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Molecular Mechanism of Epidermal Barrier Dysfunction as Primary Abnormalities
1Department of Dermatology, College of Medicine, Dongguk University Ilsan Hospital, 814 Siksa-dong, Ilsandong-gu, Goyang-si, Gyeonggi-do 410-773, Korea.
International Journal of Molecular Sciences
|February 15, 2020
Summary
Epidermal barrier dysfunction, linked to eczema and skin disorders, involves complex molecular mechanisms. Understanding these epidermal barrier abnormalities is crucial for developing effective treatments.
Area of Science:
- Dermatology and Molecular Biology
- Skin Barrier Function Research
Background:
- Epidermal barrier integrity is vital for skin health, influenced by cell differentiation, proliferation, adhesion, and lipids.
- Dysfunction of the epidermal barrier is implicated in skin disorders like eczema, creating complex feedback loops with immunologic responses.
Purpose of the Study:
- To review the molecular mechanisms underlying epidermal barrier abnormalities.
- To categorize these mechanisms, focusing on epidermal calcium gradients, filaggrin, cornified envelopes, desquamation, and skin lipids.
Main Methods:
- Literature review focusing on molecular mechanisms of epidermal barrier dysfunction.
- Inclusion of mechanisms related to ichthyoses, atopic dermatitis, and early experimental irritation.
- Exclusion of mechanisms resulting from pre-existing skin disorders.
Main Results:
- Molecular mechanisms of epidermal barrier dysfunction are often episodic and studied in cell cultures or animal models.
- Key factors include epidermal calcium gradients, filaggrin, cornified envelopes, desquamation, and skin lipids.
- Increasing research highlights the relationships between causative molecules.
Conclusions:
- A comprehensive understanding of epidermal barrier dysfunction requires further systematic data on target molecules and their interactions.
- Elucidating these molecular pathways is essential for advancing dermatological treatments.
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