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Cultivating a Three-dimensional Reconstructed Human Epidermis at a Large Scale

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Published on: May 28, 2021

Epidermal lipids, barrier function, and desquamation.

¹Dermatology Service, Veterans Administration Medical Center, and Department of Dermatology, University of California School of Medicine, San Francisco, California, U.S.A.

The Journal of Investigative Dermatology

|May 19, 2010

Summary

This summary is machine-generated.

This review proposes a two-compartment model for the stratum corneum, highlighting the critical role of intercellular lipids in skin barrier function and shedding. This model integrates recent data for a comprehensive understanding.

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Area of Science:

Dermatology
Biochemistry
Cell Biology

Background:

The stratum corneum is the outermost layer of the skin, providing a crucial barrier against environmental factors.
Its barrier function and desquamation (shedding) processes are complex and not fully understood.
Intercellular lipids are known components of the stratum corneum, but their precise regulatory role is debated.

Purpose of the Study:

To propose a novel, heterogeneous two-compartment model of the stratum corneum.
To elucidate the specific role of intercellular lipids in regulating skin barrier function.
To review existing evidence supporting this model and outline its predictive capabilities.

Main Methods:

Review and synthesis of recent morphologic data.
Analysis of histochemical findings related to stratum corneum structure.
Integration of biochemical data concerning intercellular lipids.

Main Results:

A heterogeneous two-compartment model of the stratum corneum is proposed.
Intercellular lipids are identified as key regulators of barrier function.
The model explains the interplay between barrier integrity and desquamation.

Conclusions:

The proposed model offers a new framework for understanding stratum corneum physiology.
Intercellular lipids are central to maintaining skin barrier homeostasis.
Further research can be guided by the predictions of this model.