Abstract
Ferroptosis is a necrotic, non-apoptotic cell death modality triggered by unrestrained iron-dependent lipid peroxidation. By unveiling the regulatory mechanisms of ferroptosis and its relevance to various diseases, research over the past decade has positioned ferroptosis as a promising therapeutic target. The rapid growth of this research field presents challenges, associated with potentially inadequate experimental approaches that may lead to misinterpretations in the assessment of ferroptosis. Typical examples include assessing whether an observed phenotype is indeed linked to ferroptosis, and selecting appropriate animal models and small-molecule modulators of ferroptotic cell death. This Expert Recommendation outlines state-of-the-art methods and tools to reliably study ferroptosis and increase the reproducibility and robustness of experimental results. We present highly validated compounds and animal models, and discuss their advantages and limitations. Furthermore, we provide an overview of the regulatory mechanisms and the best-studied players in ferroptosis regulation, such as GPX4, FSP1, SLC7A11 and ACSL4, discussing frequent pitfalls in experimental design and relevant guidance. These recommendations are intended for researchers at all levels, including those entering the expanding and exciting field of ferroptosis research.
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Acknowledgements
We thank all our colleagues, especially K. Ono, J. Ito, W. Zhang, A. Levkina, M. Novikova, J. Zheng, T. Seibt, M. Aldrovandi, S.M. Lorenz, D. Chen, N. Yamada, G. Mardani, C. Xu and B. Henkelmann, for their help in organizing this Expert Recommendation. We thank S. Kobayashi and H. Sato for providing expert views about system xc−. M.C. received funding from the Deutsche Forschungsgemeinschaft (CO 291/7-1, the Priority Program SPP 2306 (grants CO 291/9-1, 461385412; CO 291/10-1, 461507177, CO 291/9-2, CO 291/10-2, CO 291/14-1) and the CRC TRR 353 (CO 291/11-1; 471011418), the German Federal Ministry of Education and Research FERROPATH (grant 01EJ2205B) and the European Research Council under the European Union’s Horizon 2020 research and innovation program (grant GA 884754). D.A.P. thanks the Natural Sciences and Engineering Research Council of Canada for their continued support (RGPIN-2022-05058). Work in the Fedorova lab is supported by ‘Sonderzuweisung zur Unterstützung profilbestimmender Struktureinheiten der TUD’ by the SMWK, TG70 by Sächsische Aufbaubank and SMWK, the measure is cofinanced with tax funds based on the budget passed by the Saxon state parliament (to M.F.), Deutsche Forschungsgemeinschaft (grant FE 1236/5-1 to M.F.) and Bundesministerium für Bildung und Forschung (grant 01EJ2205A, FERROPath to M.F.). S.J.D. is supported by the USA National Institutes of Health (grant R01GM122923). E.M. thanks the Research Grant of Sapporo Bioscience Foundation and Food Science Institute Foundation (Ryoshoku Kenkyuukai).
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E.M., T.N., A.W. and M.C. wrote the article. S.D., B.P., M.F., D.A.P., J.P.F.A. and S.J.D. contributed substantially to the discussion of the content. All authors reviewed and edited the manuscript before submission.
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M.C. and B.P. are cofounders and shareholders of ROSCUE Therapeutics GmbH. D.A.P. is a cofounder and shareholder of Prothegen Inc. S.J.D. holds patents related to ferroptosis. M.C., B.P. and T.N. have filed patents for some of the compounds described herein.
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41580_2025_843_MOESM2_ESM.mp4
Supplementary Video 1. Live imaging of cells undergoing ferroptosis. Pfa1 cells with inducible Gpx4 deletion following treatment with 4-hydroxytamoxifen. The video was captured using Nanolive 3D Cell Explorer 42–56 h after the addition of 4-hydroxytamoxifen. E.M. produced the video.
Glossary
- 3′-UTR selenocysteine insertion sequence element
-
A stem loop-like secondary structure located in the 3′-untranslated region (UTR) of selenoprotein mRNAs, which affords decoding of UGA as a selenocysteine during translation.
