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- Cheuk, S, et al.
(författare)
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The Skinny on Fat Trm Cells
- 2017
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Ingår i: Immunity. - : Elsevier BV. - 1097-4180 .- 1074-7613. ; 47:6, s. 1012-1014
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Tidskriftsartikel (refereegranskat)
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- Nasi, A, et al.
(författare)
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Immunogenicity is preferentially induced in sparse dendritic cell cultures
- 2017
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Ingår i: Scientific reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 7, s. 43989-
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Tidskriftsartikel (refereegranskat)abstract
- We have previously shown that human monocyte-derived dendritic cells (DCs) acquired different characteristics in dense or sparse cell cultures. Sparsity promoted the development of IL-12 producing migratory DCs, whereas dense cultures increased IL-10 production. Here we analysed whether the density-dependent endogenous breaks could modulate DC-based vaccines. Using murine bone marrow-derived DC models we show that sparse cultures were essential to achieve several key functions required for immunogenic DC vaccines, including mobility to draining lymph nodes, recruitment and massive proliferation of antigen-specific CD4+ T cells, in addition to their TH1 polarization. Transcription analyses confirmed higher commitment in sparse cultures towards T cell activation, whereas DCs obtained from dense cultures up-regulated immunosuppressive pathway components and genes suggesting higher differentiation plasticity towards osteoclasts. Interestingly, we detected a striking up-regulation of fatty acid and cholesterol biosynthesis pathways in sparse cultures, suggesting an important link between DC immunogenicity and lipid homeostasis regulation.
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