ArticleGlycoconjugate journal2019
In vitro activation and maturation of human mononuclear phagocytes by stimulation with liposomes coated with a neoglycolipid containing α1-3, α1-6-mannotriose.
Article in Glycoconjugate journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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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.
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Who cites it
2 citing papers in PubMed, 6 citations in OpenAlex.
- Wall teichoic acid-dependent phagocytosis of intact cell walls ofFrontiers in microbiology · 2022Article
- Various Tastes of Sugar: The Potential of Glycosylation in Targeting and Modulating Human Immunity via C-Type Lectin Receptors.Frontiers in immunology · 2020Review
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this study, we assessed the potential of liposomes coated with a neoglycolipid containing α1-3,α1-6-mannotriose residues (Man3-DPPE; Manα1-6(Manα1-3)Manitol-DPPE) for in vitro activation and maturation of human mononuclear phagocytes. In response to treatment with Man3-DPPE-coated liposomes (Man3-OMLs), PMA-stimulated human THP-1 cells showed enhanced expression of CD40, CD80 and HLA-DR and secreted significant levels of IL-12p40. Among various linkages of Man2-DPPE-coated liposomes, only liposomes coated with Manα1-6Manitol-DPPE (α1-6Man2-DPPE) induced these cellular responses similarly to Man3-OML treatment. Liposomes coated with Manα1-6(Manα1-3)Manα1-6(Manα1-3)Manitol-DPPE (Man5-DPPE) failed to activate the cells. These results suggest that an unsubstituted α1-6Man branch bound to a mannitol unit at the reducing end in Man3-DPPE is required for in vitro activation of human mononuclear phagocytes. Man3-OML-induced IL-12p40 production was not inhibited by BAY11-7082, an inhibitor of the MyD88-dependent signaling network, suggesting that TLRs are not involved in activation of human mononuclear phagocytes by Man3-OMLs. Stimulation of inflammatory monocytes or monocyte-derived dendritic cells (moDCs) with Man3-OMLs also induced enhanced expression of co-stimulatory molecules, HLA-DR, and CCR7, and IL-12p40 production from both types of cells. In response to Man3-OML treatment, moDCs but not inflammatory monocytes produced bioactive IL-12p70, which was enhanced by CD40 ligation. Thus, Man3-OMLs can activate naïve human mononuclear phagocytes and lead human moDCs to a fully matured status in vitro to elicit CTLs and a Th1 response without addition of inflammatory cytokines or TLR agonists.
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