ArticleThe Journal of experimental medicine2023
TLR7/8 stress response drives histiocytosis in SLC29A3 disorders.
Article in The Journal of experimental medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 22 citations in OpenAlex.
- Anti-human TLR7 antibody for therapeutic intervention in systemic lupus erythematosus.International immunology · 2026Article
- The lysosomal carrier SLC29A3 supports antibacterial signaling, and promotes autophagy by activating TRPML1 in murine dendritic cells.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- The lysosomal catabolism of nucleic acids-critical regulators of the innate immune system.Nucleic acids research · 2025Review
- Unraveling the molecular landscape of Erdheim-Chester disease: new insights from methylome and transcriptome integration.Leukemia · 2025Article
- The SLC-ome of membrane transport: From molecular discovery to physiology and clinical applications.Physiological reviews · 2025Review
- Innate immune responses to lysosomal nucleic acid stress.Journal of biochemistry · 2025Review
- Understanding Sex Differences in Autoimmune Diseases: Immunologic Mechanisms.International journal of molecular sciences · 2025Review
- RNase T2 deficiency promotes TLR13-dependent replenishment of tissue-protective Kupffer cells.The Journal of experimental medicine · 2025Article
- Landscape of targets within nucleoside metabolism for the modification of immune responses.Frontiers in oncology · 2025Review
- Targeting TLR Signaling Cascades in Systemic Lupus Erythematosus and Rheumatoid Arthritis: An Update.Biomedicines · 2024Article
- Endosomal Toll-Like Receptors as Therapeutic Targets for Autoimmune Diseases.Advances in experimental medicine and biology · 2024Article
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Authors and funding
32 authors at 11 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Loss-of-function mutations in the lysosomal nucleoside transporter SLC29A3 cause lysosomal nucleoside storage and histiocytosis: phagocyte accumulation in multiple organs. However, little is known about the mechanism by which lysosomal nucleoside storage drives histiocytosis. Herein, histiocytosis in Slc29a3-/- mice was shown to depend on Toll-like receptor 7 (TLR7), which senses a combination of nucleosides and oligoribonucleotides (ORNs). TLR7 increased phagocyte numbers by driving the proliferation of Ly6Chi immature monocytes and their maturation into Ly6Clow phagocytes in Slc29a3-/- mice. Downstream of TLR7, FcRγ and DAP10 were required for monocyte proliferation. Histiocytosis is accompanied by inflammation in SLC29A3 disorders. However, TLR7 in nucleoside-laden splenic monocytes failed to activate inflammatory responses. Enhanced production of proinflammatory cytokines was observed only after stimulation with ssRNAs, which would increase lysosomal ORNs. Patient-derived monocytes harboring the G208R SLC29A3 mutation showed enhanced survival and proliferation in a TLR8-antagonist-sensitive manner. These results demonstrated that TLR7/8 responses to lysosomal nucleoside stress drive SLC29A3 disorders.
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