Corneocyte desquamation
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Updated: Oct 15, 2026

Cultivating a Three-dimensional Reconstructed Human Epidermis at a Large Scale
Published on: May 28, 2021
G E Pierard1, V Goffin, T Hermanns-Le
1Department of Dermatopathology, CHU Sart Tilman, B-4000 Liege, Belgium.
Abstract:
Corneocyte desquamation at the skin surface is a complex biologic event which is normally regulated for providing an inconspicuous shedding of single corneocytes. When altered, the process gives rise to xerotic and ichthyotic conditions. The present review focusses on important biologic and molecular aspects responsible for normal and altered corneocyte desquamation. There is a complex relationship between epidermal cell production, maturation and desquamative loss. Corneocyte hydration, stratum corneum barrier function and enzymatic corneodesmolysis are involved in a dynamic interrelationship. Many physiological and environmental factors acting in a different time frame influence desquamation.
Insights
Corneocyte desquamation, the skin
Area of Science:
- Dermatology and Skin Biology
- Cell Biology
- Biochemistry
Background:
- Corneocyte desquamation is a crucial skin process for shedding dead cells.
- Altered desquamation leads to skin conditions like xerosis and ichthyosis.
- Understanding desquamation is key to managing various dermatological disorders.
Purpose of the Study:
- To review the biological and molecular mechanisms of normal and altered corneocyte desquamation.
- To explore the interplay between epidermal homeostasis and desquamation.
- To identify factors influencing the desquamation process.
Main Methods:
- Literature review of biological and molecular aspects of corneocyte desquamation.
- Analysis of the relationship between epidermal cell dynamics and desquamation.
- Examination of factors affecting stratum corneum barrier function and enzymatic corneodesmolysis.
Main Results:
- Corneocyte desquamation is a tightly regulated process involving epidermal cell production, maturation, and loss.
- Corneocyte hydration, barrier function, and enzymatic corneodesmolysis are dynamically interrelated.
- Physiological and environmental factors significantly influence desquamation timing and efficacy.
Conclusions:
- Normal corneocyte desquamation ensures inconspicuous shedding of single cells.
- Dysregulation of desquamation contributes to pathological skin conditions.
- Further research into the complex factors governing desquamation can inform therapeutic strategies for skin disorders.
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