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Serum MPO-DNA Complexes as a Biomarker of Disease Activity in Systemic Lupus Erythematosus
Serum Myeloperoxidase-DNA Complexes as a Novel Biomarker of Neutrophil Extracellular Trap and Disease Activity in Systemic Lupus Erythematosus
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by immune system dysregulation and inflammation affecting multiple organs. A key mechanism in its development involves the excessive formation and impaired clearance of neutrophil extracellular traps (NETs), which release myeloperoxidase-DNA (MPO-DNA) complexes into the circulation. Although standard laboratory markers like complement proteins (C3, C4) and anti-dsDNA antibodies are routinely used, they often show inconsistent sensitivity in monitoring disease activity and flare-ups.
The primary purpose of this observational study is to evaluate serum MPO-DNA complexes as a circulating biomarker of NET formation in patients with systemic lupus erythematosus.
The study aims to:
- Measure serum MPO-DNA complex levels in active SLE patients compared to age- and sex-matched inactive SLE controls.
- Assess the correlation between MPO-DNA complex levels and clinical disease activity measured by the SLE Disease Activity Index 2000 (SLEDAI-2K) score.
- Evaluate the diagnostic accuracy of MPO-DNA complexes compared to conventional inflammatory and immunological markers (ESR, CRP, C3, C4, and anti-dsDNA).
Participants will undergo routine clinical assessments and standard blood sampling to measure routine laboratory parameters and circulating MPO-DNA complex levels via enzyme-linked immunosorbent assay (ELISA).
Studie Overzicht
Toestand
Studietype
Inschrijving (Geschat)
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Kind
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- Diagnosis of systemic lupus erythematosus (SLE) according to the 2019 European Alliance of Associations for Rheumatology/American College of Rheumatology (EULAR/ACR) classification criteria.
- Age older than 16 years.
- Provision of written informed consent prior to study enrollment.
Exclusion Criteria:
- Age 16 years or younger.
- Overlapping autoimmune diseases (e.g., rheumatoid arthritis, systemic sclerosis, mixed connective tissue disease).
- Concurrent active severe infections.
- Malignancy.
- Pregnancy.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
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Active SLE Patients
Consists of 45 patients clinically diagnosed with systemic lupus erythematosus according to the 2019 EULAR/ACR classification criteria, presenting with active disease as determined by the Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K).
Serum samples are collected to measure circulating myeloperoxidase-DNA (MPO-DNA) complexes via ELISA alongside routine inflammatory and immunological markers.
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Inactive SLE Controls
Consists of 45 age- and sex-matched patients clinically diagnosed with systemic lupus erythematosus according to the 2019 EULAR/ACR classification criteria, presenting with inactive disease (clinical remission) based on SLEDAI-2K scoring.
Serum samples are collected to evaluate baseline circulating MPO-DNA complex levels and routine laboratory parameters for comparative analysis.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Serum Myeloperoxidase-DNA (MPO-DNA) Complex Concentration
Tijdsspanne: Baseline
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Circulating levels of myeloperoxidase-DNA (MPO-DNA) complexes, measured in optical density (OD) units or ng/mL using an enzyme-linked immunosorbent assay (ELISA), to evaluate neutrophil extracellular trap (NET) formation and compare active versus inactive SLE patients.
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Baseline
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Medewerkers en onderzoekers
Sponsor
Studie record data
Bestudeer belangrijke data
Studie start (Geschat)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
- Urogenitale ziekten
- Mannelijke urogenitale ziekten
- Nier Ziekten
- Urologische ziekten
- Vrouwelijke urogenitale ziekten
- Vrouwelijke urogenitale ziekten en zwangerschapscomplicaties
- Bindweefselziekten
- Auto-immuunziekten
- Ziekten van het immuunsysteem
- Glomerulonefritis
- Nefritis
- Huid- en bindweefselaandoeningen
- Lupus erythematosus, systemisch
- Lupus-nefritis
Andere studie-ID-nummers
- MPO-DNA in Lupus Activity
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