Evidence map›Paper›PMID 40165257›Full record

ArticleArthritis research & therapy2025

Clinical and immunological biomarkers can identify proliferative changes and predict renal flares in lupus nephritis.

Marta Calatroni, Emanuele Conte, Matteo Stella, Federica De Liso, Francesco Reggiani, Gabriella Moroni

Abstract read
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Article in Arthritis research & therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

Who cites it

10 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Not So Benign: Revisiting Pure Membranous Lupus Nephritis.Journal of personalized medicine · 2025
    Review
  7. Article
  8. Article
  9. Review
  10. Review
4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Marta CalatroniDepartment of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, Milan, 20072, Italy.
Emanuele ConteNephrological Unit, Nephrology and Dialysis Division, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, Milan, 20089, Italy.
Matteo StellaNephrological Unit, Nephrology and Dialysis Division, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, Milan, 20089, Italy.ORCID 0009-0006-2990-8620
Federica De LisoClinical Pathology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Francesco ReggianiDepartment of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, Milan, 20072, Italy.
Gabriella MoroniDepartment of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, Milan, 20072, Italy. gabriella.moroni@hunimed.eu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundKidney involvement is frequent in SLE, with proliferative lupus nephritis (LN) forms and nephritic flares being key predictors of poor outcomes. Conflicting results have been reported for anti-C1q antibodies among the serological markers. Our purpose was to assess the value of immunological tests (C3,C4 complement fractions, anti-DNA and antiC1q antibodies) in predicting histological classes and flares of lupus nephritis (LN).

methodsFor histological class prediction, we evaluated the immunological tests performed on the day of kidney biopsy by linear and multiple regression analyses. For flare prediction, univariable and multivariable Cox analyses were made at baseline, 6, and 12 months.

resultsOf 61 participants in the study, 47 had proliferative (III, IV) and 14 non-proliferative LN (II, V) at kidney biopsy. In proliferative LN, anti-DNA (p = 0.0186) and anti-C1q antibodies (Ab) (p = 0.0050) were significantly higher, and serum C3 and C4 lower (p = 0.0026; p = 0.0212) compared to non-proliferative LN. At multiple regression analysis, the best association to differentiate proliferative from non-proliferative LN was the number of urinary erythrocytes (OR 3.2292; CI 1.2585-8.2858; p = 0.0148) and anti-C1qAb (OR 1.0288; CI 1.0016-1.0568; p = 0.0380). Of 53 patients evaluated for flare predictions, followed for 60.69 (37.20-78.704) months, 10 (18.86%) had a renal flare at 28.19 months (24.84-39.38, range:16.3-55.8) from therapy initiation. At univariable analysis, anti-C1qAb (p = 0.0340, p = 0.0005) and no-use hydroxychloroquine (p = 0.0313, p = 0.0276) predicted flares at baseline and six months. Anti-C1qAb (p = 0.0047), non-use hydroxychloroquine (p = 0.0252), anti-C1qAb ≥ 40UA (p = 0.0047), 24/h proteinuria (p = 0.0185), and proteinuria ≥ 0.5 g/day (p = 0.0216) predicted flares at 12 months. At multivariable analysis, anti-C1q > 40UA (OR 9.0721; CI 0.9146-42.9882; p = 0.0057) and non-use of hydroxychloroquine (OR 0.1742 CI 0.0445-0.6823; p = 0.0126) were the independent predictors of renal flares.

conclusionImmunological tests can differentiate proliferative from non-proliferative LN, but anti-C1qAb and urinary erythrocytes had the best predictive power. Only persistent high anti-C1qAb at 1 year and non-use of hydroxychloroquine seem to predict renal flares.

Indexed as

KidneyLupus NephritisAdultAntibodies, AntinuclearBiomarkersBiopsyComplement C1qComplement C3Complement C4FemaleHumansMaleMiddle AgedYoung AdultAntibodies, AntinuclearBiomarkersComplement C1qComplement C3Complement C4anti-C1q antibodiesanti-DNA antibodiesComplement fractions, renal flaresLupus nephritisMembranous lupus nephritisProliferative lupus nephritis

Identifiers

PMID40165257
PMCPMC11956191

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