Binding of immune complexes to erythrocyte CR1 (CD35): difference in requirement of classical pathway components and indication of alternative pathway-mediated binding in C2-deficiency
Deficiency of complement components within the classical pathway is associated with increased risk for immune complex disease. However, C2-deficient individuals often have a mild disease and about 50% are healthy. To study the importance of the different components for immune complex clearance, bovine serum albumin (BSA)/anti-BSA complexes were opsonized in human serum and the binding to erythrocy