CLL mAb binding to oxLDL determined in chemiluminescent ELISA. The 2 most frequently used models of oxLDL—CuOxLDL and MDA-LDL—were used. Abs against phosphorylcholine-BSA (PC-BSA), cell wall pneumococcal polysaccharides (CPSs), native LDL (nLDL), and BSA were also tested. Competition ELISA was performed for the oxLDL-reactive CLL mAb clones. B/B₀ indicates the ratio between bound (cpm) and bound (cpm) without competitor.