PubMed · 553350
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K Ayed. [Complement and human pathology].. https://pubmed.ncbi.nlm.nih.gov/553350/
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In this review it is our intention to outline briefly the relevance of the complement system in systemic lupus erythematosus. Three main issues will be addressed: the role of complement in handling immune complexes (ICs), the association between complement deficiencies and IC diseases, and the value of measuring complement components and their conversion products in monitoring disease activity.
The yeast form of Paracoccidioides brasiliensis strain Pb18 was able to activate C3 of normal human serum diluted in phosphate-buffered saline or EGTA-MgCl2 in vitro. C3 convertase was also permissive when Pb18 cells were pre-treated with a pool of immune serum from patients with paracoccidioidomycosis and incubated in serum diluted in EDTA-CaCl2. The components C3, and fragments C3c, C3d, C3g, factor H, factor B, C4 and C5b-9 were demonstrated on the Pb18 cell surface by immunofluorescence although no effect was seen on fungal viability.