Candida albicans induces neutrophil extracellular traps and leucotoxic hypercitrullination via candidalysin Visa övriga samt affilieringar
2023 (Engelska) Ingår i: EMBO Reports, ISSN 1469-221X, E-ISSN 1469-3178, Vol. 24, nr 11, artikel-id e57571Artikel i tidskrift (Refereegranskat) Published
Abstract [en]
The peptide toxin candidalysin, secreted by Candida albicans hyphae, promotes stimulation of neutrophil extracellular traps (NETs). However, candidalysin alone triggers a distinct mechanism for NET-like structures (NLS), which are more compact and less fibrous than canonical NETs. Candidalysin activates NADPH oxidase and calcium influx, with both processes contributing to morphological changes in neutrophils resulting in NLS formation. NLS are induced by leucotoxic hypercitrullination, which is governed by calcium-induced protein arginine deaminase 4 activation and initiation of intracellular signalling events in a dose- and time-dependent manner. However, activation of signalling by candidalysin does not suffice to trigger downstream events essential for NET formation, as demonstrated by lack of lamin A/C phosphorylation, an event required for activation of cyclin-dependent kinases that are crucial for NET release. Candidalysin-triggered NLS demonstrate anti-Candida activity, which is resistant to nuclease treatment and dependent on the deprivation of Zn2+ . This study reveals that C. albicans hyphae releasing candidalysin concurrently trigger canonical NETs and NLS, which together form a fibrous sticky network that entangles C. albicans hyphae and efficiently inhibits their growth.
Ort, förlag, år, upplaga, sidor John Wiley & Sons, 2023. Vol. 24, nr 11, artikel-id e57571
Nyckelord [en]
chronic granulomatous disease, fungal immunology, histone citrullination, polymorphonuclear leucocytes, reactive oxygen species
Nationell ämneskategori
Mikrobiologi inom det medicinska området
Identifikatorer URN: urn:nbn:se:umu:diva-215387 DOI: 10.15252/embr.202357571 ISI: 001081020500001 PubMedID: 37795769 Scopus ID: 2-s2.0-85173538219 OAI: oai:DiVA.org:umu-215387 DiVA, id: diva2:1808037
Forskningsfinansiär Vetenskapsrådet, VR-MH2018-05909 Vetenskapsrådet, VR-MH2020-01764 Vetenskapsrådet, VR-MH2022-00850 Kempestiftelserna, CK-2033,U16 Wellcome trust, 214229_Z_18_Z Deutsche Forschungsgemeinschaft (DFG), 390713860 Vetenskapsrådet, 2019-01123 Hjärt-Lungfonden, 2019-01123 Stiftelsen Konung Gustaf V:s 80-årsfond Västra Götalandsregionen, TUAGBG-917531 2023-10-302023-10-302024-01-04 Bibliografiskt granskad