Definition of "cytokeratin" []

• Either of several forms of keratin found in the intracytoplasmic cytoskeleton of epithelial tissue. (noun)

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• "Expression of Cre and hence targeting of the floxed gene can be restricted to e.g. T cells (lck promoter), cardiac muscle (cardiac myosin promoter), neurons (enolase promoter) or epithelia (cytokeratin promoter)."
• "Before any tissue dissociation procedure, the biopsies were characterised immunohistochemically with anti-CEA (carcinoembryonic antigen) and anti-cytokeratin antibodies as a positive control."
• "We also used immunohistochemistry to detect annexin IV and cleavage of cytokeratin 18 as markers of trophoblast apoptosis."