Evidence map›Paper›PMID 39062903›Full record

ArticleInternational journal of molecular sciences2024

Mannose-Binding Lectin Deposition in Membranous Nephropathy and Differentiation of Primary from Secondary Forms.

Irina Zdravkova, Eduard Tilkiyan, Desislava Bozhkova

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Article in International journal of molecular sciences, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

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4citing 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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Membranous Nephropathy: Antigenic Landscape and a Novel Pathogenetic Model.International journal of molecular sciences · 2026
    Review
  4. Review
4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Irina ZdravkovaDepartment of Propaedeutics of Internal Diseases, Medical Faculty, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria.ORCID 0000-0003-1362-0121
Eduard TilkiyanNephrology Clinic, University Hospital "Kaspela", 4000 Plovdiv, Bulgaria.ORCID 0000-0002-4091-4312
Desislava BozhkovaDepartment of General and Clinical Pathology, Faculty of Medicine, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria.ORCID 0000-0002-7802-0576

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The differentiation between primary and secondary forms of membranous nephropathy (MN) is a cornerstone that is necessary for adequate decision making regarding the treatment options and behavior of each specific case. Kidney biopsy and antibody results can be controversial, and a unique biomarker has still not been found. BACKGROUND AND

objectivesWe investigated the lack of mannose-binding lectin (MBL) deposition in patients with secondary MNs (sMNs) with the presence of IgG4 deposition in relation to the presence of MBL deposition in patients with primary MNs (pMNs). We also established a connection between the stage of MN and MBL deposition. MATERIALS AND

methodsMaterials from 72 renal biopsies with proven MN were used for immunohistochemistry staining (IHC) for the phospholipase A2 receptor (PLA2R), immunoglobulin subtype IgG4, and MBL. Patients were separated into one of the following three groups: primary MN (pMN), idiopathic MN (iMN), and secondary MN (sMN). Serum antibodies for PLA2R and thrombospondin type-I-domain-containing 7A (THSD7A) were also used for the precise evaluation of the type of MN, as well as for detecting positivity for PLA2R using IHC. Which stage of MN was present in relation to the deposition of MBL was evaluated.

resultsIn total, 50 patients were positive for IgG4, 34 with pMN, 12 with iMN, and 4 with sMN. A total of 20 patients were positive for MBL, 14 with pMN and 6 with iMN; no MBL deposits were found in patients with sMN. MBL positivity was predominantly present in the first two stages of MN, with a gradual reduction in the later stages.

conclusionsThe activation of the lectin-complement pathway occurs in the early stages of the disease and is associated with the deposition of IgG4; IgG4 deposition is present in sMN, but there is no MBL deposition. IgG4 cannot be used for the differentiation of primary from secondary MNs, but the lack of MBL can be used as a marker for sMN in the early stages of the disease.

Indexed as

Glomerulonephritis, MembranousImmunoglobulin GMannose-Binding LectinReceptors, Phospholipase A2AdultAgedBiomarkersBiopsyFemaleHumansKidneyMaleMiddle AgedThrombospondinsBiomarkersImmunoglobulin GMannose-Binding LectinPLA2R1 protein, humanReceptors, Phospholipase A2ThrombospondinsTHSD7A protein, humanAPLA2Rdepositiondifferential diagnosisIgG4lectin–complement pathway

Identifiers

PMID39062903
PMCPMC11277517

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