Anti-ficolin-2 Autoantibodies in Lupus Nephritis

NCT03063281 | Completed

• 1 other identifier: 2030950v0
• Study Type: observational
• Target: 213
• Locations: 0 countries
• Sites: N/A

Brief Summary

Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by the production of multiple autoantibodies. The prevalence and significance of antibodies against Ficolin-2 have not been yet investigated. The aims of this study were to determine the prevalence of anti-ficolin-2 antibodies among SLE patients and to investigate their potential as diagnostic and/or prognostic biomarkers in SLE. This study is a secondary phase of a serum sample analysis done in early 2015 in order to determine the prevalence of anti-ficolin-2 antibodies among the same cohort as the previously declared study (ClinicalTrials.gov ID: NCT02625831; Unique Protocol ID: 1841851v0). In this retrospective study, clinical data were obtained from medical files and blood samples were selected from preexisting biological collection. SLE patients (n=165) were informed and did not objected, they were matched to healthy controls (n=48). Disease activity was determined according to the SLEDAI score. Anti-ficolin-2 antibodies levels were measured in sera by ELISA and correlated to previously obtained Anti-ficolin-3, Anti-ficolin-2, anti-dsDNA and anti-C1q antibodies levels. The titer of anti-ficolin-2 antibodies was correlated with the SLEDAI score (p\<0.0001). The presence of anti-ficolin-2 antibodies was associated with anti-ficolin-3 antibodies, anti-C1q and anti-dsDNA antibodies. Interestingly, the combination of anti-ficolin-3, anti-ficolin-2 and anti-C1q antibodies demonstrated higher specificity than any other traditional biomarker. These results suggest that anti-ficolin-3 and anti-ficolin-2 antibodies could be useful for the diagnosis of active nephritis in SLE patients.

Conditions

Lupus Erythematosus, Systemic

Keywords

ficolin-2; anti-ficolin-2 antibodies; lupus nephritis; Lupus Erythematosus, Systemic; biomarker; ficolin-3; anti-ficolin-3 antibodies

Outcome Measures

Primary Outcomes (1)

• Anti-ficolin-2 antibodies presence in SLE patients

  Anti-ficolin-2 antibodies in SLE patients, considered positive if superior than 95 arbitrary units. This study have a single visit approach with serum collection so every outcome is measured at T0, which is the only visit for the patient.

  measured at day of inclusion = T0

Secondary Outcomes (4)

• Correlation of anti-ficolin-2 antibodies with anti-DNA antibodies in SLE patients

  measured at day of inclusion = T0

• Correlation of anti-ficolin-2 antibodies with anti-C1q antibodies in SLE patients

  measured at day of inclusion = T0

• Correlation of anti-ficolin-2 antibodies with lupus activity (SLEDAI score) in SLE

  measured at day of inclusion = T0

• Correlation of anti-ficolin-2 antibodies presence with active nephritis in SLE patients

  measured at day of inclusion = T0

Study Arms (2)

SLE patient

165 SLE patients. Subgroup : 77 with active lupus and 88 in disease remission. in the active subgroup : 36 with lupus nephritis and 41 without. Biological analysis were performed.

Other: BIological analysis

healthy patients

48 healthy patients. Biological analysis were performed.

Other: BIological analysis

Interventions

BIological analysis OTHER

Biological analysis : ficolin-2 et anti-ficolin-2 antibodies

Also known as: Biological analysis on preexisting

SLE patient; healthy patients

Eligibility Criteria

• Age: 18 Years - 70 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

SLE patients were studied from medical data files of the Departments of Internal Medicine (Grenoble University Hospital, France) and Nephrology (Conception University Hospital, Marseille, France). For SLE patients, clinical and biological manifestations as well as treatments received and disease activity evaluated using the SLE Disease Activity Index (SLEDAI) at the time of sampling were recorded. SLE patients were divided into subgroups as described in group section.

You may qualify if:

• Age: ≥ 18 years old
• Patients with lupus diagnostic criteria (ACR1997)

You may not qualify if:

• Pregnant women
• Patient with known evolutive cancer
• healthy patients matched in age and sex with one or several SLE patients

Sponsors & Collaborators

• University Hospital, Grenoble: lead
• University Hospital, Marseille: collaborator

Related Publications (10)

• Kuraya M, Ming Z, Liu X, Matsushita M, Fujita T. Specific binding of L-ficolin and H-ficolin to apoptotic cells leads to complement activation. Immunobiology. 2005;209(9):689-97. doi: 10.1016/j.imbio.2004.11.001.

  PMID: 15804047 BACKGROUND

• Herrmann M, Voll RE, Zoller OM, Hagenhofer M, Ponner BB, Kalden JR. Impaired phagocytosis of apoptotic cell material by monocyte-derived macrophages from patients with systemic lupus erythematosus. Arthritis Rheum. 1998 Jul;41(7):1241-50. doi: 10.1002/1529-0131(199807)41:73.0.CO;2-H.

  PMID: 9663482 BACKGROUND

• Liphaus BL, Kiss MH. The role of apoptosis proteins and complement components in the etiopathogenesis of systemic lupus erythematosus. Clinics (Sao Paulo). 2010 Mar;65(3):327-33. doi: 10.1590/S1807-59322010000300014.

