Urinary TWEAK and the activity of lupus nephritis

Noa Schwartz, Lihe Su, Linda C. Burkly, Meggan Mackay, Cynthia Aranow, Maria Kollaros, Jennifer S. Michaelson, Brad Rovin, Chaim Putterman

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Abstract

The TNF superfamily cytokine TWEAK induces mesangial cells, podocytes, and endothelial cells to secrete pro-inflammatory chemokines including MCP-1, IP-10 and RANTES, which are crucial in the pathogenesis of lupus nephritis (LN). As TWEAK regulates the secretion of these inflammatory mediators, we studied whether urinary TWEAK (uTWEAK) levels might be predictive and/or diagnostic in LN. In a cross-sectional study of a large, multi-center cohort of systemic lupus erythematosus (SLE) patients, uTWEAK levels were higher in patients with active as compared to never or non-active nephritis (median (IQR): 16.3 (9.9-23.0) versus 5.5 (2.3-16.8) pg/mg creatinine, p = 0.001), and levels of uTWEAK correlated with the renal SLE disease activity index (rSLEDAI) score (r = 0.405, p < 0.001). uTWEAK levels were higher in patients undergoing a flare as compared to patients with chronic stable disease (11.1 (8.1-18.2) and 5.2 (2.3-15.3) pg/mg creatinine, respectively; p = 0.036). Moreover, uTWEAK levels were significantly higher in patients undergoing a renal flare, as opposed to a non-renal flare (12.4 (9.1-18.2) and 5.2 (3.0-11.9) pg/mg creatinine, respectively; p = 0.029). An accurate, non-invasive method to repeatedly assess kidney disease in lupus would be very helpful in managing these often challenging patients. Our study indicates that urinary TWEAK levels may be useful as a novel biomarker in LN.

Original languageEnglish (US)
Pages (from-to)242-250
Number of pages9
JournalJournal of Autoimmunity
Volume27
Issue number4
DOIs
StatePublished - Dec 2006

Fingerprint

Lupus Nephritis
Creatinine
Systemic Lupus Erythematosus
Kidney
Chemokine CCL5
Podocytes
Mesangial Cells
Nephritis
Kidney Diseases
Chemokines
Chronic Disease
Endothelial Cells
Cross-Sectional Studies
Biomarkers
Cytokines

Keywords

  • Lupus nephritis
  • Systemic lupus erythematosus
  • TWEAK

ASJC Scopus subject areas

  • Immunology
  • Immunology and Allergy

Cite this

Schwartz, N., Su, L., Burkly, L. C., Mackay, M., Aranow, C., Kollaros, M., ... Putterman, C. (2006). Urinary TWEAK and the activity of lupus nephritis. Journal of Autoimmunity, 27(4), 242-250. https://doi.org/10.1016/j.jaut.2006.12.003

Urinary TWEAK and the activity of lupus nephritis. / Schwartz, Noa; Su, Lihe; Burkly, Linda C.; Mackay, Meggan; Aranow, Cynthia; Kollaros, Maria; Michaelson, Jennifer S.; Rovin, Brad; Putterman, Chaim.

In: Journal of Autoimmunity, Vol. 27, No. 4, 12.2006, p. 242-250.

Research output: Contribution to journalArticle

Schwartz, N, Su, L, Burkly, LC, Mackay, M, Aranow, C, Kollaros, M, Michaelson, JS, Rovin, B & Putterman, C 2006, 'Urinary TWEAK and the activity of lupus nephritis', Journal of Autoimmunity, vol. 27, no. 4, pp. 242-250. https://doi.org/10.1016/j.jaut.2006.12.003
Schwartz N, Su L, Burkly LC, Mackay M, Aranow C, Kollaros M et al. Urinary TWEAK and the activity of lupus nephritis. Journal of Autoimmunity. 2006 Dec;27(4):242-250. https://doi.org/10.1016/j.jaut.2006.12.003
Schwartz, Noa ; Su, Lihe ; Burkly, Linda C. ; Mackay, Meggan ; Aranow, Cynthia ; Kollaros, Maria ; Michaelson, Jennifer S. ; Rovin, Brad ; Putterman, Chaim. / Urinary TWEAK and the activity of lupus nephritis. In: Journal of Autoimmunity. 2006 ; Vol. 27, No. 4. pp. 242-250.
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