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Cell-Bound Complement Activation Products as a Source of Lupus Biomarkers

Ahearn, Joseph, MD

University of Pittsburgh

February 1, 2010

Measurement of serum C3 and C4 has been used for several decades to monitor disease activity in patients with SLE. Despite the limited utility and recognized weaknesses of these assays, they have remained the gold standard during an era of unprecedented discovery in the complement field. The current urgent need for lupus biomarkers warrants efforts to mine the complement system for assays superior to serum C3 and C4. Recent studies of soluble and cell-bound complement activation products hold promise for achieving this goal.

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