  PMID: 20360925 BACKGROUND

• Orbai AM, Truedsson L, Sturfelt G, Nived O, Fang H, Alarcon GS, Gordon C, Merrill J, Fortin PR, Bruce IN, Isenberg DA, Wallace DJ, Ramsey-Goldman R, Bae SC, Hanly JG, Sanchez-Guerrero J, Clarke AE, Aranow CB, Manzi S, Urowitz MB, Gladman DD, Kalunian KC, Costner MI, Werth VP, Zoma A, Bernatsky S, Ruiz-Irastorza G, Khamashta MA, Jacobsen S, Buyon JP, Maddison P, Dooley MA, Van Vollenhoven RF, Ginzler E, Stoll T, Peschken C, Jorizzo JL, Callen JP, Lim SS, Fessler BJ, Inanc M, Kamen DL, Rahman A, Steinsson K, Franks AG Jr, Sigler L, Hameed S, Pham N, Brey R, Weisman MH, McGwin G Jr, Magder LS, Petri M. Anti-C1q antibodies in systemic lupus erythematosus. Lupus. 2015 Jan;24(1):42-9. doi: 10.1177/0961203314547791. Epub 2014 Aug 14.

  PMID: 25124676 BACKGROUND

• Sato N, Ohsawa I, Nagamachi S, Ishii M, Kusaba G, Inoshita H, Toki A, Horikoshi S, Ohi H, Matsushita M, Tomino Y. Significance of glomerular activation of the alternative pathway and lectin pathway in lupus nephritis. Lupus. 2011 Nov;20(13):1378-86. doi: 10.1177/0961203311415561. Epub 2011 Sep 5.

  PMID: 21893562 BACKGROUND

• Lacroix M, Dumestre-Perard C, Schoehn G, Houen G, Cesbron JY, Arlaud GJ, Thielens NM. Residue Lys57 in the collagen-like region of human L-ficolin and its counterpart Lys47 in H-ficolin play a key role in the interaction with the mannan-binding lectin-associated serine proteases and the collectin receptor calreticulin. J Immunol. 2009 Jan 1;182(1):456-65. doi: 10.4049/jimmunol.182.1.456.

  PMID: 19109177 BACKGROUND

• Plawecki M, Lheritier E, Clavarino G, Jourde-Chiche N, Ouili S, Paul S, Gout E, Sarrot-Reynauld F, Bardin N, Boelle PY, Chiche L, Bouillet L, Thielens NM, Cesbron JY, Dumestre-Perard C. Association between the Presence of Autoantibodies Targeting Ficolin-3 and Active Nephritis in Patients with Systemic Lupus Erythematosus. PLoS One. 2016 Sep 15;11(9):e0160879. doi: 10.1371/journal.pone.0160879. eCollection 2016.

  PMID: 27631981 BACKGROUND

• Tanha N, Pilely K, Faurschou M, Garred P, Jacobsen S. Plasma ficolin levels and risk of nephritis in Danish patients with systemic lupus erythematosus. Clin Rheumatol. 2017 Feb;36(2):335-341. doi: 10.1007/s10067-016-3508-2. Epub 2016 Dec 15.

  PMID: 27981461 BACKGROUND

• Watanabe H, Saito R, Asano T, Sato S, Iwadate H, Kobayashi H, Ohira H. Serum L-ficolin levels in patients with systemic lupus erythematosus. Mod Rheumatol. 2012 Nov;22(6):899-902. doi: 10.1007/s10165-012-0616-y. Epub 2012 Feb 21.

  PMID: 22350641 BACKGROUND

• Colliard S, Jourde-Chiche N, Clavarino G, Sarrot-Reynauld F, Gout E, Deroux A, Fougere M, Bardin N, Bouillet L, Cesbron JY, Thielens NM, Dumestre-Perard C. Autoantibodies Targeting Ficolin-2 in Systemic Lupus Erythematosus Patients With Active Nephritis. Arthritis Care Res (Hoboken). 2018 Aug;70(8):1263-1268. doi: 10.1002/acr.23449. Epub 2018 Jun 21.

  PMID: 29045037 DERIVED

Biospecimen

Retention: SAMPLES WITHOUT DNA

one serum per patient

MeSH Terms

Conditions

Lupus Erythematosus, Systemic; Lupus Nephritis

Interventions

Biological Oxygen Demand Analysis

Condition Hierarchy (Ancestors)

Connective Tissue Diseases; Skin and Connective Tissue Diseases; Autoimmune Diseases; Immune System Diseases; Glomerulonephritis; Nephritis; Kidney Diseases; Urologic Diseases; Female Urogenital Diseases; Female Urogenital Diseases and Pregnancy Complications; Urogenital Diseases; Male Urogenital Diseases

Intervention Hierarchy (Ancestors)

Environmental Monitoring; Environmental Exposure; Environmental Pollution; Public Health; Environment and Public Health; Public Health Practice

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: February 21, 2017
• First Posted: February 24, 2017
• Study Start: November 1, 2012
• Primary Completion: May 1, 2013
• Study Completion: May 1, 2015
• Last Updated: February 24, 2017

Record last verified: 2017-02