Evidence map›Paper›PMID 40874685›Full record

ArticleACR open rheumatology2025

Data-Driven Cluster Analysis of Cerebrospinal Fluid Proteome and Associations with Clinical Phenotypes in Systemic Lupus Erythematosus.

Elsa Grenmyr, Kristoffer Zervides, Seyed Morteza Najibi, Birgitta Gullstrand, Charlotte Welinder, Jessika Nystedt, Petra C Nilsson, Pia C Sundgren, Robin Kahn, Andreas Jönsen and 1 more

Abstract read
In one paragraph

Article in ACR open rheumatology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Elsa GrenmyrRheumatology, Department of Clinical Sciences, Lund University and Skåne University Hospital, Lund, Sweden.ORCID https://orcid.org/0009-0001-2638-401X
Kristoffer ZervidesRheumatology and Neurology, Department of Clinical Sciences, Lund University and Skåne University Hospital, Lund, Sweden.ORCID https://orcid.org/0000-0003-4311-1635
Seyed Morteza NajibiRheumatology, Department of Clinical Sciences, Lund University and Skåne University Hospital, Lund, Sweden.ORCID https://orcid.org/0000-0001-6756-508X
Birgitta GullstrandRheumatology, Department of Clinical Sciences, Lund University and Skåne University Hospital, Lund, Sweden.ORCID https://orcid.org/0000-0002-9172-990X
Charlotte WelinderSwedish National Infrastructure for Biological Mass Spectrometry, Lund, Sweden.ORCID https://orcid.org/0000-0001-9626-0576
Jessika NystedtNeurology, Department of Clinical Sciences, Lund University and Skåne University Hospital, Lund, Sweden.ORCID https://orcid.org/0000-0002-7193-1828
Petra C NilssonNeurology, Department of Clinical Sciences, Lund University and Skåne University Hospital, Lund, Sweden.
Pia C SundgrenDiagnostic Radiology, Department of Clinical Sciences and Lund University BioImaging Center, Lund University and Skåne University Hospital, Lund, Sweden.ORCID https://orcid.org/0000-0001-9237-1236
Robin KahnPediatrics, Department of Clinical Sciences and Wallenberg Center for Molecular Medicine, Lund University and Skåne University Hospital, Lund, Sweden.ORCID https://orcid.org/0000-0002-3167-1179
Andreas JönsenRheumatology, Department of Clinical Sciences, Lund University and Skåne University Hospital, Lund, Sweden.ORCID https://orcid.org/0000-0002-4418-5786
Anders A BengtssonRheumatology, Department of Clinical Sciences, Lund University and Skåne University Hospital, Lund, Sweden.

Funding

Alfred Österlunds Stiftelse 846000-0311Anna-Greta Crafoord FoundationGreta och Johan Kocks FoundationKonung Gustav V:s 80-årsfond 802006-0235Magnus Bergvalls Stiftelse 802000-3151Medical Faculty of Lund UniversitySkane University Hospital Research FundingSwedish Rheumatism Association
6 · The paper itself

Abstract

objectiveTo explore the cerebrospinal fluid (CSF) proteome in systemic lupus erythematosus (SLE) and the associations between the CSF proteomic patterns and clinical manifestations.

methodsCSF samples from 29 female outpatients with SLE were analyzed with label-free liquid chromatography tandem mass spectrometry. Inclusion and CSF collection were conducted irrespective of clinical manifestations and disease duration. Proteomic data were used for sample clustering and analyzed for clinical variance. Proteins were clustered using Weighted Gene Co-expression Correlation Network Analysis. Modules were biologically characterized and analyzed for correlation to the clinical dataset.

resultsThree patient clusters were identified. Cluster 1 was characterized by the highest frequency of nephritis, depression, and cognitive dysfunction. Cluster 2 showed the highest frequency of alopecia and Sjogren disease antigen A-antibodies (anti-SSA) and a low frequency of cognitive impairment. Cluster 3 had a higher frequency of autonomic neuropathy and headache. Six protein modules were identified (module 1 [M1]-M6). Modules were characterized by nervous tissue proteins (M1), central nervous system (CNS) lipoproteins (M2), macrophage proteins (M3), plasma proteins (M4), Ig (M5), and intracellular metabolic proteins (M6). M1 and M2 proteins were most abundant in cluster 1 and correlated with nephritis, depression, and cognitive impairment. Increased abundance of M4 and M5 proteins were most distinct in cluster 2 and inversely correlated to cognitive impairment and brain atrophy.

conclusionPatients clustered by their CSF proteomic pattern had different disease phenotypes. Nephritis and neuronal damage defined the group with higher levels of neuronal proteins in CSF, which may suggest shared pathogenetic pathways in SLE affecting the kidney and CNS.

Identifiers

PMID40874685
PMCPMC12392285

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