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. 1992 Apr;140(4):915–925.

Epidermal growth factor receptors in idiopathic and virally induced skin diseases.

L B Nanney 1, D L Ellis 1, J Levine 1, L E King 1
PMCID: PMC1886376  PMID: 1532884

Abstract

The altered distribution of epidermal growth factor receptors (EGF-R) in hyperproliferative skin lesions such as psoriasis vulgaris, seborrheic keratoses, acanthosis nigricans, ichthyosis, and others implies aberrant control of growth/proliferation by epidermal growth factor (EGF), transforming growth factor alpha (TGF alpha), and other growth factors/cytokines. Whether overexpression of EGF-R: 1) correlates with epidermal proliferation, 2) serves as a hallmark of specific dermatoses, or 3) is due to modulation by multiple growth factors remains unclear. To correlate distributions of EGF-R with in vivo proliferative status, two benign diseases of unknown etiology, seborrheic keratoses and acrochordons (skin tags), were examined using EGF-R immunolocalization and 125I-EGF binding techniques. Lesions documented as growing by clinical criteria or 5-bromodeoxyuridine incorporation (a measure of cell proliferation) were compared to nongrowing lesions of the same type. To correlate distributions of EGF-R to specific dermatoses, skin diseases of viral etiology (verruca vulgaris and molluscum contagiosum) were also probed by EGF-R immunolocalization and 125I-EGF binding. Elevated immunostaining for EGF-R and 125I-EGF binding sites were associated with actively growing seborrheic keratoses and skin tags whereas normal patterns of immunostaining and 125I-EGF binding were seen in nongrowing seborrheic keratoses and skin tags. Viral diseases showed unique patterns. No EGF-R were detected in verruca vulgaris. Molluscum contagiosum lesions showed intense EGF-R in basal keratinocytes and no EGF-R in virally infected cells. Thus elevations in EGF-R show a positive in vivo correlation with proliferation in at least two differing benign diseases of the epidermis. The decreased levels of EGF-R in virally infected lesions suggests that EGF-R may show unique patterns for specific dermatoses and are not universally elevated in benign hyperproliferative skin disorders.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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