Peripheral nervous system is injured by neutrophil extracellular traps ( NETs) elicited by nonstructural ( NS) protein‐1 from Zika virus
Abstract The involvement of innate immune mediators to the Zika virus (ZIKV)‐induced neuroinflammation is not yet well known. Here, we investigated whether neutrophil extracellular traps (NETs), which are scaffolds of DNA associated with proteins, have the potential to injure peripheral nervous. The tissue lesions were evaluated after adding NETs to dorsal root ganglia (DRG) explants and to DRG constituent cells or injecting them into mouse sciatic nerves. Identification of NET harmful components was achieved by pharmacological inhibition of NET constituents. We found that ZIKV inoculation into sciatic nerves recruited neutrophils and elicited the production of the cytokines CXCL1 and IL‐1β, classical NET inducers, but did not trigger NET formation. ZIKV blocked PMA‐ and CXCL8‐induced NET release, but, in contrast, the ZIKV nonstructural protein (NS)‐1 induced NET formation. NET‐enriched supernatants were toxic to DRG explants, decreasing neurite area, length, and arborization. NETs were toxic to DRG constituent cells and affected myelinating cells. Myeloperoxidase (MPO) and histones were identified as the harmful component of NETs. NS1 injection into mouse sciatic nerves recruited neutrophils and triggered NET release and caspase‐3 activation, events that were also elicited by the injection of purified MPO. In summary, we found that ZIKV NS1 protein induces NET formation, which causes nervous tissue damages. Our findings reveal new mechanisms leading to neuroinflammation by ZIKV..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:37 |
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| Enthalten in: |
The FASEB Journal - 37(2023), 9 |
| Beteiligte Personen: |
Siqueira Santos, Raphael [VerfasserIn] |
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| Anmerkungen: |
© 2023 Federation of American Societies for Experimental Biology |
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| Umfang: |
20 |
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| doi: |
10.1096/fj.202201904R |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
WLY015711331 |
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| 100 | 1 | |a Siqueira Santos, Raphael |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Peripheral nervous system is injured by neutrophil extracellular traps ( NETs) elicited by nonstructural ( NS) protein‐1 from Zika virus |
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| 520 | |a Abstract The involvement of innate immune mediators to the Zika virus (ZIKV)‐induced neuroinflammation is not yet well known. Here, we investigated whether neutrophil extracellular traps (NETs), which are scaffolds of DNA associated with proteins, have the potential to injure peripheral nervous. The tissue lesions were evaluated after adding NETs to dorsal root ganglia (DRG) explants and to DRG constituent cells or injecting them into mouse sciatic nerves. Identification of NET harmful components was achieved by pharmacological inhibition of NET constituents. We found that ZIKV inoculation into sciatic nerves recruited neutrophils and elicited the production of the cytokines CXCL1 and IL‐1β, classical NET inducers, but did not trigger NET formation. ZIKV blocked PMA‐ and CXCL8‐induced NET release, but, in contrast, the ZIKV nonstructural protein (NS)‐1 induced NET formation. NET‐enriched supernatants were toxic to DRG explants, decreasing neurite area, length, and arborization. NETs were toxic to DRG constituent cells and affected myelinating cells. Myeloperoxidase (MPO) and histones were identified as the harmful component of NETs. NS1 injection into mouse sciatic nerves recruited neutrophils and triggered NET release and caspase‐3 activation, events that were also elicited by the injection of purified MPO. In summary, we found that ZIKV NS1 protein induces NET formation, which causes nervous tissue damages. Our findings reveal new mechanisms leading to neuroinflammation by ZIKV. | ||
| 700 | 1 | |a Rochael, Natalia Cadaxo |4 aut | |
| 700 | 1 | |a Mattos, Thayana Roberta F. |4 aut | |
| 700 | 1 | |a Fallett e Silva, Matheus Felipe |4 aut | |
| 700 | 1 | |a Linhares‐Lacerda, Leandra |4 aut | |
| 700 | 1 | |a Oliveira, Leandro Teixeira |4 aut | |
| 700 | 1 | |a Cunha, Marcela Sabino |4 aut | |
| 700 | 1 | |a Mohana‐Borges, Ronaldo |4 aut | |
| 700 | 1 | |a Gomes, Tiago Araujo |4 aut | |
| 700 | 1 | |a Barbosa‐Silva, Maria Carolina |4 aut | |
| 700 | 1 | |a Maron‐Gutierrez, Tatiana |4 aut | |
| 700 | 1 | |a Foguel, Debora |4 aut | |
| 700 | 1 | |a Saraiva, Elvira Maria |4 aut | |
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