Osteopontin and disease activity in patients with recent-onset systemic Lupus Erythematosus: Results from the SLICC Inception Cohort

Research output: Contribution to journalArticle


Objective. In cross-sectional studies, elevated osteopontin (OPN) levels have been proposed to reflect, and/or precede, progressive organ damage and disease severity in systemic lupus erythematosus (SLE). We aimed, in a cohort of patients with recent-onset SLE, to determine whether raised serum OPN levels precede damage and/or are associated with disease activity or certain disease phenotypes. Methods. We included 344 patients from the Systemic Lupus International Collaborating Clinics (SLICC) Inception Cohort who had 5 years of followup data available. All patients fulfilled the 1997 American College of Rheumatology (ACR) criteria. Baseline sera from patients and from age- and sex-matched population-based controls were analyzed for OPN using ELISA. Disease activity and damage were assessed at each annual followup visit using the SLE Disease Activity Index 2000 (SLEDAI-2K) and the SLICC/ACR damage index (SDI), respectively. Results. Compared to controls, baseline OPN was raised 4-fold in SLE cases (p < 0.0001). After relevant adjustments in a binary logistic regression model, OPN levels failed to significantly predict global damage accrual defined as SDI ≥ 1 at 5 years. However, baseline OPN correlated with SLEDAI-2K at enrollment into the cohort (r = 0.27, p < 0.0001), and patients with high disease activity (SLEDAI-2K ≥ 5) had raised serum OPN (p < 0.0001). In addition, higher OPN levels were found in patients with persistent disease activity (p = 0.0006), in cases with renal involvement (p < 0.0001) and impaired estimated glomerular filtration rate (p = 0.01). Conclusion. The performance of OPN to predict development of organ damage was not impressive. However, OPN associated significantly with lupus nephritis and with raised disease activity at enrollment, as well as over time.


  • Lina Wirestam
  • Helena Enocsson
  • Thomas Skogh
  • Leonid Padyukov
  • Murray B. Urowitz
  • Dafna D. Gladman
  • Juanita Romero-DIaz
  • Sang Cheol Bae
  • Paul R. Fortin
  • Jorge Sanchez-Guerrero
  • Ann E. Clarke
  • Sasha Bernatsky
  • Caroline Gordon
  • John G. Hanly
  • Daniel Wallace
  • David A. Isenberg
  • Anisur Rahman
  • Joan Merrill
  • Ellen Ginzler
  • Graciela S. Alarcón
  • W. Winn Chatham
  • Michelle Petri
  • Munther Khamashta
  • Cynthia Aranow
  • Meggan MacKay
  • Mary Anne Dooley
  • Susan Manzi
  • Rosalind Ramsey-Goldman
  • Kristjan Steinsson
  • Asad Zoma
  • Guillermo Ruiz-Irastorza
  • Sam Lim
  • Ken Kalunian
  • Murat Inanc
  • Ronald Van Vollenhoven
  • Manuel Ramos-Casals
  • Diane L. Kamen
  • Søren Jacobsen
  • Christine Peschken
  • Anca Askanase
  • Thomas Stoll
  • Ian N. Bruce
  • Jonas Wetterö
  • Christopher Sjöwall
External organisations
  • Linköping University
  • Karolinska University Hospital
  • University of Toronto
  • University of Calgary
  • McGill University Health Center
  • University of Birmingham
  • University of California, Los Angeles
  • University College London
  • Oklahoma Medical Research Foundation
  • State University of New York Downstate Medical Center
  • University of Alabama
  • Johns Hopkins University School of Medicine
  • Feinstein Institute for Medical Research
  • University of North Carolina
  • Allegheny Health Network
  • Northwestern University
  • University of the Basque Country
  • Emory University
  • Institutd' Investigacions Biomèdiques August Pi iSunyer (IDIBAPS)
  • Medical University of South Carolina
  • Copenhagen University Hospital
  • University of Manitoba
  • Columbia University
  • University of Manchester
  • Instituto Nacional de Ciencias Médicas y Nutrición
  • Hanyang University Medical Center
  • Laval University
  • Dalhousie University
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Rheumatology and Autoimmunity


  • Biomarkers, Disease Activity, Organ Damage, Osteopontin, Prognosis, Systemic Lupus Erythematosus
Original languageEnglish
Pages (from-to)492-500
JournalJournal of Rheumatology
Issue number5
Publication statusPublished - 2019
Publication categoryResearch