ArticleArthritis & rheumatology (Hoboken, N.J.)2025
Systemic Sclerosis Dermal Fibroblast Exosomes Trigger Type 1 Interferon Responses in Keratinocytes via a TBK/JAK/STAT Signaling Axis.
Article in Arthritis & rheumatology (Hoboken, N.J.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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.
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.
Who cites it
11 citing papers in PubMed.
- Long Noncoding RNA H19 Mediates STAT3-Dependent Activation of Keratinocytes and Fibroblasts in Systemic Sclerosis Skin.Arthritis & rheumatology (Hoboken, N.J.) · 2026Article
- Macrophage programming in systemic sclerosis: Niches, networks, and translational horizons.Seminars in immunopathology · 2026Review
- FUNDC1 Attenuates UVA-Induced Skin Photoaging by Regulating Mitophagy and P53 Stability.Antioxidants (Basel, Switzerland) · 2026Article
- Longitudinal clinical response to Janus kinase inhibitors in systemic sclerosis: a real-life multicentric study across multiple clinical domains.Clinical rheumatology · 2026Article
- Complement protein C1q induces endothelial apoptosis through C1qBP regulation of mitochondrial function in lung endothelial cells in systemic sclerosis.Molecular medicine (Cambridge, Mass.) · 2026Article
- Exosomes in inflammatory tissue injury: key pathogenic factors and promising therapeutic agents.Frontiers in immunology · 2026Review
- Baricitinib ameliorates skin fibrosis via direct fibroblast suppression and endothelial exosome-mediated paracrine signaling.Arthritis research & therapy · 2025Article
- Systemic sclerosis: bridging clinical and molecular insights: results from the PRECISESADS study.Journal of translational medicine · 2025Article
- Transforming growth factor beta (TGF-β) induces type 1 interferon signalling in systemic sclerosis keratinocytes through the chloride intracellular channel 4 (CLIC4).Arthritis research & therapy · 2025Article
- Targeting the cGAS-STING pathway: emerging strategies and challenges for the treatment of inflammatory skin diseases.Frontiers in pharmacology · 2025Review
- Oxidative stress and inflammation: roles in osteoporosis.Frontiers in immunology · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
Abstract
objectiveActivation of type I interferon (IFN) response has been shown to correlate with disease activity in systemic sclerosis (SSc). It is currently unknown whether the tissue-specific type I IFN activation is a consequence of the response observed in blood or rather its source. Exosomes from SSc fibroblasts were recently shown to activate macrophages in vitro. Here, we aimed to determine the source of type I IFN signature in SSc skin biopsies and the potential role of exosomes from SSc dermal fibroblasts in the process.
methodsSkin biopsies were obtained from the forearms of healthy patients and of those with SSc and processed for dermal fibroblasts and keratinocytes. Exosomes were isolated from healthy and SSc dermal fibroblast supernatants by ultracentrifugation and added to human skin keratinocytes. Keratinocyte transcriptome was analyzed by RNA sequencing (RNA-seq) analysis. TANK-binding kinase (TBK) and JAK were inhibited using a small molecule inhibitor (GSK8612) and tofacitinib, respectively.
resultsSSc skin biopsies showed the highest levels of type I IFN response in the epidermal layer. RNA-seq analysis of keratinocytes transcriptome following exposure to dermal fibroblast exosomes showed strong up-regulation of IFN signature genes induced by SSc exosomes compared to healthy control. Inhibition of TBK or JAK activity suppressed the up-regulation of the IFN signature induced by SSc exosomes.
conclusionIFN activation of SSc keratinocytes is dependent on their crosstalk with dermal fibroblasts and inducible by extracellular exosomes. Our data indicate that SSc fibroblast exosomes contribute to the type I IFN activation in SSc skin through activation of pattern recognition receptors upstream of TBK.
Indexed as
Identifiers
What OpenQuestion holds
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 OpenQuestion graph.