Reduced anti-TNFα autoantibody levels coincide with flare in systemic lupus erythematosus

Sjöwall, ChristofferÖstergötlands Läns Landsting,Linköpings universitet,Reumatologi,Hälsouniversitetet,Länskliniken för Reumatologi i Östergötland (author)

Deviating cytokine patterns, as a consequence of aberrant immunoregulation, is implicated to be of aetiopathogenetic importance in systemic lupus erythematosus (SLE). To evaluate the possibility of anti-cytokine autoantibody-mediated cytokine regulation/dysregulation, IgG class autoantibodies against cytokines (IL-1β, IL-6, IL-10, TNFα and TGFβ1) were analysed by enzyme-linked immunosorbent assay (ELISA) in serial serum samples from clinically well-characterized SLE patients and in normal human sera (NHS). Anti-TNFα autoantibody levels were lower in patients with active disease compared to inactive disease (P<0.001) as well as to NHS (P<0.001). The anti-TNFα antibody levels correlated inversely to the SLE disease activity index (SLEDAI) (r2=0.07, P<0.01), whereas anti-TGFβ antibodies were raised in SLE and correlated positively to levels of complement factor C1q (r2=0.08, P<0.005). Generally raised anti-cytokine antibody levels and correlations to disease activity measures were found in one individual. Inverse correlations were found comparing SLEDAI scores and autoantibodies to TNFα (r2=0.92) and IL-6 (r2=0.86) and positive correlations were found between levels of anti-TNFα and C1q (r2=0.86) and C3 (r2=0.90). We show, for the first time, a coincidence between reduced anti-TNFα autoantibody levels and disease exacerbation in SLE, which is of interest regarding aetiopathogenesis and disease control.

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Reumatologi och inflammation hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Rheumatology and Autoimmunity hsv//eng
Anti-cytokine antibodies
Disease activity
Immunoregulation
Systemic lupus erythematosus
SLEDAI
Tumour necrosis factor α
MEDICINE
MEDICIN
Systemic lupus erythematosus
Immunoregulation
Disease activity
Anti-cytokine antibodies
SLEDAI
Tumour necrosis factor greek small letter alpha

Ernerudh, JanLinköpings universitet,Klinisk immunologi,Hälsouniversitetet(Swepub:liu)janer15 (author)
Bengtsson, AndersLund University,Lunds universitet,Reumatologi och molekylär skelettbiologi,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Rheumatology,Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Department of Rheumatology, Lund University Hospital, Lund, Sweden(Swepub:lu)reum-abe (author)
Sturfelt, GunnarLund University,Lunds universitet,Reumatologi och molekylär skelettbiologi,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Rheumatology,Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Department of Rheumatology, Lund University Hospital, Lund, Sweden(Swepub:lu)reum-gst (author)
Skogh, ThomasÖstergötlands Läns Landsting,Linköpings universitet,Reumatologi,Hälsouniversitetet,Länskliniken för Reumatologi i Östergötland(Swepub:liu)thosk00 (author)
Linköpings universitetReumatologi (creator_code:org_t)

By the author/editor: Sjöwall, Christo ...; Ernerudh, Jan; Bengtsson, Ander ...; Sturfelt, Gunnar; Skogh, Thomas

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Rheumatology and ...

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