A Novel X-Linked Inhibitor of Apoptosis Deficient Variant Showing Attenuated Epstein-Barr Virus Response

Abstract
We report on 2 Asian siblings with X-linked inhibitor of apoptosis deficiency that arose from a novel deletion that presented with Epstein-Barr virus disease and hemophagocytic lymphohistiocytosis. This disease is ascribed to dysfunction in the nucleotide binding and oligomerization domain receptor pathway, tested using a modified muramyl dipeptide–mediated assay.
Funding Information
  • National University Health System
  • National Medical Research Council
  • Hong Kong Society for Relief of Disabled Children