Binding of CD40L to Mac-1's I-Domain Involves the EQLKKSKTL Motif and Mediates Leukocyte Recruitment and Atherosclerosis—But Does Not Affect Immunity and Thrombosis in Mice

We present the novel finding that CD40L binds to the EQLKKSKTL motif on Mac-1 mediating leukocyte recruitment and atherogenesis. Specific inhibition of CD40L-Mac-1 binding may represent an attractive anti-inflammatory treatment strategy for atherosclerosis and other inflammatory conditions, potentially avoiding the unwanted immunologic and thrombotic effects of global inhibition of CD40L.