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Cancer stem cells in most human tumors are commonly identified and enriched using similar strategies for identifying normal stem cells, including flow cytometry assays for side population, high aldehyde dehydrogenase activity, and CD133 positivity. Thus, development of a method for isolating a specific cancer using cancer-specific characteristic appears to be potentially important. Here scientists reported extremely high Lgr5 levels in the specimen from skin squamous cell carcinoma in patients. [Source: Tumor Biology]
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