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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Useful markers of epithelial differentiation are
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The correct answer is  The protein making the bulk of keratohyalin granules is fillagrin. Also sulfur-rich protein loricin is present.  Fillagrin and loricin are useful markers of epithelial differentiation. Involucrin contributes to the 'Cornified cell envelope' in the cell membrane of keratohyalin cells.