Anti-miRNA-221 sensitizes human colorectal carcinoma cells to radiation by upregulating PTEN

Figure 1 Modulation of miR-221 expression and cell proliferation in Caco2 cells. A: Expression of miR-221 was detected by real-time RT-PCR. Expression of U6 snRNA was used as internal control; B: The status of cell proliferation was determined by MTT assay. CPIR in the presence of pre-miR-221 or anti-miR-221 was compared with those of controls. n = 6, mean ± SD; ^bP < 0.01 vs control group.