Neointimal lesion composition in CD40/CD40L deficiency or in mice with defective CD40-TRAF binding compared with controls. (A) Inflammatory cells stained with CD45-antibody, (B) CD3+ T-cell content of neointima, (C) amount of ASMA-positive SMCs, and (D) collagen content of neointimal lesions. *P < .05 compared with wild-type (for CD40^−/− and CD40L^−/− mice) or compared with CD40-Twt (for CD40-T2/3/5, CD40-T6, and CD40-T2/3/5&6 mice).