Indirect immunofluorescence of Karpas 299 and KM-H2 cells against Bcl-3, p65, and p50.

Cytocentrifuged cells were incubated with anti–Bcl-3 (A), p65 (B), and p50 (C) antibodies and labeled with the Alexa 488–conjugated secondary antibody. The positions of nuclei, as revealed by DAPI staining in the lower panels. Original magnification × 1000.