Negative Regulation of PTEN by MicroRNA-221 and Its Association with Drug Resistance and Cellular Senescence in Lung Cancer Cells

Figure 1

The expression of miR-221 in A549/CDDP cells. (a) miR-221 expression in lung cancer cell lines A549, H1299, and H226 by real-time PCR, and U6 was used as an internal control. Results are displayed on fold difference. (b) miR-221 expression was analyzed by real-time PCR in A549 and A549/CDDP cells, and U6 was used as an internal control. Results are displayed on fold difference.

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(b)