- 4-hydroxy-2-nonenal
-
(4-HNE). An α,β-unsaturated hydroxyalkenal produced downstream of lipid peroxidation, which can react with specific amino acid residues (that is, histidine, cysteine and lysine) in proteins to generate Michael adducts in cells and tissues.
- C57BL/6J × 129S6/SvEv mixed background
-
F1 mice with mixed background strains derived from two inbred strains of C57BL/6J and 129S6/SvEv mice.
- Epilipidomic studies
-
A method to analyse a subset of natural lipidome formed by lipid modifications (for example oxidation) required to regulate complex biological functions.
- Fenton reaction
-
A reaction in which iron or other transition metals catalyse the disproportionation of hydrogen peroxide into highly reactive hydroxyl radical and a hydroperoxide ion.
- Gpx4 U46C mutant mice
-
Transgenic mice carrying a targeted mutation of the catalytically active site selenocysteine (U46) to Cys of Gpx4.
- Ischaemia-reperfusion injury
-
(IRI). Transient ischaemia, followed by reperfusion, generates oxygen-centred radicals that trigger extensive cell death and inflammatory responses in the affected organs, leading to acute tissue damage.
- Karyolysis
-
Complete dissolution of nuclear components in a dying cell.
- Lipid hydroperoxides
-
The primary products of lipid peroxidation, resulting from propagation by H-atom transfer, can be further reduced or oxidized to yield radicals that initiate additional lipid peroxidation and/or produce secondary reactive lipid aldehydes.
- Lipid peroxidation
-
Generally refers to the autoxidation of lipids, a free radical chain reaction in which oxygen is incorporated into hydrocarbons to form peroxides, resulting in the production of lipid hydroperoxides when the chain reaction is propagated by H-atom transfer from a lipid or lipid peroxides when propagated by addition to a lipid.
- Necroptosis
-
A regulated, necrotic cell death modality mediated by receptor-interacting protein kinase 3 (RIPK3) activity and ensuing pore formation by mixed-lineage kinase domain-like pseudokinase.
- Parvalbumin-expressing GABAergic interneurons
-
The principal inhibitory interneurons in the brain cortex.
- Phospholipids
-
Amphiphilic molecules with a hydrophilic head containing a phosphate group (for example phosphocholine and phosphoethanolamine) and two hydrophobic fatty acid tails esterified to the glycerol moiety, which are key component of cell membranes.
- Plasmalogens
-
A unique class of phospholipids containing a vinyl ether bond at the sn-1 position, with its synthesis initiated in peroxisomes and endoplasmic reticulum.
- Pyknosis
-
Condensation of the nucleus and chromatin, often observed in cells undergoing cell death.
- Radical-trapping antioxidants
-
(RTAs). Compounds that react with radical chain-propagating radicals to form non-propagating radicals31,123.
- Regulated necrosis
-
A type of programmed cell death involving plasma membrane rupture and including various modalities, such as ferroptosis and necroptosis.
- Selenocysteinyl-tRNA
-
A specific tRNA responsible for incorporating selenocysteine into selenoproteins during translation.
- Selenoproteins
-
An exclusive group of selenium-containing proteins in which selenocysteine, the 21st proteinogenic amino acid, is cotranslationally incorporated into the protein and is usually present at the catalytically active site.
- Tetrahydrobiopterin
-
(BH4). A redox-active cofactor for several biosynthetic enzymes, also functioning as an RTA by reacting with peroxyl radicals, yielding oxidation products such as dihydrobiopterin (BH2), which can be reduced back to BH4 by the enzyme dihydrofolate reductase.
- Thiol-containing molecules
-
Organic molecules that contain a sulfhydryl group.
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Mishima, E., Nakamura, T., Doll, S. et al. Recommendations for robust and reproducible research on ferroptosis. Nat Rev Mol Cell Biol 26, 615–630 (2025). https://doi.org/10.1038/s41580-025-00843-2
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DOI: https://doi.org/10.1038/s41580-025-00843-2
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