Figure 2.

The PDGF-BB Aptamer Significantly Inhibits Caco-2 and SW480 but not CCD841 CoN Cell Proliferation. (A) The secondary structure of PDGF-BB aptamer. Caco-2 (B), SW480 (C) and CCD841 CoN (D) cells were treated with PDGF-BB aptamers (2.5, 12.5, and 25 nM) for 72 h, and cell viability was measured using MTS assay. The values are presented as mean ± SD compared with the control, n = 3, *P < 0.05 and **P < 0.01