dermatology
- Immunology
- Cell Biology
Context:
- Human epidermal keratinocytes are primarily known for keratin synthesis and stratum corneum formation.
- Recent research has uncovered novel immunological functions of these cells.
- Understanding these roles is crucial for comprehending skin immunity and disease.
Purpose:
- To review the recently discovered immunological functions of human epidermal keratinocytes.
- To describe their capabilities in phagocytosis, cytokine production, and cell surface receptor expression.
- To consolidate current knowledge on keratinocyte immune roles for researchers.
Summary:
- This review covers the immunological functions of human epidermal keratinocytes beyond their classical roles.
- It details keratinocyte involvement in phagocytosis and the secretion of various cytokines, including interleukins (IL-1, IL-3, IL-6, IL-8), colony-stimulating factors (CSF), endothelial cell-derived growth factors (ECDF), and interferons (IFN).
- The expression of key cell surface receptors such as HLA-DR, ICAM-1, and Fc-gamma receptors is also discussed, highlighting their immune relevance.
Impact:
- Expands the understanding of keratinocyte biology and their contribution to skin immunity.
- Provides a foundation for investigating keratinocyte-mediated inflammatory and immune responses.
- May inform therapeutic strategies targeting skin inflammation and immune disorders.