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http://purl.uniprot.org/citations/34815797http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/34815797http://www.w3.org/2000/01/rdf-schema#comment"Background: Serum-derived exosomes are correlated with disease severity of human systemic lupus erythematosus (SLE). The proteins in the T-cell-derived exosomes from SLE patients could contribute to inflammation. Methods: We characterized proteins of T cell-derived exosomes from SLE patients and healthy controls by proteomics. To study the potential pathogenic role of the identified exosomal protein, we generated and characterized T-cell-specific transgenic mice that overexpressed the identified protein in T cells using immunohistochemistry, immunoblotting, and single-cell RNA sequencing. Results: We identified an overexpressed protein, bactericidal/permeability-increasing protein (BPI), in SLE T cells and T-cell-derived exosomes. T-cell-specific BPI transgenic (Lck-BPI Tg) mice showed multi-tissue inflammation with early induction of serum IL-1β levels, as well as serum triglyceride and creatinine levels. Interestingly, exosomes of Lck-BPI Tg T cells stimulated IL-1β expression of wild-type recipient macrophages. Remarkably, adoptive transfer of BPI-containing exosomes increased serum IL-1β and autoantibody levels in recipient mice. The transferred exosomes infiltrated into multiple tissues of recipient mice, resulting in hepatitis, nephritis, and arthritis. ScRNA-seq showed that Lck-BPI Tg T cells displayed a decrease of Treg population, which was concomitant with ZFP36L2 upregulation and Helios downregulation. Furthermore, in vitro Treg differentiation was reduced by BPI transgene and enhanced by BPI knockout. Conclusions: BPI is a negative regulator of Treg differentiation. BPI overexpression in T-cell-derived exosomes or peripheral blood T cells may be a biomarker and pathogenic factor for human SLE nephritis, hepatitis, and arthritis."xsd:string
http://purl.uniprot.org/citations/34815797http://purl.org/dc/terms/identifier"doi:10.7150/thno.63743"xsd:string
http://purl.uniprot.org/citations/34815797http://purl.uniprot.org/core/author"Chen Y.M."xsd:string
http://purl.uniprot.org/citations/34815797http://purl.uniprot.org/core/author"Tan T.H."xsd:string
http://purl.uniprot.org/citations/34815797http://purl.uniprot.org/core/author"Yang H.Y."xsd:string
http://purl.uniprot.org/citations/34815797http://purl.uniprot.org/core/author"Chen M.H."xsd:string
http://purl.uniprot.org/citations/34815797http://purl.uniprot.org/core/author"Tsai C.Y."xsd:string
http://purl.uniprot.org/citations/34815797http://purl.uniprot.org/core/author"Chuang H.C."xsd:string
http://purl.uniprot.org/citations/34815797http://purl.uniprot.org/core/author"Hsueh C.H."xsd:string
http://purl.uniprot.org/citations/34815797http://purl.uniprot.org/core/author"Ciou Y.R."xsd:string
http://purl.uniprot.org/citations/34815797http://purl.uniprot.org/core/date"2021"xsd:gYear
http://purl.uniprot.org/citations/34815797http://purl.uniprot.org/core/name"Theranostics"xsd:string
http://purl.uniprot.org/citations/34815797http://purl.uniprot.org/core/pages"9953-9966"xsd:string
http://purl.uniprot.org/citations/34815797http://purl.uniprot.org/core/title"BPI overexpression suppresses Treg differentiation and induces exosome-mediated inflammation in systemic lupus erythematosus."xsd:string
http://purl.uniprot.org/citations/34815797http://purl.uniprot.org/core/volume"11"xsd:string
http://purl.uniprot.org/citations/34815797http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/34815797
http://purl.uniprot.org/citations/34815797http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/34815797
http://purl.uniprot.org/uniprot/#_B4DKH6-mappedCitation-34815797http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/34815797
http://purl.uniprot.org/uniprot/#_Q67E05-mappedCitation-34815797http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/34815797
http://purl.uniprot.org/uniprot/#_P17213-mappedCitation-34815797http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/34815797
http://purl.uniprot.org/uniprot/P17213http://purl.uniprot.org/core/mappedCitationhttp://purl.uniprot.org/citations/34815797
http://purl.uniprot.org/uniprot/Q67E05http://purl.uniprot.org/core/mappedCitationhttp://purl.uniprot.org/citations/34815797
http://purl.uniprot.org/uniprot/B4DKH6http://purl.uniprot.org/core/mappedCitationhttp://purl.uniprot.org/citations/34815797