Qualitative analysis of atherosclerotic lesions from wild-type and NF-κB1^-/- transplanted LDLR^-/- mice. Atherosclerotic lesions from wild-type (A, C, E, G) and NF-κB1^-/- (B, D, F, H) transplanted mice were stained for macrophages (A-B), granulocytes (C-D), T cells (E-F), and B cells (G-H). Arrows indicate positive cells. Occasionally, a tertiary lymphoid organization was found in NF-κB1^-/- transplanted mice stained for T cells (I) and B cells (J). Hematoxylin counterstained; original magnification × 100.