ArticleNature communications2024
Defective germinal center selection results in persistence of self-reactive B cells from the primary to the secondary repertoire in Primary Antiphospholipid Syndrome.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- The why, what, who and when of B cell depletion in systemic lupus erythematosus: biological rationale, patient stratification and evolving therapeutic modalities.Rheumatology (Oxford, England) · 2026Review
- Altered B cell activation contributes to the immunopathogenesis of childhood arthritis-associated uveitis.Nature communications · 2026Article
- Antiphospholipid Syndrome Coexisting With Evans Syndrome and SCL-70 Antibody Positivity: A Case Report.Clinical case reports · 2026Article
- Article
- B Cell Tolerance and Obstetric Antiphospholipid Syndrome.Clinical reviews in allergy & immunology · 2025Review
- Review
Corrections and comments
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Authors and funding
24 authors.
Funding
Abstract
Primary antiphospholipid syndrome (PAPS) is a life-threatening clotting disorder mediated by pathogenic autoantibodies. Here we dissect the origin of self-reactive B cells in human PAPS using peripheral blood and bone marrow of patients with triple-positive PAPS via combined single-cell RNA sequencing, B cell receptors (BCR) repertoire profiling, CITEseq analysis and single cell immortalization. We find that antiphospholipid (aPL)-specific B cells are present in the naive compartment, polyreactive, and derived from the natural repertoire. Furthermore, B cells with aPL specificities are not eliminated in patients with PAPS, persist until the memory and long-lived plasma cell stages, likely after defective germinal center selection, while becoming less polyreactive. Lastly, compared with the non-PAPS cells, PAPS B cells exhibit distinct IFN and APRIL signature as well as dysregulated mTORC1 and MYC pathways. Our findings may thus elucidate the survival mechanisms of these autoreactive B cells and suggest potential therapeutic targets for the treatment of PAPS.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.