Immunomodulatory Function of Polyvinylpyrrolidone (PVP)-Functionalized Gold Nanoparticles in Vibrio -Stimulated Sea Urchin Immune Cells
Alijagic, Andi (Istituto per la Ricerca e l'Innovazione Biomedica)
Bonura, Angela (Istituto per la Ricerca e l'Innovazione Biomedica)
Barbero, Francesco (Institut Català de Nanociència i Nanotecnologia)
Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
Gervasi, Francesco (Hospitals Civico Di Cristina e Benfratelli)
Pinsino, Annalisa (Istituto per la Ricerca e l'Innovazione Biomedica)

Data:	2021
Resum:	We investigated the role of the gold nanoparticles functionalized with polyvinylpyrrolidone (PVP-AuNPs) on the innate immune response against an acute infection caused by Vibrio anguillarum in an in vitro immunological nonmammalian next-generation model, the sea urchin Paracentrotus lividus. To profile the immunomodulatory function of PVP-AuNPs (0. 1 μg mL −1) in sea urchin immune cells stimulated by Vibrio (10 μg mL −1) for 3 h, we focused on the baseline immunological state of the donor, and we analysed the topography, cellular metabolism, and expression of human cell surface antigens of the exposed cells, as well as the signalling leading the interaction between PVP-AuNPs and the Vibrio -stimulated cells. PVP-AuNPs are not able to silence the inflammatory signalling (TLR4/p38MAPK/NF-κB signalling) that involves the whole population of P. lividus immune cells exposed to Vibrio. However, our findings emphasise the ability of PVP-AuNPs to stimulate a subset of rare cells (defined here as Group 3) that express CD45 and CD14 antigens on their surface, which are known to be involved in immune cell maturation and macrophage activation in humans. Our evidence on how PVP-AuNPs may stimulate sea urchin immune cells represents an important starting point for planning new research work on the topic.
Ajuts:	European Commission 671881
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Proxy for human model ; Quiescence and immune activation ; Nanointeraction ; PVP-AuNPs antimicrobial function ; Infected sea urchin immune cells
Publicat a:	Nanomaterials, Vol. 11, Issue 10 (October 2021) , art. 2646, ISSN 2079-4991

DOI: 10.3390/nano11102646
PMID: 34685085

17 p, 10.0 MB

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