Autophagy Receptor p62 Regulates SARS-CoV-2-Induced Inflammation in COVID-19
2023
Аутори:
Paunović, VericaVučićević, Ljubica
Misirkić Marjanović, Maja
Perović, Vladimir
Ristić, Biljana
Bošnjak, Mihajlo
Mandić, Miloš
Stevanović, Danijela
Harhaji-Trajković, Ljubica
Lalošević, Jovan
Nikolić, Miloš
Bonači-Nikolić, Branka
Trajković, Vladimir
Тип документа:
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт:
As autophagy can promote or inhibit inflammation, we examined autophagy-inflammation interplay in COVID-19. Autophagy markers in the blood of 19 control subjects and 26 COVID-19 patients at hospital admission and one week later were measured by ELISA, while cytokine levels were examined by flow cytometric bead immunoassay. The antiviral IFN-α and proinflammatory TNF, IL-6, IL-8, IL-17, IL-33, and IFN-γ were elevated in COVID-19 patients at both time points, while IL-10 and IL-1β were increased at admission and one week later, respectively. Autophagy markers LC3 and ATG5 were unaltered in COVID-19. In contrast, the concentration of autophagic cargo receptor p62 was significantly lower and positively correlated with TNF, IL-10, IL-17, and IL-33 at hospital admission, returning to normal levels after one week. The expression of SARS-CoV-2 proteins NSP5 or ORF3a in THP-1 monocytes caused an autophagy-independent decrease or autophagy-inhibition-dependent increase, respectively, of intracellular/secreted p62, as confirmed by immunoblot/ELISA. This was associated with an NSP5-mediated decrease in TNF/IL-10 mRNA and an ORF3a-mediated increase in TNF/IL-1β/IL-6/IL-10/IL-33 mRNA levels. A genetic knockdown of p62 mimicked the immunosuppressive effect of NSP5, and a p62 increase in autophagy-deficient cells mirrored the immunostimulatory action of ORF3a. In conclusion, the proinflammatory autophagy receptor p62 is reduced inacute COVID-19, and the balance between autophagy-independent decrease and autophagy blockade-dependent increase of p62 levels could affect SARS-CoV-induced inflammation.
Кључне речи:
autophagy; inflammation; COVID-19; p62; NSP; ORF3aИзвор:
Cells, 2023, 12, 9, 1282-Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200007 (Универзитет у Београду, Институт за биолошка истраживања 'Синиша Станковић') (RS-MESTD-inst-2020-200007)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200110 (Универзитет у Београду, Медицински факултет) (RS-MESTD-inst-2020-200110)
- TACTICIAN – Targeting Autophagy to Combat SARS-CoV2-induced Immune Dysregulation (RS-ScienceFundRS-Fond_2020_COVID19-7552006)
DOI: 10.3390/cells12091282
ISSN: 2073-4409
PubMed: 37174682