Urinary CD163 is a Marker of Active Kidney Disease in Childhood-onset Lupus Nephritis
Overview
Authors
Affiliations
Objective: The objective of this study was to evaluate the utility of urine CD163 for detecting disease activity in childhood-onset SLE (cSLE) patients.
Methods: Sixty consecutive pediatric patients fulfilling four or more ACR criteria for SLE and 20 healthy controls were recruited for testing of urinary CD163 using ELISA. SLE disease activity was assessed using the SLEDAI-2K.
Results: Urine CD163 was significantly higher in patients with active LN than inactive SLE patients and healthy controls, with receiver operating characteristics area under the curve values ranging from 0.93 to 0.96. LN was ascertained by kidney biopsy. Levels of CD163 significantly correlated with the SLEDAI, renal SLEDAI, urinary protein excretion and C3 complement levels. Urine CD163 was also associated with high renal pathology activity index and chronicity index, correlating strongly with interstitial inflammation and interstitial fibrosis based on the examination of concurrent kidney biopsies.
Conclusion: Urine CD163 emerges as a promising marker for identifying cSLE patients with active kidney disease. Longitudinal studies are warranted to validate the clinical utility of urine CD163 in tracking kidney disease activity in children with lupus.
Biomarkers for systemic lupus erythematosus: A scoping review.
Zhang S, Xu R, Kang L Immun Inflamm Dis. 2024; 12(10):e70022.
PMID: 39364719 PMC: 11450456. DOI: 10.1002/iid3.70022.
Wang J, Lou W, Zhu M, Tu Y, Chen D, Qiu D Front Immunol. 2024; 15:1321507.
PMID: 38415246 PMC: 10896899. DOI: 10.3389/fimmu.2024.1321507.
Lupus Nephritis Biomarkers: A Critical Review.
Alduraibi F, Tsokos G Int J Mol Sci. 2024; 25(2).
PMID: 38255879 PMC: 10815779. DOI: 10.3390/ijms25020805.
Lupus Nephritis in Children: Novel Perspectives.
Pennesi M, Benvenuto S Medicina (Kaunas). 2023; 59(10).
PMID: 37893559 PMC: 10607957. DOI: 10.3390/medicina59101841.
Conticini E, Naveen R, Sen P, Singh M, Rathore U, Anuja A Front Med (Lausanne). 2023; 10:1127657.
PMID: 37425322 PMC: 10325640. DOI: 10.3389/fmed.2023.1127657.