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EnglishMacrophage activation by Toll receptors is an essential event in the development of the response against pathogens. NOTCH signaling pathway is involved in the control of macrophage activation and the inflammatory processes. In this work, we have characterized NOTCH signaling in macrophages activated by Toll-like receptor (TLR) triggering and determined that DLL1 and DLL4 are the main ligands responsible for NOTCH signaling. We have identified ADAM10 as the main protease implicated in NOTCH processing and activation. We have also observed that furin, which processes NOTCH receptors, is induced by TLR signaling in a NOTCH-dependent manner. NOTCH3 is the only NOTCH receptor expressed in resting macrophages. Its expression increased rapidly in the first hours after TLR4 activation, followed by a gradual decrease, which was coincident with an elevation of the expression of the other NOTCH receptors. All NOTCH1, 2 and 3 contribute to the increased NOTCH signaling detected in activated macrophages. We also observed a crosstalk between NOTCH3 and NOTCH1 during macrophage activation. Finally, our results highlight the relevance of NOTCH3 in the activation of NF-κB, increasing p65 phosphorylation by p38 MAP kinase. Our data identify, for the first time, NOTCH3 as a relevant player in the control of inflammation.
NOTCH3 signaling is essential for NF-κB activation in TLR-activated macrophages / Lopez-Lopez, S.; Monsalve, E. M.; Romero de Avila, M. J.; Gonzalez-Gomez, J.; Hernandez de Leon, N.; Ruiz-Marcos, F.; Baladron, V.; Nueda, M. L.; Garcia-Leon, M. J.; Screpanti, I.; Felli, M. P.; Laborda, J.; Garcia-Ramirez, J. J.; Diaz-Guerra, M. J. M.. - In: SCIENTIFIC REPORTS. - ISSN 2045-2322. - 10:1(2020). [10.1038/s41598-020-71810-4]
| Titolo: | NOTCH3 signaling is essential for NF-κB activation in TLR-activated macrophages | |
| Autori: | ||
| Data di pubblicazione: | 2020 | |
| Rivista: | ||
| Citazione: | NOTCH3 signaling is essential for NF-κB activation in TLR-activated macrophages / Lopez-Lopez, S.; Monsalve, E. M.; Romero de Avila, M. J.; Gonzalez-Gomez, J.; Hernandez de Leon, N.; Ruiz-Marcos, F.; Baladron, V.; Nueda, M. L.; Garcia-Leon, M. J.; Screpanti, I.; Felli, M. P.; Laborda, J.; Garcia-Ramirez, J. J.; Diaz-Guerra, M. J. M.. - In: SCIENTIFIC REPORTS. - ISSN 2045-2322. - 10:1(2020). [10.1038/s41598-020-71810-4] | |
| Handle: | http://hdl.handle.net/11573/1465904 | |
| Appartiene alla tipologia: | 01a Articolo in rivista |
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| File | Note | Tipologia | Licenza | |
|---|---|---|---|---|
| Lopez-Lopez_NOTCH3_2020.pdf | Versione editoriale (versione pubblicata con il layout dell'editore) |  | Open Access Visualizza/Apri |
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