Autoinflammation and PLCG2-associated antibody deficiency and immune dysregulation (APLAID) is a rare autosomal dominant autoinflammatory disease characterized by early-onset recurrent erythematous plaques and vesiculopustular skin lesions associated with arthralgia, corneal erosions, and interstitial pneumonia. APLAID is an allelic disorder of PLCG2-associated antibody deficiency and immune dysregulation (PLAID) with some overlapping features. A recent study demonstrated that a family with an autoinflammatory disease was found to have point mutations in the same CSH2 domain of PLCG2. The patients identified with APLAID developed recurrent sinopulmonary infections presumably due to a lack of class-switched memory B cells on lymphocyte immunophenotyping. The patients were partially responsive to anakinra and to high-dose corticosteroids.
Zhou Q, Lee GS, Brady J, Datta S, Katan M, Sheikh A, Martins MS, Bunney TD, Santich BH, Moir S, Kuhns DB, Long Priel DA, Ombrello A, Stone D, Ombrello MJ, Khan J, Milner JD, Kastner DL, Aksentijevich I
タイトル
A hypermorphic missense mutation in PLCG2, encoding phospholipase Cgamma2, causes a dominantly inherited autoinflammatory disease with immunodeficiency.
