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Expression of miR-34a. (A) Human cell lines, including human colon cancer (HCT116) cells by Northern blot (repeated three times with similar results). (B) Densitometric quantification of Northern analysis of miR-34a repeated three times. Both p53+/+ and p53−/− HCT116 cells have similar amounts of miR-34a, in the absence of genotoxic damage.
