Polarized Cytokine Secretion Figure 7. Quantification of poly-L-arginine-induced NF-kB translocation by immunofluorescence staining. 16HBE14o- cells were stimulated with vehicle control (A and B), 1 mM poly-L-arginine (C and D), or an inflammatory cocktail (TNFa, INF-c, and IL-1b, 10 ng/ml each; E and F) PLoS ONE | www.plosone.org 9 August 2010 | Volume 5 | Issue 8 | e12091