An antibody profile of systemic lupus erythematosus detected by antigen microarray

Ittai Fattal, Noam Shental, Dror Mevorach, Juan Manuel Anaya, Avi Livneh, Pnina Langevitz, Gisele Zandman-Goddard, Rachel Pauzner, Miriam Lerner, Miri Blank, Maria Eugenia Hincapie, Uzi Gafter, Yaakov Naparstek, Yehuda Shoenfeld, Eytan Domany, Irun R. Cohen

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

Patients with systemic lupus erythematosus (SLE) produce antibodies to many different self-antigens. Here, we investigated antibodies in SLE sera using an antigen microarray containing many hundreds of antigens, mostly self-antigens. The aim was to detect sets of antibody reactivities characteristic of SLE patients in each of various clinical states - SLE patients with acute lupus nephritis, SLE patients in renal remission, and SLE patients who had never had renal involvement. The analysis produced two novel findings: (i) an SLE antibody profile persists independently of disease activity and despite long-term clinical remission, and (ii) this SLE antibody profile includes increases in four specific immunoglobulin G (IgG) reactivities to double-stranded DNA (dsDNA), single-stranded DNA (ssDNA), Epstein-Barr virus (EBV) and hyaluronic acid; the profile also includes decreases in specific IgM reactivities to myeloperoxidase (MPO), CD99, collagen III, insulin-like growth factor binding protein 1 (IGFBP1) and cardiolipin. The reactivities together showed high sensitivity (> 93%) and high specificity for SLE (> 88%). A healthy control subject who had the SLE antibody profile was later found to develop clinical SLE. The present study did not detect antibody reactivities that differentiated among the various subgroups of SLE subjects with statistical significance. Thus, SLE is characterized by an enduring antibody profile irrespective of clinical state. The association of SLE with decreased IgM natural autoantibodies suggests that these autoantibodies might enhance resistance to SLE.

Original languageEnglish (US)
Pages (from-to)337-343
Number of pages7
JournalImmunology
Volume130
Issue number3
DOIs
StatePublished - Jul 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Immunology and Allergy
  • Immunology

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