Candida albicans induces neutrophil extracellular traps and leucotoxic hypercitrullination via candidalysinVisa 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-215387DOI: 10.15252/embr.202357571ISI: 001081020500001PubMedID: 37795769Scopus ID: 2-s2.0-85173538219OAI: oai:DiVA.org:umu-215387DiVA, id: diva2:1808037
Forskningsfinansiär
Vetenskapsrådet, VR-MH2018-05909Vetenskapsrådet, VR-MH2020-01764Vetenskapsrådet, VR-MH2022-00850Kempestiftelserna, CK-2033,U16Wellcome trust, 214229_Z_18_ZDeutsche Forschungsgemeinschaft (DFG), 390713860Vetenskapsrådet, 2019-01123Hjärt-Lungfonden, 2019-01123Stiftelsen Konung Gustaf V:s 80-årsfondVästra Götalandsregionen, TUAGBG-9175312023-10-302023-10-302024-01-04Bibliografiskt granskad