Expression of p63 and 14-3-3σ in normal and hyperdifferentiated mucosa of the upper aerodigestive tract

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Abstract

OBJECTIVE: Our goal was to analyze p63 and 14-3-3σ expression in normal and hyperdifferentiated head and neck mucosa. STUDY DESIGN: Compare the in vivo expression of p63 and 14-3-3σ by immunohistochemistry in normal mucosa and oral lichen planus, a benign mucosal lesion marked by hyperdifferentiation and apoptosis. RESULTS AND CONCLUSION: p63 is underexpressed and 14-3-3σ is overexpressed in lichen planus on immunohistochemical analysis. SIGNIFICANCE: The findings support the hypothesis that p63 plays an antidifferentiation role, whereas 14-3-3σ plays a prodifferentiation role in the upper aerodigestive tract epithelium. Lichen planus is a valuable model for the study of p63, 14-3-3σ, and mucosal differentiation. p63 and 14-3-3σ may be molecular markers for oral lichen planus. Copyright © 2002 by the American Academy of Otolaryngology-Head and Neck Surgery Foundation, Inc.

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Sniezek, J. C., Matheny, K. E., Burkey, B. B., Netterville, J. L., & Pietenpol, J. A. (2002). Expression of p63 and 14-3-3σ in normal and hyperdifferentiated mucosa of the upper aerodigestive tract. Otolaryngology - Head and Neck Surgery, 126(6), 598–601. https://doi.org/10.1067/mhn.2002.125302

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