Journal
TRANSFUSION MEDICINE AND HEMOTHERAPY
Volume 42, Issue 5, Pages 303-310Publisher
KARGER
DOI: 10.1159/000438964
Keywords
Complement; Autoinnmune hemolytic anemia; Cold agglutinin disease; Therapy; Complement inhibitors
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Funding
- Mundipharma
- Alexion
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The classification of autoimnnune hemolytic anemias and the complement system are reviewed. In autoimmune hemolytic anemia of the warm antibody type, complement-mediated cell lysis is clinically relevant in a proportion of the patients but is hardly essential for hemolysis in most patients. Cold antibody-mediated autoimmune hemolytic anemias (primary cold agglutinin disease, secondary cold agglutinin syndrome and paroxysmal cold hemoglobinuria) are entirely complement-mediated disorders. In cold agglutinin disease, efficient therapies have been developed in order to target the pathogenic B-cell clone, but complement modulation remains promising in some clinical situations. No established therapy exists for secondary cold agglutinin syndrome and paroxysmal cold hemoglobinuria, and the possibility of therapeutic complement inhibition is interesting. Currently, complement modulation is not clinically documented in any autoimmune hemolytic anemia. The most relevant candidate drugs and possible target levels of action are discussed. (C) 2015 S. Karger GmbH, Freiburg
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