Confocal immunofluorescent analysis of HT-1080 cells, serum starved overnight (left) or treated with hTNF-α (20 ng/mL, 30 min; right), using NF-κB p65 (D14E12) XP<sup>®</sup> Rabbit mAb (Alexa Fluor<sup>®</sup> 488 Conjugate) (green). Actin filaments were labeled with DyLight™ 554 Phalloidin #13054 (red).