FAS-L, IL-10, and double-negative CD4- CD8- TCR alpha/beta+ T cells are reliable markers of autoimmune lymphoproliferative syndrome (ALPS) associated with FAS loss of function

Blood. 2009 Mar 26;113(13):3027-30. doi: 10.1182/blood-2008-09-179630. Epub 2009 Jan 27.

Abstract

Autoimmune lymphoproliferative syndrome (ALPS) is characterized by splenomegaly, lymphadenopathy, hypergammaglobulinemia, accumulation of double-negative TCRalphabeta(+) CD4(-)CD8(-) T cells (DNT cells), and autoimmunity. Previously, DNT cell detection and a functional defect of T cells in a FAS-induced apoptosis test in vitro had been used for ALPS diagnosis. However, a functional defect can also be detected in mutation-positive relatives (MPRs) who remain free of any ALPS-related disease. In contrast, lymphocytes from patients carrying a somatic mutation of FAS exhibit normal sensitivity to FAS-induced apoptosis in vitro. We assessed the soluble FAS-L concentration in the plasma of ALPS patients carrying FAS mutations. Overall, we showed that determination of the FAS-L represents, together with the IL-10 concentration and the DNT cell percentage, a reliable tool for the diagnosis of ALPS.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Autoimmune Diseases / blood
  • Autoimmune Diseases / diagnosis*
  • Autoimmune Diseases / genetics
  • Autoimmune Diseases / metabolism
  • Biomarkers / blood
  • Biomarkers / metabolism
  • CD4 Antigens / blood
  • CD4 Antigens / metabolism
  • CD8 Antigens / blood
  • CD8 Antigens / metabolism
  • Case-Control Studies
  • Child
  • Child, Preschool
  • Fas Ligand Protein / blood
  • Fas Ligand Protein / metabolism*
  • Humans
  • Infant
  • Infant, Newborn
  • Interleukin-10 / blood
  • Interleukin-10 / metabolism*
  • Lymphoproliferative Disorders / blood
  • Lymphoproliferative Disorders / diagnosis*
  • Lymphoproliferative Disorders / genetics
  • Lymphoproliferative Disorders / metabolism
  • Middle Aged
  • Mutation / physiology
  • Receptors, Antigen, T-Cell, alpha-beta / metabolism*
  • Syndrome
  • T-Lymphocytes / metabolism*
  • T-Lymphocytes / pathology
  • Young Adult
  • fas Receptor / genetics*
  • fas Receptor / physiology

Substances

  • Biomarkers
  • CD4 Antigens
  • CD8 Antigens
  • Fas Ligand Protein
  • Receptors, Antigen, T-Cell, alpha-beta
  • fas Receptor
  • Interleukin-10