ArticleClinical and experimental immunology2018
Activation of plasmacytoid dendritic cells by apoptotic particles - mechanism for the loss of immunological tolerance in Sjögren's syndrome.
Article in Clinical and experimental immunology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.
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Who cites it
48 citing papers in PubMed, 68 citations in OpenAlex.
- Adipose Stem Cell-Derived Apoptotic Vesicles Attenuate Hypertrophic Scarring by Targeting the CDC20/WNT Signaling Pathway.Biomedicines · 2026Article
- Pathogenesis of renal involvement in primary Sjögren's disease: convergence of multifactorial mechanisms on immune dysregulation.Frontiers in immunology · 2026Review
- Mesenchymal stem cell-derived apoptotic vesicles: emerging cell-free strategy for periodontitis treatment.Journal of nanobiotechnology · 2025Review
- Tlr9 expression protects against Tlr7-dependent exocrine gland and systemic disease manifestations in primary Sjögren's disease in a sex-biased manner.Journal of autoimmunity · 2025Article
- Hypoxic stimulation of DCLK1 transcription and alternative-promoter switching fuels tumor malignancy in clear cell renal cell carcinoma.Cell death & disease · 2025Article
- Machine learning approach to single cell transcriptomic analysis of Sjogren's disease reveals altered activation states of B and T lymphocytes.Journal of autoimmunity · 2025Article
- Extracellular Vesicles in the Crosstalk of Autophagy and Apoptosis: A Role for Lipid Rafts.Cells · 2025Review
- Apoptotic mesenchymal stem cells and their secreted apoptotic extracellular vesicles: therapeutic applications and mechanisms.Stem cell research & therapy · 2025Review
- The role of microRNAs in primary Sjögren's disease: deciphering regulatory networks and assessing current therapeutic perspectives.Frontiers in immunology · 2025Review
- Diagnostic and therapeutic potentials of extracellular vesicles for primary Sjögren's Syndrome: A review.Dentistry review (New York, N.Y.) · 2024Article
- Integrin αvβ3 Limits Cytokine Production by Plasmacytoid Dendritic Cells and Restricts TLR-Driven Autoimmunity.Journal of immunology (Baltimore, Md. : 1950) · 2024Article
- A new insight on evaluation of the fertility and pregnancy outcome in patients with primary Sjögren syndrome: a propensity score matched study in multi-IVF centers.Reproductive biology and endocrinology : RB&E · 2024Article
- Neuroactive Steroids, Toll-like Receptors, and Neuroimmune Regulation: Insights into Their Impact on Neuropsychiatric Disorders.Life (Basel, Switzerland) · 2024Review
- The role of cytokines from salivary gland epithelial cells in the immunopathology of Sjögren's syndrome.Frontiers in immunology · 2024Review
- Decoding the secret of extracellular vesicles in the immune tumor microenvironment of the glioblastoma: on the border of kingdoms.Frontiers in immunology · 2024Review
- Immune and non-immune mediators in the fibrosis pathogenesis of salivary gland in Sjögren's syndrome.Frontiers in immunology · 2024Review
- Advances in cellular and molecular pathways of salivary gland damage in Sjögren's syndrome.Frontiers in immunology · 2024Review
- The Spectrum of Extraglandular Manifestations in Primary Sjögren's Syndrome.Journal of personalized medicine · 2023Review
- The Role of Regulatory T Cells in the Onset and Progression of Primary Sjögren's Syndrome.Cells · 2023Review
- Deciphering the role of cDC2s in Sjögren's syndrome: transcriptomic profile links altered antigen processes with IFN signature and autoimmunity.Annals of the rheumatic diseases · 2023Article
Corrections and comments
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Authors and funding
8 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sjögren's syndrome (SS) is a common autoimmune disease targeting salivary and lacrimal glands. It is strongly female-dominant, characterized by low oestrogen levels combined with a local intracrine dihydrotestosterone defect. We hypothesized that these hormonal deficits lead to increased apoptosis of the epithelial cells and plasmacytoid dendritic cell (pDC)-mediated proinflammatory host responses. Expression of Toll-like receptors (TLRs)-7 and -9 and cytokine profiles was studied in pDCs treated with apoptotic particles collected in consecutive centrifugation steps of media from apoptotic cells. Expression and localization of SS autoantigens in these particles was also analysed. Furthermore, the effects of sex steroids were studied in pDCs cultured with several concentrations of dihydrotestosterone and 17-β-oestradiol, and in saliva of patient treated with dehydroepiandrosterone. Apoptosis of the epithelial cells led to cleavage and translocation of SS-autoantigens, α-fodrin and SS-A, into apoptotic particles. The apoptosis-induced apoptotic particles also contained another SS-autoantigen, hy1-RNA. These particles were internalized by pDCs in a size-dependent manner and affected TLR-7 and -9 expression and the production of proinflammatory cytokines. The analysed androgens protected cells from apoptosis, influenced redistribution of autoantigens and diminished the apoptotic particle-stimulated increase of the TLRs in pDCs. Our findings suggest that the formation of apoptotic particles may play a role in loss of immune tolerance, manifested by production of autoantibodies and the onset of autoinflammation in SS.
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