C1q Knock-Out Mice for the Study of Complement Deficiency in Autoimmune Disease

Abstract excerpt

In humans, homozygous deficiency of the first component of the classical pathway of complement, C1q, is a powerful disease susceptibility factor for the development of systemic lupus erythematosus (SLE). This strong association indicates that a functional activity of C1q protects from the development of SLE. Studies in vitro have shown that C1q can bind apoptotic keratinocytes suggesting that it may have an...

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