Autosomal Recessive CD55 Deficiency is Associated with Protein Losing Enteropathy, Thrombosis, and Complement Dysregulation
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We describe 11 patients from 8 families with homozygous LOF mutations in the complement regulatory protein CD55. Loss of CD55 is associated with increased complement activation, severe protein losing enteropathy accompanying a primary intestinal lymphangiectasia, and deep vein thrombotic events. We have named this disease CHAPLE after the principle components of the disease.