Abstract:
:X-linked lymphoproliferative disease (XLP) is an inherited immunodeficiency characterized by an extreme susceptibility to Epstein-Barr virus (EBV) infection. Patients with XLP mainly present with the 3 clinical manifestations of fulminant infectious mononucleosis, lymphoproliferative disorder, and dysgammaglobulinemia and in rare cases have aplastic anemia and lymphocytic vasculitis. The causative gene for XLP was identified as SH2D1A/DSHP/SLAM-associated protein (SAP) in 1998, and genetic analysis has been used for the definite diagnosis of XLP. Diagnosis for most patients occurs at ages younger than 10 years, and there are few adult patients. Here we describe a 23-year-old man with hypogammaglobulinemia and EBV-associated hemophagocytic lymphohistiocytosis and a diagnosis of XLP. In addition, the patient showed type 1 helper T-cell (Th1) skewing, as has been described in Sap knock-out mice. Th1/Th2 imbalance in humans, as well as in mice, may play an important role in the pathogenesis of XLP.
journal_name
Int J Hematoljournal_title
International journal of hematologyauthors
Hoshino T,Kanegane H,Doki N,Irisawa H,Sakura T,Nojima Y,Miyawaki S,Miyawaki Tdoi
10.1532/IJH97.05020subject
Has Abstractpub_date
2005-07-01 00:00:00pages
55-8issue
1eissn
0925-5710issn
1865-3774pii
BY1BPJH0GBXE9HDXjournal_volume
82pub_type
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