Show simple item record

dc.contributor.authorMueller, T
dc.contributor.authorDewitz, C
dc.contributor.authorSchmitz, J
dc.contributor.authorSchroeder, AS
dc.contributor.authorBraesen, JH
dc.contributor.authorStockwell, BR
dc.contributor.authorMurphy, JM
dc.contributor.authorKunzendorf, U
dc.contributor.authorKrautwald, S
dc.date.accessioned2021-02-04T01:37:56Z
dc.date.available2021-02-04T01:37:56Z
dc.date.issued2017-10-01
dc.identifierpii: 10.1007/s00018-017-2547-4
dc.identifier.citationMueller, T., Dewitz, C., Schmitz, J., Schroeder, A. S., Braesen, J. H., Stockwell, B. R., Murphy, J. M., Kunzendorf, U. & Krautwald, S. (2017). Necroptosis and ferroptosis are alternative cell death pathways that operate in acute kidney failure. CELLULAR AND MOLECULAR LIFE SCIENCES, 74 (19), pp.3631-3645. https://doi.org/10.1007/s00018-017-2547-4.
dc.identifier.issn1420-682X
dc.identifier.urihttp://hdl.handle.net/11343/259426
dc.description.abstractFerroptosis is a recently recognized caspase-independent form of regulated cell death that is characterized by the accumulation of lethal lipid ROS produced through iron-dependent lipid peroxidation. Considering that regulation of fatty acid metabolism is responsible for the membrane-resident pool of oxidizable fatty acids that undergo lipid peroxidation in ferroptotic processes, we examined the contribution of the key fatty acid metabolism enzyme, acyl-CoA synthetase long-chain family member 4 (ACSL4), in regulating ferroptosis. By using CRISPR/Cas9 technology, we found that knockout of Acsl4 in ferroptosis-sensitive murine and human cells conferred protection from erastin- and RSL3-induced cell death. In the same cell types, deletion of mixed lineage kinase domain-like (Mlkl) blocked susceptibility to necroptosis, as expected. Surprisingly, these studies also revealed ferroptosis and necroptosis are alternative, in that resistance to one pathway sensitized cells to death via the other pathway. These data suggest a mechanism by which one regulated necrosis pathway compensates for another when either ferroptosis or necroptosis is compromised. We verified the synergistic contributions of ferroptosis and necroptosis to tissue damage during acute organ failure in vivo. Interestingly, in the course of pathophysiological acute ischemic kidney injury, ACSL4 was initially upregulated and its expression level correlated with the severity of tissue damage. Together, our findings reveal ACSL4 to be a reliable biomarker of the emerging cell death modality of ferroptosis, which may also serve as a novel therapeutic target in preventing pathological cell death processes.
dc.languageEnglish
dc.publisherSPRINGER BASEL AG
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.titleNecroptosis and ferroptosis are alternative cell death pathways that operate in acute kidney failure
dc.typeJournal Article
dc.identifier.doi10.1007/s00018-017-2547-4
melbourne.affiliation.departmentMedical Biology (W.E.H.I.)
melbourne.affiliation.facultyMedicine, Dentistry & Health Sciences
melbourne.source.titleCellular and Molecular Life Sciences
melbourne.source.volume74
melbourne.source.issue19
melbourne.source.pages3631-3645
dc.rights.licenseCC BY
melbourne.elementsid1213792
melbourne.contributor.authorMurphy, James
dc.identifier.eissn1420-9071
melbourne.accessrightsOpen Access


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record