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Expression of CD44 receptor in the mucosa of adenomatous polyp. Biopsy specimens of colon polyp were frozen sectioned and immunolabeled using pan specific anti-CD44 and anti-CD44v10 IgG. Nuclei were stained with DAPI (Blue). Nonspecific binding of secondary FITC IgG was checked (upper right panel). The data indicate that the most of CD44 protein is expressed in the epithelial cells of the colon crypt base.
