Qualitative differences in T‐cell activation by dendritic cell‐derived extracellular vesicle subtypes
| العنوان: | Qualitative differences in T‐cell activation by dendritic cell‐derived extracellular vesicle subtypes |
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| المؤلفون: | Lotte Enserink, Clotilde Théry, Mercedes Tkach, Mabel Jouve, Danielle Lankar, Lorena Martin-Jaular, Joanna Kowal, Andrés Ernesto Zucchetti, Michael Saitakis |
| المساهمون: | thery, clotilde, Immunité et cancer (U932), Université Paris Descartes - Paris 5 (UPD5)-Institut Curie [Paris]-Institut National de la Santé et de la Recherche Médicale (INSERM) |
| المصدر: | EMBO Journal EMBO Journal, EMBO Press, 2017, 36 (20), pp.3012-3028. ⟨10.15252/embj.201696003⟩ |
| بيانات النشر: | HAL CCSD, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | CD4-Positive T-Lymphocytes, 0301 basic medicine, T cell, [SDV]Life Sciences [q-bio], Cell, Biology, Lymphocyte Activation, General Biochemistry, Genetics and Molecular Biology, Extracellular Vesicles, 03 medical and health sciences, Immune system, medicine, Humans, Secretion, Molecular Biology, General Immunology and Microbiology, General Neuroscience, Promoter, Articles, Dendritic Cells, Extracellular vesicle, Dendritic cell, Microvesicles, Cell biology, [SDV] Life Sciences [q-bio], 030104 developmental biology, medicine.anatomical_structure |
| الوصف: | International audience; Exosomes, nano-sized secreted extracellular vesicles (EVs), are actively studied for their diagnostic and therapeutic potential. In particular, exosomes secreted by dendritic cells (DCs) have been shown to carry MHC-peptide complexes allowing efficient activation of T lymphocytes, thus displaying potential as promoters of adaptive immune responses. DCs also secrete other types of EVs of different size, subcellular origin and protein composition, whose immune capacities have not been yet compared to those of exosomes. Here, we show that large EVs (lEVs) released by human DCs are as efficient as small EVs (sEVs), including exosomes, to induce CD4+ T-cell activation in vitro When released by immature DCs, however, lEVs and sEVs differ in their capacity to orient T helper (Th) cell responses, the former favouring secretion of Th2 cytokines, whereas the latter promote Th1 cytokine secretion (IFN-γ). Upon DC maturation, however, these functional differences are abolished, and all EVs become able to induce IFN-γ. Our results highlight the need to comprehensively compare the functionalities of EV subtypes in all patho/physiological systems where exosomes are claimed to perform critical roles. |
| اللغة: | English |
| تدمد: | 0261-4189 1460-2075 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79bbdde2de887a4fe1bc2485c9258810Test https://doi.org/10.15252/embj.201696003Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....79bbdde2de887a4fe1bc2485c9258810 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 02614189 14602075 |
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