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Lupus band test and disease activity in systemic lupus erythematosus: does it still matter?

R D Zecević1, M D Pavlović, D Stefanović

  • 1Department of Dermatology, Military Medical Academy, Belgrade, Serbia and Montenegro.

Clinical and Experimental Dermatology
|May 10, 2006
PubMed

Insights

The lupus band test (LBT) on sun-protected skin may indicate severe systemic lupus erythematosus (SLE) at diagnosis. A positive LBT, especially with multiple immunoglobulin deposits, correlates with higher disease activity.

Area of Science:

  • Immunodermatology
  • Rheumatology
  • Systemic Lupus Erythematosus Research

Background:

  • The diagnostic and disease activity assessment roles of the lupus band test (LBT) in systemic lupus erythematosus (SLE) remain undefined.
  • Current understanding lacks clarity on the clinical significance of LBT in SLE management.

Purpose of the Study:

  • To investigate the correlation between a positive lupus band test (LBT) and the global disease activity in patients with systemic lupus erythematosus (SLE).
  • To determine if LBT findings can serve as a marker for disease severity in SLE.

Main Methods:

  • Prospective study of 90 SLE patients undergoing biopsy of sun-protected, non-lesional (SPNL) skin.
  • Direct immunofluorescence analysis of skin specimens.
  • Classification of patients based on LBT results (negative/positive) and SLE Disease Activity Index (SLEDAI) scoring.

Main Results:

  • A positive LBT was significantly associated with higher SLE disease activity.
  • Increased numbers of deposited immunoreactants correlated with more active disease.
  • Nearly all patients with renal involvement exhibited a positive LBT.

Conclusions:

  • Lupus band test on SPNL skin may signify severe SLE at initial presentation.
  • The presence of three immunoglobulins at the dermoepidermal junction strengthens LBT's potential as a marker for severe SLE.
Abstract

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