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PDGF-BB Aptamer Effectively Abolished PDGF-BB-Induced Caco-2 and SW480 Cell Growth. Caco-2 (A) and SW480 (B) cells were treated with the PDGF-BB proteins previously incubated with the corresponding aptamers at the various molar ratios (PDGF-BB: Aptamer; 1:0, 1:1, 1:5 and 1:10) for 72 h. The cell viability was measured using MTS assay. The values are presented as mean ± SD, n = 3, **P < 0.01
