ArticleFASEB journal : official publication of the Federation of American Societies for Experimental Biology2018
Epicutaneous administration of the pattern recognition receptor agonist polyinosinic-polycytidylic acid activates the MDA5/MAVS pathway in Langerhans cells.
Article in FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 17 citations in OpenAlex.
- Plakophilin 1 suppresses keratinocyte innate immune responses through DExD/H helicases.Cellular & molecular immunology · 2026Article
- B-type natriuretic peptide attenuates TLR-induced cytokine and chemokine secretion in monocyte-derived Langerhans cells.Frontiers in immunology · 2026Article
- Langerhans cells: Central players in the pathophysiology of atopic dermatitis.Journal of the European Academy of Dermatology and Venereology : JEADV · 2025Review
- Review
- Langerhans Cells-Revising Their Role in Skin Pathologies.Journal of personalized medicine · 2022Review
- Comparative assessment of commercially available wound gels in ex vivo human skin reveals major differences in immune response-modulatory effects.Scientific reports · 2022Article
- Interoperability of RTN1A in dendrite dynamics and immune functions in human Langerhans cells.eLife · 2022Article
- Octenidine-based hydrogel shows anti-inflammatory and protease-inhibitory capacities in wounded human skin.Scientific reports · 2021Article
- Langerhans Cells From Mice at Birth Express Endocytic- and Pattern Recognition-Receptors, Migrate to Draining Lymph Nodes Ferrying Antigen and Activate Neonatal T CellsFrontiers in immunology · 2020Article
- Significance and Role of Pattern Recognition Receptors in Malignancy.Archivum immunologiae et therapiae experimentalis · 2019Review
- A Preclinical Model for Studying Herpes Simplex Virus Infection.The Journal of investigative dermatology · 2019Article
- The Antiseptic Octenidine Inhibits Langerhans Cell Activation and Modulates Cytokine Expression upon Superficial Wounding with Tape Stripping.Journal of immunology research · 2019Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
Together with keratinocytes (KCs) and the dense network of Langerhans cells (LCs), the epidermis is an ideal portal for vaccine delivery. Pattern recognition receptor agonists, in particular polyinosinic-polycytidylic acid [p(I:C)], are promising adjuvant candidates for therapeutic vaccination to generate protective T-cell immunity. Here we established an ex vivo skin explant model to study the expression and activation of double-stranded RNA (dsRNA)-sensing pattern recognition receptors in LCs and KCs in human skin. Whereas KCs expressed all known dsRNA sensing receptors at a constitutive and inducible level, LCs exclusively expressed melanoma differentiation-associated protein 5 (MDA5) in untreated skin and freshly isolated cells. Comparative assessments of downstream signaling pathways induced by p(I:C) revealed distinct mitochondrial antiviral-signaling protein, IFN-regulatory factor 3, and NF-κB activation in LCs and KCs. Consequently, p(I:C) treatment of LCs significantly induced IFN-α and IFN-β mRNA expression, while in KCs an up-regulation of IFN-β and TNF-α mRNA was detectable. Stimulation of LCs with specific ligands revealed that not the TLR3- but only the MDA5-specific ligand induced IFN-α2, IFN-β, and TNF-α cytokines, but no IL-6 and -8. In KCs, both ligands induced production of high IL-6 and IL-8 levels, and low IFN-α2 and IFN-β levels, indicating that different dsRNA-sensing receptors and/or downstream signaling pathways are activated in both cell types. Our data suggest that MDA5 may be an attractive adjuvant target for epicutaneous delivery of therapeutic vaccines with the goal to target LCs.-Tajpara, P., Schuster, C., Schön, E., Kienzl, P., Vierhapper, M., Mildner, M., Elbe-Bürger, A. Epicutaneous administration of the pattern recognition receptor agonist polyinosinic-polycytidylic acid activates the MDA5/MAVS pathway in Langerhans cells.
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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.