Article (Périodiques scientifiques)
NLRP3-directed antisense oligonucleotides reduce microglial immunoactivities in vitro.
Braatz, Charlotte; Komes, Max P; Ravichandran, Kishore Aravind et al.
2023In Journal of Neurochemistry
Peer reviewed vérifié par ORBi
 

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Mots-clés :
Alzheimer's disease; Aβ; NLRP3 inflammasome; antisense oligonucleotides; innate immunity; microglia; neuroinflammation; Biochemistry; Cellular and Molecular Neuroscience; A beta
Résumé :
[en] Alzheimer's disease (AD) is associated with the cerebral deposition of Amyloid-β (Aβ) peptide, which leads to NLRP3 inflammasome activation and subsequent release of interleukin-1β (IL-1β) and interleukin-18 (IL-18). NLRP3 reduction has been found to increase microglial clearance, protect from synapse loss, and suppress both the changes to synaptic plasticity and spatial memory dysfunction observed in murine AD models. Here, we test whether NLRP3-directed antisense oligonucleotides (ASOs) can be harnessed as immune modulators in primary murine microglia and human THP-1 cells. NLRP3 mRNA degradation was achieved at 72 h of ASO treatment in primary murine microglia. Consequently, NLRP3-directed ASOs significantly reduced the levels of cleaved caspase-1 and mature IL-1β when microglia were either activated by LPS and nigericin or LPS and Aβ. In human THP-1 cells NLRP3-targeted ASOs also significantly reduced the LPS plus nigericin- or LPS plus Aβ-induced release of mature IL-1β. Together, NLRP3-directed ASOs can suppress NLRP3 inflammasome activity and subsequent release of IL-1β in primary murine microglia and THP-1 cells. ASOs may represent a new and alternative approach to modulate NLRP3 inflammasome activation in neurodegenerative diseases, in addition to attempts to inhibit the complex pharmacologically.
Disciplines :
Sciences du vivant: Multidisciplinaire, généralités & autres
Biochimie, biophysique & biologie moléculaire
Neurologie
Auteur, co-auteur :
Braatz, Charlotte ;  Institute for Innate Immunity, University of Bonn, Bonn, Germany
Komes, Max P;  Institute for Innate Immunity, University of Bonn, Bonn, Germany
Ravichandran, Kishore Aravind ;  Institute for Innate Immunity, University of Bonn, Bonn, Germany ; German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
de Fragas, Matheus Garcia ;  Institute for Innate Immunity, University of Bonn, Bonn, Germany ; German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany ; Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
Griep, Angelika ;  Institute for Innate Immunity, University of Bonn, Bonn, Germany ; German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
Schwartz, Stephanie;  Institute for Innate Immunity, University of Bonn, Bonn, Germany
McManus, Róisín M ;  Institute for Innate Immunity, University of Bonn, Bonn, Germany ; German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
HENEKA, Michael  ;  University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB) ; Institute for Innate Immunity, University of Bonn, Bonn, Germany ; Department of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
NLRP3-directed antisense oligonucleotides reduce microglial immunoactivities in vitro.
Date de publication/diffusion :
17 février 2023
Titre du périodique :
Journal of Neurochemistry
ISSN :
0022-3042
eISSN :
1471-4159
Maison d'édition :
John Wiley and Sons Inc, England
Peer reviewed :
Peer reviewed vérifié par ORBi
Organisme subsidiant :
Alzheimer Forschung Initiative
Deutsche Forschungsgemeinschaft
Deutscher Akademischer Austauschdienst
Subventionnement (détails) :
We thank I. Rácz for help with laboratory administration and S. Opitz and F. Santarelli for technical assistance. This work was funded by Deutscher Akademischer Austauschdienst, (Grant / Award Number: 'scholarship') Alzheimer Forschung Initiative, (Grant / Award Number: '20043') Deutsche Forschungsgemeinschaft, (Grant / Award Number: 'EXC2151 – 390873048 ') BONFOR research commission of the medical faculty of the University of Bonn, (Grant / Award Number: '2021‐4‐06'). Open Access funding enabled and organized by Projekt DEAL.
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depuis le 21 novembre 2023

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