Role of anti-nucleosome antibodies in the diagnosis of systemic lupus erythematosus and as a marker for lupus nephropathy

SLE is a heterogeneous disease, characterized by variation in clinical and serological manifestations. This study intended to verify the role of anti-nucleosome (anti-NCS) antibodies in diagnosis of SLE and lupus nephritis and to establish the correlation between antibody reactivity and disease acti...

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Bibliographic Details
Published inThe Egyptian journal of immunology Vol. 21; no. 1; p. 57
Main Authors Abdel Gawad, Eman R, Mansour, Amira I, Abdel Aziz, Yasser A, Soliman, Aml F, Fawzy, Rasha M
Format Journal Article
LanguageEnglish
Published Egypt 2014
Subjects
Adult
Antibodies, Antinuclear - blood
Antibodies, Antinuclear - immunology
Biomarkers - blood
DNA - immunology
Enzyme-Linked Immunosorbent Assay
Female
Humans
Immunoglobulin G - blood
Immunoglobulin G - immunology
Lupus Erythematosus, Systemic - blood
Lupus Erythematosus, Systemic - diagnosis
Lupus Erythematosus, Systemic - immunology
Lupus Nephritis - blood
Lupus Nephritis - diagnosis
Lupus Nephritis - immunology
Male
Middle Aged
Nucleosomes - immunology
Sensitivity and Specificity
Young Adult
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Summary:SLE is a heterogeneous disease, characterized by variation in clinical and serological manifestations. This study intended to verify the role of anti-nucleosome (anti-NCS) antibodies in diagnosis of SLE and lupus nephritis and to establish the correlation between antibody reactivity and disease activity. Study subjects included 35 patients diagnosed as SLE and two control groups. While the first is a group with other collagen diseases (n = 80), the second included 50 matched apparently healthy subjects. Serum IgG anti-NCS antibodies in all subjects were detected by ELISA. Serum anti-NCS were higher in SLE than in the two control groups (P < 0.001). Serum anti-NCS antibody levels were higher in SLE patients with renal affection (P < 0.001), malar rash and with hematological disorders (P < 0.05). Anti-NCS antibodies showed a higher diagnostic sensitivity (74.7%) and specificity (96%) than anti-dsDNA. Combining data of anti-NCS and anti-dsDNA antibodies increased the diagnostic specificity to 97.3%. In conclusion, serum anti-NCS antibodies have diagnostic value and play role in the assessment of disease activity especially active renal disease and may predict disease outcome.
ISSN:1110-4902