p50 subunit of nuclear factor-kappa B (NF-kB) in CD14 cells

Sublining tissue from a patient with rheumatoid arthritis studied by double immunohistochemistry. Brown-stained nuclei contain the p50 subunit of nuclear factor-kappa B (NF-kB); blue staining designates CD14-positive cells. Most CD14-positive cells contain the p50 subunit of NF-kB.