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Members of the EGF receptor family in normal and pathological epidermis
1Cell and Tissue Laboratory, URPHYM University of Namur (FUNDP), Namur B-5000, Belgium. yves.poumay@fundp.ac.be
Abstract:
Epidermal growth factor (EGF) and analogs bind to transmembrane receptors that exhibit tyrosine kinase activity in their cytoplasmic domain and which belong to the EGF receptor family. These growth factors and relevant receptors were named after initial identification of the functions of their founding members in the epidermis. However, since the EGF receptor was recognized as an oncogene, it has been mainly analyzed in cancer; the members of the receptor's family were also found and characterized initially in tumors and cancer cells. The present article reviews mainly the expression and function of EGF receptor family members in normal epidermis, together with the expression and function of their respective ligands, and we extend the review to potential involvement of these systems in epidermal disease.
Insights
Epidermal growth factor (EGF) receptor family members are crucial in normal skin. This review explores their roles in skin health and disease, highlighting their functions beyond cancer research.
Area of Science:
- Dermatology
- Cell Biology
- Molecular Biology
Background:
- Epidermal growth factor (EGF) and its analogs interact with transmembrane receptors possessing tyrosine kinase activity.
- These receptors belong to the EGF receptor family, initially identified by their functions in the epidermis.
- The EGF receptor's oncogenic nature has led to extensive research in cancer, often overshadowing its role in normal skin.
Purpose of the Study:
- To review the expression and function of EGF receptor family members and their ligands in normal epidermis.
- To examine the potential involvement of these signaling systems in epidermal diseases.
Main Methods:
- Literature review focusing on scientific articles and research.
- Analysis of studies detailing the expression patterns of EGF receptor family members.
- Evaluation of functional studies concerning EGF receptor signaling pathways in epidermal cells.
Main Results:
- EGF receptor family members and their ligands are expressed and functional in normal epidermal tissue.
- These signaling pathways play significant roles in maintaining epidermal homeostasis.
- Dysregulation of these systems is implicated in the pathogenesis of various epidermal diseases.
Conclusions:
- The EGF receptor family has critical functions in normal epidermis, extending beyond its oncogenic roles.
- Understanding these functions is essential for comprehending epidermal development, maintenance, and disease.
- Targeting these pathways may offer therapeutic strategies for epidermal disorders.
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